Design and synthesis of a vanadate-based ratiometric fluorescent probe for sequential recognition of Cu²⁺ ions and biothiols

Abstract

YVO4:Eu3+@CDs core–shell nanomaterial was synthesized through a simple self-assembly of carbon dots (CDs) with YVO4:Eu3+, since the high affinity of oxygen-containing groups such as –COOH or –OH of CDs to the metal ions on the surface of YVO4:Eu3+.

A highly selective fluorescent probe for the sensing of Cu2+ based on the hydrolysis of a quinoline-2-carboxylate and its application in cell imaging

“…Furthermore, this coordination assists the attack of water on the carbonyl group; thus, a highly fluorescent molecule 2 is released due to the hydrolysis of probe 1. [36][37][38] Encouraged by the above experimental results, a further application of probe 1 for the sensing of Cu 2+ in living cells was conducted. Initially, we evaluated the cytotoxicity of probe 1 at various concentrations using MTT assays ( Figure S9).…”

“…Furthermore, this coordination assists the attack of water on the carbonyl group; thus, a highly fluorescent molecule 2 is released due to the hydrolysis of probe 1 . 36–38…”

A nanotheranostic agent based on Nd3+-doped YVO4 with blood-brain-barrier permeability for NIR-II fluorescence imaging/magnetic resonance imaging and boosted sonodynamic therapy of orthotopic glioma

“…Moreover, the vanadate has many merits for great potential biological applications, such as the simple preparation method, and controllable size. Yttrium vanadate (YVO 4 ) with low-energy phonons is one of the most intensively investigated host materials for various optical applications, such as phosphors and lasers 18 , 19 . YVO 4 :Eu 3+ nanoparticles have been applied as the probes for fluorescent imaging in the visible range 20 .…”

A Coumarin-Based Fluorescent Probe for Ratiometric Detection of Cu2+ and Its Application in Bioimaging

“…As is known to all, copper ion (Cu 2+ ) occupies an important place in a variety of fundamental physiological processes in organisms ranging from bacteria to mammals (Huang et al, 2014 ; Arjmand et al, 2018 ; Wang P. et al, 2018 ; Wang Y. et al, 2018 ; Zeng et al, 2019 ; Aydin et al, 2020 ; Wang Z. G. et al, 2020 ). However, Cu 2+ can also lead to environmental pollution because it has been used widely in industrial and agricultural processes (Huang et al, 2014 ; Zhang et al, 2016 ; Gu et al, 2018 ; Wang et al, 2019 ; Zhu et al, 2020 ).…”