2017
DOI: 10.1073/pnas.1701092114
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Deformable and conformal silk hydrogel inverse opal

Abstract: Photonic crystals (PhCs) efficiently manipulate photons at the nanoscale. Applying these crystals to biological tissue that has been subjected to large deformation and humid environments can lead to fascinating bioapplications such as in vivo biosensors and artificial ocular prostheses. These applications require that these PhCs have mechanical durability, deformability, and biocompatibility. Herein, we introduce a deformable and conformal silk hydrogel inverse opal (SHIO); the photonic lattice of this 3D PhC … Show more

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Cited by 83 publications
(49 citation statements)
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“… Min et al . ( 22 ) B. mori ; 30 min; erosslinked with stilbene; Elastic hydrogel Prosthesis as photonic crystals In vitro ; tested optical response in different media and mechanical stresses. Abdel-Naby et al .…”
Section: Introductionmentioning
confidence: 99%
See 2 more Smart Citations
“… Min et al . ( 22 ) B. mori ; 30 min; erosslinked with stilbene; Elastic hydrogel Prosthesis as photonic crystals In vitro ; tested optical response in different media and mechanical stresses. Abdel-Naby et al .…”
Section: Introductionmentioning
confidence: 99%
“…Crosslinked silk hydrogels can be engineered to mimic nature’s photonic crystals. Min and colleagues evaluated a silk-based crosslinked hydrogel as an ocular prosthesis for high-technology applications that include night vision, infrared vision and in vivo biosensors ( 22 ) (Fig. 3 ).…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…[118,119] Inverse opals made from stimuli responsive polymers (e. g., hydrogels) have variable optical properties that respond to changes in humidity [120,121] or other material-specific environmental triggers. [109,122] The tunable structural color of these PMs is applicable to optical prostheses, [123] passive humidity [120,121] and strain sensing, [124,125] and chemical detection. [126,127] [104].…”
Section: Sacrificial Mastersmentioning
confidence: 99%
“…In recent years, various micro-and nanofabrication technologies have been utilized to transform a waterbased suspension of silk protein into all sorts of final material formats with periodic or aperiodic micro/nanopatterns through regulating silk-fibroin self-assembly and the crystalline state ( Fig. 1A) (12)(13)(14)(15)(16)(17)(18)(19)(20)(21). In the majority of cases, the resulting patterned structures were stable and largely insensitive to environmental fluctuations.…”
mentioning
confidence: 99%