Homogeneous, unmodified gold nanoparticle-based colorimetric assay of hydrogen peroxide

2007 ◽  
Vol 584 (1) ◽  
pp. 122-128 ◽  
Author(s):  
Zai-Sheng Wu ◽  
Song-Bai Zhang ◽  
Meng-Meng Guo ◽  
Chen-Rui Chen ◽  
Guo-Li Shen ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Gold Nanoparticle ◽  
Colorimetric Assay

Gold nanoparticle-based colorimetric assay for cancer diagnosis

2010 ◽  
Vol 25 (8) ◽  
pp. 1869-1874 ◽  
Author(s):  
Jeong-Hun Kang ◽  
Yoji Asami ◽  
Masaharu Murata ◽  
Hirotaro Kitazaki ◽  
Noriaki Sadanaga ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Cancer Diagnosis ◽  
Colorimetric Assay

Gold nanoparticle-composite nanofibers for enzymatic electrochemical sensing of hydrogen peroxide

The Analyst ◽  
2013 ◽  
Vol 138 (17) ◽  
pp. 5025 ◽  
Author(s):  
Anitha Devadoss ◽  
Hyungkyu Han ◽  
Taeseup Song ◽  
Young-Pil Kim ◽  
Ungyu Paik
Keyword(s):  
Hydrogen Peroxide ◽  
Gold Nanoparticle ◽  
Composite Nanofibers ◽  
Electrochemical Sensing

Direct Electrochemistry of Cytochrome c on Graphene Aerogel/Gold Nanoparticle Hybrid for Hydrogen Peroxide Biosensing

2015 ◽  
Vol 9 (5) ◽  
pp. 330-334 ◽  
Author(s):  
Bojun Wang ◽  
Shancheng Yan ◽  
Zixia Lin ◽  
Yi Shi ◽  
Dong Hu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Cytochrome C ◽  
Gold Nanoparticle ◽  
Direct Electrochemistry ◽  
Graphene Aerogel

Multiplex Detection of Viral DNAs in Blood by Colorimetrically Identifying Polymerase Chain Reaction Amplicons with Serial Invasive Reaction Assisted Gold Nanoparticle Probes Assembling

2020 ◽  
Vol 20 (10) ◽  
pp. 6140-6147
Author(s):  
Yi Ma ◽  
Chunyan Gong ◽  
Xiemin Qi ◽  
Bingjie Zou ◽  
Qinxin Song ◽  
...  
Keyword(s):  
Real Time ◽  
Gold Nanoparticle ◽  
Real Time Pcr ◽  
Pathogen Detection ◽  
Colorimetric Assay ◽  
Treponema Pallidum ◽  
Multiplex Detection ◽  
Clinical Practices ◽  
Resource Limited ◽  
Viral Dnas

Detection of blood-borne pathogenic viruses is essential for blood transfusion, and has great significance for epidemiology, as well as clinical practices. Common blood-borne viruses causing infectious diseases include Hepatitis B virus (HBV), Hepatitis C virus (HCV), Human immunodeficiency virus (HIV) and Treponema pallidum (TP). Therefore, multiplex detection of these viruses is more in the line with the needs of clinical testing. Although real-time PCR-based multiplex nucleic acid testing (NAT) was developed for pathogen detection, however, the requirement of multichannel realtime PCR machine increases the instrumental cost and is not suitable for use in resource-limited areas. In this study, we proposed a multiplex and colorimetric assay for detecting viral nucleic acids in blood by using serial invasive reaction assisted gold nanoparticle (AuNPs) probes assembling to identify multiplex PCR amplicons. As low as 2 copies per reaction of HIV and TP targets, and 20 copies per reaction of HBV and HCV targets can be detected. The results can be observed by naked eyes; thus, just a standard PCR machine is required. In addition, the hairpin probe and the AuNPs for signal read out are universal for all the targets, reducing the detection cost. About 20 DNA samples remaining after clinical HBV testing were successfully detected, and the results were consistent with that of commercially available real-time PCR based kit, indicating that this method has a potential for clinical applications.

Oxidation-triggered aggregation of gold nanoparticles for naked-eye detection of hydrogen peroxide

2016 ◽  
Vol 52 (17) ◽  
pp. 3508-3511 ◽  
Author(s):  
Shaojue Wu ◽  
Si Yu Tan ◽  
Chung Yen Ang ◽  
Zhong Luo ◽  
Yanli Zhao
Keyword(s):  
Hydrogen Peroxide ◽  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Eye Detection ◽  
Surface Hydrophilicity ◽  
Naked Eye ◽  
Naked Eye Detection

A gold nanoparticle-based platform for naked-eye detection of H2O2 was realized by changing the surface hydrophilicity.

Sign in / Sign up

Export Citation Format

Share Document