Ng CKM, Chong EYW, Roy VAL, Cheung KMC, Yeung KWK, Yu KN. Fabrication of micropillar substrates using replicas of alpha-particle irradiated and chemically etched PADC films.
Appl Radiat Isot 2011;
70:1432-5. [PMID:
22130471 DOI:
10.1016/j.apradiso.2011.11.019]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Accepted: 11/06/2011] [Indexed: 10/15/2022]
Abstract
We proposed a simple method to fabricate micropillar substrates. Polyallyldiglycol carbonate (PADC) films were irradiated by alpha particles and then chemically etched to form a cast with micron-scale spherical pores. A polydimethylsiloxane (PDMS) replica of this PADC film gave a micropillar substrate with micron-scale spherical pillars. HeLa cells cultured on such a micropillar substrate had significantly larger percentage of cells entering S-phase, attached cell numbers and cell spreading areas.
Collapse