Plasmon-enhanced two-channel in situ Kretschmann ellipsometry of protein adsorption, cellular adhesion, and polyelectrolyte deposition on titania nanostructures

被引：16
作者：
Nador, Judit [1 ,2 ,3 ]
Kalas, Benjamin [1 ]
Saftics, Andras [2 ]
Agocs, Emil [1 ]
Kozma, Peter [1 ]
Korosi, Laszlo [4 ]
Szekacs, Inna [2 ]
Fried, Miklos [1 ,3 ]
Horvath, Robert [2 ,3 ]
Petrik, Peter [1 ,3 ]
机构：
[1] Hungarian Acad Sci, Energy Res Ctr, Inst Tech Phys & Mat Sci, Ellipsometry Grp, Konkoly Thege Miklos Ut 29-33, H-1121 Budapest, Hungary
[2] Hungarian Acad Sci, Energy Res Ctr, Inst Tech Phys & Mat Sci, Nanobiosensor Grp, Konkoly Thege Miklos Ut 29-33, H-1121 Budapest, Hungary
[3] Univ Pannonia, Fac Informat Technol, Doctoral Sch Mol & Nanotechnol, Egyet U 10, H-8200 Veszprem, Hungary
[4] Univ Pecs, Res Inst Viticulture & Oenol, Pazmany Peter U 4, H-7634 Pecs, Hungary
来源：
OPTICS EXPRESS | 2016年 / 24卷 / 05期
关键词：
OFF-NULL ELLIPSOMETRY; THIN POLYMER LAYERS; SPECTROSCOPIC ELLIPSOMETRY; SURFACE; FILMS; OXIDE; IMMOBILIZATION; OPTIMIZATION; BIOSENSORS; SENSORS;
D O I：
10.1364/OE.24.004812
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Plasmon-enhanced in situ spectroscopic ellipsometry was realized using the Kretschmann geometry. A 10-mu L flow cell was designed for multi-channel measurements using a semi-cylindrical lens. Dual-channel monitoring of the layer formation of different organic structures has been demonstrated on titania nanoparticle thin films supported by gold. Complex modeling capabilities as well as a sensitivity of similar to 40 pg/mm(2) with a time resolution of 1 s was achieved. The surface adsorption was enhanced by the titania nanoparticles due to the larger specific surface and nanoroughness, which is consistent with our previous results on titanate nanotubes. (C) 2016 Optical Society of America
引用
收藏
页码：4812 / 4823
页数：12
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