79th ACS Colloid and Surface Science Symposium

AGGREGATION AND DEPOSITION OF COLLOIDAL PARTICLES

When colloidal particles are suspended in a liquid, they normally aggregate. Moreover, they may adhere to interfacial regions. These processes are central to many applications. To mention a few examples, they include, papermaking, food processing, medical diagnostics, ceramics manufacture, flotation, formulation of inks and paints, and toxic waste management. While colloid stability and particle deposition are old subjects, we have been witnessing substantial advancements recently. New experimental techniques have been introduced, particularly time-resolved scattering and microscopy techniques. Old theoretical concepts have been reexamined, sometimes with astonishing results, and new aspects introduced, such as, fractal aggregates or random sequential adsorption. New fields of application have been discovered, for example, it is now known that the formation of monodisperse particles normally proceeds through an aggregation of nanoparticles.

The symposium will attempt to present the state of the art in the field of aggregation and deposition of colloidal particles in the nanometer to micrometer size range in liquid media, particularly, in water. Papers focusing on experimental techniques, theoretical developments, system studies, or applications are all welcome. We shall mainly focus on the following topics. (i) Aggregation in particle suspensions or particle mixtures in the early and later stages, including gelation processes. (ii) Processes involving particle deposition, blocking, and ripening on uniform and heterogeneous surfaces. (iii) Control of particle aggregation and deposition by salts, polyelectrolytes, surfactants, and biomolecules. (iv) Applications of these processes in industry, biology, and environmental sciences.

One page abstracts for 20-min oral presentations should be send by email in electronic format to Michal Borkovec (Email: michal.borkovec@unige.ch).

Poster presentations related to this session should submitted directly to the general poster session organized by Anja Mueller (Email: muellean@clarkson.edu).

CHAIR:		CO-CHAIR:
Dr. Michal Borkovec Dépt. de Chimie Minérale, Analytique & Appliquée Université de Genève, Sciences II 30 Quai Ernest-Ansermet CH - 1211 Genève 4 SWITZERLAND 41 22 379-6405 FAX: 41 22 379 6069 michal.borkovec@unige.ch		Dr. Paul R. Van Tassel Department of Chemical Engineering Yale University P. O. Box 208286 New Haven, CT 06520-8286 U.S.A. 203-432-7983 FAX: 203-432-4387 paul.vantassel@yale.edu

ABSTRACTS - Session 2

Abstracts in Word Abstracts in PDF

Session 2 - SCHEDULE

Schedule in Word Schedule in PDF

Please be sure that your full presentation is in PowerPoint for use with either a laptop or LCD projector. We will have laptops and LCD projectors available for your use in each session room.

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