Fluorescent and colorimetric sensors for detection of lead, cadmium, and mercury ions

HN Kim, WX Ren, JS Kim, J Yoon - Chemical Society Reviews, 2012 - pubs.rsc.org
Exposure to even very low levels of lead, cadmium, and mercury ions is known to cause
neurological, reproductive, cardiovascular, and developmental disorders, which are more …

Size and shape dependent second order nonlinear optical properties of nanomaterials and their application in biological and chemical sensing

PC Ray - Chemical reviews, 2010 - ACS Publications
The development of nonlinear optical (NLO) materials has been driven by a multitude of
important technological applications that can be realized if suitable materials are available …

A Smart DNAzyme–MnO2 Nanosystem for Efficient Gene Silencing

H Fan, Z Zhao, G Yan, X Zhang, C Yang… - Angewandte …, 2015 - Wiley Online Library
DNAzymes hold promise for gene‐silencing therapy, but the lack of sufficient cofactors in the
cell cytoplasm, poor membrane permeability, and poor biostability have limited the use of …

DNAzyme-triggered visual and ratiometric electrochemiluminescence dual-readout assay for Pb (II) based on an assembled paper device

Y Zhang, J Xu, S Zhou, L Zhu, X Lv, J Zhang… - Analytical …, 2020 - ACS Publications
Currently, portable, low-cost, and easy to operate on-chip analytical units are urgently
demanded to meet the requirement for point-of-care testing in resource-limited regions …

Graphene–DNAzyme Based Biosensor for Amplified Fluorescence “Turn-On” Detection of Pb2+ with a High Selectivity

XH Zhao, RM Kong, XB Zhang, HM Meng… - Analytical …, 2011 - ACS Publications
On the basis of the remarkable difference in affinity of graphene (GO) with ssDNA containing
a different number of bases in length, we for the first time report a GO–DNAzyme based …

A lead (II)-driven DNA molecular device for turn-on fluorescence detection of lead (II) ion with high selectivity and sensitivity

T Li, S Dong, E Wang - Journal of the American Chemical Society, 2010 - ACS Publications
A Pb2+-driven DNA molecular device which is constructed based on a DNA duplex−
quadruplex exchange is utilized for the highly selective and sensitive detection of Pb2+. The …

Metal ion sensors based on DNAzymes and related DNA molecules

XB Zhang, RM Kong, Y Lu - Annual review of analytical …, 2011 - annualreviews.org
Metal ion sensors are an important yet challenging field in analytical chemistry. Despite
much effort, only a limited number of metal ion sensors are available for practical use …

Lead(II)-Induced Allosteric G-Quadruplex DNAzyme as a Colorimetric and Chemiluminescence Sensor for Highly Sensitive and Selective Pb2+ Detection

T Li, E Wang, S Dong - Analytical chemistry, 2010 - ACS Publications
The lead ion (Pb2+) has been proven to induce a conformational change of K+-stabilized G-
quadruplex DNAzyme and inhibit the peroxidase-like activity [Li, T.; Wang, E.; Dong, SJ Am …

Impedimetric Immobilized DNA-Based Sensor for Simultaneous Detection of Pb2+, Ag+, and Hg2+

Z Lin, X Li, HB Kraatz - Analytical chemistry, 2011 - ACS Publications
An unlabeled immobilized DNA-based sensor was reported for simultaneous detection of
Pb2+, Ag+, and Hg2+ by electrochemical impedance spectroscopy (EIS) with [Fe (CN) 6] 4 …

Nucleic acid-based fluorescent probes and their analytical potential

B Juskowiak - Analytical and bioanalytical chemistry, 2011 - Springer
It is well known that nucleic acids play an essential role in living organisms because they
store and transmit genetic information and use that information to direct the synthesis of …