Gold nanoparticles as exquisite colorimetric transducers for water pollutant detection

HH Cho, DH Jung, JH Heo, CY Lee… - … Applied Materials & …, 2023 - ACS Publications
Gold nanoparticles (AuNPs) are useful nanomaterials as transducers for colorimetric
sensors because of their high extinction coefficient and ability to change color depending on …

Fabrication, flow control, and applications of microfluidic paper-based analytical devices

H Lim, AT Jafry, J Lee - Molecules, 2019 - mdpi.com
Paper-based microfluidic devices have advanced significantly in recent years as they are
affordable, automated with capillary action, portable, and biodegradable diagnostic …

Multifunctional rotational active valve for flow control in paper-based microfluidic devices

G Hussain, AT Jafry, S Malik, SF Shah, S Nishat… - Sensors and Actuators B …, 2023 - Elsevier
In paper-based microfluidics, the development of a robust and multi-role valve mechanism is
important for flow control to perform multistep biochemical assays. The previous valve …

Portable Au Nanoparticle-Based Colorimetric Sensor Strip for Rapid On-Site Detection of Cd2+ Ions in Potable Water

HH Cho, JH Heo, DH Jung, SH Kim, SJ Suh, KH Han… - BioChip Journal, 2021 - Springer
Simple, rapid, and instrument-free detection of cadmium ions (Cd2+) with a portable device
is essential to prevent the contamination of potable water. Herein, we propose a simple, fast …

Exceptional Mechanical Properties of Phase-Separation-Free Mo3Se3-Chain-Reinforced Hydrogel Prepared by Polymer Wrapping Process

SH Kim, S Oh, S Chae, JW Lee, KH Choi, KE Lee… - Nano Letters, 2019 - ACS Publications
As Mo3Se3–chain nanowires have dimensions comparable to those of natural hydrogel
chains (molecular-level diameters of∼ 0.6 nm and lengths of several micrometers) and …

Development of a highly sensitive lateral flow strip device for nucleic acid detection using molecular beacons

Y Moon, H Moon, J Chang, HD Kim, JH Lee… - Frontiers in …, 2022 - frontiersin.org
Extensive research is focused on the development of highly sensitive, rapid on-site
diagnostic devices. The lateral flow strip (LFS) is a paper-based point-of-care diagnostic …

Performance improvement of a glucose sensor based on fiber optic localized surface plasmon resonance and anti-aggregation of the non-enzymatic receptor

HM Kim, WJ Kim, KO Kim, JH Park, SK Lee - Journal of Alloys and …, 2021 - Elsevier
The performance of glucose sensors based on non-enzymatic receptors is often limited
because of the aggregation of receptors and the resulting lowered binding efficiency. To …

Dynamically interactive nanoparticles in three-dimensional microbeads for enhanced sensitivity, stability, and filtration in colorimetric sensing

H Song, DH Jung, SY Jeong, SH Kim, HH Cho… - … Composites and Hybrid …, 2024 - Springer
Nanoparticle-based colorimetric detection has emerged as a prominent sensing method
owing to its unique optical properties. However, direct exposure of metallic nanoparticles …

A paper-based point-of-care device for the detection of cysteine using gold nanoparticles from whole blood

M Kumari, N Kumar, S Kumar, S Gandhi… - Analytical …, 2024 - pubs.rsc.org
We present a colorimetric probe based on polyvinylpyrrolidone-capped gold nanoparticles
(PVP–AuNPs) that is sensitive and selective for cysteine (Cys). A microfluidic paper-based …

Digital colorimetric sensing for real‐time gas monitoring for smart green energy system

HH Cho, R Dutta, JK Kwak, C Moon, MJ Kim, SJ Suh… - …, 2023 - Wiley Online Library
In this study, we demonstrate that a digital colorimetric sensor platform can transform a
conventional energy system, such as gas‐insulated switchgear (GIS) into a smart green …