WebMay 6, 1994 · Single molecules of DNA, visualized in video fluorescence microscopy, were stretched to full extension in a flow, and their relaxation was measured when the flow stopped. The molecules, attached by one end to a 1-micrometer bead, were manipulated in an aqueous solution with optical tweezers. WebJul 9, 2004 · By allowing the manipulation of individual molecules, optical tweezers reveal how these biological systems work at the molecular level. On page 222 of this issue, Case …
Optimization of nonlinear optical tweezers suitable to stretch DNA ...
WebApr 10, 2024 · Measuring the DNA extension as function of the applied force we reproduced the monotonic increase in the DNA extension, as well as the force-induced B- to S-form transition at ≈65 pN, characteristic to double-stranded DNA. ... The latter is typically the case in optical tweezers bead-assays applied to individual motors stepping along a filament. WebJan 11, 2024 · A Self-Made Optical Tweezers Integrated Upconversion Luminescence Confocal Scanning Instrument Enables Stable and Noninvasive Long-Term In Situ Imaging … lite blue with white colours background
Block lab - Optical tweezers - Stanford University
WebMar 26, 2014 · Optical tweezers analysis of DNA-protein complexes Optical tweezers analysis of DNA-protein complexes . 2014 Mar 26;114 (6):3087-119. doi: … WebFeb 14, 2015 · Abstract We use a double nanohole (DNH) optical tweezer with two trapping lasers beating to excite the vibrational modes of single-stranded DNA (ssDNA) fragments in the extremely high frequency range. We find the resonant vibration frequency of a 20 base ssDNA to be 40 GHz. Webmeasurements of the plateau shear modulus, Gp, we conclude that DNA generally behaves like a semiflexible polymer in a good solvent even at low ionic strength. We have thus … imperial surgery exmouth devon