Searched for: subject%3A%22AFM%22
(1 - 20 of 47)

Pages

document
van der Gugten, Gijs (author)
Much research is conducted on the biomechanical properties of cells, particularly in cancer research. Cell stiffness and cell adhesion are two properties often studied, because they are important for the functioning of a cell. To study these properties, atomic force microscopy(AFM) is often used, using nanoindentation for stiffness analysis and...
master thesis 2023
document
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
document
Marangis, Demetris (author)
The discovery of DNA origami nanotechnology has opened new opportunities in this field due to the versatility of the shapes and sizes that can be generated, the ease of modification and functionalization with molecular resolution, and its biocompatibility. Using Watson-Crick base pairing as the main driver in the self-assembly procedure, DNA...
master thesis 2022
document
Chandrashekar, A. (author)
Most physical phenomena be it mechanical, chemical or biological are inherently nonlinear in nature. In fact, it is the linear phenomenon that is the exception rather than the rule. By harnessing these nonlinearities one can obtain far greater information about the underlying physics and develop more sensitive and efficient devices. This is...
doctoral thesis 2022
document
Blankespoor, Maarten (author)
The processes that take place within cells are complex. Single-cell analysis is a method that is employed to gain further understanding of the working mechanisms on a single-cellular level. The controlled transport of substances through the cell membrane is important for studying the behaviour and responses of single living cells. Femtopipettes...
master thesis 2022
document
Belardinelli, P. (author), Chandrashekar, A. (author), Wiebe, R. (author), Alijani, F. (author), Lenci, S. (author)
Modal interactions are pervasive effects that commonly emerge in nanomechanical systems. The coupling of vibrating modes can be leveraged in many ways, including to enhance sensing or to disclose complex phenomenologies. In this work we show how machine learning and data-driven approaches could be used to capture intermodal coupling. We...
journal article 2022
document
Chardon, Florian (author), Japaridze, A. (author), Witt, Hannes (author), Velikovsky, Leonid (author), Chakraborty, Camellia (author), Wilhelm, Therese (author), Dumont, Marie (author), Yang, W.W.W. (author), Dekker, C. (author)
Chromosome inheritance depends on centromeres, epigenetically specified regions of chromosomes. While conventional human centromeres are known to be built of long tandem DNA repeats, much of their architecture remains unknown. Using single-molecule techniques such as AFM, nanopores, and optical tweezers, we find that human centromeric DNA...
journal article 2022
document
Nahar, Sayeda (author), Porot, Laurent (author), Apostolidis, P. (author), Chailleux, Emmanuel (author)
In the past years, the use of liquid additives as bitumen modifiers has increased to enhance or adjust the properties of bitumen for wide range of applications. Their molecular composition and mutual interaction result in a specific phase morphology in the binders. Hence, there is a need to evaluate the phase and interphase framework and...
abstract 2022
document
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
document
van Altena, Pieter (author)
Facioscapulohumeral muscle dystrophy (FSHD) is the third most common muscle disease in the world. No cure has been found for FSHD, and current treatments focus on alleviating the symptoms. The disease is caused by a genetic error in 1/1000 - 1/200 of the nuclei in a multinucleated skeletal muscle cell. Studying that specific nucleus, by removing...
master thesis 2021
document
Paardekooper, Stijn (author)
Any resonance based sensing method such as AFM or mass sensing using microfluidic cantilevers require high frequency stability. For mass measurement, a stable frequency allows for a lower mass resolution. One of the most commonly used methods to actuate these resonators is using piezoacoustics. A major downside of this method is the presence of...
master thesis 2021
document
Gonthier, Julien Nicolas (author), Wilson, William (author), Georget, Fabien (author), Scrivener, Karen (author)
The incorporation of supplementary cementitious materials (SCMs) in cement pastes enables both decreasing CO2 emissions and increasing the concrete durability, notably with a better resistance against chloride ingress and thus retarding the chlorideinduced corrosion of steel rebars. Nevertheless, a better understanding of the chloride fixation...
conference paper 2021
document
Kar, Satyakam (author)
Microstructure-corrosion property correlation is an open question in the field of materials science. The microstructure of metals and alloys consists of several features with different individual corrosion response. The corrosion behavior of the macroscopic system is an outcome of the complex interaction of the components of microstructure....
master thesis 2020
document
Thiruvallur Eachambadi, Raghavendran (author), Bonné, Robin (author), Cornelissen, Rob (author), Hidalgo-Martinez, Silvia (author), Vangronsveld, Jaco (author), Meysman, F.J.R. (author), Valcke, Roland (author), Cleuren, Bart (author), Manca, Jean V. (author)
Cable bacteria are an emerging class of electroactive organisms that sustain unprecedented long-range electron transport across centimeter-scale distances. The local pathways of the electrical currents in these filamentous microorganisms remain unresolved. Here, the electrical circuitry in a single cable bacterium is visualized with...
journal article 2020
document
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
document
Keyvani Janbahan, A. (author), Tamer, M.S. (author), van Wingerden, J.W. (author), Goosen, J.F.L. (author), van Keulen, A. (author)
Many investigations have focused on steady-state nonlinear dynamics of cantilevers in tapping mode atomic force microscopy (TM-AFM). However, a transient dynamic model—which is essential for a model-based control design—is still missing. In this paper, we derive a mathematical model which covers both the transient and steady-state behavior....
journal article 2019
document
Chu, L. (author), Bus, M. (author), Korobko, A.V. (author), Besseling, N.A.M. (author)
We calibrate the lateral mode AFM (LFM) by determining the position-sensitive photodetector (PSPD) signal dependency on the lateral tip displacement, which is analogous to the constant-compliance region in normal-force calibration. By stick-slip on stiff, amorphous surfaces (silica or glass), the lateral tip displacement is determined...
journal article 2019
document
Huigsloot, Menno (author)
High performance machines such as those used in the semiconductor industry, robotics or racing engines have lots of fast moving parts. The dynamic properties of these moving parts are crucial to the performance of the machine. Therefore these moving parts have to be carefully designed which is often a very time consuming iterative process. In...
master thesis 2018
document
Kramer, Arnoud (author)
In collaboration with the technical university of Twente, Leiden Probe Microscopy (LPM) has built an instrument to study thin film oxide growth during pulsed laser deposition (PLD). Thin filmed (perovskite) oxides have evoked an interest of material scientist, because they inhibit physical properties such as superconductivity, ferromagnetism,...
master thesis 2018
document
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
Searched for: subject%3A%22AFM%22
(1 - 20 of 47)

Pages