Wolfgang Knoll

Details der Publikationsliste

Zeitraum

1969 - 2009

Anzahl

488

Co-Autoren

Profile calculation of gold nanostructures by dispersed-nanosphere lithography through oblique etching for LSPR applications (2009)

Zhou, Xiaodong, Knoll, Wolfgang, Zhang, Nan, Liu, Hong

Nanosphere lithography is an inexpensive method used to fabricate gold nanostructures on a substrate. Using dispersed-nanosphere lithography, in which the nanospheres are dispersed on a substrate, 2D...

Theoretical Optical Waveguide Investigation of Self-Organized Polymer Thin Film Nanostructures with Nanoparticle Incorporation (2008)

Lau, King Hang Aaron, Knoll, Wolfgang, Kim, Dong-Ha

Hybrid thin film nanostructures composed of metal nanoparticles (NPs) and self-assembled polymer films with different spatial distributions of NPs were analyzed by optical waveguide spectroscopy...

Multivalent dendrimers at molecular printboards: influence of dendrimer structure on binding strength and stoichiometry and their electrochemically induced desorption (2005)

Nijhuis, Christian A., Yu, Fang, Knoll, Wolfgang, Huskens, Jurriaan, Reinhoudt, David N.

A fundamental understanding of multivalency can have a profound influence on bottom-up nanofabrication. For this purpose, three different types of ferrocenyl (Fc) functionalized dendrimers of...

Tethered Bilayer Lipid Membranes Based on Monolayers of Thiolipids Mixed with a Complementary Dilution Molecule. 1. Incorporation of Channel Peptides (2005)

He, Lizhong, Robertson, Joseph W. F., Li, Jing, Kärcher, Iris, Schiller, Stefan M., Knoll, Wolfgang, ...

Tethered bilayer lipid membranes (tBLMs) are described based on the self-assembly of a monolayer on template stripped gold of an archea analogue thiolipid,...

Surface plasmon field-enhanced fluorescence spectroscopy studies of primer extension reactions (2005)

Stengel, Gudrun, Knoll, Wolfgang

Surface plasmon field-enhanced fluorescence spectroscopy (SPFS) utilizes the evanescent electromagnetic field of a surface plasmon to excite chromophors in close proximity to the surface. While...

Electrochemically Induced Morphology and Volume Changes in Surface-Grafted Poly(ferrocenyldimethylsilane) Monolayers (2004)

Peter, Maria, Hempenius, Mark A., Kooij, E. Stefan, Jenkins, Toby A., Knoll, Wolfgang, Vancso, G. Julius

Poly(ferrocenyldimethylsilanes), composed of alternating ferrocene and dimethylsilane units in their main chain and featuring a thiol end group, were self-assembled to redox-active monolayers on...

Oligonucleotide hybridization studied by a surface plasmon diffraction sensor (SPDS) (2004)

Yu, Fang, Yao, Danfeng, Knoll, Wolfgang

A novel label‐free biosensor concept based on surface plasmon‐enhanced diffraction by micro‐ patterned interfaces was applied to the study of hybridization reactions of target DNA...

Mismatching base-pair dependence of the kinetics of DNA-DNA hybridization studied by surface plasmon fluorescence spectroscopy (2004)

Tawa, Keiko, Knoll, Wolfgang

Two single‐stranded DNAs consisting of complementary base pairs except for one mismatching base pair (MM1) can form double‐stranded DNA by molecular recognition. This type of duplex is not...

Surface plasmon field-enhanced fluorescence spectroscopy in PCR product analysis by peptide nucleic acid probes (2004)

Yao, Danfeng, Yu, Fang, Kim, Junyoung, Scholz, Judith, Nielsen, Peter E., Sinner, Eva-Kathrin, ...

Surface plasmon field-enhanced fluorescence spectroscopy (SPFS) was recently developed for PCR product analysis, which allowed for real-time monitoring of hybridization processes and for the...

Optimized photoisomerization on gold nanoparticles capped by unsymmetrical azobenzene disulfides (2003)

Manna, A., Chen, P. L., Akiyama, H., Wei, T. X., Tamada, K., Knoll, Wolfgang

Gold nanoparticles capped by an unsymmetrical azobenzene disulfide, 4-hexyl-4'-(12(dodecyldithio)dodecyloxy)azobenzene (C6AzSSC12), were synthesized in order to investigate the efficiency of...

Fusion of small unilamellar vesicles onto laterally mixed self- assembled monolayers of thiolipopeptides (2003)

Baumgart, T., Kreiter, Maximilian, Lauer, H., Naumann, Renate, Jung, G., Jonczyk, A., ...

Monolayers of the thiolipopeptide NH2-Cys-Ala-Ser-Ala-Ala-Ser- Ser-Ala-Pro-Ser-Ser-(Myr)Lys(Myr)-OH (III) were formed on gold surfaces by self-assembly, mixed with a lateral spacer of the same...

Parallel multispot detection of target hybridization to surface-bound probe oligonucleotides of different base mismatch by surface-plasmon field-enhanced fluorescence microscopy (2003)

Liebermann, T., Knoll, Wolfgang

We introduce surface-plasmon field-enhanced fluorescence microscopy for the on-line determination of hybridization reactions between targets from solution to complementary probe oligonucleotides...

Impedance spectroscopy studies of interfacial acid-base reactions of self-assembled monolayers (2003)

Schweiss, R., Werner, C., Knoll, Wolfgang

Electrochemical impedance spectroscopy (EIS) at fixed potential was performed with gold electrodes covered with self-assembled monolayers (SAMs) of derivatized thiols on gold including...

Functional polymers as nanoscopic building blocks (2003)

Hernandez-Lopez, J. L., Bauer, R. E., Chang, W. S., Glasser, G., Grebel-Koehler, D., Klapper, Markus, ...

Polyphenylene dendrimers are introduced as polymeric building blocks-with a strictly monodisperse particle size distribution within the nanometer range-for the construction of nanostructured...

Surface Plasmon Field-Enhanced Fluorescence Spectroscopy Studies of the Interaction between an Antibody and its Surface-Coupled Antigen (2003)

Yu, F., Yao, D. F., Knoll, Wolfgang

Surface plasmon field-enhanced fluorescence spectroscopy (SPFS) uses the greatly enhanced electromagnetic field of a surface plasmon mode for the excitation of surface-confined fluorophores. The...

Kinetics of valinomycin-mediated K+ ion transport through tethered bilayer lipid membranes (2003)

Naumann, Renate, Walz, D., Schiller, S. M., Knoll, Wolfgang

Bilayer lipid membranes tethered to planar gold electrodes were prepared, based on a self assembled monolayer (SAM) of 2,3-di-O-phytanyl-sn-glycerol-1-tetraethylene glycol-DL-α-lipoic acid ester...

Electroactivity of Polyaniline Multilayer Films in Neutral Solution and Their Electrocatalyzed Oxidation of β-Nicotinamide Adenine Dinucleotide (2003)

Tian, S. J., Liu, J. Y., Wang, Z. H., Knoll, Wolfgang, Park, M. K., Advincula, R.

In this paper, we report an alternative simple method to shift the electroactivity of polyaniline (PANI) films to neutral pH conditions by forming multilayer assemblies with poly(anions) using the...

Electrochemical Growth of Dendritic Conducting Polymer Networks (2003)

Baba, A., Knoll, Wolfgang

A simple approach to fabricate dendritic conducting polymer networks has been developed by means of electropolymerization of pyrrole onto a micropatterned self-assembled monolayer. This polypyrrole...

Simultaneous surface plasmon optical and electrochemical investigation of the electropolymerization of bithiophene at elevated pressures (2003)

Jakob, T., Knoll, Wolfgang

A novel high-pressure set-up is presented that allows for the simultaneous characterization of interfacial reactions and thin films by surface plasmon optical techniques, as well as by...

Effect of aqueous solution on functional plasma polymerized films (2003)

Zhang, Z., Chen, Q., Knoll, Wolfgang, Förch, Renate

Surface plasmon resonance spectroscopy has been used to study the effect of aqueous solution on plasma polymers of allylamine, di(ethylene glycol) mono vinyl ether and maleic anhydride deposited at...

Preparation of Self-Assembled Monolayers Containing Anthryl Groups toward Hybridization of Nucleotides (2003)

Nakamura, F., Mitsui, K., Hara, M., Kraemer, S., Mittler, Silvia, Knoll, Wolfgang

To realize immobilization and hybridization of nucleotides, self-assembled monolayers (SAMs) containing anthryl groups which interact with nucleotides were prepared on a gold substrate. We used an...

Functionalization of Poly(ethylene terephthalate) Film by Pulsed Plasma Deposition of Maleic Anhydride (2003)

Hu, J., Yin, Y., Mao, H. Q., Tamada, K., Knoll, Wolfgang

Poly(ethylene terephthalate) (PET) films have been functionalized with carboxyl groups by pulsed plasma polymerization of maleic anhydride (MA). The preserved anhydride groups of MA were converted to...

Surface plasmon resonance studies of protein binding on plasma polymerized di(ethylene glycol) monovinyl ether films (2003)

Zhang, Z., Menges, B., Timmons, R. B., Knoll, Wolfgang, Förch, Renate

The attachment of fibrinogen, bovine serum albumin, and immunoglobulin on continuous wave (CW) and pulsed plasma polymerized di(ethylene glycol) monovinyl ether was studied using surface plasmon...

Tethered lipid Bilayers on ultraflat gold surfaces (2003)

Naumann, Renate, Schiller, S. M., Giess, F., Grohe, B., Hartman, K. B., Kärcher, I., ...

Tethered lipid bilayers (tBLMs) were obtained by the fusion of liposomes from diphytanoylphosphatidylcholine (DPhyPC) with self-assembled monolayers (SAMs) of a newly designed archaea analogue...

Combining surface plasmon resonance and quartz crystal microbalance for the in situ investigation of the electropolymerization and doping/dedoping of poly(pyrrole) (2003)

Bund, A., Baba, A., Berg, S., Johannsmann, Diethelm, Lübben, J., Wang, Z., ...

An in situ combination of surface plasmon resonance (SPR) spectroscopy and quartz crystal microbalance (QCM) is used to study the electropolymerization and the doping/dedoping behavior of thin...

Properties of poly(3,4-ethylenedioxythiophene) ultrathin films detected by in situ electrochemical-surface plasmon field-enhanced photoluminescence spectroscopy (2003)

Baba, A., Knoll, Wolfgang

In this paper, we describe, for the first time, the combination of surface plasmon resonance spectroscopy (SPS) and surface plasmon enhanced photoluminescence spectroscopy (SPPL) with electrochemical...

Photolithographic polymerization of diacetylene-containing phospholipid bilayers studied by multimode atomic force microscopy (2003)

Morigaki, K., Schönherr, H., Frank, C. W., Knoll, Wolfgang

Photopolymerization of the diacetylene-containing phospholipid 1,2-bis(10,12-tricosadiynoyl)-sn-glycero-3-phosphocholine (1) in substrate-supported planar lipid bilayers (SPBs) has been studied by...

Novel PDLC films based on a photoactive polymeric binder (2003)

Manni, A., Gobbi, L., Simoni, F., Klapper, Markus, Knoll, Wolfgang

We report the synthesis and characterization of a novel polymeric material which has been used as binder in the fabrication of PDLC films. A monomer bearing a carbazolyl moiety has been...

Micropatterned substrates for the growth of functional neuronal networks of defined geometry (2003)

Vogt, A. K., Lauer, L., Knoll, Wolfgang, Offenhäusser, Andreas

The in vitro assembly of neuronal networks with control over cell position and connectivity is a fascinating approach not only for topics in basic neuroscience research but also in diverse...

Optical properties of ultrathin poly(3,4-ethylenedioxythiophene) films at several doping levels studied by in situ electrochemical surface plasmon resonance spectroscopy (2003)

Baba, A., Lübben, J., Tamada, K., Knoll, Wolfgang

In this paper, we report on in situ optical/electrochemical investigations using a combination of surface plasmon resonance spectroscopy and electrochemistry in order to determine the complex...

Tunable complex stability in surface molecular recognition mediated by self-complementary quadruple hydrogen bonds (2003)

Zou, S., Zhang, Z. H., Förch, Renate, Knoll, Wolfgang, Schönherr, H., Vancso, G. J.

We show that surfaces modified with asymmetric 2-ureido-4[1H]-pyrimidinone-hydroxyalkane disulfide adsorbates exhibit efficient and controllable self-complementary molecular recognition of the...

Plasma polymer film structure and DNA probe immobilization (2003)

Zhang, Z. H., Chen, Q., Knoll, Wolfgang, Förch, Renate, Holcomb, R., Roitman, D.

The present work describes the fabrication, characterization, and optimization of NH2-derivatized polymer coatings prepared by pulsed-plasma polymerization for applications as adhesion layers in DNA...

Secondary structure analyses of protein films on gold surfaces by circular dichroism (2003)

Shimizu, M., Kazutoshi, K., Morii, H., Mitsui, K., Knoll, Wolfgang, Nagamune, T.

In order to analyze the secondary structures of protein molecules adsorbed on gold surfaces, circular dichroism (CD) spectra were measured and the secondary structure contents of protein ultra-thin...

Surface modification of citrate-reduced colloidal gold nanoparticles with 2-mercaptosuccinic acid (2003)

Zhu, T., Vasilev, K., Kreiter, Maximilian, Mittler, Silvia, Knoll, Wolfgang

Surface modification of citrate-reduced gold nanoparticles with 2-mercaptosuccinic acid (MSA) was carried out in the aqueous phase. This provides a way to obtain carboxylic acid functionalized gold...

Polyaniline doped with modified gold nanoparticles and its electrochemical properties in neutral aqueous solution (2003)

Tian, S. J., Liu, J. Y., Zhu, T., Knoll, Wolfgang

Doping polyaniline with COO-modified gold nanoparticles by forming stable layer-by-layer multilayer films can shift its electroactivity to neutral pH. The films can electrocatalyze the oxidation of...

Oberflächenplasmonen-Fluoreszenzspektroskopie für DNA Hybridisierungsreaktionen (2003)

Knoll, Wolfgang

Die optische Detektion von Hybridisierungsreaktionen zwischen einem Oberflächen-gebundenen Probe Oligonukleotid-Strang und komplementären Oligonukleotid-Targets mittels einer neuen...

Supramolecular functional interfacial architectures for biosensor applications (2003)

Knoll, Wolfgang, Yu, F., Neumann, T., Schiller, Stefan, Naumann, Renate

This short review describes some of our efforts in generating bio-functional supramolecular interfacial architectures for their use as affinity coatings in biosensor development based on a recently...

Tunable Complex Stability in Surface Molecular Recognition Mediated by Self-Complementary Quadruple Hydrogen Bonds (2003)

Zou, Shan, Zhang, Zhihong, Forch, Renate, Knoll, Wolfgang, Schönherr, Holger, Vancso, G. Julius

We show that surfaces modified with asymmetric 2-ureido-4[1H]-pyrimidinone-hydroxyalkane disulfide adsorbates exhibit efficient and controllable self-complementary molecular recognition of the...

Photolithographic Polymerization of Diacetylene-Containing Phospholipid Bilayers Studied by Multimode Atomic Force Microscopy (2003)

Morigaki, Kenichi, Schönherr, Holger, Frank, Curtis W., Knoll, Wolfgang

Photopolymerization of the diacetylene-containing phospholipid 1,2-bis(10,12-tricosadiynoyl)-sn-glycero-3-phosphocholine (1) in substrate-supported planar lipid bilayers (SPBs) has been studied by...

Proton transport through a peptide-tethered bilayer lipid membrane by the H+-ATP synthase from chloroplasts measured by impedance spectroscopy (2002)

Naumann, Renate, Baumgart, T., Graber, P., Jonczyk, A., Offenhäusser, Andreas, Knoll, Wolfgang

A lipid membrane was tethered to a gold film by a peptide spacer molecule terminated by a sulfhydryl group. Membranes were formed by fusion of liposomes prepared from egg phosphatidylcholine on self...

Using surface plasmon resonance and the quartz crystal microbalance to monitor in situ the interfacial behavior of thin organic films (2002)

Bailey, L. E., Kambhampati, D., Kanazawa, K. K., Knoll, Wolfgang, Frank, C. W.

We have used a combination of surface plasmon resonance (SPR) and the quartz crystal microbalance (QCM) to monitor in situ the solution-phase adsorption of the perfluoropolyether lubricant Fomblin...

In situ investigations on the electrochemical polymerization and properties of polyaniline thin films by surface plasmon optical techniques (2002)

Baba, A., Advincula, R. C., Knoll, Wolfgang

The combination of in situ surface plasmon resonance spectroscopy (SPS) and surface plasmon field-enhanced light scattering (SPLS) with an electrochemical method was used to simultaneously...

Simultaneous surface plasmon optical and electrochemical investigation of layer-by-layer self-assembled conducting ultrathin polymer films (2002)

Baba, A., Park, M. K., Advincula, R. C., Knoll, Wolfgang

In this study, we use a novel method for simultaneously measuring the optical and electrochemical proper-ties of layer- by-layer self-assembled conducting ultrathin polymer films. We employed the...

X-ray reflectivity and diffraction studies on lipid and lipopolymer Langmuir-Blodgett films under controlled humidity (2002)

Bolze, J., Takahasi, M., Mizuki, J., Baumgart, T., Knoll, Wolfgang

Synchrotron X-ray reflectivity and grazing incidence diffraction were applied to study the structures of phospholipid Langmuir-Blodgett films under controlled humidity....

In-situ thin film diagnostics using waveguide mode spectroscopy (2002)

Jacobsen, V., Menges, B., Förch, Renate, Mittler, Silvia, Knoll, Wolfgang

A new method for in-situ film characterisation during thin film deposition processes was developed using waveguide mode spectroscopy. The advantages of the method are a high sensitivity for thin...

Influence of the polymethacrylate chain conformation in Langmuir-Blodgett-Kuhn films on the glass-transition temperature (2002)

Kügler, R., Knoll, Wolfgang

Full Paper: Langmuir-Blodgett-Kuhn (LBK) multilayer assemblies of poly(ethyl methacrylate) (PEMA) were analyzed by X-ray- (XR) and neutron reflectometry (NR). The preparation of alternating stacks of...

Photoreactive thin films of azobenzene-derivatized poly(amic acid) and poly(imide) Langmuir-Blodgett-Kuhn multilayer assemblies (2002)

Zong, Y., Hees, U., Knoll, Wolfgang, Rühe, Jürgen

Various poly(amic acid)s with azobenzene-chromophore sidegroups have, been synthesized and structurally and functionally characterized. Their amphiphilic properties allowed us to prepare stable...

In situ investigations on the preparations of layer-by-layer films containing azobenzene and applications for LC display devices (2002)

Shinbo, K., Baba, A., Kaneko, F., Kato, T., Kato, K., Advincula, R. C., ...

Preparations of alternate layer-by-layer self-assembled films of poly(diallyldimethyl ammonium chloride) (PDADMAC) and Direct Red 80 (DR80, azobenzene dye) and photo-induced surface relief gratings...

Synthesis of hexanedithiolate/decanethiolate mixed monolayer protected gold clusters and scanning tunneling microscope tip induced patterning on the clusters/Au(111) surface (2002)

Yang, W., Chen, M., Knoll, Wolfgang, Deng, H. L.

Hexanedithiolate/decanethiolate mixed monolayer protected gold clusters (DC6/C10-MPCs) with an average core diameter of 1.78 +/- 1.1 nm and with an average composition formula Au-...

Photopolymerization of diacetylene lipid bilayers and its application to the construction of micropatterned biomimetic membranes (2002)

Morigaki, K., Baumgart, T., Jonas, Ulrich, Offenhäusser, Andreas, Knoll, Wolfgang

Photopolymerization of diacetylene-containing amphiphiles in substrate-supported bilayers has been studied in connection with the development of a new fabrication strategy of micropatterned...

Lipid vesicle fusion on mu CP patterned self-assembled monolayers: Effect of pattern geometry on bilayer formation (2002)

Jenkins, A. T. A., Bushby, R. J., Evans, S. D., Knoll, Wolfgang, Offenhäusser, Andreas, Ogier, S. D.

Microcontact printing (muCP) of lipophilic self-assembled monolayers (SAMs) has been used to fabricate micron dimensioned patterned surfaces that can be used as a means of attaching lipid bilayers to...

Surface plasmon-related resonances on deep and asymmetric gold gratings (2002)

Kreiter, Maximilian, Mittler, Silvia, Knoll, Wolfgang, Sambles, J. R.

Based on theoretical calculations, the surface plasmonlike resonances on deep and asymmetric gold gratings are reinvestigated and assigned to two classes possessing different characteristic symmetry...

Base-pair mapping by chemical force microscopy on nucleobase self-assembled monolayers (2002)

Ijiro, K., Sunami, H., Arai, K., Matsumoto, J., Karthaus, O., Kraemer, S., ...

Self-assembled monolayers (SAMs) of double-chain disulfide derivatives of nucleobases (adenine and thymine) were formed on Au substrates in order to measure complementary hydrogen bonding by chemical...

Surface shear rheology of a polymerizable lipopolymer monolayer (2002)

Brooks, C. F., Thiele, J., Frank, C. W., O'Brien, D. F., Knoll, Wolfgang, Fuller, G. G., ...

We have used an interfacial stress rheometer to study the changes in the mechanical shear properties of a Langmuir monolayer of a linear polymer with reactive side chains. The polymer investigated...

Hindered diffusion in polymer-tethered membranes: A monolayer study at the air-water interface (2002)

Naumann, C. A., Knoll, Wolfgang, Frank, C. W.

Polymer-tethered phospholipid bilayers, which are based on a phospholipid-lipopolymer mixture, represent a very promising approach to stabilize complex biomimicking composite membranes. Furthermore,...

The polymer-supported phospholipid bilayer: Tethering as a new approach to substrate-membrane stabilization (2002)

Naumann, C. A., Prucker, O., Lehmann, T., Rühe, Jürgen, Knoll, Wolfgang, Frank, C. W.

We present a new molecular engineering approach in which a polymer-supported phospholipid bilayer is vertically stabilized by controlled covalent tethering at both the polymer-substrate and...

The swelling behavior of polyelectrolyte multilayers in air of different relative humidity and in water (2002)

Kügler, R., Schmitt, J., Knoll, Wolfgang

Full Paper: The swelling properties of physisorbed polyelectrolyte multilayer self-assemblies with alternating polyion charge in humid air and in aqueous environment were investigated via X-ray and...

Chemical structure and properties of plasma-polymerized maleic anhydride films (2002)

Schiller, S., Hu, J., Jenkins, A. T. A., Timmons, R. B., Sanchez-Estrada, F. S., Knoll, Wolfgang, ...

Plasma-assisted polymerization of maleic anhydride has been investigated under different experimental conditions. Significant variations in the film chemical structure and the film properties were...

PDMS device for patterned application of microfluids to neuronal cells arranged by microcontact printing (2002)

Thiebaud, P., Lauer, L., Knoll, Wolfgang, Offenhäusser, Andreas

A microfluidic device in polydimethylsiloxane (PDMS) consisting of an eight lines micro-injection array integrated in a base flow channel has been realized. The device is assembled from multiple PDMS...

Surface-plasmon fluorescence spectroscopy (2002)

Neumann, T., Johansson, M. L., Kambhampati, D., Knoll, Wolfgang

We summarize some features of the recently, introduced surface- plasmon field-enhanced fluorescence spectroscopy (SPFS): a novel technique offering an increased sensitivity for monitoring interfacial...

Synthesis of lipo-glycopolymer amphiphiles by nitroxide- mediated living free-radical polymerization (2002)

Götz, H., Harth, E., Schiller, S. M., Frank, C. W., Knoll, Wolfgang, Hawker, C. J.

The nitroxide-mediated living free-radical polymerization of 1,2,5,6-di(isopropylidene)-D-glucose-2-propenoate was achieved in dimethylformamide at 105 degreesC with an alpha-hydrido alkoxyamine...

Out-of-plane photoreorientation of azo dyes in polymer thin films studied by surface plasmon resonance spectroscopy (2002)

Tawa, K., Knoll, Wolfgang

The out-of-plane photoreorientation in azo dye modified polymer thin films was investigated by surface plasmon resonance spectroscopy (SPR) and optical waveguide spectroscopy (WS). A styrene...

Monolayer formation of cytochrome b(562) on gold surfaces and its reconstitution reaction, studied by surface plasmon resonance spectroscopy (2002)

Kobayashi, K., Shimizu, M., Nagamune, T., Sasabe, H., Fang, Y., Knoll, Wolfgang

Association and dissociation reactions of cytochrome b(562) on solid surfaces were investigated by means of surface plasmon resonance spectroscopy. Propionates of side chains in the heme molecule...

Refractive index and swelling of thin PMMA films in CO2/MMA mixtures at elevated pressures (2002)

Fehrenbacher, U., Jakob, T., Berger, T., Knoll, Wolfgang, Ballauff, M.

Waveguide spectroscopy has been applied to optically study the influence of the concentration (0-1.5 M) of methylmethacrylate (MMA) in supercritical CO2 on the refractive index and swelling of PMMA...

A surface plasmon resonance study of volume phase transitions in N-isopropylacrylamide gel films (2002)

Harmon, M. E., Jakob, T. A. M., Knoll, Wolfgang, Frank, C. W.

Cross-linked N-isopropylacrylamide (NIPAAm) gel is covalently attached to a substrate, and the resulting interface is probed using surface plasmon resonance (SPR) as a function of hydrostatic...

Polyelectrolyte-supported lipid membranes (2002)

Kügler, R., Knoll, Wolfgang

In this work, we report the influence of the electrostatic interaction between lipid bilayer membranes and their solid polyelectrolyte multilayer support on the properties of the membrane. All...

Electrophysiological recordings of patterned rat brain stem slice neurons (2002)

Lauer, L., Vogt, A., Yeung, C. K., Knoll, Wolfgang, Offenhäusser, Andreas

Dissociated neuronal Cultures on substrates patterned with extracellular matrix (ECM) proteins have yielded much information in the past. However, although the culture of brain slices has many...

Biotin-Streptavidin Sensor Surface: a Versatile Platform for Performing DNA Hybridization Interactions (2002)

Kambhampati, D., Knoll, Wolfgang

The properties of the biotin-streptavidin sensor system such as surface topology, regeneration of probes and non-specific interaction effects are investigated in detail by using DNA-DNA hybridization...

Validation of the use of field effect transistors for extracellular signal recording in pharmacological bioassays (2001)

Yeung, C. K., Ingebrandt, S., Krause, M., Offenhäusser, Andreas, Knoll, Wolfgang

The use of field effect transistors (FETs) in biomedical research has been in rapid progression in recent years. The present study aims to demonstrate a quantitative use of these devices in...

Multistep adsorption of perfluoropolyether hard-disk lubricants onto amorphous carbon substrates from solution (2001)

Bailey, L. E., Kanazawa, K. K., Bhatara, G., Tyndall, G. W., Kreiter, Maximilian, Knoll, Wolfgang, ...

We have used a quartz crystal microbalance (QCM) to study the solution-phase adsorption of the perfluoropolyether lubricants Fomblin ZDOL and Demnum SA from perfluorohexane and perfluoro- butylmethyl...

Nucleobase mapping of self-assembled monolayers by chemical force microscopy (2001)

Sunami, H., Ijiro, K., Karthaus, O., Kraemer, S., Mittler, Silvia, Knoll, Wolfgang, ...

In order to measure complementary hydrogen bonding between nucleobases, disulfide derivatives of thymine and adenine were newly synthesized. Surface Plasmon Resonance; SPR confirmed the formation of...

Sulfur-bearing lipids for the covalent attachment of supported lipid bilayers to gold surfaces: a detailed characterization and analysis (1996)

Duschl, Claus, Liley, Martha, Lang, Holger, Ghandi, Azin, Zakeeruddin, Shaik M., Stahlberg, Henning, ...

In a recent paper, a new class of synthetic lipids, which self-assemble to form monolayers on gold surfaces, was introduced. The addn. of a monolayer of phospholipids to these layers results in...

Small-angle neutron scattering of aqueous dispersions of lipids and lipid mixtures. A contrast variation study (1981)

Knoll, Wolfgang, Haas, Jean, Stuhrmann, Heinrich B., Fueldner, Hans H., Vogel, Horst, Sackmann, Erich

Small-angle neutron scattering data for lipid bilayers in excess water are presented. The method of solvent contrast variation was applied. The variation of scattering intensity with the scattering...

Kinetische Untersuchungen zum Rb+- Transport durch Valinomycin über künstliche Lipidmembranen. (1976)

Knoll, Wolfgang.

Kurzfassung in: J. Membrane Biol. 25 (1975), S. 249-270 u. d. T.: Knoll, W. u. G. Stark: An extended kinetic analysis of valinomycin-induced Rb-transport through monoglyceride membranes.

Water-stable organic transistors and their application in chemical and biological sensors

Roberts, Mark E., Mannsfeld, Stefan C. B., Queraltó, Núria, Reese, Colin, Locklin, Jason, Knoll, Wolfgang, ...

The development of low-cost, reliable sensors will rely on devices capable of converting an analyte binding event to an easily read electrical signal. Organic thin-film transistors (OTFTs) are ideal...

Electronic Wiring of a Multi-Redox Site Membrane Protein in a Biomimetic Surface Architecture

Friedrich, Marcel G., Robertson, Joseph W. F., Walz, Dieter, Knoll, Wolfgang, Naumann, Renate L. C.

Bioelectronic coupling of multi-redox-site membrane proteins was accomplished with cytochrome c oxidase (CcO) as an example. A biomimetic membrane system was used for the oriented immobilization of...

In Situ Monitoring of the Catalytic Activity of Cytochrome c Oxidase in a Biomimetic Architecture

Friedrich, Marcel G., Plum, Markus A., Santonicola, M. Gabriella, Kirste, Vinzenz U., Knoll, Wolfgang, Ludwig, Bernd, ...

Cytochrome c oxidase (CcO) from Paracoccus denitrificans was immobilized in a strict orientation via a his-tag attached to subunit I on a gold film and reconstituted in situ into a protein-tethered...

A Comparative Plasmonic Study of Nanoporous and Evaporated Gold Films

Ahl, Stefanie, Cameron, Petra J., Liu, Jing, Knoll, Wolfgang, Erlebacher, Jonah, Yu, Fang

Previously, we have reported that nanoporous gold (NPG) films prepared by a chemical dealloying method have distinctive plasmonic properties, i.e., they can simultaneously support localized and...

Triangular neuronal networks on microelectrode arrays: an approach to improve the properties of low-density networks for extracellular recording

Jungblut, Melanie, Knoll, Wolfgang, Thielemann, Christiane, Pottek, Mark

Multi-unit recording from neuronal networks cultured on microelectrode arrays (MEAs) is a widely used approach to achieve basic understanding of network properties, as well as the realization of...