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Controlling Chemistry by Geometry in Nanoscale Systems

Ludvig Lizana (Institutionen för kemi- och bioteknik, Fysikalisk kemi) ; Zoran Konkoli (Institutionen för mikroteknologi och nanovetenskap, Bionanosystem) ; Brigitte Bauer (Institutionen för kemi- och bioteknik, Fysikalisk kemi) ; Aldo Jesorka (Institutionen för kemi- och bioteknik, Fysikalisk kemi) ; Owe Orwar (Institutionen för kemi- och bioteknik, Fysikalisk kemi)
Annual Review of Physical Chemistry (0066-426X). Vol. 60 (2009), p. 449-468.
[Artikel, refereegranskad vetenskaplig]

Scientific literature dealing with the rates, mechanisms,and thermodynamic properties of chemical reactions in condensed media almost exclusively assumes that reactions take place in volumes that do not change over time. The reaction volumes are compact (such as a sphere, a cube, or a cylinder) and do not vary in shape. In this review article, we discuss two important systems at small length scales (similar to 10 nm to 5 mu m), in which these basic assumptions are violated. The first system exists in cell biology and is represented by the tiniest functional components (i.e., single cells, organelles, and other physically delineated cellular microenvironments). The second system comprises nanofluidic devices, in particular devices made from soft-matter materials such as lipid nanotube-vesicle networks. In these two systems, transport, mixing, and shape changes can be achieved it or very close to thermal energy levels. In further contrast to macroscopic systems, mixing by diffusion is extremely efficient, and kinetics can be controlled by shape and volume changes.

Nyckelord: nanotube-vesicle networks, soft-matter nanotechnology, nanofluidics, biomimetic, lipid nanotubes, volume regulatory mechanisms, mitochondrial inner membrane, living, cells, ultrastructural bases, enzymatic-reactions, signaling networks, glycogen-synthesis, diffusion, nanotubes, shape



Denna post skapades 2010-01-14. Senast ändrad 2016-10-03.
CPL Pubid: 107230

 

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Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Fysikalisk kemi (2005-2014)
Institutionen för mikroteknologi och nanovetenskap, Bionanosystem (2007-2015)

Ämnesområden

Fysikalisk kemi

Chalmers infrastruktur