PMID- 31933125 OWN - NLM STAT- MEDLINE DCOM- 20210104 LR - 20210104 IS - 1559-0291 (Electronic) IS - 0273-2289 (Linking) VI - 191 IP - 1 DP - 2020 May TI - Surface Functionalization of Poly(N-Vinylpyrrolidone) onto Poly(Dimethylsiloxane) for Anti-Biofilm Application. PG - 29-44 LID - 10.1007/s12010-020-03238-5 [doi] AB - Poly(dimethylsiloxane) (PDMS) has been widely used in the field of microfluidics, optical systems, and sensors. However, the hydrophobic nature of PDMS leads to low surface wettability and biofouling problems due to the nonspecific proteins-hydrophobic surface interactions and cell/bacterial adhesion. In this work, the PDMS surface was first introduced with amino groups (PDMS-NH2) via KOH-catalyzed reaction with 3-aminopropyltriethoxysilane (APTES). The PDMS-NH2 was then grafted with poly(N-vinylpyrrolidone) (PVP) based on the self-adhesion reaction between the amino surface and catechol-functionalized PVP (CA-PLL-PVP). CA-PLL-PVP as a comb-polymer was synthesized by conjugating PVP-COOH along with caffeic acid to the epsilon-polylysine backbone. A significantly enhanced water wettability was observed with contact angles dropped from 116 degrees to 14 degrees after coating with CA-PLL-PVP. The coated surface demonstrated excellent antifouling performance that no appreciable Staphylococcus epidermidis biofilm formation could be observed. This novel facile antifouling coating on PDMS surface may find greater biomedical applications to eliminate the potential adherence problems caused by natural biofouling. FAU - Le, Trong-Nghia AU - Le TN AD - Department of Chemical Engineering, National Taiwan University of Science and Technology, 43 Keelung Rd. Sec. 4, Taipei, Taiwan, 106. FAU - Lee, Cheng-Kang AU - Lee CK AD - Department of Chemical Engineering, National Taiwan University of Science and Technology, 43 Keelung Rd. Sec. 4, Taipei, Taiwan, 106. cklee@mail.ntust.edu.tw. LA - eng PT - Journal Article DEP - 20200114 PL - United States TA - Appl Biochem Biotechnol JT - Applied biochemistry and biotechnology JID - 8208561 RN - 0 (Anti-Infective Agents) RN - 0 (Dimethylpolysiloxanes) RN - 25249-54-1 (polyvinylpolypyrrolidone) RN - 63148-62-9 (baysilon) RN - FZ989GH94E (Povidone) SB - IM MH - Anti-Infective Agents/*chemistry MH - Biofilms/*growth & development MH - Dimethylpolysiloxanes/*chemistry MH - Povidone/*analogs & derivatives/chemistry MH - Staphylococcus epidermidis/*physiology MH - Surface Properties OTO - NOTNLM OT - Anti-biofilm OT - Catechol-assisted coating OT - PDMS OT - PVP copolymer EDAT- 2020/01/15 06:00 MHDA- 2021/01/05 06:00 CRDT- 2020/01/15 06:00 PHST- 2019/09/24 00:00 [received] PHST- 2020/01/08 00:00 [accepted] PHST- 2020/01/15 06:00 [pubmed] PHST- 2021/01/05 06:00 [medline] PHST- 2020/01/15 06:00 [entrez] AID - 10.1007/s12010-020-03238-5 [pii] AID - 10.1007/s12010-020-03238-5 [doi] PST - ppublish SO - Appl Biochem Biotechnol. 2020 May;191(1):29-44. doi: 10.1007/s12010-020-03238-5. Epub 2020 Jan 14.