5 papers
Voltage dynamics of spherical membranes from single ion channel currents
Sirui Ning, Joshua B. Fernandes, Karthik Shekhar +1
Ion channels and pumps drive ion-selective currents through cell membranes at localized sites, yet a cell's electrical state is routinely summarized by a single transmembrane volta…
Thickness effects in the electromechanical stability of charged biological membranes
Sirui Ning, Yannick A. D. Omar, Karthik Shekhar +1
Understanding how electric fields destabilize biological membranes is important for electroporation-based technologies and bioelectronic interfaces. However, theoretical descriptio…
Electrochemical response of biological membranes to localized currents and external electric fields
Joshua B. Fernandes, Hyeongjoo Row, Kranthi K. Mandadapu +1
Electrochemical phenomena in biology often unfold in confined geometries where micrometer- to millimeter-scale domains coexist with nanometer-scale interfacial diffuse charge layer…
Capacitive response of biological membranes
Jafar Farhadi, Joshua B. Fernandes, Karthik Shekhar +1
We present a minimal model to analyze the capacitive response of a biological membrane subjected to a step voltage via blocking electrodes. Through a perturbative analysis of the u…
Odd Viscodiffusive Fluids
Alhad Deshpande, Cory Hargus, Karthik Shekhar +1
We introduce a theory of "odd viscodiffusive fluids," which exhibit three-dimensional odd transport phenomena through the coupling of viscous and diffusive transport. In these flui…