Preparation of ZnO/Ag nanocomposite and coating on polymers for anti-infection biomaterial application

Sadeghi, Babak

doi:10.1016/j.saa.2013.09.022

Cited by 23 publications

(10 citation statements)

References 35 publications

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“…Nanomaterials possess enhanced physicochemical, optical, mechanical and magnetic properties compared to those of bulk materials. In recent years, metal oxide semiconductor nanoparticles have attracted the attention of researchers due to their potential applications in several areas of physics, chemistry, biology and materials science [1]. Among the metal oxide semiconductors, cadmium oxide (CdO) is a II-VI group semiconductor which exhibits high electrical conductivity and optical transparency.…”

Section: Introductionmentioning

confidence: 99%

CdO-Fe₃O₄ nanocomposite with enhanced magnetic and photocatalytic properties

Nallendran¹,

Selvan²,

Balu³

2019

Materials Science-Poland

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Pure CdO nanopowder and CdO-Fe 3 O 4 nanocomposite were synthesized by a cost effective chemical method, and the samples were characterized by XRD, SEM, TEM, FT-IR, UV-Vis-NIR and PL. Also, magnetic and photocatalytic properties of the synthesized samples were studied. XRD patterns of the composite confirm the presence of diffraction peaks related to both CdO and Fe 3 O 4 . EDX spectrum confirms the presence of the elements Cd, O and Fe in the composite. Peaks related to Cd-O and Fe-O bonds were observed respectively at 688 cm −1 and 592 cm −1 in the FT-IR spectrum. The paramagnetic behavior of pure CdO becomes ferromagnetic when coupled with Fe 3 O 4 . The composite exhibited a high photodegradation efficiency of 92.85 % against the degradation of methylene blue dye under visible light radiation.

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Section: Introductionmentioning

confidence: 99%

CdO-Fe₃O₄ nanocomposite with enhanced magnetic and photocatalytic properties

Nallendran¹,

Selvan²,

Balu³

2019

Materials Science-Poland

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“…Sadeghi fabricated zinc oxide (ZnO) and Ag nanocomposites, which when coated on PVC significantly inhibited the growth of S. aureus . In addition to this, ZnO/Ag nanocomposites caused death of S. aureus by inducing thiol depletion . Zhou et al designed Ag–chitosan complex and reacted it with clay to form a clay–chitosan–Ag composite which possessed excellent antibacterial properties and also has the potential to be used as a material for a sustained drug release system in indwelling urinary catheters .…”

Section: Strategies For Developing Antimicrobial Catheter Surfacementioning

confidence: 99%

“…In addition to this, ZnO/Ag nanocomposites caused death of S. aureus by inducing thiol depletion. [105] Zhou et al designed Ag-chitosan complex and reacted it with clay to form a clay-chitosan-Ag composite which possessed excellent antibacterial properties and also has the potential to be used as a material for a sustained drug release system in indwelling urinary catheters. [106] Further, polydimethyl siloxane/clay-chitosan-Ag nanocomposite was synthesized using an intercalation reaction and its antibacterial action was tested against E. coli, P. aeruginosa, S. aureus, and C. albicans.…”

Section: Coating On Catheter Surfacementioning

confidence: 99%

Biomodification Strategies for the Development of Antimicrobial Urinary Catheters: Overview and Advances

Anjum¹,

Singh²,

Lepoittevin

et al. 2017

Global Challenges

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Microbial burden associated with medical devices poses serious health challenges and is accountable for an increased number of deaths leading to enormous medical costs. Catheter‐associated urinary tract infections are the most common hospital‐acquired infections with enhanced patient morbidity. Quite often, catheter‐associated bacteriuria produces apparent adverse outcomes such as urosepsis and even death. Taking this into account, the methods to modify urinary catheters to control microbial infections with relevance to clinical drug resistance are systematically evaluated in this review. Technologies to restrict biofilm formation at initial stages by using functional nanomaterials are elucidated. The conventional methodology of using single therapeutic intervention for developing an antimicrobial catheter lacks clinically meaningful benefit. Therefore, catheter modification using naturally derived antimicrobials such as essential oils, curcumin, enzymes, and antimicrobial peptides in combination with synthetic antibiotics/nanoantibiotics is likely to exert sufficient inhibitory effect on uropathogens and is extensively discussed. Futuristic efforts in this area are projected here that demand clinical studies to address areas of uncertainty to avoid development of bacterial resistance to the new generation therapy with minimum discomfort to the patients.

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“…We have recently developed a reduction method of converting Ag nanospheres into nanorods [26], nanoplates [27], their antibacterial activity [28,29], an improved an easy synthetic route for silver nanoparticles in poly (diallyldimethylammonium chloride) (PDDA) [30], synthesis of gold/HPC hybrid nanocomposite [31], preparation of ZnO/ Ag nanocomposite [32] and comparison of nanosilver particles and nanosilver plates for the oxidation of ascorbic acid [33]. Regarding the role of green chemistry, we have successfully demonstrated that size, shape and the antibacterial activity gold nanoparticles by the reduction of Au 3? ions with bio-reductants Zizyphus mauritiana (ZM) largely depend on the nature of reducing agents, concentration and time of mixing of the reactants [34].…”

Section: Introductionmentioning

confidence: 99%

Zizyphus mauritiana extract-mediated green and rapid synthesis of gold nanoparticles and its antibacterial activity

Sadeghi

2015

J Nanostruct Chem

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In this study, we have used Zizyphus mauritiana (ZM) extracts and chloroauric acid (HAuCl 4) for synthesis of gold nanoparticles, with a particle size ranging from 20 to 40 nm. The ZM extract, acts both as reducing and stabilizing agent. UV-visible spectroscopy, X-ray diffraction (XRD), Fourier transform infra red spectroscopy (FTIR), transmission electron microscopy, scanning electron microscopy (SEM), and X-ray energy dispersive spectrophotometer were performed to ascertain the formation of Au-NPs. It was observed that the growths of Au-NPs are stopped within 25 min of reaction time. The synthesized Au-NPs were characterized by a peak at 535 nm in the UV-visible spectrum. XRD confirmed the crystalline nature of the nanoparticles of 27 nm size. The FTIR result clearly showed that the extracts containing OH as a functional group act in capping the nanoparticles synthesis. Antibacterial activities of Au-NPs were tested against the growth of Gram-positive (S. aureus) using SEM. Therefore, green synthesis of gold nanoparticles with ZM extract, is beneficial from its biological and medical applications.

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Preparation of ZnO/Ag nanocomposite and coating on polymers for anti-infection biomaterial application

Cited by 23 publications

References 35 publications

CdO-Fe₃O₄ nanocomposite with enhanced magnetic and photocatalytic properties

CdO-Fe₃O₄ nanocomposite with enhanced magnetic and photocatalytic properties

Biomodification Strategies for the Development of Antimicrobial Urinary Catheters: Overview and Advances

Zizyphus mauritiana extract-mediated green and rapid synthesis of gold nanoparticles and its antibacterial activity

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Preparation of ZnO/Ag nanocomposite and coating on polymers for anti-infection biomaterial application

Cited by 23 publications

References 35 publications

CdO-Fe3O4 nanocomposite with enhanced magnetic and photocatalytic properties

CdO-Fe3O4 nanocomposite with enhanced magnetic and photocatalytic properties

Biomodification Strategies for the Development of Antimicrobial Urinary Catheters: Overview and Advances

Zizyphus mauritiana extract-mediated green and rapid synthesis of gold nanoparticles and its antibacterial activity

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CdO-Fe₃O₄ nanocomposite with enhanced magnetic and photocatalytic properties

CdO-Fe₃O₄ nanocomposite with enhanced magnetic and photocatalytic properties