Piezoelectric materials and systems for tissue engineering and implantable energy harvesting devices for biomedical applications

V Jarkov, SJ Allan, C Bowen… - International Materials …, 2022 - Taylor & Francis
Recently, the development of smart materials and the study of their properties has provided
an innovative approach to the field of tissue engineering. Piezoelectrics, which are able to …

A review of current neuromorphic approaches for vision, auditory, and olfactory sensors

A Vanarse, A Osseiran, A Rassau - Frontiers in neuroscience, 2016 - frontiersin.org
Conventional vision, auditory, and olfactory sensors generate large volumes of redundant
data and as a result tend to consume excessive power. To address these shortcomings …

Digital selection and analogue amplification coexist in a cortex-inspired silicon circuit

RHR Hahnloser, R Sarpeshkar, MA Mahowald… - nature, 2000 - nature.com
Digital circuits such as the flip-flop use feedback to achieve multi-stability and nonlinearity to
restore signals to logical levels, for example 0 and 1. Analogue feedback circuits are …

Artificial neural networks in hardware: A survey of two decades of progress

J Misra, I Saha - Neurocomputing, 2010 - Elsevier
This article presents a comprehensive overview of the hardware realizations of artificial
neural network (ANN) models, known as hardware neural networks (HNN), appearing in …

Finding a roadmap to achieve large neuromorphic hardware systems

J Hasler, B Marr - Frontiers in neuroscience, 2013 - frontiersin.org
Neuromorphic systems are gaining increasing importance in an era where CMOS digital
computing techniques are reaching physical limits. These silicon systems mimic extremely …

Analog versus digital: extrapolating from electronics to neurobiology

R Sarpeshkar - Neural computation, 1998 - ieeexplore.ieee.org
We review the pros and cons of analog and digital computation. We propose that
computation that is most efficient in its use of resources is neither analog computation nor …

An ultra-low-power pulse oximeter implemented with an energy-efficient transimpedance amplifier

M Tavakoli, L Turicchia… - IEEE transactions on …, 2009 - ieeexplore.ieee.org
Pulse oximeters are ubiquitous in modern medicine to noninvasively measure the
percentage of oxygenated hemoglobin in a patient's blood by comparing the transmission …

An ultra-low-power programmable analog bionic ear processor

R Sarpeshkar, C Salthouse, JJ Sit… - IEEE Transactions …, 2005 - ieeexplore.ieee.org
We report a programmable analog bionic ear (cochlear implant) processor in a 1.5-/spl
mu/m BiCMOS technology with a power consumption of 211/spl mu/W and 77-dB dynamic …

Piezoelectric materials mimic the function of the cochlear sensory epithelium

T Inaoka, H Shintaku, T Nakagawa… - Proceedings of the …, 2011 - National Acad Sciences
Cochlear hair cells convert sound vibration into electrical potential, and loss of these cells
diminishes auditory function. In response to mechanical stimuli, piezoelectric materials …

Asynchronous Binaural Spatial Audition Sensor With 2644 Channel Output

SC Liu, A van Schaik, BA Minch… - IEEE transactions on …, 2013 - ieeexplore.ieee.org
This paper proposes an integrated event-based binaural silicon cochlea system aimed at
efficient spatial audition and auditory scene analysis. The cochlea chip has a matched pair …