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A current review on boron nitride nanotubes and their applications Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2024-02-06 Adithya Lenin Tamilkovan, Pandurangan Arumugam
BNNTs are the tubular variants of the ceramic compound hexagonal boron nitride (hBN) and are known for their high thermal and chemical stability. The research on BNNTs is ever-evolving, researchers are on a quest to optimise the synthesis procedure for the nanomaterial. Here a variety of currently followed synthesis techniques were discussed and compared. X-ray diffraction patterns and electron microscopy
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A review on the types of nanomaterials and methodologies used for the development of biosensors Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2024-02-02 Sourav Ghosh, K Martin Sagayam, Dibyajyoti Haldar, A Amir Anton Jone, Biswaranjan Acharya, Vassilis C Gerogiannis, Andreas Kanavos
Biosensors have gained significant attention in various fields such as food processing, agriculture, environmental monitoring, and healthcare. With the continuous advancements in research and technology, a wide variety of biosensors are being developed to cater to diverse applications. However, the effective development of nanobiosensors, particularly the synthesis of nanomaterials, remains a crucial
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Biogenic synthesis of silver, gold, and palladium nanoparticles using moringa oleifera seeds: exploring photocatalytic, catalytic, and antimicrobial activities Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2024-01-19 M S Anandha Prabhu, G Edwin Sheela, Abeer M Mohammad, Rabab A Hegazy, S Sasi Florence, V Sarojini
In this study, we explored the green synthesis of metal nanoparticles (Ag-NPs, Au-NPs, and Pd-NPs) using Moringa oleifera seed (MOS) extract, which is known for its nutrient density, antioxidant properties, anti-inflammatory effects, and potential benefits in managing cholesterol, blood sugar levels, as well as promoting digestion, skin, and hair health. The nanoparticles’ size was controlled by varying
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Synthesis and application of ZSM-5/Graphene composite for photocatalytic degradation of industrial dyes Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2024-01-19 Veena Sodha, Mahuya Bandyopadhyay, Rama Gaur, Rajib Bandyopadhyay, Syed Shahabuddin
Various materials and technologies are being employed to address the concern of increased wastewater generation. In this work, the synthesis of ZSM-5 (Zeolite Socony Mobil-5) and graphene (GR) composite, their characterisation, and application for the removal of dyes are presented. Two composites of ZSM-5 and GR composites were prepared via the hydrothermal method by varying the loading amount of GR
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Study on immobilisation process on lateral flow assay test strip for detection of Enrofloxacin antibiotic by inkjet printing Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2024-01-17 Duc Minh Trinh Dinh, Anh Van Thi Le, Phuong Hong Lam, Mai Thi Le, Dung My Thi Dang, Chien Mau Dang, Ngan Nguyen Le
Enrofloxacin has been widely and increasingly used in veterinary medicine to treat infection on animals which could lead to antibiotic resistance for the consumer. Among the available detection techniques for Enrofloxacin, immunoassay lateral flow test strip is realised to be a rapid and accurate detection method for on-site analysis of Enrofloxacin antibiotic. The current study aims to analyse the
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Hetero-epitaxial grown Pt@Au core-shell bimetallic nanoparticles on reduced graphene oxide (RGO) as electrocatalyst for oxygen reduction reaction in alkaline media Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2024-01-17 P Raghavendra, Y Chandra Sekhar, G Vishwakshan Reddy, P Sri Chandana, L Subramanyam Sarma
The core-shell structured Pt@Aubimetallic nanoparticles (NPs) were decorated on the reduced graphene oxide (RGO) surface by a heteroepitaxial growth method. The morphological details of Pt@Au/RGO core/shell bimetallic NPs were assessed by high-resolution transmission electron microscopy (HR-TEM), x-ray diffraction (XRD), and energy-dispersive x-ray spectroscopy (EDS). Electron microscopy results revealed
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Highly uniform core/shell structures AuR/Ag and AuR/Ag@BSA with various shell thicknesses for surface-enhanced Raman scattering Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2024-01-16 Khac Khoi Tran, Tien Ha Le, Viet Ha Chu, Thi Hue Do
This work indicates the synthesis of uniform core/shell nanostructures (AuR/Ag) with different thicknesses of Ag shell by the double seed method. This method consists of two self-sufficient progresses, one seed for the formation of gold nanorods (AuRs) and one for the formation of the Ag shell for the gold nanorods to form the AuR/Ag. Acid ascorbic (L-AA) acts as a weak reducing agent and hexadecyltrimethylammonium
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Synthesis and mechanistic approach to investigate crystallite size of NbSe2 nanoparticles Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2024-01-16 Shivani R Bharucha, Mehul S Dave, Ranjan Kr Giri, Sunil H Chaki, Tushar A Limbani
Niobium diselenide (NbSe2) belongs to the class of transition metal dichalcogenides (TMDCs) and exhibits peculiar features such as charge density waves, superconductivity, and periodic crystal lattice distortion. The main focus of the article is the synthesis and characterisation of NbSe2 NPs utilising the wet chemical precursor solution route at room temperature, followed by in-depth x-ray diffraction
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Synthesis, evaluation, and monitoring of red amaranth extract for power production Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2024-01-16 N Y Tanisa, K A Khan, M Salahuddin
The scientific paper describes the synthesis of silver nanoparticles (Ag NPs) using a fresh red amaranth preparation and explores their potential to enhance the output current of a red amaranth bio-electrolytic cell. The study employed various analytical techniques such as x-ray diffraction (XRD), Fourier transform infrared (FTIR), ultraviolet-visible spectroscopy (UV–vis), dynamic light scattering
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Fe2O3/C nanomaterials synthesized by microwave for energy storage applications Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-11-30 Bui Thi Hang, Tran Van Dang, Nguyen Van Quy
In this study, Fe(NO3)3.6H2O was used as the iron source for synthesising Fe2O3 and Fe2O3/C nanomaterials by microwave together with calcination. Physical characterisations of the synthesised materials have been evaluated by x-ray diffraction (XRD) and scanning electron microscopy (SEM) together with x-ray energy-dispersive spectroscopy (EDS), respectively. The Fe2O3/C composite electrodes were prepared
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A PEDOT-Pt-TiO2 hybrid material synthesized by the casting method for photocatalytic hydrogen generation Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-11-22 Marek P Kobylański, Agnieszka Tercjak, Hynd Remita, Xiaojiao Yuan, Onur Cavdar, Junkal Gutierrez, Adriana Zaleska-Medynska
This study describes the synthesis and characterisation of a hybrid material consisting of titanium dioxide nanotube arrays (TiO2 NTs) modified by platinum nanoparticles (Pt-TiO2 NTs) via radiolysis and a conductive poly(3,4-ethylenedioxythiophene) (PEDOT) layer, for the first time. The NTs were fabricated by a two-step anodic oxidation process and exhibited different morphologies using electrolyte
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Blend of polyvinylpyrrolidone/thermally reduced graphene for adsorption of heavy metal ions in water Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-11-16 Diep Ngoc Le, Linh Duy Nguyen, Dong Duy Tran, Tan Le Hoang Doan, Chien Mau Dang, Tin Chanh Duc Doan
This paper presents the preparation of a modified polyvinylpyrrolidone (PVP)/graphene mixture and evaluates its adsorption capacity for heavy metal ions in water. Graphene with a high specific surface area of about 362 m2 g−1 was obtained through the thermal separation of graphite oxide (GO), which had been synthesised from graphite by the Hummer method. The graphene-PVP blend was prepared by dispersing
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Fucoidan and dendrimer-based nanocapsule exhibiting effectiveness in methotrexate controlled delivery towards rheumatoid arthritis treatment Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-11-16 Dinh Trung Nguyen, Hai Phuong Doan, Thi Kim Ngan Tran, Chan Khon Huynh, Ngoc Quyen Tran, Le Hang Dang
In recent years, nanomaterials have been intensively studied and applied in various fields, including pharmaceutical applications. This platform can act as a carrier for anticancer drugs or for insoluble bioactive compounds. To increase the stability and prolong the effect of anticancer drugs, we have incorporated a sulfated polysaccharide fucoidan (Fu) into PAMAM dendrimer G3.0 to form a G3.0-Fu complex
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Investigating the electrochemical and antibacterial activities of nickel pyrophosphate [a-Ni2P2O7] nanostructures Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-11-16 A Juliet Christina Mary, M Santhanalakshmi, L Lavanya
Nickel pyrophosphate nanostructures have been synthesized by a simple co-precipitation method. Annealing temperature affected the crystal structure formation of α-Ni2P2O7 and altered the surface morphology. By increasing the annealing temperature from 350 °C to 900 °C, the morphology of the material varies from irregularly shaped agglomerated particles to dumbbell-shaped nanoparticles respectively
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Enhancing photoluminescence performance and pH photostability of nitrogen-doped graphene quantum dots via surface-passivated by polyethylene glycol Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-11-15 Tri Bao Ngoc Pham, Thuy Ngoc Thi Vo
The photoluminescence (PL) properties of nitrogen-doped graphene quantum dots (NGQDs) are highly dependent on reaction parameters. In this study, we developed new and fast protocols to surface passivate NGQDs with polyethylene glycol (PEG) using microwave irradiation. The resulting NGQDs-PEG exhibited highly stable PL with an emission peak at 424 nm when excited at 325 nm. The PL intensity of NGQDs
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Coupling and interface effects in MoS2/WSe2 van der Waals nanostructure Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-11-15 Nouha Mastour, Mohsen Jemaï, Said Ridene
In this work we report the effects of the interface coupling, the effective mass, the Hartree and exchange–correlation potential on the total energy in quasi-2D MoS2/WSe2 van der Waals nanostructure. Analytical and numerical solutions of the total energy as a function of carrier density and effective mass are determined without self-consistent calculation. The calculation carefully indicates how the
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Effect of Zn/S/TGA concentration on the stability and optical properties of TGA capped ZnS quantum dots synthesized via one pot aqueous synthesis method Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-11-15 Sushma M, Mahaboob Pasha U, Jai Kumar B, H M Mahesh, G Nagaraju
Aqueous ZnS quantum dots (QDs) were synthesised via a facile, cost-effective one-pot synthesis method in the ambient environment. To achieve most favourable ratios of thioglycolic acid (TGA):zinc (Zn):sulphide (S), the concentration optimisation by optical spectra (COOS) method was adopted. The x-ray diffraction (XRD) spectra confirmed the zinc-blende (cubic) phase of ZnS quantum dots (QDs), and Scherrer’s
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Anti-corrosion and icephobic approach on rose leaf biomimetic surface Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-11-15 Thanh-Binh Nguyen, Nguyen Thanh Trung, Nguyen Thanh Vinh, Vu Thi Hong Hanh
This study proposes a facile method for superhydrophobic and slippery-infused porous surfaces for water repellency and anti-icing purposes. Both adhesion force and time delaying were systematically investigated, showing their strong dependence on surface parameters and slipperiness. The uniform patterns of nanoscale textures inspired by rose leaf structure have been generated on silicon wafers using
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Unraveling the limiting factors to electron mobility in degenerately doped SnO2 thin films Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-11-10 Viet Huong Nguyen, Hang Tran Thi My, Huong T.T. Ta, Kha Anh Vuong, Hoai Hue Nguyen, Thien Thanh Nguyen, Ngoc Linh Nguyen, Hao Van Bui
This paper presents a comprehensive theoretical study on electron mobility in highly doped polycrystalline SnO2 thin films, a widely employed material in modern devices. Our physical model incorporates phonon-electron interaction, ionised impurity, and grain boundaries as scattering mechanisms, effectively explaining the temperature and electron density-dependent variation of electron mobility in doped
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Synthesis of heparin-and-poloxamer P407-based nanogel carrying PTX for orientating in treatment of breast cancer Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-10-27 Ngoc The Nguyen
In this study, nanogels based on the conjugation of heparin and poloxamer P407 (HR-P407) with different grafting ratios were successfully synthesised. The structural properties of products were evaluated by Fourier-transform infrared spectroscopy (FT-IR) and proton nuclear magnetic resonance (1H-NMR). The morphology and size of nanoparticles were assessed by dynamic light scattering (DLS) method, which
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Effect of Cu doping on structural and magnetic properties of Cu x Zn1-x Fe2O4 nanoparticles for biomedical applications Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-10-26 Shrinivas G Jamdade, Popat S Tambade, Sopan M Rathod
Nano-ferrites with chemical equation Cu x Zn1-x Fe2O4 (x = 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 and 0.7) were prepared by sol–gel auto-combustion method to study structural and magnetic properties along with antibacterial and antifungal activity. The samples are sintered in air at 400 °C for 4 h. The samples are characterised by x-ray diffraction (XRD), ultraviolet (UV), Fourier-transform infrared spectroscopy
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A review of some metal-oxide based nanocomposites for photocatalytic treatment of wastewater Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-10-23 Shivani Gupta, Himanshu Narayan, Rakesh K Jain
The photocatalytic activity of nanosized composite materials based on some common metal-oxides has been reviewed in the context of their potential application in the treatment of wastewater. A large volume of published data has been systematically analysed to understand the process of photocatalytic degradation under various combinations of the material, dye and source of excitation. The quantities
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A fast fabrication technique of FTO/AuNPs electrochemical electrodes for on-site arsenic (III) detection Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-10-19 Van Vien Nguyen, Thu Hien Hoang Nguyen, Canh Minh Thang Nguyen, Hoang Long Ngo, Thanh Tung Nguyen, Viet Hai Le, Thai Hoang Nguyen
In this study, gold nanoelectrodes were fabricated via electrical deposition of gold nanoparticles (NPs) onto FTO electrodes using cyclic voltammetry (CV) in 1 M H3PO4 solution at a scan rate of 100 mV.s−1 in the potential range of 0–1.4 V and −0.5–0.6 V. The fabricated FTO/AuNP electrodes were characterised by UV–vis, scanning electron microscope, energy-dispersive X-ray spectroscopy, as well as CV
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Preparation of LiNbO3 nanoparticles by green synthesis laser ablation in water Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-10-18 Marwa S Alwazny, Raid A Ismail, Evan T Salim
The use of LiNbO3 nanoparticles in nonlinear applications is attractive and promising. The particle size and morphology of LiNbO3 are the key parameters affecting their application. In this study, spherical nanoparticles of lithium niobate were synthesised by nanosecond Nd:YAG laser ablation in water. The polycrystalline, rhombohedral structure of the synthesised LiNbO3 nanoparticles with x-ray diffraction
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Two–step pulsed laser ablation for preparation NiO@ZnO core-shell nanostructure and evaluation of their antibacterial activity Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-10-18 Hadeel J Imran, Kadhim A Aadim, Kadhim A Hubeatir
The excessive use of antibiotics led to the appearance of many strains of resistant bacteria, so it became necessary to use new antibacterial techniques. The aim of this work is the synthesis of novel core–shell NPs (NiO@ZnO) for antibacterial applications. A novel NiO@ZnO core–shell nanomaterial with a nanosize and uniform shape has been synthesised using the two-step pulsed laser ablation in liquid
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Green synthesis of recyclable reduced graphene oxide-gold nanocatalyst using Alstonia scholaris: Applications in waste water purification and microbial field Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-10-18 Piu Das, Bapan Bairy, Sanjukta Ghosh, Raktim Ghosh, Somasri Dam, Avijit Ghorai, Moni Baskey Sen
The green synthetic approaches are the alternative methods for the preparation of various types of nanoparticles to keep sustainable evolution. A novel green synthesis of gold- reduced graphene oxide nanocomposites was conducted through simple heating method using Alstonia scholaris (A. scholaris) bark extract. There are several techniques that confirm the formation of the nanocomposites for synthesis
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Potential of nanotheranostic zeolitic imidazolate frameworks in cancer management Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-10-17 Abduladheem Turki Jalil, Mohanad Ali Abdulhadi, Lubna R Al-Ameer, Doaa Saadi Kareem, Muna S Merza, Rahman S Zabibah, Ibrahem Galib
Cancer is a major threat to human health, and it is still the leading cause of death from disease. Due to how quickly nanomedicine is developing, it is thought that nanoscale metal–organic frameworks (MOF) could be used in the treatment and biomedical imaging of many types of cancer. More and more researchers are interested in zeolite imidazole framework (ZIF)−8 because it has a high porosity, a large
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Simple single reactor synthesis of nickel (II)-cobalt (II) ferrite composites with biochar and their photocatalytic properties Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-10-17 N P Shabelskaya, A V Arzumanova, Yu A Gaidukova, S I Sulima, E V Vasileva, E A Yakovenko
The paper proposes a simple one-stage synthesis of ferrite/biochar composites based on oxide compounds of NixCo1-xFe2O4 (х = 0, 0.5, and 1). The obtained materials were characterised using x-ray diffraction patterns, Fourier transform infrared (FTIR) spectrometry, electron microscopy, Scherrer and Williamson-Hall methods. The high photocatalytic activity of the synthesised materials in the process
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Recent developments in phycosynthesis of zinc oxide nanoparticles for biomedicine and environmental applications Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-10-12 Shrutika Chaudhary, Navneeta Bharadvaja
Nanoparticles are becoming integral components in every sector considering their unmatched properties with their counter bulk material. However, in the last couple of decades, several reports suggested metal nanoparticles are toxic to biological systems either directly or indirectly. Zinc oxide nanoparticles (ZnO NPs) possess excellent optical, electrical, food packaging properties, etc. Although,
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Green nanosilica and highly efficient removal of methylene blue Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-09-07 Pattaranun Thuadaij, Supan Yodyingyong
A new precipitation method has been developed for improving the production of nanosilica that is faster and more environmentally friendly. The study investigates the effects of different acid types and concentrations, as well as aging times, to determine the optimal conditions for preparing nanosilica from sugarcane bagasse ash (SCBA). Nanosilica synthesised with citric acid exhibits a higher specific
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Quercetin nanoformulations: recent advancements and therapeutic applications Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-09-07 Simrandeep Kaur, Ayushi Goyal, Arya Rai, Akshay Sharma, Kenneth Chinedu Ugoeze, Inderbir Singh
Quercetin is a natural bioflavonoid and is an inevitable part of a person’s daily diet. It exhibits anti-inflammatory, anti-oxidant, anti-cancer, anti-microbial effects and is used for the treatment of several diseases like cancer, cardiovascular ailments, and microbial infections. The major limitations of quercetin are low water solubility, less chemical stability, low bioavailability, and short biological
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Green synthesis of titanium dioxide nanoparticles using Thymus vulgaris leaf extract for biological applications Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-09-04 Mangala K J
In the last few decades, the biosynthesis of nanoparticles using biological agents such as microorganisms or plant extracts has gained a lot of attention due to the growing need for generating safe and non-toxic substances, cost-effective techniques, ecologically friendly solvents, and renewable materials. The aqueous leaf extract of Thymus vulgaris was used in the current investigation to achieve
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A LED visible-light-driven photocatalytic decontamination of azo dyes using Ag/ZnO heterojunction Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-09-04 Nhu Thi Thu Vo, Viet Van Pham
An emerging study is an Ag/ZnO heterojunction photocatalyst for the decomposition prospect of azo dyes in wastewater under visible light. Herein, spherical nanoparticles of the Ag/ZnO of 20–50 nm are synthesised via a green chemical method from a rosin agent. Combining Ag nanoparticles (NPs) and ZnO NPs extended the photoactivity range via a surface plasmon resonance (SPR) of Ag NPs at a wavelength
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Bio-engineered, phyto-decorated, multi-form P. betle/ZnO as a potential photocatalytic agent Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-09-01 Jyoti Gaur, Sanjeev Kumar, Mohinder Pal, Harpreet Kaur, Supreet4, Rahul Badru, Johnson Momoh, Rishi Pal, Sunil Kumar
The rising levels of water contamination worldwide signal a significant need for new materials for its restoration in the coming years. This study provides a novel, simple, cost-effective, and environmentally friendly approach for the production of zinc oxide (ZnO) nanoparticles (NPs) as a promising photocatalyst through the reduction of zinc nitrate hexahydrate using a leaf extract of Piper betle
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Electrochemical and optical-based systems for SARS-COV-2 and various pathogens assessment Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-08-17 Shahzad Ahmed, Arshiya Ansari, Moin Ali Siddiqui, Mohd Imran, Beauty Kumari, Afzal Khan, Pranay Ranjan
A critical step in the process for preventing and identifying emergencies relating to health, safety, and welfare is the testing and quick diagnosis of microbial pathogens. Due to the fast spread of waterborne and food borne infections in society and the high costs associated with them, pathogen identification has emerged as one of the most difficult parts of the water and food sectors. Since the turn
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Sintering β-SiC nanopowder using novel microwave-current assisted sintering technique: preliminary study Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-08-10 H K M Al-Jothery, T M B Albarody, N M Sultan, H G Mohammed, P S M Megat-Yusoff, N Almuramady, W J A AL-Nidawi
Silicon carbide is a crucial structure material because of its wide applications in different fields, such as electronics. The impurities have negative impact on the homogenous sinterability of nano SiC during the sintering process, especially the silicon dioxide. So, the consolidation of SiC nanopowders was conducted by the microwave-current assisted sintering process. Field emission scanning electron
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A bimetallic PdPt catalyst on CeZrO2/H-ZSM-5 dual support with exceptional activity in low temperature methane oxidation Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-08-09 Nguyen Tang Son, Tu Le Manh, Nguyen Van Hoang, Pham Thi Lanh, Do Dang Trung, Nguyen Van Hieu
Various techniques were employed to prepare a dual support system of CeZrO2 and H-ZSM-5 (80) including physically mixing, co-precipitation and sonochemical methods, which were followed by the deposition of bimetallic Pd and Pt via wet impregnation to obtain the final catalysts. The catalysts were tested in the total methane oxidation between 200 and 500 °C and the most active is the material derived
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Charge transport properties of interstitially doped graphene: a first-principles study Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-08-08 Dwi Nugraheni Rositawati, Moh. Adhib Ulil Absor, Kuwat Triyana, Iman Santoso
The role of interstitial atomic doping on transport properties of graphene was systematically studied using first-principles density functional theory (DFT). The study revealed that interstitial Au doping results in a p-type transfer of holes to graphene as the dopant concentration increases to 25%, with the Dirac point shifting to the Fermi level and localised states of atomic dopants appearing at
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Studying the structural and optical properties of Er3+ doped TiO2 powders synthesized by the sol-gel process Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-08-08 T T Giang Le, Kim Chi Tran, T M Dung Cao, T P Thanh Nguyen, Tran T T Van
A series of TiO2:xEr powders (with x from 0% to 1% at.) was synthesised by a simple sol–gel process. The structural and optical properties were studied in detail using diffusion reflection spectroscopy, x-ray diffraction, Raman spectroscopy, high-resolution transmission electron microscopy, and energy-dispersive x-ray spectroscopy, to systematically determine the band edge, morphology, and structural
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Effect of pH of Ganoderma lucidum aqueous extract on green synthesis of silver nanoparticles Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-08-07 Oleksandr Smirnov, Volodymyr Dzhagan, Oleg Yeshchenko, Mariia Kovalenko, Olga Kapush, Mykola Vuichyk, Veronika Dzhagan, Nazar Mazur, Vitalii Kalynovskyi, Mykola Skoryk, Volodymyr Yukhymchuk
Perspective applications of Ag nanoparticles (NPs) stimulate intense research on their affordable synthesis, including green routes. The use of fungi extracts has advantages over other organisms, because of their relatively easy isolation and higher efficiency in a reduction of metal ions and NP formation. Here we report mycosynthesis of AgNPs based on Ganoderma lucidum fruit body extract with different
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Analyzing the role of Ni dopant to change the structural, optical and photocatalytic properties of SnO2 nanoparticles Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-08-07 Lipan Pradhan, Shantinarayan Rout, Bipin Kumar Parida, S R Mohapatra, R Sakthivel, Debadhyan Behera
SnO2 and 5 wt% Ni doped SnO2 nanoparticles (SnO2:Ni NPs) were successfully synthesised by a template-free hydrothermal method. X-ray diffraction (XRD) patterns depicted polycrystalline nature of the NPs in rutile-type cassiterite phase with dominant (110) and (101) Bragg diffraction peaks. Rietveld refinement of XRD patterns supported single phase tetragonal crystal structure having space group P42/m
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Preparation of nanoporous SiO2/C derived from rice husk as anode material in SiO2/C||LiFePO4 full-cell through alkaline activation treatment Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-08-01 Thanh Liem Pham, Huu Phuoc Le, My Loan Phung Le, Tan Phat Vu, Van Man Tran
Silicon-based materials such as pure silicon (Si), silicon monoxide (SiO), silica (SiO2), are considered promising anode for future high power energy Li-ion batteries. Among them, SiO2 has garnered attention owing to its outstanding features such as high theoretical capacity (1961 mAh g−1), abundant reserve, and low-cost processing. However, the large expansion and shrinkage of the Si and SiO2 volume
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Enhancing photocatalytic performance: a study of anionic (congo red, orange-g) and cationic (malachite green) dye degradation using WSe2 and WSe2/ZnIn2S4 nanocomposite Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-07-28 Mool Chand, Arun Singh Rawat, Manika Khanuja, Seema Rawat
In the work, we developed a novel visible-light-driven photocatalyst WSe2/ZnIn2S4 (ZIS) nanocomposite and performed a comparative dye degradation study on cationic (Malachite green, MG) and anionic (Congo red, CR and Orange-g, OG) dyes. WSe2/ZIS nanocomposite was synthesised by the benign chemical aqueous solution method, under low temperature and pressure. The crystal structure and surface morphology
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Preparation and characterization of PMMA/ZnO nanocomposites for antistatic and biomedical applications Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-07-25 M A Saied, K N Abdel Nour
Polymethyl methacrylate (PMMA)/Palm oil/ZnO nanocomposite films of concentrations 0, 0.5, 1, 2, 5, 10, and 15 wt% were prepared by solution casting technique. Tween 80 was used as a surfactant. The prepared films were characterised by different techniques in addition to antimicrobial and cytotoxicity tests. The scanning electron microscope (SEM) micrographs of fractured surfaces of the films showed
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Stability of soluble honokiol loaded PLGA-PEG nanoparticles under normal and accelerated-aging conditions Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-07-13 Nguyet Ho Minh, Cuong Vu Manh, Anh Le Thi Van, Duong Le Thi Thuy
Honokiol, a plant bioactive compound, is derived from the Magnolia genus and has several pharmacological advantages including anti-inflammatory, antiviral, neuromodulatory and anti-tumour activities. However, honokiol’s pharmaceutical utility is constrained by its poor solubility in water. Nanotechnology has been widely used to address this issue to make anticancer medications more effective by increasing
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Synthesis and characterization of Ti0.9Ir0.1O2-activated carbon composite as a promising support for catalysts in electrochemical energy conversion Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-07-13 Hien T Q Pham, Hau Quoc Pham, Quyen Huynh, Thao Ngoc Nguyen, Ngoc-Han T Huynh, Thanh-Quang Nguyen, Tai Thien Huynh
Constructing robust support plays a key role in governing the overall catalytic efficiency of metal-based catalysts for electrochemical reactions in sustainable energy-related conversion systems. We herein use a solvothermal method to assemble Ti0.9Ir0.1O2-Activated C composites, exhibiting high surface area and electrical conductivity compared to the pure TiO2 material. The material characterisations
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Magnetocaloric properties of shape-dependent nanostructured Gd2O3 oxide particles Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-07-12 Dipesh Neupane, Jacob Casey, Jolaikha Sultana, Arjun K Pathak, Sunil Karna, Shawn Pollard, Sanjay R Mishra
Single-phase Gd2O3 nanostructures with different morphologies, such as nanoparticles, nanorods, nanospheres, and nanoplates, were synthesised. Gd2O3 1D nanorods and 2D nanoplate architectures were prepared via the hydrothermal method, while 3D hollow nanospheres were synthesised via homogeneous precipitation. The magnetic and magnetocaloric properties of Gd2O3 nanostructured particles were studied
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Structural, spectroscopic and morphology studies on green synthesized ZnO nanoparticles Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-06-16 Toton Sarkar, Sani Kundu, Gurupada Ghorai, Pratap Kumar Sahoo, Ashis Bhattacharjee
Zinc oxide nanoparticles (ZnO NPs) were synthesised using Tabernaemontana divaricata flower extract (TFE) in different weight percentages by facile, eco-friendly and cost-effective green synthesis method. Formation and structure of the ZnO NPs were studied by powder XRD, FT−IR, Raman and TEM studies. The crystals formed are of hexagonal wurtzite structure with biological functional groups attached
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Structural and critical properties of Pr0.5Sr0.5MnO3 nanoparticle Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-06-07 Nguyen Thi Viet Chinh, Dinh Chi Linh, Nguyen Thi Dung, Tran Dang Thanh
In this work, a sample of Pr0.5Sr0.5MnO3 nanoparticles with an average crystalline size of = 58 ± 2 nm was prepared by a combination of reactive milling method for 6 h at room temperature and heat treatment at the 1100 °C for 0.5 h. The x-ray diffraction analysis revealed the existence of a Pr0.5Sr0.5MnO3 single phase with the tetragonal structure (I4/mcm space group). Temperature and magnetic field
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Porous pentagraphene nanotube halogen gas sensor: a first principles study Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-06-06 Khurshed A Shah, M Shunaid Parvaiz, G N Dar
The recent technological revolution in nanoscience has created a huge potential to build highly sensitive, low-cost and power efficient portable sensors. Here, we have investigated the novel nano-porous penta-graphene nanotube (PGNT) device for detection and separation of halogen gases like fluorine (F2), chlorine (Cl2), bromine (Br2) and iodine (I2). The host carbon atoms are selectively removed to
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Improved stability and luminescent efficiency of AgInSe2 nanocrystals by shelling with ZnS Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-06-06 Tran Thi Thu Huong, Nguyen Thi Hiep, Nguyen Thu Loan, Le Van Long, HyukSu Han, Nguyen Thi Thao, Ung Thi Dieu Thuy, Nguyen Quang Liem
In this paper, AgInSe2 (AISe) core and AgInSe2/ZnS (AISe/ZnS) core/shell nanocrystals (NCs) were synthesised by a one-pot method in an organic solvent. Firstly, the synthesis of AIS core NCs with different sizes was performed by hot-injection of Se precursor into the Ag and In complexes at different temperatures from 100 °C to 180 °C for a reaction time of 20 min Then, the ZnS was grown on the surface
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Study of the characterizationn of CdTe thin films prepared by the pulsed laser deposition technique with different laser energies Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-05-31 Noora Sabah Kamel, Kadhim A. Aadim, A. Kadhim
This research studied the effects of different laser energies on structural and optical properties. We prepared CdTe thin films by PLD technique using an Nd:YAG laser with a wavelength of 1064 nm and different energies (400, 500, 600, and 700 mJ). The practical experiments were carried out at a temperature of 200 °C. XRD results revealed that all the prepared thin films have polycrystalline structures
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Free radical scavenging effects of grapefruit essential oil nanoemulsion stabilized with carrageenan and its cytotoxicity assay on HeLa cell line Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-05-31 Waralee Watcharin, Suman Gupta, Amonrada Saning, Sireerat Laodheerasiri, Laemthong Chuenchom
Grapefruit peel essential oil exhibited antioxidant and antibacterial activities attributed to their phenolic and flavonoid compounds. In this study, nanoemulsion of grapefruit peel essential oil and carrageenan was investigated for their antioxidant properties. The oil in water (o/w) emulsion was formulated with 0.5% and 1.0% (w/v) grapefruit peel essential oil and carrageenan. Carrageenan was utilised
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Antibacterial activity of silver nanoparticles created by one step nanosecond Nd: YAG laser ablation in water Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-05-30 Susan Hasan, Khawla S Khashan, Aseel A Hadi
The pulsed laser ablation in liquid (PLAL) technique was used to successfully synthesise silver nanoparticles (Ag NPs). With the goal of controlling their size, a laser wavelength of 1064 nm was focused on the Ag bulk target immersed in distilled water in a glass vessel with different laser fluences. The effect of laser fluence, and thus Ag NPs concentration on the bacterial pathogenic was investigated
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Development of low-cost electrospun carbon nanofibers using asphaltene precursor Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-05-30 Atif Hussain, Addie Bahi, Frank Ko, Yasmine Abdin
This study reports for the first time the development of low-cost nano-scale carbon fibers from petroleum asphaltene precursors using the simple and cost-effective electrospinning technique. Firstly, the green nanofiber nonwoven mats were electrospun without any prior treatment of the asphaltene feedstock. The nanomats were then heat treated at different temperatures to optimise their thermostabilisation
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Impact of S,B and S,P co-doping on the photovoltaic performance of graphene quantum dots Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-05-26 Peng Cui, Jian Zhang
Co-doping is an effective strategy to optimise the photovoltaic performance of GQDs. However, due to the heterogeneity of GQDs, it is difficult to achieve controllable photovoltaic performance without determining the structure-property relationship. In this work, we perform first-principles calculations to investigate the optoelectronic properties of GQDs doped with S, B, and P atoms. Our results show
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Effect of Ar-plasma treatment and annealing on thermally evaporated β-In2S3 thin films Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-05-25 S Rasool, K Saritha, K T Ramakrishna Reddy, M S Tivanov, O V Korolik, V F Gremenok, S P Zimin, I I Amirov
In the present study, the effect of annealing and Ar-plasma treatment on structural, morphological and optical properties of thermally evaporated β-In2S3 thin films has been investigated. During Ar-plasma treatment, some interesting results were observed that an array of metallic indium nanostructures was formed over In2S3 film surface with quasi-spherical or spread droplet shapes of an average size
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Polyurethane/halloysite nano tubes/sericin based electrospun nanocomposite for sustained drug release Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-05-19 Mangala Joshi, Sukumar Roy, Ayeshvaryaa TV
In this study, the feasibility of the production of electrospun nanofibre composite mainly for biomedical applications is reported. Biocompatible polyether-based polyurethane, natural proteinaceous polymer silk sericin (SS) and natural inorganic nanoclay halloysite as a drug carrier with a model drug chlorhexidine acetate were used to produce nanofibres by electrospinning technique. Sericin was extracted
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Upgrading gold to green nanoparticles: applications in prostate cancer Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-05-18 Nadim Mitri, Kamil Rahme, Giulio Fracasso, Esther Ghanem
Green nanotechnology produces biocompatible gold nanoparticles (AuNPs) with intrinsic anti-microbial, anti-viral, and anti-tumour properties. Green AuNPs (g-AuNPs) are gaining a solid ground in prostate cancer (PC) nanotherapy. Hence, in this review, we summarise and compare data from studies published between 2015 and 2022 to highlight major biological compounds and outputs from in vitro and in vivo
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Antibacterial activity of green synthesized ZnO nano-flower using pineapple peel extract Adv. Nat. Sci. Nanosci. Nanotechnol. Pub Date : 2023-05-17 A S Rini, T M Linda, Y Hamzah, L Umar, M Sari, Y Rati
Plant-based nanoparticles provide significant advantages over conventional physico-chemical techniques in medicine and biology. This paper reports the green route to synthesise ZnO particles using pineapple peel extract at various zinc precursor concentrations and evaluate their antibacterial activity. Morphological, structural, and optical properties of ZnO were characterised using SEM, XRD, FTIR