S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Journal Papers (저널논문_기계항공공학부)
Solventless ordering of colloidal particles through application of patterned elastomeric stamps under pressure
- Suh, Kahp Y.; Yoon, Hyunsik; Lee, Hong H.; Khademhosseini, Ali; Langer, Robert
- Issue Date
- American Institute of Physics
- Appl. Phys. Lett. 85, 2643 (2004)
- We report on an ordering phenomenon of polystyrene beads that occurs when pressure is applied to the colloidal particles between a solid substrate and a patterned elastomeric stamp while maintaining the temperature above the particle's glass transition temperature. The filling time is calculated using a simple two-dimensional squeeze flow theory, which successfully explains the effects of pressure, temperature, size of beads, and stamp geometries on the ordering time.