Results 301 to 310 of about 2,750,300 (344)

Wettability gradient colorimetric sensing by amphiphilic molecular response

Chem. Commun., 2013
Herein we present a highly sensitive sensing method combining amphiphilic molecules and wettability gradient photonic hydrogels for molecular recognition and chemical sensing applications. These wettability gradient photonic films exhibit low analyte amount, fast response, as well as interference resistance, which enable them for applications in ...
Wei, Hong, Haoran, Li, Xiaobin, Hu, Binyuan, Zhao, Fan, Zhang, Di, Zhang, Zhou, Xu   +6 more
openaire   +2 more sources

Integration of mimic multienzyme systems in metal-metalloporphyrin gel composites for colorimetric sensing

, 2021
In this paper, a hierarchically porous metal-metalloporphyrin gel (MMPG) based mimic multienzyme system for colorimetric sensing is reported. The synthesis conditions for gel state Fe-MMPG were systematically investigated and the porous structures were ...
Xueli Zhang, Rongxiu Tu, Jin-yun Peng, C. Hou, Zonghua Wang   +4 more
semanticscholar   +1 more source

Colorimetric barbiturate sensing with hybrid spin crossover assemblies

Chem. Commun., 2014
Iron-based spin crossover complexes can be used as selective, visible sensors for barbiturates in the presence of other biologically relevant hydrogen bonding species.
Michael C, Young, Erica, Liew, Richard J, Hooley   +2 more
openaire   +2 more sources

Fiber-based chemical sensing and sensing platforms with colorimetric dyes

Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIX, 2018
Chemical warfare agents (CWAs) such as nerve and blister agents are expected to pose continuing and growing dangers for the Warfighter in the future. We investigate a novel chemical detection modality, based on a new platform for colorimetric detection of chemical threats incorporated in hollow fibers, which are miniature in two dimensions and ...
Rachel Odessey, Shane Tysk, Lauren Cantley, Keegan Quigley, Jimmy Xu, Do-Joong Lee, Jin Ho Kim, Mordechai Rothschild, Richard Kingsborough, Alexander Stolyarov, Conor Hennessy, Stephen Giardini, Richard M. Osgood   +12 more
openaire   +1 more source

A generalizable sensing platform based on molecularly imprinted polymer-aptamer double recognition and nanoenzyme assisted photoelectrochemical-colorimetric dual-mode detection.

Biosensors & bioelectronics
Developing highly sensitive and selective methods that incorporate specific recognition elements is crucial for detecting small molecules because of the limited availability of small molecule antibodies and the challenges in obtaining sensitive signals ...
Ying-zhuo Shen, Wenzheng Xie, Zheng Wang, Kangping Ning, Z. Ji, Hong Li, Xiaoya Hu, Cheng Ma, Xu Qin   +8 more
semanticscholar   +1 more source

Smart colorimetric sensing films with high mechanical strength and hydrophobic properties for visual monitoring of shrimp and pork freshness

, 2020
During recent years the use of smart colorimetric packaging films for monitoring food freshness has received widespread attention. However, their poor mechanical strength and hydrophilic properties are the major problems hindering the large-scale ...
Huilin Dong, Zhe Ling, Xun Zhang, Xueming Zhang, S. Ramaswamy, Feng Xu   +5 more
semanticscholar   +1 more source

Transdermal colorimetric patch for hyperglycemia sensing in diabetic mice

Biomaterials, 2020
The integration of sampling and instant metabolite readout can fundamentally elevate patient compliance. To circumvent the need for complex in-lab apparatus, here, an all-in-one sampling and display transdermal colorimetric microneedle patch was developed for sensing hyperglycemia in mice.
Zejun, Wang, Hongjun, Li, Jinqiang, Wang, Zhaowei, Chen, Guojun, Chen, Di, Wen, Amanda, Chan, Zhen, Gu   +7 more
openaire   +2 more sources

Plasmonic platforms for colorimetric sensing of cysteine

Applied Spectroscopy Reviews, 2015
AbstractCysteine plays a crucial role in physiological processes, as well as in the food, pharmaceutical, and even personal care industries, which is of great significance to control its concentration. Plasmonic nanomaterials have attracted increasing interest in colorimetric sensing, due to their outstanding optical, chemical, and catalytic properties.
Rong Sheng Li, Hong Zhi Zhang, Jian Ling, Cheng Zhi Huang, Jian Wang   +4 more
openaire   +1 more source

Colorimetric sensing ensemble for citrate in water

Sensors and Actuators B: Chemical, 2014
Abstract A copper(II)-assisted guanidiniocarbonyl pyrrole receptor 1-Cu 2+ was synthesized, and its binding properties toward some organic acids were determined in aqueous solution. This receptor exhibited high selectivity and affinity for citrate over other similar analytes, the association constant reached 10 5  M −1 in protic media at ...
Yimin Sun, Fei Xiao, Cheng Zhong, Peng Xue, Enqin Fu   +4 more
openaire   +1 more source

Colorimetric Sensing with Reconfigurable Chiral Plasmonic Metamolecules

Optica Sensing Congress 2024 (AIS, LACSEA, Sensors, QSM)
Chiral Plasmonic Metamolecules with pronounced optical activities enable colorimetric readout of chiroptical responses. We developed the reconfigurable metamolecules that has a high dis-symmetry factor as nanoswitches for molecular biosensing, where addition of target analytes brought a drastic color change readily detected with the naked eye.
Kuzyk Anton, Loo Jacky, Nguyen Kha, Pham Xuan, Huang Yike, Heikkilä Alina-Sofia, Lindfors Anni, Mikkola Kalle, Hällsten Susanna   +8 more
openaire   +3 more sources