Zobrazeno 1 - 10
of 357
pro vyhledávání: '"Aaron R. Hawkins"'
Publikováno v:
Micromachines, Vol 15, Iss 6, p 699 (2024)
Particle trapping and enrichment into confined volumes can be useful in particle processing and analysis. This review is an evaluation of the methods used to trap and enrich particles into constrained volumes in microfluidic and nanofluidic systems.
Externí odkaz:
https://doaj.org/article/1f10697ed6964814a1c614a6d9f736c5
Publikováno v:
Photonics, Vol 11, Iss 6, p 502 (2024)
We report the design, fabrication, and characterization of hollow-core anti-resonant reflecting optical waveguides (ARROWs) fabricated in a membrane-covered trench. These structures are built on silicon wafers using standard microfabrication techniqu
Externí odkaz:
https://doaj.org/article/70a767938fe94a39af898bb3ea129331
Autor:
Vahid Ganjalizadeh, Gopikrishnan G. Meena, Matthew A. Stott, Aaron R. Hawkins, Holger Schmidt
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023)
Abstract Multiplexed detection of biomarkers in real-time is crucial for sensitive and accurate diagnosis at the point of use. This scenario poses tremendous challenges for detection and identification of signals of varying shape and quality at the e
Externí odkaz:
https://doaj.org/article/1fc175e31e8d4d6787f48e4c0d22300e
Autor:
Vahid Ganjalizadeh, Gopikrishnan G. Meena, Thomas A. Wall, Matthew A. Stott, Aaron R. Hawkins, Holger Schmidt
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
The authors introduce an accurate, fast and efficient technique to analyze sensory data. They use a continuous wavelet transform concept to look for certain patterns in noisy raw data. The superiority of this approach is demonstrated with fluorescenc
Externí odkaz:
https://doaj.org/article/123f14737933420888a0554f34715b52
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 1, Pp 1-6 (2022)
Integrated optofluidic biosensors can fill the need for sensitive, amplification-free, multiplex single molecule detection which is relevant for containing the spread of infectious diseases such as COVID-19. Here, we demonstrate a rapid sample-to-ans
Externí odkaz:
https://doaj.org/article/2abe3a68bf7e425d9536d852299be2b1
Publikováno v:
Micromachines, Vol 14, Iss 4, p 723 (2023)
Optofluidic biosensors have become an important medical diagnostic tool because they allow for rapid, high-sensitivity testing of small samples compared to standard lab testing. For these devices, the practicality of use in a medical setting depends
Externí odkaz:
https://doaj.org/article/1ca02042390743a98d7d1291820f94ed
Autor:
Zachary J. Walker, Tanner Wells, Ethan Belliston, Seth B. Walker, Carson Zeller, Mohammad Julker Neyen Sampad, S. M. Saiduzzaman, Holger Schmidt, Aaron R. Hawkins
Publikováno v:
Biosensors, Vol 12, Iss 9, p 690 (2022)
We demonstrate an optofluidic device which utilizes the optical scattering and gradient forces for particle trapping in microchannels featuring 300 nm thick membranes. On-chip waveguides are used to direct light into microfluidic trapping channels. R
Externí odkaz:
https://doaj.org/article/a1b05f17a22b48c8ad4bd5b51de56f5e
Autor:
Zachary J. Walker, Tanner Wells, Ethan Belliston, Sage Romney, Seth B. Walker, Mohammad Julker Neyen Sampad, S M Saiduzzaman, Ravipa Losakul, Holger Schmidt, Aaron R. Hawkins
Publikováno v:
Micromachines, Vol 13, Iss 5, p 721 (2022)
We demonstrate a method for fabricating and utilizing an optofluidic particle manipulator on a silicon chip that features a 300 nm thick silicon dioxide membrane as part of a microfluidic channel. The fabrication method is based on etching silicon ch
Externí odkaz:
https://doaj.org/article/df3508ea68784a5388e17e0ce6547d42
Publikováno v:
Biosensors, Vol 11, Iss 7, p 226 (2021)
Optofluidic flow-through biosensors are being developed for single particle detection, particularly as a tool for pathogen diagnosis. The sensitivity of the biosensor chip depends on design parameters, illumination format (side vs. top), and flow con
Externí odkaz:
https://doaj.org/article/4f077ae6024f4414a59f5454d276223d
Publikováno v:
Sensing and Bio-Sensing Research, Vol 6, Iss , Pp 33-38 (2015)
We present two designs for metal compliant mechanisms for use as threshold accelerometers which require zero external power. Both designs rely on long, thin flexures positioned orthogonally to a flat body. The first design involves cutting or stampin
Externí odkaz:
https://doaj.org/article/0cb5ea252af24148ac71fd1da3c85d71