Probing Biothiols Using a Red‐Emitting Pyridoxal Derivative by Adopting Copper(II) Displacement Approach and Cell Imaging

Chemistry & Biodiversity, Год журнала: 2022, Номер 19(9)

Опубликована: Авг. 12, 2022

An aggregation-induced emission (AIE) active Schiff base L was obtained by reacting pyridoxal and 2-hydroxy-1-naphthaldehyde with p-phenylenediamine in two simple steps. The colorimetric, UV/VIS fluorescence studies of revealed that the yellow emissive (λem =540 nm, λex =450 nm) pure DMSO turned to a red-emissive L, when poor solvent fraction (HEPES buffer, 10 mM, pH 7.4) increased above 50 % DMSO. SEM DLS results indicated formation self-aggregates restricted intramolecular motion promoted excited state proton transfer (ESIPT) process. cations sensing ability AIEgen explored HEPES buffer (5 DMSO, 7.4), where Cu2+ selectively quenched at 608 nm due chelation-enhanced quenching (CHEQ) effect an estimated sensitivity limit 0.9 μM. Subsequently, situ formed L-Cu2+ complex applied for cascade detection glutathione (GSH), cysteine (Cys) homocysteine (Hcy). decomplexation from GSH, Cys Hcy restored nm. With this displacement approach, concentration Cys, GSH can be detected down 2.8 μM, 3.12 μM 2.0 respectively. practical utility examined monitoring selective analytes real environmental biological samples, also successfully cell imaging applications.

Язык: Английский

---

Tuning the sensing properties of isophthalic dihydrazide-based receptor via formation of organic–inorganic hybrid and metal complex: An enhanced sensing activity for Hg2+ and CN− detection in semi-aqueous medium

Microchemical Journal, Год журнала: 2024, Номер 202, С. 110739 - 110739

Опубликована: Май 11, 2024

Язык: Английский

---

A pyrene-based multifunctional fluorescent probe for the detection of Cu2+ and Al3+

Microchemical Journal, Год журнала: 2024, Номер unknown, С. 112531 - 112531

Опубликована: Дек. 1, 2024

Язык: Английский

---

Interpol review of fingermarks and other body impressions (2019 – 2022)

Forensic Science International Synergy, Год журнала: 2022, Номер 6, С. 100304 - 100304

Опубликована: Дек. 28, 2022

Язык: Английский

---

Pyridoxal derived red-emitting aggregates for the ratiometric sensing of pH and copper(II)

Optical Materials, Год журнала: 2023, Номер 136, С. 113414 - 113414

Опубликована: Янв. 5, 2023

Язык: Английский

---