A highly selective fluorescent chemosensor for cyanide anions based on a chalcone derivative in the presence of iron(iii) ions, and its capacity for living cell imaging in mixed aqueous systems

Abstract

A chalcone based chemosensor was reported, and its in situ formed complex can serve as a cyanide anion probe.

Nitrogen-doped graphene quantum dot-based portable fluorescent sensors for the sensitive detection of Fe3+ and ATP with logic gate operation

“…S9, ESI†). 50 In addition, the FT-IR spectra of the N-GQD-Fe 3+ system showed a characteristic Fe–O–P absorption peak at 521 cm −1 after the addition of ATP (Fig. S10, ESI†), 33 further demonstrating the coordination of Fe 3+ -ATP.…”

Materiais Cristalinos Funcionais e Desenvolvimento Tecnológico

“…31 Outro trabalho reportado mostra uma chalcona, que complexada ao íon Fe 3+ , demonstrou potencial de aplicação em processos ambientais visto que esse complexo permite a detecção seletiva de íons cianeto em sistemas aquosos, tais íons apresentam elevada toxicidade no meio ambiente. 32 Também baseado em uma chalcona, foi sintetizado um sensor de fluorescência capaz de remover por completo, com auxílio de uma membrana de separação adequada, o íon Fe 3+ de amostras de águas. 33 Em paralelo, outro estudo com um agregado de chalcona, combinado com o íon Al 3+ , teve o intuito de desenvolver um método fluorimétrico para determinação desse íon em amostras de água 34 .…”

Branching effect for aggregation-induced emission in fluorophores containing imine and triphenylamine structures

“…6 could probably permeate the cell membrane in the solution state and aggregate inside the cell. [53][54][55] As for intracellular imaging applications, the cytotoxicity of the probe should be taken into consideration. The MTT assay was performed to evaluate the toxicity of 6 by A549 cells.…”