- document
-
van Loon, Rafael (author)The availability of laparoscopy in low-income settings has been limited based on the requirements that have to be met to perform this type of abdominal surgery. At the same time, these regions and countries could stand to gain the most from it based on quicker recovery times and a lower chance of infections. Attempts have been made to solve this...master thesis 2024
- document
-
Moisello, Elisabetta (author), Novaresi, Lara (author), Eshani Sarkar, E. (author), Malcovati, Piero (author), Lopes Marta da Costa, T.M. (author), Bonizzoni, Edoardo (author)Piezoelectric Micromachined Ultrasonic Transducers (PMUT) and Capacitive Micromachined Ultrasonic Transducers (CMUT) have seen great developments in recent years, both in terms of performance and scope of applications within the biomedical ultrasound domain. This paper presents a review of the state-of-the-art of PMUT and CMUT technologies,...review 2024
- document
-
Yarali, E. (author), Mirzaali, Mohammad J. (author), Ghalayaniesfahani, A. (author), Accardo, A. (author), Diaz Payno, P.J. (author), Zadpoor, A.A. (author)4D (bio-)printing endows 3D printed (bio-)materials with multiple functionalities and dynamic properties. 4D printed materials have been recently used in biomedical engineering for the design and fabrication of biomedical devices, such as stents, occluders, microneedles, smart 3D-cell engineered microenvironments, drug delivery systems, wound...review 2024
- document
-
de Gruijl, David (author)Much like wearable devices today, ingestible devices have emerged as a promising platform for continuous health monitoring, and potentially even intervention. Recent research has demonstrated the feasibility of ingestible devices with a retention mechanism, enabling them to remain in the stomach for weeks. Equipping these devices with sensors...master thesis 2023
- document
-
Ornaghi, Heitor Luiz (author), Monticeli, F.M. (author), Agnol, Lucas Dall (author)n the past decades, there has been a significant increase in the use of polymers for biomedical applications. The global medical polymer market size was valued at USD 19.92 billion in 2022 and is expected to grow at a CAGR of 8.0% from 2023 to 2030 despite some limitations, such as cost (financial limitation), strength compared to metal plates...journal article 2023
- document
-
Zangabad, Reza Pakdaman (author), Li, H. (author), Kouijzer, Joop J.P. (author), Langeveld, Simone A.G. (author), Beekers, Ines (author), Verweij, M.A. (author), de Jong, N. (author), Kooiman, Klazina (author)Understanding and controlling the ultrasound contrast agent (UCA)'s response to an applied ultrasound pressure field are crucial when investigating ultrasound imaging sequences and therapeutic applications. The magnitude and frequency of the applied ultrasonic pressure waves affect the oscillatory response of the UCA. Therefore, it is...journal article 2023
- document
-
Liu, Shuoyan (author), Xue, Bing (author), Yan, Wenyuan (author), Rwei, A.Y. (author), Wu, Changsheng (author)With a growing focus on properties of softness, miniaturization, and intelligence, extensive research has been focusing on constructing wearable electronic devices facilitating comfort, wearable health monitoring and diagnosis. Among recent progress in the development of wearable bioelectronics, wearable near-infrared spectroscopy (NIRS)...journal article 2023
- document
-
Kuttippurath, Vivek (author), Slijkhuis, Nuria (author), Liu, Shengnan (author), van Soest, G. (author)Significance: Spectroscopic analysis of optical coherence tomography (OCT) data can yield added information about the sample's chemical composition, along with high-resolution images. Typical commercial OCT systems operate at wavelengths that may not be optimal for identifying lipid-containing samples based on absorption features. Aim: The...journal article 2023
- document
-
Lu, T. (author), Du, S. (author)In this letter, a 6.78-MHz single-stage regulating voltage-doubling rectifier is presented for biomedical wireless power transfer (WPT) applications. Derived from a full-wave voltage doubler, a theoretical voltage conversion ratio (VCR) of 2 can be achieved, which benefits the end-to-end voltage gain of a biomedical WPT system with varying...journal article 2023
- document
-
Savoia, Alessandro S. (author), Giustiniano, Domenico (author), Prelini, Carlo (author), Saccher, M. (author), Rashidi, A. (author), Leotti, Alberto (author), Giagka, Vasiliki (author), Ferrera, Marco (author)Micromachined Ultrasonic Transducers (MUTs) are being explored as power converters in wirelessly powered biomedical implants. This paper investigates the role of mechanical support properties in piezoelectric MUTs (PMUTs) on their power conversion efficiency. For this purpose, a finite element model (FEM) of a PMUT array was developed and...conference paper 2023
- document
-
Liu, Shurui (author), Lu, T. (author), Tang, Z. (author), Chen, Zhiyuan (author), Jiang, Junmin (author), Zhao, Bo (author), Du, S. (author)In this article, we propose a reconfigurable regulating rectifier with a wide operational range for wireless power transfer. The proposed three-mode rectifier achieves a broad range voltage regulation without global loop control to minimize the chip area occupation. Compared with previous work, more working modes and greater voltage gain...journal article 2023
- document
-
Rincic, Iva (author), Muzur, Amir (author), Richie, C.S. (author)Background: In 1926, Fritz Jahr described bio-ethics (German: bio-ethik) as “the assumption of moral obligations not only towards humans, but towards all forms of life.” Jahr summarized his philosophy by declaring, “Respect every living being on principle as an end in itself and treat it, if possible, as such!.” Bioethics was thus originally...journal article 2023
- document
- den Ouden, Bram (author) master thesis 2022
- document
-
Liu, Shurui (author)This article presents a novel wide operational range reconfigurable regulating rectifier for wireless power transfer. The proposed 1X/2X/3X rectifier achieves wide range voltage regulation without global loop control to minimize the area occupation. Compared with previous work, more working modes and greater magnification allow the proposed...master thesis 2022
- document
-
Vlachogiannakis, G. (author)Abundant research reported in the literature has indicated that broadband dielectric spectroscopy (BDS), i.e., the measurement of material permittivity versus frequency, can serve a broad range of applications, including, but not limited to, biomedical, food, automotive, and agricultural industries. Adopting this technique in real-life...doctoral thesis 2022
- document
-
Bastan, Mohaddeseh (author), Shankar, N. (author), Surdeanu, Mihai (author), Balasubramanian, Niranjan (author)Can language models read biomedical texts and explain the biomedical mechanisms discussed? In this work we introduce a biomedical mechanism summarization task. Biomedical studies often investigate the mechanisms behind how one entity (e.g., a protein or a chemical) affects another in a biological context. The abstracts of these publications...conference paper 2022
- document
-
Yue, X. (author), Chen, Zhelun (author), Zou, Yiwei (author), Du, S. (author)Ultrasonic wireless power transfer (WPT) has been proved to be a promising approach to power biomedical implants. To extract the energy generated from the transducer, a rectifier is typically required. Previous inductor-based rectifiers (SSHI and SECE) require a large off-chip inductor to achieve good performance, which is not desired for...conference paper 2022
- document
-
Massaad Mouawad, J.M. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), Noothout, E.C. (author), de Jong, N. (author), Pertijs, M.A.P. (author), Verweij, M.D. (author)Common clamp-on ultrasonic flow meters consist of two single-element transducers placed on the pipe wall. Flow speed is measured noninvasively, i.e., without interrupting the flow and without perforating the pipe wall, which also minimizes safety risks and avoids pressure drops inside the pipe. However, before metering, the transducers have...journal article 2022
- document
-
de Jong, D.B. (author), Paredes-Vallés, Federico (author), de Croon, G.C.H.E. (author)End-to-end trained convolutional neural networks have led to a breakthrough in optical flow estimation. The most recent advances focus on improving the optical flow estimation by improving the architecture and setting a new benchmark on the publicly available MPI-Sintel dataset. Instead, in this article, we investigate how deep neural...journal article 2022
- document
-
Lu, T. (author), Du, S. (author)A 6.78 MHz dual-output reconfigurable rectifier for wireless power transfer is presented. The proposed rectifier integrates AC-DC rectification and DC-DC regulation into a single-stage topology, alleviating received power loss and reducing system volume cost. By adding a switch matrix after rectifying bridge, a dual output can be realized and...conference paper 2022