Search Results - "Nesbitt, David J."
-
1
Origin and control of blinking in quantum dots
Published in Nature nanotechnology (01-08-2016)“…Semiconductor nanocrystals offer an enormous diversity of device applications that have been potentially limited by intermittent fluorescence intensity or…”
Get full text
Journal Article -
2
Effects of Molecular Crowders on Single-Molecule Nucleic Acid Folding: Temperature-Dependent Studies Reveal True Crowding vs Enthalpic Interactions
Published in The journal of physical chemistry. B (09-12-2021)“…Biomolecular folding in cells can be strongly influenced by spatial overlap/excluded volume interactions (i.e., “crowding”) with intracellular solutes. As a…”
Get full text
Journal Article -
3
Molecular-crowding effects on single-molecule RNA folding/unfolding thermodynamics and kinetics
Published in Proceedings of the National Academy of Sciences - PNAS (10-06-2014)“…The effects of “molecular crowding” on elementary biochemical processes due to high solute concentrations are poorly understood and yet clearly essential to…”
Get full text
Journal Article -
4
Ultrasensitive multispecies spectroscopic breath analysis for real-time health monitoring and diagnostics
Published in Proceedings of the National Academy of Sciences - PNAS (05-10-2021)“…Breath analysis enables rapid, noninvasive diagnostics, as well as long-term monitoring of human health, through the identification and quantification of…”
Get full text
Journal Article -
5
Single-Molecule Kinetics Reveal Cation-Promoted DNA Duplex Formation Through Ordering of Single-Stranded Helices
Published in Biophysical journal (06-08-2013)“…In this work, the kinetics of short, fully complementary oligonucleotides are investigated at the single-molecule level. Constructs 6–9 bp in length exhibit…”
Get full text
Journal Article -
6
Plasmonic nanostar photocathodes for optically-controlled directional currents
Published in Nature communications (13-03-2020)“…Plasmonic nanocathodes offer unique opportunities for optically driving, switching, and steering femtosecond photocurrents in nanoelectronic devices and pulsed…”
Get full text
Journal Article -
7
Definition of the hydrogen bond (IUPAC Recommendations 2011)
Published in Pure and applied chemistry (08-07-2011)“…A novel definition for the hydrogen bond is recommended here. It takes into account the theoretical and experimental knowledge acquired over the past century…”
Get full text
Journal Article -
8
Modified Power Law Behavior in Quantum Dot Blinking: A Novel Role for Biexcitons and Auger Ionization
Published in Nano letters (01-01-2009)“…Single photon detection methods are used to acquire fluorescence trajectories from single CdSe/ZnS colloidal quantum dots (QDs) and analyze their blinking…”
Get full text
Journal Article -
9
Solution Control of Radiative and Nonradiative Lifetimes: A Novel Contribution to Quantum Dot Blinking Suppression
Published in Nano letters (01-01-2008)“…Time-correlated single photon counting methods are used with confocal microscopy and maximum likelihood estimation analysis to obtain fluorescence lifetime…”
Get full text
Journal Article -
10
Defining the hydrogen bond: An account (IUPAC Technical Report)
Published in Pure and applied chemistry (08-07-2011)“…The term “hydrogen bond” has been used in the literature for nearly a century now. While its importance has been realized by physicists, chemists, biologists,…”
Get full text
Journal Article -
11
Tests of Kramers’ Theory at the Single-Molecule Level: Evidence for Folding of an Isolated RNA Tertiary Interaction at the Viscous Speed Limit
Published in The journal of physical chemistry. B (27-09-2018)“…Dissipation and friction influence the conformational dynamics of biological polymers as they traverse barriers on rugged free energy surfaces. It is well…”
Get full text
Journal Article -
12
An RNA folding motif: GNRA tetraloop-receptor interactions
Published in Quarterly reviews of biophysics (01-08-2013)“…Nearly two decades after Westhof and Michel first proposed that RNA tetraloops may interact with distal helices, tetraloop–receptor interactions have been…”
Get more information
Journal Article -
13
Kinetic and Thermodynamic Origins of Osmolyte-Influenced Nucleic Acid Folding
Published in The journal of physical chemistry. B (05-03-2015)“…The influential role of monovalent and divalent metal cations in facilitating conformational transitions in both RNA and DNA has been a target of intense…”
Get full text
Journal Article -
14
Entropic origin of Mg2+-facilitated RNA folding
Published in Proceedings of the National Academy of Sciences - PNAS (21-02-2012)“…Mg2+ is essential for the proper folding and function of RNA, though the effect of Mg2+ concentration on the free energy, enthalpy, and entropy landscapes of…”
Get full text
Journal Article -
15
Coherent Multiphoton Photoelectron Emission from Single Au Nanorods: The Critical Role of Plasmonic Electric Near-Field Enhancement
Published in ACS nano (22-01-2013)“…Electron emission from individual Au nanorods deposited on indium–tin–oxide (ITO) following excitation with femtosecond laser pulses near the rod longitudinal…”
Get full text
Journal Article -
16
Single-Molecule FRET Reveals Three Conformations for the TLS Domain of Brome Mosaic Virus Genome
Published in Biophysical journal (15-12-2015)“…Metabolite-dependent conformational switching in RNA riboswitches is now widely accepted as a critical regulatory mechanism for gene expression in bacterial…”
Get full text
Journal Article -
17
Plasmonic Near-Electric Field Enhancement Effects in Ultrafast Photoelectron Emission: Correlated Spatial and Laser Polarization Microscopy Studies of Individual Ag Nanocubes
Published in Nano letters (12-09-2012)“…Electron emission from single, supported Ag nanocubes excited with ultrafast laser pulses (λ = 800 nm) is studied via spatial and polarization correlated (i)…”
Get full text
Journal Article -
18
Mechanistic Insights into Cofactor-Dependent Coupling of RNA Folding and mRNA Transcription/Translation by a Cobalamin Riboswitch
Published in Cell reports (Cambridge) (03-05-2016)“…Riboswitches are mRNA elements regulating gene expression in response to direct binding of a metabolite. While these RNAs are increasingly well understood with…”
Get full text
Journal Article -
19
Inelastic Scattering of Radicals at the Gas–Ionic Liquid Interface: Probing Surface Dynamics of BMIM–Cl, BMIM–BF4, and BMIM–Tf2N by Rovibronic Scattering of NO [2Π1/2(0.5)]
Published in Journal of physical chemistry. C (12-07-2012)“…Quantum state resolved inelastic collision dynamics at the gas–room temperature ionic liquid (RTIL) interface have been explored by scattering of an NO…”
Get full text
Journal Article -
20
Pulsed IR Heating Studies of Single-Molecule DNA Duplex Dissociation Kinetics and Thermodynamics
Published in Biophysical journal (07-01-2014)“…Single-molecule fluorescence spectroscopy is a powerful technique that makes it possible to observe the conformational dynamics associated with biomolecular…”
Get full text
Journal Article