Sequence Dependence of Excess Electron Transfer in DNA†

2010 ◽  
Vol 114 (45) ◽  
pp. 14657-14663 ◽  
Author(s):  
Kazuki Tainaka ◽  
Mamoru Fujitsuka ◽  
Tadao Takada ◽  
Kiyohiko Kawai ◽  
Tetsuro Majima
Keyword(s):  
Electron Transfer ◽  
Excess Electron ◽  
Sequence Dependence

Complex Sequence Dependence by Excess-Electron Transfer through DNA with Different Strength Electron Acceptors

2006 ◽  
Vol 45 (2) ◽  
pp. 318-321 ◽  
Author(s):  
Antonio Manetto ◽  
Sascha Breeger ◽  
Chryssostomos Chatgilialoglu ◽  
Thomas Carell
Keyword(s):  
Electron Transfer ◽  
Electron Acceptors ◽  
Excess Electron ◽  
Sequence Dependence ◽  
Complex Sequence

scholarly journals Electrical characteristics of amyloid beta peptides in vertical junctions

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Sohyeon Seo ◽  
Jinju Lee ◽  
Jungsue Choi ◽  
G. Hwan Park ◽  
Yeseul Hong ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Electron Transport ◽  
Amyloid Beta ◽  
Field Effect Transistors ◽  
Brain Diseases ◽  
Electrical Characteristics ◽  
Transport Pathway ◽  
Sequence Dependence ◽  
Aβ Oligomers ◽  
Aβ Peptides

AbstractAssembled amyloid beta (Aβ) peptides have been considered pathological assemblies involved in human brain diseases, and the electron transfer or electron transport characteristics of Aβ are important for the formation of structured assemblies. Here, we report the electrical characteristics of surface-assembled Aβ peptides similar to those observed in Alzheimer’s patients. These characteristics correlate to their electron transfer characteristics. Electrical current–voltage plots of Aβ vertical junction devices show the Aβ sequence dependence of the current densities at both Aβ monomers (mono-Aβs) and Aβ oligomers (oli-Aβs), while Aβ sequence dependence is not clearly observed in the electrical characteristics of Aβ planar field effect transistors (FETs). In particular, surface oligomerization of Aβ peptides drastically decreases the activity of electron transfer, which presents a change in the electron transport pathway in the Aβ vertical junctions. Electron transport at oli-Aβ junctions is symmetric (tunneling/tunneling) due to the weak and voltage-independent coupling of the less redox-reactive oli-Aβ to the contacts, while that at mono-Aβ junctions is asymmetric (hopping/tunneling) due to redox levels of mono-Aβ voltage-dependently coupled with contact electrodes. Consequently, through vertical junctions, the sequence- and conformation-dependent electrical characteristics of Aβs can reveal their electron transfer activities.

Excess Electron Transfer Driven DNA Does Not Depend on the Transfer Direction

2004 ◽  
Vol 116 (18) ◽  
pp. 2373-2373
Author(s):  
Clemens Haas ◽  
Katja Kräling ◽  
Michaela Cichon ◽  
Nicole Rahe ◽  
Thomas Carell
Keyword(s):  
Electron Transfer ◽  
Excess Electron ◽  
Transfer Direction

Compatible Injection and Detection Systems for Studying the Kinetics of Excess Electron Transfer

2007 ◽  
Vol 9 (9) ◽  
pp. 1837-1840 ◽  
Author(s):  
Libin Xu ◽  
Jing Jin ◽  
Mukul Lal ◽  
Pierre Daublain ◽  
Martin Newcomb
Keyword(s):  
Electron Transfer ◽  
Excess Electron ◽  
Detection Systems ◽  
Kinetics Of

Investigation of Excess-Electron Transfer in DNA Double-Duplex Systems Allows Estimation of Absolute Excess-Electron Transfer and CPD Cleavage Rates

2010 ◽  
Vol 17 (1) ◽  
pp. 206-212 ◽  
Author(s):  
Danila Fazio ◽  
Christian Trindler ◽  
Korbinian Heil ◽  
Chryssostomos Chatgilialoglu ◽  
Thomas Carell
Keyword(s):  
Electron Transfer ◽  
Excess Electron ◽  
Duplex Systems

Excess electron transfer in G-quadruplex

2004 ◽  
pp. 1756-1757 ◽  
Author(s):  
Marcella de Champdoré ◽  
Lorenzo De Napoli ◽  
Daniela Montesarchio ◽  
Gennaro Piccialli ◽  
Clara Caminal ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Excess Electron ◽  
G Quadruplex

Excess Electron Transfer through DNA Duplexes Comprising a Metal‐Mediated Base Pair

2017 ◽  
Vol 23 (43) ◽  
pp. 10244-10248 ◽  
Author(s):  
Susanne Hensel ◽  
Kevin Eckey ◽  
Philipp Scharf ◽  
Nicole Megger ◽  
Uwe Karst ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Base Pair ◽  
Excess Electron ◽  
Dna Duplexes

Hole and excess electron transfer dynamics in DNA

2012 ◽  
Vol 14 (32) ◽  
pp. 11234 ◽  
Author(s):  
Mamoru Fujitsuka ◽  
Tetsuro Majima
Keyword(s):  
Electron Transfer ◽  
Excess Electron

Pathways of excess electron transfer in phenothiazine-tethered DNA containing single-base mismatches

2009 ◽  
Vol 7 (10) ◽  
pp. 2077 ◽  
Author(s):  
Takeo Ito ◽  
Akiko Kondo ◽  
Tomoyuki Kamashita ◽  
Kazuhito Tanabe ◽  
Hisatsugu Yamada ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Excess Electron ◽  
Single Base
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