Optical tweezers in single-molecule biophysics

CJ Bustamante, YR Chemla, S Liu… - Nature Reviews Methods …, 2021 - nature.com
Optical tweezers have become the method of choice in single-molecule manipulation
studies. In this Primer, we first review the physical principles of optical tweezers and the …

Microfluidics: Fluid physics at the nanoliter scale

TM Squires, SR Quake - Reviews of modern physics, 2005 - APS
Microfabricated integrated circuits revolutionized computation by vastly reducing the space,
labor, and time required for calculations. Microfluidic systems hold similar promise for the …

Human cohesin compacts DNA by loop extrusion

Y Kim, Z Shi, H Zhang, IJ Finkelstein, H Yu - Science, 2019 - science.org
Cohesin is a chromosome-bound, multisubunit adenosine triphosphatase complex. After
loading onto chromosomes, it generates loops to regulate chromosome functions. It has …

Force measurements with the atomic force microscope: Technique, interpretation and applications

HJ Butt, B Cappella, M Kappl - Surface science reports, 2005 - Elsevier
The atomic force microscope (AFM) is not only a tool to image the topography of solid
surfaces at high resolution. It can also be used to measure force-versus-distance curves …

Overstretching B-DNA: the elastic response of individual double-stranded and single-stranded DNA molecules

SB Smith, Y Cui, C Bustamante - Science, 1996 - science.org
Single molecules of double-stranded DNA (dsDNA) were stretched with force-measuring
laser tweezers. Under a longitudinal stress of∼ 65 piconewtons (pN), dsDNA molecules in …

Reversible unfolding of individual titin immunoglobulin domains by AFM

M Rief, M Gautel, F Oesterhelt, JM Fernandez… - science, 1997 - science.org
Single-molecule atomic force microscopy (AFM) was used to investigate the mechanical
properties of titin, the giant sarcomeric protein of striated muscle. Individual titin molecules …

Investigation of soft matter nanomechanics by atomic force microscopy and optical tweezers: A comprehensive review

A Magazzù, C Marcuello - Nanomaterials, 2023 - mdpi.com
Soft matter exhibits a multitude of intrinsic physico-chemical attributes. Their mechanical
properties are crucial characteristics to define their performance. In this context, the rigidity of …

Nonlinear elasticity in biological gels

C Storm, JJ Pastore, FC MacKintosh, TC Lubensky… - Nature, 2005 - nature.com
The mechanical properties of soft biological tissues are essential to their physiological
function and cannot easily be duplicated by synthetic materials. Unlike simple polymer gels …

Biomechanics and biophysics of cancer cells

S Suresh - Acta biomaterialia, 2007 - Elsevier
The past decade has seen substantial growth in research into how changes in the
biomechanical and biophysical properties of cells and subcellular structures influence, and …

Modeling semiflexible polymer networks

CP Broedersz, FC MacKintosh - Reviews of Modern Physics, 2014 - APS
This is an overview of theoretical approaches to semiflexible polymers and their networks.
Such semiflexible polymers have large bending rigidities that can compete with the entropic …