The development of wearable electronics has attracted wide publicity. However, conventional batteries will face environmental pollution and cyclic charging. In this work, we report a novel washable textile triboelectric nanogenerators (WT-TENG) based on the transparent tape film and the polytetrafluoroethylene (PTFE) film. The WT-TENG can still maintain stable output performance after being cleaned

The heat transfer and friction characteristics of thermosyphon solar flat plate collector using Al 2 O 3 /water nanofluid as working fluid with helical twist insert and its impacts are analysed. Thermal behaviour, heat augmentation and pressure drop characteristics of the modified collector are compared with those of conventional riser tube collector. Alumina nanofluid of 0.1%, 0.3% and 0.5% volume

The successful implantation depends on the favorable biocompatibility of the implant. In this paper,microgrooves on the surface of Ti-6Al-4V titanium alloy implants were made by laser processing technology,scanning electron microscopy and surface profilometer were used to observe the laser textured titanium samples,firstly. Then, the liquid-solid contact angle-measuring instrument was used to characterize

The present investigation aims to explore therapeutic potential of biogenic synthesised silver nanoparticles (AgNPs) mediated using endophytic fungus extract isolated from Tinospora cordifolia. The synthesised AgNPs characterised using various physicochemical analyses. In FTIR, amide I and II bands of protein and hydroxyl groups of phenolic hydroxyl confirming bioactive metabolites presence over AgNPs

A new porous 3D coordination polymer (CP), namely [Mn2(Htpim)2(odpa)]·8H2O (1, Htpim = 2,4,5-tri(4-pyridyl)-imidazole, odpa = 4,4′-oxydiphthalate), was successfully synthesized. Furthermore, complex 1 could be applied as a probe displaying good ion sensing property of Cr3+ ion by fluorescence quenching. For the treatment of the temporary osteoporosis of the hip (TOH), the biological function of the

Surface architecture belonging to flora and fauna is preferred because of their unique three dimensional micro/nanostructures, which can be utilised as novel support in SERS based chemical detection. In this work, we have fabricated biomimetic SERS substrates by replicating the wings of two different beetles with interesting surface morphology by employing soft lithography technique. Micro-bowls and

By utilising the mixed-ligand approach, a novel coordination polymer based on Zn(II) ions as nodes have been synthesised by the Zn(NO3)2 · 6H2O reacting with 1,4-H2NDC in the presence of a second N-donor ligand L, and its chemical formula is {[Zn(L)1.5(1,4-NDC)]·H2O} n (1, 1,4-H2NDC = 1,4-naphthalenedicarboxylic acid and L = N,N′-di(4-pyridyl)suberoamide). The as-synthesised complex 1 reveals outstanding

In this research work, we report a facile one pot synthesis of Sn doped SrO (Sr1-xSnxO1-δ; where x = 0.1, 0.2, 0.3 and 0.4) based two dimensional nanoparticles. The physico-chemical properties of the prepared materials were characterized by XRD, EDAX, SEM and TEM. XRD confirmed that the prepared samples are cubic. The presence of appropriate atomic percentage of elements was predicted by EDAX. SEM

Severe plastic deformation such as equal channel angular pressing (ECAP) could change the mechanical and corrosion resistance of Mg alloys. The effects of ECAP extrusion on the mechanical and biodegradable properties of an extruded Mg-1.5Zn-0.5Y-0.5Zr alloy were studied in this work. After two passes and four passes ECAP extrusion, the microstructure, mechanical properties and degradation behaviours

The glass system of composition (AgPO3) 1-x (Ag2SO4) x [where x= 0, 0.15, 0.20, 0.25 Mol%] was prepared using the conventional melt quenching technique. The molar volume and density were determined to characterise the structure of the glasses obtained. X-ray diffraction was used to confirm the amorphous nature of the glass samples used. The absorbance and transmittance were measured in the spectral

The present study explores the therapeutic potential of gelatin nanoparticles as a carrier for the delivery of linezolid, a repurposed drug for the treatment of Mycobactrium tuberculosis. However, it has significant issues of large dose and toxicity. To overcome this problem, linezolid loaded mannosylated gelatin nanoparticles were prepared for specific targeting to alveolar macrophages. The system

The intention of this study was to prepare polyvinyl alcohol (PVA) and carboxymethyl cellulose (CMC) films and to improve their physicochemical properties by cross-linked with amino acids. Thus, the bio-composite films/membranes of PVA/CMC were an amalgamation with L- Histidine as the crosslinker via solution casting scheme. The effect of the L-Histidine addition on blend films was explored by various

The present investigation deals with the columnar structured growth of Mn doped ZnO (MZO) thin films by radio frequency sputtering technique. The X-ray diffraction and the processed electron diffraction pattern confirmed the hexagonal wurtzite structure and the film growth direction along (101) plane. The structure of grown film was compared with the pristine ZnO film and the JCPDS card No. 00-36-1451

AgBr/BiVO4 photocatalysts with heterojunction structures were prepared using a hydrothermal method. To analyse phase composition and microstructure, samples were characterised by X-ray diffraction and scanning electron microscopy, respectively. Photoluminescence measurements were used to characterise the recombination rate of photogenerated electron–hole pairs. The phase structure, chemical state and

S. aureus (SA) and P. aeruginosa (PA) contaminations in thermally hurt patients have controlled invasive illness producing humanity. Gold nanoparticles (AuNPs) engaged in behaviour have limits owed to their oxidative damage. Current examinations demonstrated the biosynthesis of highly biocompatible AuNPs from rich antioxidant of aqueous cutting of Aerva javanica (A. javanica). The cell viability of

Stretchable conductors are important ingredients in the new emerging wearable systems. Here, intrinsically stretchable con­ductors (ISCs) based on carbon nanomaterials with a good balance of properties are prepared through synergistic combination of graphene and carbon black (CB) into the matrices of thermoplastic polyurethane (TPU). The inks are prepared through mixing graphene and CB with adjustable

Novel MnS @ Mn3O4/C nanoflakes are prepared via two step method using natural polysaccharide. The structural, morphological and electrochemical features of the nanocomposite are investigated by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, transmission electron microscopy, cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance analysis. This synergetic

(2020). Preface. Materials Technology: Vol. 35, No. 9-10, pp. 507-508.

N-type organic semiconductors are of great importance for organic electronics. Nevertheless, the development of n-type organic semiconductors is far lagged than its counterpart of p-type organic semiconductors. Herein, a linear acenaphthene-imide-fused pyrazinacene-quinone (AIPQ) with high planarity is readily prepared via a two-fold condensation reaction. The incorporation of electron-withdrawing

Mg-Zn-Ca metal glass shows good promising applications in biomaterials. MAO coating and Ca-P coating was applied on Mg69Zn27Ca4 metal glass in order to improve the alloy biodegradation resistance and biocompatibility. Microstructure observation, electrochemical experiment, immersion experiment and cell cytotoxicity experiment (MG63 cells) were carried out. The result revealed that Ca-P coating exhibited

This work proposes a digital methodology for producing patient-specific wrist immobilisation splint and evaluates form, fit and functional aspects of the fabricated splint by finite element analysis and post production performance testing. The upper limb of a volunteer is first scanned using a 3D scanner, then the data is reverse engineered to obtain a CAD model of the desired splint. Finally, A polyamide

Friction stir processing (FSP) can play an important role in grain refinement, redistribution of second phase and texture evolution. In this study, different rotation speed was employed during FSP to process Mg-Zn-Nd (ZN20) alloy with different grain size, texture and distribution of second phase. Immersion test combined with observation on corrosion morphology was carried out to evaluate the corrosion

Designing a scaffold with appropriate level of porosity, mechanical strength and bioactivity is essential for bone tissue engineering. In this study, a hydroxyapatite (HAp)/diopside nanocomposite scaffold was fabricated through foam replication method. The optimal sample was specified using central composition design (CCD) statistical method regarding HAp to diopside weight ratio, sintering temperature

Metal Assisted Chemical Etching (MACE) is applied for generation of SiNWs (SiNWs). For the first time, the curved SiNWs are directly generated using MACE approach without any surface post-treatment after formation of SiNWs. This leaves the surface of the SiNWs intact without changing the surface composition. For comparison, straight SiNWs are generated under the same etchant and catalyst conditions

S. aureus  and S. epidermidis are the most common bacteria responsible for causing implant infections. We propose that 3D-printed antimicrobial biomedical devices are a rational solution for the prevention of infection. 3D printed polylactic acid (PLA) constructs were alkali-treated to increase hydrophilicity and functionalized using a suspension of Zinc/HNTs-Ag-Chitosan Oligosaccharide Lactate (ZnHNTs-Ag-COS)

The adsorption properties of two kinds of metal–organic frameworks (MOFs), PCN-228ʹ and PCN-230, have been studied by the grand canonical Monte Carlo (GCMC) method for the absorption of N2, H2, CH4/H2 mixed gas. Their pore size distributions are analysed by the Horvath-Kawazoe (HK) method. The PCN-230 exhibits an outstanding volumetric density for hydrogen storage endowed by its ultralow density and

The objective of present work was to isolate the mucilage as polysaccharide from the seeds of Cassia obtustifolia and to modify the isolated polysaccharide chemically by thiolation and carboxymethylation to develop novel excipient for drug delivery application. The attempts were made to enhance mucoadhesive potential of Cassia obtustifolia seed mucilage by thiolation and to reduce the disintegration

Objective: To construct a porous titanium-based implant with good biocompatibility and appropriate modulus matching human bone. Methods: Porous titanium with triangular, quadrangular and hexagonal prism as structure monomer were constructed by 3D printing, and the effects of pore structures on the mechanical and biological properties of materials were investigated by computational simulation, mechanical

Drug release properties for transdermal route can be better modified as per requirement which is mostly dependent upon the carrier system. In case of organic film-forming systems, the physical properties may not be achieved for successful delivery of drug through transdermal route. A novel organic-inorganic hybrid film-forming gel may fulfil these expectations to many extend. The present study focuses

The growing need for sustainable technologies has attracted considerable interest in the synthesis of ecofriendly materials. This paper reports the anti-inflammatory and antibacterial activities of sustainable silver nanoparticles (AgNPs) fabricated using endophytic fungus extracted from a medicinal plant, Cassia fistula. Fourier transform-infrared and UV-visible were used for AgNPs characterisation

In recent years, the usage of hydrogels in tissue regeneration and controlled drug release systems have been increasing rapidly due to their water holding capacity and 3D structure. In this study chitosan and dextran sulphate sodium were prefered to form pH-sensitive hydrogel by physical interaction. The biodegradability of the chitosan and the therapeutic properties of dextran sulphate sodium make

In this study,we prepared the 15-5 PH stainless steel samples using the wire-arc additive manufacturing (WAAM) technique. The performances for as-welded samples and samples after post-weld heat treatment (1050°C×1 h) was studied systematically. The main phases are martensite and grain boundary precipitates. There are many dislocations in the crystal structure of the as-welded samples. The Cu phase

Density functional theory (DFT) method was carried out to investigate the molecular interaction between metalloporphyrin-based sensor and propanol. The relative energies were used to determine the most stable state of metalloporphyrin and its complexes at three different spin states for further theoretical studies. The low-spin states were found to be the most stable states for cobalt porphyrin (CoP)

Innovative temperature measurements based on contactless luminescence thermometry require materials that exhibit a significant change of the luminescence parameters in set temperature range. PbMoO4 and PbMoO4 doped with copper ions single crystals with optically good quality are grown using low-thermal-gradient Czochralski technique. PbMoO4 and PbMoO4:Cu2+ samples reveal intense photoluminescence band

In this research, Al2O3-Ag anodic coating was synthesised by a single-step anodising and the antibacterial properties were investigated. The microstructure of the coatings was studied by FESEM and XRD analyses. The hardness test was also carried out to assess the mechanical properties of the coatings. Antimicrobial susceptibility and colony count test (CFU) methods were used to evaluate the antibacterial

The effects of Mg on microstructure, defects and properties of Al–Si alloy deposited by Wire and Arc-based Additive Manufacturing (WAAM) were investigated. The WAAM alloys were characterised by the metallographic microscope, X-ray diffraction, scanning electron microscope, computed tomography and electronic universal testing machine. The results show that the secondary dendrite arm spacing (SDAS) and

In this work, novel injectable and radiopaque calcium phosphate bone cements were prepared using zirconia short fiber as a radiopacifier. The radiopacity, setting time, injectability, anti-washout ability, microstructure, mechanical property, and the in vitro cytocompatibility of the novel cements were evaluated thoroughly. The results reveal that the incorporation of zirconia fiber significantly improves

Magnesium (Mg) and its alloys are promising materials for a wide range of biomedical applications due to its biodegradability. Nevertheless, their rapid corrosion dictates the need to develop strategies to control these materials’ corrosion rate. In fact, several surface modification techniques have been used to retard the corrosion of Mg and its alloys. Laser technology can be used to tailor Mg surfaces

A novel coordination polymer (CP) based on Eu(III) ion as node [EuK(BPDSDC)(DMF)(H2O)2]n (1, DMF = N,N-dimethylformamide) was produced via application of the bifunctional carboxylic acid sulphonate ligand of the biphenyl-3,3′-disulfonyl-4,4′-dicarboxylate (BPDSDC4 −). Furthermore, complex 1 could be applied as a probe for sensing Cu2+ ion via fluorescence quenching. The coefficient of quenching Ksv

The aim of the present research was to find out the in vitro biological behaviour by evaluating the bioactivity of scaffolds for bone tissue engineering and to examine the mechanism of baghdadite and apatite formation. For this purpose, baghdadite scaffolds with polycaprolactone and graphene nanocomposite coatings were fabricated using polymeric sponge and dip-coating methods. Results showed that regarding

In this research, an aqueous extract of Daphne mucronata leaves with different salt sources including Zn(NO3)2 and ZnSO4 solutions were used to synthesize ZnO-N and ZnO-S NPs, respectively. The physicochemical, antibacterial, antioxidant, and cytotoxic properties of these NPs were also surveyed. SEM and TEM images confirmed that the ZnO-N and ZnO-S NPs were polydispersed with spherical and plate shape

Protonated g-C3N4/MoS2 heterojunction with enhanced photocatalytic activity was prepared by treating g-C3N4/MoS2 with formic acid and using a hydrothermal method. The microstructure and morphology of the heterojunctions were analysed by XRD, FTIR, SEM, TEM, and XPS technology, respectively. The photodegradation experiment results verified that the formic acid treatment has a positive effect on the

The mechanical and physical properties of Mg-Ca alloys make them suitable for temporary orthopaedic implant applications. However, the rapid degradation of these alloys limits their use in the physiological environment. The effect of calcium phosphate (CaP) coating on biomineralization, biodegradation, and mechanical behaviour of the alloy in physiological environment is investigated in this work.

Porous boron nitride (PBN) as an emerging porous material exhibits unique physico-chemical properties for environmental remediation. However, the practical applications of PBN are very difficult due to its poor regeneration performance. In this work, we loaded α-Fe2O3 nanoparticles on PBN to form a kind of composite (HB) with high adsorption capacity, which possessed remarkably enhanced regeneration

In quasi-solid electrolytes loaded with nanoparticles such as silica and titania, the solvent of the electrolyte has a key role in the separation of ionic species and their adsorption on the surface of nanoparticle. The present article demonstrates the effect of different solvents on the ionic adsorption and its impact on the photoelectrochemical characteristics of dye sensitized solar cells (DSSCs)

There is no clear data about the optimum thicknesses, band gaps, and charge densities of Cu2O thin films to fabricate solar cells. Therefore, here, Solar Cell Capacitance Simulator (SCAPS) program was employed to simulate the Cu2O nanostructures solar cells. Effect of window layer thickness, absorber layer thickness, bandgap, and carrier concentration on basic parameters of Cu2O solar cells were studied

The capability to hinder microbial growth on the implant surfaces is of great interest in medical applications. This paper presents our study on the synthesis of zeolite/silver-graphene oxide (Zeo/Ag-GO) nanocomposite to enhance antibacterial activities of bone implants. Zeo/Ag-GO was synthesized using via semi-powder metallurgy and then characterized in terms of microstructure, antibacterial activities

The work investigates the design and optimisation of vildagliptin (VLG)-loaded gellan gum beads for sustained release delivery. The VLG beads were prepared by the ionotropic-gelation method. A 3 2 response surface methodology was used to optimised the effects of independent variables such as gellan gum to sodium alginate ratio ( X 1 ) and concentration of CaCl2 ( X 2 %) on dependent variables such

This work deals with the unique TiO2/Cu2O nanocomposite was synthesised by a hydrothermal precipitation way and high photocatalytic degradation of target organic toxin over the photocatalytic coordination. The structure, morphology, composition, optical and photocatalytic belongings of the as-prepared nanomaterials (NMs) were analytically considered in aspect. In 80 min of exposure time, closely 94

Cesium tungsten bronze nanoparticles have excellent near infrared lightresponse characteristics, easy surface modification and low cytotoxicity, which are attractive for tumor photothermal therapy. In this paper, cesium tungsten bronze nanoparticles were synthesized by a simple hydrothermal reaction method using cesium hydroxide as raw material. In order to improve the properties of dispersion and

Organic dyes are mostly used in textile, paper, cosmetic, pharmaceutical industries etc., as colouring agents and being disposed in the environment that makes serious health issues. Therefore, this study has focused to the green synthesis of silver nanoparticles (Ag NPs) using AgNO3 and Punica granatum seeds extract as reducing/capping agent. The plasmonic absorption of obtained silver nanoparticles

Pristine and iron (Fe) doped tin oxide (SnO2) nanoparticles (NPs) were prepared by using a microwave aided co-precipitation method and the effect of doping on structural, optical and photocatalytic belongings have been investigated by XRD, FTIR, HR-SEM with EDX mapping, UV-Vis. DRS and Photoluminescence (PL) spectra respectively. XRD analysis has revealed a tetragonal SnO2 structure and the typical

In recent years, perovskite quantum dots (QDs) have become a new class of semiconductor materials due to their high monodispersity and adjustable emission spectra. However, there are few studies on perovskite QDs ligands, and there are some problems such as poor stability and low photoluminescence quantum yield (PLQY). Here, we prepared CsPbBr3 QDs with excellent optical properties and crystallinity

Local delivery of antibiotics utilising bone cement is a well-known approach for controlling postoperative infections related to implant. 1, 5 and 10 wt.% of clindamycin (Cli) was embedded into polymethylmethacrylate (PMMA)–based bone cement for inhibiting postsurgical infection. Clindamycin antibiotic drug was homogeneously embedded into the matrix of PMMA-based cement. The results revealed that the

The present work describes the synthesis, characterisation and antimicrobial activity of lignin-polylactic acid (PLA) blended film. Film was prepared using co-polymerisation reaction of lignin and lactic acid in the presence of stannous chloride as a catalyst and poly(vinyl alcohol) to get the uniform film. The properties of the film was studied by scanning electron microscopy (SEM), X-ray diffraction

By immobilising LaFeO3 and Au nanoparticles on the surface of Cu2O polyhedral microspheres, we have prepared novel binary LaFeO3/Cu2O and ternary Au/LaFeO3/Cu2O composite photocatalysts. The as-fabricated composites were systematically investigated by using various characterisation techniques. Photocurrent response and EIS measurements suggest that the composite photocatalysts exhibit an electron/hole

In the present work, monolithic pure magnesium (Mg) and magnesium with 1.5, 2.5 & 5.0 wt. % of titanium dioxide (TiO2) nanoparticulate composites were synthesised using powder metallurgy technique followed by two-stage hybrid microwave sintering and hot extrusion at 350°C with an extrusion ratio of 16:1. Mass density, porosity, microstructure, microhardness and compressive strength of the composite

Bismuth ferrite nanostructure, BiFeO3, (BFO) belonging to perovskite family, was synthesised by a chemical route sintering temperature at 800°C for 6 h. The crystalline phase of the materials was investigated by X-ray diffraction (XRD). The morphology and particle size of the BFO samples were determined by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis, respectively

The PEDOT/TiO2 nanocomposites with different TiO2 particle sizes were fabricated by a simple soft chemical approach-assisted in situ synthesis route and used as an effective cathode of Li-S batteries. When the TiO2 particle size was 5 nm, the discharge capacity of the cells is the best and the initial discharge capacity is 859.7 mAhg−1, within 300 charge–discharge cycles at 1 C. The improvement on

Pure, and doped with Al/Mn, ZnO nanoparticles were produced by the chemical co-precipitation method. X-ray diffraction analysis confirmed the hexagonal crystalline with wurtzite structure of pure and doped samples. Williamson-Hall (W-H) analysis was used to determine the crystallite size and micro-strains. The change in the bond length and lattice parameters of the doped ZnO confirms the incorporation