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Probing chemical transformation in picolitre volume aerosol droplets

Lookup NU author(s): Anatolij Miloserdov, Calum Day, Dr Ben Horrocks, Dr Toni Carruthers

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Abstract

© 2017 SPIE. We have demonstrated chemical transformation in single microscopic-sized aerosol droplets localised in optical tweezers. Droplets in situ are measured during chemical transformation processes of solvent exchange and solute transformation through an ion exchange reaction. Solvent exchange between deionised water and heavy water in aerosol droplets is monitored through observation of the OH and OD Raman stretches. A change in solute chemistry of aerosol is achieved through droplet coalescence events between calcium chloride and sodium carbonate to promote ion exchange. The transformation forming meta-stable and stable states of CaCO3 is observed and analysed using Gaussian peak decomposition to reveal polymorphs.


Publication metadata

Author(s): Miloserdov A, Day CPF, Rosario GL, Horrocks BR, Carruthers AE

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Proceedings of SPIE Nanoscience and Engineering: Optical Trapping and Optical Micromanipulation XIV

Year of Conference: 2017

Pages: 1034728

Online publication date: 06/08/2017

Acceptance date: 02/04/2016

ISSN: 0277-786X

Publisher: SPIE

URL: https://doi.org/10.1117/12.2273899

DOI: 10.1117/12.2273899

Library holdings: Search Newcastle University Library for this item

ISBN: 9781510611511


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