Colorimetric detection of Cr3+ using tripolyphosphate modified gold nanoparticles in aqueous solutions

2012 ◽  
Vol 4 (5) ◽  
pp. 1259 ◽  
Author(s):  
Junwei Xin ◽  
Lijing Miao ◽  
Shougang Chen ◽  
Aiguo Wu
Keyword(s):  
Gold Nanoparticles ◽  
Aqueous Solutions ◽  
Colorimetric Detection

scholarly journals Selective and colorimetric detection of Ba2+ ions in aqueous solutions using 11-mercaptoundecylphosphonic acid functionalized gold nanoparticles

RSC Advances ◽  
2017 ◽  
Vol 7 (50) ◽  
pp. 31611-31618 ◽  
Author(s):  
Blanca A. García Grajeda ◽  
Samuel G. Soto Acosta ◽  
Sergio A. Aguila ◽  
Héctor Peinado Guevara ◽  
Marta E. Díaz-García ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Gold Nanoparticles ◽  
Aqueous Solutions ◽  
Colorimetric Detection ◽  
Colorimetric Method ◽  
Selective Detection ◽  
Functionalized Gold Nanoparticles

In this paper we describe a simple colorimetric method for the sensitive and selective detection of Ba2+ ions, using 11-mercaptoundecylphosphonic acid functionalized gold nanoparticles (AuNPs–MPA) in aqueous solution.

Preparation of gold nanoparticles using pyridine-formaldehyde as a reducing agent and its application in high sensitivity colorimetric detection of Pb2+

2019 ◽  
Vol 11 (34) ◽  
pp. 4362-4369 ◽  
Author(s):  
Liling Lei ◽  
Haimei Song ◽  
Junhong Zhao ◽  
Qingxiang Yang ◽  
Zhijun Chen
Keyword(s):  
Gold Nanoparticles ◽  
Aqueous Solutions ◽  
Colorimetric Detection ◽  
High Sensitivity ◽  
Colorimetric Sensor ◽  
Reducing Agent ◽  
New Method

A new method for preparing AuNPs has been successfully developed by using pyridine-formaldehyde as reducing agent. The AuNPs were used in colorimetric sensor for detection of Pb2+ in aqueous solutions.

scholarly journals CRISPR/Cas12a-mediated gold nanoparticle aggregation for colorimetric detection of SARS-CoV-2

2021 ◽  
Author(s):  
Yiren Cao ◽  
Jinjun Wu ◽  
Bo Pang ◽  
Hongquan Zhang ◽  
X. Chris Le
Keyword(s):  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Colorimetric Detection ◽  
Isothermal Amplification ◽  
Nanoparticle Aggregation ◽  
Cleavage Activity ◽  
Gold Nanoparticle Aggregation

The trans-cleavage activity of the target-activated CRISPR-Cas12a liberated an RNA crosslinker from a molecular transducer, which facilitated assembly of gold nanoparticles. Integration of the molecular transducer with isothermal amplification and...

Naked-eye colorimetric detection of HCV RNA mediated by a 5′ UTR-targeted antisense oligonucleotide and plasmonic gold nanoparticles

The Analyst ◽  
2021 ◽  
Author(s):  
Almas Shamaila Mohammed ◽  
Aniket Balapure ◽  
Mahammad Nanne Khaja ◽  
Ramakrishnan Ganesan ◽  
Jayati Ray Dutta
Keyword(s):  
Gold Nanoparticles ◽  
Antisense Oligonucleotide ◽  
Early Stage ◽  
Colorimetric Detection ◽  
Sensitive Detection ◽  
Clinical Samples ◽  
Hcv Rna ◽  
Naked Eye

An Au NP based facile strategy for the rapid, early-stage, and sensitive detection of HCV RNA in clinical samples which avoids thiol tagging to the antisense oligonucleotide and expensive infrastructure is presented.

scholarly journals Colorimetric detection of Cr3+ based on gold nanoparticles functionalized with 4-mercaptobenzoic acid

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhikun Zhang ◽  
Xiaojie Ye ◽  
Qingqing Liu ◽  
Yumin Liu ◽  
Runjing Liu
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Detection
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