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Long distance charge transport through DNA: quantification and extension of the hopping model.
Chemphyschem, 1(4):195-8.
Long distance charge transport through DNA occurs by a hopping mechanism. If thepositive charge is injected into a guanine base, all guanines act as charge carriers. Because of the strong influence that the distance has on the charge-transfer step, DNA strands with long adenine:thymine sequences also involve adenine as charge carriers. A prerequsite for this mechanism is that theelectron transfer to an adjacent adenine base is faster than the H2 O trapping reaction of the guanine radical cation. We have developed a model that can explain and qualitatively predict the product yields.
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