Results 51 to 60 of about 558,671 (204)

From 2,3-Diazabicyclo[2.2.2]oct-2-ene to Fluorazophore-L, a membrane-bound fluorescent probe for antioxidants [PDF]

open access: yes, 2004
The aim of this work was to synthesize and to establish a new fluorescent membrane probe for antioxidants by exploiting the exceptional properties of the long-lived fluorophore 2,3-diazabicyclo[2.2.2]oct-2-ene (DBO) alias Fluorazophore-P.
Gramlich, Gabriela
core   +1 more source

Theoretical insights into a turn-on fluorescence probe based on naphthalimide for peroxynitrite detection

open access: yesHeliyon
Compared with other reactive oxygen species, peroxynitrite (ONOO−) has diversified reactions and transformations in organisms, and its specific action mechanism is not very clear. The study of reactive oxygen species is of great significance in the field
He Huang, Zhongfu Zou, Yongjin Peng
doaj   +1 more source

Synthesis and Fluorescent Properties of Aminopyridines and the Application in “Click and Probing”

open access: yesMolecules, 2022
Unsubstituted pyridin-2-amine has a high quantum yield and is a potential scaffold for a fluorescent probe. However, the facile access to conjugated highly substituted aminopyridines and the study of their fluorescent properties is scarce. In this paper,
Zongyang Li   +6 more
doaj   +1 more source

A Schiff Base Fluorescence Enhancement Probe for Fe(III) and Its Sensing Applications in Cancer Cells

open access: yesSensors, 2019
We report a new Schiff base fluorescent probe which senses ferric ion, Fe(III), with a significant fluorescence enhancement response. The probe showed high sensitivity (0.8 ppb), and fast response time (<10 s) of Fe(III) in aqueous media. In addition,
Na Hee Kim   +4 more
doaj   +1 more source

Fluorescent image-guided surgery in breast cancer by intravenous application of a quenched fluorescence activity-based probe for cysteine cathepsins in a syngeneic mouse model

open access: yesEJNMMI Research, 2020
Purpose The reoperation rate for breast-conserving surgery is as high as 15–30% due to residual tumor in the surgical cavity after surgery. In vivo tumor-targeted optical molecular imaging may serve as a red-flag technique to improve intraoperative ...
Frans V. Suurs   +9 more
doaj   +1 more source

Fluorescent probe immobilization into enzyme molecules [PDF]

open access: yesКомпьютерные исследования и моделирование, 2013
The results of the experimental and theoretical researches of kinetics of erythrosine penetration into collagenase molecules have represented in this paper.
Valeriya Sergeevna Maryakhina   +1 more
doaj   +1 more source

Protocol for synthesis and use of a turn-on fluorescent probe for quantifying labile Zn2+ in the Golgi apparatus in live cells

open access: yesSTAR Protocols, 2021
Summary: Quantitative analysis using a turn-on fluorescent probe is inherently difficult due to the dependency of the fluorescence intensity on the probe concentration.
Toshiyuki Kowada   +3 more
doaj   +1 more source

Homologous cholinergic fluorescent probes. Synthesis and fluorescence properties [PDF]

open access: yesFEBS Letters, 1978
The advantages of using specifically designed fluorescent molecules to probe ligand binding sites on proteins, have been recognised [1]. Cholinesterases [2-4], acetylcholine receptor rich fragments from Torpedo marmorata[5,6] and an acetylcholine binding lipoprotein [7] have been studied using fluorescent trialkylammonium ligands.
Narayanan, R, Balaram, P
openaire   +3 more sources

Design and Investigation of Optical Properties of N-(Rhodamine-B)-Lactam-Ethylenediamine (RhB-EDA) Fluorescent Probe

open access: yesSensors, 2018
This study presents chemical modification of a Rhodamine B (RhB) sensor probe by ethylenediamine (EDA), and investigation of its spectral as well as sensor properties to the various metals. The synthesised N-(Rhodamine-B)-lactam-ethylenediamine (RhB-EDA)
Eva Soršak   +3 more
doaj   +1 more source

Fluorescent Probes for Biological Imaging [PDF]

open access: yesBioMed Research International, 2016
Owing to the high sensitivity, high resolution, and the wealth of contrast mechanisms, fluorescence imaging is the most versatile and widely used visualization modality to study the structure and function of biological systems and the molecular process in living organisms without perturbing them.
Xuanjun Zhang   +3 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy