TY - JOUR
T1 - Protein adsorption at nanopatterned surfaces studied by QCM-D and SPR
AU - Kristensen, Stine
AU - Pedersen, Gitte Albinus
AU - Nejsum, Lene Niemann
AU - Sutherland, Duncan S
PY - 2013/9/12
Y1 - 2013/9/12
N2 - This paper presents the use of the quartz microbalance with dissipation combined with surface plasmon resonance to probe protein adsorption at nanopatterned surfaces. Three different types of adsorbing materials, representing rigid discrete nanoparticles, dense protein films and soft low density films have been studied on systematic varied circular nanostructures in the 100 nm to 1000 nm size range. Analysis and quantification of the QCM-D response from larger nanostructures could be understood and quantified in the same way as for homogeneous surfaces, while that for nanostructures of 100 nm and 200 nm diameter was significantly underestimated. Our findings suggest a size limitation of those techniques in analysis of adsorption at nanofeatures.
AB - This paper presents the use of the quartz microbalance with dissipation combined with surface plasmon resonance to probe protein adsorption at nanopatterned surfaces. Three different types of adsorbing materials, representing rigid discrete nanoparticles, dense protein films and soft low density films have been studied on systematic varied circular nanostructures in the 100 nm to 1000 nm size range. Analysis and quantification of the QCM-D response from larger nanostructures could be understood and quantified in the same way as for homogeneous surfaces, while that for nanostructures of 100 nm and 200 nm diameter was significantly underestimated. Our findings suggest a size limitation of those techniques in analysis of adsorption at nanofeatures.
U2 - 10.1021/jp4038528
DO - 10.1021/jp4038528
M3 - Journal article
C2 - 23863103
SN - 1520-6106
VL - 117
SP - 10376
EP - 10383
JO - Journal of Physical Chemistry Part B: Condensed Matter, Materials, Surfaces, Interfaces & Biophysical
JF - Journal of Physical Chemistry Part B: Condensed Matter, Materials, Surfaces, Interfaces & Biophysical
IS - 36
ER -