A charge-dependent long-ranged force drives tailored assembly of matter in solution
Wang, Walker-Gibbons et al., Nature Nanotechnology 2024 (to appear)
Wide-field optical imaging of electrical charge and chemical reactions at the solid–liquid interface
Mahanta et al., PNAS 119 49 (2022) e220995511.
Single-Molecule Trapping and Measurement in a Nanostructured Lipid Bilayer System
Bespalova et al., Langmuir 38 (2022) 13923-13934.
Far-field electrostatic signatures of macromolecular 3D conformation
Kloes et al., Nano Letters 22 (2022) 7834-7840.
Opto-electrostatic determination of nucleic-acid double-helix dimensions and the structure of the molecule-solvent interface
Bespalova et al., Macromolecules 55 (2022) 6200-6210.
The role of surface chemistry in the orientational behavior of water at an interface
Walker et al., Journal of Physical Chemistry B 126 (2022) 4697-4710.
(Featured Article; ACS Editors' Choice)
Electrostatic free energies carry structural information on nucleic acid molecules in solution
Behjatian & Krishnan, Journal of Chemical Physics 156 (2022) 134201.
Nonmonotonic pair potentials in the interaction of like-charged objects in solution
Behjatian et al., Langmuir 38 (2022) 786-800.
Electroviscous effect for a confined nanosphere in solution
Behjatian et al., Physical Review E 102 (2020) 042607.
Interfacial solvation can explain attraction between like-charged objects in aqueous solution
Kubincova, Hunenberger & Krishnan, Journal of Chemical Physics 152 (2020) 104713.
(Featured Article; 2020 JCP Editors' Choice article)
Single-molecule trapping and measurement in solution
Bespalova, Mahanta & Krishnan, Current Opinion in Chemical Biology 51 (2019) 113-121.
Entropic trapping of a singly charged molecule in solution
Ruggeri & Krishnan, Nano Letters 18 (2018) 3773-3779.
Spectrally resolved single-molecule electrometry
Ruggeri & Krishnan, Journal of Chemical Physics 148 (2018) 123307.
(2017 Editors' Choice article in "Advanced Experimental Techniques")
Lattice diffusion of a single molecule in solution
Ruggeri & Krishnan, Physical Review E 96 (2017) 062406.
A simple model for electrical charge in globular macromolecules and linear polyelectrolytes in solution
Krishnan, Journal of Chemical Physics 146 (2017) 205101.

Single-molecule electrometry
Ruggeri et al., Nature Nanotechnology 12 (2017) 488-495.
Featured in: Nature Methods 2017, 14, 469 (Methods in Brief)

Measured electrical charge of SiO2 in polar and nonpolar media
Kokot, Bespalova & Krishnan, Journal of Chemical Physics 145 (2016) 194701 (Editor's Pick).

Information storage and retrieval in a single levitating colloidal particle
Myers et al., Nature Nanotechnology 10 (2015) 886-891.
Featured in: Nature 2015, 524, 391 (Research Highlights)
chemistryworld ( Aug 24, 2015

Measuring three-dimensional interaction potentials using optical interference
Mojarad et al., Optics Express 21 (2013) 9377-9389.
Electrostatic free energy for a confined nanoscale object in a fluid
Krishnan, Journal of Chemical Physics 138 (2013) 114906.
Angular trapping of anisometric nano-objects in a fluid
Celebrano et al., Nano Letters 12 (2012) 5791-5796.
Measuring the size and charge of single nanoscale objects in solution using an electrostatic fluidic trap
Mojarad & Krishnan, Nature Nanotechnology 7 (2012) 448-452.

Geometry-induced electrostatic trapping of nanometric objects in a fluid
Krishnan et al., Nature 467 (2010) 692-695.
Featured in:
Nature 2010, 467, 667-667 (News & Views)
Nature Nanotechnology 2010, 5, 759 (Research Highlights)
Lab on a Chip 2010, 10, 3195 (Research Highlights)
NRC Handelsblad Oct 16, 2010 (Leading Dutch daily)
Neue Zürcher Zeitung Oct 20, 2010 (Leading Swiss daily)
Spektrum der Wissenschaft June 2011 Oct 6, 2010, among several scientific news websites

Selected previous work

Spontaneous stretching of DNA in a two-dimensional nanoslit
Krishnan et al., Nano Letters 7 (2007) 1270-1275.
PCR in a Rayleigh-Bénard convection cell
Krishnan et al., Science 298 (2002) 793.
An integrated nanoliter DNA analysis device
Burns et al., Science 282 (1998) 484-487.

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