A porous aerogel nanocomposite of silver nanoparticles-functionalized cellulose nanofibrils for SERS detection and catalytic degradation of rhodamine B

RSC Advances ◽  
2015 ◽  
Vol 5 (108) ◽  
pp. 88915-88920 ◽  
Author(s):  
Soon Wei Chook ◽  
Chin Hua Chia ◽  
Chi Hoong Chan ◽  
Siew Xian Chin ◽  
Sarani Zakaria ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Hydrothermal Synthesis ◽  
Rhodamine B ◽  
Cellulose Nanofibrils ◽  
Catalytic Degradation ◽  
Sers Detection ◽  
Synthesis Approach

Herein, cellulose nanofibrils (CNFs) were functionalised with silver nanoparticles (AgNPs) via a green in situ hydrothermal synthesis approach. The produced nanocomposites were used for the detection and catalytic degradation of rhodamine B.

scholarly journals Characterization of Silver NanoparticleIn SituSynthesis on Porous Sericin Gel for Antibacterial Application

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Gang Tao ◽  
Lina Liu ◽  
Yejing Wang ◽  
Huaipu Chang ◽  
Ping Zhao ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Irradiation Time ◽  
Inhibition Zone ◽  
Antimicrobial Activities ◽  
Scanning Calorimetry ◽  
Structure And Property ◽  
Gram Positive Bacteria ◽  
Synthesis Approach

Sericin fromBombyx moricocoon has good hydrophilicity, reaction activity, biocompatibility, and biodegradability, which has shown great potentials for biomedical materials. Here, an ultraviolet light-assistedin situsynthesis approach is developed to immobilize silver nanoparticles on the surface of sericin gel. The amount of silver nanoparticles immobilized on the surface of sericin gel could be regulated by the irradiation time. The porous structure and property of sericin gel were not affected by the modification of AgNPs, as evidenced by the observation of scanning electron microscopy, X-ray diffractometry, and Fourier transform infrared spectroscopy. Differential scanning calorimetry analysis showed that the modification of AgNPs increased the thermal stability of sericin gel. The growth curve of bacteria and inhibition zone assays suggested that the sericin gel modified with AgNPs had good antimicrobial activities against both Gram-negative and Gram-positive bacteria. This novel sericin has shown a great potential for biomedical purpose.

In situ reduced silver nanoparticles embedded molecularly imprinted reusable sensor for selective and sensitive SERS detection of Bisphenol A

2018 ◽  
Vol 457 ◽  
pp. 323-331 ◽  
Author(s):  
Zewei Wang ◽  
Ruxia Yan ◽  
Shaowei Liao ◽  
Yanru Miao ◽  
Bo Zhang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Bisphenol A ◽  
Molecularly Imprinted ◽  
Sers Detection

Intuitive Label-Free SERS Detection of Bacteria Using Aptamer-Based in Situ Silver Nanoparticles Synthesis

2017 ◽  
Vol 89 (18) ◽  
pp. 9836-9842 ◽  
Author(s):  
Weicun Gao ◽  
Bo Li ◽  
Ruizhi Yao ◽  
Zhiping Li ◽  
Xiwen Wang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Label Free ◽  
Nanoparticles Synthesis ◽  
Sers Detection

In situ decoration of plasmonic silver nanoparticles on poly(vinylidene fluoride) membrane for versatile SERS detection

2019 ◽  
Vol 43 (18) ◽  
pp. 6965-6972
Author(s):  
Ruiyu Liu ◽  
Jia Tang ◽  
Hui Yang ◽  
Wei Jin ◽  
Mei Liu ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Vinylidene Fluoride ◽  
Pvdf Membrane ◽  
Surface Enhanced ◽  
Poly Vinylidene Fluoride ◽  
New Strategy ◽  
Surface Enhanced Raman ◽  
Sers Detection ◽  
Enhanced Raman Scattering

A new strategy based on a polymer sol was proposed for the in situ fabrication of a poly(vinylidene fluoride) (PVDF) membrane decorated with silver nanoparticles (AgNPs) for application in surface enhanced Raman scattering (SERS).

scholarly journals Sensitive SERS Detection of Melamine and Cyromazine in Raw Milk Using Aptamer-Based in Situ Silver Nanoparticles Synthesis

2021 ◽  
pp. 100266
Author(s):  
Haibo Xing ◽  
Bowen Zheng ◽  
Xinyue Li ◽  
Xu Dang ◽  
Hongbo Zhang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Raw Milk ◽  
Nanoparticles Synthesis ◽  
Sers Detection

Simultaneous SERS detection of illegal food additives rhodamine B and basic orange II based on Au nanorod-incorporated melamine foam

2021 ◽  
pp. 129741
Author(s):  
Yingying Sun ◽  
Wan Li ◽  
Liqing Zhao ◽  
Fengyong Li ◽  
Yunfei Xie ◽  
...  
Keyword(s):  
Rhodamine B ◽  
Food Additives ◽  
Orange Ii ◽  
Sers Detection ◽  
Melamine Foam

scholarly journals Silver Nanoparticles Functionalized by Fluorescein Isothiocyanate or Rhodamine B Isothiocyanate: Fluorescent and Plasmonic Materials

2021 ◽  
Vol 11 (6) ◽  
pp. 2472
Author(s):  
Ilaria Fratoddi ◽  
Chiara Battocchio ◽  
Giovanna Iucci ◽  
Daniele Catone ◽  
Antonella Cartoni ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Rhodamine B ◽  
Photoelectron Spectroscopy ◽  
Transient Absorption ◽  
Fluorescein Isothiocyanate ◽  
Dye Molecules ◽  
Chemical Surface ◽  
Vis Spectroscopy ◽  
Rhodamine B Isothiocyanate ◽  
Fluorescent Molecules

This paper presents the synthesis of silver nanoparticles (AgNPs) functionalized with fluorescent molecules, in particular with xanthene-based dyes, i.e., fluorescein isothiocyanate (FITC, λmax = 485 nm) and rhodamine B isothiocyanate (RITC, λmax = 555 nm). An in-depth characterization of the particle–dye systems, i.e., AgNPs–RITC and AgNPs–FITC, is presented to evaluate their chemical structure and optical properties due to the interaction between their plasmonic and absorption properties. UV–Vis spectroscopy and the dynamic light scattering (DLS) measurements confirmed the nanosize of the AgNPs–RITC and AgNPs–FITC. Synchrotron radiation X-ray photoelectron spectroscopy (SR-XPS) was used to study the chemical surface functionalization by structural characterization, confirming/examining the isothiocyanate–metal interaction. For AgNPs–RITC, in which the plasmonic and fluorescence peak are not superimposed, the transient dynamics of the dye fluorescence were also studied. Transient absorption measurements showed that by exciting the AgNPs–RITC sample at a wavelength corresponding to the AgNP plasmon resonance, it was possible to preferentially excite the RITC dye molecules attached to the surface of the NPs with respect to the free dye molecules in the solution. These results demonstrate how, by combining plasmonics and fluorescence, these AgNPs can be used as promising systems in biosensing and imaging applications.

scholarly journals Layer-by-Layer Spray-Coating of Cellulose Nanofibrils and Silver Nanoparticles for Hydrophilic Interfaces

2021 ◽  
Author(s):  
Qing Chen ◽  
Calvin J. Brett ◽  
Andrei Chumakov ◽  
Marc Gensch ◽  
Matthias Schwartzkopf ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Cellulose Nanofibrils ◽  
Spray Coating ◽  
Layer By Layer
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