Nanofibers are some of the most attractive materials that can modify functionalities for developing new kinds specific applications and mainly used as a biomedical material. Herein, we designed prepared antibacterial nonwoven fiber mats PLA composited with Ag nanoparticles by electrospinning. The effects varying filler contents on their chemical, surface morphology, thermal, water absorbency, properties were investigated using FTIR, SEM/EDS, DSC, swelling ratio, qualitative quantitative...

Functionalities of 3D printing filaments have gained much attention owing to their properties for various applications in the last few years. Innovative biocomposite based on polylactic acid (PLA) composited with ZnO nanoflowers at varying contents were successfully fabricated via a single-screw extrusion technique. The effects nanoflower chemical, thermal, mechanical, and antibacterial investigated using Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry...

Heavy metals are serious causes of water pollution affecting both living organisms and human life. This research focuses on the removal Pb(II) Cd(II) ions from waste aqueous solution through adsorption process using natural biosorbents chemically modified three local fruit peels comprising dragon peel (DFP), rambutan (RP), passion (PFP). Their surface morphologies functional groups were consecutively determined scanning electron microscope Fourier transform infrared spectrometer....

This research focuses on the mechanical properties of polypropylene (PP) blended with recycled PP (rPP) at various concentrations. The rPP can be added up to 40 wt% into matrix without significantly affecting properties. MFI increased increasing content. Modulus and tensile strength slightly decreased content, while elongation break 30.68% a increase in is probably caused by interfacial adhesion during blending process. electrical conductivity materials was improved adding carbon black...

The idea of generating high-value practical materials, such as activated carbons, from agricultural wastes a raw material has been quite important trend recently due to its positive contributions the environment and resource savings biomass. In this paper, carbons prepared durian husk waste by KOH chemical activation method are studied. We focus on effects stages activating temperature their properties. optimum conditions for were KOH/char ratio 1:2 at first second process temperatures 400...

Abstract Zinc oxide (ZnO) nanoparticles possess antibacterial properties. Being less toxic to humans than silver, they are attractive as agents in biomedical applications. In this study, we focus on the influence of size ZnO their action against strains three bacteria: one Gram-negative, Escherichia coli and two Gram-positive, Bacillus subtilis Staphylococcus aureus . The efficacy increases with decreasing particle size. A major contributor is oxidative stress induced by ZnO. To understand...

Recently, the one of most environments problems is a heavy metal contamination in water therefore it very important to remove these before discharging environment. In this work, efficacy Cu (II) adsorption on polymer hydrogel blends poly(vinyl alcohol) and chitosan (PVA/CS), at various compositions, from aqueous solution was investigated. The Fourier transform infrared spectroscopy used for verify chemical structure hydrogels. Water absorbency films investigated by swelling ratio...

Recently, interest in nonwoven mats composed of fibers manufactured by drawing polymer solutions or melts with suspended nanoparticles has been growing due to exciting opportunities for use biomedical applications. Poly(vinyl alcohol) (PVA), its biocompatibility, and zinc oxide (ZnO), antibacterial activity, present one interesting combination the manufacture fiber potential as wound dressings. Therefore, we have investigated electrospinning aqueous PVA ZnO nanoparticles. three different...

Applications of cellulose nanofibers currently match the demands biodegradable and renewable constituent biocomposites. In this study, we studied process preparing TEMPO-oxidized (TOCNs). These nano-sized fibers (ca. 11 nm) can be fabricated to high transmittance optically transparent paper (OP) films. Then OP films facilely immobilized initiating sites for subsequent surface-initiated atom transfer radical polymerization (SI ATRP). We investigated SI ATRP with styrene (St) kinetics...

Series of poly (vinyl alcohol)/chitosan (PVA/CS) electrospun nanofibers with different weight ratio PVA and CS were fabricated by electrospinning method. The surface morphology, diameter, structure investigated scanning electron microscopy (SEM). As a result composition measurements, the morphologies mainly affected polymer solution. When increasing chitosan content in blend solution, could hardly form. This indicates that nanofiber formation is enhanced content.

An innovative prototype machine was invented for hydrogel bead production, used preparing novel beads, based on biomaterials, fabricated from chitosan (CS), poly(vinyl alcohol) (PVA) and their blend heavy metal removal aqueous solution. The adsorption capacity of copper (II) ion onto the beads as adsorbents with varying compositions pH solution investigated. properties were determined using FTIR, SEM-EDX analysis elemental mapping analysis, water absorption measurement. results showed that...

ABSTRACT With an aim to develop anti‐electrostatic discharge materials based on biodegradable polymers, poly(vinyl alcohol) films composited with two different conductive fillers (carbon black and aluminium) at various contents (20−60%wt), were manufactured using solvent‐casting technique. The mechanical properties of such the investigated through tensile stress‐strain tests. Wettability morphology composite performed by water contact angle measurement SEM, respectively. Young's modulus can...

Due to their diverse and unique physical properties, miktoarm star copolymers (μ-SCPs) have garnered significant attention. In our study, we employed α-monobomoisobutyryl-terminated polydimethylsiloxane (PDMS-Br) carry out styrenics-assisted atom transfer radical coupling (SA ATRC) in the presence of 4-vinylbenzyl alcohol (VBA) at 0 °C. By achieving high efficiency (χc = 0.95), obtained mid-chain functionalized PDMS-VBAm-PDMS polymers with benzylic alcohols. Interestingly, matrix-assisted...

Recently, the composited nanofiber attraction has been growing from researchers across world due to its exciting opportunities for use in biomedical applications. In this study, we fabricated electrospun fibers poly (vinyl alcohol) (PVA) with Zinc Oxide (ZnO) nanoparticle potential From experimental results, there was not any chemical bonding between ZnO nanoparticles and PVA molecules. The effect of concentration solution on diameter found that increased raising suspended solution. This is...

Polylactic acid (PLA) is a bioplastic, which produced from natural materials. It well known that the PLA can be degraded in environment alternatively rendered to replace plastic petroleum base. In this paper, we study physical properties of composite films prepared composited with zinc oxide nanoparticles (ZnO NPs) by using solvent casting technique. was found ZnO NPs have affected morphological, water absorbency, mechanical and antibacterial biocomposite films. addition, also particles...

Petroleum-based polymers have significantly problems to the environment due it cannot degrade in nature. Biopolymer become interesting materials for replacing these overcome disadvantages. Here, we intend study biocomposite films of polylactic acid (PLA) blend polybutylene succinate (PBS) composited with ZnO nanoparticles. The chemical reaction and water absorbency were investigated by FT-IR spectroscopy swelling ratio, respectively. results showed that did not any reactions between chains...

Titanium dioxide thin films were deposited by DC reactive magnetron sputtering on silicon wafer and glass slide at power of 210 watt under total pressure 5.0×10 -3 mbar different oxygen partial pressure. A pure metallic titanium target was sputtered in a mixture argon gases. The crystal structure surface morphology characterized X-ray diffraction (XRD) atomic force microscopy (AFM), respectively. optical transmission measured spectrophotometer. results show that the crystalline anatase...

Recently, nanofibers have attracted attention from researchers worldwide because they can be applied in various fields. The obtaining of oriented ZnO nanoflowers polyvinyl alcohol (PVA) at a concentration 10 wt% loaded with nanoparticles and zinc acetate (Zn(OAc)2) concentrations by electrospinning was investigated. molecular weight PVA determined to approximately 63,547 g/mol. effects the Zn(OAc)2 on electrical conductivity polymer suspension morphological properties composite were also...

<p>Vetiver grass and it usages have been widely investigated in many researches as the preferred plant species due to its known efficiency, low cost, ease of availability spread. This research aimed use four different vetiver (<em>Vetiveria zizanioides</em>) ecotypes remove cyanide (CN<sup>-</sup>)-contaminated water for improve quality. Growth capability, tolerance removal efficiency were evaluated. The results showed that had a 100% survival rate one month...