Development of an electrochemical device capable of loop mediated isothermal amplification (LAMP) to detect hepatitis B (Record no. 29126)

MARC details
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005 - DATE AND TIME OF LATEST TRANSACTION
control field 20260818090800.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 190826s2017 th uu m rtt 0| a1eng d
035 ## - SYSTEM CONTROL NUMBER
System control number .b12310037
099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC)
Classification number AIT Thesis no.FB-17-02
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Jayanath, Nileththi Yasendra
245 10 - TITLE STATEMENT
Title Development of an electrochemical device capable of loop mediated isothermal amplification (LAMP) to detect hepatitis B
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of publication, distribution, etc. Pathum Thani, Thailand :
Name of publisher, distributor, etc. Asian Institute of Technology,
Date of publication, distribution, etc. 2017
300 ## - PHYSICAL DESCRIPTION
Extent 93 leaves :
Other physical details ill. +
Accompanying material 1 online resource
490 1# - SERIES STATEMENT
Series statement Thesis ;
Volume/sequential designation no.FB-17-02
500 ## - GENERAL NOTE
General note A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Food Engineering and Bioprocess Technology, School of Environment, Resources and Development
502 ## - DISSERTATION NOTE
Dissertation note Thesis (M. Sc.) - Asian Institute of Technology, 2017
520 ## - SUMMARY, ETC.
Summary, etc. A sensitive, simple and inexpensive technique for point - of - care (POC) diagnosis of hepatitis B (HBV) is highly desirable majorly due to the lack of advanced medical and diagnostic facilities in some endemic areas . The objective of this study was to develop a low - cost and simple device based on Loop - mediated isothermal amplification (LAMP) of DNA and electrochemical measurement for rapid detection of HBV. The electrochemical mediato r methylene blue (MB) was intercalated into the LAMP amplicons and square wave voltammetry (SWV) signals were processed by a hand - held potentiostat. SWV response of MB was studied with different concentrations. LAMP was optimized for temperature and MB con centrations for real time monitoring. Quantification curves were developed followed by testing of unknowns, using conventional and sigmoidal model fitting (4 parametric) approaches whereas both peak height ratio (PHR) and amplification times were used as t hresholds. Sensitivity and specificity were assessed followed by testing human plasma without DNA extraction. A positive linear relationship of peak currents of SWV vs concentrations of MB was observed with significantly higher currents at higher temperat ure. Incubation temperature of 63 o C and 25 o M of MB were the optimized condition for LAMP based on reduction of PHRs. Linear relationships between logarithmic concentrations of HBV DNA vs amplification time and PHRs depending on the thresholds were obtain ed with different coefficient of determination (R 2 ) value. Peak height thresholds of 0.6 and time threshold of 22 min were found to be more suited in conventional approach while the former varied to 0.7 and latter remined same in model fitting approach, ba sed on R 2 . Concentrations of the unknowns were quantified successfully to the logarithmic concentrations of DNA. The a pproach was found to be specific for HBV as no PHR reduction for human genomic DNA and HBV DNA up to fg/ o l was detected . Human plasma coul d be used directly as the temp late after a pre - heat treatment of either subsequent heating for 5 min at 95 o C and 100 o C or 125 o C for 10 min whereas the centrifugation step of the former increased the LAMP efficiency.
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Hepatitis B
General subdivision Prevention
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Loc Thai Nguyen,
Relator term Chairperson
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Anal, Anil Kumar,
Relator term Examination Committee
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Sadiq, Muhammad Bilal,
Relator term Examination committee
710 2# - ADDED ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element Asian Institute of Technology Fellowship,
Relator term Scholarship donor
810 2# - SERIES ADDED ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element Asian Institute of Technology.
Title of a work Thesis ;
Volume/sequential designation no. no.FB-17-02
856 ## - ELECTRONIC LOCATION AND ACCESS
Materials specified Full-Text
Uniform Resource Identifier <a href="http://203.159.5.9/ait-thesis/detail.php?q=B02861">http://203.159.5.9/ait-thesis/detail.php?q=B02861</a>
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998 ## - LOCAL CONTROL INFORMATION (RLIN)
Operator's initials, OID (RLIN) 0
Cataloger's initials, CIN (RLIN) 190826
First date, FD (RLIN) m
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Koha item type 40-Archives
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type 61-CD-ROM
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type 20-AIT Publication
909 ## - LOCAL ITEMS USED
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CREATED CREATED : 2019-05-23
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Holdings
Withdrawn status Lost status Damaged status Not for loan Home library Current library Shelving location Date acquired Total checkouts Full call number Barcode Date last seen Copy number Price effective from Koha item type Cost, normal purchase price
      Available for Loans Asian Institute of Technology Library Asian Institute of Technology Library Archives 18/08/2026   AIT Thesis no.FB-17-02 30050120894471 18/08/2026 1 18/08/2026 40-Archives  
      Available for Loans Asian Institute of Technology Library Asian Institute of Technology Library Archives 18/08/2026   AIT Thesis no.FB-17-02   18/08/2026   18/08/2026 61-CD-ROM  
      Available for Loans Asian Institute of Technology Library Asian Institute of Technology Library AIT Publications 18/08/2026   AIT Thesis no.FB-17-02 30050120955579 18/08/2026 1 18/08/2026 20-AIT Publication 50.00
      Available for Loans Asian Institute of Technology Library Asian Institute of Technology Library AIT Publications 18/08/2026   AIT Thesis no.FB-17-02 30050120955546 18/08/2026 2 18/08/2026 20-AIT Publication 50.00
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