Results 91 to 100 of about 30,016 (261)
Photonic Crystal Enhanced Microscopy on a 2D Photonic Crystal Surface
This work demonstrates the design, fabrication, and the first‐time test of a 2D photonic crystal surface for photonic resonator absorption microscopy. The designed surface uniformly enhances electromagnetic near fields, achieving > 100% improved detecting uniformity for surface‐captured AuNPs from a blocking biosensor assay aimed for detecting SARS‐CoV‐
Weinan Liu +5 more
wiley +1 more source
Optically-controlled platforms for transfection and single- and sub-cellular surgery [PDF]
Improving the resolution of biological research to the single- or sub-cellular level is of critical importance in a wide variety of processes and disease conditions.
Casey, DR, Glückstad, J, Villangca, M
core
This study describes the fabrication of arrays of luminal tissue constructs for 3D luminal tissue modeling. An oil or media‐filled reservoir between constructs serves as a liquid barrier or bridge to regulate communication between lumens within the array for modeling multi‐tissue interactions in vitro. Abstract Cell‐lined luminal structures are crucial
Mouhita Humayun +9 more
wiley +1 more source
Modelling of optical traps for aerosols
Experimental observations suggest that there are differences between the behavior of particles optically trapped in air and trapped in a liquid phase.
Ashkin +37 more
core +1 more source
Single-Molecule Magnetic Tweezer Analysis of Topoisomerases [PDF]
Magnetic tweezers (MT) provide a powerful single-molecule approach to study the mechanism of topoisomerases, giving the experimenter the ability to change and read out DNA topology in real time. By using diverse DNA substrates, one can study different aspects of topoisomerase function and arrive at a better mechanistic understanding of these ...
Kathryn H, Gunn +2 more
openaire +2 more sources
A graphene‐based bowtie plasmonic nanotweezer is designed and optimized using particle swarm optimization and transfer matrix analysis. The structure achieves strong field confinement, delivering trapping forces up to 6 nN W−1 for 10 nm bioparticles with sixfold lower power requirements than conventional designs.
Saba Ebrahimpanah +2 more
wiley +1 more source
Escherichia coli single-stranded DNA (ssDNA) binding protein (SSB) is the defining bacterial member of ssDNA binding proteins essential for DNA maintenance.
Jason C Bell +2 more
doaj +1 more source
Sagnac Interferometer Enhanced Particle Tracking in Optical Tweezers
A setup is proposed to enhance tracking of very small particles, by using optical tweezers embedded within a Sagnac interferometer. The achievable signal-to-noise ratio is shown to be enhanced over that for a standard optical tweezers setup.
Berne B J +9 more
core +1 more source
An introduction for multidrive and environment‐adaptive micro/nanorobotics: design and fabrication strategies, intelligent actuation, and their applications. Various intelligent actuation approaches—magnetic, acoustic, optical, chemical, and biological—can be synergistically designed to enhance flexibility and adaptive behavior for precision medicine ...
Aiqing Ma +10 more
wiley +1 more source
Rapid and precise manipulation of magnetic beads on the nano and micro scales is essential in many biosensing applications, such as separating target molecules from background molecules and detecting specific proteins and DNA sequences in plasma ...
Moshe Stern, Meir Cohen, Amos Danielli
doaj +1 more source

