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Here we show how an inverse photonic glass architecture can enable the use of biocompatible bottlebrush block copolymers (BBCPs), which otherwise lack the refractive index contrast needed for a strong photonic response. A library of photonic pigments is produced from poly(norbornene\u2010<jats:italic>graft<\/jats:italic>\u2010polycaprolactone)\u2010<jats:italic>block<\/jats:italic>\u2010poly(norbornene\u2010<jats:italic>graft<\/jats:italic>\u2010polyethylene glycol), with the color tuned via either the BBCP molecular weight or the processing temperature upon microparticle fabrication. The structure\u2013optic relationship between the 3D porous morphology of the microparticles and their complex optical response is revealed by both an analytical scattering model and 3D finite\u2010difference time domain (FDTD) simulations. Combined, this allows for strategies to enhance the color purity to be proposed and realized with our biocompatible BBCP system.<\/jats:p>","DOI":"10.1002\/anie.202206562","type":"journal-article","created":{"date-parts":[[2022,6,20]],"date-time":"2022-06-20T16:11:56Z","timestamp":1655741516000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Deconvoluting the Optical Response of Biocompatible Photonic Pigments"],"prefix":"10.1002","volume":"61","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0331-8271","authenticated-orcid":false,"given":"Zhen","family":"Wang","sequence":"first","affiliation":[{"name":"Melville Laboratory for Polymer Synthesis Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5812-8440","authenticated-orcid":false,"given":"Chun Lam Clement","family":"Chan","sequence":"additional","affiliation":[{"name":"Melville Laboratory for Polymer Synthesis Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4523-4199","authenticated-orcid":false,"given":"Johannes S.","family":"Haataja","sequence":"additional","affiliation":[{"name":"Melville Laboratory for Polymer Synthesis Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0977-0389","authenticated-orcid":false,"given":"Lukas","family":"Schertel","sequence":"additional","affiliation":[{"name":"Melville Laboratory for Polymer Synthesis Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK"},{"name":"Department of Physics University of Fribourg Chemin du Mus\u00e9e 3 1700 Fribourg Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2132-9054","authenticated-orcid":false,"given":"Ruiting","family":"Li","sequence":"additional","affiliation":[{"name":"Melville Laboratory for Polymer Synthesis Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2427-2740","authenticated-orcid":false,"given":"Gea T.","family":"van de Kerkhof","sequence":"additional","affiliation":[{"name":"Melville Laboratory for Polymer Synthesis Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8032-7166","authenticated-orcid":false,"given":"Oren A.","family":"Scherman","sequence":"additional","affiliation":[{"name":"Melville Laboratory for Polymer Synthesis Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4096-9161","authenticated-orcid":false,"given":"Richard M.","family":"Parker","sequence":"additional","affiliation":[{"name":"Melville Laboratory for Polymer Synthesis Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0664-1418","authenticated-orcid":false,"given":"Silvia","family":"Vignolini","sequence":"additional","affiliation":[{"name":"Melville Laboratory for Polymer Synthesis Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2022,7,13]]},"reference":[{"key":"e_1_2_7_1_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja908379q"},{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1213055109"},{"key":"e_1_2_7_3_1","first-page":"1764","volume":"13","author":"Song D. 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