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DC conduction studies in amylase
Author(s) -
Mishra Vinay,
Thomas S. C.,
Nath R.
Publication year - 1998
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/(sici)1097-0126(199811)47:3<331::aid-pi54>3.0.co;2-s
Subject(s) - schottky diode , thermal conduction , materials science , atmospheric temperature range , electrode , arrhenius equation , conductivity , electrical resistivity and conductivity , schottky barrier , analytical chemistry (journal) , optoelectronics , composite material , electrical engineering , chemistry , thermodynamics , activation energy , diode , physics , chromatography , engineering
DC conductivity measurements have been carried out on an enzyme amylase (EC 3.2.2.1) in solid pellet form, provided with silver‐coated electrodes. The results are presented in the form of current–voltage characteristics for the temperature range 300–360K. The analysis of the results obtained by plotting the temperature dependence of current density, Poole–Frenkel plots, Schottky plots, Richardson plots and Arrhenius plots shows that the Schottky–Richardson mechanism is responsible for the observed d.c. conduction in amylase. Furthermore, the presence of Schottky barriers at the metal electrode–insulator interface suggests that, by using silver electrodes, satisfactory contacts can be achieved for electrical investigations on biomaterials. © 1998 Society of Chemical Industry