{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T18:04:25Z","timestamp":1792087465134,"version":"4.4.0"},"reference-count":39,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2022,11,17]],"date-time":"2022-11-17T00:00:00Z","timestamp":1668643200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Department of Science and Technology of Guangxi Zhuang Autonomous Region","award":["AD17129002"],"award-info":[{"award-number":["AD17129002"]}]},{"name":"Department of Science and Technology of Guangxi Zhuang Autonomous Region","award":["2017GXNSFDA198041"],"award-info":[{"award-number":["2017GXNSFDA198041"]}]},{"name":"Department of Science and Technology of Guangxi Zhuang Autonomous Region","award":["20201071"],"award-info":[{"award-number":["20201071"]}]},{"name":"the Key projects of Guangxi natural science fund","award":["AD17129002"],"award-info":[{"award-number":["AD17129002"]}]},{"name":"the Key projects of Guangxi natural science fund","award":["2017GXNSFDA198041"],"award-info":[{"award-number":["2017GXNSFDA198041"]}]},{"name":"the Key projects of Guangxi natural science fund","award":["20201071"],"award-info":[{"award-number":["20201071"]}]},{"name":"Nanning key R and D program","award":["AD17129002"],"award-info":[{"award-number":["AD17129002"]}]},{"name":"Nanning key R and D program","award":["2017GXNSFDA198041"],"award-info":[{"award-number":["2017GXNSFDA198041"]}]},{"name":"Nanning key R and D program","award":["20201071"],"award-info":[{"award-number":["20201071"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biosensors"],"abstract":"<jats:p>For the first time, a nanobiosensor was established for Sorghum mosaic virus (SrMV) detection. The biosensor consists of cadmium telluride quantum dots (CdTe QDs) conjugated to the specific antibody (Ab) against SrMV coat protein (CP) and carbon quantum dots (C QDs) labeled with SrMV coat protein. The formation of the fluorophore-quencher immunocomplex CdTe QDs-Ab+C QDs-CP led to a distinct decrease in the fluorescence intensity of CdTe QDs. Conversely, the emission intensity of CdTe QDs recovered upon the introduction of unlabeled CP. The developed biosensor showed a limit of detection of 44 nM in a linear range of 0.10\u20130.54 \u03bcM and exhibited the strongest fluorescence intensity (about 47,000 a.u.) at 552 nm. This strategy was applied to detect purified CP in plant sap successfully with a recovery rate between 93\u2013103%. Moreover, the feasibility of the proposed method was further verified by the detection of field samples, and the results were consistent with an enzyme-linked immunosorbent assay (ELISA). Contrarily to ELISA, the proposed biosensor did not require excessive washing and incubation steps, thus the detection could be rapidly accomplished in a few minutes. The high sensitivity and short assay time of this designed biosensor demonstrated its potential application in situ and rapid detection. In addition, the fluorescence quenching of CdTe QDs was attributed to dynamic quenching according to the Stern-Volmer equation.<\/jats:p>","DOI":"10.3390\/bios12111034","type":"journal-article","created":{"date-parts":[[2022,11,18]],"date-time":"2022-11-18T03:29:50Z","timestamp":1668742190000},"page":"1034","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["A Rapid, Fluorescence Switch-On Biosensor for Early Diagnosis of Sorghum Mosaic Virus"],"prefix":"10.3390","volume":"12","author":[{"given":"Zhenlong","family":"Han","sequence":"first","affiliation":[{"name":"School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Congyuan","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dan","family":"Xiao","sequence":"additional","affiliation":[{"name":"College of Life Science and Technology, Guangxi University, Nanning 530004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yinfu","family":"Lin","sequence":"additional","affiliation":[{"name":"College of Life Science and Technology, Guangxi University, Nanning 530004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9358-3385","authenticated-orcid":false,"given":"Ronghui","family":"Wen","sequence":"additional","affiliation":[{"name":"College of Life Science and Technology, Guangxi University, Nanning 530004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Baoshan","family":"Chen","sequence":"additional","affiliation":[{"name":"College of Agriculture, Guangxi University, Nanning 530004, China"},{"name":"Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning 530004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xipu","family":"He","sequence":"additional","affiliation":[{"name":"School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China"},{"name":"Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning 530004, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"62","DOI":"10.1016\/j.cropro.2014.02.010","article-title":"Evaluation of resistance to Sorghum mosaic virus (SrMV) in 49 new elite sugarcane varieties\/clones in China","volume":"60","author":"Li","year":"2014","journal-title":"Crop Prot."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"237","DOI":"10.1016\/j.sjbs.2015.02.013","article-title":"Characterization of a Sorghum mosaic virus (SrMV) isolate in China","volume":"23","author":"Zhang","year":"2016","journal-title":"Saudi J. 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