Publication:
Fluorescence detection of deoxyadenosine in Cordyceps spp. By indicator displacement assay

dc.contributor.authorArinta Agnie Dewantarien_US
dc.contributor.authorNattha Yongwattanaen_US
dc.contributor.authorPanwajee Payongsrien_US
dc.contributor.authorSawinee Seemakhanen_US
dc.contributor.authorSuparerk Borwornpinyoen_US
dc.contributor.authorAkio Ojidaen_US
dc.contributor.authorJirarut Wongkongkatepen_US
dc.contributor.otherMahidol Universityen_US
dc.contributor.otherKyushu Universityen_US
dc.date.accessioned2020-06-02T04:06:57Z
dc.date.available2020-06-02T04:06:57Z
dc.date.issued2020-05-01en_US
dc.description.abstract© 2020 by the authors. A rapid, sensitive and reliable indicator displacement assay (IDA) for specific detection of 2'- and 3'-deoxyadenosine (2'-dAde and 3'-dAde), the latter is also known as cordycepin, was established. The formation of inclusion complex between protonated acridine orange (AOH+) and cucurbit[7]uril (CB7) resulted in the hypochromic shift of fluorescent emission from 530 nm to 512 nm. Addition of cordycepin to the highly fluorescent AOH+/CB7 complex resulted in a unique tripartite AOH+/CB7/dAde complex with diminished fluorescence, and such reduction in emission intensity serves as the basis for our novel sensing system. The detection limits were 11 and 82 µM for 2'- and 3'-deoxyadenosine, respectively. The proposed method also demonstrated high selectivity toward 2'- and 3'-deoxyadenosine, owing to the inability of other deoxynucleosides, nucleosides and nucleotides commonly found in Cordyceps spp. to displace the AOH+ from the AOH+/CB7 complex, which was confirmed by isothermal titration calorimetry (ITC), UV-Visible and proton nuclear magnetic resonance (1H-NMR) spectroscopy. Our method was successfully implemented in the analysis of cordycepin in commercially available Ophiocordyceps and Cordyceps supplements, providing a novel and effective tool for quality assessment of these precious fungi with several health benefits.en_US
dc.identifier.citationMolecules. Vol.25, No.9 (2020)en_US
dc.identifier.doi10.3390/molecules25092045en_US
dc.identifier.issn14203049en_US
dc.identifier.other2-s2.0-85084058808en_US
dc.identifier.urihttps://repository.li.mahidol.ac.th/handle/123456789/56115
dc.rightsMahidol Universityen_US
dc.rights.holderSCOPUSen_US
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85084058808&origin=inwarden_US
dc.subjectBiochemistry, Genetics and Molecular Biologyen_US
dc.subjectChemistryen_US
dc.subjectPharmacology, Toxicology and Pharmaceuticsen_US
dc.titleFluorescence detection of deoxyadenosine in Cordyceps spp. By indicator displacement assayen_US
dc.typeArticleen_US
dspace.entity.typePublication
mu.datasource.scopushttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85084058808&origin=inwarden_US
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