title: Protein adsorption enhanced radio-frequency heating of silica nanoparticles.
abstract: Measurements of specific-absorption-rate (SAR) of silica 30, 50, and 100 nm nanoparticles (NP) suspended in water were carried out at 30 MHz in 7 kV/m radio-frequency (rf)electric field. Size dependent, NP-suspension interface related heating of silica NP was observed. To investigate a possible mechanism of heating, bovine serum albumin was adsorbed on the surface of silica NPs in suspension. It resulted in significant enhancement of SAR when compared to bare silica NPs. A calorimetric andrfloss model was used to calculate effective conductivity of silica NP with/without adsorbed albumin as a function of silica size and albumin concentration.
authors: Electrical and Computer Engineering Department, University of Houston, Houston, Texas 77204, USA ; Texas Center for Superconductivity, University of Houston, Houston, Texas 77204, USA.
authors: Jarek
authors: J
authors: Wosik
authors: Rohit
authors: R
authors: Pande
authors: Leiming
authors: L
authors: Xie
authors: Dhivya
authors: D
authors: Ketharnath
authors: Srimeenakshi
authors: S
authors: Srinivasan
authors: Biana
authors: B
authors: Godin
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