A novel electrostatic drive strategy to prepare glutathione-capped gold nanoclusters embedded quaternized cellulose membranes fluorescent colorimetric sensor for …

X Jiang, H Zhang, C Yang, J Xia, G Liu, X Luo - Sensors and Actuators B …, 2022 - Elsevier
It is necessary to establish a fast and accurate sensor strip for detecting Pb (II) and Hg (II)
ions in water. Herein, a novel electrostatic drive strategy to prepare glutathione-capped gold …

Asymmetric nanochannel–ionchannel hybrid for ultrasensitive and label-free detection of copper ions in blood

XP Zhao, SS Wang, MR Younis, XH Xia… - Analytical …, 2018 - ACS Publications
Nanochannel/nanopre based analysis methods have attracted increasing interest in recent
years due to their exquisite ability to reveal changes in molecular volume. In this work, a …

Colorimetric sensing of silver ions based on glutathione-mediated MnO2 nanosheets

L He, Y Lu, F Wang, W Jing, Y Chen, Y Liu - Sensors and Actuators B …, 2018 - Elsevier
We described a rapid and highly sensitive colorimetric method for the detection and
quantification of silver ions employing glutathione (GSH)-mediated MnO 2 nanosheets as an …

Ultra-sensitive detection of multiplexed heavy metal ions by MOF-derived carbon film encapsulating BiCu alloy nanoparticles in potable electrochemical sensing …

H Yin, H He, T Li, M Hu, W Huang, Z Wang, X Yang… - Analytica Chimica …, 2023 - Elsevier
In this work, we report the development of a new type of highly active and stable Bi-based
electrode material, ie, BiCu metal-organic frames (MOF) derived carbon film (CF) …

Smartphone-Based Colorimetric Microfluidic Paper-Based Analytical Device for On-Site Detection of Calcium Ions in Milk Samples

DT Ajayi, S Teepoo - Analytical Letters, 2024 - Taylor & Francis
Milk is a major dietary source of calcium; thus, accurate and precise quantification of calcium
in milk and other dairy products is necessary for quality control. Conventional instrumental …

A paper-based microfluidic analytical device combined with home-made SPE column for the colorimetric determination of copper (II) ion

Q Wu, J He, H Meng, Y Wang, Y Zhang, H Li, L Feng - Talanta, 2019 - Elsevier
Monitoring of copper (II) ion is critical for water safety. Herein, a solid phase extraction (SPE)
column filled with home-made sulfonated PS-DVB microspheres was adopted to eliminate …

Exploring a new rapid colorimetric detection method of Cu2+ with high sensitivity and selectivity

LJ Miao, JW Xin, ZY Shen, YJ Zhang, HY Wang… - Sensors and Actuators B …, 2013 - Elsevier
In this study, we propose a new rapid colorimetric detection method of Cu2+ with high
sensitivity and selectivity utilizing starch-stabilized silver nanoparticles (AgNPs), which are …

[HTML][HTML] Visual Cu2+ Detection of Gold-Nanoparticle Probes and its Employment for Cu2+ Tracing in Circuit System

TY Ou, CF Lo, KY Kuo, YP Lin, SY Chen… - Nanoscale Research …, 2022 - Springer
Highly sensitive, simple and reliable colorimetric probe for Cu2+-ion detection was
visualized with the L-cysteine functionalized gold nanoparticle (LS-AuNP) probes. The …

[HTML][HTML] Design and fabrication of flexible copper sensor decorated with bismuth micro/nanodentrites to detect lead and cadmium in noninvasive samples of sweat

AM de Campos, RR Silva, ML Calegaro… - Chemosensors, 2022 - mdpi.com
The use of economic methods to design and fabricate flexible copper sensors decorated
with bismuth micro/nanodentrites for the detection of lead and cadmium in sweat is …

A colorimetric assay for ultrasensitive detection of copper (II) ions based on pH-dependent formation of heavily doped molybdenum oxide nanosheets

M Li, X Huang, H Yu - Materials Science and Engineering: C, 2019 - Elsevier
Here we report a simple and low-cost colorimetric assay for ultrasensitive detection of
copper (II) ions (Cu 2+) based on pH-dependent formation of plasmonic MoO 3-x …