Advances in nonlinear metasurfaces for imaging, quantum, and sensing applications

Z Zheng, D Rocco, H Ren, O Sergaeva, Y Zhang… - …, 2023 - degruyter.com
Metasurfaces, composed of artificial meta-atoms of subwavelength size, can support strong
light–matter interaction based on multipolar resonances and plasmonics, hence offering the …

Solid-State Nanopore Distinguishes Ferritin and Apo-Ferritin with Identical Exteriors through Amplified Flexibility at Single-Molecule Level

YD Yin, FF Chen, J Hu, L Yang, XT Song… - Analytical …, 2023 - ACS Publications
Protein identification and discrimination at the single-molecule level are big challenges.
Solid-state nanopores as a sensitive biosensor have been used for protein analysis …

In Situ Observation of Chemically Induced Protein Denaturation at Solvated Interfaces

PN Nirmalraj, MD Rossell, W Dachraoui… - … Applied Materials & …, 2023 - ACS Publications
Proteins unfold in chaotropic salt solutions, a process that is difficult to observe at the single
protein level. The work presented here demonstrates that a liquid-based atomic force …

Label-free tracking of proteins through plasmon-enhanced interference

M Peters, D McIntosh, A Branzan Albu, C Ying… - ACS Nanoscience …, 2023 - ACS Publications
Single unmodified biomolecules in solution can be observed and characterized by
interferometric imaging approaches; however, Rayleigh scattering limits this to larger …

Ti3C2 Nanosheets Functionalized with Ferritin–Biomimetic Platinum Nanoparticles for Electrochemical Biosensors of Nitrite

R Mu, D Zhu, G Wei - Biosensors, 2024 - mdpi.com
Nitrites widely exist in human life and the natural environment, but excessive contents of
nitrites will result in adverse effects on the environment and human health; hence, sensitive …

Influence of point mutations on PR65 conformational adaptability: Insights from molecular simulations and nanoaperture optical tweezers

A Banerjee, S Mathew, MM Naqvi, SZ Yilmaz… - Science …, 2024 - science.org
PR65 is the HEAT repeat scaffold subunit of the heterotrimeric protein phosphatase 2A
(PP2A) and an archetypal tandem repeat protein. Its conformational mechanics plays a …

Structural Flexibility and Disassembly Kinetics of Single Ferritin Molecules Using Optical Nanotweezers

A Yousefi, Z Zheng, S Zargarbashi, M Assadipapari… - ACS …, 2024 - ACS Publications
Ferritin, a spherical protein shell assembled from 24 subunits, functions as an efficient iron
storage and release system through its channels. Understanding how various chemicals …

Electrical Transport and Dynamics of Confined DNA through Highly Conductive 2D Graphene Nanochannels

Y Cui, C Ying, XY Huang, Q Ye, J Tian, Z Liu - Nano Letters, 2024 - ACS Publications
Confining DNA in nanochannels is an important approach to studying its structure and
transportation dynamics. Graphene nanochannels are particularly attractive for studying …

Portable fiber-based double nanohole optical tweezer for trapping small proteins

V Kaur, D Wright, S Mathew, M Peters… - Journal of Physics …, 2024 - iopscience.iop.org
We demonstrate the trapping and analysis of individual proteins using a portable optical
fiber tweezer setup with a double-nanohole in a gold film coating the fiber's end and aligned …

Trapping and sorting of nanoparticles by bowtie-nanohole plasmonic tweezers

Y Nie, C Xie, G Zhu, Y Fang - … of Physics B: Atomic, Molecular and …, 2023 - iopscience.iop.org
Optical tweezers are a crucial tool for manipulating nanoscale objects, and have a wide
range of applications in various fields. Bowtie-nanohole tweezers, a type of near-field optical …