Overview of bee pollination and its economic value for crop production

SAM Khalifa, EH Elshafiey, AA Shetaia, AAA El-Wahed… - Insects, 2021 - mdpi.com
Simple Summary There is a rising demand for food security in the face of threats posed by a
growing human population. Bees as an insect play a crucial role in crop pollination …

The Microbead: A 0.009 mm3 Implantable Wireless Neural Stimulator

A Khalifa, Y Liu, Y Karimi, Q Wang… - IEEE transactions on …, 2019 - ieeexplore.ieee.org
Wirelessly powered implants are increasingly being developed to interface with neurons in
the brain. They often rely on microelectrode arrays, which are limited by their ability to cover …

Distributed neural interfaces: challenges and trends in scaling implantable technology

KM Szostak, P Feng, F Mazza… - Handbook of …, 2021 - Springer
Current implantable neural interfaces, both clinically available solutions and research tools,
rely on a limited number of implanted devices (from one to few units). This factor, aside from …

Duty-cycled wireless power transmission for millimeter-sized biomedical implants

MA Akram, KW Yang, S Ha - Electronics, 2020 - mdpi.com
Wireless power transmission (WPT) using an inductively coupled link is one of the most
popular approaches to deliver power wirelessly to biomedical implants. As the …

Robust wireless power transfer to multiple mm-scale freely-positioned neural implants

P Feng, TG Constandinou - 2018 IEEE Biomedical Circuits and …, 2018 - ieeexplore.ieee.org
This paper presents a novel wireless power transfer (WPT) scheme that consists of a two-tier
hierarchy of near-field inductively coupled links. Key aims are to provide efficient power …

Magnetoelectric versus inductive power delivery for sub-mm receivers

A Khalifa, M Nasrollahpour, N Sun… - 2021 IEEE Wireless …, 2021 - ieeexplore.ieee.org
Most of the next-generation implantable medical devices that are targeting sub-mm scale
form factors are entirely powered wirelessly. The most commonly used form of wireless …

Exploiting self-capacitances for wireless power transfer

Y Alazzawi, K Aono, EL Scheller… - IEEE transactions on …, 2019 - ieeexplore.ieee.org
Conventional approaches for wireless power transfer rely on the mutual coupling (near-field
or far-field) between the transmitter and receiver transducers. As a result, the power-transfer …

A simple method for implanting free-floating microdevices into the nervous tissue

A Khalifa, A Eisape, B Coughlin… - Journal of Neural …, 2021 - iopscience.iop.org
Objective. Free-floating implantable neural interfaces are an emerging powerful paradigm
for mapping and modulation of brain activity. Minuscule wirelessly-powered devices have …

Study of mm-sized coil to coil backscatter based communication link

X Sha, Y Karimi, SR Das, P Djurić… - 2019 IEEE 10th …, 2019 - ieeexplore.ieee.org
Distribution of a large number of mm-sized sensing units in brain is a vision for the next
generation of implantable devices for neural recording. Recorded data from the implants is …

Tracking the Migration of Injectable Microdevices in the Rodent Brain Using a 9.4 T Magnetic Resonance Imaging Scanner

A Khalifa, J Weigand-Whittier, CT Farrar… - Frontiers in …, 2021 - frontiersin.org
Wirelessly powered microdevices are being miniaturized to improve safety, longevity, and
spatial resolution in a wide range of biomedical applications. Some wireless microdevices …