A Small-Angle Neutron Scattering Environment for In-Situ Observation of Chemical Processes

Abstract A new sample environment for the observation of ongoing chemical reactions is introduced for small-angle neutron scattering (SANS) experiments which enables structural changes to be followed continuously across a wide Q-range in response to changes in the chemical environment. The approach...

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Autores principales:	Dominic W. Hayward, Leonardo Chiappisi, Sylvain Prévost, Ralf Schweins, Michael Gradzielski
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/06483333a6b04e5d9c142c180d278686
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spelling	oai:doaj.org-article:06483333a6b04e5d9c142c180d2786862021-12-02T11:40:16ZA Small-Angle Neutron Scattering Environment for In-Situ Observation of Chemical Processes10.1038/s41598-018-24718-z2045-2322https://doaj.org/article/06483333a6b04e5d9c142c180d2786862018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-24718-zhttps://doaj.org/toc/2045-2322Abstract A new sample environment for the observation of ongoing chemical reactions is introduced for small-angle neutron scattering (SANS) experiments which enables structural changes to be followed continuously across a wide Q-range in response to changes in the chemical environment. The approach is demonstrated and validated by performing single and multiple potentiometric titrations on an aqueous anionic surfactant solution (oligo-oxyethylene alkylether carboxylic acid in D2O) with addition times varying from 1 s to 2 h. It is shown that the continuous flow set-up offers considerable advantages over classical ‘static’ measurements with regards to sample throughput, compositional precision and the ability to observe fast structural transitions. Finally, the capabilities and ongoing optimisation of the sample environment are discussed with reference to potential applications in the fields of biology, colloidal systems and complex soft matter.Dominic W. HaywardLeonardo ChiappisiSylvain PrévostRalf SchweinsMichael GradzielskiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Dominic W. Hayward Leonardo Chiappisi Sylvain Prévost Ralf Schweins Michael Gradzielski A Small-Angle Neutron Scattering Environment for In-Situ Observation of Chemical Processes
description	Abstract A new sample environment for the observation of ongoing chemical reactions is introduced for small-angle neutron scattering (SANS) experiments which enables structural changes to be followed continuously across a wide Q-range in response to changes in the chemical environment. The approach is demonstrated and validated by performing single and multiple potentiometric titrations on an aqueous anionic surfactant solution (oligo-oxyethylene alkylether carboxylic acid in D2O) with addition times varying from 1 s to 2 h. It is shown that the continuous flow set-up offers considerable advantages over classical ‘static’ measurements with regards to sample throughput, compositional precision and the ability to observe fast structural transitions. Finally, the capabilities and ongoing optimisation of the sample environment are discussed with reference to potential applications in the fields of biology, colloidal systems and complex soft matter.
format	article
author	Dominic W. Hayward Leonardo Chiappisi Sylvain Prévost Ralf Schweins Michael Gradzielski
author_facet	Dominic W. Hayward Leonardo Chiappisi Sylvain Prévost Ralf Schweins Michael Gradzielski
author_sort	Dominic W. Hayward
title	A Small-Angle Neutron Scattering Environment for In-Situ Observation of Chemical Processes
title_short	A Small-Angle Neutron Scattering Environment for In-Situ Observation of Chemical Processes
title_full	A Small-Angle Neutron Scattering Environment for In-Situ Observation of Chemical Processes
title_fullStr	A Small-Angle Neutron Scattering Environment for In-Situ Observation of Chemical Processes
title_full_unstemmed	A Small-Angle Neutron Scattering Environment for In-Situ Observation of Chemical Processes
title_sort	small-angle neutron scattering environment for in-situ observation of chemical processes
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/06483333a6b04e5d9c142c180d278686
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A Small-Angle Neutron Scattering Environment for In-Situ Observation of Chemical Processes

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