Oxidized Quasi-Carbon Nitride Quantum Dots Inhibit Ice Growth
文献类型：期刊论文
| 作者 | Bai, Guoying1,2; Song, Zhiping3; Geng, Hongya1,2; Gao, Dong1,2; Liu, Kai1,2; Wu, Shuwang1,2; Rao, Wei4; Guo, Liangqia3; Wang, Jianjun1,2 |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2017-07-26 |
| 卷号 | 29期号:28 |
| 关键词 | Antifreeze Protein Mimics Ice-growth Inhibition Oxidized Carbon Nitride Quantum Dots Oxidized Quasi-carbon Nitride Quantum Dots |
| 英文摘要 | Antifreeze proteins (AFPs), a type of high-efficiency but expensive and often unstable biological antifreeze, have stimulated substantial interest in the search for synthetic mimics. However, only a few reported AFP mimics display thermal hysteresis, and general criteria for the design of AFP mimics remain unknown. Herein, oxidized quasi-carbon nitride quantum dots (OQCNs) are synthesized through an up-scalable bottom-up approach. They exhibit thermal-hysteresis activity, an ice-crystal shaping effect, and activity on ice-recrystallization inhibition. In the cryopreservation of sheep red blood cells, OQCNs improve cell recovery to more than twice that obtained by using a commercial cryoprotectant (hydroxyethyl starch) without the addition of any organic solvents. It is shown experimentally that OQCNs preferably bind onto the ice-crystal surface, which leads to the inhibition of ice-crystal growth due to the Kelvin effect. Further analysis reveals that the match of the distance between two neighboring tertiary N atoms on OQCNs with the repeated spacing of O atoms along the c-axis on the primary prism plane of ice lattice is critical for OQCNs to bind preferentially on ice crystals. Here, the application of graphitic carbon nitride derivatives for cryopreservation is reported for the first time. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/39091]  |
| 专题 | 化学研究所_绿色印刷实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Green Printing, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China 3.Fuzhou Univ, Coll Chem, Fuzhou 350116, Fujian, Peoples R China 4.Chinese Acad Sci, Tech Inst Phys Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Guoying,Song, Zhiping,Geng, Hongya,et al. Oxidized Quasi-Carbon Nitride Quantum Dots Inhibit Ice Growth[J]. ADVANCED MATERIALS,2017,29(28). |
| APA | Bai, Guoying.,Song, Zhiping.,Geng, Hongya.,Gao, Dong.,Liu, Kai.,...&Wang, Jianjun.(2017).Oxidized Quasi-Carbon Nitride Quantum Dots Inhibit Ice Growth.ADVANCED MATERIALS,29(28). |
| MLA | Bai, Guoying,et al."Oxidized Quasi-Carbon Nitride Quantum Dots Inhibit Ice Growth".ADVANCED MATERIALS 29.28(2017). |
入库方式： OAI收割
来源：化学研究所
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