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We investigate multi-objective adaptive beamformer design strategies for non-invasive microwave hyperthermia. Our focus is to address the challenges of maintaining focused power deposition in desired locations while reducing unwanted…

Signal Processing · Electrical Eng. & Systems 2026-05-04 Ahona Bhattacharyya , Tessa Haldes , Jeffrey A. Nanzer , Susan C. Hagness

Manipulating fluids by light at the nanoscale has been a long-sought-after goal for lab-on-a-chip applications. Plasmonic heating has been demonstrated to control microfluidic dynamics due to the enhanced and confined light absorption from…

Optics · Physics 2023-08-01 Sen Yang , Justus C. Ndukaife

Cooling systems based on the caloric effects of ferroic materials show high potential for various cooling and heat-pumping applications due to their potentially high efficiencies and the lack of any environmentally hazardous refrigerants.…

Applied Physics · Physics 2021-08-30 Jan Kalizan , Jaka Tušek

Microwave energy has been demonstrated to be beneficial for reducing the energetic cost of several steps of the mining process. Significant literature has been developed about this topic but few studies are focused on understanding the…

Materials Science · Physics 2015-10-30 Tamara Monti , Alexander Tselev , Ofonime Udoudo , Ilia N. Ivanov , Samuel W. Kingman

This study investigates the hydrodynamics of droplet formation in a T-shaped cylindrical microfluidic device using micro-PIV experiments and CFD simulations. Devices of 150 micro-m internal diameter were fabricated from PDMS via a…

Fluid Dynamics · Physics 2026-03-04 Pratibha Dogra , Ram Prakash Bharti , Gaurav Sharma

In this work we present the dielectric behavior of water with a novel flexible model that improved all three sites water models Different concentrations of the ionic liquid 1- butyl-3-methylimidazolium [bmim]…

Droplet-based microfluidic systems are a promising platform forlab-on-a-chip (LoC) applications. These systems can also be used toenhance LoC applications with integrated droplet control information or for data transmission scenarios in the…

Emerging Technologies · Computer Science 2021-01-12 Max Bartunik , Marco Fleischer , Werner Haselmayr , Jens Kirchner

We have developed an original setup using microfluidic tools allowing one to produce continuously monodisperse microreactors ($\approx 100$ nL), and to control their temperatures as they flow in the microdevice. With a specific…

Soft Condensed Matter · Physics 2009-11-11 Philippe Laval , Jean-Baptiste Salmon , Mathieu Joanicot

Droplets are natural candidates for use as microfluidic reactors, if active control of their formation and transport can be achieved. We show here that localized heating from a laser can block the motion of a water-oil interface, acting as…

Fluid Dynamics · Physics 2015-06-26 C. N. Baroud , J. -P. Delville , F. Gallaire , R. Wunenburger

Microwave heating of methane hydrate is investigated with electrostatic molecular dynamics simulations by the SPC/E water model. The structure I of methane hydrate is constructed. When the methane hydrate with a density of 0.91…

Chemical Physics · Physics 2023-11-27 Motohiko Tanaka , Motoyasu Sato , Shin Nakatani

Gas behavior in systems at microscale has been receiving significant attention from researchers in the last two decades [1-4]. Today, there is an enhanced emphasis on developing new experimental techniques to capture the local temperature…

Instrumentation and Detectors · Physics 2019-08-05 Varun Yeachana , Vikash Kumar , Lucien Baldas , Marcos Rojas-Cárdenas , Christine Barrot , Ryan Enright , Stéphane Colin

Although 3D IC technology can provide very high integration density, they suffer from having hotspots that may reach thousands of degrees. To manage this heat, it is necessary to study the dynamics of cooling and thermal behavior of the…

Applied Physics · Physics 2019-11-04 Sakib Islam , Ibrahim Abdel-Motaleb

A droplet position sensing scheme for monitoring multiple droplets has been proposed, which gives a direct voltage output linearly proportional to droplet position in electrowetting-on-dielectric (EWOD) based devices. An extra dielectric…

Instrumentation and Detectors · Physics 2014-03-10 Shiraz Sohail , Karabi Biswas

Understanding heating and cooling mechanisms in mesoscopic superconductor-semiconductor hybrid devices is crucial for their application in quantum technologies. Owing to the poor thermal conductivity of typical devices, heating effects can…

Mesoscale and Nanoscale Physics · Physics 2024-06-12 Angel Ibabe , Gorm O. Steffensen , Ignacio Casal , Mario Gomez , Thomas Kanne , Jesper Nygard , Alfredo Levy Yeyati , Eduardo J. H. Lee

We present a superconducting microresonator thermometer based on two-level systems (TLS) that is drop-in compatible with cryogenic microwave systems. The operational temperature range is 50-1000~mK (which may be extended to 5~mK), and the…

Instrumentation and Detectors · Physics 2020-11-16 J. Wheeler , M. R. Vissers , M. Malnou , J. Hubmayr , J. N. Ullom , J. Gao

Hyperthermia has been in use for many years; as a potential alternative modality for cancer treatment. In this paper, an experimental investigation of microwave assisted thermal heating (MWATH) of tissue phantom using a domestic microwave…

Medical Physics · Physics 2020-06-25 Dhiraj Kumar , Purbarun Dhar , Anup Paul

The fast evaporative cooling of micrometer-sized water droplets in vacuum offers the appealing possibility to investigate supercooled water - below the melting point but still a liquid - at temperatures far beyond the state-of-the-art.…

Understanding the microscopic thermal effects of the hydrogel is important for its application in diverse fields, including thermal-related studies in tissue engineering and thermal management for flexible electronic devices. In recent…

A novel method to pump fluid in lab on chip devices with velocities up to tens of micrometer per second is introduced. A focused laser beam locally heats up an electrolyte. A net charge tends to accumulate in the heat-absorbing area, due to…

Soft Condensed Matter · Physics 2014-05-08 Reza Kiani Iranpour , Seyyed Nader Rasuli

In microfluidic technologies, direct patterning of liquid without resorting to micromachined solid structures has various advantages including reduction of the frictional dissipation and the fabrication cost. This fluid dynamics video…

Fluid Dynamics · Physics 2008-10-08 Minhee Lee , Ho-Young Kim