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Harm-Anton Klok

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Publications associées (195)

Light-Activated, Bioadhesive, Poly(2-hydroxyethyl methacrylate) Brush Coatings

Dominique Pioletti, Harm-Anton Klok, Nariye Cavusoglu Ataman, Peyman Karami, Jian Wang

Rapid adhesion between tissue and synthetic materials is relevant to accelerate wound healing and to facilitate the integration of implantable medical devices. Most frequently, tissue adhesives are applied as a gel or a liquid formulation. This manuscript ...

American Chemical Society2020

Surface engineering living cells

Harm-Anton Klok

AMER CHEMICAL SOC2019

Mechanoresponsive Micro- and Nanoparticles

Harm-Anton Klok, Friederike Katharina Metze

Mechanical stimuli are ubiquitous in the human body. In contrast to biochemical stimuli such as pH, redox, hypoxia or enzymes as well as exogenous stimuli such as magnetic fields, temperature or ultrasound, endogenous biomechanical stimuli have only receiv ...

2019

Cellular Uptake and Intracellular Trafficking of Poly(N-(2-Hydroxypropyl) Methacrylamide)

Harm-Anton Klok, Olivier Burri, Graham Knott, Arne Seitz, Claudia Battistella, Anders Meibom, Romain Guiet, Stéphane Laurent Escrig

Cellular uptake and intracellular trafficking of polymer conjugates or polymer nanoparticles is typically monitored using fluorescence-based techniques such as confocal microscopy. While these methods have provided a wealth of insight into the internalizat ...

American Chemical Society2019

Swelling-Induced Chain Stretching Enhances Hydrolytic Degrafting of Hydrophobic Polymer Brushes in Organic Media

Harm-Anton Klok, Jian Wang

Hydrophilic polymer brushes grown via surface‐initiated polymerization from silicon oxide surfaces can detach or degraft in aqueous media. Degrafting of these chain end‐tethered polymers is believed to involve hydrolysis of bonds at the polymer–substrate i ...

Wiley-VCH Verlag GmbH2019

Peptide-mediated surface deposition of polymers and nanoparticles

Harm-Anton Klok

AMER CHEMICAL SOC2019

Future Directions at the Frontier of Polymer Science and Biology

Harm-Anton Klok

American Chemical Society2019

Synthesis of Loop Poly(Methyl Methacrylate) Brushes via Chain-End Postpolymerization Modification

Harm-Anton Klok, Piotr Mocny

Polymer brushes are typically densely grafted assemblies of polymer chains that are tethered via one end group to a solid substrate. Anchoring linear polymer chains via both end groups to a surface results in loop-type polymer brushes. Although loop polyme ...

American Chemical Society2019

Polymer brush interfaces for protein biosensing prepared by surface-initiated controlled radical polymerization

Harm-Anton Klok, Michael Badoux, Mark Billing

Thin polymer films that are able to bind proteins are of great relevance for a wide variety of biosensor and biochip applications. Some of these applications require films that have high protein binding capacities while others call for surfaces that allow ...

2019

Structure and functionality of polyelectrolyte brushes, a surface force perspective

Harm-Anton Klok, Xingyu Xu, Mark Billing, Jing Yu

The unique functionalities of polyelectrolyte brushes depend on several types of specific interactions, including solvent structure effects, hydrophobic forces, electrostatic interactions, and specific ion interactions. Subtle variations in the solution en ...

2018

Polymer-Brush-Templated Three-Dimensional Molybdenum Sulfide Catalyst for Hydrogen Evolution

Harm-Anton Klok, Xile Hu, Lucas-Alexandre Stern, Heron Vrubel, Tugba Bilgiç Tune, Piotr Mocny

Earth-abundant hydrogen evolution catalysts are essential for high-efficiency solar-driven water splitting. Although a significant amount of studies have been dedicated to the development of new catalytic materials, the microscopic assembly of these materi ...

2018

An Acid Test: Facile SI-ARGET-ATRP of Methacrylic Acid

Harm-Anton Klok, Piotr Mocny

Atom transfer radical polymerization (ATRP) of methacrylic acid (MAA) is challenging. Herein is reported a study of conditions for facile surface-initiated ATRP by activator regenerated electron transfer (SI-ARGET-ATRP) growth of poly-methacrylic acid (PMA ...

2018

pH-Sensitive Coiled-Coil Peptide-Cross-Linked Hyaluronic Acid Nanogels: Synthesis and Targeted Intracellular Protein Delivery to CD44 Positive Cancer Cells

Harm-Anton Klok, Jian Zhang, Yu Jiang

The clinical translation of protein drugs that act intracellularly is limited by the absence of safe and efficient intracellular protein delivery vehicles. Here, pH-sensitive coiled-coil peptide-cross-linked hyaluronic acid nanogels (HA-cNGs) were designed ...

American Chemical Society2018

Stimuli-Sensitive and -Responsive Polymer Biomaterials

Harm-Anton Klok

American Chemical Society2018

Polymers from Nature and for Nature

Harm-Anton Klok

American Chemical Society2018

Surface modification of living cells with synthetic polymer nano- and microparticles

Harm-Anton Klok

2018

Polymers at the Interface with Biology

Harm-Anton Klok

American Chemical Society2018

Polymers at Interfaces

Harm-Anton Klok

AMER CHEMICAL SOC2018

Trace element and isotope labels to study uptake and intracellular trafficking of polymer conjugates

Harm-Anton Klok

AMER CHEMICAL SOC2018

Synthesis and Postpolymerization Modification of Fluorine-End-Labeled Poly(Pentafluorophenyl Methacrylate) Obtained via RAFT Polymerization

Harm-Anton Klok, Claudia Battistella, Jie Chen

Chain-end-labeled polymers are interesting for a range of applications. In polymer nanomedicine, chain-end-labeled polymers are useful to study and help understand cellular internalization and intracellular trafficking processes. The recent advent of fluor ...

2018

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