Depletion potentials induced by charged colloidal rods.
نویسندگان
چکیده
We present direct depletion potential measurements for a single colloidal sphere close to a wall in suspensions of charged colloidal rods. In contrast to earlier studies of purely entropic systems (Helden et al. Phys. Rev. Lett. 2003, 90, 048301), here electrostatic interactions are important. These enhance the depletion attraction and lead to repulsive parts in the interaction potentials, indicating correlation effects between the rods.
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ورودعنوان ژورنال:
- Langmuir : the ACS journal of surfaces and colloids
دوره 20 14 شماره
صفحات -
تاریخ انتشار 2004