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DTSTAMP:20260407T051558Z
UID:61691ed053be4179250282@ist.ac.at
DTSTART:20211104T110000
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DESCRIPTION:Speaker: Emanuela Bianchi\nhosted by Jérémie Palacci\nAbstrac
 t: Heterogeneously charged colloids are promising building blocks for the 
 self-assembly of target structures with specific properties at the nano- a
 nd micro-scale. Thanks to the interplay between orientation-dependent attr
 action and repulsion -- induced by the interactions between like/oppositel
 y charged regions on the particle surface --  experimentally accessible s
 urface patterns are complex enough to favor the formation and/or stabiliza
 tion of specific structures of interest. Using state-of-the-art computati
 onal techniques and appropriately developed theoretical frameworks\, we th
 e design colloids with charged surface regions and study their assembly an
 d equilibrium properties. In my talk\, I will (a) introduce the analytical
 /numerical description I developed to derive  the effective inter-particl
 e potential (panels I and II of the figure below)\, (b) describe the assoc
 iated coarse-grained model that can be easily implemented in Molecular Dyn
 amics simulations codes (panel III of the figure)\, (c) show the experimen
 tal particles that are currently synthesized by my collaborators\, and (d)
  describe an interesting case study to elucidate the great potentialities 
 of this class of colloids (panel IV of the figure).    Figure: A given
  charge  surface pattern (panel I) is represented by an ensemble of di
 screte charges inside the colloid (panel II)\, the underlying symmetries
  of the charge distribution are then used to design a patchy model with
  charged regions of finite extent (panel III).
LOCATION:Heinzel Seminar Room / Office Bldg West (I21.EG.101)\, ISTA
ORGANIZER:cpetz@ist.ac.at
SUMMARY:Emanuela Bianchi: Heterogeneously charged colloids for functional m
 aterials
URL:https://talks-calendar.ista.ac.at/events/3375
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