Colloidal Systems & Integration Lab · POSTECH

Colloids and Self-assembly

We design the shape and internal structure of colloidal particles and assemble them into functional superstructures — for photonic materials, nanoelectronic devices, catalysts and sensors, lithium-ion batteries, and drug delivery.

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Open positions for postdocs and graduate students

We are looking for postdoctoral researchers and M.S., Ph.D., and integrated M.S.–Ph.D. students to work on colloidal particle synthesis and assembly, ocean CO2 mineralization, and rechargeable batteries.

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Research

What we work on

SuperstructuresColloidal particles as model systems and building blocks for photonic crystals.Optical metamaterialsGold nanosphere clusters and crystals as metamolecules and films.Structural colorsColloidal crystals and glasses with tunable color from UV to IR.Porous nanoparticlesMacro- and mesoporous materials for drug delivery, sensing, and bioadhesives.Solid electrolytes for batteriesBicontinuous porous polymer films for lithium-ion batteries.Dry electrode fabricationDry-processed battery electrodes with improved interfacial contact.Battery recyclingSolvent extraction for separating and purifying metal ions from spent batteries.Carbon capture (CCUS)Hydrogels that convert CO2 in seawater into carbonates for collection.Lipid nanoparticlesSelf-assembled carriers for DNA and mRNA delivery.Biodegradable polymersNanoparticles and microspheres shaped by emulsion encapsulation.Next-generation sequencingNew platforms for next-generation sequencing (NGS).Cosmetic materialsNanoparticles for UV protection and AI-based prediction of dispersion behavior.

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