Structure and dynamics of interfacial peptides and proteins from vibrational sum-frequency generation spectroscopy

S Hosseinpour, SJ Roeters, M Bonn, W Peukert… - Chemical …, 2020 - ACS Publications
Proteins at interfaces play important roles in cell biology, immunology, bioengineering, and
biomimetic material design. Many biological processes are based on interfacial protein …

Detecting interplay of chirality, water, and interfaces for elucidating biological functions

ECY Yan, EA Perets, D Konstantinovsky… - Accounts of Chemical …, 2023 - ACS Publications
Conspectus Chemists have long been fascinated by chirality, water, and interfaces, making
tremendous progress in each research area. However, the chemistry emerging from the …

Detecting the first hydration shell structure around biomolecules at interfaces

D Konstantinovsky, EA Perets, T Santiago… - ACS Central …, 2022 - ACS Publications
Understanding the role of water in biological processes remains a central challenge in the
life sciences. Water structures in hydration shells of biomolecules are difficult to study in situ …

Chiral sum frequency generation spectroscopy detects double-helix dna at interfaces

EA Perets, KB Olesen, ECY Yan - Langmuir, 2022 - ACS Publications
Many DNA-based technologies involve the immobilization of DNA and therefore require a
fundamental understanding of the DNA structure–function relationship at interfaces. We …

Mirror-image antiparallel β-sheets organize water molecules into superstructures of opposite chirality

EA Perets, D Konstantinovsky, L Fu… - Proceedings of the …, 2020 - National Acad Sciences
Biomolecular hydration is fundamental to biological functions. Using phase-resolved chiral
sum-frequency generation spectroscopy (SFG), we probe molecular architectures and …

The Impact of Electric Fields on Processes at Electrode Interfaces

Z Long, J Meng, LR Weddle, PE Videla… - Chemical …, 2025 - ACS Publications
The application of external electric fields to influence chemical reactions at electrode
interfaces has attracted considerable interest in recent years. However, the design of electric …

Design of an electrostatic frequency map for the NH stretch of the protein backbone and application to chiral sum frequency generation spectroscopy

D Konstantinovsky, EA Perets, T Santiago… - The Journal of …, 2023 - ACS Publications
We develop an electrostatic map for the vibrational NH stretch (amide A) of the protein
backbone with a focus on vibrational chiral sum frequency generation spectroscopy (chiral …

Characterizing interfaces by Voronoi tessellation

D Konstantinovsky, ECY Yan… - The Journal of …, 2023 - ACS Publications
The chemistry of interfaces differs markedly from that of the bulk. Calculation of interfacial
properties depends strongly on the definition of the interface, which can lead to ambiguous …

Optical spectroscopy of surfaces, interfaces, and thin films

TJ Blackburn, SM Tyler, JE Pemberton - Analytical Chemistry, 2022 - ACS Publications
Efforts to characterize solid/liquid, solid/gas, liquid/gas, liquid/liquid, and liquid/gas
interfaces utilizing optical spectroscopies in the ultraviolet− visible (UV− vis), infrared (IR) …

Acidic environment significantly alters aggregation pathway of human islet amyloid polypeptide at negative lipid membrane

J Zhang, J Tan, R Pei, S Ye - Langmuir, 2020 - ACS Publications
The misfolding and aggregation of human islet amyloid polypeptide (hIAPP) at cell
membrane has a close relationship with the development of type 2 diabetes (T2DM). This …