Results 31 to 40 of about 558,671 (204)

Recent Advances in Photoswitchable Fluorescent and Colorimetric Probes

open access: yesMolecules
In recent years, significant advancements have been made in the research of photoswitchable probes. These probes undergo reversible structural and electronic changes upon light exposure, thus exhibiting vast potential in molecular detection, biological ...
Hongjuan Chen   +4 more
doaj   +1 more source

A Novel “Off-On” Fluorescent Probe Based on Carbon Nitride Nanoribbons for the Detection of Citrate Anion and Live Cell Imaging

open access: yesSensors, 2018
A novel fluorescent “off-on” probe based on carbon nitride (C3N4) nanoribbons was developed for citrate anion (C6H5O73−) detection. The fluorescence of C3N4 nanoribbons can be quenched by Cu2+ and then recovered by the addition of C6H5O73−, because the ...
Yanling Hu   +9 more
doaj   +1 more source

Photothermal heterodyne imaging of individual nonfluorescent nanoclusters and nanocrystals [PDF]

open access: yes, 2004
We introduce a new, highly sensitive, and simple heterodyne optical method for imaging individual nonfluorescent nanoclusters and nanocrystals. A 2 order of magnitude improvement of the signal is achieved compared to previous methods. This allows for the
A. P. Alivisatos   +9 more
core   +2 more sources

2-benzothiazoleacetonitrile based two-photon fluorescent probe for hydrazine and its bio-imaging and environmental applications

open access: yesScientific Reports, 2017
A novel turn-on two-photon fluorescent probe NS-N 2 H 4 was developed with the 2-benzothiazoleacetonitrile as a new recognition site for the detection of hydrazine (N2H4).
Jian-Yong Wang   +3 more
doaj   +1 more source

Quantum yield optimized fluorophores for site-specific labeling and super-resolution imaging

open access: yes, 2011
Single molecule applications, saturated pattern excitation microscopy, or stimulated emission depletion (STED) microscopy demand for bright and highly stable fluorescent dyes1,2.
Choquet, Daniel   +6 more
core   +3 more sources

Fluorescent optical fibre chemosensor for the detection of mercury [PDF]

open access: yes, 2016
This work aims to develop a stable, compact and portable fibre optic sensing system which is capable of real time detection of the mercury ion (II), Hg2+.
Grattan, K. T. V.   +3 more
core   +1 more source

Theranostic Fluorescent Probes

open access: yesChemical Reviews
The ability to gain spatiotemporal information, and in some cases achieve spatiotemporal control, in the context of drug delivery makes theranostic fluorescent probes an attractive and intensely investigated research topic. This interest is reflected in the steep rise in publications on the topic that have appeared over the past decade.
Amit Sharma   +16 more
openaire   +2 more sources

A highly sensitive fluorescent probe based on BODIPY for Hg2+ in aqueous solution

open access: yes上海师范大学学报. 自然科学版, 2016
A highly sensitive fluorescent probe based on BODIPY and hydrazine for Hg2+ was designed and synthesized.This probe could detect mercury ions in aqueous solutions within 5 min.With the increase of Hg2+ mole concentration,an obvious red shift of UV-Vis ...
ZHAO Junwei   +5 more
doaj   +1 more source

Improved Affinity: A Customized Fluorescent Probe for the Rapid Detection of Butyrylcholinesterase

open access: yesChemosensors
This article presents the distinctive butyrylcholinesterase (BChE) fluorescent probe P5, designed via a targeting-site method. This method was proposed to enhance the affinity of the probe for BChE by targeting the peripheral anionic site (PAS) of BChE ...
Wei Wang   +6 more
doaj   +1 more source

Selective Sugar Recognition by Anthracene-Type Boronic Acid Fluorophore/Cyclodextrin Supramolecular Complex Under Physiological pH Condition

open access: yesFrontiers in Chemistry, 2019
We synthesized novel PET (photoinduced electron transfer)-type fluorescence glucose probe 1 [(4-(anthracen-2-yl-carbamoyl)-3-fluorophenyl)boronic acid], which has a phenylboronic acid (PBA) moiety as the recognition site and anthracene as the fluorescent
Ko Sugita   +8 more
doaj   +1 more source

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