Lidocaine-loaded solid lipid microparticles (SLMPs) produced from gas-saturated solutions for wound applications

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Show simple item record López-Iglesias, Clara Quílez López, Cristina Barros, Joana Velasco Bayón, Diego Álvarez-Lorenzo, Carmen Jorcano Noval, José Luis Monteiro, Fernando J. García-González, Carlos A. 2021-03-15T14:57:31Z 2021-03-15T14:57:31Z 2020-09-12
dc.identifier.bibliographicCitation Pharmaceutics 2020, 12(9), 870, 16 pp.
dc.identifier.issn 1999-4923
dc.description This research was funded by Xunta de Galicia [ED431F 2016/010], MCIUN [RTI2018-094131-A-I00], Agrupación Estratégica de Materiales [AeMAT-BIOMEDCO2, ED431E 2018/08], Agencia Estatal de Investigación [AEI] and FEDER funds. C.A.G.-G. acknowledges to MINECO for a Ramón y Cajal Fellowship [RYC2014-15239]. This work was partially supported by Programa de Actividades de I+D entre Grupos de Investigación de la Comunidad de Madrid [S2018/BAA-4480, Biopieltec-CM], Programa Estatal de I+D+I Orientada a los Retos de la Sociedad [RTI2018-101627-B-I00] and Cátedra Fundación Ramón Areces.
dc.description.abstract The delivery of bioactive agents using active wound dressings for the management of pain and infections offers improved performances in the treatment of wound complications. In this work, solid lipid microparticles (SLMPs) loaded with lidocaine hydrochloride (LID) were processed and the formulation was evaluated regarding its ability to deliver the drug at the wound site and through the skin barrier. The SLMPs of glyceryl monostearate (GMS) were prepared with different LID contents (0, 1, 2, 4, and 10 wt.%) using the solvent-free and one-step PGSS (Particles from Gas-Saturated Solutions) technique. PGSS exploits the use of supercritical CO2 (scCO2) as a plasticizer for lipids and as pressurizing agent for the atomization of particles. The SLMPs were characterized in terms of shape, size, and morphology (SEM), physicochemical properties (ATR-IR, XRD), and drug content and release behavior. An in vitro test for the evaluation of the influence of the wound environment on the LID release rate from SLMPs was studied using different bioengineered human skin substitutes obtained by 3D-bioprinting. Finally, the antimicrobial activity of the SLMPs was evaluated against three relevant bacteria in wound infections (Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa). SLMPs processed with 10 wt.% of LID showed a remarkable performance to provide effective doses for pain relief and preventive infection effects.
dc.format.extent 16
dc.language.iso eng
dc.publisher MDPI
dc.rights © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
dc.rights This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY)
dc.rights Atribución 3.0 España
dc.title Lidocaine-loaded solid lipid microparticles (SLMPs) produced from gas-saturated solutions for wound applications
dc.type article
dc.subject.eciencia Biología y Biomedicina
dc.rights.accessRights openAccess
dc.relation.projectID Comunidad de Madrid. S2018/BAA-4480
dc.relation.projectID Gobierno de España. RTI2018-101627-B-I00
dc.relation.projectID Gobierno de España. RTI2018-094131-A-I00
dc.relation.projectID Gobierno de España. RYC2014-15239
dc.type.version publishedVersion
dc.identifier.publicationfirstpage 1
dc.identifier.publicationissue 9
dc.identifier.publicationlastpage 16
dc.identifier.publicationtitle Pharmaceutics
dc.identifier.publicationvolume 12
dc.identifier.uxxi AR/0000027380
dc.contributor.funder Comunidad de Madrid
dc.contributor.funder Ministerio de Economía y Competitividad (España)
dc.contributor.funder Ministerio de Ciencia, Innovación y Universidades (España)
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