Results 111 to 120 of about 2,211,122 (242)

Mechanical Signatures of Nucleic Acid Trefoil Knot Topology

Angewandte Chemie, EarlyView.
Single‐stranded DNA can be designed with sequences that self‐thread into topological knots. The exact same sequence can alternatively be turned into an unknotted pseudoknot. The topology of the resulting polymer is determined by applying force with optical tweezers, causing the pseudoknot to resolve but the knot to tighten.
David t.R. Bakker, Micah Yang, Isaac T. S. Li   +2 more
wiley   +2 more sources

Interactive approach to optical tweezers control [PDF]

, 2006
Padgett, M.J., Gibson, G., Jordan, P., Thomson, L., Leach, J., Courtial, J., Cooper, J., Wulff, K., Sinclair, G., Laczik, Z., Karunwi, K.   +10 more
core   +1 more source

Internal Electric Field‐Guided, Low‐Adsorption Ferroelectric Anode Protective Layers for Sustainable Suppression of Polysulfide Side Reactions in Lithium–Sulfur Batteries

Advanced Energy Materials, EarlyView.
A positively polarized ferroelectric β‐pvdf layer incorporating fluorinated boron nitride nanosheets (PPFBN) establishes a strong internal field that promotes Li+ transport toward the anode while suppressing the migration of polysulfide anions. In addition, its intrinsically low polysulfide affinity helps preserve protective‐layer functionality ...
Daehun Han, Hyerim Jang, Junyoung Heo, Kyungjun Kim, Hawon Gu, Jun‐Woo Park, Sang‐Min Lee   +6 more
wiley   +1 more source

Mapping optical process in semiconductor nanowires using dynamic optical tweezers

, 2016
We present a novel method for spatial mapping of the luminescent properties of single optically trapped semiconductor nanowires by combing dynamic optical tweezers with micro-photoluminescence. The technique involves the use of a spatial light modulator (
McGloin, David, Jagadish, Chennupati, Ming Lee, Woei, Reece, Peter, Tan, Hark Hoe, Gao, Qiang, Wang, Fan, Hartstone, Alexander, Toe, Wen Jun   +8 more
core   +1 more source

Enhancing Sensitivity across Scales with Highly Sensitive Hall Effect‐Based Auxetic Tactile Sensors

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Herein, a tactile sensor based on hall‐effect sensors with an auxetic structure, called Hall effect‐based auxetic tactile sensor (HEATS), is proposed. The change in magnetism resulting from the deformation of the auxetic structure is utilized for sensing.
Youngheon Yun, Dongchan Lee, Soyeon Lee, Salvador Pané, Josep Puigmartí‐Luis, Sungwoo Chun, Bumjin Jang   +6 more
wiley   +1 more source

Design, Control, and Clinical Applications of Magnetic Actuation Systems: Challenges and Opportunities

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This review aims to provide a broad understanding for interdisciplinary researchers in engineering and clinical applications. It addresses the development and control of magnetic actuation systems (MASs) in clinical surgeries and their revolutionary effects in multiple clinical applications.
Yingxin Huo, Lidong Yang, Tiantian Xu, Dong Sun   +3 more
wiley   +1 more source

Development of electromagnetic tweezers for single-molecule energetics of kinesin

Biophysics and Physicobiology
Optical tweezers have enabled single-molecule measurements of kinesin mechanics and energetics but face challenges for in vivo applications due to photothermal effects and refractive-index-dependent force calibration.
Haruyuki Fukuzawa, Yuga Ihara, Masato Sawa, Hidekazu Shirai, Sawako Enoki, Keigo Ikezaki, Taketoshi Kambara, Yasushi Okada   +7 more
doaj   +1 more source

Optical Tweezers: From Light Scattering Fundamentals to Single-Molecule Manipulation and Cellular Mechanosensing

Photonics
Optical force originates from momentum transfer in the interaction between light and matter, forming the physical foundation of optical tweezers. Over the past four decades, optical tweezers have undergone a paradigm shift from passive manipulation tools
Jie He, Yanan Zhao, Tianli Wu
doaj   +1 more source

Versatile Standing Wave Generation Between Arbitrarily Oriented Surfaces Using Acoustic Metasurface Deflectors and Retroreflectors

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
A novel method for generating versatile standing wave fields using an acoustic metasurface deflector and retroreflector is introduced. By overcoming traditional constraints of parallel surfaces, the approach enables customizable wave patterns and enhances applications in particle manipulation.
Chadi Ellouzi, Farhood Aghdasi, Ali Zabihi, Amir K. Miri, Chen Shen   +4 more
wiley   +1 more source

Accurate and Anti‐Interference Control of Computer Vision‐Assisted Light‐Driven Liquid Crystal Elastomer Actuator

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This article introduces a computer vision‐assisted control strategy for light‐driven liquid crystal elastomer actuators. Through negative feedback regulation, the liquid crystal elastomer actuator exhibits accurate and stable bending deformation in complex environments.
Wei Zhang, Zongxuan Wu, Li Lin, Yanjun Liu, Xiaoying Tang, Yajing Shen, Dan Luo   +6 more
wiley   +1 more source