Optical and electrochemical DNA nanobiosensors

JEN Dolatabadi, O Mashinchian, B Ayoubi… - TrAC Trends in …, 2011 - Elsevier
In the past two decades, nanoscale advanced materials have been explored for biosensing
molecules, so new horizons have opened up for identifying and quantifying biomolecules …

Homogeneous analysis: label‐free and substrate‐free aptasensors

B Li, S Dong, E Wang - Chemistry–An Asian Journal, 2010 - Wiley Online Library
Abstract In this Focus Review, we introduce a kind of “label‐free” and “substrate‐free”(LFSF)
aptasensor that carries out the whole sensing process in a homogeneous solution. This …

QDs-DNA nanosensor for the detection of hepatitis B virus DNA and the single-base mutants

X Wang, X Lou, Y Wang, Q Guo, Z Fang… - Biosensors and …, 2010 - Elsevier
We report here a quantum dots-DNA (QDs-DNA) nanosensor based on fluorescence
resonance energy transfer (FRET) for the detection of the target DNA and single mismatch in …

Ultrasensitive colorimetric aptasensor for Hg2+ detection using Exo-III assisted target recycling amplification and unmodified AuNPs as indicators

AG Memon, Y Xing, X Zhou, R Wang, L Liu… - Journal of hazardous …, 2020 - Elsevier
Facile and ultrasensitive detection of Hg 2+ in water environment remains challenging.
Exonuclease III (Exo-III)-assisted target recycling is one of the most popular amplification …

One-pot synthesis of fluorescent oligonucleotide Ag nanoclusters for specific and sensitive detection of DNA

GY Lan, WY Chen, HT Chang - Biosensors and Bioelectronics, 2011 - Elsevier
In this study, we prepared fluorescent, functional oligonucleotide-stabilized silver
nanoclusters (FFDNA-Ag NCs) through one-pot synthesis and then employed them as …

Au NPs-enhanced surface plasmon resonance for sensitive detection of mercury (II) ions

L Wang, T Li, Y Du, C Chen, B Li, M Zhou… - Biosensors and …, 2010 - Elsevier
We reported a sensitive surface plasmon resonance (SPR) sensor for the detection of Hg2+
in aqueous solution by using a thymine (T)-rich, mercury-specific oligonucleotide (MSO) …

A distance-dependent metal-enhanced fluorescence sensing platform based on molecular beacon design

Z Zhou, H Huang, Y Chen, F Liu, CZ Huang… - Biosensors and …, 2014 - Elsevier
A new metal-enhanced fluorescence (MEF) based platform was developed on the basis of
distance-dependent fluorescence quenching-enhancement effect, which combined the …

Utilization of unmodified gold nanoparticles for label-free detection of mercury (II): Insight into rational design of mercury-specific oligonucleotides

AG Memon, X Zhou, J Liu, R Wang, L Liu, B Yu… - Journal of hazardous …, 2017 - Elsevier
Colorimetric detection of mercury (II) with the use of DNA oligonucleotides and unmodified
gold nanoparticles (AuNPs) as indicators has been extensively studied. This study provides …

Label-free colorimetric nanosensor with improved sensitivity for Pb2 + in water by using a truncated 8–17 DNAzyme

AG Memon, X Zhou, Y Xing, R Wang, L Liu… - … Science & Engineering, 2019 - Springer
Water pollution accidents, such as the Flint water crisis in the United States, caused by lead
contamination have raised concern on the safety of drinking water distribution systems …

Fluorescent Base Analogue Reveals T-HgII-T Base Pairs Have High Kinetic Stabilities That Perturb DNA Metabolism

OP Schmidt, G Mata, NW Luedtke - Journal of the American …, 2016 - ACS Publications
The thymidine analogue DMA T was used for the first fluorescence-based study of direct, site-
specific metal binding reactions involving unmodified nucleobases in duplex DNA. The …