Aggregation-induced emission (AIE) active fluorescent probes have attracted great potential in biological sensors. In this paper two cyanostilbene based fluorescence chemoprobe Cya-NO (1) and Cya-N (2) were developed and evaluated for the selective and sensitive detection of hydrogen sulfide (HS). Both of these probes behave aggression-induced emission (AIE) activity which fluoresces in the red region with a large Stokes shift. They exhibit rapid response to HS with enormous colorimetric and ratiometric fluorescent changes. They are readily employed for assessing intracellular HS levels.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.saa.2018.03.052 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Gold nanoclusters-based dual-mode ratiometric sensing system for selective and sensitive detection of paraquat.
Talanta
December 2024
Macau Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, 999078, China. Electronic address:
Unreasonable or illegal utilization of pesticides may lead to pollution of agricultural products, especially with some persistent but effective pesticides. Hence, there is an urgent need to develop sensitive and rapid methods for pesticide detection to ensure the safety of agricultural products. Herein, a dual-mode ratiometric sensing system utilizing two gold nanoclusters (G/R-AuNCs) was designed and constructed for paraquat (PQ) detection, a typical, highly toxic, widely used pesticide.
View Article and Find Full Text PDFA dual-functional specific fluorescent bio-sensor based on triphenylamine for "turn-off" recognition of copper and mercury: Application in real samples and living system.
Spectrochim Acta A Mol Biomol Spectrosc
December 2024
Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, PR China. Electronic address:
Accurately monitoring the content of Cu and Hg in real samples and biological systems is of great significance in ensuring food safety and human health. Therefore, developing efficient methods for simultaneously detecting Cu and Hg is of great significance in living organisms and real samples. In this work, a bifunctional ratiometric and colorimetric fluorescent bio-sensor DPT-1, was designed and synthesized using triphenylamine to specifically and concurrently detect Cu and Hg exhibited varying degrees of fluorescence quenching through "turn-off" fluorescence.
View Article and Find Full Text PDFICT-based fluorescent nanoparticles for selective cyanide ion detection and quantification in apple seeds.
Analyst
December 2024
Department of Chemistry, Khalifa University of Science and Technology, Abu Dhabi, P.O. Box 127788, United Arab Emirates.
In this report, we successfully engineered a novel probe based on an acceptor-donor-acceptor (A-D-A) architecture featuring dicyanovinyl-substituted thieno[3,2-]thiophene, termed DCVTT. The designed probe self-assembles into luminous nanoparticles (DCVTT NPs) upon introducing mixed aqueous solutions. These fluorescent nanostructures served as a ratiometric probe for detecting cyanide (CN) ions in aqueous-based environments, owing to the robust Intramolecular Charge Transfer (ICT) characteristics of DCVTT.
View Article and Find Full Text PDFGold nanoclusters decorated hollow ZIF-8 encapsulating iron-catecholates as oxidase mimetics for ratiometric colorimetric detection of nitrite.
Mikrochim Acta
December 2024
College of Food Science and Engineering, Wuhan Polytechnic University, Xuefu South Road No. 68, Changqing Garden, Wuhan, Hubei Province, 430023, China.
Gold nanoclusters decorated hollow ZIF-8 encapsulating iron-catecholates (Fe-HHTP@HZIF-8@ AuNCs) was formed through self-assembly of Fe and 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP), in situ embedding of ZIF-8, and Au-Zn exchange reaction. Its morphology and structure were fully characterized by high-resolution transmission electron microscopy, X-ray diffraction, transmission electron microscopy element mapping, and X-ray photoelectron spectroscopy. Additionally, its oxidase-like activity was explored with K of 0.
View Article and Find Full Text PDFA colorimetric and ratiometric fluorescent probe of hypochlorous acid and its bio-imaging application.
Photochem Photobiol Sci
December 2024
State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China.
A new ratiometric and colorimetric fluorescent probe HTD was synthesized based on the reaction of 4-aminophenyl boronic acid pinacol ester and 4-(3-formyl-4-hydroxyphenyl) benzonitrile. The probe exhibited a unique fluorescence response to hypochlorous acid and had good anti-interference performance in the presence of other interference. When HTD met the NaClO, the light orange fluorescence was changed to green with the blue-shifted emission wavelength from 550 to 500Â nm.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!