17,494 results match your criteria zinc oxide


Combined application of zinc oxide nanoparticles and biofertilizer to induce salt resistance in safflower by regulating ion homeostasis and antioxidant defence responses.

Ecotoxicol Environ Saf 2021 May 5;218:112262. Epub 2021 May 5.

Department of Botany, S.P. College, Srinagar, Jammu and Kashmir, India. Electronic address:

Salinity is a key devastating abiotic factor that hinders the development and yield of safflower. The sole and combined application of zinc oxide nanoparticles (ZnO-NPs) and a biofertilizer (BF) to improve salt tolerance in safflower has not been thoroughly explored. The response of safflower plants in a pot experiment to the foliar spray of ZnO-NPs alone and in combination with a BF was thus detected. Read More

View Article and Full-Text PDF

Au integrated 2D ZnO heterostructures as robust visible light photocatalysts.

Chemosphere 2021 Apr 28;280:130594. Epub 2021 Apr 28.

Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India.

Integration of semiconducting nanostructures with noble metal nanoparticles are turning highly desirable for cost efficient energy and environmental related applications. From this viewpoint, we report on a facile aqueous synthesis of polymer capped gold (Au) nanoparticles on free standing 2D layered structures of zinc oxide (ZnO) to result with ZnO/Au nanocomposites. Concentration of Au nanoparticles were observed to promote the preferential growth of ZnO along the (002) wurtzite plane. Read More

View Article and Full-Text PDF

A hafnium oxide-coated dendrite-free zinc anode for rechargeable aqueous zinc-ion batteries.

J Colloid Interface Sci 2021 Apr 24;599:467-475. Epub 2021 Apr 24.

School of Chemical Engineering, North China University of Science and Technology, Tangshan 063009, PR China. Electronic address:

In aqueous zinc-ion batteries, metallic zinc is widely used as an anode because of its non-toxicity, environmental benignity, low cost, high abundance and theoretical capacity. However, growth of zinc dendrites, corrosion of zinc anode, passivation, and occurrence of side reactions during continuous charge-discharge cycling hinder development of zinc-ion batteries. In this study, a simple strategy involving application of a HfO coating was used to guide uniform deposition of Zn to suppress formation of zinc dendrites. Read More

View Article and Full-Text PDF

Deposition of zinc cobaltite nanoparticles onto bismuth vanadate for enhanced photoelectrochemical water splitting.

J Colloid Interface Sci 2021 Apr 26;599:453-466. Epub 2021 Apr 26.

Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea. Electronic address:

During the past few decades, photoelectrochemical (PEC) water splitting has attracted significant attention because of the reduced production cost of hydrogen obtained by utilizing solar energy. Significant efforts have been invested by the scientific community to produce stable ternary metal oxide semiconductors, which can enhance the stability and increase the overall production of oxygen. Herein, we present the ternary metal oxide deposition of ZnCoO as a route to obtain a novel photocatalyst layer on BiVO to form BiVO/ZnCoO a novel composite photoanode for PEC water splitting. Read More

View Article and Full-Text PDF

Hydrophobic Surface Coating Can Reduce Toxicity of Zinc Oxide Nanoparticles to the Marine Copepod .

Environ Sci Technol 2021 May 7. Epub 2021 May 7.

State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Hong Kong, China.

Coated zinc oxide nanoparticles (ZnO-NPs) are more commonly applied in commercial products but current risk assessments mostly focus on bare ZnO-NPs. To investigate the impacts of surface coatings, this study examined acute and chronic toxicities of six chemicals, including bare ZnO-NPs, ZnO-NPs with three silane coatings of different hydrophobicity, zinc oxide bulk particles (ZnO-BKs), and zinc ions (Zn-IONs), toward a marine copepod, . In acute tests, bare ZnO-NPs and hydrophobic ZnO-NPs were less toxic than hydrophilic ZnO-NPs. Read More

View Article and Full-Text PDF

Effectiveness of skin cleanser and protectant regimen on incontinence-associated dermatitis outcomes in acute care patients: A cluster randomised trial.

Int Wound J 2021 May 7. Epub 2021 May 7.

Nursing Research Unit, Tan Tock Seng Hospital, Singapore, Singapore.

Skin cleansers and protectants protect skin from incontinent matter to reduce the risk of incontinence-associated dermatitis (IAD), but their effectiveness treating established IAD in the tropics is unknown. We conducted an open-label cluster randomised trial to compare the effectiveness of a combined regimen of (1) specialised skin cleansers with disposable body wipes and (2) either an acrylic terpolymer (T1) or zinc oxide (T2) skin protectant against disposable body wipes and zinc oxide protectant (control) in promoting IAD healing and reducing the risk of deterioration. Eighty-four patients were recruited in a tertiary hospital in Singapore between April 2019 and January 2020 (T1: n = 23; T2: n = 37; Control: n = 24). Read More

View Article and Full-Text PDF

Zinc oxide nanoparticles and 24-epibrassinolide alleviates Cu toxicity in tomato by regulating ROS scavenging, stomatal movement and photosynthesis.

Ecotoxicol Environ Saf 2021 May 3;218:112293. Epub 2021 May 3.

Collaborative Innovation Center of Sustainable Forestry in Southern China, College of Forest Science, Nanjing Forestry University, Nanjing 210037, China. Electronic address:

Nanoparticles (NPs) have recently emerged as potential agents for plants to ameliorate abiotic stresses by acting as nano-fertilizers. In this regard, the influence of the zinc oxide nanoparticles (ZnO-NPs) on plant responses to copper (Cu) stress has been poorly understood. Hence, the present study was executed to explore the role of ZnO-NPs (foliar) and 24-epibrassinolide (EBL; root dipping) individually or in combined form in the resilience of tomato (Solanum lycopersicum) plant to Cu stress. Read More

View Article and Full-Text PDF

The Role of Al -Based Aqueous Electrolytes in the Charge Storage Mechanism of MnO Cathodes.

Small 2021 May 6:e2101515. Epub 2021 May 6.

Université de Paris, Laboratoire d'Electrochimie Moléculaire, UMR CNRS 7591, Paris, F-75013, France.

Rechargeable aqueous aluminium batteries are the subject of growing interest, however, the charge storage mechanisms at manganese oxide-based cathodes remain poorly understood. In essense, every study proposes a different mechanism. Here, an in situ spectroelectrochemical methodology is used to unambiguously demonstrate that reversible proton-coupled MnO -to-Mn conversion is the main charge storage mechanism occurring at MnO cathodes for a range of slightly acidic Al -based aqueous electrolytes, with the Al hexaaquo complex playing the key role of proton donor. Read More

View Article and Full-Text PDF

Microshear Bond Strength of Nanoparticle-Incorporated Conventional and Resin-Modified Glass Ionomer to Caries-Affected Dentin.

Int J Dent 2021 16;2021:5565556. Epub 2021 Apr 16.

Oral and Dental Disease Research Center, Department of Operative Dentistry, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.

The purpose of this study was to assess the influence of three different types of nanoparticles (silver (SNPs), titanium dioxide (TNPs), and zinc oxide (ZNPs)) on the microshear bond strength of conventional glass ionomer cement (CGIC) and resin-modified glass ionomer cement based on whether CGIC or RMGIC is used with four subgroups (based on the incorporation of SNPs, ZNPs, and TNPs in addition to a control subgroup) ( = 12) as follows: CGIC, CGIC + TNP, CGIC + ZNP, CGIC + SNP, RMGIC, RMGIC + TNP, RMGIC + ZNP, and RMGIC + SNP. After 24 hours, the SBS of specimens was tested and the obtained data were analyzed using two-way ANOVA and Tukey's HSD test. The obtained results showed that the incorporation of TNPs in two glass ionomers was not statistically significant compared with the control subgroups ( > 0. Read More

View Article and Full-Text PDF

Physicochemical properties and effect of bioceramic root canal filling for primary teeth on osteoblast biology.

J Appl Oral Sci 2021 3;29:e20200870. Epub 2021 May 3.

Universidade Estadual Paulista "Julio de Mesquita Fillho" (UNESP) - Faculdade de Odontologia de Araraquara - Departamento de Odontologia Restauradora - Araraquara - SP - Brasil.

Objective: Bio-C Pulpecto (Bio-CP) was recently developed as the first bioceramic root filling material for primary teeth. To evaluate the physicochemical properties of radiopacity, setting time, pH, cytocompatibility and potential of Bio-CP to induce mineralisation, compared with (1) Calen thickened with zinc oxide (Calen-ZO), and (2) zinc oxide and eugenol (ZOE).

Methodology: Physicochemical properties were evaluated according to ISO 6876. Read More

View Article and Full-Text PDF

Transition-metal complexes of group 12 with 1,1'-bis(phosphanyl)ferrocene ligands.

Acta Crystallogr C Struct Chem 2021 May 26;77(Pt 5):240-248. Epub 2021 Apr 26.

Department of Chemistry & Biochemistry and Centre for Nanoscience, University of Missouri-St Louis, One University Boulevard, St Louis, MO 63121-4499, USA.

The syntheses of four new cadmium and zinc complexes with 1,1'-bis(phosphanyl)ferrocene ligands and their phosphine chalcogenide derivatives are reported. The complexes were characterized by elemental analyses and IR, H NMR, P NMR and electronic absorption spectroscopy. The crystal structures of dichlorido[1-diphenylphosphinoyl-1'-(di-tert-butylphosphanyl)ferrocene-κO,P]cadmium(II), [CdCl{(CHOP)(CHP)Fe}] or CdCl(κP,O-dppOdtbpf) (1), bis[μ-(tert-butyl)(1'-diphenylphosphinoylferrocen-1-yl)phosphinato-κO,O':O'']bis[chloridozinc(II)], [Zn{(CHOP)(CHOP)Fe}Cl] or [ZnOCl{κO,O'-PhPOFcPO(t-Bu)}] (2), 1,1'-bis(di-tert-butylthiophosphinoyl)ferrocene, [Fe(CHPS)] or dtbpfS (3), and [1,1'-bis(dicyclohexylphosphanyl)ferrocene-κP,P'][chlorido/cyanido(0. Read More

View Article and Full-Text PDF

Biogenic zinc-oxide nanoparticles of leaves abrogates rotenone induced neuroendocrine toxicity by regulation of oxidative stress and acetylcholinesterase activity.

Biochem Biophys Rep 2021 Jul 17;26:100999. Epub 2021 Apr 17.

Department of Mathematical and Physical Science, Faculty of Science, Osun State University, Oshogbo, Nigeria.

Zinc oxide nanoparticles (ZnONPs) from plant origin were postulated to regulate complex hormonal control through the hypothalamus- pituitary-testicular axis and somatic cells due to their unique small size and effective drug delivery to target tissues. This study therefore investigates the biogenic synthesis of zinc oxide nanoparticles (ZnO NPs) from leaves on key endocrine hormones (LH, FSH and testosterone), MDA level, antioxidant enzymes (SOD and CAT), acetylcholineesterase (AChE) activity and reactive nitrogen species (NO) level in rotenone induced male rat. The animals were divided into six groups (n = 8). Read More

View Article and Full-Text PDF

Zinc oxide spiky nanoparticles: A promising nanomaterial for killing tumor cells.

Mater Sci Eng C Mater Biol Appl 2021 May 26;124:112071. Epub 2021 Mar 26.

MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China; Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China; SCNU Qingyuan Institute of Science and Technology Innovation Co., Ltd., Qingyuan 511517, China. Electronic address:

Zinc oxide (ZnO) nanostructures have been widely studied in biomedical fields due to their special properties. In recent years, ZnO spherical nanoparticles (SNPs) with nano-size as an anti-tumor agent have been widely concerned. While the effects of the non-spherical shaped ZnO nanoparticles on tumor cell death have been rarely reported. Read More

View Article and Full-Text PDF

Electrical and visible light dual-responsive ZnO nanocomposite with multiple wound healing capability.

Mater Sci Eng C Mater Biol Appl 2021 May 26;124:112066. Epub 2021 Mar 26.

College of Chemistry, Nanchang University, Nanchang, Jiangxi 330088, PR China; The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330088, PR China. Electronic address:

The healing process of open wounds is a competition between cells and bacteria. Therefore, a strategy that can quickly remove bacteria and promote cell proliferation to accelerate wound healing is urgently needed. Inspired by photoelectric synergy tactics, we improved both the optical and electrical response of zinc oxide (ZnO) through the modification of polydopamine (PDA) and reduced graphene oxide (rGO), thus obtaining a ZnO composite named PDA-rGO-ZnO (PrZ). Read More

View Article and Full-Text PDF

Amorphous NdIZO Thin Film Transistors with Contact-Resistance-Adjustable Cu S/D Electrodes.

Membranes (Basel) 2021 Apr 30;11(5). Epub 2021 Apr 30.

Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China.

High-performance amorphous oxide semiconductor thin film transistors (AOS-TFT) with copper (Cu) electrodes are of great significance for next-generation large-size, high-refresh rate and high-resolution panel display technology. In this work, using rare earth dopant, neodymium-doped indium-zinc-oxide (NdIZO) film was optimized as the active layer of TFT with Cu source and drain (S/D) electrodes. Under the guidance of the Taguchi orthogonal design method from Minitab software, the semiconductor characteristics were evaluated by microwave photoconductivity decay (μ-PCD) measurement. Read More

View Article and Full-Text PDF

Recent Advances in the Plasma-Assisted Synthesis of Zinc Oxide Nanoparticles.

Nanomaterials (Basel) 2021 Apr 30;11(5). Epub 2021 Apr 30.

Department of Textiles, Graphic Arts and Design, Faculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva 12, 1000 Ljubljana, Slovenia.

An overview of recent work on the low-temperature plasma-assisted synthesis of zinc oxide (ZnO) nanoparticles is presented and interpreted in terms of gas-phase and surface reactions with illustrated examples. The thermodynamical nonequilibrium conditions allow the formation of chemically reactive species with a potential energy of several eV, which readily interact with the Zn precursors and initiate reactions leading to the formation of nanoparticles or nanowires. The high-quality nanowires were synthesized from Zn powders only upon interaction with moderately ionized plasma in a narrow range of plasma parameters. Read More

View Article and Full-Text PDF

A Study about Schottky Barrier Height and Ideality Factor in Thin Film Transistors with Metal/Zinc Oxide Nanoparticles Structures Aiming Flexible Electronics Application.

Nanomaterials (Basel) 2021 Apr 30;11(5). Epub 2021 Apr 30.

Sensor Technology Department, University of Paderborn, 33098 Paderborn, Germany.

Zinc oxide nanoparticles (ZnO NP) used for the channel region in inverted coplanar setup in Thin Film Transistors (TFT) were the focus of this study. The regions between the source electrode and the ZnO NP and the drain electrode were under investigation as they produce a Schottky barrier in metal-semiconductor interfaces. A more general Thermionic emission theory must be evaluated: one that considers both metal/semiconductor interfaces (MSM structures). Read More

View Article and Full-Text PDF

Synthesis of a novel ternary (g-CN nanosheets loaded with Mo doped ZnOnanoparticles) nanocomposite for superior photocatalytic and antibacterial applications.

J Photochem Photobiol B 2021 Apr 27;219:112202. Epub 2021 Apr 27.

Department of Chemistry, University of Management and Technology, Lahore, Pakistan.

This article reports the synthesis of a novel ternary Visible-Light-Driven (VLD) photocatalyst and antibacterial agent. The two-dimensional graphitic carbon nitride nanosheets (g-CN NSs) and 7% molybdenum doped zinc oxide nanoparticles (Mo doped ZnO NPs) were used for the synthesis of the 65% g-CN hybridized with 7% Mo doped ZnO novel ternary nanocomposite (Mo doped ZnO/g-CN ternary NC). The synthesis process, as well as the structures, morphologies, photocatalytic and antibacterial properties of the synthesized ternary NC and constituents, were investigated by using several spectroscopic and microscopic techniques. Read More

View Article and Full-Text PDF

Multifunctional Applications of Blow-Spinning Structured Fibrous Membranes in Water Purification.

ACS Appl Mater Interfaces 2021 May 4. Epub 2021 May 4.

Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China.

With increasing water pollution and human health problems caused by oily wastewater, the fabrication of oil-water separation materials has become an urgent task. However, most of the reported materials have a single function and poor performance. In this paper, a multifunctional zinc oxide/polyaniline/polyacrylonitrile (ZnO/PANI/PAN) nanofibrous membrane with needle-like ZnO nanorods was prepared by synthesis of PANI and a hydrothermal reaction on a highly stable self-standing PAN blow-spinning fibrous membrane. Read More

View Article and Full-Text PDF

Preparation of Graphene Oxide-Embedded Hydrogel as a Novel Sensor Platform for Antioxidant Activity Evaluation of .

Front Chem 2021 16;9:675346. Epub 2021 Apr 16.

Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, China.

Antioxidation is very important in medicine and food. The current evaluation technologies often have many shortcomings. In this work, an improved electrochemical sensing platform for the evaluation of antioxidant activity has been proposed. Read More

View Article and Full-Text PDF

Green Synthesis of Luminescent Gold-Zinc Oxide Nanocomposites: Cell Imaging and Visible Light-Induced Dye Degradation.

Front Chem 2021 14;9:639090. Epub 2021 Apr 14.

Department of Chemistry, Indian Institution of Technology Roorkee, Roorkee, India.

Green synthesis of gold-zinc oxide (Au-ZnO) nanocomposite was successfully attempted under organic solvent-free conditions at room temperature. Prolonged stirring of the reaction mixture introduced crystallinity in the ZnO phase of Au-ZnO nanocomposites. Luminescence properties were observed in these crystalline Au-ZnO nanocomposites due to embedding of gold nanoparticles (AuNP) of 5-6 nm diameter on the surface. Read More

View Article and Full-Text PDF

Using Cu-Zn-Sn-O Precursor to Optimize CZTSSe Thin Films Fabricated by Se Doping With CZTS Thin Films.

Front Chem 2021 16;9:621549. Epub 2021 Apr 16.

Laboratory of Vacuum Smelting, School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an, China.

The copper-zinc-tin oxide (CZTO) precursor was synthesized to avoid sudden volume expansion from CZTO precursor to CuZnSnS (CZTS) thin films and smooth CZTSSe thin-film surfaces without pinholes. The CZTO precursor was prepared by coprecipitation and ball milling to form nanoink of CZTO. Based on the CZTO precursor, the CZTS thin film was fabricated and then selenized to make pinhole-free and flat CuZnSn(S,Se)(CZTSSe) thin films. Read More

View Article and Full-Text PDF

Facile Controlling of the Physical Properties of Zinc Oxide and Its Application to Enhanced Photocatalysis.

J Anal Methods Chem 2021 10;2021:5533734. Epub 2021 Apr 10.

School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam.

In this study, the physical properties of ZnO were facile controlled by the synthesis method with the addition of capping and precipitation agents. As-prepared ZnO samples had different morphologies such as carnation flower-like ZnO (CF-ZnO), rose-flower-like ZnO (RF-ZnO), rod-like ZnO (R-ZnO), and nanoparticle ZnO (N-ZnO) and were characterized by SEM, XRD, N adsorption/desorption isotherms, FT-IR, and DR/UV-vis. All samples had a crystallite structure of hexagonal wurtzite type. Read More

View Article and Full-Text PDF

A novel treatment of diaper dermatitis in children and adults.

J Cosmet Dermatol 2021 Apr;20 Suppl 1:1-4

Dermatology Clinic, University of Catania, Catania, Italy.

Background: Diaper dermatitis (DD) is an acute inflammatory reaction, regardless of the cause, of the diaper-covered area. Topical skin barrier repair cosmetic products are the mainstay treatment to cure and/or prevent DD.

Aims: To assess the efficacy/tolerability of a zinc gluconate-taurine/zinc oxide and panthenol/ glycerin/ Butyrospermum parkii butter barrier cream using clinical evaluation. Read More

View Article and Full-Text PDF

A novel treatment of intertrigo in athletes and overweight subjects.

J Cosmet Dermatol 2021 Apr;20 Suppl 1:23-27

Dermatology Clinic, University of Catania, Catania, Italy.

Background: Intertrigo is a recurrent inflammatory dermatosis involving large/small body folds. Skin barrier products represent the mainstay of treatment in uncomplicated mild/moderate intertrigo.

Aims: To assess by clinical and instrumental evaluation the efficacy and tolerability of a new barrier spray containing zinc gluconate-taurine complex and zinc oxide combined with panthenol, glycerin, and Shea (Butyrospermum parkii) butter in mild-to-moderate intertrigo in athletes and overweight subjects. Read More

View Article and Full-Text PDF

ZnO nanoparticles as efficient sunlight driven photocatalyst prepared by solution combustion method involved lime juice as biofuel.

Spectrochim Acta A Mol Biomol Spectrosc 2021 Apr 19;258:119857. Epub 2021 Apr 19.

Department of Physics, Dr. N. G. P. Arts and Science College, Coimbatore - 641048, Tamilnadu, India. Electronic address:

We have prepared high purity Zinc oxide (ZnO) nanoparticles (NPs) by solution combustion synthesis (SCS) method with the aid of lime juice extract. From powder X-ray diffraction (XRD) spectra, it is observed that the ZnO NPs possess single phase, hexagonal wurzite structure with sharp intense peak at (101) plane, agrees with the planes of SAED pattern. Further, the crystallite size is found to be around 18 nm. Read More

View Article and Full-Text PDF

Nano Zinc Versus Bulk Zinc Form as Dietary Supplied: Effects on Growth, Intestinal Enzymes and Topography, and Hemato-biochemical and Oxidative Stress Biomarker in Nile Tilapia (Oreochromis niloticus Linnaeus, 1758).

Biol Trace Elem Res 2021 Apr 30. Epub 2021 Apr 30.

Department of Animal Production, Fish Research Laboratory, Faculty of Agriculture at Moshtohor, Benha University, Benha, 13736, Egypt.

Five isonitrogenous diets were formulated to comprise two forms of zinc (Zn): convention zinc oxide named Bulk-ZnO or zinc oxide nanoparticles (Nano-ZnO) supplemented at two levels 30 and 60 mg kg compared to the control diet. Nile tilapia, Oreochromis niloticus, fingerlings (5.02-5. Read More

View Article and Full-Text PDF

Facile green synthesis of ZnO-RGO nanocomposites with enhanced anticancer efficacy.

Methods 2021 Apr 27. Epub 2021 Apr 27.

King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia; Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.

Drug resistance and inability to distinguish between cancerous and non-cancerous cells are important obstacles in the treatment of cancer. Zinc oxide nanoparticles (ZnO NPs) is now emerging as a crucial material to challenge this global issue due to its tunable properties. Developing an effective, inexpensive, and eco-friendly method in order to tailor the properties of ZnO NPs with enhanced anticancer efficacy is still challenging. Read More

View Article and Full-Text PDF

Chitosan Nanocomposite Coatings Containing Chemically Resistant ZnO-SnO Core-shell Nanoparticles for Photocatalytic Antifouling.

Int J Mol Sci 2021 Apr 26;22(9). Epub 2021 Apr 26.

Functional Materials Group, Department of Applied Physics, School of Engineering Sciences, KTH Royal Institute of Technology, Hannes Alfvéns väg 12, 114 19 Stockholm, Sweden.

Functional nanocomposites with biopolymers and zinc oxide (ZnO) nanoparticles is an emerging application of photocatalysis in antifouling coatings. The reduced chemical stability of ZnO in the acidic media in which chitosan is soluble affects the performance of chitosan nanocomposites in antifouling applications. In this study, a thin shell of amorphous tin dioxide (SnO) was grown on the surface of ZnO to form ZnO-SnO core-shell nanoparticles that improved the chemical stability of the photocatalyst nanoparticles, as examined at pH 3 and 6. Read More

View Article and Full-Text PDF

Inorganic Nanoparticles and Composite Films for Antimicrobial Therapies.

Int J Mol Sci 2021 Apr 27;22(9). Epub 2021 Apr 27.

Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania.

The development of drug-resistant microorganisms has become a critical issue for modern medicine and drug discovery and development with severe socio-economic and ecological implications. Since standard and conventional treatment options are generally inefficient, leading to infection persistence and spreading, novel strategies are fundamentally necessary in order to avoid serious global health problems. In this regard, both metal and metal oxide nanoparticles (NPs) demonstrated increased effectiveness as nanobiocides due to intrinsic antimicrobial properties and as nanocarriers for antimicrobial drugs. Read More

View Article and Full-Text PDF