Directed Assembly of Soft Colloids through Rapid Solvent Exchange.
Directed Assembly of Soft Colloids through Rapid Solvent Exchange.
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DOI：
10.1021/acsnano.5b06890
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发表时间：
2016-01
期刊：
影响因子：
17.1
通讯作者：
A. Nikoubashman;Victoria E Lee;C. Sosa;R. Prud’homme;Rodney D. Priestley;A. Panagiotopoulos
中科院分区：
文献类型：
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作者：
A. Nikoubashman;Victoria E Lee;C. Sosa;R. Prud’homme;Rodney D. Priestley;A. Panagiotopoulos
我们研究了软纳米粒子的定向组装，通过快速微观混合的聚合物在溶液中与非溶剂。进行实验和计算机模拟来阐明基本的物理过程，并研究各种工艺参数的作用。特别地，我们发现，当水用作非溶剂时，不需要外部稳定剂或带电端基来保持胶体彼此分离。此外，纳米颗粒的尺寸可以通过混合速率和聚合物溶液与非溶剂之间的比例来可靠地调节。我们的研究结果表明，这种机制是非常有前途的大规模制造的大小均匀的胶体颗粒，使用各种各样的聚合物进料。
We studied the directed assembly of soft nanoparticles through rapid micromixing of polymers in solution with a nonsolvent. Both experiments and computer simulations were performed to elucidate the underlying physics and to investigate the role of various process parameters. In particular, we discovered that no external stabilizing agents or charged end groups are required to keep the colloids separated from each other when water is used as the nonsolvent. Furthermore, the size of the nanoparticles can be reliably tuned through the mixing rate and the ratio between polymer solution and nonsolvent. Our results demonstrate that this mechanism is highly promising for the mass fabrication of uniformly sized colloidal particles, using a wide variety of polymeric feed materials.