Possible scenarios of DNA double-helix unzipping process in single-molecule manipulation experiments
Sign Up to like & getrecommendations! Published in 2018 at "European Biophysics Journal"
DOI: 10.1007/s00249-018-1313-3
Abstract: AbstractSingle-molecule experiments on DNA unzipping are analyzed on the basis of the mobility of nucleic bases in complementary pairs. Two possible scenarios of DNA double-helix unzipping are proposed and studied, using the atom–atom potential function… read more here.
Keywords: double helix; scenarios dna; scenario; dna double ... See more keywords
Optimization of Fresnel-zones-based Double Helix Point Spread Function and measurement of particle diffusion coefficient
Sign Up to like & getrecommendations! Published in 2022 at "Optics Communications"
DOI: 10.1016/j.optcom.2021.127411
Abstract: Abstract In the field of microscopic imaging, the double-helix point spread function (DH-PSF) based on the Fresnel zones is often used to locate the three-dimensional position of particles. The lower transfer function efficiency makes it… read more here.
Keywords: diffusion; fresnel; point spread; double helix ... See more keywords
DNA melting and energetics of the double helix.
Sign Up to like & getrecommendations! Published in 2018 at "Physics of life reviews"
DOI: 10.1016/j.plrev.2017.11.012
Abstract: Studying melting and energetics of the DNA double helix has been one of the major topics of molecular biophysics over the past six decades. The main objective of this article is to overview the current… read more here.
Keywords: double helix; dna; model; dna melting ... See more keywords
Chemical braking exhibited by ethynylhelicene (M)-nonamer in solution: Competitive reaction system of self-catalysis to form double-helix and approach towards equilibrium to form random-coil
Sign Up to like & getrecommendations! Published in 2017 at "Tetrahedron"
DOI: 10.1016/j.tet.2017.03.083
Abstract: Abstract Chemical braking occurs in a dilute solution during a structural change of ethynylhelicene (M)-nonamer from the metastable double-helix state to the random-coil state, being at equilibrium, where the reaction is initially rapid and then… read more here.
Keywords: chemical braking; double helix; random coil; form ... See more keywords
Opto-Electrostatic Determination of Nucleic Acid Double-Helix Dimensions and the Structure of the Molecule–Solvent Interface
Sign Up to like & getrecommendations! Published in 2022 at "Macromolecules"
DOI: 10.1021/acs.macromol.2c00657
Abstract: A DNA molecule is highly electrically charged in solution. The electrical potential at the molecular surface is known to vary strongly with the local geometry of the double helix and plays a pivotal role in… read more here.
Keywords: solvent interface; double helix; molecule solvent; field ... See more keywords
Discovery of Double Helix and Impact on Nanoscale to Mesoscale Crystalline Structures
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c03501
Abstract: Screw dislocations play a significant role in the growth of crystalline structures by providing a continuous source of surface steps which represent available sites for crystal growth. Here, we show that pure screw dislocations can… read more here.
Keywords: eshelby twists; screw dislocations; double helix; formation ... See more keywords
Silver-Mediated Double Helix: Structural Parameters for a Robust DNA Building Block
Sign Up to like & getrecommendations! Published in 2017 at "ACS Omega"
DOI: 10.1021/acsomega.7b01089
Abstract: The DNA double helix is a versatile building block used in DNA nanotechnology. To potentiate the discovery of new DNA nanoscale assemblies, recently, silver cations have been introduced to pair DNA strands by base–Ag+–base bonding… read more here.
Keywords: double helix; building block; dna;
Boosting Circularly Polarized Luminescence Performance by a Double π-Helix and Heteroannulation.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c04012
Abstract: Design challenges in the development of circularly polarized luminescence (CPL) materials are focused on balancing the luminescence dissymmetry factor (glum) and photoluminescence quantum yield (ΦPL) by regulating the electric (μ) and magnetic (m) transition dipole… read more here.
Keywords: cpl; luminescence; double helix; polarized luminescence ... See more keywords
Enhanced information content for three-dimensional localization and tracking using the double-helix point spread function with variable-angle illumination epifluorescence microscopy
Sign Up to like & getrecommendations! Published in 2017 at "Applied Physics Letters"
DOI: 10.1063/1.4984133
Abstract: The signal-to-noise ratio (SNR) and three-dimensional localization precision of a double helix point spread function (DH-PSF) can be significantly improved by applying variable-angle illumination epifluorescence microscopy (VAI, also commonly known as “pseudo-TIRF” or “quasi-TIRF”). Here,… read more here.
Keywords: three dimensional; double helix; microscopy; illumination ... See more keywords
Asymmetric base-pair opening drives helicase unwinding dynamics
Sign Up to like & getrecommendations! Published in 2019 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.1901086116
Abstract: Significance Six decades after DNA structure was first revealed, fundamental questions remain open. How is the entwined embrace of double-stranded nucleic acids formed or disrupted? How does the energetics underlying this process influence nucleic-acid processing… read more here.
Keywords: double helix; pair opening; base pair; base ... See more keywords
Double helix point spread function with variable spacing for precise 3D particle localization.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.482390
Abstract: To extend the axial depth of nanoscale 3D-localization microscopy, we propose here a splicing-type vortex singularities (SVS) phase mask, which has been meticulously optimized with a Fresnel approximation imaging inverse operation. The optimized SVS DH-PSF… read more here.
Keywords: helix point; function; localization; double helix ... See more keywords