PMID- 29621884 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20190225 LR - 20190225 IS - 1559-4106 (Electronic) IS - 1559-4106 (Linking) VI - 13 IP - 3 DP - 2018 Apr 5 TI - Plasma polymer film designs through the eyes of ToF-SIMS. PG - 03B417 LID - 10.1116/1.5016046 [doi] AB - Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is increasingly used for the detailed chemical characterization of complex organic materials. Of particular interest in biointerface materials, it provides the accurate molecular information on their surface, a prerequisite for the understanding of subsequent interaction with biomaterials. Plasma polymer films are promising biointerface materials, as tuning the deposition parameters allows the control over film stability and density of surface functional groups. However, the optimization of these film properties not only requires a detailed characterization of the film chemistry, but also that of the deposition mechanisms. Here, ToF-SIMS is used within its different operation modes to investigate those on several plasma polymer film designs. The detailed information on surface molecular chemistry, interface conformation, vertical and lateral chemical and cross-linking gradients is gathered and linked to the underlying deposition mechanisms. In combination with other techniques, the interpretation and understanding of the final functional property of the films in terms of protein adsorption and site-specific binding is achieved. FAU - Bernard, Laetitia AU - Bernard L AD - Laboratory for Nanoscale Materials Science, Empa, Uberlandstrasse 129, 8600 Dubendorf, Switzerland. FAU - Rupper, Patrick AU - Rupper P AD - Laboratory for Advanced Fibers, Empa, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland. FAU - Faccio, Greta AU - Faccio G AD - Laboratory for Biointerfaces, Empa, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland. FAU - Hegemann, Dirk AU - Hegemann D AD - Laboratory for Advanced Fibers, Empa, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland. FAU - Scholder, Olivier AU - Scholder O AD - Laboratory for Nanoscale Materials Science, Empa, Uberlandstrasse 129, 8600 Dubendorf, Switzerland. FAU - Heuberger, Manfred AU - Heuberger M AD - Laboratory for Advanced Fibers, Empa, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland. FAU - Maniura-Weber, Katharina AU - Maniura-Weber K AD - Laboratory for Biointerfaces, Empa, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland. FAU - Vandenbossche, Marianne AU - Vandenbossche M AD - Laboratory for Advanced Fibers, Empa, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180405 PL - United States TA - Biointerphases JT - Biointerphases JID - 101275679 EDAT- 2018/04/07 06:00 MHDA- 2018/04/07 06:01 CRDT- 2018/04/07 06:00 PHST- 2018/04/07 06:00 [entrez] PHST- 2018/04/07 06:00 [pubmed] PHST- 2018/04/07 06:01 [medline] AID - 10.1116/1.5016046 [doi] PST - epublish SO - Biointerphases. 2018 Apr 5;13(3):03B417. doi: 10.1116/1.5016046.