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

被引:74
作者
Amdursky, Nadav [1 ,2 ]
Wang, Xuhua [3 ,4 ]
Meredith, Paul [5 ]
Bradley, Donal D. C. [3 ,4 ]
Stevens, Molly M. [1 ,2 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Dept Mat Bioengn, London SW7 2AZ, England
[2] Univ London Imperial Coll Sci Technol & Med, Inst Biomed Engn, London SW7 2AZ, England
[3] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2AZ, England
[4] Univ London Imperial Coll Sci Technol & Med, Ctr Plast Elect, London SW7 2AZ, England
[5] Univ Queensland, Ctr Organ Photon & Elect, Sch Math & Phys, Brisbane, Qld 4072, Australia
基金
英国惠康基金;
关键词
ELECTRICAL-CONDUCTION; TRANSPORT; PHOTOACIDS; BACTERIORHODOPSIN; RECOMBINATION; DIFFUSION; MEMBRANES; HYDROGEN; NAFION; WATER;
D O I
10.1002/adma.201505337
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
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. © 2016 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA."
引用
收藏
页码:2692 / 2698
页数:7
相关论文
共 46 条
[1]   THE GROTTHUSS MECHANISM [J].
AGMON, N .
CHEMICAL PHYSICS LETTERS, 1995, 244 (5-6) :456-462
[2]   Excited-State Proton Transfer of Photoacids Adsorbed on Biomaterials [J].
Amdursky, Nadav ;
Simkovitch, Ron ;
Huppert, Dan .
JOURNAL OF PHYSICAL CHEMISTRY B, 2014, 118 (48) :13859-13869
[3]   ELECTRICAL-CONDUCTION IN HYDRATED COLLAGEN .1. CONDUCTIVITY MECHANISMS [J].
BARDELMEYER, GH .
BIOPOLYMERS, 1973, 12 (10) :2289-2302
[4]  
Bottger H., 1985, Hopping conduction in solids
[5]   The ATP synthase - A splendid molecular machine [J].
Boyer, PD .
ANNUAL REVIEW OF BIOCHEMISTRY, 1997, 66 :717-749
[6]   PROTONIC CONDUCTIVITY OF HYDRATED LYSOZYME POWDERS AT MEGAHERTZ FREQUENCIES [J].
CAREI, G ;
GERACI, M ;
GIANSANTI, A ;
RUPLEY, JA .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1985, 82 (16) :5342-5346
[7]   Thermodynamics and proton transport in Nafion - II. Proton diffusion mechanisms and conductivity [J].
Choi, P ;
Jalani, NH ;
Datta, R .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (03) :E123-E130
[8]   Proton-Transfer Reaction Dynamics within the Human Serum Albumin Protein [J].
Cohen, Boiko ;
Martin Alvarez, Cristina ;
Alarcos Carmona, Noemi ;
Angel Organero, Juan ;
Douhal, Abderrazzak .
JOURNAL OF PHYSICAL CHEMISTRY B, 2011, 115 (23) :7637-7647
[9]   Synthesis of Pyridine Chitosan and its Protonic Conductivity [J].
Deng, Yingxin ;
Helms, Brett A. ;
Rolandi, Marco .
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2015, 53 (02) :211-214
[10]   H+-type and OH--type biological protonic semiconductors and complementary devices [J].
Deng, Yingxin ;
Josberger, Erik ;
Jin, Jungho ;
Rousdari, Anita Fadavi ;
Helms, Brett A. ;
Zhong, Chao ;
Anantram, M. P. ;
Rolandi, Marco .
SCIENTIFIC REPORTS, 2013, 3