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An indole-oxadiazole-derived fluorescent probe for the detection of the human serum albumin level in thoracic surgery

delete2026-05-23
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PRE
AI
H
Hanzhang Sun
G
Guanglei Zuo
Y
Yueming Wu
L
Lou, Yangyong
J
Jiang Feng
Y
Yulong Zheng *
DOI:10.1016/j.ab.2026.116090delete
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Abstract

Abstract

En 中文
In this work, the fluorescent probe InOx-HSA was developed from an indole-oxadiazole derivative for the detection of the HSA level in thoracic surgery. The probe reported a ratio fluorescence response from 405 nm to 505 nm under the excitation at 310 nm. InOx-HSA occupied the binding site of phenylbutazone in HSA and generated the fluorescence enhancement via Fo & uml;rster resonance energy transfer/twisted intramolecular charge transfer mechanisms. The response between InOx-HSA and HSA completed within 30 min. The probe-HSA complex kept stable within the range of 7.0-9.0. The ratio response was in a dosage-dependent manner with the limit of detection as 0.0002 mg/mL. InOx-HSA exhibited high specificity and low cytotoxicity. The site-binding strategy was confirmed by the drug competition, trypsin digestion, and protein denaturation by high temperature. InOx-HSA achieved visualizing HSA in living pulmonary cells, and revealed the ventilation-related consumption of HSA during the thoracic surgery.
Keywords:
Human serum albumin
Fluorescence probe
Thoracic surgery
Intracellular imaging
Hypoxia condition

Journal

Analytical Biochemistry cover
Analytical Biochemistry
IF:
2.5
Papers:
272
Citations:
3.3W

Organization

H
hallym university
Scholars:
1.1K
Papers: 451
Citations: 0
N
north sichuan medical university
Scholars:
675
Papers: 164
Citations: 0
Z
zhejiang university
Scholars:
17.0W
Papers: 11.9W
Citations: 152
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