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https://hdl.handle.net/2440/123696
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Type: | Journal article |
Title: | 2H and 4H silver colloidal suspension synthesis, as a new potential drug carrier |
Author: | Wojnicki, M. Tokarski, T. Hessel, V. Fitzner, K. Luty-Błocho, M. |
Citation: | Chemical Engineering Journal, 2019; 382:122922-1-122922-6 |
Publisher: | Elsevier |
Issue Date: | 2019 |
ISSN: | 1385-8947 1873-3212 |
Statement of Responsibility: | Marek Wojnicki, Tomasz Tokarski, Volker Hessel, Krzysztof Fitzner, Magdalena Luty-Błocho |
Abstract: | In this paper diffusion impact on the silver nanoparticles synthesis and their crystal structure is shown. For this purpose, comparative studies between continuous flow two-phase microdroplets systems vs. two-phase batch reactor were performed. Such two-phase configuration of the investigated system makes it possible to study the impact of mass transfer phenomenon on the nanoparticles formation process. In the case of two-phase microdroplets system, diffusion is replaced by convection, accelerated by interphase friction between water droplets and a continuous organic phase. It was concluded that under diffusion control it was possible to obtain silver nanoparticles with a hexagonal crystal structure. Moreover, for the first time using a chemical method, and diffusion rate-limiting step, the hexagonal structure 4H and 2H of Ag nanoparticles were synthesized. We suggest, that such hexagonal crystals can be applied as a smart drug delivery system, where the drug releases can be controlled by short light impulse. In effects, thermodynamically unstable 4H and 2H crystals transform to more dense-packed FCC structure. |
Keywords: | Droplets; microreactor; silver nanoparticles; DMAB; hexagonal crystal structure |
Rights: | © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license. |
DOI: | 10.1016/j.cej.2019.122922 |
Published version: | http://dx.doi.org/10.1016/j.cej.2019.122922 |
Appears in Collections: | Aurora harvest 4 Chemical Engineering publications |
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