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A review of metal nanoparticle-based surface-enhanced Raman scattering substrates for severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)detection Special Collection:Distinguished Australian Researchers

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Aggregate 2023年第5期4卷 1-11页

作者： Norhayati Abu Bakar Nur Nazhifah Yusoff Farah Shahadah Nor Azmi Joseph George Shapter Australian Institute for Bioengineering and nanotechnology University of QueenslandSt LuciaAustralia Institute of microengineering and Nanoelectronics Universiti Kebangsaan MalaysiaBangiMalaysia

Monitoring an infectious disease early using highly sensitive and non-invasive techniques is critical for human ***,the development of surfaceenhanced Raman scattering(SERS)for biological detection ideally fits these medical requirements and is rapidly growing as a powerful diagnostic *** can enhance the Raman signal of the target molecule by more than 106 after the adsorption of the molecule on the plasmonic nanostructured *** review provides an overview of the use of gold and silver nanoparticles in SERS substrate designs,followed by the development of these SERS substrates in severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)detection.

关键词： gold nanostars SARS-CoV-2 SERS silver nanostars

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Color-selective holographic retroreflector array for sensing applications

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Light(Science & Applications) 2016年第1期5卷 241-249页

作者： Rajib Ahmed Ali K Yetisen Seok Hyun Yun Haider Butt microengineering and nanotechnology laboratory School of EngineeringUniversity of BirminghamBirmingham B152TTUK Harvard Medical School and Wellman Center for Photomedicine Massachusetts General HospitalCambridgeMA 02139USA Harvard-MIT Division of Health Sciences and Technology Massachusetts Institute of TechnologyCambridgeMA 02139USA

Corner cube retroreflectors(CCRs)have applications in sensors,image processing,free space communication and wireless *** ability to construct low-loss wavelength filters embedded in CCRs can enable the development of wavelength multiplexing,tunable lasers and photonic integrated *** we created an~10-μm-thick holographic corner cube retroreflector(HCCR)array that acted as a color-selective wavelength filter and diffracted light at broad ***-resolved spectral measurements showed that the Bragg peak of the diffracted light from the HCCR array could be tuned from 460 to 545 nm by varying the incident *** HCCR array also exhibited a wavelength-selective tuning capability based on the rotation angle in the visible *** projected holographic images with the rotational property in the far *** utility of the HCCR was demonstrated as optical temperature and relative humidity sensors that produced a visible colorimetric response for rapid diagnostics.

关键词： Bragg gratings corner cube retroreflectors diffraction optics holography sensors

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Capillaric field effect transistors

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Microsystems & Nanoengineering 2022年第2期8卷 59-71页

作者： Claude Meffan Julian Menges Fabian Dolamore Daniel Mak Conan Fee Renwick C.J.Dobson Volker Nock Department of Electrical and Computer Engineering University of CanterburyChristchurch 8041New Zealand Department of microengineering Kyoto University615-8540 KyotoJapan School of Biological Sciences University of CanterburyChristchurch 8041New Zealand Biomolecular Interaction Centre School of Biological SciencesUniversity of CanterburyChristchurch 8041New Zealand School of Product Design University of CanterburyChristchurch 8041New Zealand Department of Biochemistry and Molecular Biology Bio21 Molecular Science and Biotechnology InstituteUniversity of MelbourneParkvilleVIC 3010Australia The MacDiarmid Institute for Advanced Materials and nanotechnology Wellington 6140New Zealand

Controlling fluid flow in capillaric circuits is a key requirement to increase their uptake for assay *** action off-valves provide such functionality by pushing an occluding bubble into the channel using a difference in capillary ***,we utilized the binary switching mode of this structure to develop a powerful set of fundamental fluidic valving *** this work,we study the transistor-like qualities of the off-valve and provide evidence that these structures are in fact functionally complementary to electronic junction field effect *** view of this,we propose the new term capillaric field effect transistor to describe these types of *** support this conclusion,we present a theoretical description,experimental characterization,and practical application of analog flow resistance *** addition,we demonstrate that the valves can also be *** show modulation of the flow resistance from fully open to pinch-off,determine the flow rate-trigger channel volume relationship and demonstrate that the latter can be modeled using Shockley's equation for electronic ***,we provide a first example of how the valves can be opened and closed repeatedly.

关键词： transistors effect field

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