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Photo of Sumita Pennathur

Sumita Pennathur

Associate Professor
Mechanical Engineering
UC Santa Barbara
Phone:
+1 805-893-5510
Email:
sumita@engineering.ucsb.edu
Office:
Room 2330, Engineering II, MC-5070, University of California
Website:
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Nanoscale transport phenomena, micro- and nano-scale fabrication, electrokinetics, and nanofluidic system design. Research includes the optimization and development of on-chip DNA and protein analysis tools, fabrication of nanofluidic devices, and the development of nanofluidic energy devices.

Displaying 1 - 20 of 27

ICB Supported Publications

Confinement effects on DNA hybridization in electrokinetic micro- and nanofluidic systems

Alex M. Downs, Christopher McCallum and Sumita Pennathur
Electrophoresis,
10.1002/elps.201800356

Energy Harvesting with a Liquid-Metal Microfluidic Influence Machine

Christopher Conner, Tim de Visser, Joshua Loessberg, Sam Sherman, Andrew Smith, Shuo Ma, Maria Teresa Napoli, Sumita Pennathur, and David Weld
Physical Review Applied,
10.1103/PhysRevApplied.9.044008

A repeatable and scalable fabrication method for sharp, hollow silicon microneedles

H. Kim, L. S. Theogarajan and S. Pennathur
Journal of Micromechanics and Microengineering,
10.1088/1361-6439/aaa6a8

An Experimental Approach to Systematically Probe Charge Inversion in Nanofluidic Channels

Kuang-Hua Chou, Christopher McCallum, Dirk Gillespie and Sumita Pennathur
Nano Letters,
10.1021/acs.nanolett.7b04736

Analyte preconcentration in nanofluidic channels with nonuniform zeta potential

A. Eden, C. McCallum, B. D. Storey, S. Pennathur and C. D. Meinhart
Physical Review Fluids,
10.1103/PhysRevFluids.2.124203

DNA-Stabilized Silver Nanoclusters as Specific, Ratiometric Fluorescent Dopamine Sensors

Jackson T. Del Bonis-O’Donnell, Ami Thakrar, Jeremy Wain Hirschberg, Daniel Vong, Bridget N. Queenan, Deborah K. Fygenson and Sumita Pennathur
ACS Chemical Neuroscience,
10.1021/acschemneuro.7b00444

A process to fabricate fused silica nanofluidic devices with embedded electrodes using an optimized room temperature bonding technique

Boden, S.A., Karam, P. R., Schmidt, A. and Pennathur S.
Applied Physics Letters,
10.1063/1.4982968

Optimal MEMS device for mobility and zeta potential measurements using DC electrophoresis

Karam, P.R., Dukhin, A. and Pennathur, S.
Electrophoresis,
10.1002/elps.201700029

Two-dimensional electric double layer structure with heterogeneous surface charge

McCallum, C., Pennathur S. and Gillespie, D.
Langmuir,
10.1021/acs.langmuir.7b00731

Numerical investigation of micro- and nanochannel deformation due to discontinuous electroosmotic flow

de Rutte, J. M., Janssen, K. G. H., Tas, N. R., Eijkel, J. C. T. and Pennathur, S.
Microfluidics and Nanofluidics,
10.1007/s10404-016-1815-1

A universal design for a dna probe providing ratiometric fluorescence detection by generation of silver nanoclusters

Del Bonis-O’Donnell, J. T., Vong, D., Pennathur, S. and Fygenson, D. K.
Nanoscale,
10.1039/c6nr03827a

Electrophoretic mobility of spherical particles in bounded domain

Liu, Y.-W., Pennathur, S. and Meinhart, C. D.
Journal of Colloid and Interface Science,
10.1016/j.jcis.2015.08.039

Changes in spectra and conformation of hairpin dna-stabilized silver nanoclusters induced by stem sequence perturbations

Del Bonis-O’Donnell, J. T., Pennathur, S. and Fygenson, D. K.
Langmuir,
10.1021/acs.langmuir.5b03934

Interplay between peptide length, ionic strength and pH in electrophoretic separations of polyglutamat

Venkateswaran, N. J., Kogot, J. M. and Pennathur, S.
Journal of Analytical & Bioanalytical Techniques,
10.4172/2155-9872.S13-004

Quantitative characterization of the colloidal stability of metallic nanoparticles using UV−vis absorbance spectroscopy

T. R. Ray, B. Lettiere, J. de Rutte, and S. Pennathur
Langmuir,
10.1021/la504511j

Fluorescent silver nanocluster DNA probes for multiplexed detection using microfluidic capillary electrophoresis

J. T. Del Bonis-O’Donnell, D. K. Fygenson, and S. Pennathur
The Analyst,
10.1039/c4an01735h

Hybridization thermodynamics of dna oligonucleotides during microchip capillary electrophoresis

T. M. Wynne, C. McCallum, J. T. Del Bonis-O’Donnell, P. Crisalli, and S. Pennathur
Analytical Chemistry,
10.1021/ac504209m

Label free detection of nucleic acids by modulating nanochannel surfaces

P. Crisalli, C. McCallum, and S. Pennathur
Chemical Communications,
10.1039/c4cc09599e

Electrophoretic mobility of a spherical nanoparticle in a nanochannel

Y-W. Liu, S. Pennathur, and C. M. Meinhart
Physics of Fluids,
10.1063/1.4901330

Low temperature fabrication and surface modification methods for fused silica micro- and nanochannels

S. Pennathur and P. Crisalli
MRS Proc.,
10.1557/opl.2014.32
Emblems