Searched for: subject%3A%22Atomic%255C+Force%255C+Microscopy%22
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Tišma, M. (author), Kaljević, Jovana (author), Gruber, Stephan (author), Le, Tung B.K. (author), Dekker, C. (author)
Bacterial cells require DNA segregation machinery to properly distribute a genome to both daughter cells upon division. The most common system involved in chromosome and plasmid segregation in bacteria is the ParABS system. A core protein of this system - partition protein B (ParB) - regulates chromosome organization and chromosome...
review 2024
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Noom, J. (author), Smith, C.S. (author), Verbiest, G.J. (author), Katan, A.J. (author), Soloviev, O.A. (author), Verhaegen, M.H.G. (author)
We propose to use the State Estimation by Sum-of-Norms Regularisation (STATESON-)algorithm for recovering the tip-sample interaction in high-speed tapping mode atomic force microscopy (AFM). This approach enables accurate sample height estimation for each independent cantilever oscillation period, provided that the tip-sample interaction...
journal article 2023
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van der Maarel, Stefan (author)
High-Speed Atomic Force Microscopy is widely used for investigating biological architectures and the semiconductor industry. The main limitation comes from parachuting or the Wile E. Coyote effect. Parachuting is the phenomenon where the cantilever taps on the sample towards a steep decrease in height, but does not get adjusted for this decrease...
master thesis 2022
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Angeloni, L. (author), Popa, Bogdan (author), Nouri Goushki, M. (author), Minneboo, M.B. (author), Zadpoor, A.A. (author), Ghatkesar, M.K. (author), Fratila-Apachitei, E.L. (author)
Physical patterns represent potential surface cues for promoting osteogenic differentiation of stem cells and improving osseointegration of orthopedic implants. Understanding the early cell–surface interactions and their effects on late cellular functions is essential for a rational design of such topographies, yet still elusive. In this work...
journal article 2022
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Mahmoudabadi, Parvin (author), Tavakoli-Kakhki, Mahsan (author), Hassan HosseinNia, S. (author)
Accurate representation of the atomic force microscopy (AFM) system is not only necessary to achieve control objectives, but it is also beneficial for detecting the nanomechanical properties of the samples. To this end, this paper addresses the issue of controller design for the AFM system based on an accurate nonaffine nonlinear distributed...
journal article 2022
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Smith, Gregory N. (author), Brok, Erik (author), Schmiele, Martin (author), Mortensen, Kell (author), Bouwman, W.G. (author), Duif, C.P. (author), Hassenkam, Tue (author), Alm, Martin (author), Thomsen, Peter (author), Arleth, Lise (author)
By introducing hydrophilic polymers into silicone medical devices, highly beneficial biomedical properties can be realized. An established solution to introduce hydrophilic polymers is to form an interpenetrating polymer network (IPN) by performing the hydrogel synthesis in the presence of silicone swollen in supercritical carbon dioxide. The...
journal article 2021
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Angeloni, L. (author), Ganjian, M. (author), Nouri Goushki, M. (author), Mirzaali, Mohammad J. (author), Hagen, C.W. (author), Zadpoor, A.A. (author), Fratila-Apachitei, E.L. (author), Ghatkesar, M.K. (author)
Micro- and nano-patterns are gaining increasing attraction in several fields ranging from nanoelectronics to bioengineering. The mechanical properties of the nanostructures (nanopillars, nanotubes, nanowires, etc.) are highly relevant for many applications but challenging to determine. Existing mechanical characterization methods require...
journal article 2021
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Popa, Bogdan (author)
Objectives: With an increasing life expectancy in the western societies and more people practising extreme sports, the demand for orthopaedic implants is set to increase. Orthopaedic implant loosening is one of the main causes of revision surgeries, leading to increases in the costs of patient care and patient dissatisfaction. Better...
master thesis 2020
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Vasić, Borislav (author), Ralević, Uroš (author), Zobenica, Katarina Cvetanović (author), Smiljanić, Milče M. (author), Gajić, Radoš (author), Spasenović, Marko (author), Vollebregt, S. (author)
Chemical vapour deposition (CVD) is a promising method for producing large-scale graphene (Gr). Nevertheless, microscopic inhomogeneity of Gr grown on traditional metal substrates such as copper or nickel results in a spatial variation of Gr properties due to long wrinkles formed when the metal substrate shrinks during the cooling part of the...
journal article 2020
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Penning, Casper (author)
Viscoelasticity is a material property that is relevant in a variety of nanoscale materials and interfaces in medicine and industry. Therefore, a method of mechanical quantification has become exceedingly desired. In this thesis the Atomic force microscope (AFM) is applied to accurately characterize the mechanical behavior of viscoelastic...
master thesis 2020
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James, Matthew (author)
Dynamic Atomic Force Microscopy (dAFM) is an extremely powerful tool for exploring surface topology and nanoscale manipulation and characterization. A feature of dAFM is the existence of highly nonlinear forces between a cantilever tip and sample. One of these forces that plays a large role in operation of AFM is the van der Waals (vdW) force....
master thesis 2019
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Noom, Jacques (author)
Currently used imaging methods in Atomic Force Microscopy (AFM) including the use of a Lock-In Amplifier or a Phase-Locked Loop, are suboptimal. In this report, the image resolution in AFM is improved by detecting the tip-sample interaction using complete measurements of the input of the cantilever and its measured deflection. Two methods are...
master thesis 2019
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van den Brink, Bram (author), Alijani, F. (author), Ghatkesar, M.K. (author)
An experimental setup to perform dynamic analysis of a micro- and nano-mechanical system in vacuum, gas, and liquid is presented. The setup mainly consists of a piezoelectric excitation part and the chamber that can be either evacuated for vacuum, or filled with gas or water. The design of the piezoelectric actuator was based on a Langevin...
journal article 2019
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Chandrashekar, A. (author), Belardinelli, P. (author), Staufer, U. (author), Alijani, F. (author)
In this work, we perform a comprehensive analysis of the robustness of attractors in tapping mode atomic force microscopy. The numerical model is based on cantilever dynamics driven in the Lennard–Jones potential. Pseudo-arc-length continuation and basins of attraction are utilized to obtain the frequency response and dynamical integrity of...
journal article 2019
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Pronk, J.W. (author)
doctoral thesis 2018
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Fuchs, Dominique (author)
Aseptic loosening is a major cause of revision surgery in total hip arthroplasties. To slow down, or reverse loosening, tissue engineering interventions could provide solutions. One possible solution is collagen crosslinking, increasing the stiffness of the tissue. This research is a first investigation into UV-induced crosslinking on tissue...
master thesis 2018
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Chu, L. (author)
Atomic Force Microscopy (AFM) can not only image the topography of surfaces at atomic resolution, but can also measure accurately the different interaction forces, like repulsive, adhesive and lateral existing between an AFM tip and the sample surface. Based on AFM, various extended techniques have been developed such as colloidal probe AFM,...
doctoral thesis 2018
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Ando, Toshio (author), Bhamidimarri, Satya Prathyusha (author), Brending, Niklas (author), Colin-York, H. (author), Collinson, Lucy (author), De Jonge, Niels (author), De Pablo, P. J. (author), Debroye, Elke (author), Eggeling, Christian (author), Franck, Christian (author), Hoogenboom, J.P. (author)
Developments in microscopy have been instrumental to progress in the life sciences, and many new techniques have been introduced and led to new discoveries throughout the last century. A wide and diverse range of methodologies is now available, including electron microscopy, atomic force microscopy, magnetic resonance imaging, small-angle x...
review 2018
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Keyvani Janbahan, A. (author), Sadeghian, Hamed (author), Goosen, J.F.L. (author), van Keulen, A. (author)
The origin of amplitude reduction in Tapping Mode Atomic Force Microscopy (TM-AFM) is typically attributed to the shift in resonance frequency of the cantilever due to the nonlinear tip-sample interactions. In this paper, we present a different insight into the same problem which, besides explaining the amplitude reduction mechanism, provides...
journal article 2018
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Gribnau, Thomas (author)
Since its invention, the Atomic Force Microscope has emerged into one of the most useful tools in<br/>nanotechnology due to its acclaimed abilities in exploring surface topography, micro- and nanoscale manipulation<br/>and characterization. The nonlinear interaction between the cantilever tip and the sample surface<br/>has been studied in great...
master thesis 2017
Searched for: subject%3A%22Atomic%255C+Force%255C+Microscopy%22
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