Long-Range Proton Conduction across Free-Standing Serum Albumin Mats.

Amdursky, Nadav; Wang, Xuhua; Meredith, Paul; Bradley, Donal D C; Stevens, Molly M · Adv Mater · 2016

basic_science · Level V

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Abstract

Free-standing serum-albumin mats can transport protons over millimetre length-scales. The results of photoinduced proton transfer and voltage-driven proton-conductivity measurements, together with temperature-dependent and isotope-effect studies, suggest that oxo-amino-acids of the protein serum albumin play a major role in the translocation of protons via an "over-the-barrier" hopping mechanism. The use of proton-conducting protein mats opens new possibilities for bioelectronic interfaces.

Medical subject headings