NDLI: Disposable cartridge platform for rapid detection of viral hemorrhagic fever viruses

Content Provider	Royal Society of Chemistry (RSC)
Author	Mire, Chad E. Fawcett, Helen E. Carter, Erik Geisbert, Thomas W. Scherr, Steven M. Kuroda, Melody Connor, John H. Rosca, Alexandru Freedman, David S. Agans, Krystle N. Ünlü, M. Selim
Copyright Year	2017
Abstract	Light microscopy is a straightforward and highly portable imaging approach that is used for the detection of parasites, fungi, and bacteria. The detection of individual virus particles has historically not been possible through this approach. Thus, characterization of virus particles is typically performed using high-energy approaches such as electron microscopy. These approaches require purification of virions away from its normal milieu, significant levels of expertise, and only count a small number of particles at a time. To correct these deficiencies we created a platform that allows label-free, point-of-need virus imaging and counting. We adapted a multiplex-capable, interferometric imaging technique to a closed-system that allows real-time particle detection in complex mixtures. To maximize virus particle binding we constructed a disposable device with a constant flow rate of ∼3 μl min−1. Biosafety was achieved by having a sealable sample addition port. Using this platform we were able to readily identify virus binding in a 20 minute experiment. Sensitivity was comparable to laboratory-based assays such as ELISA and plaque assay, and showed equal or better sensitivity against paper-based assays designed for point-of-need use. Our results demonstrate a platform that can be used for rapid multiplexed detection and visualization of whole virus particles. We envision this technology as a sample-to-answer platform for detection and visualization of viruses without the need for prior labeling. This would enable both research investigation of virus particle behavior and morphology and have the potential to be used in a diagnostic context, where direct imaging from samples such as blood and urine would be valuable.
Starting Page	917
Ending Page	925
Page Count	9
File Format	HTM / HTML PDF
ISSN	14730197
Volume Number	17
Issue Number	5
Journal	Lab on a Chip
DOI	10.1039/c6lc01528j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Virus Multiplexing Urine Fungus Microscopy Bacteria Virus quantification
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Biochemistry Bioengineering Biomedical Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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