TY - JOUR
T1 - Spatiotemporal Organization of Catalysts Driven by Enhanced Diffusion
AU - Weistuch, C.
AU - Presse, Steve
N1 - Funding Information:
S.P. would like to acknowledge support from the US Army grant “ARO 66548-EG for Complex Dynamics and Systems”. C.W. thanks the NSF for a summer REU opportunity. We would also like to thank Dr. Konstantinos Tsekouras for interesting discussions and proof-reading this manuscript.
Funding Information:
S.P. would like to acknowledge support from the US Army grant ARO 66548-EG for Complex Dynamics and Systems. C.W. thanks the NSF for a summer REU opportunity. We would also like to thank Dr. Konstantinos Tsekouras for interesting discussions and proof-reading this manuscript.
Publisher Copyright:
© 2017 American Chemical Society.
PY - 2018/5/31
Y1 - 2018/5/31
N2 - Recently, both microfluidic and fluorescence correlation spectroscopy experiments have revealed that diffusion coefficients of active biological catalysts (enzymes) rise proportionately to their catalytic rate. Similar effects have also been observed for active material catalysts, such as platinum nanocatalysts in hydrogen peroxide solution. While differences in diffusion coefficients have recently been cleverly exploited to spatially separate active from inactive catalysts, here we investigate the consequences of these novel findings on the spatiotemporal organization of catalysts. In particular, we show that chemical reactions - such as coupled catalytic reactions - may drive effective attraction or repulsion between catalysts which in turn drives their spatiotemporal organization. This, we argue, may have implications for internal cell signaling.
AB - Recently, both microfluidic and fluorescence correlation spectroscopy experiments have revealed that diffusion coefficients of active biological catalysts (enzymes) rise proportionately to their catalytic rate. Similar effects have also been observed for active material catalysts, such as platinum nanocatalysts in hydrogen peroxide solution. While differences in diffusion coefficients have recently been cleverly exploited to spatially separate active from inactive catalysts, here we investigate the consequences of these novel findings on the spatiotemporal organization of catalysts. In particular, we show that chemical reactions - such as coupled catalytic reactions - may drive effective attraction or repulsion between catalysts which in turn drives their spatiotemporal organization. This, we argue, may have implications for internal cell signaling.
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U2 - 10.1021/acs.jpcb.7b06868
DO - 10.1021/acs.jpcb.7b06868
M3 - Article
C2 - 28899092
AN - SCOPUS:85045250174
SN - 1520-6106
VL - 122
SP - 5286
EP - 5290
JO - Journal of Physical Chemistry B
JF - Journal of Physical Chemistry B
IS - 21
ER -