A Label-Free Gold-Nanoparticle-Based SERS Assay for Direct Cyanide Detection at the Parts-per-Trillion Level

2011 ◽  
Vol 17 (30) ◽  
pp. 8445-8451 ◽  
Author(s):  
Dulal Senapati ◽  
Samuel S. R. Dasary ◽  
Anant K. Singh ◽  
Tapas Senapati ◽  
Hongtao Yu ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Label Free ◽  
Free Gold

A gold nanoparticle-based label free colorimetric aptasensor for adenosine deaminase detection and inhibition assay

The Analyst ◽  
2015 ◽  
Vol 140 (5) ◽  
pp. 1572-1577 ◽  
Author(s):  
Fen Cheng ◽  
Yue He ◽  
Xiao-Jing Xing ◽  
Dai-Di Tan ◽  
Yi Lin ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Adenosine Deaminase ◽  
Gold Nanoparticle ◽  
Label Free ◽  
Inhibition Assay ◽  
Free Gold ◽  
Novel Strategy ◽  
Colorimetric Aptasensor

A novel strategy for the fabrication of a colorimetric aptasensor using label free gold nanoparticles (AuNPs) is proposed. The aptasensor consists of adenosine (AD) aptamer, AD and AuNPs. The strategy has been employed for the assay of adenosine deaminase (ADA) activity.

Analyte-triggered autocatalytic amplification combined with gold nanoparticle probes for colorimetric detection of heavy-metal ions

2017 ◽  
Vol 53 (54) ◽  
pp. 7477-7480 ◽  
Author(s):  
Juanhua Yang ◽  
Yun Zhang ◽  
Lang Zhang ◽  
Huili Wang ◽  
Jinfang Nie ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Gold Nanoparticles ◽  
Metal Ions ◽  
Gold Nanoparticle ◽  
Heavy Metal Ions ◽  
Colorimetric Detection ◽  
Detection Limits ◽  
Label Free ◽  
Nanoparticle Probes ◽  
Free Gold

This work reports a new nanosensor based on analyte-triggered autocatalytic amplification and label-free gold nanoparticles for the colorimetric detection of Hg2+, Cu2+and Ag+with detection limits less than 3 nM.

scholarly journals Development of label-free gold nanoparticle based rapid colorimetric assay for clinical/point-of-care screening of cervical cancer

2020 ◽  
Vol 2 (12) ◽  
pp. 5737-5745
Author(s):  
Tejaswini Appidi ◽  
Sushma V. Mudigunda ◽  
Suseela Kodandapani ◽  
Aravind Kumar Rengan
Keyword(s):  
Cervical Cancer ◽  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Colorimetric Assay ◽  
Point Of Care ◽  
Colorimetric Detection ◽  
Label Free ◽  
Free Gold ◽  
Clinical Point

“C-ColAur” technique for colorimetric detection of cervical cancer by in situ formation of gold nanoparticles.

Label-free gold nanoparticle-based sensing of cysteine: New peculiarities and prospects

2018 ◽  
Vol 260 ◽  
pp. 953-961 ◽  
Author(s):  
Vladimir V. Apyari ◽  
Viktoria V. Arkhipova ◽  
Andrei I. Isachenko ◽  
Pavel A. Volkov ◽  
Stanislava G. Dmitrienko ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Label Free ◽  
Free Gold

Label-free electrochemical immunosensor based on gold nanoparticle/polyethyleneimine/reduced graphene oxide nanocomposite for the ultrasensitive detection of cancer biomarker matrix metalloproteinase-1

The Analyst ◽  
2021 ◽  
Author(s):  
Xinke Liu ◽  
Lu-Yin Lin ◽  
Fu-Yen Tseng ◽  
Yu-Cheng Tan ◽  
Jian Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Matrix Metalloproteinase ◽  
Gold Nanoparticle ◽  
Reduced Graphene Oxide ◽  
Electrochemical Immunosensor ◽  
Ultrasensitive Detection ◽  
Label Free ◽  
Matrix Metalloproteinase 1 ◽  
Reduced Graphene ◽  
P Matrix

Matrix metalloproteinase-1 (MMP-1) is associated with many types of cancers, including oral, colorectal, and brain cancers. This paper describes the fabrication of an MMP-1 immunosensor based on a gold nanoparticle/polyethyleneimine/reduced...

A Fluorescence Sensor for Lead (II) Ions Determination Based on Label-Free Gold Nanoparticles (GNPs)-DNAzyme Using Time-Gated Mode in Aqueous Solution

2016 ◽  
Vol 27 (2) ◽  
pp. 643-649 ◽  
Author(s):  
Xiao-Yu Wang ◽  
Cheng-Gang Niu ◽  
Li-Juan Guo ◽  
Liu-Yin Hu ◽  
Sheng-Quan Wu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Gold Nanoparticles ◽  
Fluorescence Sensor ◽  
Label Free ◽  
Free Gold

A highly sensitive and label-free electrochemiluminescence immunosensor for beta 2-microglobulin

2017 ◽  
Vol 9 (17) ◽  
pp. 2570-2577 ◽  
Author(s):  
Mohammad Rizwan ◽  
Noor Faizah Mohd-Naim ◽  
Natasha Ann Keasberry ◽  
Minhaz Uddin Ahmed
Keyword(s):  
Quantum Dot ◽  
Cadmium Selenide ◽  
Gold Nanoparticle ◽  
Label Free ◽  
Screen Printed Electrode ◽  
Highly Sensitive ◽  
Beta 2 ◽  
Beta 2 Microglobulin ◽  
First Time ◽  
Screen Printed

A highly sensitive and label-free electrochemiluminescence (ECL) immunosensor was fabricated for the detection of β-2-microglobulin (β2M) based on a gold nanoparticle-doped@carbon nano-onion chitosan nanocomposite modified cadmium selenide quantum dot screen-printed electrode (QDs-SPE/AuNPs@CNOs-CS) for the first time.

Sign in / Sign up

Export Citation Format

Share Document