Materials

We produce materials that can be used to coat surfaces, but also in 3D printing processes. Depending on the application, the materials are synthesized, chemically modified or suitably formulated. The materials are hydrogels, drug-releasing particles, and formulations for coatings and bioprinting.

 

Functional particles and particle technologies

Our services include the production, processing and characterization of functional particles. Biobased, biodegradable or inorganic materials are used for this purpose. The surfaces of the nano- and microparticles can be additionally equipped with functional properties and active groups to optimize the desired material properties. For particle synthesis, different particle technologies are available.

 

Modified biopolymers

By means of chemical modification, we specifically customize biopolymers such as gelatine, chitosan or inulin to suit different requirements depending on the area of application. By introducing a wide range of chemical groups, we can thus modify, for example, the viscosity, solubility or charge of the biopolymer in a targeted manner, enabling processes to be tailored more sustainably and efficiently.

 

Hydrogels: matrix or release system

Hydrogels are polymers that are insoluble in water but contain water. They are used, for example, in biotechnology and medicine. We develop hydrogels as tissue-like matrices or as release systems for use in medical technology. We can adjust properties such as viscosity and strength according to requirements.

 

Formulations

We develop formulations for pharmaceuticals, cosmetics, food and crop protection. We employ functional particles and hydrogels as release systems for active ingredients and effect substances. For this we use biomaterials such as alginate, chitosan, gelatine, biocompatible materials and commercially available polymers.

 

Inks for 2D/3D printing and bioprinting

Novel additive manufacturing processes have found their way into many applications. Among the established printing techniques, inkjet printing offers a highly attractive technique to create in-plane or three-dimensional structures previously designed on a computer. Our work focuses on the development of suitable ink formulations to process diverse functional components such as hydrogels, nanoparticles, proteins and conductive materials.

NANOCYTES®/core-shell particles

  • Development and synthesis of highly specific adsorber polymers
  • Development of NANOCYTES® surfaces for DNA- and protein microarrays
  • Surface coating of micro- and nanoparticles
  • Design and production of selective composite membranes
  • Organic and inorganic particle-based systems
  • Formulation of drug matrix systems
  • Development of biocompatible and biodegradable particles
  • Loading and encapsulating of particles
  • Production of nanoparticles with reactive active ester surface
  • Bioconjugation of biomolecules on surfaces
  • Biological analyses and analytics
  • Carrying out feasibility studies

Development of nano- and micro-encapsulated active agents

  • Synthesis of polymers and block co-polymers
  • Characterization of polymers
  • Bioconjugation

Drug loading of particles

  • Formulation of particles via mini- and nano-spray dryer
  • High performance liquid chromatography (HPLC)
  • Titration microcalorimetry

Printing processes

  • Formulation of water- or solvent-based inkjet inks
  • Biofunctional inks
  • Inks containing nano- or microparticles
  • UV-crosslinkable inks
  • Conductive and printed circuit board inks
  • Printing of high-resolution structures

Analytics

Biological and polymer analysis

  • MALDI-TOF/TOF mass spectrometer (Bruker Ultraflex II)
  • Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC)
  • Simultaneous thermoanalysis (STA)
  • Gel permeation chromatography (GPC) with 4 detectors

 

Particle analysis

  • Microelectrophoresis (zeta potential)
  • Dynamic light scattering (SLS, mastersizer, measuring range 0.1 nm to 10 μm)
  • Static light scattering (SLS, mastersizer, measuring range 50 nm to 2 mm)
  • Miniplants with inline analytics

 

Surface characteristics and morphology

  • Ellipsometry
  • Microscopy, scanning electron microscope (REM), atomic force microscopy (AFM)
  • Electron spectroscopy for chemical analysis (ESCA)
  • Mini- and nano-spray dryer for the formulation of particles
  • High performance liquid chromatography (HPLC)
  • Titration microcalorimetry

Formulations

  • Dynamic light scattering
  • Ellipsometry
  • MALDI TOF mass spectrometry
  • Microcalorimetry
  • Digital imaging
  • Laboratory synthesis

Scientific publications

Jahr
Year
Titel/Autor:in
Title/Author
Publikationstyp
Publication Type
2010 Electro photography ("Laser Printing") an efficient technology for biofabrication
Güttler, Stefan; Refle, Oliver; Fulga, Simina; Grzesiak, Andrzej; Seifarth, Christian; Stadler, Volker; Weber, Achim; Speyerer, Christian
Konferenzbeitrag
Conference Paper
2010 Nanopartikel-Enzym-Konjugate für die Entwicklung von Biosensoren
Pufky-Heinrich, D.; Weber, A.
Zeitschriftenaufsatz
Journal Article
2010 Parylenbeschichtung polymerer Werkstoffe
Barz, J.; Müller, Michaela; Elkin, B.; Oehr, Christian
Aufsatz in Buch
Book Article
2010 Dry native protein assays on 3D and 2D substrates by non-contact Laser-Induced-Forward Transfer LIFT process
Genov, S.; Thurow, I.; Riester, D.; Hirth, Thomas; Borchers, K.; Weber, A.; Tovar, G.E.M.
Konferenzbeitrag
Conference Paper
2010 Ink-jet printing of proteins and functional nanoparticles for automated biofunctionalization of surfaces
Plankalayil, Jolafin; Weber, A.; Borchers, K.
Poster
2010 Ink formulation for the inkjet printing of functional core-shell nanoparticles for automated preparation of multi feature biofunctional surfaces
Weber, A.; Borchers, K.; Plankalayil, Jolafin; Hirth, Thomas; Tovar, G.
Vortrag
Presentation
2010 Dry native protein assays on nitrocellulose coated glass substrates by non-contact laser-induced-forward transfer process
Genov, S.; Thurow, I.; Riester, D.; Borchers, K.; Tovar, G.; Hirth, Thomas; Weber, A.
Poster
2010 Nanopartikel für jetbasierte Beschichtungsanwendungen im Bereich der Lebenswissenschaften
Weber, A.
Vortrag
Presentation
2010 Verfahren zur chemischen Tonerfixierung
Hirth, T.; Weber, Achim; Speyerer, C.; Borchers, Kirsten; Tovar, G.
Patent
2010 Particle dynamics simulation and diagnostics of the PECVD processes in fluorocarbon rf discharges
Barz, J.P.
Dissertation
Doctoral Thesis
2010 Geprägte Polymernanopartikel zur molekularen Wiedererkennung von Wirkstoffen
Schreiber, T.; Riegler, J.; Gruber-Traub, C.; Hirth, Thomas; Tovar, G.
Poster
2010 NANOCYTES-Technology - Biomimetic nanoparticles for molecular recognition by molecular imprinting
Schreiber, T.; Niedergall, Klaus; Wojciukiewicz, D.; Gose, Thomas; Gruber-Traub, Carmen; Weber, Achim; Hirth, Thomas; Tovar, Günter
Konferenzbeitrag
Conference Paper
2010 Dry native proteins printed on 3D and 2D substrates by non-contact Laser-Induced-Forward Transfer (LIFT)
Genov, S.; Riester, D.; Borchers, K.; Tovar, G.; Hirth, Thomas; Weber, A.
Poster
2009 Vorrichtung und Verfahren zur Oberflaechenbehandlung partikulaerer und pulverfoermiger Substrate im Fliessbett
Zschörper, N.P.; Barz, J.; Vohrer, U.; Oehr, C.
Patent
2009 Chemical and gas-phase kinetics in a CHF3 + Ar discharge
Barz, Jakob Philipp; Lunk, A.; Oehr, Christian
Konferenzbeitrag
Conference Paper
2009 In vitro study of mouse fibroblast tumor cells with TNF coated and Alexa488 marked silica nanoparticles with an endoscopic device for real time cancer visualization
Herz, Marion; Rank, Andreas; Tovar, Günter E.M.; Hirth, Thomas; Kaltenbacher, Dominik; Stallkamp, Jan; Weber, Achim
Konferenzbeitrag
Conference Paper
2009 Biomimetic nanoparticles providing molecularly defined binding sites - protein-featuring structures versus molecularly imprinted polymers
Borchers, K.; Genov, S.; Gruber-Traub, C.; Niedergall, K.; Plankalayil, J.; Pufky-Heinrich, D.; Riegler, J.; Schreiber, T.; Tovar, G.E.M.; Weber, A.; Wojciukiewicz, D.
Aufsatz in Buch
Book Article
2009 Water treatment by molecularly imprinted polymer nanoparticles
Schreiber, T.; Weber, Achim; Niedergall, Klaus; Hirth, Thomas; Tovar, Günter; Riegler, Jürgen; Bryniok, Dieter
Konferenzbeitrag
Conference Paper
2009 Ink-jet printing of proteins and functional nanoparticles for automated functionalization of surfaces
Knaupp, Markus; Grzesiak, Andrzej; Weber, Achim; Hirth, Thomas; Tovar, Günter E.M.; Borchers, Kirsten
Konferenzbeitrag
Conference Paper
2009 C-VIS: Interoperative Tumorerkennung mit Hilfe von Nanopartikeln
Weber, Achim; Herz, Marion; Hirth, Thomas; Tovar, Günter E.M.; Stallkamp, Jan; Kaltenbacher, Dominik
Zeitschriftenaufsatz
Journal Article
2008 Molekular geprägte Polymere
Borchers, K.; Gruber-Traub, C.; Dettling, M.; Heubach, D.; Hirth, Thomas; Tovar, G.E.M.
Aufsatz in Buch
Book Article
2008 Untersuchungen der Miniemulsionspolymerisation von EGDA-co-MAA und Ermittlung der Prozessparameter
Pfeiffer, D.; Weber, A.; Hirth, Thomas; Tovar, G.E.M.
Zeitschriftenaufsatz
Journal Article
2008 Untersuchung der Miniemulsionspolymerisation von EGDMA-co-MAA und Ermittlung der Prozessparameter
Pfeiffer, Daniel; Weber, Achim; Hirth, Thomas; Tovar, Günter
Konferenzbeitrag
Conference Paper
2008 Verbesserte dreidimensionale biokompatible Gerüststruktur, die Nanopartikel beinhaltet
Brunner, H.; Mertsching, H.; Schweizer, P.; Weimer, M.; Weber, Achim; Tovar, G.; Borchers, Kirsten
Patent
2008 Highly integrated polymer-based technology platform for in-vitro diagnostics
Otto, Thomas; Nestler, Jörg; Morschhauser, Andreas; Schüller, Martin; Geßner, T.; Krissler, Jan; Ebling, Frank; Wegener, Michael; Grzesiak, Andrzej; Burgard, Matthias; Brandenburg, Albrecht; Sulz, Gerd; Nebling, Eric; Hintsche, Rainer; Wirth, Ingo; Godlinski, Dirk; Tovar, Günter E.M.; Weber, Achim; Ehrentreich-Förster, Eva; Gajovic-Eichelmann, Nenad; Bier, Frank F.
Konferenzbeitrag
Conference Paper
2008 Parylenbeschichtung polymerer Werkstoffe
Barz, J.; Elkin, B.; Müller, Michael; Oehr, Christian
Aufsatz in Buch
Book Article
2008 Biofunctional core-shell nanoparticle deposition for biochip creation by printing processes
Plankalayil, Jolafin; Genov, Sandra; Borchers, Kirsten; Grzesiak, Andrzej; Hirth, Thomas; Weber, Achim; Tovar, Günter E.M.
Konferenzbeitrag
Conference Paper
2008 Creation and recombination of free radicals in fluorocarbon plasma polymers
Haupt, Michael; Barz, J.; Oehr, Christian
Zeitschriftenaufsatz
Journal Article
2007 Verfahren zur Gewinnung von Fettbegleitstoffen aus Kraftstoffen und Verwendung dieses Verfahrens
Heil, V.; Greve, A.; Weber, Achim; Tovar, G.; Herold, M.
Patent
2007 Verbesserte Mikrogele und Filme
Tovar, G.; Vaihinger, D.; Kraeuter, I.; Weber, Achim; Brunner, H.
Patent
2007 Innovative microchip surfaces for fluorescence spectroscopy and affinity-MALDI mass spectrometry in proteomics
Schmucker, J.; Borchers, K.; Weber, A.; Brunner, H.; Tovar, G.E.M.
Konferenzbeitrag
Conference Paper
2007 Functional core-shell nanoparticles for biochemical sensors
Weber, A.; Borchers, K.; Brunner, H.; Tovar, G.
Konferenzbeitrag
Conference Paper
2007 Analytical assessment and functionalization of carbon nanotubes and bucky papers
Vohrer, Uwe; Zschörper, N.P.; Katzenmaier, V.; Barz, J.; Oehr, C.
Konferenzbeitrag
Conference Paper
2007 Verfahren zum Herstellen funktioneller Oberflaechenbereiche auf einem Flaechensubstrat
Weber, Achim; Tovar, G.; Borchers, Kirsten; Güttler, S.; Grzesiak, A.
Patent
2006 Biomimetic nanoparticles - concept, design and applications in biotechnology and biomedicine
Weber, A.; Gruber-Traub, C.; Herold, M.; Borchers, K.; Tovar, G.E.M.
Zeitschriftenaufsatz
Journal Article
2006 Fluorocarbon nano coatings for specific surface functionalization
Haupt, Michael; Barz, J.; Vohrer, Uwe; Hilgers, H.; Oehr, Christian
Zeitschriftenaufsatz
Journal Article
2006 POLY 483-Kinetic and thermodynamic behavior of recognition processes employing nano-spherical L-boc-phenylalanine anilide molecularly imprinted poly(MAA-co-EGDMA) monoliths
Sezgin, S.; Weber, A.; Herold, M.; Gruber-Traub, C.; Brunner, H.; Tovar, G.E.M.
Konferenzbeitrag
Conference Paper
2006 Nanoparticle-based diagnostic 3D-protein-biochip for Candida albicans
Borchers, K.; Hiller, E.; Urban, Constantin; Weber, A.; Rupp, S.; Tovar, G.E.M.
Konferenzbeitrag
Conference Paper
2006 POLY 474-A detailed investigation of the co-polymerization kinetics and particle formation of nanoscopical poly(EGDMA-co-MAA) by miniemulsion polymerization
Herold, M.; Muller, E.; Dettling, M.; Weber, A.; Brunner, H.; Tovar, G.E.M.
Konferenzbeitrag
Conference Paper
2006 NANOCYTES®-based protein-biochip. Mass-sensing device for diagnostic purposes
Borchers, K.; Hiller, E.; Weber, A.; Rupp, S.; Tovar, G.E.M.
Konferenzbeitrag
Conference Paper
2006 Niederdruckplasmaprozesse zur gezielten Funktionalisierung von Grenz- und Oberflächen
Haupt, Michael; Barz, J.; Vohrer, Uwe; Oehr, Christian
Aufsatz in Buch
Book Article
2006 POLY 677-NANOCYTES (TM): Inverse miniemulsion polymerization technology for specific protein recognition
Gruber-Traub, C.; Weber, A.; Dettling, M.; Herz, Marion; Herold, M.; Brunner, H.; Tovar, G.E.M.
Konferenzbeitrag
Conference Paper
2006 Dreidimensionale nano- und mikrostrukturierte Traeger
Tovar, G.; Weber, Achim; Brunner, H.; Borchers, Kirsten
Patent
2006 Influence of fluorocarbon plasma polymer films on the growth of primary human fibroblasts
Barz, J.; Haupt, Michael; Pusch, K.; Weimer, M.; Oehr, Christian
Zeitschriftenaufsatz
Journal Article
2005 ToF-SIMS characterisation of ultra-thin fluorinated carbon plasma polymer films
Gradowski, M. von; Jacoby, B.; Hilgers, H.; Barz, J.; Wahl, M.; Kopnarski, M.
Konferenzbeitrag
Conference Paper
2005 Functional core-shell nanoparticles and applications in protein-bio-chip technology
Weber, A.; Borchers, K.; Tovar, G.E.M.; Brunner, H.
Konferenzbeitrag
Conference Paper
2005 Protein-microarray constituted from streptavidin-coated nanoparticles deposited via poly(electrolyte) multilayers for analysis of biotinylated ligands by MALDI mass spectrometry and fluorescence imaging
Weber, A.; Borchers, K.; Schmucker, J.; Brunner, H.; Tovar, G.E.M.
Zeitschriftenaufsatz
Journal Article
2005 Ultrathin carbon-fluorine films
Barz, J.; Haupt, Michael; Hilgers, H.; Oehr, C.
Konferenzbeitrag
Conference Paper
2005 Moorganically modified core-shell nanoparticles for cell signalling
Weber, A.; Scheurich, P.; Pflzenmaier, K.; Schiestel, Thomas; Brunner, H.; Tovar, G.E.M.
Konferenzbeitrag
Conference Paper
2005 Nanotechnologische Werkzeuge für die Biotechnologie
Gruber-Traub, C.; Lehmann, M.; Tovar, G.E.M.; Brunner, H.
Zeitschriftenaufsatz
Journal Article
2005 Ultrathin carbon-fluorine film processing
Barz, J.; Haupt, Michael; Vohrer, Uwe; Hilgers, H.; Oehr, C.
Konferenzbeitrag
Conference Paper
2005 Molecular recognition by imprinted polymer nanospheres: Fundamental research and applications
Herold, M.; Tovar, G.E.M.; Gruber, C.; Dettling, M.; Sezgin, S.; Brunner, H.
Konferenzbeitrag
Conference Paper
2005 Fluor-Kohlenstoff-Nanoschichten zur gezielten Oberflächenfunktionalisierung
Haupt, Michael; Barz, J.; Vohrer, Uwe; Hilgers, H.; Oehr, Christian
Zeitschriftenaufsatz
Journal Article
2005 Microstructured layers of spherical biofunctional core-shell nanoparticles provide enlarged reactive surfaces for protein microarrays
Borchers, K.; Weber, A.; Brunner, H.; Tovar, G.E.M.
Zeitschriftenaufsatz
Journal Article
2005 Adhesion between fillers and matrices in composite materials
Mikonsaari, Irma; Hübner, Christof; Walitza, Eckehard; Gerber, Peter; Chaumette, Christiane; Müller, Michaela
Konferenzbeitrag
Conference Paper
2004 Modular structure of biochips based on microstructured deposition of functional nanoparticles
Weber, A.; Knecht, S.; Brunner, H.; Tovar, G.E.M.
Zeitschriftenaufsatz
Journal Article
2004 Bioconjugative polymer nanospheres studied by isothermal titration calorimetry
Weber, A.; Herold, M.; Brunner, H.; Tovar, G.E.M.
Zeitschriftenaufsatz
Journal Article
2004 Bio-microarrays based on functional nanoparticles
Tovar, G.E.M.; Weber, A.
Aufsatz in Buch
Book Article
2003 Investigation of the crystallisation behaviour of lead titanate (PT), lead zirconate (PZ) and lead zirconate titanate (PZT) by EXAFS-spectroscopy and x-ray diffraction
Feth, M.P.; Weber, A.; Merkle, R.; Reinöhl, U.; Bertagnolli, H.
Zeitschriftenaufsatz
Journal Article
2003 Modularer Aufbau von Biochips durch mikrostrukturierte Abscheidung von funktionellen Nanopartikeln
Weber, A.; Knecht, S.; Brunner, H.; Tovar, G.E.M.
Zeitschriftenaufsatz
Journal Article
2003 Nanopartikel-Biochips zur Untersuchung von C. albicans
Hauser, N.C.; Weber, A.; Tovar, G.; Rupp, S.
Zeitschriftenaufsatz
Journal Article
2003 Oxygen diffusion in alkyl-substituted titaniumoxo phthalocyanine films
Lüer, L.; Egelhaaf, H.-J.; Oelkrug, D.; Winter, G.; Hanack, M.; Weber, A.; Bertagnolli, H.
Konferenzbeitrag
Conference Paper
2003 Verbesserte strukturiert-funktionale Bindematrices fuer Biomolekuele
Weber, Achim; Schiestel, Thomas; Tovar, G.; Brunner, H.
Patent
2002 Molecularly imprinted nanospheres as synthetic affinity material for biotechnical application
Tovar, G.E.M.; Kräuter, I.; Weber, A.; Dettling, M.; Brunner, H.
Konferenzbeitrag
Conference Paper
2002 Isothermal titration calorimetry of molecularly imprinted polymer nanospheres
Weber, A.; Dettling, M.; Brunner, H.; Tovar, G.E.M.
Zeitschriftenaufsatz
Journal Article
2002 EXAFS and X-ray diffraction studies on sol-gel prepared zirconium titanium oxides
Feth, M.P.; Weber, A.; Merkle, R.; Reinohl, U.; Bertagnolli, H.
Zeitschriftenaufsatz
Journal Article
2002 Bioactive microarrays by microstructured deposition of functional nanoparticles
Tovar, G.E.M.; Weber, A.; Schiestel, Thomas; Knecht, S.; Steitz, B.; Brunner, H.
Konferenzbeitrag
Conference Paper
2002 Bioaktive Mikroarrays durch mikrostrukturierte Anlagerung von funktionellen Nanopartikeln
Weber, A.; Knecht, S.; Schiestel, Thomas; Brunner, H.; Tovar, G.E.M.
Konferenzbeitrag
Conference Paper
2001 Extended X-ray absorption fine structure analysis of the bipyridine copper complexes in atom transfer radical polymerization
Kickelbick, G.; Reinöhl, U.; Ertel, T.S.; Weber, A.; Bertagnolli, H.; Matyjaszewski, K.
Zeitschriftenaufsatz
Journal Article
2001 Structural investigations of oligomeric axially bridged ruthenium phthalocyanines by EXAFS spectroscopy
Weber, A.; Ertel, T.S.; Reinöhl, U.; Bertagnolli, H.; Leuze, M.; Hanack, M.
Zeitschriftenaufsatz
Journal Article
2000 Structural investigations of tetra- and octasubstituted (phthalocyanine)ruthenium complexes by EXAFS spectroscopy
Weber, A.; Ertel, T.S.; Reinöhl, U.; Bertagnolli, H.; Leuze, M.; Hees, M.; Hanack, M.
Zeitschriftenaufsatz
Journal Article
2000 Supported organometallic complexes. Part XX. Hydroformylation of olefins with rhodium(I) hybrid catalysts
Lindner, E.; Auer, F.; Baumann, A.; Wegner, P.; Mayer, H.A.; Bertagnolli, H.; Reinöhl, U.; Ertel, T.S.; Weber, A.
Zeitschriftenaufsatz
Journal Article
2000 Synthesis, characterisation and catalytic application of sol-gel processed cationic palladium(II) complexes
Lindner, E.; Baumann, A.; Wegner, P.; Mayer, H.A.; Reinöhl, U.; Weber, A.; Ertel, T.S.; Bertagnolli, H.
Zeitschriftenaufsatz
Journal Article
1999 Vorrichtung zur Messung der Oberflaechenspannung von Fluessigkeiten
Janocha, B.; Renzow, D.; Mueller, Michaela
Patent
1990 NADH-dependent mannitol dehydrogenase. Screening, isolation, kinetic parameters and behaviour in an enzyme membrane reactor
Schmidt, K.; Stolz, P.; Lutz, S.; Weber, A.; Wiesner, W.
Konferenzbeitrag
Conference Paper
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