3D金纳米胶囊SERS基底对食品污染物的快速检测  

Rapid detection of contaminants in food by 3D gold nano capsule SERS basement

作　　者：汪胜 栾龙龙 范维维 郑豆豆 张艺欣 徐维平 WANG Sheng;LUAN Long-long;FAN Wei-wei;ZHENG Dou-dou;ZHANG Yi-xin;XU Wei-ping(School of Chemistry and Chemical Engineering,Hefei University of Technology,Hefei 230009,China;College of Medicine,Anhui University of Chinese Medicine,Hefei 230012,China;The First Affiliated Hospital of USTC,Division of Life Sciences and Medicine,University of Science and Technology of China,Hefei 230001,China)

机构地区：[1]合肥工业大学化学与化工学院,安徽合肥230009 [2]安徽中医药大学药学院,安徽合肥230012 [3]中国科学技术大学生命科学与医学部(中国科学技术大学第一附属医院),安徽合肥230001

出　　处：《现代化工》2023年第5期220-224,229,共6页Modern Chemical Industry

基　　金：国家自然科学基金项目(52072360,51672004);安徽省科技攻关项目(1804h08020252)。

摘　　要：首先采用种子生长法合成金纳米双锥体,再通过水和正丁醇的乳化体系液液组装而形成3D纳米胶囊。这些金胶体具有六边形密排多层壳,由于强粒子间等离子体耦合,显示出低反射率和强宽带吸收。结晶紫(CV)作为探针分子具有较高的灵敏性和重复性,同时,对孔雀石绿(MG)、福美双(THR)、噻苯咪唑(TBZ)的检测极限均达到了10-9mol/L。Firstly,a gold nano bipyramid is prepared by the seed growth method.Then,3D nano capsules are prepared through liquid-liquid assembly of water/n-butanol emulsion system.These gold colloids have hexagonal densely packed multilayer shells and exhibit low reflectivity and strong broadband absorption due to strong interparticle plasma coupling.Crystal violet(CV)as a probe molecule has high sensitivity and repeatability,and its detection limits for malachite green,thiram and thiabendazole all reach 10-9 mol·L^(-1).

关 键 词：纳米胶囊 液相检测 表面拉曼增光谱 食品污染物 定量分析 

分 类 号：R155[医药卫生—营养与食品卫生学]