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Chen W, Weng S, Zhong W, Huang H, Wei G, Yang J, Zhang Z, Chen Q, Lin J, Yu Y. Rapid intracellular pH measurement based on electroporation- surface-enhanced Raman scattering. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 321:124758. [PMID: 38963945 DOI: 10.1016/j.saa.2024.124758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 06/25/2024] [Accepted: 06/28/2024] [Indexed: 07/06/2024]
Abstract
In this study, electroporation-surface-enhanced Raman scattering (SERS) was applied to rapidly measure intracellular pH. The generation of a sensitive SERS probe for measuring pH in the range of 6.0-8.0 was accomplished through the conjugation of the pH-sensitive molecule 4-mercaptobenzoic acid (4-MBA) to the surface of gold nanoparticles (Au NPs) through its thiol functional group. This bioprobe was then rapidly introduced into nasopharyngeal carcinoma CNE-1 cells by electroporation, followed by SERS scanning and the fitting of intensity ratios of each detection point's Raman peaks at 1423 cm-1 and 1072 cm-1, to create the pH distribution map of CNE-1 cells. The electroporation-SERS assay introduces pH bioprobes into a living cell in a very short time and disperses the nanoprobe throughout the cytoplasm, ultimately enabling rapid and comprehensive pH analysis of the entire cell. Our work demonstrates the potential of electroporation-SERS for the biochemical analysis of live cells.
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Affiliation(s)
- Weiwei Chen
- School of Medical Technology and Engineering, Fujian Health College, Fuzhou 350101, China.
| | - Shenghe Weng
- School of Medical Technology and Engineering, Fujian Health College, Fuzhou 350101, China
| | - Weixiong Zhong
- School of Medical Technology and Engineering, Fujian Health College, Fuzhou 350101, China
| | - Hao Huang
- College of Integrative Medicine, Laboratory of Pathophysiology, Key Laboratory of Integrative Medicine on Chronic Diseases (Fujian Province University), Synthesized Laboratory of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Guoqiang Wei
- College of Integrative Medicine, Laboratory of Pathophysiology, Key Laboratory of Integrative Medicine on Chronic Diseases (Fujian Province University), Synthesized Laboratory of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Jian Yang
- School of Medical Technology and Engineering, Fujian Health College, Fuzhou 350101, China
| | - Zhongping Zhang
- The Third Affiliated People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou 350108, China
| | - Qin Chen
- The Second Affiliated People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou 350003, China
| | - Jinyong Lin
- Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital (Fujian Branch of Fudan University Shanghai Cancer Center), Fuzhou 350014, China.
| | - Yun Yu
- College of Integrative Medicine, Laboratory of Pathophysiology, Key Laboratory of Integrative Medicine on Chronic Diseases (Fujian Province University), Synthesized Laboratory of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China.
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Liu J, Cheng J, Ma X, Zhou X, Xiang H. Photophysical properties and pH sensing applications of luminescent salicylaldehyde derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2343-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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