Results 1 to 10 of about 18,689 (120)

Acoustophoretic trapping of particles by bubbles in microfluidics

Frontiers in Physics, 2023
We present in this paper a simple method to produce strategic acoustic particle capture sites in microfluidic channels in a controlled way. Air bubbles are intermittently injected into a micro-capillary with rectangular cross section during a flow motion
Itziar González, Manuel Candil, Jon Luzuriaga, Jon Luzuriaga   +3 more
doaj   +1 more source

Low-intensity continuous ultrasound to inhibit cancer cell migration

Frontiers in Cell and Developmental Biology, 2023
In recent years, it has been verified that collective cell migration is a fundamental step in tumor spreading and metastatic processes. In this paper, we demonstrate for the first time how low-intensity ultrasound produces long-term inhibition of ...
Itziar González, Jon Luzuriaga, Alba Valdivieso, Manuel Candil, Jesús Frutos, Jesús Frutos, Jaime López, Luis Hernández, Luis Rodríguez-Lorenzo, Virginia Yagüe, Jose Luis Blanco, Alberto Pinto, Julie Earl, Julie Earl   +13 more
doaj   +1 more source

Acoustophoretic particle manipulation in hybrid solid/gel resonators

Frontiers in Physics, 2022
This study presents a proof of concept to demonstrate the ability of ultrasounds to perform acoustophoretic processes in hybrid millifluidic resonators that include channels laterally embedded in extremely soft media with physical properties close to ...
Jon Luzuriaga, Pilar Carreras, Manuel Candil, Despina Bazou, Itziar González   +4 more
doaj   +1 more source

Comparative Study of Photonic Platforms and Devices for On-Chip Sensing

Photonics, 2023
Chemical and biological detection is now an indispensable task in many fields. On-chip refractive index (RI) optical sensing is a good candidate for mass-scale, low-cost sensors with high performance.
Raghi S. El Shamy, Mohamed A. Swillam, Xun Li   +2 more
doaj   +1 more source

Single-Line Multi-Channel Flexible Stress Sensor Arrays

Micromachines, 2023
Flexible stress sensor arrays, comprising multiple flexible stress sensor units, enable accurate quantification and analysis of spatial stress distribution.
Jiayi Yang, Yuanyuan Chen, Shuoyan Liu, Chang Liu, Tian Ma, Zhenmin Luo, Gang Ge   +6 more
doaj   +1 more source

Topology and Design Formulas for Four-Way Filtering Power Divider With Wide Isolation Range

IEEE Access, 2021
In this paper, we present a topology with design equations for the rigorous design of multiway power dividers having a pre-defined filtering response featuring broadband isolation between any pair of output ports.
Boyoung Lee, Gyuwon Lee, Juseop Lee
doaj   +1 more source

A Novel Design Methodology to Realize a Single Byte Chipless RFID Tag by Loading a Square Open-Loop Resonator With Micro-Metallic Cells

IEEE Journal of Microwaves, 2023
In this paper, a unique structural design methodology for chipless radio-frequency identification (RFID) tags in frequency domain is presented. The tag geometry is developed by loading an open-loop resonator with micro-metallic-cells (MMC).
Muhammad Noman, Usman A. Haider, Anas M. Hashmi, Hidayat Ullah, Ali I. Najam, Farooq A. Tahir   +5 more
doaj   +1 more source

Influence of Hydrodynamics and Hematocrit on Ultrasound-Induced Blood Plasmapheresis

Micromachines, 2020
Acoustophoretic blood plasma separation is based on cell enrichment processes driven by acoustic radiation forces. The combined influence of hematocrit and hydrodynamics has not yet been quantified in the literature for these processes acoustically ...
Itziar González, Roque Rubén Andrés, Alberto Pinto, Pilar Carreras   +3 more
doaj   +1 more source

A Virtual Instrument for Measuring the Piezoelectric Coefficients of a Thin Disc in Radial Resonant Mode

Sensors, 2021
In this paper, we describe and present a Virtual Instrument, a tool that allows the determination of the electromechanical, dielectric, and elastic coefficients in polarised ferroelectric ceramic discs (piezoceramics) in the linear range, including all ...
Francisco Javier Jiménez, Amador M. González, Lorena Pardo, Manuel Vázquez-Rodríguez, Pilar Ochoa, Bernardino González   +5 more
doaj   +1 more source

Review of Recent Microwave Planar Resonator-Based Sensors: Techniques of Complex Permittivity Extraction, Applications, Open Challenges and Future Research Directions

Sensors, 2021
Recent developments in the field of microwave planar sensors have led to a renewed interest in industrial, chemical, biological and medical applications that are capable of performing real-time and non-invasive measurement of material properties.
Rammah Ali Alahnomi, Zahriladha Zakaria, Zulkalnain Mohd Yussof, Ayman Abdulhadi Althuwayb, Ammar Alhegazi, Hussein Alsariera, Norhanani Abd Rahman   +6 more
doaj   +1 more source