Fractal-in-a-Sphere: Confined Self-Assembly of Fractal Silica Nanoparticles
| Autor: | Jinqing Jiao, Jie Tang, Chengzhong Yu, Jing Geng, Kevin S. Jack, Hao Song, Yang Liu, Jianye Fu, Ai Du, Zhengying Gu |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Fabrication General Chemical Engineering Physics::Optics Nanoparticle Nanotechnology 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Silica nanoparticles Fractal Materials Chemistry Self-assembly Snowflake 0210 nano-technology |
| Zdroj: | Chemistry of Materials. 32:341-347 |
| ISSN: | 1520-5002 0897-4756 |
| Popis: | Fractal objects such as snowflakes and trees are ubiquitous in nature. However, fractal nanoparticles with uniform morphology and controllable structures are difficult to make. Herein, using a fractal-in-a-sphere strategy, we report the confined self-assembly of fractal silica nanoparticles with tunable fractal generations and uniform sizes. One advantage of controllable fractal generations has been demonstrated in enzyme delivery for parasite oocyst control. The fractal silica nanoparticles exhibited better oocysticidal performance compared with nanoparticles of other structures due to combined effects of enhanced adhesion, penetration across the oocyst wall, and high local enzyme concentrations. This study paves the way for the fabrication of fractal silica nanoparticles with fine structures and versatile applications. |
| Databáze: | OpenAIRE |
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