organic-chemistry-2018-posters-abstracts

19 / 19

Organic Chemistry 2018 Journal of Organic & Inorganic Chemistry
ISSN: 2472-1123 Page 54
August 16-17, 2018
Dublin, Ireland
6th Edition of International
Conference and Exhibition on
Organic Chemistry
T his talk will exemplify our on-going interest and great effort
in developing efficient lithographic methodologies capable of
creating molecular electronic devices through the combination
of top-down micro/nanofabrication with bottom-up molecular
assembly. These devices use nanogapped carbon nanomaterials
(suchassingle-walledcarbonnanotubes(SWCNTs)andgraphene)
as point contacts formed by electron beam lithography and
precise oxygen plasma etching. Through robust amide linkages,
functionalmolecular bridges terminatedwithdiaminemoietiesare
covalently wired into the carboxylic acid-functionalized nanogaps
to form stable carbon electrode-molecule junctions with desired
functionalities. We have used these approaches to reveal the
dependence of the charge transport of individual metallo-DNA
duplexes on -stacking integrity, and fabricate molecular devices
capable of realizing label-free, real-time electrical detection of
biological interactions at the single-event level, or switching their
molecular conductance upon exposure to external stimuli, such
as ion, pH and light.
Xuefeng Guo
Peking University, P R China
J Org Inorg Chem 2018, Volume 4
DOI: 10.21767/2472-1123-C4-012
Carbon electrode-molecule junctions: a reliable platform
for molecular electronics