Searched for: author%3A%22Ghatkesar%2C+M.K.%22
(1 - 20 of 36)

Pages

List view
Grid view
document
Manzaneque Garcia, T. (author), Ghatkesar, M.K. (author), Alijani, F. (author), Xu, M. (author), Norte, R.A. (author), Steeneken, P.G. (author)
Resonant sensors hold great promise in measuring small masses, to enable future mass spectrometers, and small forces in applications like atomic and magnetic force microscopy. During the last decades, scaling down the size of resonators has led to huge enhancements in sensing resolution, but has also raised the question of what the ultimate...
journal article 2023
document
Zhu, Haoyu (author), Özkayar, G. (author), Lötters, J.C. (author), Tichem, M. (author), Ghatkesar, M.K. (author)
Organ-on-a-chip (OoC) devices require the precise control of various media. This is mostly done using several fluid control components, which are much larger than the typical OoC device and connected through fluidic tubing, i.e., the fluidic system is not integrated, which inhibits the system’s portability. Here, we explore the limits of...
journal article 2023
document
Özkayar, G. (author), Wang, Z. (author), Lötters, J.C. (author), Tichem, M. (author), Ghatkesar, M.K. (author)
Reciprocating piezoelectric micropumps enable miniaturization in microfluidics for lab-on-a-chip applications such as organs-on-chips (OoC). However, achieving a steady flow when using these micropumps is a significant challenge because of flow ripples in the displaced liquid, especially at low frequencies or low flow rates (<50 µL/min)....
journal article 2023
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
Daryani, Mehdi Mollaie (author), Manzaneque Garcia, T. (author), Wei, J. (author), Ghatkesar, M.K. (author)
The use of nanoparticles has been growing in various industrial fields, and concerns about their effects on health and the environment have been increasing. Hence, characterization techniques for nanoparticles are essential. Here, we present a silicon dioxide microfabricated suspended microchannel resonator (SMR) to measure the mass and...
journal article 2022
document
Özkayar, G. (author), Lötters, J.C. (author), Tichem, M. (author), Ghatkesar, M.K. (author)
Microfluidic organs-on-chips (OoCs) technology has emerged as the trend for in vitro functional modeling of organs in recent years. Simplifying the complexities of the human organs under controlled perfusion of required fluids paves the way for accurate prediction of human organ functionalities and their response to interventions like...
review 2022
document
Liu, Z. (author), Hedayati, Pegah (author), Ghatkesar, M.K. (author), Sun, Weichao (author), Onay, Hayati (author), Groenendijk, Dirk (author), van Wunnik, Johannes (author), Sudhölter, Ernst J. R. (author)
Surfactant losses by adsorption to rock surfaces make surfactant-based enhanced oil recovery economically less feasible. We investigated polyacrylate (PA) as a sacrificial agent in the reduction of anionic surfactant adsorption with focus on calcite surfaces by using quartz crystal microbalance with dissipation monitoring. It was found that...
journal article 2021
document
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
document
Modaresifar, K. (author), Ganjian, M. (author), Angeloni, L. (author), Minneboo, M.B. (author), Ghatkesar, M.K. (author), Hagedoorn, P.L. (author), Fratila-Apachitei, E.L. (author), Zadpoor, A.A. (author)
Despite the potential of small-scale pillars of black titanium (bTi) for killing the bacteria and directing the fate of stem cells, not much is known about the effects of the pillars’ design parameters on their biological properties. Here, three distinct bTi surfaces are designed and fabricated through dry etching of the titanium, each...
journal article 2021
document
Nouri Goushki, M. (author), Angeloni, L. (author), Modaresifar, K. (author), Minneboo, M.B. (author), Boukany, P. (author), Mirzaali, Mohammad J. (author), Ghatkesar, M.K. (author), Fratila-Apachitei, E.L. (author), Zadpoor, A.A. (author)
The surface topography of implantable devices is of crucial importance for guiding the cascade of events that starts from the initial contact of the cells with the surface and continues until the complete integration of the device in its immediate environment. There is, however, limited quantitative information available regarding the...
journal article 2021
document
Mirzaali Mazandarani, M. (author), Herranz de la Nava, A. (author), Gunashekar, D. (author), Nouri Goushki, M. (author), Veeger, R. P.E. (author), Grossman, Q. (author), Angeloni, L. (author), Ghatkesar, M.K. (author), Fratila-Apachitei, E.L. (author), Ruffoni, D. (author), Doubrovski, E.L. (author), Zadpoor, A.A. (author)
Functional gradients are material transitions that are found in nature and are known to result in materials with superior properties and multiple functionalities. The emerging multi-material 3D printing (=additive manufacturing, AM) techniques provide a powerful tool for the design and fabrication of bioinspired functionally graded materials ...
journal article 2020
document
Nouri Goushki, M. (author), Mirzaali Mazandarani, M. (author), Angeloni, L. (author), Fan, D. (author), Minneboo, M.B. (author), Ghatkesar, M.K. (author), Staufer, U. (author), Fratila-Apachitei, E.L. (author), Zadpoor, A.A. (author)
Fabricating large areas of geometrically complex and precisely controlled topographies is required for the studies of cell behavior on patterned surfaces. Direct laser writing (DLW) is an advanced 3D-fabrication technique, which facilitates the manufacturing of structures within various scales (from a few hundred nanometers to millimeters)....
journal article 2020
document
Modaresifar, K. (author), Kunkels, Lorenzo (author), Ganjian, M. (author), Tümer, N. (author), Hagen, C.W. (author), Otten, L.G. (author), Hagedoorn, P.L. (author), Angeloni, L. (author), Ghatkesar, M.K. (author), Fratila-Apachitei, E.L. (author), Zadpoor, A.A. (author)
Recent progress in nano-/micro-fabrication techniques has paved the way for the emergence of synthetic bactericidal patterned surfaces that are capable of killing the bacteria via mechanical mechanisms. Different design parameters are known to affect the bactericidal activity of nanopatterns. Evaluating the effects of each parameter, isolated...
journal article 2020
document
Gunda, Arun (author), Özkayar, G. (author), Tichem, M. (author), Ghatkesar, M.K. (author)
Microvalves are important flow-control devices in many standalone and integrated microfluidic applications. Polydimethylsiloxane (PDMS)-based pneumatic microvalves are commonly used but they generally require large peripheral connections that decrease portability. There are many alternatives found in the literature that use Si-based microvalves,...
journal article 2020
document
Kramer, R.C.L.N. (author), Verlinden, E.J. (author), Angeloni, L. (author), Van Den Heuvel, Anita (author), Fratila-Apachitei, E.L. (author), Van Der Maarel, Silvère M. (author), Ghatkesar, M.K. (author)
Microfluidic atomic force microscopy (AFM) cantilever probes have all the functionalities of a standard AFM cantilever along with fluid pipetting. They have a channel inside the cantilever and an aperture at the tip. Such probes are useful for precise fluid manipulation at a desired location, for example near or inside cells. They are...
journal article 2020
document
Belardinelli, P. (author), D Souza, Savio (author), Verlinden, E.J. (author), Wei, J. (author), Staufer, U. (author), Alijani, F. (author), Ghatkesar, M.K. (author)
Suspended microfluidic resonators enable detection of fluid density and viscosity with high sensitivity. Here, a two-legged suspended microchannel resonator that probes pico-litres of liquid is presented. The higher resonant modes (flexural and torsional) were explored for increased sensitivity and resolution. Unlike other reported microchannel...
journal article 2020
document
Manzaneque Garcia, T. (author), Steeneken, P.G. (author), Alijani, F. (author), Ghatkesar, M.K. (author)
Resonant sensors determine a sensed parameter by measuring the resonance frequency of a resonator. For fast continuous sensing, it is desirable to operate resonant sensors in a closed-loop configuration, where a feedback loop ensures that the resonator is always actuated near its resonance frequency, so that the precision is maximized even in...
journal article 2020
document
Verlinden, E.J. (author), Madadelahi, M. (author), Sarajlic, E. (author), Shamloo, A. (author), Engel, A.H. (author), Staufer, U. (author), Ghatkesar, M.K. (author)
We introduce a two-channel microfluidic atomic force microscopy (AFM) cantilever that combines the nanomechanical sensing functionality of an AFM cantilever with the ability to manipulate fluids of picolitres or smaller volumes through nanoscale apertures near the cantilever tip. Each channel is connected to a separate fluid reservoir, which...
journal article 2020
document
Ganjian, M. (author), Angeloni, L. (author), Mirzaali, Mohammad J. (author), Modaresifar, K. (author), Hagen, C.W. (author), Ghatkesar, M.K. (author), Hagedoorn, P.L. (author), Fratila-Apachitei, E.L. (author), Zadpoor, A.A. (author)
One of the methods to create sub-10 nm resolution metal-composed 3D nanopillars is electron beam-induced deposition (EBID). Surface nanotopographies (e.g., nanopillars) could play an important role in the design and fabrication of implantable medical devices by preventing the infections that are caused by the bacterial colonization of the...
journal article 2020
document
Gunda, Arun (author), Özkayar, G. (author), Tichem, M. (author), Ghatkesar, M.K. (author)
Microvalves are important flow-control components in many standalone and integrated microfluidic circuits. Although there is a large body of work regarding<br/>microvalves, there is still a need for an easyto-fabricate, small-footprint, low-power device that can control both liquids and gases at moderate pressures. This paper details the...
conference paper 2019
Searched for: author%3A%22Ghatkesar%2C+M.K.%22
(1 - 20 of 36)

Pages

List view
Grid view