Results 71 to 80 of about 39,013 (312)
Molecules, 2015 Ditopic binding of various dinitrogen compounds to three bisporphyrin molecular tweezers with spacers of varying conformational rigidity, incorporating the planar enediyne (1), the helical stiff stilbene (2), or the semi-rigid glycoluril motif fused to ...
Magnus Blom +7 more
doaj +1 more source
Ray Optics Model for Optical Trapping of Biconcave Red Blood Cells
Micromachines, 2022 Red blood cells (RBCs) or erythrocytes are essential for oxygenating the peripherical tissue in the human body. Impairment of their physical properties may lead to severe diseases. Optical tweezers have in experiments been shown to be a powerful tool for
Riccardo Tognato, Philip H. Jones
doaj +1 more source
Advanced Healthcare Materials, EarlyView.A kirigami‐inspired breathable smart contact lens is reported for wireless monitoring of corneal hypoxia and microenvironment. The ultrathin (55 µm) and flexible sensing device enables digitalized, in situ and precise monitoring of dissolved oxygen, humidity, and temperature (R2 >0.98).
Jiaxue Zhu +11 more
wiley +1 more source
Alkaline earth atoms in optical tweezers [PDF]
Phys. Rev. X 8, 041055 (2018), 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. We achieve high-fidelity single-atom-resolved imaging by detecting photons from the broad singlet transition while cooling on the narrow intercombination line, and extend
arxiv +1 more source
Molecular Tweezers: Concepts and Applications [PDF]
ChemPhysChem, 2011 Taken to the molecular level, the concept of "tweezers" opens a rich and fascinating field at the convergence of molecular recognition, biomimetic chemistry and nanomachines. Composed of a spacer bridging two interaction sites, the behaviour of molecular tweezers is strongly influenced by the flexibility of their spacer.
Leblond, Jeanne, Petitjean, Anne
openaire +4 more sources
Manipulating Ferroelectric Topological Polar Structures with Twisted Light
Advanced Materials, EarlyView.We demonstrate dynamic control of ferroelectric order in quasi‐2D CsBiNb2O7 using twisted ultraviolet light carrying orbital angular momentum. Our approach harnesses non‐resonant multiphoton absorption and induced strain to modulate topological of ferroelectric polarization textures.
Nimish P. Nazirkar +10 more
wiley +1 more source
Micro-Dumbbells—A Versatile Tool for Optical Tweezers
Micromachines, 2018 Manipulation of micro- and nano-sized objects with optical tweezers is a well-established, albeit still evolving technique. While many objects can be trapped directly with focused laser beam(s), for some applications indirect manipulation with tweezers ...
Weronika Lamperska +4 more
doaj +1 more source
On chip shapeable optical tweezers [PDF]
Scientific Reports, 2013 Particles manipulation with optical forces is known as optical tweezing. While tweezing in free space with laser beams was established in the 1980s, integrating the optical tweezers on a chip is a challenging task. Recent experiments with plasmonic nanoantennas, microring resonators, and photonic crystal nanocavities have demonstrated optical trapping.
Renaut, C. +7 more
openaire +5 more sources
Robust Full‐Surface Bonding of Substrate and Electrode for Ultra‐Flexible Sensor Integration
Advanced Materials, EarlyView.A direct hybrid bonding method that enables both gold and parylene bonding without adhesives is developed. This technique achieves full‐surface direct bonding of electrodes and substrates in flexible electronic connections. The method offers high flexibility, stable mechanical durability, and high‐resolution interconnections, accommodating varying ...
Masahito Takakuwa +9 more
wiley +1 more source
Spatially selective manipulation of cells with single-beam acoustical tweezers
Nature Communications, 2020 Acoustical tweezers can exert forces several orders of magnitude greater than optical tweezers but the absence of spatial selectivity and their limited resolution has prevented their use for many applications in microbiology.
Michael Baudoin +9 more
doaj +1 more source