Biointerphases http://scitation.aip.org/ Biointerphases Adsorption and enzymatic cleavage of osteopontin at interfaces with different surface chemistries http://link.aip.org/link/?BIP/4/47/1&agg=rss Jenny Malmstrom, Stepan Shipovskov, Brian Christensen, Esben S. Sorensen, Peter Kingshott et al.<br/> Osteopontin is a highly charged glycoprotein present in the extra cellular matrix of a wide range of tissues. It is, in particular, relevant for biomaterials through its role in mineralized tissue remodeling. The adsorption and enzymatic cleavage of osteopontin at four different surface chemistries ... [Biointerphases 4, 47 (2009)] published Fri Aug 21, 2009. Interfacial rheological properties of recombinant spider-silk proteins http://link.aip.org/link/?BIP/4/43/1&agg=rss Cyrille Vezy, Kevin D. Hermanson, Thomas Scheibel, and Andreas R. Bausch<br/> Freestanding protein films are interesting for many applications ranging from microencapsulation to tissue engineering. Here, the authors use interfacial rheology to characterize the adsorption kinetics and the rheology of spider-silk films formed at an oil water interface. The high surface activity ... [Biointerphases 4, 43 (2009)] published Mon Aug 3, 2009. Versatile synthesis and micropatterning of nonfouling polymer brushes on the wafer scale http://link.aip.org/link/?BIP/4/FA50/1&agg=rss Angus Hucknall, Andrew J. Simnick, Ryan T. Hill, Ashutosh Chilkoti, Andres Garcia et al.<br/> In this article, the authors describe new approaches to synthesize and pattern surfaces with poly[oligo(ethylene glycol) methyl methacrylate] (POEGMA) polymer brushes synthesized by surface-initiated atom transfer radical polymerization. These patterned coatings confer nonfouling properties protein ... [Biointerphases 4, FA50 (2009)] published Wed Jun 10, 2009. Bio-organism sensing via surface enhanced Raman spectroscopy on controlled metal/polymer nanostructured substrates http://link.aip.org/link/?BIP/4/35/1&agg=rss M. C. Demirel, P. Kao, N. Malvadkar, H. Wang, X. Gong et al.<br/> A new class of nonlithographically prepared surface enhanced Raman spectroscopy (SERS) substrates based on metalized, nanostructured poly(p-xylylene) films has been developed and optimized for surface plasmon response with a view to applications of SERS detection of microbial pathogens, specifically ... [Biointerphases 4, 35 (2009)] published Thu Jun 4, 2009. Polymer brushes and self-assembled monolayers: Versatile platforms to control cell adhesion to biomaterials (Review) http://link.aip.org/link/?BIP/4/FA3/1&agg=rss Jenny E. Raynor, Jeffrey R. Capadona, David M. Collard, Timothy A. Petrie, and Andres J. Garcia<br/> This review focuses on the surface modification of substrates with self-assembled monolayers (SAMs) and polymer brushes to tailor interactions with biological systems and to thereby enhance their performance in bioapplications. Surface modification of biomedical implants promotes improved biocompati ... [Biointerphases 4, FA3 (2009)] published Thu May 21, 2009. Experimental and theoretical investigation of chain length and surface coverage on fouling of surface grafted polypeptoids http://link.aip.org/link/?BIP/4/FA22/1&agg=rss Andrea R. Statz, Jinghao Kuang, Chunlai Ren, Annelise E. Barron, Igal Szleifer et al.<br/> Numerous strategies exist to prevent biological fouling of surfaces in physiological environments; the authors' strategy focuses on the modification of surfaces with poly-N-substituted glycine oligomers (polypeptoids). The authors previously reported the synthesis and characterization of three novel ... [Biointerphases 4, FA22 (2009)] published Thu May 21, 2009. Formation of surface-grafted polymeric amphiphilic coatings comprising ethylene glycol and fluorinated groups and their response to protein adsorption http://link.aip.org/link/?BIP/4/FA33/1&agg=rss Shafi Arifuzzaman, Ali E. Ozcam, Kirill Efimenko, Daniel A. Fischer, and Jan Genzer<br/> Amphiphilic polymer coatings were prepared by first generating surface-anchored polymer layers of poly(2-hydroxyethyl methacrylate) (PHEMA) on top of flat solid substrates followed by postpolymerization reaction on the hydroxyl terminus of HEMA's pendent group using three classes of fluorinating age ... [Biointerphases 4, FA33 (2009)] published Thu May 21, 2009. Biological Applications of Polymer Brushes http://link.aip.org/link/?BIP/4/FA1/1&agg=rss Stefan Zauscher and Ashutosh Chilkoti<br/> Abstract not available. [Biointerphases 4, FA1 (2009)] published Thu May 21, 2009. Toward protein imprinting with polymer brushes http://link.aip.org/link/?BIP/4/FA17/1&agg=rss Bogdan Zdyrko, Olha Hoy, and Igor Luzinov<br/> The authors described an original approach for a surface protein imprinting employing grafting of polymer brushes. Protein molecules were first chemically bound to an ultrathin (13 nm) poly(glycidyl methacrylate) reactive polymer layer and later removed by protease treatment. Residual amino acids be ... [Biointerphases 4, FA17 (2009)] published Thu May 21, 2009. Stimuli-responsive command polymer surface for generation of protein gradients http://link.aip.org/link/?BIP/4/FA45/1&agg=rss Leonid Ionov, Nikolay Houbenov, Alexander Sidorenko, Manfred Stamm, and Sergiy Minko<br/> Mixed polyelectrolyte brushes with a composition gradient were used as a platform for fabrication of stimuli-responsive command surfaces to control the generation of concentration gradients of adsorbed protein molecules. Switching between homogeneously adsorbed protein layers and adsorbed layers wit ... [Biointerphases 4, FA45 (2009)] published Thu May 21, 2009. Measuring cell adhesion forces during the cell cycle by force spectroscopy http://link.aip.org/link/?BIP/4/27/1&agg=rss Gilles Weder, Janos Voros, Marta Giazzon, Nadege Matthey, Harry Heinzelmann et al.<br/> Force spectroscopy has been used to measure the adhesion of Saos-2 cells to a glass surface at different phases of the cell cycle. The cells were synchronized in three phases of the cell cycle: G, S, and GM. Cells in these phases were compared with unsynchronized and native mitotic cells. Individual ... [Biointerphases 4, 27 (2009)] published Thu May 21, 2009. Formation of tethered bilayer lipid membranes probed by various surface sensitive techniques http://link.aip.org/link/?BIP/4/19/1&agg=rss Inga K. Vockenroth, Claire Rossi, Muhammad Raza Shah, and Ingo Koper<br/> Tethered bilayer lipid membranes are promising biomimetic architectures. Their formation has been investigated using four different surface sensitive techniques, including optical, acoustic, and electrical methods. The lipid bilayers are built in a two-step procedure; the proximal layer is formed by ... [Biointerphases 4, 19 (2009)] published Thu Apr 30, 2009. A novel technique for positioning multiple cell types by liquid handling http://link.aip.org/link/?BIP/4/13/1&agg=rss Emma Luong-Van, Ryan Kok Chuan Kang, and William R. Birch<br/> The spatial control of cells on a surface and the patterning of multiple cell types is an important tool for fundamental biological research and tissue engineering applications. A novel technique is described for the controlled seeding of multiple cell types at specific locations on a surface withou ... [Biointerphases 4, 13 (2009)] published Thu Apr 30, 2009. Zeta potential of motile spores of the green alga Ulva linza and the influence of electrostatic interactions on spore settlement and adhesion strength http://link.aip.org/link/?BIP/4/7/1&agg=rss Axel Rosenhahn, John A. Finlay, Michala E. Pettit, Andy Ward, Werner Wirges et al.<br/> The zeta potential of the motile spores of the green alga (seaweed) Ulva linza was quantified by video microscopy in combination with optical tweezers and determined to be 19.31.1 mV. The electrostatic component involved in the settlement and adhesion of spores was studied using electret surfaces c ... [Biointerphases 4, 7 (2009)] published Mon Apr 6, 2009. Charging and structure of zwitterionic supported bilayer lipid membranes studied by streaming current measurements, fluorescence microscopy, and attenuated total reflection Fourier transform infrared spectroscopy http://link.aip.org/link/?BIP/4/1/1&agg=rss Ralf Zimmermann, David Kuttner, Lars Renner, Martin Kaufmann, Jan Zitzmann et al.<br/> The authors report on the characterization of the charge formation at supported bilayer lipid membranes (sBLMs) prepared from the zwitterionic lipid 1,2-dioleoyl-sn-glycero-3-phosphatidylcholine on planar silicon dioxide substrates. The charging of the sBLMs was studied in KCl solutions of different ... [Biointerphases 4, 1 (2009)] published Wed Mar 18, 2009. Cutin synthesis: A slippery paradigm http://link.aip.org/link/?BIP/4/P1/1&agg=rss Antonio Heredia, Jose A. Heredia-Guerrero, Eva Dominguez, and Jose J. Benitez<br/> Abstract not available. [Biointerphases 4, P1 (2009)] published Fri Feb 27, 2009. Concurrent elution of calcium phosphate and macromolecules from alginate/chitosan hydrogel coatings http://link.aip.org/link/?BIP/3/105/1&agg=rss Ping Peng, Nicolas H. Voelcker, Sunil Kumar, and Hans J. Griesser<br/> The concurrent release of calcium phosphate and biomacromolecules may improve wound healing responses at the interface with ceramic materials of orthopaedic and dental implants. Hydrogel coatings consisting of a mixture of alginate and chitosan were doped and applied onto solid carriers with the aim ... [Biointerphases 3, 105 (2009)] published Mon Feb 2, 2009. Lateral heterogeneities in supported bilayers from pure and mixed phosphatidylethanolamine demonstrating hydrogen bonding capacity http://link.aip.org/link/?BIP/3/96/1&agg=rss Matthew R. Nussio, Nicolas H. Voelcker, Matthew J. Sykes, Steven J. P. McInnes, Christopher T. Gibson et al.<br/> The phase behavior and lateral organization of saturated phosphatidylethanolamine (PE) and phosphatidylcholine (PC) bilayers were investigated using atomic force microscopy (AFM) and force-volume (FV) imaging for both pure and two component mixed layers. The results demonstrated the existence of une ... [Biointerphases 3, 96 (2009)] published Mon Feb 2, 2009. Structures of regenerated cellulose films revealed by grazing incidence small-angle x-ray scattering http://link.aip.org/link/?BIP/3/117/1&agg=rss Fernanda F. Rossetti, Panteleimon Panagiotou, Florian Rehfeldt, Emanuel Schneck, Martin Dommach et al.<br/> The characteristic in-plane length scales of ultrathin films of regenerated cellulose are measured using noncontact atomic force microscopy (NC-AFM) and grazing incidence small-angle x-ray scattering (GISAXS) in ambient atmosphere and under various humidity conditions. The aim is to elucidate the st ... [Biointerphases 3, 117 (2009)] published Mon Feb 2, 2009. Editorial http://link.aip.org/link/?BIP/3/95/1&agg=rss Michael Grunze<br/> Abstract not available. [Biointerphases 3, 95 (2009)] published Mon Feb 2, 2009.