You need JavaScript to view this

Synthesis of amphiphilic macrocyclic molecules from family of aza-porphyrins and study in Langmuir-Blodgett films; Synthese de molecules macrocycliques amphiphiles de la famille des azaporphyrines et etude en films de Langmuir-Blodgett

Thesis/Dissertation:

Abstract

The cellular automata, also called formal neurons, directly inspired by the knowledge concerning the nervous system, are able to mimic some basic processes of brain, as shape recognition, connecting memory, information sorting... This work aims to build a molecular structure able to fit the working rules of a bidimensional cellular automata. So, amphiphilic molecules belonging to the aza-porphyrin family are synthesized and organized into a planar paving by the Langmuir-Blodgett technique. The regular structure of the outcoming ultra-thin films is studied by linear dichroism and anisotropic electron spin resonance. The physico-chemical behaviour of the amphiphilic molecules is studied and brings about an explanation of the redox phenomena which are observed on the monomolecular film on the water surface. So are we able to outline the future chemical addressing ways of the bidimensional cellular automata. In the end of this dissertation, different ways likely to insure covalent bindings between the active sites and allow the transfer of information within the cellular network are discussed. (author) [French] Les reseaux d'automates, aussi appeles neurones formels, directement inspires par les connaissances nouvelles concernant le fonctionnement du systeme nerveux, sont a l'heure actuelle capables de reproduire certaines operations fondamentales du cerveau, telles que la reconnaissance  More>>
Authors:
Publication Date:
Mar 04, 1988
Product Type:
Thesis/Dissertation
Report Number:
CEA-R-5445
Resource Relation:
Other Information: 255 refs.; Available from the INIS Liaison Officer for France, see the 'INIS contacts' section of the INIS website for current contact and E-mail addresses: http://www.iaea.org/inis/Contacts/; These Docteur de l'Universite Paris VI
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CHEMICAL PROPERTIES; COVALENCE; DATA PROCESSING; DATA TRANSMISSION; DICHROISM; ELECTRON SPIN RESONANCE; HETEROCYCLIC COMPOUNDS; MOLECULAR STRUCTURE; MOLECULES; NERVE CELLS; NEURAL NETWORKS; PHYSICAL PROPERTIES; PROTEINS; STRUCTURE-ACTIVITY RELATIONSHIPS; SYNTHESIS; THIN FILM STORAGE DEVICES; THIN FILMS
OSTI ID:
22264681
Research Organizations:
Universite Pierre et Marie Curie - Paris VI (France); Centre d'Etudes Nucleaires de Saclay, Institut de Recherche Technologique et de Developpement Industriel, Division d'Etudes de Separation Isotopique et de Chimie Physique, Departement de Physico-Chimie, Service de Chimie Moleculaire (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR1401943085911
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
248 page(s)
Announcement Date:
Sep 18, 2014

Thesis/Dissertation:

Citation Formats

Palacin, Serge. Synthesis of amphiphilic macrocyclic molecules from family of aza-porphyrins and study in Langmuir-Blodgett films; Synthese de molecules macrocycliques amphiphiles de la famille des azaporphyrines et etude en films de Langmuir-Blodgett. France: N. p., 1988. Web.
Palacin, Serge. Synthesis of amphiphilic macrocyclic molecules from family of aza-porphyrins and study in Langmuir-Blodgett films; Synthese de molecules macrocycliques amphiphiles de la famille des azaporphyrines et etude en films de Langmuir-Blodgett. France.
Palacin, Serge. 1988. "Synthesis of amphiphilic macrocyclic molecules from family of aza-porphyrins and study in Langmuir-Blodgett films; Synthese de molecules macrocycliques amphiphiles de la famille des azaporphyrines et etude en films de Langmuir-Blodgett." France.
@misc{etde_22264681,
title = {Synthesis of amphiphilic macrocyclic molecules from family of aza-porphyrins and study in Langmuir-Blodgett films; Synthese de molecules macrocycliques amphiphiles de la famille des azaporphyrines et etude en films de Langmuir-Blodgett}
author = {Palacin, Serge}
abstractNote = {The cellular automata, also called formal neurons, directly inspired by the knowledge concerning the nervous system, are able to mimic some basic processes of brain, as shape recognition, connecting memory, information sorting... This work aims to build a molecular structure able to fit the working rules of a bidimensional cellular automata. So, amphiphilic molecules belonging to the aza-porphyrin family are synthesized and organized into a planar paving by the Langmuir-Blodgett technique. The regular structure of the outcoming ultra-thin films is studied by linear dichroism and anisotropic electron spin resonance. The physico-chemical behaviour of the amphiphilic molecules is studied and brings about an explanation of the redox phenomena which are observed on the monomolecular film on the water surface. So are we able to outline the future chemical addressing ways of the bidimensional cellular automata. In the end of this dissertation, different ways likely to insure covalent bindings between the active sites and allow the transfer of information within the cellular network are discussed. (author) [French] Les reseaux d'automates, aussi appeles neurones formels, directement inspires par les connaissances nouvelles concernant le fonctionnement du systeme nerveux, sont a l'heure actuelle capables de reproduire certaines operations fondamentales du cerveau, telles que la reconnaissance de forme, la memoire associative, le tri d'information... Le travail a pour but de realiser une structure moleculaire susceptible d'obeir aux regles de fonctionnement d'un automate cellulaire bi-dimensionnel. Dans ce but, des molecules amphiphiles de la famille des azaporphyrines sont synthetisees et organisees en un pavage plan par la methode de Langmuir-Blodgett. La structure reguliere des films ultraminces obtenus est determinee par dichroisme lineaire et resonance paramagnetique electronique anisotrope. Les caracteristiques physico-chimiques des molecules amphiphiles sont etudiees et permettent une interpretation des phenomenes redox interfaciaux observes en film monomoleculaire a la surface de l'eau. Sont ainsi degagees les voies d'adressage chimique de la structure d'automate cellulaire bidimensionnel. En fin de memoire sont commentees les diverses methodes qui pourront permettre d'etablir entre les sites actifs organises des liens covalents assurant le transfert d'information au sein du reseau cellulaire. (auteur)}
place = {France}
year = {1988}
month = {Mar}
}