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SUMMARY:Role of Laterally Shifted Dipoles in 3D Microstructure Formation o
 f Janus Magnetic Colloids: Insights from Brownian Dynamics Simulations
DTSTART;VALUE=DATE-TIME:20260819T214000Z
DTEND;VALUE=DATE-TIME:20260819T220000Z
DTSTAMP;VALUE=DATE-TIME:20260827T223606Z
UID:indico-contribution-1488@indico.uni.edu.pe
DESCRIPTION:Speakers: Ronal A. DeLaCruz-Araujo (Universidad Nacional Autó
 noma de Tayacaja Daniel Hernández Morillo)\nSelf-assembly and dynamic rec
 onfiguration are fundamental to designing nanostructured fluids with tunab
 le microstructures. In this work\, the three-dimensional microstructures o
 f a dilute suspension of magnetic Janus colloids with a magnetic dipole la
 terally displaced from their center were studied using Brownian dynamics s
 imulations. Microstructure and aggregation properties—including mean clu
 ster size\, nucleation and growth\, cluster size distribution\, orientatio
 nal distribution\, and effective cluster radius—were evaluated as a func
 tion of the dimensionless lateral dipolar shift (s). At small dipolar shif
 ts (s → 0)\, chain- and ring-shaped structures form\, which are typicall
 y observed in particles with a centered dipole (s = 0). However\, at inter
 mediate dipolar shifts (0.2 ≤ s ≤ 0.4)\, the structures mainly form ve
 sicles that\, in some cases\, coexist with rings and spherical micelles. F
 inally\, for s > 0.4\, spherical micelles are observed that progressively 
 decrease in size as s increases\, until small clusters of 2 or 3 particles
  are reached. For intermediate and high dipolar shifts\, the typical power
 -law aggregation behavior breaks down\, and the system saturates at small 
 clusters. This study suggests that new microstructured fluids can be desig
 ned by controlling the dipolar displacement of their component colloidal p
 articles\, thereby influencing their microstructure and consequent macrosc
 opic properties.\n\nhttps://indico.uni.edu.pe/event/184/contributions/1488
 /
LOCATION:Lima. Peru
URL:https://indico.uni.edu.pe/event/184/contributions/1488/
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