Spatial structuring of a supramolecular hydrogel by using a visible-light triggered catalyst.
Angew Chem Int Ed Engl
; 54(3): 998-1001, 2015 Jan 12.
Article
en En
| MEDLINE
| ID: mdl-25385283
ABSTRACT
Spatial control over the self-assembly of synthetic molecular fibers through the use of light-switchable catalysts can lead to the controlled formation of micropatterns made up of hydrogel structures. A photochromic switch, capable of reversibly releasing a proton upon irradiation, can act as a catalyst for inâ
situ chemical bond formation between otherwise soluble building blocks, thereby leading to fiber formation and gelation in water. The use of a photoswitchable catalyst allows control over the distribution as well as the mechanical properties of the hydrogel material. By using homemade photomasks, spatially structured hydrogels were formed starting from bulk solutions of small molecule gelator precursors through light-triggered local catalyst activation.
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Colección:
01-internacional
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MEDLINE
Idioma:
En
Revista:
Angew Chem Int Ed Engl
Año:
2015
Tipo del documento:
Article