Molecular self-assembly and patterning induced by sound waves. The case of gelation.
Recent findings evidence that cavitational and mechanical effects of ultrasound waves trigger molecular assembly and pattern formation, exemplified by organogels and ordered structures. Although sonication-assisted aggregation has become a well-established protocol, the science behind it is often overlooked. In this tutorial review various aspects of ultrasound-driven reactions are introduced, highlighting organic and metal coordination compounds, as well as recent applications focused on polymer structures. Given the importance of supramolecular assemblies, especially hydrogels, as biomaterials and vehicles for drug transport and delivery, sound waves thus provide a facile entry to new forms of soft matter and functionalized materials.
Cravotto
Giancarlo
G
Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via P. Giuria 9, I-10125 Torino, Italy. giancarlo.cravotto@unito.it
Cintas
Pedro
P
D020100:Hydrogels / Q000737:chemistry; D008670:Metals / Q000737:chemistry; D008956:Models, Chemical; D008958:Models, Molecular; D009930:Organic Chemicals / Q000737:chemistry; D044367:Phase Transition; D014465:Ultrasonics
D020100:Hydrogels; D008670:Metals; D009930:Organic Chemicals