Search Results - "Roman, Cosmin"

Rheology of rounded mammalian cells over continuous high-frequencies by Fläschner, Gotthold, Roman, Cosmin I., Strohmeyer, Nico, Martinez-Martin, David, Müller, Daniel J.

“…Understanding the viscoelastic properties of living cells and their relation to cell state and morphology remains challenging. Low-frequency mechanical…”
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Understanding and improving carbon nanotube-electrode contact in bottom-contacted nanotube gas sensors by Jung, Seoho, Hauert, Roland, Haluska, Miroslav, Roman, Cosmin, Hierold, Christofer

“…•Carbon nanotube-metal contact is improved by electrode surface etching with Ar-ion.•Self-heating operation of suspended carbon nanotube gas sensors is…”
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Experimental In Vitro Microfluidic Calorimetric Chip Data towards the Early Detection of Infection on Implant Surfaces by Vehusheia, Signe L K, Roman, Cosmin I, Arnoldini, Markus, Hierold, Christofer

“…Heat flux measurement shows potential for the early detection of infectious growth. Our research is motivated by the possibility of using heat flux sensors for…”
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Ultra-low power operation of self-heated, suspended carbon nanotube gas sensors by Chikkadi, Kiran, Muoth, Matthias, Maiwald, Verena, Roman, Cosmin, Hierold, Christofer

“…We present a suspended carbon nanotube gas sensor that senses NO2 at ambient temperature and recovers from gas exposure at an extremely low power of 2.9 μW by…”
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Finite element-based feasibility study on utilizing heat flux sensors for early detection of vascular graft infections by Vehusheia, Signe Lin Kuei, Roman, Cosmin, Sonderegger, Rafael, Cesarovic, Nikola, Hierold, Christofer

“…Aortic vascular graft infections have high morbidity and mortality rate, however, patients often do not show symptoms. Continuous implant surface monitoring…”
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Fast Nitrogen Dioxide Sensing with Ultralow‐Power Nanotube Gas Sensors by Jung, Seoho, Roman, Cosmin, Hierold, Christofer

“…The study reports fast, ultralow‐power operation of carbon nanotube‐based nitrogen dioxide (NO2) sensors enabled by nanotube self‐heating and transient…”
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The response of single-walled carbon nanotubes to NO2 and the search for a long-living adsorbed species by Kroes, Jaap M. H., Pietrucci, Fabio, Chikkadi, Kiran, Roman, Cosmin, Hierold, Christofer, Andreoni, Wanda

“…Contact-passivated sensor devices allow one to measure the response of individual ultraclean single-walled carbon nanotubes to 1 ppm NO2, and show that the…”
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An in vitro demonstration of a passive, acoustic metamaterial as a temperature sensor with mK resolution for implantable applications by Maini, Lucrezia, Genovés, Vicente, Furrer, Roman, Cesarovic, Nikola, Hierold, Christofer, Roman, Cosmin

“…Wireless medical sensors typically utilize electromagnetic coupling or ultrasound for energy transfer and sensor interrogation. Energy transfer and management…”
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Rickart Modules by Lee, Gangyong, Tariq Rizvi, S., Roman, Cosmin S.

“…The concept of right Rickart rings (or right p.p. rings) has been extensively studied in the literature. In this article, we study the notion of Rickart…”
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High-speed identification of suspended carbon nanotubes using Raman spectroscopy and deep learning by Zhang, Jian, Perrin, Mickael L., Barba, Luis, Overbeck, Jan, Jung, Seoho, Grassy, Brock, Agal, Aryan, Muff, Rico, Brönnimann, Rolf, Haluska, Miroslav, Roman, Cosmin, Hierold, Christofer, Jaggi, Martin, Calame, Michel

“…The identification of nanomaterials with the properties required for energy-efficient electronic systems is usually a tedious human task. A workflow to rapidly…”
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Signal-to-Noise Ratio in Carbon Nanotube Electromechanical Piezoresistive Sensors by Helbling, Thomas, Roman, Cosmin, Hierold, Christofer

“…The signal-to-noise ratio (SNR) of piezoresistive transducers based on carbon nanotube field effect transistors (CNFETs) is an essential yet unexplored…”
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Enabling direct microcalorimetric measurement of metabolic activity and exothermic reactions onto microfluidic platforms via heat flux sensor integration by Vehusheia, Signe L. K., Roman, Cosmin, Braissant, Olivier, Arnoldini, Markus, Hierold, Christofer

“…All biological processes use or produce heat. Traditional microcalorimeters have been utilized to study the metabolic heat output of living organisms and heat…”
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Correction: Enabling direct microcalorimetric measurement of metabolic activity and exothermic reactions onto microfluidic platforms via heat flux sensor integration by Vehusheia, Signe L. K., Roman, Cosmin, Braissant, Olivier, Arnoldini, Markus, Hierold, Christofer

“…[This corrects the article DOI: 10.1038/s41378-023-00525-z.]…”
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Mechanical stress relaxation in adhesively clamped carbon nanotube resonators by Kumar, Lalit, Jenni, Laura V., Haluska, Miroslav, Roman, Cosmin, Hierold, Christofer

“…We report a detailed experimental investigation of the adhesive clamping instability in CNT nanoresonators fabricated on silicon wafers with palladium…”
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Modules Whose Endomorphism Rings are Division Rings by Lee, Gangyong, Roman, Cosmin S., Zhang, Xiaoxiang

“…The well-known Schur's Lemma states that the endomorphism ring of a simple module is a division ring. But the converse is not true in general. In this paper we…”
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Advances in NO2 sensing with individual single-walled carbon nanotube transistors by Chikkadi, Kiran, Muoth, Matthias, Roman, Cosmin, Haluska, Miroslav, Hierold, Christofer

“…The charge carrier transport in carbon nanotubes is highly sensitive to certain molecules attached to their surface. This property has generated interest for…”
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Reduction of gate hysteresis above ambient temperature via ambipolar pulsed gate sweeps in carbon nanotube field effect transistors for sensor applications by Mattmann, Moritz, Bechstein, Daniel, Roman, Cosmin, Chikkadi, Kiran, Hierold, Christofer

“…We investigate the hysteresis behavior in carbon nanotube (CNT) field effect transistors (CNFETs) upon pulsed gate voltages (Vg) above ambient temperature…”
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Sub-ppm NO2 detection by Al2O3 contact passivated carbon nanotube field effect transistors by Mattmann, Moritz, Helbling, Thomas, Durrer, Lukas, Roman, Cosmin, Hierold, Christofer, Pohle, Roland, Fleischer, Maximilian

“…We investigate carbon nanotube field effect transistors (CNFETs) with aluminum oxide (Al2O3) passivated contacts for NO2 detection. For the CNFETs, consisting…”
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Building an interdisciplinary program of cardiovascular research at the Swiss Federal Institute of Technology– the ETHeart story by Kourouklis, Andreas P., Wu, Xi, Geyer, Robin C., Exarchos, Vasileios, Nazari, Timo, Kaemmel, Julius, Magkoutas, Konstantinos, Daners, Marianne Schmid, Weisskopf, Miriam, Maini, Lucrezia, Roman, Cosmin, Iske, Jasper, Pappas, Georgios A., Chen, Mary Jialu, Smid, Caroline, Unbehaun, Axel, Meyer, Alexander, Emmert, Maximilian, Ferrari, Aldo, Schuett, Corina, Poulikakos, Dimos, Mazza, Edoardo, Falk, Volkmar, Cesarovic, Nikola

“…In this backstory, researchers from Swiss Federal Institute of Technology (ETH Zurich) who initiated an interdisciplinary program to generate innovative…”
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Tactile Sensing With Scalable Capacitive Sensor Arrays on Flexible Substrates by Weichart, Johannes, Roman, Cosmin, Hierold, Christofer

“…The development of advanced, human like tactile sensing capabilities is one of the key challenges for next generation robots or prosthetics. Tactile sensors…”
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