●基本介绍:三八面体金纳米晶由八个三角锥组成,三角锥位于八面体的八个面上,它的24个表面为{3 3 1}高指数晶面,具有形貌尺寸精确可控、化学活性强、高可组装性、单分散性好和生物兼容性好等一系列优点。
●样品参数:我们通过精确调控合成条件,可以较大批量合成出具有不同尺寸的三八面体金纳米晶,产物具有高度的尺寸均一性和单分散性,产率接近100%。三八面体金纳米晶分散在水溶液中,稳定剂是十六烷基三甲基氯化铵(CTAC) 。本产物稳定性长达十二个月以上。每批产物具有独立的透射电镜图和紫外可见光谱图等数据。
●应用领域:具有更多缺陷位点的高指数晶面使得三八面体金纳米晶具有更强的化学活性,使其在催化领域具有更大优势。此外,由于其等离激元特性、表面增强拉曼效应和生物兼容性,三八面体金纳米晶被应用在医疗诊断、电化学传感、锂氧电池和SERS检测等领域。
●样品浓度:光学密度(OD)值为2-5。注:OD定义为光程为1厘米时等离激元共振峰的消光度。
●储存条件:长期储存需在4摄氏度以及避光条件下。
●样品包装:10、20、50 mL塑料瓶。
●参考文献:
1.三八面体金纳米晶用于医疗诊断:Li, W.-P.; Liao, P.-Y.; Su, C.-H.; Yeh, C.-S., Formation of Oligonucleotide-Gated Silica Shell-Coated Fe3O4-Au Core–Shell Nanotrisoctahedra for Magnetically Targeted and Near-Infrared Light-Responsive Theranostic Platform. Journal of the American Chemical Society 2014, 136 (28), 10062-10075.
2.三八面体金纳米晶用于合成:Yu, Y.; Zhang, Q.; Liu, B.; Lee, J. Y., Synthesis of Nanocrystals with Variable High-Index Pd Facets through the Controlled Heteroepitaxial Growth of Trisoctahedral Au Templates. Journal of the American Chemical Society 2010, 132 (51), 18258-18265.
3.三八面体金纳米晶用于表面增强拉曼检测:Song, Y.; Miao, T.; Zhang, P.; Bi, C.; Xia, H.; Wang, D.; Tao, X., {331}-Faceted trisoctahedral gold nanocrystals: synthesis, superior electrocatalytic performance and highly efficient SERS activity. Nanoscale 2015, 7 (18), 8405-8415.
4.三八面体金纳米晶用于锂氧电池 : Su, D.; Dou, S.; Wang, G., Gold nanocrystals with variable index facets as highly effective cathode catalysts for lithium–oxygen batteries. NPG Asia Materials 2015, 7 (1), e155-e155.
5.三八面体金纳米晶用于电催化 : Liu, F.; Jiang, X.; Wang, H.-H.; Chen, C.; Yang, Y.-H.; Sheng, T.; Wei, Y.-S.; Zhao, X.-S.; Wei, L., Boosting Electrocatalytic Hydrazine Oxidation Reaction on High-Index Faceted Au Concave Trioctahedral Nanocrystals. ACS Sustainable Chemistry & Engineering 2022, 10 (2), 696-702.
6.三八面体金纳米晶用于电化学传感:Liu, Y.-C.; Su, Y.-M.; Chen, K.-J.; Huang, W.-C.; Kuo, Y.-L.; Lin, S. D., Electrocatalysis enhancement of a screen-printed carbon electrode by modification with trisoctahedral gold nanocrystals for H2O2 and NADH sensing application. Journal of Chemical Technology & Biotechnology 2017, 92 (9), 2460-2467.