Results 261 to 270 of about 61,204 (302)

Plasmonic Colorimetric Sensor Using Ag-NHoM Structures

2022 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2022
We demonstrated that random structures formed by heat-treatment on mirrored substrates through spacers layer can control the plasmonic color in the visible wavelength range and can be applied to highly sensitive colorimetric sensors.
S. Maeda, K. Matsuda, R. Niguma, T. Matsuyama, K. Wada, K. Okamoto   +5 more
openaire   +1 more source

Colorimetric Sensor for ATP in Aqueous Solution

Organic Letters, 2007
A new chromogenic complex 1.Zn has been synthesized, and its interactions with different biologically important phosphates have been investigated in aqueous solution (pH approximately 7.2). A visual color change can be detected on binding of ATP to 1.Zn, whereas no such change is observed when other biologically related anions (AMP, ADP, PPi, or ...
D Amilan, Jose, Sandhya, Mishra, Amrita, Ghosh, Anupama, Shrivastav, Sanjiv K, Mishra, Amitava, Das   +5 more
openaire   +2 more sources

Smartphone-Based VOC Sensor Using Colorimetric Polydiacetylenes

ACS Applied Materials & Interfaces, 2018
Owing to a unique colorimetric (typically blue-to-red) feature upon environmental stimulation, polydiacetylenes (PDAs) have been actively employed in chemosensor systems. We developed a highly accurate and simple volatile organic compound (VOC) sensor system that can be operated using a conventional smartphone.
Dong-Hoon Park, Jung-Moo Heo, Woomin Jeong, Young Hyuk Yoo, Bum Jun Park, Jong-Man Kim   +5 more
openaire   +2 more sources

Colorimetric and Fluorometric Sensor Arrays

2021
The design and construction of colorimetric/fluorometric sensor arrays with high selectivity and sensitivity has been of considerable attention as an emerging technology for mobile chemical detection. Nowadays, many approaches have been made to design sensors, fabricate arrays and generalize their usage areas especially in daily life applications and ...
openaire   +1 more source

Colorimetric Sensor Arrays for Volatile Organic Compounds

Analytical Chemistry, 2006
The development of a low-cost, sensitive colorimetric sensor array for the detection and identification of volatile organic compounds (VOCs) is reported. Using an array composed of chemoresponsive dyes, enormous discriminatory power is possible in a simple device that can be imaged easily with an ordinary flatbed scanner.
Michael C, Janzen, Jennifer B, Ponder, Daniel P, Bailey, Crystal K, Ingison, Kenneth S, Suslick   +4 more
openaire   +2 more sources

A colorimetric sensor array for odour visualization

Nature, 2000
Array-based vapour-sensing devices are used to detect and differentiate between chemically diverse analytes. These systems--based on cross-responsive sensor elements--aim to mimic the mammalian olfactory system by producing composite responses unique to each odorant.
N A, Rakow, K S, Suslick
openaire   +2 more sources

Hand-Held Reader for Colorimetric Sensor Arrays

Analytical Chemistry, 2015
An inexpensive hand-held device for analysis of colorimetric sensor arrays (CSAs) has been developed. The device makes use of a contact image sensor (CIS), technology commonly used in business card scanners, to rapidly collect low-noise colorimetric data for chemical sensing. The lack of moving parts and insensitivity to vibration allow for lower noise
Jon R, Askim, Kenneth S, Suslick
openaire   +2 more sources

A flexible transparent colorimetric wrist strap sensor

Nanoscale, 2017
A flexible, transparent, and portable wrist strap sensor device has been well developed from a hierarchical polydiacetylene/MoS2 nanocomposite (PDA/MoS2) film. MoS2 with a nanoflake structure and chelation ability acts as a supporter for PDA films to enhance the porosity as well as the transparency of films, which increases the sensitivity, selectivity,
Ting, Wang, Yunlong, Guo, Pengbo, Wan, Xiaoming, Sun, Han, Zhang, Zhongzhen, Yu, Xiaodong, Chen   +6 more
openaire   +2 more sources

Counterion Free Colorimetric Metal Cation Sensor Array

Journal of Combinatorial Chemistry, 2007
By a systematic ionic effect study in colorimetric dye arrays, we effectively suppressed the anion effect using the proper buffer condition and configured a universal cation sensor system. This result cast a warning for careful validation for other anion sensing systems in aqueous solution.
Lee, Jun-Seok, Lee, Jae Wook, Chang, Young-Tae   +2 more
openaire   +3 more sources

Hexaphyrin(1.0.1.0.0.0). A new colorimetric actinide sensor

Tetrahedron, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Jonathan L. Sessler, Patricia J. Melfi, Daniel Seidel, Anne E. V. Gorden, Doris K. Ford, Philip D. Palmer, C. Drew Tait   +6 more
openaire   +1 more source