Responsive polymers

Poly-N-isopropylacrylamide Nanogels and Microgels at Fluid Interfaces
Marcel Rey, Miguel Angel Fernandez-Rodriguez, Matthias Karg, Lucio Isa, Nicolas Vogel:
Acc. Chem. Res., 53, 414-424 (2020).
doi: 10.1021/acs.accounts.9b00528
link     abstract    
From normal diffusion to superdiffusion: Photothermal heating of plasmonic core-shell microgels
Nico Carl, Julian Sindram, Markus Gallei, Stefan U. Egelhaaf, Matthias Karg:
Phys. Rev. E, 100, 052605 (2019).
doi: 10.1103/PhysRevE.100.052605
link     abstract  

The Next Generation of Colloidal Probes: A Universal Approach for Soft and Ultra‐Small Particles
Andreas Mark, Nicolas Helfricht, Astrid Rauh, Matthias Karg, Georg Papastavrou:
Small, 15, 1902976 (2019).

doi: 10.1002/smll.201902976
link     abstract 
Nanogels and Microgels: From Model Colloids to Applications, Recent Developments, and Future Trends
Matthias Karg, Andrij Pich, Thomas Hellweg, Todd Hoare, L. Andrew Lyon, J. J. Crassous, Daisuke Suzuki, Rustam A. Gumerov, Stefanie Schneider, Igor. I. Potemkin, Walter Richtering:
Langmuir, 35, 6231-6255 (2019).
doi: 10.1021/acs.langmuir.8b04304
link     abstract
Tunable 2D Binary Colloidal Alloys for Soft Nanotemplating
Miguel Ángel Fernández-Rodríguez, Roey Elnathan, Ran Ditcovski, Fabio Grillo, Gaurasundar Marc Conley, Flavia Timpu, Astrid Rauh, Karen Geisel, Tal Ellenbogen, Rachel Grange, Frank Scheffold, Matthias Karg, Walter Richtering, Nico H. Voelcker, Lucio Isa:
Nanoscale, 10, 22189-22195 (2018).
doi: 10.1039/C8NR07059H 
link     abstract  
Dynamics and wetting behavior of core-shell soft particles at a fluid-fluid interface
Siddarth Ayakulangara Vasudevan, Astrid Rauh, Martin Kroger, Matthias Karg, Lucio Isa:
Langmuir, 34, 15370-15382 (2018).
doi: 10.1021/acs.langmuir.8b03048
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Plasmonic and colloidal stability behaviours of Au-acrylic coreshell nanoparticles with thin pH-responsive shells
Shanglin Wu, Mingning Zhu, Dongdong Lu, QIng Lian, Ben Spencer, Daman J Adlam, Judith A Hoyland, Kirsten Volk, Matthias Karg, Brian R Saunders:
Nanoscale, 10, 18565-18575 (2018).
doi: 10.1039/C8NR07440B
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Stable in bulk and aggregating at the interface: comparing core-shell nanoparticles in suspension and at fluid interfaces
Siddarth Ayakulangara Vasudevan, Astrid Rauh, Lorenzo Barbera, Matthias Karg, Lucio Isa:
Langmuir, 34, 886-895 (2018).
doi: 10.1021/acs.langmuir.7b02015
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Role of Absorbing Nanocrystal Cores in Soft Photonic Crystals: A Spectroscopy and SANS Study

Astrid Rauh, Nico Carl, Ralf Schweins, Matthias Karg:

Langmuir, 34, 854-867 (2018).

doi: 10.1021/acs.langmuir.7b01595

link     abstract   

Fully Reversible, Quantitative Phase Transfer of Gold Nanoparticles using Bifunctional PNIPAM Ligands
Tobias Honold, Dominik Skrybeck, Kristina G. Wagner, Matthias Karg:
Langmuir, 33(1), 253-261 (2017).
doi: 10.1021/acs.langmuir.6b03874
link     abstract  

Compression of hard core-soft shell nanoparticles at liquid-liquid interfaces: influence of the shell thickness

Astrid Rauh, Marcel Rey, Lorenzo Barbera, Michele Zanini, Matthias Karg, Lucio Isa:

Soft Matter,13, 158-169 (2017).
doi: 10.1039/C6SM01020B

link     abstract    

Laser Flash Photolysis of Au-PNIPAM Core−Shell Nanoparticles: Dynamics of the Shell Response
Sean Murphy, Sarah Jaber, Cameron Ritchie, Matthias Karg, Paul Mulvaney:
Langmuir, 32(47), 12497-12503 (2016).
doi: 10.1021/acs.langmuir.6b02781
link     abstract   

Multi-Shell Hollow Nanogels with Responsive Shell Permeability
Andreas J. Schmid, Janine Dubbert, Andrey A. Rudov, Jan Skov Pedersen, Peter Lindner, Matthias Karg, Igor I. Potemkin, Walter Richtering:
Scientific Reports, 6, 22736 (2016).
doi: 10.1038/srep22736
link     abstract    

Functional Materials Design through Hydrogel Encapsulation of Inorganic Nanoparticles: Recent Developments and Challenges
M. Karg:
Macromolecular Chemistry and Physics, 217, 242-255 (2016).
doi: 10.1002/macp.201500334
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Influence of Temperature on the Colloidal Stability of Polymer-Coated Gold Nanoparticles in Cell Culture Media
M. V. Zyuzin, T. Honold, S. Carregal-Romero, K. Kantner, M. Karg, W. J. Parak:
Small, 12(13), 1723-1731 (2016).
doi: 10.1002/smll.201503232
link     abstract 

Seeded precipitation polymerization for the synthesis of gold-hydrogel core-shell particles: the role of surface functionalization and seed concentration
A. Rauh, T. Honold, M. Karg:
Colloid & Polymer Science, 294(1), 37-47 (2016).
doi: 10.​1007/​s00396-015-3782-6
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Time-Controlled Colloidal Superstructures: Long-Range Plasmon Resonance Coupling in Particle Monolayers
K. Volk, J. P. S. Fitzgerald, M. Retsch, M. Karg:
Advanced Materials, 27(45), 7332-7337 (2015).
doi: 10.1002/adma.201503672
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LCST and UCST in One: Double Thermoresponsive Behavior of Block Copolymers of Poly(ethylene glycol) and Poly(acrylamide-co-acrylonitrile)
F. Käfer, F. Liu, U. Stahlschmidt, V. Jérome, R. Freitag, M. Karg, S. Agarwal:
Langmuir, 31(32), 8940-8946 (2015).
doi: 10.1021/acs.langmuir.5b02006
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Core–Shell–Shell and Hollow Double-Shell Microgels with Advanced Temperature Responsiveness
J. Dubbert, K. Nothdurft, M. Karg, W. Richtering:
Macromolecular Rapid Communications, 36(2), 159-164 (2015).
doi: 10.1002/marc.201400495
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Plasmonic gold–poly(N-isopropylacrylamide) core–shell colloids with homogeneous density profiles: a small angle scattering study
M. Dulle, S. Jaber, S. Rosenfeldt, A. Radulescu, S. Förster, P. Mulvaney, M. Karg:
Physical Chemistry Chemical Physics, 17, 1354-1367 (2015).
doi: 10.1039/C4CP04816D
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How Hollow Are Thermoresponsive Hollow Nanogels?
J. Dubbert, T. Honold, J. S. Pederson, A. Radulescu, M. Drechsler, M. Karg, W. Richtering:
Macromolecules, 47(24), 8700-8708 (2014).
doi: 10.1021/ma502056y
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Interaction of gold nanoparticles with thermoresponsive microgels: influence of the cross-linker density on optical properties
K. Gawlitza, S. T. Turner, F. Polzer, S. Wellert, M. Karg, P. Mulvaney, R. von Klitzing:
Physical Chemistry Chemical Physics, 15, 15623-15631 (2013).
doi: 10.1039/C3CP51578H
link     abstract 

Thermoresponsive poly-(N-isopropylmethacrylamide) microgels: Tailoring particle size by interfacial tension control
K. von Nessen, M. Karg, T. Hellweg:
Polymer, 54(21), 5499-5510 (2013).
doi: 10.1016/j.polymer.2013.08.027
link     abstract 

Poly-NIPAM Microgels with Different Cross-Linker Densities
M. Karg, S. Prévost, A. Brandt, D. Wallacher, R. von Klitzing, T. Hellweg:
Progress in Colloid and Polymer Science, 140, 63-76: Springer International Publishing Switzerland (2013).
doi: 10.1007/978-3-319-01683-2__6
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Multifunctional inorganic/organic hybrid microgels - An overview of recent developments in synthesis, characterization, and application
M. Karg:
Colloid & Polymer Science, 290(8), 673-688 (2012).
doi: 10.1007/s00396-012-2644-8
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Wrinkle-assisted linear assembly of hard-core/soft-shell particles: impact of the soft shell on the local structure
M. Müller, M. Karg, A. Fortini, T. Hellweg, A. Fery:
Nanoscale, 4, 2491-2499 (2012).
doi: 10.1039/C2NR11591C
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2D assembly of gold–PNIPAM core–shell nanocrystals
S. Jaber, M. Karg, A. Morfa, P. Mulvaney:
Physical Chemistry Chemical Physics, 13, 5576-5578 (2011).
doi: 10.1039/C0CP02494E
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Surface Plasmon Spectroscopy of Gold−Poly-N-isopropylacrylamide Core−Shell Particles
M. Karg, S. Jaber, T. Hellweg, P. Mulvaney:
Langmuir, 27(2), 820-827 (2011).
doi: 10.1021/la1039249
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Self-Assembly of Tunable Nanocrystal Superlattices Using Poly-(NIPAM) Spacers
M. Karg, T. Hellweg, P. Mulvaney:
Advanced Functional Materials, 21(24), 4668-4676 (2011).
doi: 10.1002/adfm.201101115
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Well defined hybrid PNIPAM core-shell microgels: size variation of the silica nanoparticle core
M. Karg, S. Wellert, S. Prevost, R. Schweins, C. Dewhurst, L. M. Liz-Marzán, T. Hellweg:
Colloid & Polymer Science, 289(5-6), 699-709 (2011).
doi: 10.1007/s00396-010-2327-2
link     abstract 

Temperature-Dependent Gelation Behaviour of Double Responsive P2VP-b-PEO-b-P(GME-co-EGE) Triblock Terpolymers: A SANS Study
M. Karg, S. Reinicke, A. Lapp, T. Hellweg, H. Schmalz:
Macromolecular Symposia, 306-307(1), 77-88 (2011).
doi: 10.1002/masy.201000142
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Flow-Induced Ordering in Cubic Gels Formed by P2VP-b-PEO-b-P(GME-co-EGE) Triblock Terpolymer Micelles: A Rheo-SANS Study
S. Reinicke, M. Karg, A. Lapp, L. Heymann, T. Hellweg, H. Schmalz:
Macromolecules, 43(23), 10045-10054 (2010).
doi: 10.1021/ma101768b
link     abstract  

Multiresponsive Hybrid Colloids Based on Gold Nanorods and Poly(NIPAM-co-allylacetic acid) Microgels: Temperature- and pH-Tunable Plasmon Resonance
M. Karg, Y. Lu, E. Carbó-Argibay, I. Pastoriza-Santos, J. Pérez-Juste, L.M. Liz-Marzán, T. Hellweg:
Langmuir, 25(5), 3163-3167 (2009).
doi: 10.1021/la803458j
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Smart inorganic/organic hybrid microgels: Synthesis and characterisation
M. Karg, T. Hellweg:
Journal of Materials Chemistry, 19, 8714-8727 (2009).
doi: 10.1039/B820292N
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New “smart” poly(NIPAM) microgels and nanoparticle microgel hybrids: Properties and advances in characterisation
M. Karg, T. Hellweg:
Current Opinion in Colloid & Interface Science, 14(6), 438-450 (2009).
doi: 10.1016/j.cocis.2009.08.002
link     abstract  

Smart hydrogels based on double responsive triblock terpolymers
S. Reinicke, J. Schmelz, A. Lapp, M. Karg, T. Hellweg, H. Schmalz:
Soft Matter, 5, 2648-2657 (2009).
doi: 10.1039/B900539K
link     abstract  

Temperature, pH, and Ionic Strength Induced Changes of the Swelling Behavior of PNIPAM−Poly(allylacetic acid) Copolymer Microgels
M. Karg, I. Pastoriza-Santos, B. Rodriguez-González, R. von Klitzing, S. Wellert, T. Hellweg:
Langmuir, 24(12), 6300-6306 (2008).
doi: 10.1021/la702996p
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Encapsulation and Growth of Gold Nanoparticles in Thermoresponsive Microgels
R. Contreras-Cáceres, A. Sánchez-Iglesias, M. Karg, I. Pastoriza-Santos, J. Pérez-Juste, J. Pacifico, T. Hellweg, A. Fernández-Barbero, L.M. Liz-Marzán:
Advanced Materials, 20(9), 1666-1670 (2008).
doi: 10.1002/adma.200800064
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Thermoresponsive core–shell microgels with silica nanoparticle cores: size, structure, and volume phase transition of the polymer shell
M. Karg, S. Wellert, I. Pastoriza-Santos, A. Lapp, L.M. Liz-Marzán, T. Hellweg:
Physical Chemistry Chemical Physics, 10, 6708-6716 (2008).
doi: 10.1039/B802676A
link     abstract   

Nanorod-Coated PNIPAM Microgels: Thermoresponsive Optical Properties

M. Karg, I. Pastoriza-Santos, J. Pérez-Juste, T. Hellweg, L.M. Liz-Marzán:

Small, 3(7), 1222-1229 (2007).
doi: 10.1002/smll.200700078 

link     abstract    

A Versatile Approach for the Preparation of Thermosensitive PNIPAM Core–Shell Microgels with Nanoparticle Cores

M. Karg, I. Pastoriza-Santos, L. M. Liz-Marzán, T. Hellweg:

ChemPhysChem, 7(11), 2298-2301 (2006).
doi: 10.1002/cphc.200600483 

link     abstract  

Kolloide und Nanooptik

Institutsleiter

Photo of Matthias  Karg

Prof. Dr. Matthias Karg

Heinrich-Heine-Universität Physikalische Chemie I Universitätsstr. 1
Gebäude: 26.43.02.41
D-40225 Düsseldorf (Germany)
Tel.: +49 211 81-12400

Sekretariat

Andrea Lotzwick

Gebäude: 26.43
Etage/Raum: 02.39
Tel.: +49 211 81-12110

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Mo.-Fr. 08:00 - 12:00

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Verantwortlich für den Inhalt: E-Mail sendenMatthias Karg