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024 7 _ |a 10.1021/acs.langmuir.0c02464
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100 1 _ |a Loos, Jeanette N.
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245 _ _ |a Exploring the Tunable Optical and Mechanical Properties of Multicomponent Low-Molecular-Weight Gelators
260 _ _ |a Washington, DC
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|b ACS Publ.
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520 _ _ |a A class of amino acid-based low-molecular-weight gelators (LMWGs) was used for single and multicomponent gel studies to investigate their tunable optical properties and their self-assembly process. The optical properties of multicomponent gels were found to be easily tuned by changing the proportion of the components, varying from opaque to highly transparent gels as analyzed using ultraviolet–visible spectroscopy. This phenomenon allows tunability without introducing another variable into the system. Scanning electron microscopy, differential scanning calorimetry, and small-angle X-ray scattering (SAXS) were used to investigate the structures of the gels. It was found that because of the structural similarities of the molecules, the gelators favor coassembly packing over self-sorting. The emergence of transparency was ascribed to changes in the fiber diameters. Moreover, analysis of the SAXS data allowed us to compare the molecular order present in the gel phase with single-crystal X-ray diffraction (SCXRD) data. Our analysis suggests that the packing of molecules seen in the crystalline phase is translated into the gel network. This reveals that the structure of the crystalline phase seen through SCXRD is a useful tool to aid in understanding the molecular packing in the gel phase.
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700 1 _ |a Boott, Charlotte E.
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700 1 _ |a Hayward, Dominic W.
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700 1 _ |a Hum, Gabriel
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700 1 _ |a MacLachlan, Mark J.
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773 _ _ |a 10.1021/acs.langmuir.0c02464
|g Vol. 37, no. 1, p. 105 - 114
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|t Langmuir
|v 37
|y 2021
|x 0743-7463
856 4 _ |u https://juser.fz-juelich.de/record/906342/files/acs.langmuir.0c02464.pdf
856 4 _ |y Published on 2021-01-03. Available in OpenAccess from 2022-01-03.
|u https://juser.fz-juelich.de/record/906342/files/Mixed%20gel%20system%20in%20template%20V0.2_JL.pdf
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