https://doi.org/10.1140/epje/s10189-022-00227-w
Tips and Tricks - Soft Matter
Simple method to measure rheological properties of soft surfaces by a micro-needle contact
Analysis Technology Center, Fujifilm Corporation, 210 Nakanuma, 250-0193, Minamiashigara, Kanagawa, Japan
Received:
22
April
2022
Accepted:
23
August
2022
Published online:
14
September
2022
We developed a simple method to investigate rheological properties of soft surfaces, such as polymeric liquids and colloidal suspensions, by capturing the images of a metal micro-needle inserted into the surface. At contact, a meniscus-like deformation is formed on the surface. By relating the shape of the deformation to the balance of applied forces, local elasticity and viscosity just inside the surface are obtained. With a facile setup and rapid measurement process, the present method can be implemented to variety of systems, for instance, drying sessile drops and small volume of liquid confined in a capillary.
Supplementary Information The online version contains supplementary material available at https://doi.org/10.1140/epje/s10189-022-00227-w.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
