PMID- 32121316 OWN - NLM STAT- MEDLINE DCOM- 20201119 LR - 20240328 IS - 1660-3397 (Electronic) IS - 1660-3397 (Linking) VI - 18 IP - 3 DP - 2020 Feb 29 TI - Application of Gelatin Decorated with Allura Red as Resonance Rayleigh Scattering Sensor to Detect Chito-Oligosaccharides. LID - 10.3390/md18030146 [doi] LID - 146 AB - A convenient and sensitive triple-wavelength overlapping resonance Rayleigh scattering (TWO-RRS) method for the detection of chito-oligosaccharides (COS) was proposed based on enhancing the rigid surface of porous reticular spatial structure of gelatin and COS by introducing allura red AC (AR). The interaction and resultant porous reticular spatial structure were characterized with transmission electron microscopy (TEM), RRS, and UV-Vis spectroscopy. The results indicated that gelatin and COS formed porous reticular spatial structure with an average diameter of 1.5-2.0 mum, and the RRS value of COS-AR-gelatin ternary system with gelatin participation was significantly higher than that of COS-AR binary system. Under the optimal conditions, the enhanced TWO-RRS intensity of the system was linearly proportional to COS concentration in the range of 0.30-2.50 mug/mL, and the regression equation was DeltaI = 4933.2c-446.21 with R(2) = 0.9980. The limit of detection was 0.0478 mug/mL. So, a new method for the detection of COS was established and verified in the health products with satisfactory results. FAU - Zou, Weiling AU - Zou W AD - School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, Guangdong, China. FAU - Sun, Zijun AU - Sun Z AD - School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, Guangdong, China. FAU - Su, Zhengquan AU - Su Z AD - Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China. FAU - Bai, Yan AU - Bai Y AD - School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, Guangdong, China. LA - eng GR - No. 201804010329/the Industry University Research Collaborative Innovation Major Projects of Guangzhou Science Technology Innovation Commission, China/ GR - No. 2018A0303130079/the National Natural Science Foundation of Guangdong, China/ GR - No. 2017GCZX002/Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs/ GR - No. 2016KTSCX065/the Innovation strong school project of the Guangdong Pharmaceutical University, China/ GR - No. 201604020164/the Industry University Research Collaborative Innovation Major Projects of Guangzhou Science Technology Innovation Commission, China/ PT - Journal Article DEP - 20200229 PL - Switzerland TA - Mar Drugs JT - Marine drugs JID - 101213729 RN - 0 (Azo Compounds) RN - 0 (Oligosaccharides) RN - 1398-61-4 (Chitin) RN - 25956-17-6 (Allura Red AC Dye) RN - 9000-70-8 (Gelatin) SB - IM MH - Animals MH - Azo Compounds MH - Chitin/*chemistry MH - Gelatin/*chemistry MH - Oligosaccharides/*chemistry MH - Spectrometry, Fluorescence PMC - PMC7143526 OTO - NOTNLM OT - allura red AC OT - chito-oligosaccharides OT - gelatin OT - triple-wavelength overlapping resonance Rayleigh scattering COIS- The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2020/03/04 06:00 MHDA- 2020/11/20 06:00 PMCR- 2020/03/01 CRDT- 2020/03/04 06:00 PHST- 2020/01/11 00:00 [received] PHST- 2020/02/23 00:00 [revised] PHST- 2020/02/24 00:00 [accepted] PHST- 2020/03/04 06:00 [entrez] PHST- 2020/03/04 06:00 [pubmed] PHST- 2020/11/20 06:00 [medline] PHST- 2020/03/01 00:00 [pmc-release] AID - md18030146 [pii] AID - marinedrugs-18-00146 [pii] AID - 10.3390/md18030146 [doi] PST - epublish SO - Mar Drugs. 2020 Feb 29;18(3):146. doi: 10.3390/md18030146.