Results 61 to 70 of about 53,364 (200)
Advanced Functional Materials, EarlyView.MagPiezo enables wireless activation of endogenous Piezo1 channels without genetic modification using 19 nm magnetic nanoparticles and low‐intensity magnetic fields. It generates torque forces at the piconewton scale to trigger mechanotransduction in endothelial cells, standing as a novel platform to interrogate and manipulate Piezo1 activity in vitro.
Susel Del Sol‐Fernández +7 more
wiley +1 more source
Multi-frequency passive and active microrheology with optical tweezers
Scientific Reports, 2021 Optical tweezers have attracted significant attention for microrheological applications, due to the possibility of investigating viscoelastic properties in vivo which are strongly related to the health status and development of biological specimens.
Randhir Kumar +5 more
doaj +1 more source
Holographic Optical Tweezers: Techniques and Biomedical Applications
Applied Sciences, 2022 Holographic optical tweezers (HOT) is a programmable technique used for manipulation of microsized samples. In combination with computer-generation holography (CGH), a spatial light modulator reshapes the light distribution within the focal area of the ...
Hui-Chi Chen, Chau-Jern Cheng
doaj +1 more source
Holographic aberration correction: optimising the stiffness of an optical trap deep in the sample [PDF]
, 2011 We investigate the effects of 1st order spherical aberration and defocus upon the stiffness of an optical trap tens of μm into the sample. We control both these aberrations with a spatial light modulator. The key to maintain optimum trap stiffness over a
Bowman +22 more
core +1 more source
Advanced Functional Materials, EarlyView.Butterfly wing scales are intricate cuticular functional nanosctructures. This perspective suggests that spatially varying material properties, cytoskeletal constraints, and growth‐driven mechanical instabilities shape the resulting nanoscale architectures created from single cells.
Anupama Prakash +10 more
wiley +1 more source
Materials Today AdvancesThe rheological properties of red blood cells (RBCs) are crucial for human health. Combining optical tweezers with microfluidics provides a non-contact, sensitive, and high-throughput method for studying RBC rheology.
Ying Liu +10 more
doaj +1 more source
Optical trapping core formation and general trapping mechanism in single-beam optical tweezers
New Journal of Physics, 2022 The working mechanism of single-beam optical tweezers is revisited using a recently established method. The optical force is split into conservative and nonconservative components, and these components are explicitly calculated for particles in the ...
Di Huang +7 more
doaj +1 more source
Alkaline earth atoms in optical tweezers [PDF]
, 2018 We demonstrate single-shot imaging and narrow-line cooling of individual alkaline earth atoms in optical tweezers; specifically, strontium-88 atoms trapped in $515.2~\text{nm}$ light.
Cooper, Alexandre +5 more
core +3 more sources
Scanning holographic optical tweezers
Optics Letters, 2017 The aim of this Letter is to introduce a new optical tweezers approach, called scanning holographic optical tweezers (SHOT), which drastically increases the working area (WA) of the holographic-optical tweezers (HOT) approach, while maintaining tightly focused laser traps. A 12-fold increase in the WA is demonstrated.
L A, Shaw +3 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.Terminal domains of recombinant collagen‐like silk regulate hierarchical self‐assembly across molecular and material scales. We show that terminal domains of collagen‐like silk enhance triple‐helix stability and drive liquid–liquid phase separation, enabling reversible formation of fibers and self‐healing films.
Mengjie Shen +5 more
wiley +1 more source