glucose | 115945-70-5

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: glucose
• 英文别名: 2-methyl-D-2-deoxy-glucose；(2R,3R,4S,5R)-3,4,5,6-tetrahydroxy-2-methylhexanal
• CAS: 115945-70-5
• 化学式: C₇H₁₄O₅
• 分子量: 178.185
• InChiKey: CNWBTZYTRXYJLZ-BDVNFPICSA-N

物化性质

• 沸点：
  441.0±45.0 °C(Predicted)
• 密度：
  1.340±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -2.3
• 重原子数：
  12
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  98
• 氢给体数：
  4
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  glucose 反应 12.0h， 生成 甲烷
  参考文献：
  名称：

  Improved capacitance of NiCo2O4/carbon composite resulted from carbon matrix with multilayered graphene

  摘要：

  The optimized electric and ionic conductivity of metal oxides with pseudo-capacitive properties can greatly improve their electrochemical performances and can effectively amplify their applications in super-capacitors. Carbon spheres with multilayered graphene formed in their matrix are prepared by annealing them with sodium metal and they are combined with NiCo2O4 spheres by a simple hydro-thermal treatment. Structures and electrochemical performances of resulted samples are examined with X-ray diffraction, Raman scattering spectra, X-ray photoelectron spectroscopy, infrared spectroscopy, electron microscopy, gas physisorption, cyclic voltammetry and electrochemical impedance spectra, respectively. The largest specific capacitance of resulted composites is measured about 920 F g(-1) at 1 A g(-1), which is about 3.7 times larger than that of pure carbon spheres and 2.8 times larger than that of pure NiCo2O4 spheres. The formation of multilayered graphene in the matrix of carbon spheres not only increases the high specific capacitance based on electric double layers, but also makes metal oxides combined with them display greatly increased pseudo-capacitance. The electric and ionic conductivity of resulted composites with various weight ratios of NiCo2O4 and carbon spheres are respectively investigated and their effects on their electrochemical performances are also discussed. (C) 2018 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.electacta.2018.10.110

文献信息

• Microbial transformation of curcumin by<i>Rhizopus chinensis</i>
  作者：Xing Zhang、Min Ye、Rui Li、Jun Yin、De-An Guo

  DOI：10.3109/10242422.2010.532870

  日期：2010.12

  Curcumin (1) is a potent antioxidant and antitumor natural product. In spite of its efficacy and safety, its clinical use is hindered mainly by poor water solubility and bioavailability. Structural modification to introduce hydrophilic functions is a promising approach to resolve this problem. In the present study we first found that curcumin could be efficiently converted into glucosides by filamentous fungi including Rhizopus chinensis IFFI 03043, Absidia coerulea AS 3.3389 and Cunninghamella elegans AS 3.1207. Curcumin 4'-O-beta-D-glucoside (2), together with hexahydrocurcumin (3), was isolated from a preparative-scale biotransformation with R. chinensis IFFI 03043 and characterized fully by NMR and MS. A time-course study revealed that curcumin could be efficiently converted into curcumin 4'-O-beta-D-glucoside within 8 h when administered at 0.05 mmol L-1 and the productivity was 57%. Additionally, the biotransformation products of curcumin by different fungal strains were analyzed by LC/MS. At least 15 metabolites were detected, and the predominant biotransformation reaction was glucosylation. This study provides a simple, efficient and less expensive approach for the preparation of curcumin glucosides. The introduction of the glucosyl function might be able to enhance the bioavailability of curcumin.
• Improved capacitance of NiCo2O4/carbon composite resulted from carbon matrix with multilayered graphene
  作者：Zijie Xu、Liu Yang、Qiaoran Jin、Zhonghua Hu

  DOI：10.1016/j.electacta.2018.10.110

  日期：2019.2

  The optimized electric and ionic conductivity of metal oxides with pseudo-capacitive properties can greatly improve their electrochemical performances and can effectively amplify their applications in super-capacitors. Carbon spheres with multilayered graphene formed in their matrix are prepared by annealing them with sodium metal and they are combined with NiCo2O4 spheres by a simple hydro-thermal treatment. Structures and electrochemical performances of resulted samples are examined with X-ray diffraction, Raman scattering spectra, X-ray photoelectron spectroscopy, infrared spectroscopy, electron microscopy, gas physisorption, cyclic voltammetry and electrochemical impedance spectra, respectively. The largest specific capacitance of resulted composites is measured about 920 F g(-1) at 1 A g(-1), which is about 3.7 times larger than that of pure carbon spheres and 2.8 times larger than that of pure NiCo2O4 spheres. The formation of multilayered graphene in the matrix of carbon spheres not only increases the high specific capacitance based on electric double layers, but also makes metal oxides combined with them display greatly increased pseudo-capacitance. The electric and ionic conductivity of resulted composites with various weight ratios of NiCo2O4 and carbon spheres are respectively investigated and their effects on their electrochemical performances are also discussed. (C) 2018 Elsevier Ltd. All rights reserved.