Enzyme-free colorimetric detection of DNA by using gold nanoparticles and hybridization chain reaction amplification

P Liu, X Yang, S Sun, Q Wang, K Wang… - Analytical …, 2013 - ACS Publications
A novel, high sensitive, and specific DNA assay based on gold nanoparticle (AuNP)
colorimetric detection and hybridization chain reaction (HCR) amplification has been …

Gold nanoparticles with asymmetric polymerase chain reaction for colorimetric detection of DNA sequence

H Deng, Y Xu, Y Liu, Z Che, H Guo, S Shan… - Analytical …, 2012 - ACS Publications
We developed a novel strategy for rapid colorimetric analysis of a specific DNA sequence by
combining gold nanoparticles (AuNPs) with an asymmetric polymerase chain reaction (As …

[引用][C] Label‐Free Colorimetric Detection of Small Molecules Utilizing DNA Oligonucleotides and Silver Nanoparticles

X Xu, J Wang, F Yang, K Jiao, X Yang - Small, 2009 - Wiley Online Library
Since the use of DNA oligonucleotide–gold nanoparticle (AuNP) conjugates was pioneered
by Mirkin's group,[1] colorimetric assays based on DNA/AuNPs have been well developed in …

Colorimetric detection of DNA using unmodified metallic nanoparticles and peptide nucleic acid probes

R Kanjanawarut, X Su - Analytical chemistry, 2009 - ACS Publications
We have developed a colorimetric assay for DNA detection based on the aggregation of
unmodified metallic nanoparticles. Charge neutral peptide nucleic acids (PNA) are used as …

Functionalized gold nanoparticles for ultrasensitive DNA detection

LM Zanoli, R D'Agata, G Spoto - Analytical and bioanalytical chemistry, 2012 - Springer
A major challenge in the area of DNA detection is the development of rapid methods that do
not require polymerase chain reaction (PCR) amplification of the genetic sample. The PCR …

Gold nanoparticle-enabled real-time ligation chain reaction for ultrasensitive detection of DNA

W Shen, H Deng, Z Gao - Journal of the American Chemical …, 2012 - ACS Publications
A simple and ultrasensitive colorimetric DNA assay based on the detection of the product of
a ligation chain reaction (LCR) and the use of gold nanoparticles (AuNPs) as signal …

DNA sequence detection using selective fluorescence quenching of tagged oligonucleotide probes by gold nanoparticles

H Li, LJ Rothberg - Analytical chemistry, 2004 - ACS Publications
Simple, fast, economical, and sensitive detection of specific DNA sequences is crucial to
pathogen detection and biomedical research. We have designed a novel fluorescent assay …

Visual detection of single-nucleotide polymorphism with hairpin oligonucleotide-functionalized gold nanoparticles

Y He, K Zeng, AS Gurung, M Baloda, H Xu… - Analytical …, 2010 - ACS Publications
We report a simple, fast, and sensitive approach for visual detection of single-nucleotide
polymorphism (SNP) based on hairpin oligonucleotide-functionalized gold nanoparticle …

Optical detection of DNA hybridization based on fluorescence quenching of tagged oligonucleotide probes by gold nanoparticles

ZS Wu, JH Jiang, L Fu, GL Shen, RQ Yu - Analytical biochemistry, 2006 - Elsevier
A novel system for the detection of DNA hybridization in a homogeneous format is
developed. This method is based on fluorescence quenching by gold nanoparticles used as …

Hairpin DNA switch for ultrasensitive spectrophotometric detection of DNA hybridization based on gold nanoparticles and enzyme signal amplification

Y Zhang, Z Tang, J Wang, H Wu, A Maham… - Analytical …, 2010 - ACS Publications
A novel DNA detection platform based on a hairpin DNA switch, nanoparticles, and enzyme
signal amplification for ultrasensitive detection of DNA hybridization has been developed in …