US 20190187331A1 ( 19) United States (12 ) Patent Application Publication (10 ) Pub. No. : US 2019 /0187331 A1 Omenetto et al. (43 ) Pub . Date : Jun . 20 , 2019 (54 ) PATTERNED SILK INVERSE OPAL Publication Classification PHOTONIC CRYSTALS WITH TUNABLE , (51 ) Int. Cl. GEOMETRICALLY DEFINED STRUCTURAL GO2B 1 / 00 (2006 . 01 ) COLOR C30B 29 /58 ( 2006 .01 ) B33Y 70 / 00 ( 2006 .01 ) (71 ) Applicant: Trustees of Tufts College , Medford , B29D 11 /00 ( 2006 .01 ) MA (US ) C08H 1/ 00 ( 2006 .01 ) (52 ) U . S . CI. (72 ) Inventors : Fiorenzo G . Omenetto , Lexington , MA CPC G02B 1/ 005 (2013 . 01 ); C30B 29 /58 (US ) ; Yu Wang , Medford , MA (US ) (2013 .01 ) ; B33Y 10 /00 (2014 . 12 ) ; B29D 11 /0074 ( 2013 .01 ) ; C08H 1 /00 ( 2013 .01 ) ; (21 ) Appl . No .: 16 /319 , 466 B33Y 70 /00 (2014 . 12 ) (57 ) ABSTRACT ( 22 ) PCT Filed : Aug. 1, 2017 The present disclosure relates to patterned photonic crystals . Provided photonic crystals are large scale silk inverse opals PCT/ US2017 / 044953 with tunable , geometrically defined structural color . Pro ( 86 ) PCT No .: vided photonic crystals exhibit structural color or a photonic $ 371 ( c )( 1 ) , band gap (“ PBG ” ) . Provided photonic crystals are is found ( 2 ) Date : Jan . 21, 2019 to be highly sensitive to water vapor and UV irradiation . Provided multicolored photonic macro - or micro - patterns are shown by selectively applying water vapor or UV Related U .S . Application Data irradiation through a shadow mask . The present disclosure (60 ) Provisional application No . 62 /369 , 630 , filed on Aug . also provides methods for making and using the same. 1 , 2016 . Specification includes a Sequence Listing .
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KIKISIKAN IVIRANI WS SEK KORAKVESTAVRAWKIA VALAIKU TAKTNAh KVINI w KIEL LAUNCH VIRTUAL CATEVE 500 nm 500 nm KANAKASIKVISININ BATAINA TK2KABSSTRAAT ERRENTALKUTCHES WHOVA OM BA ERKO WWURUKAVIK BODIKUSKIKKININKININKARASAASASKINERCUTIARA V KRAINIANW ASISWA
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Absorbance 1700 Patent Application Publication Jun . 20 , 2019 Sheet 4 of 22 US 2019 /0187331 A1
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