Thermally Tunable Hydrogels Displaying Angle-Independent Structural Colors

We report the preparation of thermally tunable hydrogels displaying angle‐independent structural colors. The porous structures were formed with short‐range order using colloidal amorphous array templates and a small amount of carbon black (CB). The resultant porous hydrogels prepared using colloidal...

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Bibliographic Details
Published inAngewandte Chemie Vol. 127; no. 51; pp. 15588 - 15593
Main Authors Ohtsuka, Yumiko, Seki, Takahiro, Takeoka, Yukikazu
Format Journal Article
LanguageEnglish
German
Published Weinheim WILEY-VCH Verlag 14.12.2015
WILEY‐VCH Verlag
Wiley Subscription Services, Inc
Subjects
Amorphous structure
Arrays
Chemistry
Colloids
Diffusion
Hydrogels
Illumination
Nanostructure
Resultants
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Summary:We report the preparation of thermally tunable hydrogels displaying angle‐independent structural colors. The porous structures were formed with short‐range order using colloidal amorphous array templates and a small amount of carbon black (CB). The resultant porous hydrogels prepared using colloidal amorphous arrays without CB appeared white, whereas the hydrogels with CB revealed bright structural colors. The brightly colored hydrogels rapidly changed hues in a reversible manner, and the hues varied widely depending on the water temperature. Moreover, the structural colors were angle‐independent under diffusive lighting because of the isotropic nanostructure generated from the colloidal amorphous arrays. Farbige Hydrogele: Thermisch abstimmbare Hydrogele mit winkelunabhängiger Strukturfarbe wurden aus kolloidalen amorphen Templaten und kleinen Mengen Kohlenstoffruß hergestellt (siehe Bild). Die bunt gefärbten Hydrogele wechseln in Abhängigkeit von der Wassertemperatur schnell und reversibel ihren Farbton.
Bibliography:istex:64CDBEFA0715969D5989801A47ADC83CB5C27CC1
Funded Access
Grant-in-Aid for Scientific Research - No. 22107012
ArticleID:ANGE201507503
ark:/67375/WNG-Q4BSW2LH-C
Ministry of Education, Culture, Sports, Science and Technology (MEXT)
The Canon Foundation
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0044-8249
1521-3757
DOI:10.1002/ange.201507503