In situ growth of fluorescent silicon nanocrystals in a monolithic microcapsule as a photostable, versatile platform
文献类型：期刊论文
| 作者 | Zhu, Guixian1,2; Huang, Yu3; Bhave, Gauri2; Wang, Yuzhen2; Hu, Zhongbo1; Liu, Xuewu2 |
| 刊名 | Nanoscale
 |
| 出版日期 | 2016 |
| 卷号 | 8期号:34页码:15645-15657 |
| ISSN号 | 2040-3364 |
| DOI | 10.1039/c6nr03829h |
| 通讯作者 | Liu, xuewu(xliu@houstonmethodist.org) |
| 英文摘要 | A facile, one-step method was developed for the in situ formation of fluorescent silicon nanocrystals (sinc) in a microspherical encapsulating matrix. the obtained sinc encapsulated polymeric microcapsules (sipm) possess uniform size (0.1-2.0 mu m), strong fluorescence, and nanoporous structure. a unique two stage, time dependent reaction was developed, as the growth of sinc was slower than the formation of polymeric microcapsules. the resulting sipm with increasing reaction time exhibited two levels of stability, and correspondingly, the release of sinc in aqueous media showed different behavior. with reaction time <1 h, the obtained low-density sipm (ld-sipm) as matrix microcapsules, would release encapsulated sinc on demand. with >1 h reaction time, resulting high-density sipm (hd-sipm) became stable sinc reservoirs. sipm exhibit stable photoluminescence. the porous structure and fluorescence quenching effects make sipm suitable for bioimaging, drug loading and sorption of heavy metals (hg2+ as shown) as an intrinsic indicator. sipm were able to reduce metal ions, forming sipm/metal oxide and sipm/metal hybrids, and their applications in bio-sensing and catalysis were also demonstrated. |
| WOS关键词 | QUANTUM DOTS ; CRYSTALLINE SILICON ; MESOPOROUS SILICON ; HIGHLY FLUORESCENT ; POROUS SILICON ; CANCER-THERAPY ; LABEL-FREE ; NANOPARTICLES ; SURFACE ; GLUTATHIONE |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS类目 | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000382053300026 |
| 出版者 | ROYAL SOC CHEMISTRY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2375642 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Liu, Xuewu |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Mat Sci & Optoelect, Beijing 100049, Peoples R China 2.Houston Methodist Res Inst, Dept Nanomed, Houston, TX 77030 USA 3.Univ South Dakota, Dept Biomed Engn, Sioux Falls, SD 57107 USA |
| 推荐引用方式 GB/T 7714 | Zhu, Guixian,Huang, Yu,Bhave, Gauri,et al. In situ growth of fluorescent silicon nanocrystals in a monolithic microcapsule as a photostable, versatile platform[J]. Nanoscale,2016,8(34):15645-15657. |
| APA | Zhu, Guixian,Huang, Yu,Bhave, Gauri,Wang, Yuzhen,Hu, Zhongbo,&Liu, Xuewu.(2016).In situ growth of fluorescent silicon nanocrystals in a monolithic microcapsule as a photostable, versatile platform.Nanoscale,8(34),15645-15657. |
| MLA | Zhu, Guixian,et al."In situ growth of fluorescent silicon nanocrystals in a monolithic microcapsule as a photostable, versatile platform".Nanoscale 8.34(2016):15645-15657. |
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来源：中国科学院大学
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