Construction of force measuring optical tweezers instrumentation and investigations of biophysical properties of bacterial adhesion organelles [PDF]
Optical tweezers are a technique in which microscopic-sized particles, including living cells and bacteria, can be non-intrusively trapped with high accuracy solely using focused light. The technique has therefore become a powerful tool in the field of biophysics.
arxiv
Forces from highly focused laser beams: modeling, measurement and application to refractive index measurements [PDF]
The optical forces in optical tweezers can be robustly modeled over a broad range of parameters using generalsed Lorenz-Mie theory. We describe the procedure, and show how the combination of experimental measurement of properties of the trap coupled with
Heckenberg, N. R.+4 more
core +1 more source
Microfabrication using nano‐ to micron‐sized blocks has transformative potential for next‐gen electronics, optoelectronics, and materials. Traditional methods are limited by scalability and precision. STIC, a single‐laser system for precise colloid manipulation and immobilization using femtosecond lasers, is introduced that enables efficient 3D ...
Krishangi Krishna+4 more
wiley +1 more source
An approach for improving the distorted structured light in holographic optical tweezers [PDF]
Optical tweezers have been widely used for optical manipulation of various particles. At present, there are different type of optical tweezers. Among them, holographic optical tweezers have attracted growing attention as a powerful tools for optical trapping, optical transportation and optical sorting in many fields, due to its excellent properties ...
arxiv
High‐Throughput Single‐Nanowire Optoelectronic Characterization Using Microfluidic Technology
An ultrathin microfluidic platform enables high‐throughput, in‐line single particle characterization of semiconductor nanowires. Using correlative spectroscopy and imaging, analysis at 240 nanowires per minute, uncovering previously hidden details about intra‐wire disorder and inter‐wire inhomogeneity, is achieved.
Tharaka MDS Weeraddana+5 more
wiley +1 more source
Mechanochemistry: Fundamental Principles and Applications
In this review, the physicochemical principles of mechanochemistry are first clarified. Based on this foundation, the research basis and cutting‐edge scientific achievements in four areas are introduced: solid‐state organic chemistry, polymers, interface science, and biomechanochemistry.
Liang Dong+4 more
wiley +1 more source
Quantitative Super‐Resolution Imaging of Molecular Tension
Quantitative tension PAINT (qtPAINT) is a new method to quantify molecular tension at super‐resolution by exploiting force‐dependent DNA oligonucleotide dissociation kinetics. Combining hairpin tension probes and molecular‐beacon imagers, qtPAINT achieves 9–30 pN continuous force quantification range with 30–120 nm spatial and minute‐scale temporal ...
Seong Ho Kim+4 more
wiley +1 more source
Ultralarge multimers of von Willebrand factor form spontaneous high-strength bonds with the platelet glycoprotein Ib-IX complex: studies using optical tweezers [PDF]
Maneesh Arya+7 more
openalex +1 more source
Microbiome Single Cell Atlases Generated with a Commercial Instrument
Single cell sequencing is valuable for dissecting complex systems and uncovering unique features in individual cell types. However, tools for single cell microbial analysis are limited. Easily Accessible Single microbe sequencing (EASi‐seq), which adapts a commercially available single cell platform for efficient sequencing of single microbial genomes ...
Xiangpeng Li+8 more
wiley +1 more source
Optical Tweezers with AC Dielectric Levitation: A Powerful Approach to Microparticle Manipulation [PDF]
Optical tweezers, with their high precision, dynamic control, and non-invasiveness, are increasingly important in scientific research and applications at the micro and nano scales. However, manipulation by optical tweezers is challenged by adsorption forces, including van der Waals forces, capillary forces, and electrostatic forces, which are present ...
arxiv