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KAUST DepartmentWater Desalination and Reuse Research Center (WDRC)
Biological and Environmental Sciences and Engineering (BESE) Division
Imaging and Characterization Core Lab
Environmental Science and Engineering Program
Advanced Nanofabrication, Imaging and Characterization Core Lab
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AbstractLiquid droplets encapsulated by self-organized hydrophobic particles at the liquid/air interface - liquid marbles - are prepared by encapsulating water droplets with novel core/shell-structured responsive magnetic particles, consisting of a responsive block copolymer-grafted mesoporous silica shell and magnetite core (see figure; P2VP-b-PDMS: poly(2-vinylpyridine-b- dimethylsiloxane)). Desirable properties of the liquid marbles include that they rupture upon ultraviolet illumination and can be remotely manipulated by an external magnetic field. 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
CitationZhang L, Cha D, Wang P (2012) Remotely Controllable Liquid Marbles. Advanced Materials 24: 4756-4760. doi:10.1002/adma.201201885.
PubMed Central IDPMC3546392
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Except where otherwise noted, this item's license is described as Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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Effects of Bonding Types and Functional Groups on CO 2 Capture using Novel Multiphase Systems of Liquid-like Nanoparticle Organic Hybrid MaterialsLin, Kun-Yi Andrew; Park, Ah-Hyung Alissa (American Chemical Society (ACS), 2011-08)Novel liquid-like nanoparticle organic hybrid materials (NOHMs) which possess unique features including negligible vapor pressure and a high degree of tunability were synthesized and their physical and chemical properties as well as CO 2 capture capacities were investigated. NOHMs can be classified based on the synthesis methods involving different bonding types, the existence of linkers, and the addition of task-specific functional groups including amines for CO 2 capture. As a canopy of polymeric chains was grafted onto the nanoparticle cores, the thermal stability of the resulting NOHMs was improved. In order to isolate the entropy effect during CO 2 capture, NOHMs were first prepared using polymers that do not contain functional groups with strong chemical affinity toward CO 2. However, it was found that even ether groups on the polymeric canopy contributed to CO 2 capture in NOHMs via Lewis acid-base interactions, although this effect was insignificant compared to the effect of task-specific functional groups such as amine. In all cases, a higher partial pressure of CO 2 was more favorable for CO 2 capture, while a higher temperature caused an adverse effect. Multicyclic CO 2 capture tests confirmed superior recyclability of NOHMs and NOHMs also showed a higher selectivity toward CO 2 over N 2O, O 2 and N 2. © 2011 American Chemical Society.
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