Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/142117
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dc.contributor.authorHuerta-Viga, Adrianaen_US
dc.contributor.authorNguyen, Linh-Lanen_US
dc.contributor.authorAmirjalayer, Saeeden_US
dc.contributor.authorSim, Jamie Hung Nien_US
dc.contributor.authorZhang, Zhengyangen_US
dc.contributor.authorTan, Howe-Siangen_US
dc.date.accessioned2020-06-16T03:13:04Z-
dc.date.available2020-06-16T03:13:04Z-
dc.date.issued2018-
dc.identifier.citationHuerta-Viga, A., Nguyen, L.-L., Amirjalayer, S., Sim, J. H. N., Zhang, Z., & Tan, H.-S. (2018). Glass formation of a DMSO – water mixture probed with a photosynthetic pigment. Physical Chemistry Chemical Physics, 20(26), 17552-17556. doi:10.1039/c8cp03058hen_US
dc.identifier.issn1463-9076en_US
dc.identifier.urihttps://hdl.handle.net/10356/142117-
dc.description.abstractDespite their extensive industrial usage, glass-forming liquids are not fully understood, and methods to investigate their dynamical heterogeneity are sought after. Here we show how the appearance of a second component in the visible absorption spectrum of a photosynthetic pigment upon cooling can be used to probe the glass transition of a dimethylsulfoxide–water mixture. The changes in the relative ratio of the two components with respect to temperature follow a sigmoid curve, and we show that the second component arises due to protonation of the pigment at low temperatures. Furthermore, from visible transient absorption spectra we show that, unlike the first component, the dynamics of the second component slows down significantly at lower temperatures, suggesting that there are two distinct environments with fast and slow fluctuations. Our results therefore enable a new method to characterize the dynamical heterogeneity of glass-forming liquids.en_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.language.isoenen_US
dc.relation.ispartofPhysical Chemistry Chemical Physicsen_US
dc.rights© 2018 the Owner Societies (Published by Royal Society of Chemistry). All rights reserved.en_US
dc.subjectScience::Chemistryen_US
dc.titleGlass formation of a DMSO – water mixture probed with a photosynthetic pigmenten_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.identifier.doi10.1039/c8cp03058h-
dc.identifier.pmid29915826-
dc.identifier.scopus2-s2.0-85049625047-
dc.identifier.issue26en_US
dc.identifier.volume20en_US
dc.identifier.spage17552en_US
dc.identifier.epage17556en_US
dc.subject.keywordsPhotosynthetic Pigmenten_US
dc.subject.keywordsGlass Formationen_US
item.fulltextNo Fulltext-
item.grantfulltextnone-
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