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Carbon　nanodots　as　peroxidase　mimetics　and　their　applications　to　glucose detection3,3,5,5-四甲基联苯胺（C16H20N2）分子量：240.34　一种新型安全的色原试剂；Carbon nanodots (C-Dots) were found to possess intrinsic　peroxidase（过氧物酶）-like activity, and could catalytically（催化地） oxidize　3,3,5,5-tetramethylbenzidine (TMB) by H2O2　to produce a　colour reaction. This o?ers a simple, sensitive and selective　colorimetric（比色的） method for glucose determination in serum（血液）。（碳纳米点被发现拥有类似过氧物酶的活性，可以催化过氧化氢氧化ＴＭＢ）C-Dots were first reported in 2004,and have subsequently（随后）attracted considerable（相当的） attention due to their promising　advantages.2（碳点０４年被发现，由于其优秀的优点随后吸引了大量的关注）C-Dots exhibit several promising advantages　compared with quantum dots, such as tunable（可调的）luminescence　emission, high stability against photobleaching and blinking.3In addition, C-Dots are biocompatible, small, and have low　molecular weight and toxicity, which makes them superior（优秀） to　quantum dots.3,4（C-Dots展示几种有前景的优势与量子点相比,如可调发光放射,对于光漂白和闪烁的高稳定性。此外,C-Dots生物适应性,分子小,低分子量和毒性,这使得它们优于量子点）Applications of C-Dots in bioimaging based　on their optical（光学的）characteristics have been successfully demonstrated by several groups.4Sun and co-workers demonstrated　the potential of passivated C-Dots for two-photon fluorescence　imaging of cells,5and used C-Dots for in vivo studies of optical　imaging.6Ray et al. applied C-Dots to cellular bioimaging and　demonstrated their ability to penetrate into cells.（基于他们的光学特性的应用已经被几个团队成功展示。孙和同事证明了钝化的C-Dots在细胞的双光子荧光成像技术的潜力,并且C-Dots用于体内光学成像的研究。雷等人应用C-Dots于细胞生物成像和证明他们渗透进入细胞的能力）3These　applications are important and attractive. Up to now, the activity of the C-Dots as enzymatic mimetics（酶的模拟） has not been reported although there are some works on intrinsic（固有的）peroxidase（过氧物酶）-like activities of other nanoparticles (NPs).7Herein, we　demonstrate the intrinsic catalytic activity of C-Dots in the　catalysis of oxidation of a peroxidase substrate TMB in the　presence of H2O2　to produce a blue color. C-Dots were used　successfully for h