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Chemo-ionic-conformational memory from reactive dense gels: a way to explore new multivalent memories and brain memory

Published online by Cambridge University Press:  16 February 2015

Toribio F. Otero  and
Jose G. Martinez
Toribio F. Otero
Affiliation:
Center for Electrochemistry and Intelligent Materials (CEMI), Universidad Politécnica de Cartagena, Cartagena, 30203, Spain
Jose G. Martinez
Affiliation:
Center for Electrochemistry and Intelligent Materials (CEMI), Universidad Politécnica de Cartagena, Cartagena, 30203, Spain
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Abstract

So far we ignore how brain stores memory. Neurons communicate by pulses where the charges are carried between them by ions flowing through channels. Those pulses present a characteristic maximum related to the conformational movements of the channel protein opening and closing. Electrochemical responses from dense gel electrodes of conducting polymers mimic those pulses. Here we proved that the biomimetic pulse includes simultaneously electrical, chemical and conformational information related to the energy stored by the initial conformational packed state of the polymer. This energetic memory increases linearly with the potential used to reduce and pack (write) the initial state: hundreds of different values can be written (stored) in a full reproducible way (multivalent memory). Every state constitutes a chemo-ionic-conformational (CHEMICONF) memory. Each multivalent memory is read and erased by the reverse electrochemical reaction. Crosslinking states produce permanent memories not erased while reading. Developing CHEMICONF memories can provide new hypothesis to reveal brain memory mechanisms.

Keywords

biomimetic (chemical reaction)memorymacromolecular structure
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1729: Symposium M – Materials and Technology for Nonvolatile Memories , 2015 , pp. 137 - 142
Copyright
Copyright © Materials Research Society 2015 

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References

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