{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T20:25:06Z","timestamp":1793132706320,"version":"4.5.0"},"reference-count":73,"publisher":"American Chemical Society (ACS)","issue":"3","license":[{"start":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T00:00:00Z","timestamp":1771459200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/na","name":"High Potential Postdoctoral Fellowship Chulalongkorn University, the Second Century Fund","doi-asserted-by":"publisher","award":["NA"],"award-info":[{"award-number":["NA"]}],"id":[{"id":"10.13039\/na","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,6,17]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The COVID-19 pandemic brought to light the demand for nucleic-acid sensing platforms that are rapid, resilient, and scalable for integration at the point-of-care. In this study, we described a green-engineered fluorescence biosensing platform using a Ag\u2013TiO2\u2013CeO2 ternary nanocomposite fabricated with Morinda citrifolia leaf extract. The biosynthetic approach facilitated the production of a nanocomposite that is biocompatible, exhibits high surface area, and contains oxygen vacancy related to surface sites that promote favorable interactions with nucleic acids. The nanocomposite was functionalized with thiol-terminated antisense probes targeting the SARS-CoV-2 N-gene and employed in enzyme-free hybridization assays, using synthetic DNA as a model target and human genomic DNA as a model for nonspecific hybridization. The platform showed a significant shift in fluorescence after 30 min of hybridization and was capable of detecting target unlabeled DNA at a concentration of 3 pM. The interaction of the nanocomposite with short DNA oligonucleotides and long double-stranded genomic DNA showed the potential of the surface chemistry of the nanocomposite for nucleic acid sensing. This study provides a nanocomposite fluorescence biosensing platform at the material proof level and paves the way for future extensions and viral diagnostics in complex biological mixtures.<\/jats:p>","DOI":"10.1021\/acsnanoscienceau.5c00179","type":"journal-article","created":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T11:50:27Z","timestamp":1771501827000},"page":"429-443","source":"Crossref","is-referenced-by-count":1,"title":["Eco-Friendly\nEngineered Ternary Nanocomposite for\nLabel-Free Fluorescent SARS-CoV-2 N-Gene DNA Detection"],"prefix":"10.1021","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6047-6850","authenticated-orcid":true,"given":"Manikandan","family":"Dhayalan","sequence":"first","affiliation":[{"name":"Chulalongkorn University , , ,","place":["Bangkok, Thailand, 10330"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mallu","family":"Chenna Reddy","sequence":"additional","affiliation":[{"name":"Geethanjali College of Engineering and Technology , , , ,","place":["Hyderabad, Telangana, India, 501301"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0567-7857","authenticated-orcid":true,"given":"Madan Kumar","family":"Arumugam","sequence":"additional","affiliation":[{"name":"Sathyabama Institute of Science and Technology , , , ,","place":["Chennai, Tamil Nadu, India, 600119"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4573-457X","authenticated-orcid":true,"given":"Desy","family":"Liana","sequence":"additional","affiliation":[{"name":"Chulalongkorn University , , ,","place":["Bangkok, Thailand, 10330"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2892-6318","authenticated-orcid":true,"given":"Billy Wai-Lung","family":"Ng","sequence":"additional","affiliation":[{"name":"The Chinese University of Hong Kong , , ,","place":["Shatin, New Territories, Hong Kong SAR, China"]},{"name":"The Chinese University of Hong Kong , , ,","place":["Shatin, New Territories, Hong Kong SAR, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8731-3875","authenticated-orcid":true,"given":"Anuchit","family":"Phanumartwiwath","sequence":"additional","affiliation":[{"name":"Chulalongkorn University , , ,","place":["Bangkok, Thailand, 10330"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,2,19]]},"reference":[{"issue":"6","key":"2026073019133522600_cit1","doi-asserted-by":"publisher","first-page":"7617","DOI":"10.1021\/acsnano.0c03822","article-title":"Selective\nNaked-Eye Detection of SARS-CoV-2 Mediated by N Gene Targeted Antisense\nOligonucleotide Capped Plasmonic Nanoparticles","volume":"14","author":"Moitra","year":"2020","journal-title":"ACS Nano"},{"issue":"1","key":"2026073019133522600_cit2","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-022-23996-y","article-title":"SARS-CoV-2 detection by targeting\nfour loci of viral genome using graphene oxide and gold nanoparticle\nDNA biosensor","volume":"12","author":"Babadi","year":"2022","journal-title":"Sci. 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