Related Experiment Video
Updated: Feb 11, 2026

Preparation of Giant Vesicles Encapsulating Microspheres by Centrifugation of a Water-in-oil Emulsion
Published on: January 24, 2017
Light-fuelled reversible expansion of spiropyran-based vesicles in water
Supaporn Kwangmettatam1, Tibor Kudernac
1Molecular Nanofabrication Group, MESA+ Institute for Nanotechnology, University of Twente, PO Box 207, 7500 AE Enschede, The Netherlands. t.kudernac@utwente.nl.
Abstract:
We present the design and synthesis of spiropyran-based dynamic vesicles, for which the building block is the amphiphilic merocyanine isomer. Under irradiation with visible light, the photo-conversion of the protonated and charged merocyanine to the neutral spiropyran form leads to the transient and reversible expansion of these vesicles.
Related Concept Videos
Water: A Bronsted-Lowry Acid and Base
States of Water
Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...
Heat and Free Expansion
Light Acquisition
Thermal Expansion
Reversible and Irreversible Processes

