Electron Microscopy
In-situ electron microscopy
Electrochemistry

Though my background is in engineering and natural sciences, my research crosses traditional disciplinary boundaries. I have worked on climate data, climate change, renewable energies, and the effect of pollution on the biosphere (including on humans). I am currently working on better understanding climate-fueled compound and cascading climate extremes.

Brain Connectivity; Neuropsychiatry; Brain stimulation; Brain dynamics

Radiocarbon Dating
Chronology
Cosmogenic Isotope Production

Accelerator Physics, Radiation Physics, Medical Physics, Radiation Therapy, Fixed Target Experiments, Detectors

Grant support
Project management
Research impact

My primary role is to assist scientists and other research personnel with securing research funding to pursue their scientific activities at the departments of Biomedical Sciences of Cells and Systems (BSCS) at the University Medical Center Groningen (UMCG). This includes tasks ranging from drafting grant proposals to project management. Further, I take part in the departmental outreach activities to increase the research footprint.

Previously trained as a PhD scholar in experimental physics with strong communication skills developed from extensive teaching, presenting and writing experience, and ability to work independently or as part of a team. Previous research experience is in the areas of Spin electronics, Nanodevice fabrication, Cleanroom processing, Data Analysis, Critical Literature Review, and Experimental Design.

Experimental Solid state physics, Raman Spectroscopy, Material Science, Python Coding

Physics, Applied Physics, Materials Science, Nanostructured Materials, Electron Microscopy, Lasers, Coatings, Thin Films and Interfaces.

Physics practicals
Radiation protection
Radiation Protection Expert (ANVS registered)
Optical and laser diagnostics
Spectroscopy

Materials Science, Nanoscience and Nanotechnology, Electron Microscopy, Surfaces and Interfaces, Phase-change materials, Chalcogenide materials, Pulsed Laser Deposition

Physics of solution-processable semiconductors and devices thereof. See our group website for more information.

Photophysics and Optoelectronics of hybrid semiconductors and nanomaterials

High entropy alloys
Rapidly quenched materials
Materials microstructural characterization
In-situ scanning electron microscopy
Dual beam elecron-ion beam microscopy
Electron back-scatter diffraction (EBSD)
Electron energy dispersive spectrocopy (EDS)

Research in the Onck group aims at understanding the micromechanical and functional behavior of (biological) materials based on an accurate description of the underlying (bio-) physical mechanisms. Computational techniques (e.g. molecular dynamics, finite element methods and solid-fluid interaction techniques) are being used to explicitly account for the physical mechanisms at the relevant length scales.

Primary focus at the moment is on:
(i) Transport through the nuclear pore complex
(ii) Phase separation and aggregation of disordered proteins
(iii) Molecular chaperones in neurodegenerative diseases
(iii) Soft-robotic nature-inspired microswimmers and magnetic artificial cilia.

For more details, visit the group's web-page.

Nanoscale surface roughness, Casimir forces, Nano/microelectromechanical systems, Nanoparticles, Kinetic roughening, Scanning probe microscopy, Adhesion
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Education Courses: Mathematical Physics (BSc Physics, 1st year), Electronics (BSc Biomedical Engineering, 3rd year), Surface Interactions in Electromechanical Systems (MSc Applied Physics, 1st year)
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Representative  publications:
*Casimir Force Contrast Between Amorphous and Crystalline Phases of AIST, Adv. Funct. Mat.
*Significance of the Casimir force and surface roughness for actuation dynamics of MEMS, Phys. Rev. B   
*Sensitivity of micromechanical actuation on amorphous to crystalline phase transformations under the influence of Casimir forces, Phys. Rev. B       
*Casimir forces from conductive silicon carbide surfaces, Phys. Rev. B   
*Synthesis and exceptional thermal stability of Mg-based bimetallic nanoparticles during hydrogenation, Nanoscale   
*Influence of surface roughness on dispersion forces ( Review Article), Advances in Colloid and Interface Science.    
*Roughness controlled superhydrophobicity onsingle nanometer length scale with metal nanoparticles , Royal Society Chemistry Advances  
*Nonlinear actuation dynamics of driven Casimir oscillators with rough surfaces,  Phys. Rev. Applied  
*Casimir force measurements from silicon carbide surfaces , Phys. Rev. B  
*Synthesis and morphology of iron–iron oxide core–shell nanoparticles produced by high pressure gas condensation, Nanotechnology
*Capillary-force measurement on SiC surfaces, Phys. Rev. E  
*Control surface wettability with nanoparticles from phase-change materials, Appl. Phys. Lett.
*Strategies to initiate and control the nucleation behavior of bimetallic nanoparticles,  Nanoscale
*Global consequences of a local Casimir force: Adhered cantilever,  Appl.Phys.Lett
*Rough Electrode Creates Excess Capacitance in Thin-Film Capacitors,  ACS Appl. Mater. Interfaces
*Chaotic behavior in Casimir oscillators: A case study for phase-change materials,  Phys. Rev. E
*Shape and structural motifs control of MgTi bimetallic nanoparticles using hydrogen and methane as trace impurities,  Nanoscale
*Dependence of chaotic actuation dynamics of Casimir oscillators on optical properties and electrostatic effects,  EPJB
*Dependence of chaotic behavior on optical properties and electrostatic effects in double-beam torsional Casimir actuation,  Phys. Rev. E
*Measurement of the Casimir force in a gas and in a liquid, Phys. Rev. B (Rapid Com.)
*Roughness dependent wettability of sputtered copper thin films: The effect of the local surface slope, J. Appl. Phys.
*Sensitivity of chaotic behavior to low optical frequencies of a double-beam torsional actuator, Phys. Rev. E
*Roughness-dependent wetting behavior of vapor-deposited metallic thin films, Phys.Rev.E
*Dependence of non-equilibrium Casimir forces on material optical properties toward chaotic motion during device actuation (Featured article), Chaos
*Effect of Airborne Hydrocarbons on the Wettability of Phase Change Nanoparticle Decorated Surfaces, ACS Nano
*Comparison of Casimir forces and electrostatics from conductive SiC-Si/C and Ru surfaces, Phys. Rev. B
*Gas-Phase Synthesis of Tunable-Size Germanium Nanocrystals by Inert Gas Condensation, Chemistry of Materials
*Sensitivity of non-equilibrium Casimir forces on low frequency optical properties towards chaotic motion of microsystems: Drude vs. Plasma model (Featured article), Chaos
*Measuring the Dispersion Forces Near the van der Waals–Casimir Transition, Phys. Rev. Applied
*Applications of Casimir forces: Nanoscale actuation and adhesion, Featured Article, Appl. Phys. Lett.
*Tunable wettability of polymer films by partial engulfment of nanoparticles, Phys. Rev. Materials
*Casimir and electrostatic forces from Bi2Se3 thin films of varying thickness, Phys. Rev. B Letters
*Tailoring Growth Kinetics toward a Size-Dependent Work Function of Ge Nanocrystals Synthesized by Inert Gas Condensation, J. Phys. Chem. C
*Sensitivity of actuation dynamics on normal and lateral Casimir forces: Interaction of phase change and topological insulator materials, Chaos __________________________________________
Research/Outreach-related  activities:
*AIPScilight: Unanswered questions about the application of Casimir forces  
*Casimir effect put to work as a nano-switch /  New Scientist  
*Licht uit leegte  (Volkskrant)
*Specia Issue: CASIMIR PHYSICS        
*National Science Agenda: Casimir Natuurkunde voor innovatie: waarom is dit nuttig?
*Casimir Physics workshop 2016: Casimir and van der Waals Physics: Progress and Prospects (2016) 
*Casimir physics in the Zernike Institute news
* Biggest unanswered questions in Physics  | we are not done yet....!
* World Technology Evaluation
*Is Quantum Reality Analog after All?
*Rough Line Edge Estimation from SEM Images
*Predicted and proven, but yet to be tamed: uncovering the mysteries of the Casimir force

Nearby Galaxies: structure, stellar populations, kinematics; Galaxy Formation and Evolution; Galaxy Evolution in Clusters

Computational Physics

Biophysics, diamond, nanotechnology, magnetometry, equipment development

Quantum Optics, semiconductor optics, semiconductor device physics