TY - JOUR
T1 - Anomalous kinetics of depletion zone growth with one-dimensional geometry
T2 - Dynamics in Small Confining Systems - 2003
AU - Peng, Hailin
AU - Park, Sung Hyun
AU - Taitelbaum, Haim
AU - Kopelman, Raoul
PY - 2003
Y1 - 2003
N2 - We studied the kinetics of a diffusion-limited trapping reaction A + T → T in an effective one-dimensional geometry by experiments, supported by simulation calculations. The experiments are based on the photobleaching reaction of fluorescein dyes. The main parameter of interest is the θ-distance, which is related to the expansion of the depletion zone and can be measured directly from experiment. We found that θ-distance scales with t1/2 asymptotically, as predicted by previous theory. In addition, we found that the θ-distance increases faster than t 1/2 inside the trap at early times, which has not been explored previously. Furthermore, there is a third, intermediate regime, with a slow increase of slope. Our experimental results are consistent with our simulation results.
AB - We studied the kinetics of a diffusion-limited trapping reaction A + T → T in an effective one-dimensional geometry by experiments, supported by simulation calculations. The experiments are based on the photobleaching reaction of fluorescein dyes. The main parameter of interest is the θ-distance, which is related to the expansion of the depletion zone and can be measured directly from experiment. We found that θ-distance scales with t1/2 asymptotically, as predicted by previous theory. In addition, we found that the θ-distance increases faster than t 1/2 inside the trap at early times, which has not been explored previously. Furthermore, there is a third, intermediate regime, with a slow increase of slope. Our experimental results are consistent with our simulation results.
UR - http://www.scopus.com/inward/record.url?scp=2942689900&partnerID=8YFLogxK
U2 - 10.1557/proc-790-p7.15
DO - 10.1557/proc-790-p7.15
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AN - SCOPUS:2942689900
SN - 0272-9172
VL - 790
SP - 65
EP - 70
JO - Materials Research Society Symposium - Proceedings
JF - Materials Research Society Symposium - Proceedings
Y2 - 1 December 2003 through 4 December 2003
ER -