A kind of graphene quantum dot CPCG modified by oxanone Schiff base and the preparation method and the application of the preparation of sodium glutamate detection reagent, the oxanone ketone Schiff base was introduced into the water-soluble nanometer quantum dots, for example, the Schiff base, which was synthesized by the reaction of 1 polychlorinated 4 chloropropyl sulfur heteroxanthracanthracene, and chitosan, was introduced into graphite. The graphene quantum dots modified by the oxanone Schiff base, which has high water solubility and selectivity to sodium glutamate, have been obtained on the alkene quantum dots. The synthesis method is simple, the condition is mild and the product is easy to obtain. The compound is used in the invention of sodium glutamate detection to obtain good results, not by other conventional coexisting biomolecules, such as Gump. The effects of amino acids, arginine, methionine, glucose, glucosamine and other substances are highly selective. The fluorescence spectrophotometer is easy to operate and the fluorescence signal of the sample is obvious.
【技术实现步骤摘要】
氧杂蒽酮希夫碱改性的石墨烯量子点CPCG及制备方法与制备谷氨酸钠检测试剂上的应用
本专利技术涉及识别结合和用于光学检测人体和哺乳动物所必须的氨基酸组氨酸的分子检测
,特别涉及一种氧杂蒽酮希夫碱改性的石墨烯量子点CPCG及其制备方法与制备谷氨酸钠荧光检测试剂上的应用。
技术介绍
L-谷氨酸钠是脊椎动物中枢神经系统一种兴奋性神经递质,是一种强效的神经兴奋性氨基酸,与一定的行为方式有关如攻击性行为视觉任务学习、肌肉僵硬和逆行性遗忘([Compagnone,D.,Federici,G.,Massoud,R.,etal.Clin.Chem.1992,38,2306–2310.JGordon,.A.Nat.Neurosci.2010,13,2–4.Jamal,M.,Hasan,Mathewson,M.,A.,etal.Biosens.Bioelectron.2013,40,213–218.).L-谷氨酸钠在食品加工、临床应用也有重要用途。但是谷氨酸钠摄取太多会引起头疼、恶心(Chang,K.S.,Chang,C.K.,Chou,S.F.,etal,Biosens.Bioelectron.2007,22,2914–2920.Jamal,M.,Xu,J.,Razeeb,K.M.Biosens.Bioelectron.2010,26,1420–1424.)。当前世界上检测谷氨酸钠的方法有多种,包括电化学分析法,电泳,高效液相色谱等方法,但这些方法所用设备昂贵,操作复杂、耗时,需要专业的工作人员。荧光光度法灵敏度高测试简单。科研工作者利用基因编码的CFP/YFP检测谷氨 ...
【技术保护点】
一种氧杂蒽酮希夫碱改性的石墨烯量子点CPCG,其特征在于,所述的氧杂蒽酮希夫碱改性的石墨烯量子点CPCG的结构式如下:
【技术特征摘要】
1.一种氧杂蒽酮希夫碱改性的石墨烯量子点CPCG,其特征在于,所述的氧杂蒽酮希夫碱改性的石墨烯量子点CPCG的结构式如下:。2.一种权利要求1所述的氧杂蒽酮希夫碱改性的石墨烯量子点CPCG的制备方法,其特征在于,包括以下步骤:(1)氧杂蒽酮希夫碱CP的合成:将1-1.5g的壳聚糖置放于含有1-5%醋酸的100mL水溶液中,匀速搅拌12-24h后,将溶液转移至三颈瓶中,逐滴滴入含有0.1-0.3g1-氯-4-丙氧基硫杂蒽-9-酮的100-150mL乙醇溶液,再逐滴滴入2-3mL的冰醋酸,混合物于60-70℃加热搅拌20-24h后,停止搅拌,冷至室温后用NaOH溶液中和至溶液呈中性,过滤,洗涤,干燥,得到氧杂蒽酮希夫碱CP;(2)氧杂蒽酮希夫碱改性的石墨烯量子点CPCG的合成:将0.1-0.5g的氧杂蒽酮希夫碱CP置于100mLpH为4-6的醋酸水溶液中,搅拌至其分散均匀,取2.0-4.0mg/mL的石墨烯量子点水溶液30-50mL置于100mL的烧杯中,滴加0.1-0.5mL的N-羟基琥珀酰亚胺与1-(3-二甲氨基丙基)-3-乙基碳二亚胺盐酸盐的混合溶剂做催化剂,静置活化10-30min后,逐滴加入上述分散均匀的氧杂蒽酮希夫碱CP溶液,30...
【专利技术属性】
技术研发人员:程如梅,区升举,程秀梅,姚清清,
申请(专利权)人:温州医科大学,
类型:发明
国别省市:浙江,33
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