{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,24]],"date-time":"2026-03-24T23:02:11Z","timestamp":1774393331437,"version":"3.50.1"},"reference-count":31,"publisher":"Wiley","issue":"19","license":[{"start":{"date-parts":[[2022,6,24]],"date-time":"2022-06-24T00:00:00Z","timestamp":1656028800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["213555243"],"award-info":[{"award-number":["213555243"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["417278389"],"award-info":[{"award-number":["417278389"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Macromol. Rapid Commun."],"published-print":{"date-parts":[[2022,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>After intravenous administration of nanocarriers, plasma proteins may rapidly adsorb onto their surfaces. This process hampers the prediction of the nanocarriers\u2019 pharmacokinetics as it determines their physiological identity in a complex biological environment. Toward clinical translation it is therefore an essential prerequisite to investigate the nanocarriers\u2019 interaction with plasma proteins. Here, this work evaluates a highly \u201cPEGylated\u201d squaric ester\u2010based nanogel with inherent prolonged blood circulation properties. After incubation with human blood plasma, the nanogels are isolated by asymmetrical flow\u2010field flow fractionation. Multiangle light scattering measurements confirm the absence of significant size increases as well as aggregation upon plasma incubation. However, proteomic analyses by gel electrophoresis find minor absolute amounts of proteins (3 wt%), whereas label\u2010free liquid chromatography mass spectrometry identify 65 enriched proteins. Interestingly, the relative abundance of these proteins is almost similar to their proportion in pure native plasma. Due to the nanogels\u2019 hydrated and porous network morphology, it is concluded that the detected proteins rather result from passive diffusion into the nanogel network than from specific interactions at the plasma particle interface. Consequently, these results do not indicate a classical surface protein corona but rather reflect the highly outer and inner stealth\u2010like behavior of the porous hydrogel network.<\/jats:p>","DOI":"10.1002\/marc.202200318","type":"journal-article","created":{"date-parts":[[2022,6,10]],"date-time":"2022-06-10T14:49:41Z","timestamp":1654872581000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Squaric Ester\u2010Based Nanogels Induce No Distinct Protein Corona but Entrap Plasma Proteins into their Porous Hydrogel Network"],"prefix":"10.1002","volume":"43","author":[{"given":"Anne","family":"Huppertsberg","sequence":"first","affiliation":[{"name":"Max Planck Institute for Polymer Research  55128 Mainz Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christian","family":"Leps","sequence":"additional","affiliation":[{"name":"Institute for Immunology University Medical Center of Mainz  55131 Mainz Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Irina","family":"Alberg","sequence":"additional","affiliation":[{"name":"Department of Chemistry Johannes Gutenberg University Mainz  55128 Mainz Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christine","family":"Rosenauer","sequence":"additional","affiliation":[{"name":"Max Planck Institute for Polymer Research  55128 Mainz Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Svenja","family":"Morsbach","sequence":"additional","affiliation":[{"name":"Max Planck Institute for Polymer Research  55128 Mainz Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Katharina","family":"Landfester","sequence":"additional","affiliation":[{"name":"Max Planck Institute for Polymer Research  55128 Mainz 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