Some Problems of Nanomaterials in Bioanalytical Applications
文献类型：期刊论文
| 作者 | Song Yanchao1; Liu Junxiu2; Zhang Yangyang1; Shi Wen1; Ma Huimin1 |
| 刊名 | ACTA CHIMICA SINICA
 |
| 出版日期 | 2013-12-15 |
| 卷号 | 71期号:12页码:1607-1610 |
| 关键词 | Nanomaterials Cdte Quantum Dots Au Nanoparticles Carbon Nanodots Toxicity Microscopic Heterogeneity Environmental Susceptivity Bioanalysis |
| ISSN号 | 0567-7351 |
| DOI | 10.6023/A13080904 |
| 英文摘要 | By taking the three commonly used CdTe quantum dots (CdTe QDs), Au nanoparticles (Au NPs) and carbon nanodots (C-dots) as example, we have demonstrated and summarized some noteworthy problems of nanomaterials in bio-analytical applications. These problems mainly include the toxicity, microscopic heterogeneity and environmental susceptivity of nanomaterials, which had been separately discussed with different depths but unfortunately are often overlooked in practice. In the present work, a parallel comparative investigation was first made on cytotoxicity, which reveals that CdTe QDs can lead to the decrease of cell metabolic activity, cell shrinkage, and even cell death; Au NPs at a higher concentration (30 mu g/mL) decrease the metabolic activity of cells to a small extent; C-dots exert no obvious toxicity to live cells, showing good biocompatibility. These studies indicate that the relative toxicity of the three nanomaterials in their bare forms is CdTe QDs>>AuNPs>C-dots, which is further supported by the inhibition experiment on the growth of green gram sprouts. Second, the microscopic heterogeneity of nanomaterials was compared with that of resorufin (a small molecular fluorescent dye) by cell imaging experiments, which clearly shows that the distribution of nanomaterials in cells is much less uniform than that of small molecular probes. Besides, the heterogeneity of both size distribution and surface modification/property of nanomaterials is also unavoidable. Third, the environmental susceptivity of nanomaterials was studied, and the results showed that spectroscopic properties of the above three nanomaterials are all sensitive to the pH change of solution. Moreover, AuNPs are also rather susceptible to the ionic strength of solution. The above three problems should arouse high attention of researchers in some bioanalyses. In addition, the measures that we suggested in the paper may be helpful to solve these problems to some extent. |
| 语种 | 英语 |
| WOS记录号 | WOS:000329892400005 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/42215]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Song Yanchao |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Analyt Chem Living Biosyst, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.Peking Univ, Hosp 3, Dept Otorhinolaryngol, Beijing 100191, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song Yanchao,Liu Junxiu,Zhang Yangyang,et al. Some Problems of Nanomaterials in Bioanalytical Applications[J]. ACTA CHIMICA SINICA,2013,71(12):1607-1610. |
| APA | Song Yanchao,Liu Junxiu,Zhang Yangyang,Shi Wen,&Ma Huimin.(2013).Some Problems of Nanomaterials in Bioanalytical Applications.ACTA CHIMICA SINICA,71(12),1607-1610. |
| MLA | Song Yanchao,et al."Some Problems of Nanomaterials in Bioanalytical Applications".ACTA CHIMICA SINICA 71.12(2013):1607-1610. |
入库方式： OAI收割
来源：化学研究所
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