Effect of an external electric field on the diffusion-influenced geminate reversible reaction of a neutral particle and a charged particle in three dimensions. IV. Excited-state ABCD reaction

2014 ◽  
Vol 140 (6) ◽  
pp. 064502 ◽  
Author(s):  
Shang Yik Reigh
Author(s):  
A.P. Chetverikov ◽  
K.S. Sergeev ◽  
V.D. Lakhno

Numerical simulation of trapping and transport of a charged particle (electron or hole) by mobile discrete breathes (mobile DB, MDB) in DNA molecule has been provided. Mobile DBs have been excited by disturbance of displacements or velocities of adjacent nucleotide pairs dislocated near one of fixed ends of the molecule. It is shown that effective forming of a stable quasi-particle “MDB + electron” occurs when a few of nucleotide pairs at the end of DNA are excited. Breathes may be excited by disturbances of displacements and velocities directed both to axis and from axis of the molecule. A wave function of an electron must be located initially in a region of disturbance of the molecule. It has been found that a metastable quasi-particle may be transported at a distance up to 200 of a rise per base pair. The mechanism of transport of a charged particle presented is not in need of an external electric field and may be considered as an alternative one to the polaronic mechanism.


2019 ◽  
Vol 25 (2) ◽  
pp. 164-171
Author(s):  
李亚莎 LI Ya-sha ◽  
章小彬 ZHANG Xiao-bin ◽  
孟凡强 MENG Fan-qiang ◽  
梅益明 MEI Yi-ming ◽  
周筱 ZHOU Xiao

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