The structure of protein and peptide at interfaces plays a crucial role in various biological processes and technological advancements. Understanding these structures is critical for diagnosing diseases, drug delivery, and developing biomaterials. However, the complexity of these systems and limitations in analytical tools have hindered the in-depth exploration. Despite significant efforts in determining protein structures using advanced techniques like X-ray crystallography and cryo-electron microscopy, the understanding of surface-bound protein structures in real conditions remains relatively limited, posing a current challenge in this field. Vibrational sum frequency generation (SFG) spectroscopy has been developed as a versatile method for elucidating molecular structures of proteins across interfaces. This review is intended to introduce the basic principle of SFG spectroscopy, discuss its current advancements in phase measurement, and showcase recent examples (2021–2023) illustrating SFG’s ability in revealing the molecular structure of peptides and proteins at interfaces. This concise review aims to establish a foundation for future studies and applications exploring different types of peptides and proteins at interfaces using SFG.
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June 2024
Review Article|
June 01 2024
Recent advances in analyzing protein and peptide structures at interfaces using vibrational sum-frequency generation†
Special Collection:
In Memory of Prof. Qihe Zhu on the occasion of his 100th Anniversary
Baihui Wang;
Baihui Wang
‡
Key Laboratory of Applied Surface and Colloid Chemistry Ministry
of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal
University
, Xi ’an 710119, China
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Yimin Bai;
Yimin Bai
‡
Key Laboratory of Applied Surface and Colloid Chemistry Ministry
of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal
University
, Xi ’an 710119, China
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Jiahui Peng;
Jiahui Peng
Key Laboratory of Applied Surface and Colloid Chemistry Ministry
of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal
University
, Xi ’an 710119, China
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Miaomiao Zhang;
Miaomiao Zhang
Key Laboratory of Applied Surface and Colloid Chemistry Ministry
of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal
University
, Xi ’an 710119, China
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Weiting Zhang;
Weiting Zhang
Key Laboratory of Applied Surface and Colloid Chemistry Ministry
of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal
University
, Xi ’an 710119, China
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Hongtao Bian;
Hongtao Bian
*
Key Laboratory of Applied Surface and Colloid Chemistry Ministry
of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal
University
, Xi ’an 710119, China
*Author to whom correspondence should be
addressed. E-mail: [email protected]
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Yu Fang
Yu Fang
Key Laboratory of Applied Surface and Colloid Chemistry Ministry
of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal
University
, Xi ’an 710119, China
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*Author to whom correspondence should be
addressed. E-mail: [email protected]
†
Part of Special Issue “In Memory of Prof. Qihe Zhu on the occasion of his 100th Aniversary”.
‡
These authors contributed equally to this work.
Chin. J. Chem. Phys. 37, 398–410 (2024)
Article history
Received:
December 31 2023
Accepted:
February 15 2024
Citation
Baihui Wang, Yimin Bai, Jiahui Peng, Miaomiao Zhang, Weiting Zhang, Hongtao Bian, Yu Fang; Recent advances in analyzing protein and peptide structures at interfaces using vibrational sum-frequency generation. Chin. J. Chem. Phys. 1 June 2024; 37 (3): 398–410. https://doi.org/10.1063/1674-0068/cjcp2312146
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