When a pacemaker's battery gets low, the whole implant typically has to be surgically replaced. Scientists are therefore developing a noninvasive battery recharging system, which utilizes externally ...

Ultrasound neuromodulation, as a technique for controlling neural activity, has garnered increasing attention in recent years. However, when transmitted externally, ultrasound encounters significant ...

A digital ultrasonic generator from Herrmann Ultrasonics Inc. enables a user to weld, bond and seal larger thermoplastic parts than a previous digital-signal-processor series allowed. Over two years, ...

Fig. 1 | An implantable fiber-optic photoacoustic neurostimulator. (a) Schematic illustration of the FPE. (b) Broadband ultrasonic excitation of FPE, b1: time-domain and frequency-domain ultrasound ...

A new way of creating specially shaped pulses of ultrasound using light and a 3D printer has been unveiled by Michael Brown and colleagues at University College London. The pulses, which are creating ...

Formalin fixation and paraffin embedding are conventional tissue preservation and processing methods used for histologic diagnosis in over 90% of cases. However, formalin fixation has three ...

THE most familiar medical use of ultrasound is observing unborn children. Such high-frequency sound waves can, however, also be employed therapeutically. Suitably focused, they generate hotspots that ...

Fiber-generated ultrasound technologies have been widely used in medical and industrial areas. In spinal fusion surgeries, over 20% of the patients suffer from screw misplacement. The orthopedic spine ...

Ultrasound is an established way to image biological tissues, traditionally using arrays of electronic transducers to both generate and receive the ultrasonic signals. An all-optical variant of the ...