287 citations · 288 across the 4 of their papers we have counts for
5 papers
Transverse transport of microswimmers in oscillatory channel flows
Raghav Ram, Ashwin Ramachandran
Motile microorganisms inhabit oscillatory flows encountered in physiological and engineering systems, yet the influence of flow unsteadiness on their shear-induced preferential con…
Microfluidic Isotachophoresis: Theory and Applications
Ashwin Ramachandran, Juan G. Santiago
Isotachophoresis (ITP) is a versatile electrophoretic technique which can be used for sample preconcentration, separation, purification, mixing, and control and acceleration of che…
Frequency analysis and resonant operation for efficient capacitive deionization
Ashwin Ramachandran, Steven A. Hawks, Michael Stadermann +1
Capacitive deionization (CDI) performance metrics can vary widely with operating methods. We here develop a theory around and experimentally demonstrate a new operation for CDI tha…
Performance Metrics for the Objective Assessment of Capacitive Deionization Systems
Steven A. Hawks, Ashwin Ramachandran, Slawomir Porada +5
In the growing field of capacitive deionization (CDI), a number of performance metrics have emerged to describe the desalination process. Unfortunately, the separation conditions u…
Thermodynamics of Ion Separation by Electrosorption
Ali Hemmatifar, Ashwin Ramachandran, Kang Liu +3
We present a simple, top-down approach for the calculation of minimum energy consumption of electrosorptive ion separation using variational form of the (Gibbs) free energy. We foc…