Bio-compatibility, surface &amp; chemical characterization of glow discharge plasma modified ZnO nanocomposite polycarbonate

Bagra, Bhawna; Pimpliskar, Prashant; Agrawal, Narendra Kumar

doi:10.1063/1.4872539

Cited by 7 publications

(5 citation statements)

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“…Secondly, abundant available morphologies of ZnO nanostructures are in favor of the combination with noble metals to improve the SERS activity. Additionally, the material’s many advantages, including bio-compatibility, tunable photoelectric properties, high chemical stability, superhydrophobicity, and photocatalytic self-cleaning effect [ 40 , 51 , 52 ] can be coordinated with the SERS effect on the ZnO nanostructure substrate to achieve versatility and multifunctionality.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Semiconductor ZnO Nanostructures for Versatile SERS Application

Yang

et al. 2017

Nanomaterials

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Since the initial discovery of surface-enhanced Raman scattering (SERS) in the 1970s, it has exhibited a huge potential application in many fields due to its outstanding advantages. Since the ultra-sensitive noble metallic nanostructures have increasingly exposed themselves as having some problems during application, semiconductors have been gradually exploited as one of the critical SERS substrate materials due to their distinctive advantages when compared with noble metals. ZnO is one of the most representative metallic oxide semiconductors with an abundant reserve, various and cost-effective fabrication techniques, as well as special physical and chemical properties. Thanks to the varied morphologies, size-dependent exciton, good chemical stability, a tunable band gap, carrier concentration, and stoichiometry, ZnO nanostructures have the potential to be exploited as SERS substrates. Moreover, other distinctive properties possessed by ZnO such as biocompatibility, photocatcalysis and self-cleaning, and gas- and chemo-sensitivity can be synergistically integrated and exerted with SERS activity to realize the multifunctional potential of ZnO substrates. In this review, we discuss the inevitable development trend of exploiting the potential semiconductor ZnO as a SERS substrate. After clarifying the root cause of the great disparity between the enhancement factor (EF) of noble metals and that of ZnO nanostructures, two specific methods are put forward to improve the SERS activity of ZnO, namely: elemental doping and combination of ZnO with noble metals. Then, we introduce a distinctive advantage of ZnO as SERS substrate and illustrate the necessity of reporting a meaningful average EF. We also summarize some fabrication methods for ZnO nanostructures with varied dimensions (0–3 dimensions). Finally, we present an overview of ZnO nanostructures for the versatile SERS application.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Semiconductor ZnO Nanostructures for Versatile SERS Application

Yang

et al. 2017

Nanomaterials

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“…Conversion of these metals to nano size materials is an efficient and reliable tool for enhancing their optical, physical, mechanical, chemical and catalytical properties, which opens up new fields of vast range applications in composite material fabrication, gas sensing, nonlinear optical devices, fuel cells, magnetic fluid and space science technology etc. [9][10][11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…Along with these advance applications, Al NPs have also revealed antimicrobial property [24] and show interaction with human epidermal keratinocytes shows variations in cytokine levels [25]. Al NPs can be used in biomaterials [13] . Besides these above mentioned specific methods, these NPs can also be synthesized by using ball milling process, sol-gel method, chemical vapor deposition (CVD) and thermal spray method etc.…”

Section: Introductionmentioning

confidence: 99%

Synthesis Of Al And Ag Nanoparticles Through Ultra-sonic Dissociation Of Thermal Evaporation Deposited Thin Films For Promising Clinical Applications As Polymer Nanocomposite

Agrawal¹,

Agarwal²,

Bhatia³

et al. 2015

Adv. Mater. Lett.

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Nanoparticles (NPs) having well-defined shape, size and clean surface serve as ideal model system to investigate surface/interfacial reactions. Ag and Al NPs are receiving great interest due to their wide applications in bio-medical field, aerospace and space technology as combustible additives in propellants and hydrogen generation. Hence, in this study, we have synthesized Ag and Al NPs using an innovative approach of ultra-sonic dissociation of thin films. Phase and particle size distributions of the Ag and Al NPs have been determined by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Thin film dissociation/dissolution mechanism, hence conversion into NPs has been characterized by SEM-scanning electron microscope. EDXA & ICPMS have been performed for chemical analysis of NPs. Optical properties have been characterized by UV-Vis and PL spectroscopy. These NPs have also been investigated for their anti-bacterial activity against Escherichia coli bacteria. To the best of our knowledge, this is the first time when NPs has been synthesized by ultra-sonic dissociation of thin films. As an application, these NPs were used further for synthesis of nanocomposite polymer membranes, which show excellent activity against bio film formation.

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“…Metallic nanoparticles synthesized traditionally by wet chemical synthesis where the chemicals used are often toxic and flammable 1 . Noble metal nanoparticles are widely used in many biological applications 2 . So, there is a growing need to develop environmentally friendly processes for nanoparticle synthesis without using toxic chemicals.…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of Ag Nano Composite Polymer Membranes by Glow Discharge Plasma

Agrawal¹,

Agarwal²,

Vijay³

et al. 2013

JMSSE

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Nano particles of silver has been synthesized by Mangifera indica (mango) plant extract and characterized using UV-Vis spectrophotometer, FTIR (Fourier Transform Infrared Spectroscopy), XRD (X-ray Diffraction) and SEM (Scanning electron microscope). These nanoparticles were used as nano composites for polymer membranes. Using solution casting and spin coating method, Ag nano composite polymeric membranes in the range of 20–40 micron were prepared. Helium ion glow discharge plasma treatment was done for the membranes. Surface modifications for membranes were characterized before and after plasma to make comparative study by different technique such as optical microscopy, SEM- Scanning electron microscope. Results are discussed in this paper.

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Bio-compatibility, surface & chemical characterization of glow discharge plasma modified ZnO nanocomposite polycarbonate

Cited by 7 publications

References 0 publications

Fabrication of Semiconductor ZnO Nanostructures for Versatile SERS Application

Fabrication of Semiconductor ZnO Nanostructures for Versatile SERS Application

Synthesis Of Al And Ag Nanoparticles Through Ultra-sonic Dissociation Of Thermal Evaporation Deposited Thin Films For Promising Clinical Applications As Polymer Nanocomposite

Surface Modification of Ag Nano Composite Polymer Membranes by Glow Discharge Plasma

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