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Volume 3, Issue 4 (Suppl) Polym Sci
ISSN: 2471-9935 Polym Sci, an open access journal
October 12-13, 2017 Osaka, Japan
Annual Meeting on
Biopolymers and Drug Delivery Systems
Biopolymers Meeting 2017
October 12-13 2017
Page 69
Tunable angle dependent/independent structural color of hydrogel by modulating lamellar structure
Md Anamul Haque1, 2, Kei Mito1, Takayuki Kurokawa 1, Tasuku Nakajima1, Takayuki Nonoyama1, Ilyas Muhammad1 and Jian Ping Gong1
1Hokkaido University, Japan
2University of Dhaka, Bangladesh
In this paper, we report tunable angle dependence of stimuli responsive photonic hydrogels containing multi-lamellar structure
of alternative rigid polymeric platelets of high refractive index and ductile polymer matrix of low refractive index. Therefore, the
refractive index variation and periodic lamellar spacing satisfies the Bragg’s law to diffract visible light and the gel exhibits magnificent
structural color. The packing geometry of periodic multi-lamellae of the photonic crystal is fabricated from flat-lamellae to cylindrical
lamellae. 1D photonic crystalline lamellar sheet domains forms a rectangular sheet hydrogel in which the lamellar sheets aligned
periodically parallel to the top surface. On the other hand, cylindrical rod-like colored gel is achieved by arranging periodic multi-
cylinder packing of the lamellar domains. The cylindrical photonic hydrogel exhibits angle independent color whereas the sheet
hydrogel reveals strong angle dependency. A rocking curve has been constructed to justify the tunable angle dependency of the multi-
lamellar hydrogel. The tunable angle dependency of this photonic material could potentially benefits light modulation, visualization,
optical sensing and display technologies.
Polym Sci 2017, 3:4
DOI: 10.4172/2471-9935-C1-006