<> <http://www.w3.org/2000/01/rdf-schema#comment> "The repository administrator has not yet configured an RDF license."^^<http://www.w3.org/2001/XMLSchema#string> . <> <http://xmlns.com/foaf/0.1/primaryTopic> <https://discovery.ucl.ac.uk/id/eprint/10094819> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/ontology/bibo/AcademicArticle> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/ontology/bibo/Article> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://purl.org/dc/terms/title> "Topical delivery of 3-O-ethyl L-ascorbic acid from complex solvent systems"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://purl.org/ontology/bibo/abstract> "3-O-ethyl l-ascorbic acid (EA), an ether derivative of Vitamin C, is widely used in skincare formulations. Previously, we reported the effects of neat solvents on EA percutaneous absorption and observed that 0.6–7.5% of the applied EA was delivered through the skin over 24 h. In this work, we designed complex formulations using combinations of solvents that may act synergistically and examined their impact on EA permeation in porcine skin in vitro under finite dose conditions. Binary combinations of propylene glycol (PG) with propylene glycol monolaurate (PGML) were effective in enhancing skin permeation of EA compared with individual solvents (p < 0.05). Combining PGML with 1,2-hexanediol (HEX) did not result in significantly higher EA permeation compared with the neat solvents (p > 0.05). Addition of the volatile solvent isopropyl alcohol (IPA) to PG solutions also did not improve EA skin delivery compared with neat PG. Ternary solvent systems containing PG:PGML were subsequently prepared by the addition of a lipophilic solvent, either isopropyl myristate (IPM), medium-chain triglycerides (MCT) or isostearyl isostearate (ISIS). The optimum vehicle, PG:PGML:IPM, promoted up to 70.9% skin delivery of EA. The PG:PGML:ISIS vehicles also promoted EA permeation across the skin, but to a significantly lesser extent than the IPM-containing vehicles. No enhancement of EA delivery was noted for the PG:PGML:MCT mixtures. These results will inform the development of targeted formulations for EA in the future."^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://purl.org/dc/terms/date> "2020" . <https://discovery.ucl.ac.uk/id/document/1089094> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/ontology/bibo/Document> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://purl.org/ontology/bibo/volume> "88" . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://purl.org/ontology/bibo/issue> "2" . <https://discovery.ucl.ac.uk/id/publication/ext-22180532> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/ontology/bibo/Collection> . <https://discovery.ucl.ac.uk/id/publication/ext-22180532> <http://xmlns.com/foaf/0.1/name> "Scientia Pharmaceutica"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://purl.org/dc/terms/isPartOf> 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<http://purl.org/dc/terms/creator> <https://discovery.ucl.ac.uk/id/person/ext-d723ac509a24fb0eef7a4141b7862539> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://purl.org/ontology/bibo/authorList> <https://discovery.ucl.ac.uk/id/eprint/10094819#authors> . <https://discovery.ucl.ac.uk/id/eprint/10094819#authors> <http://www.w3.org/1999/02/22-rdf-syntax-ns#_4> <https://discovery.ucl.ac.uk/id/person/ext-d723ac509a24fb0eef7a4141b7862539> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://purl.org/dc/terms/creator> <https://discovery.ucl.ac.uk/id/person/ext-42fcbef2d0c1985f0499ac4605099b51> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://purl.org/ontology/bibo/authorList> <https://discovery.ucl.ac.uk/id/eprint/10094819#authors> . <https://discovery.ucl.ac.uk/id/eprint/10094819#authors> <http://www.w3.org/1999/02/22-rdf-syntax-ns#_5> <https://discovery.ucl.ac.uk/id/person/ext-42fcbef2d0c1985f0499ac4605099b51> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://purl.org/dc/terms/creator> <https://discovery.ucl.ac.uk/id/person/ext-0806a6a38f3bac9199edd9357b1d59ab> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://purl.org/ontology/bibo/authorList> <https://discovery.ucl.ac.uk/id/eprint/10094819#authors> . <https://discovery.ucl.ac.uk/id/eprint/10094819#authors> <http://www.w3.org/1999/02/22-rdf-syntax-ns#_6> <https://discovery.ucl.ac.uk/id/person/ext-0806a6a38f3bac9199edd9357b1d59ab> . <https://discovery.ucl.ac.uk/id/person/ext-9d50ff86e38f34020fb7372d10d12c72> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Person> . <https://discovery.ucl.ac.uk/id/person/ext-9d50ff86e38f34020fb7372d10d12c72> <http://xmlns.com/foaf/0.1/givenName> "F"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-9d50ff86e38f34020fb7372d10d12c72> <http://xmlns.com/foaf/0.1/familyName> "Iliopoulos"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-9d50ff86e38f34020fb7372d10d12c72> <http://xmlns.com/foaf/0.1/name> "F Iliopoulos"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-0806a6a38f3bac9199edd9357b1d59ab> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Person> . <https://discovery.ucl.ac.uk/id/person/ext-0806a6a38f3bac9199edd9357b1d59ab> <http://xmlns.com/foaf/0.1/givenName> "ME"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-0806a6a38f3bac9199edd9357b1d59ab> <http://xmlns.com/foaf/0.1/familyName> "Lane"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-0806a6a38f3bac9199edd9357b1d59ab> <http://xmlns.com/foaf/0.1/name> "ME Lane"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-f1a681b0a7f01c4659f05f91af9a5bb6> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Person> . <https://discovery.ucl.ac.uk/id/person/ext-f1a681b0a7f01c4659f05f91af9a5bb6> <http://xmlns.com/foaf/0.1/givenName> "ASM"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-f1a681b0a7f01c4659f05f91af9a5bb6> <http://xmlns.com/foaf/0.1/familyName> "Monjur Al Hossain"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-f1a681b0a7f01c4659f05f91af9a5bb6> <http://xmlns.com/foaf/0.1/name> "ASM Monjur Al Hossain"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-42fcbef2d0c1985f0499ac4605099b51> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Person> . <https://discovery.ucl.ac.uk/id/person/ext-42fcbef2d0c1985f0499ac4605099b51> <http://xmlns.com/foaf/0.1/givenName> "RA"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-42fcbef2d0c1985f0499ac4605099b51> <http://xmlns.com/foaf/0.1/familyName> "Lucas"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-42fcbef2d0c1985f0499ac4605099b51> <http://xmlns.com/foaf/0.1/name> "RA Lucas"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-5765b05e12a68692267b22efcb5fbcd7> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Person> . <https://discovery.ucl.ac.uk/id/person/ext-5765b05e12a68692267b22efcb5fbcd7> <http://xmlns.com/foaf/0.1/givenName> "BC"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-5765b05e12a68692267b22efcb5fbcd7> <http://xmlns.com/foaf/0.1/familyName> "Sil"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-5765b05e12a68692267b22efcb5fbcd7> <http://xmlns.com/foaf/0.1/name> "BC Sil"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-d723ac509a24fb0eef7a4141b7862539> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Person> . <https://discovery.ucl.ac.uk/id/person/ext-d723ac509a24fb0eef7a4141b7862539> <http://xmlns.com/foaf/0.1/givenName> "DJ"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-d723ac509a24fb0eef7a4141b7862539> <http://xmlns.com/foaf/0.1/familyName> "Moore"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/person/ext-d723ac509a24fb0eef7a4141b7862539> <http://xmlns.com/foaf/0.1/name> "DJ Moore"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://eprints.org/ontology/EPrint> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://eprints.org/ontology/ArticleEPrint> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://purl.org/dc/terms/isPartOf> <https://discovery.ucl.ac.uk/id/repository> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://eprints.org/ontology/hasDocument> <https://discovery.ucl.ac.uk/id/document/1089094> . <https://discovery.ucl.ac.uk/id/document/1089094> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://eprints.org/ontology/Document> . <https://discovery.ucl.ac.uk/id/document/1089094> <http://www.w3.org/2000/01/rdf-schema#label> "Topical delivery of 3-O-ethyl L-ascorbic acid from complex solvent systems (Text)"^^<http://www.w3.org/2001/XMLSchema#string> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://purl.org/dc/elements/1.1/hasVersion> <https://discovery.ucl.ac.uk/id/document/1089094> . <https://discovery.ucl.ac.uk/id/eprint/10094819> <http://eprints.org/ontology/hasPublished> <https://discovery.ucl.ac.uk/id/document/1089094> . <https://discovery.ucl.ac.uk/id/document/1089094> <http://eprints.org/ontology/hasFile> <https://discovery.ucl.ac.uk/id/eprint/10094819/11/scipharm-88-00019-v3.pdf> . 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