Spatial ultrasound modulation by digitally controlling microbubble arrays

Autor: Zhichao Ma, Kai Melde, Athanasios G. Athanassiadis, Michael Schau, Harald Richter, Tian Qiu, Peer Fischer

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020)

The authors introduce a dynamic spatial ultrasound modulator, based on digitally generated patterns of microbubbles controlled by a complementary metal–oxide–semiconductor (CMOS) chip. They achieve reshaping of incident plane waves into complex a

Externí odkaz: https://doaj.org/article/9b4d597f4f364340b19cb6cba875ec18

Compact holographic sound fields enable rapid one-step assembly of matter in 3D

Autor: Kai Melde, Heiner Kremer, Minghui Shi, Senne Seneca, Christoph Frey, Ilia Platzman, Christian Degel, Daniel Schmitt, Bernhard Schölkopf, Peer Fischer

Publikováno v: Science Advances

Acoustic waves exert forces when they interact with matter. Shaping ultrasound fields precisely in 3D thus allows control over the force landscape and should permit particulates to fall into place to potentially form whole 3D objects in “one shot.�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::181eb841a2c303b06c9382955ed1d788
https://pubmed.ncbi.nlm.nih.gov/36753553/

Acoustic Hologram Enhanced Phased Arrays for Ultrasonic Particle Manipulation

Autor: Anthony J. Croxford, Kai Melde, Bruce W. Drinkwater, Luke Cox, Peer Fischer

Publikováno v: Cox, L, Melde, K, Croxford, A, Fischer, P & Drinkwater, B W 2019, ' Acoustic Hologram Enhanced Phased Arrays for Ultrasonic Particle Manipulation ', Physical Review Applied, vol. 12, no. 6, 064055 . https://doi.org/10.1103/PhysRevApplied.12.064055
Physical Review Applied

The ability to shape ultrasound fields is important for particle manipulation, medical therapeutics, and imaging applications. If the amplitude and/or phase is spatially varied across the wave front, then it is possible to project “acoustic images.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::146797745f5d77efb4f050367269c453
https://hdl.handle.net/1983/5a2960fc-fbe6-4952-ba76-ea39dc827a86

Animating sound using neurally multiplexed holograms

Autor: Lennart Schlieder, Kai Melde, Peer Fischer, Valentin Volchkov, Athanasios G. Athanassiadis

Publikováno v: The Journal of the Acoustical Society of America. 148:2807-2807

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e79ca1e1b5c1da45bfe30db41a7eb5d1
https://doi.org/10.1121/1.5147817

Wireless Acoustic-Surface Actuators for Miniaturized Endoscopes

Autor: Arkadiusz Miernik, Kai Melde, Stefano Palagi, Andrew G. Mark, Fabian Adams, Peer Fischer, Ulrich Wetterauer, Tian Qiu

Publikováno v: ACS Applied Materials & Interfaces
ACS Applied Materials and Interfaces

Endoscopy enables minimally invasive procedures in many medical fields, such as urology. However, current endoscopes are normally cable-driven, which limits their dexterity and makes them hard to miniaturize. Indeed, current urological endoscopes hav

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ce8e2143090e92355d5bb0cd8ab8e8f
https://pubmed.ncbi.nlm.nih.gov/29148713