Fabrication of silver nanoplates using Nephelium lappaceum (Rambutan) peel: A sustainable approach

2015 ◽  
Vol 211 ◽  
pp. 476-480 ◽  
Author(s):  
Brajesh Kumar ◽  
Kumari Smita ◽  
Luis Cumbal ◽  
Yolanda Angulo
2019 ◽  
Vol 29 (3) ◽  
Author(s):  
Mai Ngọc Tuan Anh

Silver nanoplates (SNPs) having different size were synthesized by a seed-mediated method. The seeds -silver nanoparticles with 4 – 6 nm diameters were synthesized first by reducing silver nitrate with sodium borohydride in the present of Trisodium Citrate and Hydrogen peroxide. Then these seeds were developed by continue reducing Ag\(^+\) ions with various amount of L-Ascorbic acid to form SNPs. Our analysis showed that the concentratrion of L-Ascorbic acid, a secondary reducing agent, played an important role to form SNPs. In addition, the size and in-plane dipole plasmon resonance wavelenght of silver nanoplates were increased when the concentration of added silver nitrate increased. The characterization of SNPs were studied by UV-Vis, FE-SEM, EDS and TEM methods.


2018 ◽  
Vol 19 (1&2) ◽  
pp. 217-222
Author(s):  
Manjunath J. Shetty ◽  
◽  
P.R. Geethalekshmi ◽  
C. Mini ◽  
Vijayaraghava Kumar ◽  
...  

2021 ◽  
Vol 139 ◽  
pp. 106989
Author(s):  
Wencai Bai ◽  
Wenzhi Qin ◽  
Duo Tang ◽  
Faming Ji ◽  
Huisan Chen ◽  
...  

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Pavel Malakhovsky ◽  
Dmitry Murausky ◽  
Dmitry Guzatov ◽  
Sergey Gaponenko ◽  
Mikhail Artemyev

Abstract We examined systematically how self-assembled monolayers (SAMs) of different mercaptoacids affect the spectral shift of the localized surface plasmon resonance in silver nanoplates and nanospheres. We observed a clear trend in the magnitude of a redshift with a molecular length or the SAM thickness within a homologous series of aliphatic mercaptoacids: the thicker shell the stronger the red shift. Using classic Mie theory for plasmonic core-dielectric shell spheres and oblate spheroids we developed the method for determination of a pseudo-refractive index in SAM of different molecules and obtained a good correlation with the reference refractive indices for bulk long-chain aliphatic acids, but only in case of silver nanoplates. Calculations for silver core–shell nanospheres gave overestimated values of refractive index perhaps due to restrictions of Mie theory on the minimum particle size.


RSC Advances ◽  
2016 ◽  
Vol 6 (98) ◽  
pp. 95768-95773 ◽  
Author(s):  
Young Min Park ◽  
Byung Gon Lee ◽  
Jong-Il Weon ◽  
Mun Ho Kim

A coordination-based strategy was employed to produce Ag nanoplates with high aspect ratios. Ag nanoplates were synthesized in the presence of acetonitrile, which served both as the co-solvent and as the ligand to form complexes with the Ag+ ions.


ACS Nano ◽  
2007 ◽  
Vol 1 (5) ◽  
pp. 429-439 ◽  
Author(s):  
Jianping Xie ◽  
Jim Yang Lee ◽  
Daniel I. C. Wang ◽  
Yen Peng Ting

2014 ◽  
Vol 49 (13) ◽  
pp. 4453-4460 ◽  
Author(s):  
Ivana Vukoje ◽  
Vesna Lazić ◽  
Vesna Vodnik ◽  
Miodrag Mitrić ◽  
Bojan Jokić ◽  
...  

NANO ◽  
2021 ◽  
Vol 16 (04) ◽  
pp. 2150046
Author(s):  
Qingqing Cai ◽  
Li Zhang ◽  
Ling Li ◽  
Juan Tan ◽  
Shiyue Wu ◽  
...  

A new colorimetric method for the detection of chemotherapeutic drug 6-mercaptopurine (6-MP) is developed based on controlling localized surface plasmon resonance (LSPR) of triangular silver nanoplates (AgNPs). The triangular AgNPs can be etched by trace amount of Cl− and transformed to a disc-like shape, accompanied by a blueshift of the corresponding LSPR absorption band. With the protective effect of 6-MP, the AgNPs are hardly or partly to be etched by Cl−, resulting in a reversed shift of LSPR. Based on a linear relationship between LSPR wavelength change and the concentration of 6-MP, a fast, visual and selective method for 6-MP assay is established. This method has been successfully applied to the detection of 6-MP in tablets.


Sign in / Sign up

Export Citation Format

Share Document