Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Srikant Vaithilingam"'
Autor:
Hyo-Seon Yoon, Ronald Dean Watkins, Kwan Kyu Park, Kamyar Firouzi, Amin Nikoozadeh, Huseyin Kagan Oguz, Srikant Vaithilingam, Jung Woo Choe, Mario Kupnik, Kim Butts Pauly, Pierre Khuri-Yakub
Publikováno v:
AIP Conference Proceedings.
We developed a fully-populated 2-D capacitive micromachined ultrasonic transducer (CMUT) array for high intensity focused ultrasound (HIFU) treatment. The 2-D CMUT array, which consists of 20 × 20 square CMUT elements with an element-to-element pitc
Publikováno v:
Journal of Ultrasound in Medicine. 32:1245-1250
Photoacoustic imaging is a promising new technology that combines tissue optical characteristics with ultrasound transmission and can potentially visualize tumor depth in bladder cancer. We imaged simulated tumors in 5 fresh porcine bladders with con
Autor:
Te-Jen Ma, Srikant Vaithilingam, Sri Rajasekhar Kothapalli, Butrus T. Khuri-Yakub, Omer Oralkan, Sanjiv S. Gambhir
Publikováno v:
IEEE Transactions on Biomedical Engineering. 59:1199-1204
In this paper, we demonstrate 3-D photoacoustic imaging (PAI) of light absorbing objects embedded as deep as 5 cm inside strong optically scattering phantoms using a miniaturized (4 mm × 4 mm × 500 µm), 2-D capacitive micromachined ultrasonic tran
Publikováno v:
Journal of The Electrochemical Society. 159:H79-H84
The topography of a thermally grown oxide film at the right-angled convex corner of silicon is investigated. Numerical simulations and atomic force microscopy are used to examine the top oxide surface as well as the oxide-silicon interface in the vic
Autor:
Sanjiv S. Gambhir, Jelena Levi, Adam de la Zerda, Butrus T. Khuri-Yakub, Zhuang Liu, Hongjie Dai, Cristina Zavaleta, Sunil Bodapati, Omer Oralkan, Zhen Cheng, Xiaoyuan Chen, Srikant Vaithilingam, Shay Keren, Te-Jen Ma, Bryan Ronain Smith
Publikováno v:
Nature Nanotechnology. 3:557-562
Photoacoustic imaging of living subjects offers higher spatial resolution and allows deeper tissues to be imaged compared with most optical imaging techniques1,2,3,4,5,6,7. As many diseases do not exhibit a natural photoacoustic contrast, especially
Publikováno v:
2011 IEEE International Ultrasonics Symposium.
We present the design, fabrication and characterization of a multi-purpose capacitive micromachined ultrasonic transducer (CMUT) for air coupled ultrasound (∼300−500 kHz), with a focus on improved bandwidth. The focus of this work is to investiga
Publikováno v:
2011 IEEE International Ultrasonics Symposium.
—We present the successful fabrication and finite element analysis (FEA) validation of capacitive micromachined ultrasonic transducers (CMUTs) targeting applications under a wide and varying pressure range (~ 1 – 20 atm), such as ultrasonic flow
Publikováno v:
2011 IEEE International Ultrasonics Symposium.
– We present the design and fabrication of 1D capacitive micromachined ultrasonic transducer (CMUT) arrays optimized for imaging using multiple modalities. A new variation of the fabrication process based on a thick buried oxide layer is used to bu
Publikováno v:
2011 16th International Solid-State Sensors, Actuators and Microsystems Conference.
We present a 2-D MEMS scanner for 3.2mm-diameter dual-axis confocal microendoscopes, which is fabricated by only front-side processing. Frontside-only processing greatly simplifies the process and reduces the cost of the fabrication. Furthermore, by
Autor:
Hyo-Seon Yoon, Min-Chieh Ho, Nikhil Apte, Paul Cristman, Srikant Vaithilingam, Mario Kupnik, Kim Butts-Pauly, Butrus T. Khuri-Yakub, Yoichiro Matsumoto, Lawrence A. Crum, Gail Reinette ter Haar
Publikováno v:
AIP Conference Proceedings.
For decades, high intensity focused ultrasound (HIFU) transducers have been developed for minimally invasive and non‐invasive therapies. Capacitive micromachined ultrasonic transducer (CMUT) technology is a promising candidate for HIFU therapy as i