{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T06:14:12Z","timestamp":1777443252355,"version":"3.51.4"},"reference-count":70,"publisher":"SAGE Publications","issue":"8","license":[{"start":{"date-parts":[[2024,5,15]],"date-time":"2024-05-15T00:00:00Z","timestamp":1715731200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"FCT\/MCTES","award":["LA\/P\/0008\/2020 DOI 10.54499\/LA\/P\/0008\/2020"],"award-info":[{"award-number":["LA\/P\/0008\/2020 DOI 10.54499\/LA\/P\/0008\/2020"]}]},{"name":"FCT\/MCTES","award":["UIDB\/50006\/2020 DOI 10.54499\/UIDB\/50006\/2020"],"award-info":[{"award-number":["UIDB\/50006\/2020 DOI 10.54499\/UIDB\/50006\/2020"]}]},{"name":"FCT\/MCTES","award":["UIDP\/50006\/2020 DOI 10.54499\/UIDP\/50006\/2020"],"award-info":[{"award-number":["UIDP\/50006\/2020 DOI 10.54499\/UIDP\/50006\/2020"]}]},{"name":"FCT and FSE","award":["COVID\/BD\/151753\/2021"],"award-info":[{"award-number":["COVID\/BD\/151753\/2021"]}]},{"name":"FCT and FSE","award":["SFRH\/BD\/118566\/2016"],"award-info":[{"award-number":["SFRH\/BD\/118566\/2016"]}]},{"DOI":"10.13039\/100000001","name":"National Science Foundation","doi-asserted-by":"publisher","award":["CHE-2309879"],"award-info":[{"award-number":["CHE-2309879"]}],"id":[{"id":"10.13039\/100000001","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Appl Spectrosc"],"published-print":{"date-parts":[[2024,8]]},"abstract":"<jats:p>\n                    Tuning the 8-anilino-1-naphthalenesulfonic acid (ANS) structure usually requires harsh conditions and long reaction times, which can result in low yields. Herein, ANS was modified to form an ANS group of uniform materials based on organic salts (GUMBOS), prepared with simple metathesis reactions and distinct cations, namely tetrabutylammonium (N\n                    <jats:sub>4444<\/jats:sub>\n                    ), tetrahexylammonium (N\n                    <jats:sub>6666<\/jats:sub>\n                    ), and tetrabutylphosphonium (P\n                    <jats:sub>4444<\/jats:sub>\n                    ). These ANS-based GUMBOS were investigated as fluorescent probes for membrane binding studies with four proteins having distinct physicochemical properties. Liposomes of 1,2-dimyristoyl- sn-glycero-3-phosphocholine were employed as membrane models as a result of their ability to mimic the structure and chemical composition of cell membranes. Changes in fluorescence intensity were used to monitor protein binding to liposomes, and adsorption data were fitted to a Freundlich-like isotherm. It was determined that [N\n                    <jats:sub>4444<\/jats:sub>\n                    ][ANS] and [P\n                    <jats:sub>4444<\/jats:sub>\n                    ][ANS] GUMBOS have enhanced optical properties and lipophilicity as compared to parent ANS. As a result, these two GUMBOS were selected for subsequent protein-membrane binding studies. Both [N\n                    <jats:sub>4444<\/jats:sub>\n                    ][ANS] and [P\n                    <jats:sub>4444<\/jats:sub>\n                    ][ANS] GUMBOS and parent ANS independently reached membrane saturation within the same concentration range. Furthermore, distinct fluorescence responses were observed upon the addition of proteins to each probe, which demonstrates the impact of properties such as lipophilicity on the binding process. The relative maintenance of binding cooperativity and maximum fluorescence intensity suggests that proteins compete with ANS-based probes for the same membrane binding sites. Finally, this GUMBOS-based approach is simple, rapid, and involves relatively small amounts of reagents, making it attractive for high-throughput purposes. These results presented herein can also provide relevant information for designing GUMBOS with ameliorated properties.\n                  <\/jats:p>","DOI":"10.1177\/00037028241249768","type":"journal-article","created":{"date-parts":[[2024,5,15]],"date-time":"2024-05-15T10:21:30Z","timestamp":1715768490000},"page":"806-814","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Studies of Protein Binding to Biomimetic Membranes Using a Group of Uniform Materials Based on Organic Salts Derived From 8-Anilino-1-naphthalenesulfonic Acid"],"prefix":"10.1177","volume":"78","author":[{"given":"Ana M.O.","family":"Azevedo","sequence":"first","affiliation":[{"name":"LAQV, REQUIMTE, Departamento de Ci\u00eancias Qu\u00edmicas, Faculdade de Farm\u00e1cia, Universidade do Porto, Porto, Portugal"}]},{"given":"Cl\u00e1udia","family":"Nunes","sequence":"additional","affiliation":[{"name":"LAQV, REQUIMTE, Departamento de Ci\u00eancias Qu\u00edmicas, Faculdade de Farm\u00e1cia, Universidade do Porto, Porto, Portugal"}]},{"given":"T\u00e2nia","family":"Moniz","sequence":"additional","affiliation":[{"name":"LAQV, REQUIMTE, Departamento de Qu\u00edmica e Bioqu\u00edmica, Faculdade de Ci\u00eancias, Universidade do Porto, Porto, Portugal"},{"name":"LAQV, REQUIMTE, Instituto de Ci\u00eancias Biom\u00e9dicas Abel Salazar, Universidade do Porto, Porto, Portugal"}]},{"given":"Roc\u00edo L.","family":"P\u00e9rez","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana, USA"},{"name":"Department of Chemistry and Biochemistry, Georgia Southern University, Statesboro, Georgia, USA"}]},{"given":"Caitlan E.","family":"Ayala","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana, USA"}]},{"given":"Maria","family":"Rangel","sequence":"additional","affiliation":[{"name":"LAQV, REQUIMTE, Instituto de Ci\u00eancias Biom\u00e9dicas Abel Salazar, Universidade do Porto, Porto, Portugal"}]},{"given":"Salette","family":"Reis","sequence":"additional","affiliation":[{"name":"LAQV, REQUIMTE, Departamento de Ci\u00eancias Qu\u00edmicas, Faculdade de Farm\u00e1cia, Universidade do Porto, Porto, Portugal"}]},{"given":"Jo\u00e3o L.M.","family":"Santos","sequence":"additional","affiliation":[{"name":"LAQV, REQUIMTE, Departamento de Ci\u00eancias Qu\u00edmicas, Faculdade de Farm\u00e1cia, Universidade do Porto, Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5336-7653","authenticated-orcid":false,"given":"Isiah M.","family":"Warner","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6539-1741","authenticated-orcid":false,"given":"M. L\u00facia M.F.S.","family":"Saraiva","sequence":"additional","affiliation":[{"name":"LAQV, REQUIMTE, Departamento de Ci\u00eancias Qu\u00edmicas, Faculdade de Farm\u00e1cia, Universidade do Porto, Porto, 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