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Characterization and evaluation of multiple biological activities of phytosynthesized gold nanoparticles using aqueous extract of Euphorbia dendroides Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-11-30 Heba Ibrahim Abd El-Moaty, Eman H. Ismail, Rasha Abu-Khudir, Nadia A. Soliman, Dina Y. Sabry, Najla K. Al Abdulsalam, Wafaa A. Sorour, Mostafa M.H. Khalil
Novel metallic nanoparticles (NPs), such as biosynthesized gold nanoparticles (AuNPs), have been extensively studied because of their wide applications. Consequently, the present investigation aime...
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Catalyst characterization Ni-Sn nanoparticles supported in Al2O3 and MgO: Acetophenone hydrogenation Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-11-04 Yasna León-Gutiérrez, Galo Cárdenas-Triviño
Monometallic and bimetallic Ni and Sn catalysts were prepared in different ratios by the Solvated Metal Atom Dispersed (SMAD) method for the catalytic hydrogenation of acetophenone to 1-phenylethan...
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Performance improvement of microbial fuel cells through assembling anodes modified with nanoscale materials Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-11-02 Huanhuan Liang, Jiali Han, Xingai Yang, Zhixing Qiao, Tao Yin
In microbial fuel cell (MFC), the anode is the carrier of microbial attachment and growth, and its material and surface structure play a vital role in MFC electricity generation. Therefore, anode s...
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Enhancing the optical performance of organic light-emitting diodes using nanoscale random rubbed structure Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-10-25 Cheol Shin, Seungwon Lee, Kwang Wook Choi, Young Hyun Hwang, Young Wook Park, Byeong-Kwon Ju
In this study, we evaluated a nanoscale random rubbed structure (nRRS) used as a scattering layer in organic light-emitting diodes (OLEDs) through an innovative manufacturing method. The rubbing te...
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Formation of oxide crystallites on the porous GaAs surface by electrochemical deposition Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-09-29 Yana Suchikova, Sergii Kovachov, Ihor Bohdanov
We demonstrate how the formation of octahedral microcrystals of arsenic oxide As2O3 in the form of arsenolite with a size of 200 nm to 10 μm can be initiated by the electrochemical etching method w...
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Catalytic reduction of 4-nitrophenol and methylene blue by biogenic gold nanoparticles synthesized using Carpobrotus edulis fruit (sour fig) extract Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-08-11 Abram M Madiehe, Koena L Moabelo, Keletso Modise, Nicole RS Sibuyi, Samantha Meyer, Admire Dube, Martin O Onani, Mervin Meyer
Along with the increasing requirement for efficient organic conversions using green chemistry, there is a need to develop highly efficient and eco-friendly catalytic reaction systems. Gold nanopart...
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NanoMITe Annual Symposium & Nanotechnology Malaysia Annual Symposium 2019 Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-07-15 Azrul A Hamzah, Jumril Yunas
This Special Collection on Nanomaterials and Nanotechnology is devoted to the collection of articles from several different research fields and applications of nanotechnology which have been presented at the NanoMITe Annual Symposium and Nanotechnology Malaysia Annual Symposium (NanoSym2019) in Putrajaya during 21st-22nd August 2019. This Special Issue includes a selection of contributions among the
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The influence of strain range, size and chiral on mechanical properties of graphene: Molecular dynamics insights Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-07-05 Yi-Xiu Du, Li-Jun Zhou, Jian-Gang Guo
The stress-strain response of pristine monolayer graphene under uniaxial loading/unloading over a more extensive size range (100 nm×100 nm) is studied by molecular dynamics simulations, which prove...
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Development of graphitic carbon nitride supported novel nanocomposites for green and efficient oxidative desulfurization of fuel oil Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-06-05 Ghulam Jabar, Muhammad Saeed, Sadaf Khoso, Anham Zafar, Javed Iqbal Saggu, Amir Waseem
The catalysts utilized for oxidative desulfurization have acquired significant attention and ability to improve the quality of the fuel oil by removing sulfur. In this work, the catalysts used for ...
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First principles study of photogalvanic effect of monolayer SnS Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-05-20 Deyang Yu, YangYang Hu, Ruiqi Ku, Guiling Zhang, Weiqi Li, Yongyuan Jiang
The photogalvanic effect of monolayer SnS was investigated at a small bias voltage under perpendicular irradiation using density functional theory combined with the non-equilibrium Green’s function...
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The enhanced activity of dinuclear metallophthalocyanines amino-functionalized carbon nanotube-based oxygen reduction reaction catalysts Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-04-29 Gai Zhang, Yufan Zhang, Amin Tan, Hongwei Zhou, Weifeng Zhao, Weixing Chen
Dinuclear metallophthalocyanines Fe2Pc2(CP)4 containing carboxyl substitutes were wrapped with amino-functionalized carbon nanotubes (MWCNTs-NH2) to enhance electrocatalytic activity for oxygen red...
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Carbon nanotubes, nanorings, and nanospheres: Synthesis and fabrication via chemical vapor deposition—a review Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-04-24 V Sivamaran, V Balasubramanian, M Gopalakrishnan, V Viswabaskaran, A Gourav Rao, ST Selvamani
Research work published since 2010 on the synthesis of carbon nanotubes (CNTs), carbon nanorings (CNRs), and carbon nanospheres (CNSs) using the chemical vapor deposition (CVD) process is reviewed....
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Facile synthesis of novel SrO 0.5:MnO 0.5 bimetallic oxide nanostructure as a high-performance electrode material for supercapacitors Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-04-22 Vinayak Adimule, Vinay S Bhat, Basappa C Yallur, Adarsha HJ Gowda, Paola De Padova, Gurumurthy Hegde, Arafat Toghan
Perovskite bimetallic oxides as electrode material blends can be an appropriate method to enhance the supercapacitor properties. In the present research, SrO 0.5:MnO 0.5 nanostructures (NS) were sy...
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Concave gold nanoparticles on aluminum as surface enhanced Raman spectroscopy substrate for detection of thiram Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-04-05 Monica M Martinez-Garcia, Juan L Pichardo-Molina, Norberto Arzate-Plata, Juan J Alvarado-Gil
We report a simple preparation of surface enhanced Raman spectroscopy (SERS) substrates with gold concave nanocubes of different sizes, deposited onto aluminum slides. The SERS substrates were char...
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Emerging polymer-based nanocomposites Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-04-03 Francesca Lionetto, Carlos Espinoza-González
Polymer-based nanocomposites have received considerable interest in research for the last three decades. Besides improving the properties of parent polymer, the addition of low content of organic or inorganic nanofillers provides new properties to the nanocomposite material while maintaining almost the same processing properties as the starting polymers. Furthermore, the high surface/volume ratio of
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Immunosensing the rheumatoid arthritis biomarker through bifunctional aldehyde-amine linkers on an iron oxide nanoparticle seeded voltammetry sensor Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-03-31 Bowei Zhou, Yonglong Yan, JingBo Xie, Hongbo Huang, Heyun Wang, Subash CB Gopinath, Periasamy Anbu, Sanshan He, Lijun Zhang
An immunosensor was developed on an interdigitated electrode (IDE) by voltammetry sensing for the early identification of the autoimmune disease ‘rheumatoid arthritis (RA)’ by detecting the biomarker anti-cyclic citrullinated peptide antibody (anti-CCP). Higher immobilization of cyclic citrullinated peptide (CCP) as a probe was achieved by using green synthesized iron oxide nanoparticles (IONPs). Field-emission
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Optically controlled dual-band quantum dot infrared photodetector Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-03-31 Stefano Vichi, Sergio Bietti, Francesco Basso Basset, Artur Tuktamyshev, Alexey Fedorov, Stefano Sanguinetti
We present the design for a novel type of dual-band photodetector in the thermal infrared spectral range, the Optically Controlled Dual-band quantum dot Infrared Photodetector (OCDIP). This concept is based on a quantum dot ensemble with a unimodal size distribution, whose absorption spectrum can be controlled by optically injected carriers. An external pumping laser varies the electron density in
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Nanomaterials effects on induced magnetic field and double-diffusivity convection on peristaltic transport of Prandtl nanofluids in inclined asymmetric channel Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-03-12 Safia Akram, Maria Athar, Khalid Saeed, Mir Yasir Umair
The effects of induced magnetic field, thermal and concentration convection on the peristaltic flow of Prandtl nanofluids are explored in this study in an inclined asymmetric channel. A detailed mathematical explanation is given for Prandtl nanofluids with double-diffusivity convection and induced magnetic field. To simplify non-linear partial differential equations, the long wavelength and low approximation
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The role of CNT in surface defect passivation and UV emission intensification of ZnO nanoparticles Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-02-17 Keshav Nagpal, Laetitia Rapenne, David S Wragg, Erwan Rauwel, Protima Rauwel
We report on the controlled enhancement of the UV emission from ZnO nanoparticles synthesized via hydrothermal sol-gel routes. Various characterization techniques were used in this study to determine the crystal structure, defect formation, morphology and size of the ZnO nanoparticles. Firstly, the crystallinity of the ZnO nanoparticles was assessed by X-ray diffraction. The role of the precursor quantities
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New insights into hydrophobicity at nanostructured surfaces: Experiments and computational models Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-02-14 Jan Macko, Natalia Podrojková, Renata Oriňaková, Andrej Oriňak
This review deals with different aspects of hydrophobicity at nanostructured surfaces. Theoretical and geometric effects as well as those of surface feature geometry on hydrophobicity are explored in this article. This review includes surface modification methods used to change surface hydrophobicity and effect on adhesion of cells as nano substrate. A small chapter is devoted to hydrophobicity at
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Antimicrobial, antioxidant, and angiogenic bioactive silver nanoparticles produced using Murraya paniculata (L.) jack leaves Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2022-02-02 Purushothaman Rama, Alberto Baldelli, Anandhan Vignesh, Ammar B Altemimi, Govindan Lakshmanan, Rajendran Selvam, Narasingam Arunagirinathan, Kandasamy Murugesan, Anubhav Pratap-Singh
Murraya paniculata (MP) can be used as a reducing agent to produce silver nanoparticles (AgNPs) using a simple procedure. AgNPs are characterized in morphological and chemical properties, antioxidant activity, and cytotoxicity. The morphology of AgNPs derived from MP shows a face-centered cubic structure, spherical shape with an average particle size of 23 nm. The chemical structure shows characteristic
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Synthesis of hollow and spherical cadmium sulphide nanoparticles by an unconventional design of bioelectrochemical system Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-12-19 Cuong Tu Ho, Thuong Thuong Lam, Hanh Thi Nguyen, Canh Xuan Nguyen, Quang Le Dang, Ji-hoon Lee, Youri Yang, Hor-Gil Hur
The synthesis of CdS nanoparticles was developed based on the unconventional design of bioelectrochemical system (BES) inoculated with Shewanella sp. HN-41. The BES configuration included two bottle chambers separated by silicon membrane but directly connected by a graphite electrode perforating through silicon membrane, namely, non-external circuit bioelectrochemical system (nec_BES). Shewanella sp
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Irreversibility analysis in dissipative magnetohydromagnetic flow of non-Newtonian nanomaterials Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-12-19 Tasawar Hayata, Zobia Kainata, Sohail A Khana, Ahmed Alsaedi
The theme of this article is to scrutinize the entropy rate in hydromagnetic flow of Reiner–Philippoff nanofluid by a stretching surface. Energy equation is developed through first law of thermodynamic with dissipation and Joule heating. Furthermore, random and thermophoretic motion is discussed. Additionally, binary reaction is discussed. Physical feature of irreversibility analysis is discussed.
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Acid Orange-7 uptake on spherical-shaped nanocarbons Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-12-17 Bhavya Krishnappa, Jyothi Mannekote Shivanna, Maya Naik, Paola De Padova, Gurumurthy Hegde
Acid-dyes, typically used in textile productions, could infer poisoning harmful effects on the environment as well as on human health, if not properly treated during their disposal. Henceforth, there is an absolute necessity to achieve new efficient low-cost techniques to remove these dyes from industrial chemical waste. Here, the leaves of oil palm, which are abundant in tropical countries, were used
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Trapping and rotation of microparticles using a metasurface exciting by linearly polarized beam Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-11-16 Yi Yang, Siyuan Huang
We numerically demonstrate trapping and rotation of particles using a metasurface formed by arranging nanocavities as a right-handed Archimedes’ spiral. Excited by a 90° linearly polarized beam, a focused surface plasmon polariton (SPP) field is formed at the center of the spiral, and the particle can be trapped by the field. While excited by −45° linearly polarized beams, a vortex SPP field carrying
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Removal of methylene blue from wastewater using hydrogel nanocomposites: A review Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-10-24 Nompumelelo Malatji, Edwin Makhado, Kwena D Modibane, Kabelo E Ramohlola, Thabiso C Maponya, Gobeng R Monama, Mpitloane J Hato
Water pollution by organic dyes continues to pose a serious health and environmental threat to the ecosystem. Although adsorption using biopolymer-based hydrogels has proven to be an ideal technique for the treatment of these dye contaminants from aqueous solutions, these hydrogels suffer from lack of mechanical stability and recovery as compared to synthetic polymers. Herein, we review the low-cost
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A prototype of textile wastewater treatment using coagulation and adsorption by Fe/Cu nanoparticles: Techno-economic and scaling-up studies Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-09-25 Ahmed S Mahmoud, Mohamed K Mostafa, Robert W Peters
This study aims to investigate the efficiency of a pilot prototype system comprising coagulation/flocculation, filtration, and nano-bimetallic iron/copper (Fe/Cu) degradation and adsorption units for the removal of chemical oxygen demand (COD), biological oxygen demand (BOD), color, total nitrogen (TN), total phosphorus (TP), and TSS from real textile wastewater. The total removal efficiencies of the
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Nano-carbonated hydroxyapatite precipitation from abalone shell (Haliotis asinina) waste as the bioceramics candidate for bone tissue engineering Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-08-18 Hestining A Permatasari, Mona Sari, Aminatun, Tri Suciati, Kiagus Dahlan, Yusril Yusuf
In this study, nano-carbonated hydroxyapatite (n-CHAp) was successfully synthesized with abalone shells (Halioitis asinina) as the calcium source using precipitation methods with aging time variations, namely, 0 (without the aging process), 24, and 48 h. Based on an analysis of X-ray diffraction characterization, the spectrum of the n-CHAp is shown for all sample variations in aging time. The results
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Rotating cylinder and magnetic field on solid particles diffusion inside a porous cavity filled with a nanofluid Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-08-15 Abdelraheem M. Aly, Ehab Mahmoud Mohamed, Hakan F. Oztop, Noura Alsedais
This study deals with the roles of a magnetic field and circular rotation of a circular cylinder on the dissemination of solid phase within a nanofluid-filled square cavity. Two wavy layers of the non-Darcy porous media are situated on the vertical sides of a cavity. An incompressible smoothed particle hydrodynamics (ISPH) method was endorsed to carry out the blending process concerning solid phase
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Parameters and properties for the preparation of Cu nanocolloids containing polyvinyl alcohol using the electrical spark discharge method Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-08-09 Kuo-Hsiung Tseng, Han-Chiao Ke, Hsueh-Chien Ku
Through the use of an electric discharge machine, this study performed the electrical spark discharge method in deionised water under normal temperature and pressure for Cu nanocolloid (CuNC) preparation. The CuNCs had a zeta potential of 12.3 mV, indicating poor suspension stability. The suspension stability was effectively increased (zeta potential 32.5 mV) through the addition of polyvinyl alcohol
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Studies of electrical, thermal, and mechanical properties of single-walled carbon nanotube and polyaniline of nanoporous nanocomposites Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-06-08 Parvathalu Kalakonda, Pranay Bhasker Kalakonda, Sreenivas Banne
Hydrogel of single-walled carbon nanotubes and polyaniline has been used for thermopower engineering applications due to desirable thermal, electrical, and mechanical properties as well as tunable degradability. In this article, we fabricated nanoporous composite scaffolds from hydrogel of single-walled carbon nanotubes and polyaniline polymer using a standard in situ polymerization process. Our solution-based
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Nonenzymatic glucose detection using Au nanodots decorated Cu2O nanooctahedrons Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-05-25 Dexiang Chen, Kaifeng Xue, Huaiqiang Liu, Binbin Yao, Aixin Sun, Chenchen Liu, Pinhua Zhang, Guangliang Cui
Au nanodots decorated Cu2O nanooctahedrons were fabricated by a facile liquid-phase process combined with a galvanic replacement reaction for nonenzyme glucose detection. A simple rapid test strip based on the nanooctahedrons was proposed to evaluate the possibility of commercial application in nonenzymatic glucose detection. This test strip shows excellent response toward glucose. Linear response
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Exfoliated graphene-alkaline lignin-PEDOT: PSS composite as a transparent conductive electrode Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-05-20 Muhammad Ashraf Saiful Badri, Noor Far’ain Md Noor, Ahmad Rifqi Md Zain, Muhamad MatSalleh, Tengku Hasnan Tengku Abdul Aziz
In this work, we report a graphene-alkaline lignin-poly(3,4-ethylenedioxythiophene) polystyrene sulfonate composite as a transparent conductive electrode for indium tin oxide-free optoelectronic devices. The composite was prepared by dispersing exfoliated graphene-alkaline lignin into aqueous poly(3,4-ethylenedioxythiophene) polystyrene sulfonate. The effect of graphene concentration on the electrical
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Identification of Leptospira in water by Fe-Pd-doped polyaniline nanocomposite thin film Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-05-17 Huda Abdullah, Seri Mastura Mustaza, Siti Khairani Bejo, Iskandar Yahya, Noorfazila Kamal, Mohd Hafiz Dzarfan Othman
Leptospirosis disease was caused by rat urine which contains the genus Leptospira bacteria. In this study, the fabrication of Pd-Fe-doped polyaniline nanocomposite thin films for the determination of the genus Leptospira bacteria thin films has been investigated. Pd-Fe-doped polyaniline nanocomposite thin films were fabricated by sol–gel spin coating method. The electrode sensors were immersed in the
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Resistance-strain sensitive rubber composites filled by multiwalled carbon nanotubes for structuraldeformation monitoring Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-04-28 Xingyao Liu, Rongxin Guo, Zhiwei Lin, Yang Yang, Haiting Xia, Zheng Yao
In this article, multiwalled carbon nanotube/natural rubber composites with resistance-strain sensitivity were prepared by solution method, when the electrical percolation threshold of multiwalled carbon nanotube is only ∼3.5 wt%. The mechanical properties and resistance-strain response sensitivity were studied and analyzed systematically. The dispersion of multiwalled carbon nanotubes in the natural
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Feasibility study on microwave welding of thermoplastic using multiwalled carbon nanotubes as susceptor Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-03-31 Phey Yee Foong, Chun Hong Voon, Bee Ying Lim, Mohd Khairuddin Md Arshad, Subash CB Gopinath, Kai Loong Foo, Ruslinda A Rahim, Uda Hashim
Despite manufacturers’ goal of molding single component products from plastics, the structures of some of the products are far too complex to be molded as a single piece. Therefore, assembly of subcomponents into the final products is important for the manufacturing of many plastic-based products. To date, welding is the most efficient joining method for plastics. In this study, multiwalled carbon
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Vibrational analysis of nanoplate with surface irregularity via Kirchhoff plate theory Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-03-15 Mahmoud M Selim, Taher A Nofal
In this work, an attempt is done to apply the Kirchhoff plate theory to find out the vibrational analyses of a nanoplate incorporating surface irregularity effects. The effects of surface irregularity on natural frequency of vibration of nanomaterials, especially for nanoplates, have not been investigated before, and most of the previous research have been carried for regular nanoplates. Therefore
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Electrical resistivity of Sn–3.0Ag–0.5Cu solder joint with the incorporation of carbon nanotubes Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-02-25 Norliza Ismail, Azman Jalar, Atiqah Afdzaluddin, Maria Abu Bakar
The main objective of this study is to investigate the electrical properties of Sn–3.0Ag–0.5Cu solder joint with the incorporation of carbon nanotube instead of solder bulk. Sn–3.0Ag–0.5Cu solder paste with the incorporation of carbon nanotube up to 0.04 wt% was fabricated by using mechanical mixing method. Fabricated solder pastes were then soldered on printed circuit board via reflow soldering at
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Conversion of jet biofuel range hydrocarbons from palm oil over zeolite hybrid catalyst Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-02-10 Norsahika Mohd Basir, Norkhalizatul Akmal Mohd Jamil, Halimaton Hamdan
The catalytic conversion of palm oil was carried out over four zeolite catalysts—Y, ZSM-5, Y-ZSM-5 hybrid, and Y/ZSM-5 composite—to produce jet biofuel with high amount of alkanes and low amount of aromatic hydrocarbons. The zeolite Y-ZSM-5 hybrid catalyst was synthesized using crystalline zeolite Y as the seed for the growth of zeolite ZSM-5. Synthesized zeolite catalysts were characterized by X-ray
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Effects of post-annealing on MoS2 thin films synthesized by multi-step chemical vapor deposition Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-02-10 Muhammad Hilmi Johari, Mohamad Shukri Sirat, Mohd Ambri Mohamed, Yutaka Wakayama, Abdul Rahman Mohmad
Multi-step chemical vapor deposition (CVD) is a synthesis method which is capable of producing a uniform, large area, and high-quality thin films. In this work, we report the effect of post-annealing on the structural and optical properties of few-layers (FL) MoS2 thin films synthesized by multi-step CVD. Based on atomic force microscopic image, the thickness of the MoS2 thin film is ∼3 nm, which is
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Annealing temperature dependency of structural, optical and electrical characteristics of manganese-doped nickel oxide nanosheet array films for humidity sensing applications Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-02-04 N Parimon, MH Mamat, IB Shameem Banu, N Vasimalai, MK Ahmad, AB Suriani, A Mohamed, M Rusop
Manganese-doped nickel oxide nanosheet array films are successfully prepared on a nickel oxide seed-coated glass substrate by an immersion method. Various annealing temperatures between 300°C and 500°C are applied to the manganese-doped nickel oxide nanosheet array films to study their effect on the properties of nickel oxide, including humidity sensing performance. Field emission scanning electron
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On the performance of polymer-inorganic perovskite oxide composite light-emitting diodes: The effect of perovskite SrTiO3 additives Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-01-29 Ummi Kalsom Noor Din, Muhamad Mat Salleh, Tengku Hasnan Tengku Aziz, Ahmad Rifqi Md Zain, Mohd. Ambri Mohamed, Akrajas Ali Umar
This study reports the performances of a single structured light-emitting diode (LED) devices based on polymer material poly(9,9-di-n-hexylfluorenyl-2,7-diyl) (PHF) mixed with various concentrations of perovskite oxide strontium titanate (SrTiO3) particles deposited as a composite PHF: SrTiO3 emitting layer. The performances of the single structured organic LED indium tin oxide (ITO)/PHF/aluminum (Al)
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Gold-nanourchin complexed silicon dioxide-probe on gap-fingered interdigitated electrode surface for Parkinson’s Disease determination by current–volt measurement Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2021-01-18 Xiaohong Li, Wei Shi, Wenyan Zhang, Weiyao Chen, Dan Cao, Subash CB Gopinath, Periasamy Anbu, Na Liu
Parkinson’s disease (PD) is a nervous disorder, affects physical movement, and leads to difficulty in balancing, walking, and coordination. A novel sensor is mandatory to determine PD and monitor the progress of the treatment. Neurofilament light chain (NfL) has been recognized as a good biomarker for PD and also helps to distinguish between PD and atypical PD syndromes. Immunosensor was generated
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Synthesis and characterization of Fe, Co, and Ni colloids in 2-mercaptoethanol Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Galo Cárdenas-Triviño, Sergio Triviño-Matus
Metal colloids in 2-mercaptoethanol using nanoparticles (NPs) of iron (Fe), cobalt (Co), and nickel (Ni) were prepared by chemical liquid deposition method. Transmission electron microscopy, electron diffraction, UV-VIS spectroscopy, and scanning electron microscopy with electron dispersive X-ray spectroscopy characterized the resulting colloidal dispersions. The NPs exhibited sizes with ranges from
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Multi-response optimization of chromium/gold-based nanofilm Kretschmann-based surface plasmon resonance glucose sensor using finite-difference time-domain and Taguchi method Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Najmiah Radiah Mohamad, Mohd Farhanulhakim Mohd Razip Wee, Mohd Ambri Mohamed, Azrul Azlan Hamzah, P Susthitha Menon
Kretschmann-based surface plasmon resonance sensor utilizing chromium and gold nanofilms is ideal for label-free biomedical sensing. In this work, Taguchi’s L9 orthogonal array method was used to optimize the effects of three control factors and noise factor, which are the incident optical wavelength, chromium and gold nanofilm thicknesses, and their root-mean-square surface roughness, on the performance
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Formation of anisotropic gold nanoparticles on indium tin oxide substrates as a plasmonic sensing material Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Nur Liyana Razali, Marlia Morsin, Suratun Nafisah, Nur Zehan An’nisa Md Shah, Farhanahani Mahmud, Soon Chin Fhong, Tengku Hasnan Tengku Abdul Aziz
A simple technique of seed-mediated growth has been successfully performed to grow anisotropy gold nanoparticles on solid substrates. The growth of the gold nanoparticles has been carried out in the presence of a binary surfactant mixture of hexadecyltrimethylammonium bromide with two different molecular weights of a capping agent, namely polyvinylpyrrolidone: 40,000 and 55,000. In this study, the
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Design of 2D GaN photonic crystal based on hole displacement for L3 cavity Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Nur Dalila Mohd Zamani, Mohd Nuriman Nawi, Dilla Duryha Berhanuddin, Burhanuddin Yeop Majlis, Ahmad Rifqi Md Zain
In this article, we report modeling, simulation, and analysis of shifting 2D photonic crystal cavity side holes in GaN-AlN-sapphire layered structure. The design was simulated with Lumerical finite-difference time-domain. A lattice constant a, 157 nm, and a hole diameter d, 106 nm, were used in the design. The cavities are based on L3, which we demonstrated by simply shifting two holes away from a
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Synthesis of gold nanoparticles using Platycodon grandiflorum extract and its antipathogenic activity under optimal conditions Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Periasamy Anbu, Subash CB Gopinath, S Jayanthi
Gold nanoparticles have many applications in the biomedical field, mainly for drug delivery, cancer therapy, and detection of pathogenic microorganisms. In this study, gold nanoparticles synthesized using Platycodon grandiflorum (Balloon flower plant) extracts were evaluated for their antibacterial potential. Gold nanoparticles were synthesized at 20–50°C using different volumes of the leaf extract
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Incorporation of zinc oxide nanoparticles in cotton textiles for ultraviolet light protection and antibacterial activities Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Abebe Belay, Melaku Mekuria, Getachew Adam
The textile materials functionalized with nanostructures have proven to be useful for many applications, such as antimicrobial, ultraviolet (UV) light protection, and self-cleaning substrates. The objective of this research is to synthesize and characterize zinc oxide (ZnO) nanoparticles (NPs) for the applications of UV absorbers and antibacterial activities. ZnO NPs were synthesized at different temperatures
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Anionic effect on nanostructure and morphology of bio-schwertmannite dynamically produced within cellular reproduction Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Huixin Xiong, Xiancai Lu, Rucheng Wang
Schwertmannite has been considered as the host mineral and potentially excellent adsorbent of contaminates from waters, and it has various morphologies of spheroid with pincushions, whiskers, hedge-hogs, and needles. In this work, using the (high-resolution transmission and field-emission scanning) electron microscopes, we studied nanostructure, morphological evolution, and difference in chemical composition
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Prediction of the structural and electronic properties of MoxTi1−xS2 monolayers via first principle simulations Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Ankit Kumar Verma, Federico Raffone, Giancarlo Cicero
Two-dimensional transition metal dichalcogenides have gained great attention because of their peculiar physical properties that make them interesting for a wide range of applications. Lately, alloying between different transition metal dichalcogenides has been proposed as an approach to control two-dimensional phase stability and to obtain compounds with tailored characteristics. In this theoretical
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Energy efficiency of a flat-plate solar collector using thermally treated graphene-based nanofluids: Experimental study Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Omer A Alawi, Haslinda Mohamed Kamar, Hussein A Mohammed, AR Mallah, Omar A Hussein
A covalent functionalization approach was utilized for the preparation of highly dispersed pentaethylene glycol-thermally treated graphene-water as the absorbing material inside a flat-plate solar collector. Four mass fractions of nanofluids were prepared (0.025, 0.05, 0.075, and 0.1 wt% pentaethylene glycol-thermally treated graphene-water). Graphene nanoparticles were characterized by energy dispersive
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Quantum dot-modified titanium dioxide nanoparticles as an energy-band tunable electron-transporting layer for open air-fabricated planar perovskite solar cells Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Kanyanee Sanglee, Surawut Chuangchote, Taweewat Krajangsang, Jaran Sritharathikhun, Kobsak Sriprapha, Takashi Sagawa
Perovskite solar cells have been attracted as new representatives for the third-generation photovoltaic devices. Simple strategies for high efficiency with the long-term stability of solar cells are the challenges for commercial solar cell technology. Another challenge of the development toward industrial scale in perovskite solar cells is the production under the ambient and high humidity. In this
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Novel nanocomposite membranes based on cross-linked eco-friendly polymers doped with sulfated titania nanotubes for direct methanol fuel cell application Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 MH Gouda, Abdelaziz H Konsowa, Hassan A Farag, Noha A Elessawy, Tamer M Tamer, Mohamed S Mohy Eldin
Developing low cost and highly active fuel cell is one of the high-priority research directions for fuel cell commercialization, whereas durable electrodes and electrolyte membranes are keys for its optimization. Herein, a novel nanocomposite electrolyte membranes for direct methanol fuel cell were prepared from eco-friendly polymer blend composed of poly(vinyl alcohol) (PVA) and iota carrageenan (IC)
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Formulation design and pharmacokinetic evaluation of docosahexaenoic acid containing self-nanoemulsifying drug delivery system for oral administration Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Nabil A Alhakamy, Hibah M Aldawsari, Khaled M Hosny, Javed Ahmad, Sohail Akhter, Ahmed K Kammoun, Adel F Alghaith, Hani Z Asfour, Mohammed W Al-Rabia, Shadab Md
Docosahexaenoic acid is a omega-3-fatty acid which together with other long-chain omega-3-fatty acid known to have protective effect against various diseases including hypertension, myocardial infarction, Alzheimer disease, and cancers. Poor bioavailability owning to limited aqueous solubility limits its effective therapeutic delivery. Self-nanoemulsifying drug delivery systems are known to enhance
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Substitutional impurities in monolayer hexagonal boron nitride as single-photon emitters Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Michele Re Fiorentin, Kiptiemoi Korir Kiprono, Francesca Risplendi
Single-photon emitters in hexagonal boron nitride have attracted great attention over the last few years due to their excellent optoelectronical properties. Despite the vast range of results reported in the literature, studies on substitutional impurities belonging to the 13th and 15th groups have not been reported yet. Here, through theoretical modeling, we provide direct evidence that hexagonal boron
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Strain gauge properties of Pd+-ion-implanted polymer Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Francesca Di Benedetto, Ciro Esposito, Maria Lucia Protopapa, Emanuela Piscopiello, Marcello Massaro, Gennaro Cassano, Valentino Filiberto, Martino Palmisano, Leander Tapfer
Pd+ ions (90 keV) were implanted at normal incidence and at room temperature in different highly insulating (>200 GΩ) thermoplastic polymers (poly(methyl methacrylate), polypropylene, polyethylene terephthalate glycol-modified, and polycarbonate). At high fluence and optimized process parameters, the ion implantation gives rise to the formation of a nanocomposite thin surface layer constituted by Pd
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Effect of different preparation processes on tribological properties of graphene Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Yong Liu, Yi Dong, Yangang Zhang, Siyuan Liu, Yu Bai
Two processes of physical liquid phase stripping and chemical redox reduction were used to obtain graphene sheets. Fourier transform infrared spectroscopy and Raman spectroscopy test methods were used to compare and analyze the structure and disorder of graphene. The obtained graphene was modified with oleic acid and stearic acid. The dispersion stability of graphene as a lubricating oil additive was
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Carbon-based fully printable self-powered ultraviolet perovskite photodetector: Manganese-assisted electron transfer and enhanced photocurrent Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Shuhong Xu, Guangguang Huang, Chunlei Wang, Haibao Shao, Yiping Cui
In this work, we improved the photocurrent of self-powered ultraviolet photodetector via doping manganese in CsPbCl3 perovskite nanocrystals light harvester. The doped manganese in nanocrystals has the following three features to assist electron transfer from CsPbCl3 nanocrystals to titanium dioxide: (i) the fast exciton-to-manganese energy transfer process benefits for competing electrons with perovskite
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Wideband absorber based on conductive ink frequency selective surface with polarization insensitivity and wide-incident-angle stability Nanomater. Nanotechnol. (IF 3.7) Pub Date : 2020-01-01 Guangsheng Deng, Kun Lv, Hanxiao Sun, Yuan Hong, Xiaoying Zhang, Zhiping Yin, Jun Yang
In this article, a wideband, polarization-insensitive, and wide-incident-angle stable absorber based on conductive ink frequency selective surface is presented. The presented absorber is compatible with screen printing technology. The design and absorption principle of the proposed absorber is presented, and simulation analysis is conducted. The simulation results show that in the frequency range 6