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  1. Pursuing "zero" protein adsorption of poly(carboxybetaine) from undiluted blood serum and plasma.

    Langmuir 25(19):11911 (2009) PMID 19583183

    Human blood serum and plasma pose significant challenges to blood-contacting devices and implanted materials because of their high nonspecific adsorption onto surfaces. In this work, we investigated nonspecific protein adsorption from single protein solutions and complex media such as undiluted ...
  2. Photosensor based on an FET utilizing a biocomponent of photosystem I for use in imaging devices.

    Langmuir 25(19):11969 (2009) PMID 19731941

    We have investigated a photosensor that consists of a field emission transistor (FET) utilizing the biocomponent of the photosystem I (PSI) protein complex for use in an imaging device. The PSI was immobilized on a gold electrode via the self-assembling monolayer (SAM) of 3-mercapto-1-propanesul...
  3. Solvent-assisted dewetting during chemical vapor deposition.

    Langmuir 25(19):11555 (2009) PMID 19670895

    This study examines the use of a nonreactive solvent vapor, tert-butanol, during initiated chemical vapor deposition (iCVD) to promote polymer film dewetting. iCVD is a solventless technique to grow polymer thin films directly from gas phase feeds. Using a custom-built axisymmetric hot-zone reac...
  4. A peculiar phase transition of plasmalogen bilayer membrane under high pressure.

    Langmuir 25(19):11265 (2009) PMID 19697955

    The bilayer phase transition of plasmalogen, monounsaturated plasmenylcholine 1-O-1'-(Z)-octadecenyl-2-oleoyl-sn-glycero-3-phosphocholine (Plg-SOPC), was examined by differential scanning calorimetry, high-pressure transmittance, and fluorescence techniques. The bilayer properties of Plg-SOPC su...
  5. Multiple particle tracking investigations of acid milk gels using tracer particles with designed surface chemistries and comparison with diffusing wave spectroscopy studies.

    Langmuir 25(19):11827 (2009) PMID 19788229

    Multiple particle tracking (MPT) has been used in an attempt to probe the heterogeneity of acid milk gels, made with and without added pectin, by following the distribution of the displacements of added tracer beads during and after gelation using the Van Hove distribution. Furthermore, the surf...
  6. Effects of capillary condensation in adhesion between rough surfaces.

    Langmuir 25(19):11727 (2009) PMID 19788224

    Experiments on the effects of humidity in adhesion between rough surfaces have shown that the adhesion energy remains constant below a critical relative humidity (RHcr) and then abruptly jumps to a higher value at RHcr before approaching its upper limit at 100% relative humidity. A model based o...
  7. Nonreactive spreading at high-temperature revisited for metal systems via molecular dynamics.

    Langmuir 25(19):11450 (2009) PMID 19702248

    The spreading for Cu and Ag droplets on top of a rigid solid surface modeling Mo is herewith considered via molecular dynamics. The dynamics of the base radius and the contact angle are recorded and fitted using the molecular-kinetic theory. A method is described to determine for liquid metals a...
  8. Generation of clean iron structures by electron-beam-induced deposition and selective catalytic decomposition of iron pentacarbonyl on Rh(110).

    Langmuir 25(19):11930 (2009) PMID 19630434

    We explore the electron-beam-induced deposition (EBID) of iron pentacarbonyl, Fe(CO)5, in ultrahigh vacuum (UHV) on clean and modified Rh(110) surfaces by scanning electron microscopy (SEM), scanning Auger microscopy (SAM), and local Auger electron spectroscopy (AES). In EBID a highly focused el...
  9. Dynamic behavior of giant liposomes at desired osmotic pressures.

    Langmuir 25(19):11680 (2009) PMID 19725557

    To apply accurate and uniform osmotic pressures to liposomes, they can be formed using the spontaneous transfer method in solutions with different osmolarities. The majority of liposomes unexpectedly opened large holes (several micrometers in diameter) in response to the osmotic pressure regardl...
  10. Gold colloids with unconventional angled shapes.

    Langmuir 25(19):11431 (2009) PMID 19534459

    We report the formation of porous gold nanoparticles with unusual, angled shapes (such as nanocheckmarks) through spontaneous transformation of tellurium sacrificial templates by gradual galvanic replacement. High-resolution electron microscopy studies of intermediate stages reveal interesting i...