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Yoctomole electroch...
Yoctomole electrochemical genosensing of Ebola virus cDNA by rolling circle and circle to circle amplification
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- Carinelli, S. (author)
- Univ Autonoma Barcelona, Dept Quim, Grp Sensors & Biosensors, Bellaterra, Spain.
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- Kühnemund, Malte (author)
- Uppsala universitet,Science for Life Laboratory, SciLifeLab,Institutionen för immunologi, genetik och patologi
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- Nilsson, Mats (author)
- Uppsala universitet,Stockholms universitet,Institutionen för biokemi och biofysik,Science for Life Laboratory (SciLifeLab),Science for Life Laboratory, SciLifeLab,Institutionen för immunologi, genetik och patologi,Stockholm Univ, Dept Biochem & Biophys, Sci Life Lab, Box 1031, SE-17I21 Solna, Sweden.
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- Pividori, M. I. (author)
- Univ Autonoma Barcelona, Dept Quim, Grp Sensors & Biosensors, Bellaterra, Spain.
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Univ Autonoma Barcelona, Dept Quim, Grp Sensors & Biosensors, Bellaterra, Spain Science for Life Laboratory, SciLifeLab (creator_code:org_t)
- Elsevier BV, 2017
- 2017
- English.
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In: Biosensors & bioelectronics. - : Elsevier BV. - 0956-5663 .- 1873-4235. ; 93, s. 65-71
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- This work addresses the design of an Ebola diagnostic test involving a simple, rapid, specific and highly sensitive procedure based on isothermal amplification on magnetic particles with electrochemical readout. Ebola padlock probes were designed to detect a specific L-gene sequence present in the five most common Ebola species. Ebola cDNA was amplified by rolling circle amplification (RCA) on magnetic particles. Further re-amplification was performed by circle-to-circle amplification (C2CA) and the products were detected in a double-tagging approach using a biotinylated capture probe for immobilization on magnetic particles and a readout probe for electrochemical detection by square-wave voltammetry on commercial screen-printed electrodes. The electrochemical genosensor was able to detect as low as 200 ymol, corresponding to 120 cDNA molecules of L-gene Ebola virus with a limit of detection of 33 cDNA molecules. The isothermal double-amplification procedure by C2CA combined with the electrochemical readout and the magnetic actuation enables the high sensitivity, resulting in a rapid, inexpensive, robust and user-friendly sensing strategy that offers a promising approach for the primary care in low resource settings, especially in less developed countries.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Miljöbioteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Biotechnology (hsv//eng)
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Medicinsk bioteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Medical Biotechnology (hsv//eng)
Keyword
- Ebola virus
- Electrochemical genosensing
- Magnetic particle
- Isothermal amplification
- Circle-to-circle amplification
Publication and Content Type
- ref (subject category)
- art (subject category)
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