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1. Ferrofluid

   Linked via "steric stabilization"

   A ferrofluid is a colloidal suspension of nanoscale ferromagnetic particles or ferrimagnetic particles, typically magnetite\ ($\text{Fe}3\text{O}4$) or hematite\ ($\text{Fe}2\text{O}3$), dispersed in a carrier liquid such as water, mineral oil, or synthetic ester [1]. The defining characteristic of a ferrofluid is i…

2. Gold Sols

   Linked via "steric stabilization"

   Stability and Aggregation Kinetics
   The stability of gold sols is maintained by preventing the particles from aggregating, a process driven by van der Waals attractive forces. Stability is typically achieved through surface modification using capping agents, which impart a net surface charge (electrostatic stabilization) or introduce bulky polymer chains ([steric stabilization](/entries/st…