1
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Valdes O, Ali A, Carrasco-Sánchez V, Cabrera-Barjas G, Duran-Lara E, Ibrahim M, Ahmad S, Moreno R, Concepción O, de la Torre AF, Abrar M, Morales-Quintana L, Abril D. Ugi efficient synthesis of novel N-alkylated lipopeptides, antimicrobial properties and computational studies in Staphylococcus aureus via MurD antibacterial target. Comput Biol Chem 2023; 106:107932. [PMID: 37487249 DOI: 10.1016/j.compbiolchem.2023.107932] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/13/2023] [Accepted: 07/18/2023] [Indexed: 07/26/2023]
Abstract
Lipopeptides are medicinally essential building blocks with strong hemolytic, antifungal and antibiotic potential. In the present research article, we are presenting our findings regarding the synthesis of N-alkylated lipopeptides via Ugi four-component approach, their antimicrobial potential against pathogenic (Gram-positive and Gram-negative) bacteria, as well as computational studies to investigate the compounds binding affinity and dynamic behavior with MurD antibacterial target. Molecular docking demonstrated the compounds have good binding ability with MurD enzyme. The FT94, FT95 and FT97 compounds revealed binding affinity scores of -8.585 kcal mol- 1, -7.660 kcal mol- 1 and -7.351 kcal mol- 1, respectively. Furthermore, dynamics analysis pointed the systems high structure dynamics. The docking and simulation results were validated by binding free energies, demonstrating solid intermolecular interactions and in the assay in vitro, the Minimal Inhibitory Concentration (MIC) of FT97 to Staphylococcus aureus (S. aureus) was 62.5 μg/mL. In conclusion, a moderate inhibitory response of peptoid FT97 was observed against the Gram-positive bacteria, S. aureus and B. cereus.
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Affiliation(s)
- Oscar Valdes
- Centro de Investigación de Estudios Avanzados del Maule (CIEAM), Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, 3460000 Talca, Chile.
| | - Akbar Ali
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Verónica Carrasco-Sánchez
- Departamento de Microbiología, Facultad de Ciencias de la Salud, Universidad de Talca, 2 Norte 681, Talca 3460000, Chile; Center for Nanomedicine, Diagnostic & Drug Development (ND3), Universidad de Talca, Talca 3460000, Chile
| | - Gustavo Cabrera-Barjas
- Facultad de Ciencias del Cuidado de la Salud, Universidad San Sebastian Campus Las Tres Pascualas, Lientur 1457, Concepción, CP 4080871, Chile
| | - Esteban Duran-Lara
- Center for Nanomedicine, Diagnostic & Drug Development (ND3), Universidad de Talca, Talca 3460000, Chile; Bio & Nano Materials Lab, Drug Delivery and Controlled Release, Departamento de Microbiología, Facultad de Ciencias de la Salud, Universidad de Talca, Talca 3460000, Chile
| | - Muhammad Ibrahim
- Department of Applied Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Sajjad Ahmad
- Department of Health and Biological Sciences, Abasyn University, Peshawar 25000, Pakistan
| | - Rachel Moreno
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Odette Concepción
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Alexander F de la Torre
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Muhammad Abrar
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Luis Morales-Quintana
- Multidisciplinary Agroindustry Research Laboratory, Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Talca 3467987, Chile
| | - Diana Abril
- Departamento de Biología y Química, Facultad de Ciencias Básicas, Universidad Católica del Maule, Talca 3460000, Chile
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2
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Bustos D, Guzmán L, Valdés O, Muñoz-Vera M, Morales-Quintana L, Castro RI. Development and Evaluation of Cross-Linked Alginate-Chitosan-Abscisic Acid Blend Gel. Polymers (Basel) 2023; 15:3217. [PMID: 37571107 PMCID: PMC10420979 DOI: 10.3390/polym15153217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/17/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023] Open
Abstract
Abscisic acid (ABA) has been proposed to play a significant role in the ripening of nonclimacteric fruit, stomatal opening, and response to abiotic stresses in plants, which can adversely affect crop growth and productivity. The biological effects of ABA are dependent on its concentration and signal transduction pathways. However, due to its susceptibility to the environment, it is essential to find a suitable biotechnological approach to coat ABA for its application. One promising approach is to utilize alginate and chitosan, two natural polysaccharides known for their strong affinity for water and their ability to act as coating agents. In this study, an alginate-chitosan blend was employed to develop an ABA cover. To achieve this, an alginate-chitosan-abscisic acid (ALG-CS-ABA) blend was prepared by forming ionic bonds or complexes with calcium ions, or through dual cross-linking. This was done by dripping a homogeneous solution of alginate-chitosan and ABA into a calcium chloride solution, resulting in the formation of the blend. By combining the unique properties of alginate, chitosan, and ABA, the resulting ALG-CS-ABA blend can potentially offer enhanced stability, controlled release, and improved protection of ABA. These characteristics make it a promising biotechnological approach for various applications, including the targeted delivery of ABA in agricultural practices or in the development of innovative plant-based products. Further evaluation and characterization of the ALG-CS-ABA blend will provide valuable insights into its potential applications in the fields of biomedicine, agriculture, and tissue engineering.
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Affiliation(s)
- Daniel Bustos
- Centro de Investigación de Estudios Avanzados del Maule (CIEAM), Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, Talca 3460000, Chile; (D.B.); (O.V.)
- Laboratorio de Bioinformática y Química Computacional (LBQC), Escuela de Bioingeniería Médica, Facultad de Medicina, Universidad Católica del Maule, Talca 3460000, Chile
| | - Luis Guzmán
- Departamento de Bioquímica Clínica e Inmunohematología, Facultad de Ciencias de la Salud, Universidad de Talca, Avenida Lircay, s/n, Casilla 747–721, Talca 3460000, Chile;
| | - Oscar Valdés
- Centro de Investigación de Estudios Avanzados del Maule (CIEAM), Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, Talca 3460000, Chile; (D.B.); (O.V.)
| | - Marcelo Muñoz-Vera
- Multidisciplinary Agroindustry Research Laboratory, Universidad Autónoma de Chile, Cinco Pte. N°1670, Talca 3467987, Chile;
| | - Luis Morales-Quintana
- Multidisciplinary Agroindustry Research Laboratory, Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Cinco Pte. N°1670, Talca 3467987, Chile
| | - Ricardo I. Castro
- Multidisciplinary Agroindustry Research Laboratory, Instituto de Ciencias Aplicadas, Facultad de Arquitectura, Construcción y Medio Ambiente, Universidad Autónoma de Chile, Cinco Pte. N°1670, Talca 3467987, Chile
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3
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Wu Y, Tang Z, Ma S, Du L. The promising application of hydrogel microneedles in medical application. J Pharm Pharmacol 2023:rgad058. [PMID: 37330272 DOI: 10.1093/jpp/rgad058] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 05/31/2023] [Indexed: 06/19/2023]
Abstract
OBJECTIVES Hydrogel microneedles are emerging, and promising microneedles mainly composed of swelling polymers. This review is intended to summarize the preparation materials, formation mechanisms, applications and existing problems of hydrogel microneedles. METHODS We collected the literature on the materials, preparation and application of hydrogel microneedles in recent years, and summarized their mechanism and application in drugs delivery. KEY FINDINGS Hydrogel microneedles have higher safety and capabilities of controlled drug release, and have been mainly used in tumour and diabetes treatment, as well as clinical monitoring. In recent years, hydrogel microneedles have shown great potential in drug delivery, and have played the role of whitening, anti-inflammatory and promoting healing. CONCLUSIONS As an emerging drug delivery idea, hydrogel microneedles for drug delivery has gradually become a research hotspot. This review will provide a systematic vision for the favourable development of hydrogel microneedles and their promising application in medicine, especially drug delivery.
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Affiliation(s)
- Yanping Wu
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, China
| | - Ziyan Tang
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, China
| | - Shan Ma
- School of Rehabilitation, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Lina Du
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, China
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4
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Rafael D, Guerrero M, Marican A, Arango D, Sarmento B, Ferrer R, Durán-Lara EF, Clark SJ, Schwartz S. Delivery Systems in Ocular Retinopathies: The Promising Future of Intravitreal Hydrogels as Sustained-Release Scaffolds. Pharmaceutics 2023; 15:pharmaceutics15051484. [PMID: 37242726 DOI: 10.3390/pharmaceutics15051484] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Slow-release delivery systems are needed to ensure long-term sustained treatments for retinal diseases such as age-related macular degeneration and diabetic retinopathy, which are currently treated with anti-angiogenic agents that require frequent intraocular injections. These can cause serious co-morbidities for the patients and are far from providing the adequate drug/protein release rates and required pharmacokinetics to sustain prolonged efficacy. This review focuses on the use of hydrogels, particularly on temperature-responsive hydrogels as delivery vehicles for the intravitreal injection of retinal therapies, their advantages and disadvantages for intraocular administration, and the current advances in their use to treat retinal diseases.
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Affiliation(s)
- Diana Rafael
- Drug Delivery & Targeting, Vall d'Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Functional Validation & Preclinical Research (FVPR), 20 ICTS Nanbiosis, Vall d'Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain
| | - Marcelo Guerrero
- Bio & Nano Materials Lab, Drug Delivery and Controlled Release, Departamento de Microbiología, Facultad de Ciencias de la Salud, Universidad de Talca, Talca 3460000, Chile
- Center for Nanomedicine, Diagnostic & Drug Development (ND3), Universidad de Talca, Talca 3460000, Chile
| | - Adolfo Marican
- Bio & Nano Materials Lab, Drug Delivery and Controlled Release, Departamento de Microbiología, Facultad de Ciencias de la Salud, Universidad de Talca, Talca 3460000, Chile
- Center for Nanomedicine, Diagnostic & Drug Development (ND3), Universidad de Talca, Talca 3460000, Chile
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Chile
| | - Diego Arango
- Group of Biomedical Research in Digestive Tract Tumors, Vall d'Hebron University Hospital Research Institute (VHIR), Universitat Autònoma de Barcelona, 08035 Barcelona, Spain
- Group of Molecular Oncology, Biomedical Research Institute of Lleida (IRBLleida), 25198 Lleida, Spain
| | - Bruno Sarmento
- i3S-Instituto de Investigação e Inovação, Saúde Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Roser Ferrer
- Clinical Biochemistry Group, Vall d'Hebron Hospital, 08035 Barcelona, Spain
| | - Esteban F Durán-Lara
- Bio & Nano Materials Lab, Drug Delivery and Controlled Release, Departamento de Microbiología, Facultad de Ciencias de la Salud, Universidad de Talca, Talca 3460000, Chile
- Center for Nanomedicine, Diagnostic & Drug Development (ND3), Universidad de Talca, Talca 3460000, Chile
| | - Simon J Clark
- Department for Ophthalmology, University Eye Clinic, Eberhard Karls University of Tübingen, 72076 Tübingen, Germany
- Institute for Ophthalmic Research, Eberhard Karls University of Tübingen, 72076 Tübingen, Germany
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK
| | - Simo Schwartz
- Drug Delivery & Targeting, Vall d'Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain
- Clinical Biochemistry Group, Vall d'Hebron Hospital, 08035 Barcelona, Spain
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5
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Alkekhia D, LaRose C, Shukla A. β-Lactamase-Responsive Hydrogel Drug Delivery Platform for Bacteria-Triggered Cargo Release. ACS APPLIED MATERIALS & INTERFACES 2022; 14:27538-27550. [PMID: 35675049 DOI: 10.1021/acsami.2c02614] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Antibiotic resistance is a growing public health threat that complicates the treatment of infections. β-Lactamase enzymes, which hydrolyze the β-lactam ring present in many common antibiotics, are a major cause of this resistance and are produced by a broad range of bacterial pathogens. Here, we developed hydrogels that degrade specifically in the presence of β-lactamases and β-lactamase-producing bacteria as a platform for bacteria-triggered drug delivery. A maleimide-functionalized β-lactamase-cleavable cephalosporin was used as a crosslinker in the fabrication of hydrogels through end-crosslinked polymerization with multiarm thiol-terminated poly(ethylene glycol) macromers via Michael-type addition. We demonstrated that only hydrogels containing the responsive crosslinker were degraded by β-lactamases and β-lactamase-producing bacteria in vitro and in an ex vivo porcine skin infection model. Fluorescent polystyrene nanoparticles, encapsulated in the hydrogels as model cargo, were released at rates that closely tracked hydrogel wet mass loss, confirming β-lactamase-triggered controlled cargo release. Nonresponsive hydrogels, lacking the β-lactam crosslinker, remained stable in the presence of β-lactamases and β-lactamase-producing bacteria and exhibited no change in mass or nanoparticle release. Furthermore, the responsive hydrogels remained stable in non-β-lactamase enzymes, including collagenases and lipases. These hydrogels have the potential to be used as a bacteria-triggered drug delivery system to control unnecessary exposure to encapsulated antimicrobials, which can provide effective infection treatment without exacerbating resistance.
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Affiliation(s)
- Dahlia Alkekhia
- School of Engineering, Center for Biomedical Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Cassi LaRose
- School of Engineering, Center for Biomedical Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Anita Shukla
- School of Engineering, Center for Biomedical Engineering, Brown University, Providence, Rhode Island 02912, United States
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6
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Jansook P, Loftsson T. Self-assembled γ-cyclodextrin as nanocarriers for enhanced ocular drug bioavailability. Int J Pharm 2022; 618:121654. [DOI: 10.1016/j.ijpharm.2022.121654] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/21/2022] [Accepted: 03/07/2022] [Indexed: 12/21/2022]
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7
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Carreño G, Pereira A, Ávila-Salas F, Marican A, Andrade F, Roca-Melendres MM, Valdés O, Vijayakumar S, Schwartz S, Abasolo I, Rafael D, Durán-Lara EF. Development of "on-demand" thermo-responsive hydrogels for anti-cancer drugs sustained release: Rational design, in silico prediction and in vitro validation in colon cancer models. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 131:112483. [PMID: 34857269 DOI: 10.1016/j.msec.2021.112483] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/22/2021] [Accepted: 10/08/2021] [Indexed: 12/01/2022]
Abstract
A rational design accurate based on the use of Statistical Design of the Experiments (DoE) and Molecular Dynamics Simulations Studies allows the prediction and the understanding of thermo-responsive hydrogels prepared regarding their gelation temperature and anti-cancer drug release rate. N-isopropylacrilamide (NIPAM) modified with specific co-monomers and crosslinkers, can be used to prepare "on-demand" thermo-responsive hydrogels with the ideal properties for clinical applications in which local sustained release of drugs is crucial. Two preferential formulations resulting from the predictive studies of DoE and In Silico methods were synthesized by radical polymerization, fully characterized, and loaded with the anticancer drug Doxorubicin (Dox). The hydrogel formulations were characterized by swelling rate, turbidity, FTIR, 1H NMR, SEM, gelation time, rheology, and biocompatibility assays. Both formulations demonstrated adequate morphologic, rheological, and biocompatibility properties; however, important differences in terms of drug retention were detected. As demonstrated by a Dox cumulative release study and posteriorly confirmed by an efficacy assay in an in vitro colorectal cancer model, the formulation composed by NIPAM and 4-penten-1-ol crosslinked with poly(ethylene glycol) diacrylate (PEGDA) (PNiPenPH) present a slow release over the time, presenting ideal properties to become and ideal depot system for the local sustained release of anticancer drugs as adjuvant therapy or in the case of non-resectable tumors.
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Affiliation(s)
- Gustavo Carreño
- Bio and NanoMaterials Lab, Drug Delivery and Controlled Release, Universidad de Talca, Talca, Maule, Chile; Instituto de Química de Recursos Naturales, Universidad de Talca, Talca, Maule, Chile
| | - Alfredo Pereira
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca, Maule, Chile
| | - Fabián Ávila-Salas
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Huechuraba 8580000, Región Metropolitana, Chile
| | - Adolfo Marican
- Bio and NanoMaterials Lab, Drug Delivery and Controlled Release, Universidad de Talca, Talca, Maule, Chile; Instituto de Química de Recursos Naturales, Universidad de Talca, Talca, Maule, Chile
| | - Fernanda Andrade
- Drug Delivery and Targeting Group, Molecular Biology and Biochemistry Research Centre for Nanomedicine (CIBBIM-Nanomedicine), Vall d'Hebron Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Spain; School of Pharmacy, Barcelona University, Barcelona, Spain
| | - Maria Mercé Roca-Melendres
- Drug Delivery and Targeting Group, Molecular Biology and Biochemistry Research Centre for Nanomedicine (CIBBIM-Nanomedicine), Vall d'Hebron Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Oscar Valdés
- Centro de Investigación de Estudios Avanzados del Maule (CIEAM), Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, Talca 3460000, Maule, Chile
| | | | - Simó Schwartz
- Drug Delivery and Targeting Group, Molecular Biology and Biochemistry Research Centre for Nanomedicine (CIBBIM-Nanomedicine), Vall d'Hebron Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Spain; Networking Research Centre for Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Ibane Abasolo
- Drug Delivery and Targeting Group, Molecular Biology and Biochemistry Research Centre for Nanomedicine (CIBBIM-Nanomedicine), Vall d'Hebron Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Spain; Networking Research Centre for Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain; Functional Validation & Preclinical Research (FVPR), CIBBIM-Nanomedicine, Vall d'Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Diana Rafael
- Drug Delivery and Targeting Group, Molecular Biology and Biochemistry Research Centre for Nanomedicine (CIBBIM-Nanomedicine), Vall d'Hebron Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Spain; Networking Research Centre for Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, Madrid, Spain.
| | - Esteban F Durán-Lara
- Bio and NanoMaterials Lab, Drug Delivery and Controlled Release, Universidad de Talca, Talca, Maule, Chile; Departamento de Microbiología, Facultad de Ciencias de la Salud, Universidad de Talca, Talca, Maule, Chile.
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8
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Guzmán L, Parra-Cid C, Guerrero-Muñoz E, Peña-Varas C, Polo-Cuadrado E, Duarte Y, Castro RI, Nerio LS, Araya-Maturana R, Asefa T, Echeverría J, Ramírez D, Forero-Doria O. Antimicrobial properties of novel ionic liquids derived from imidazolium cation with phenolic functional groups. Bioorg Chem 2021; 115:105289. [PMID: 34426154 DOI: 10.1016/j.bioorg.2021.105289] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 08/13/2021] [Accepted: 08/16/2021] [Indexed: 12/18/2022]
Abstract
Bacterial infections are nowadays among the major threats to public health worldwide. Thus, there is an urgent and increased need for new antimicrobial agents. As a result, the exploration of the antimicrobial properties of different substances including ionic liquids (ILs) has recently attracted great attention. The present work is aimed at evaluating how the addition of halogens and hydrophobic substituents on alkylimidazolium units of ILs as well as the increase in their chain lengths affects the antimicrobial properties of such ILs. After their synthesis, the antibacterial activities of these compounds against Pseudomona aeruginosa, Escherichia coli, and Staphylococcus aureus are determined by measuring their minimal inhibitory concentrations (MICs). Key features in ILs-membrane interactions are also studied using long-term all-atom molecular dynamics simulations (MDs). The results show that these ILs have good antibacterial activity against S. aureus, E. coli, and P. aeruginosa, with MIC values range from <7.81 to 62.50 μM. The antimicrobial property of tert-butyl N-methylphenolimidazolium salts (denoted as 8b and 8c) is particularly better with MIC values of < 7.81 μM. The antibacterial efficacy is also found to depend on the alkyl chain length and substituents on the phenolic ring. Finally, MDs done for ILs in a phosphatidylcholine (POPC) bilayer show key features in the mechanism of IL-induced membrane disruption, where the ILs are inserted as clusters into one side of the bilayer until saturation is reached. This insertion increases "leaflet strain" up to critical threshold, likely triggering the morphological disruption of the membranes in the microbes.
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Affiliation(s)
- Luis Guzmán
- Departamento de Bioquímica Clínica e Inmunohematología, Facultad de Ciencias de la Salud, Universidad de Talca, P.O. Box 747, Talca 3460000, Chile
| | - Cristóbal Parra-Cid
- Departamento de Bioquímica Clínica e Inmunohematología, Facultad de Ciencias de la Salud, Universidad de Talca, P.O. Box 747, Talca 3460000, Chile
| | - Etiennette Guerrero-Muñoz
- Instituto de Química de Recursos Naturales, Universidad de Talca, P.O. Box 747, Talca 3460000, Chile
| | - Carlos Peña-Varas
- Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, El Llano Subercaseaux, 2801-Piso 6, Santiago, Chile
| | - Efraín Polo-Cuadrado
- Instituto de Química de Recursos Naturales, Laboratorio de Síntesis Orgánica, Universidad de Talca, Casilla 747, Talca 3460000, Chile
| | - Yorley Duarte
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Ricardo I Castro
- Carrera de Ingeniería en Construcción e Instituto de Ciencias Químicas Aplicadas, Multidisciplinary Agroindustry Research Laboratory, Universidad Autónoma de Chile, Talca, Chile
| | - Luz Stella Nerio
- Universidad de la Amazonia, Programa de Química, Calle 17 Diagonal 17 Carrera 3F, Florencia, Colombia
| | - Ramiro Araya-Maturana
- Instituto de Química de Recursos Naturales, Universidad de Talca, P.O. Box 747, Talca 3460000, Chile
| | - Tewodros Asefa
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, NJ 08854, United States; Department of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, NJ 08854, United States
| | - Javier Echeverría
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad Santiago de Chile, Santiago, Chile
| | - David Ramírez
- Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, El Llano Subercaseaux, 2801-Piso 6, Santiago, Chile
| | - Oscar Forero-Doria
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad Santiago de Chile, Santiago, Chile.
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9
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Carreño G, Marican A, Vijayakumar S, Valdés O, Cabrera-Barjas G, Castaño J, Durán-Lara EF. Sustained Release of Linezolid from Prepared Hydrogels with Polyvinyl Alcohol and Aliphatic Dicarboxylic Acids of Variable Chain Lengths. Pharmaceutics 2020; 12:pharmaceutics12100982. [PMID: 33080791 PMCID: PMC7589041 DOI: 10.3390/pharmaceutics12100982] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/08/2020] [Accepted: 10/15/2020] [Indexed: 12/31/2022] Open
Abstract
A series of hydrogels with a specific release profile of linezolid was successfully synthesized. The hydrogels were synthesized by cross-linking polyvinyl alcohol (PVA) and aliphatic dicarboxylic acids, which include succinic acid (SA), glutaric acid (GA), and adipic acid (AA). The three crosslinked hydrogels were prepared by esterification and characterized by equilibrium swelling ratio, infrared spectroscopy, thermogravimetric analysis, mechanical properties, and scanning electron microscopy. The release kinetics studies of the linezolid from prepared hydrogels were investigated by cumulative drug release and quantified by chromatographic techniques. Mathematical models were carried out to understand the behavior of the linezolid release. These data revealed that the sustained release of linezolid depends on the aliphatic dicarboxylic acid chain length, their polarity, as well as the hydrogel crosslinking degree and mechanical properties. The in vitro antibacterial assay of hydrogel formulations was assessed in an Enterococcus faecium bacterial strain, showing a significant activity over time. The antibacterial results were consistent with cumulative release assays. Thus, these results demonstrated that the aliphatic dicarboxylic acids used as crosslinkers in the PVA hydrogels were a determining factor in the antibiotic release profile.
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Affiliation(s)
- Gustavo Carreño
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Maule, Chile; (G.C.); (A.M.)
- Bio and NanoMaterials Lab, Drug Delivery and Controlled Release, Universidad de Talca, Talca 3460000, Maule, Chile
| | - Adolfo Marican
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Maule, Chile; (G.C.); (A.M.)
- Bio and NanoMaterials Lab, Drug Delivery and Controlled Release, Universidad de Talca, Talca 3460000, Maule, Chile
| | | | - Oscar Valdés
- Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, Talca 3460000, Maule, Chile;
| | - Gustavo Cabrera-Barjas
- Unidad de Desarrollo Tecnológico, Universidad de Concepción, Av. Cordillera 2634, Parque Industrial Coronel, Coronel 4191996, Biobío, Chile;
| | - Johanna Castaño
- Facultad de Ingeniería y Tecnología, Universidad San Sebastián, Lientur 1457, Concepción 4080871, Chile;
| | - Esteban F. Durán-Lara
- Bio and NanoMaterials Lab, Drug Delivery and Controlled Release, Universidad de Talca, Talca 3460000, Maule, Chile
- Departamento de Microbiología, Facultad de Ciencias de la Salud, Universidad de Talca, Talca 3460000, Maule, Chile
- Correspondence: ; Tel.: +56-71-220-0363
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10
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Bi Y, Lv B, Li L, Lee RJ, Xie J, Qiu Z, Teng L. A Liposomal Formulation for Improving Solubility and Oral Bioavailability of Nifedipine. Molecules 2020; 25:molecules25020338. [PMID: 31947655 PMCID: PMC7024191 DOI: 10.3390/molecules25020338] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/07/2020] [Accepted: 01/09/2020] [Indexed: 01/02/2023] Open
Abstract
Proliposomes were used to improve the solubility and oral bioavailability of nifedipine. Nifedipine proliposomes were prepared by methanol injection-spray drying method. The response surface method was used to optimize formulation to enhance the encapsulation efficiency (EE%) of nifedipine. The particle size of nifedipine proliposomes after rehydration was 114 nm. Surface morphology of nifedipine proliposomes was observed by a scanning electron microscope (SEM) and interaction of formulation ingredients was assessed by differential scanning calorimetry (DSC). The solubility of nifedipine is improved 24.8 times after forming proliposomes. In vitro release experiment, nifedipine proliposomes had a control release effect, especially in simulated gastric fluid. In vivo, nifedipine proliposomes significantly improved the bioavailability of nifedipine. The area under the concentration-time curve (AUC0–∞) of nifedipine proliposomes was about 10 times than nifedipine after oral administration. The elimination half-life (T1/2β) of nifedipine was increased from 1.6 h to 6.6 h. In conclusion, proliposomes was a promising system to deliver nifedipine through oral route and warranted further investigation.
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Affiliation(s)
- Ye Bi
- Key Laboratory of Effective Components of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, China;
- Practice Training Center, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Bingcong Lv
- School of Life Sciences, Jilin University, Changchun 130117, China; (B.L.); (L.L.); (R.J.L.); (J.X.)
| | - Lianlian Li
- School of Life Sciences, Jilin University, Changchun 130117, China; (B.L.); (L.L.); (R.J.L.); (J.X.)
| | - Robert J. Lee
- School of Life Sciences, Jilin University, Changchun 130117, China; (B.L.); (L.L.); (R.J.L.); (J.X.)
- Division of Pharmaceutics, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
| | - Jing Xie
- School of Life Sciences, Jilin University, Changchun 130117, China; (B.L.); (L.L.); (R.J.L.); (J.X.)
| | - Zhidong Qiu
- Key Laboratory of Effective Components of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, China;
- Department of Pharmacy, Changchun University of Chinese Medicine, Changchun 130117, China
- Correspondence: (Z.Q.); (L.T.); Tel.: +86-431-86172204 (Z.Q.); +86-431-85155320 (L.T.)
| | - Lesheng Teng
- Key Laboratory of Effective Components of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, China;
- School of Life Sciences, Jilin University, Changchun 130117, China; (B.L.); (L.L.); (R.J.L.); (J.X.)
- Department of Pharmacy, Changchun University of Chinese Medicine, Changchun 130117, China
- Correspondence: (Z.Q.); (L.T.); Tel.: +86-431-86172204 (Z.Q.); +86-431-85155320 (L.T.)
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11
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Ávila-Salas F, Marican A, Pinochet S, Carreño G, Valdés O, Venegas B, Donoso W, Cabrera-Barjas G, Vijayakumar S, Durán-Lara EF. Film Dressings Based on Hydrogels: Simultaneous and Sustained-Release of Bioactive Compounds with Wound Healing Properties. Pharmaceutics 2019; 11:pharmaceutics11090447. [PMID: 31480682 PMCID: PMC6781310 DOI: 10.3390/pharmaceutics11090447] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/19/2019] [Accepted: 08/26/2019] [Indexed: 12/12/2022] Open
Abstract
This research proposes the rational modeling, synthesis and evaluation of film dressing hydrogels based on polyvinyl alcohol crosslinked with 20 different kinds of dicarboxylic acids. These formulations would allow the sustained release of simultaneous bioactive compounds including allantoin, resveratrol, dexpanthenol and caffeic acid as a multi-target therapy in wound healing. Interaction energy calculations and molecular dynamics simulation studies allowed evaluating the intermolecular affinity of the above bioactive compounds by hydrogels crosslinked with the different dicarboxylic acids. According to the computational results, the hydrogels crosslinked with succinic, aspartic, maleic and malic acids were selected as the best candidates to be synthesized and evaluated experimentally. These four crosslinked hydrogels were prepared and characterized by FTIR, mechanical properties, SEM and equilibrium swelling ratio. The sustained release of the bioactive compounds from the film dressing was investigated in vitro and in vivo. The in vitro results indicate a good release profile for all four analyzed bioactive compounds. More importantly, in vivo experiments suggest that prepared formulations could considerably accelerate the healing rate of artificial wounds in rats. The histological studies show that these formulations help to successfully reconstruct and thicken epidermis during 14 days of wound healing. Moreover, the four film dressings developed and exhibited excellent biocompatibility. In conclusion, the novel film dressings based on hydrogels rationally designed with combinatorial and sustained release therapy could have significant promise as dressing materials for skin wound healing.
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Affiliation(s)
- Fabian Ávila-Salas
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Huechuraba 8580000, Región Metropolitana, Chile
| | - Adolfo Marican
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Maule, Chile
- Bio and NanoMaterials Lab, Drug Delivery and Controlled Release, Universidad de Talca, Talca 3460000, Maule, Chile
| | - Soledad Pinochet
- Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, Talca 3460000, Maule, Chile
| | - Gustavo Carreño
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Maule, Chile
- Bio and NanoMaterials Lab, Drug Delivery and Controlled Release, Universidad de Talca, Talca 3460000, Maule, Chile
| | - Oscar Valdés
- Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, Talca 3460000, Maule, Chile
| | - Bernardo Venegas
- Department of Stomatology, Faculty of Health Sciences, University of Talca, Talca 3460000, Chile
| | - Wendy Donoso
- Department of Stomatology, Faculty of Health Sciences, University of Talca, Talca 3460000, Chile
| | - Gustavo Cabrera-Barjas
- Technological Development Unit (UDT), Universidad de Concepción, Av. Cordillera 2634, Parque Industrial Coronel, Coronel 4191996, Biobío, Chile
| | - Sekar Vijayakumar
- Nanobiosciences and Nanopharmacology Division, Biomaterials and Biotechnology in Animal Health Lab, Department of Animal Health and Management, Alagappa University, Science Campus 6th Floor, Karaikudi-630004, Tamil Nadu, India
| | - Esteban F Durán-Lara
- Bio and NanoMaterials Lab, Drug Delivery and Controlled Release, Universidad de Talca, Talca 3460000, Maule, Chile.
- Departamento de Microbiología, Facultad de Ciencias de la Salud, Universidad de Talca, Talca 3460000, Maule, Chile.
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12
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Casalini T, Perale G. From Microscale to Macroscale: Nine Orders of Magnitude for a Comprehensive Modeling of Hydrogels for Controlled Drug Delivery. Gels 2019; 5:E28. [PMID: 31096685 PMCID: PMC6631542 DOI: 10.3390/gels5020028] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 04/14/2019] [Accepted: 05/06/2019] [Indexed: 12/21/2022] Open
Abstract
Because of their inherent biocompatibility and tailorable network design, hydrogels meet an increasing interest as biomaterials for the fabrication of controlled drug delivery devices. In this regard, mathematical modeling can highlight release mechanisms and governing phenomena, thus gaining a key role as complementary tool for experimental activity. Starting from the seminal contribution given by Flory-Rehner equation back in 1943 for the determination of matrix structural properties, over more than 70 years, hydrogel modeling has not only taken advantage of new theories and the increasing computational power, but also of the methods offered by computational chemistry, which provide details at the fundamental molecular level. Simulation techniques such as molecular dynamics act as a "computational microscope" and allow for obtaining a new and deeper understanding of the specific interactions between the solute and the polymer, opening new exciting possibilities for an in silico network design at the molecular scale. Moreover, system modeling constitutes an essential step within the "safety by design" paradigm that is becoming one of the new regulatory standard requirements also in the field-controlled release devices. This review aims at providing a summary of the most frequently used modeling approaches (molecular dynamics, coarse-grained models, Brownian dynamics, dissipative particle dynamics, Monte Carlo simulations, and mass conservation equations), which are here classified according to the characteristic length scale. The outcomes and the opportunities of each approach are compared and discussed with selected examples from literature.
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Affiliation(s)
- Tommaso Casalini
- Biomaterials Laboratory, Institute for Mechanical Engineering and Materials Technology, SUPSI-University of Applied Sciences and Arts of Southern Switzerland, Via Cantonale 2C, Galleria 2, 6928 Manno, Switzerland.
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland.
| | - Giuseppe Perale
- Biomaterials Laboratory, Institute for Mechanical Engineering and Materials Technology, SUPSI-University of Applied Sciences and Arts of Southern Switzerland, Via Cantonale 2C, Galleria 2, 6928 Manno, Switzerland.
- Department of Surgical Sciences and Integrated Diagnostics, Orthopaedic Clinic-IRCCS Ospedale Policlinico San Martino, Faculty of Biomedical Sciences, University of Genova, Largo R. Benzi 10, 16132 Genova, Italy.
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13
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Rodríguez Nuñez YA, Castro RI, Arenas FA, López-Cabaña ZE, Carreño G, Carrasco-Sánchez V, Marican A, Villaseñor J, Vargas E, Santos LS, Durán-Lara EF. Preparation of Hydrogel/Silver Nanohybrids Mediated by Tunable-Size Silver Nanoparticles for Potential Antibacterial Applications. Polymers (Basel) 2019; 11:polym11040716. [PMID: 31010156 PMCID: PMC6523894 DOI: 10.3390/polym11040716] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 02/25/2019] [Accepted: 04/16/2019] [Indexed: 01/20/2023] Open
Abstract
In this study, a versatile synthesis of silver nanoparticles of well-defined size by using hydrogels as a template and stabilizer of nanoparticle size is reported. The prepared hydrogels are based on polyvinyl alcohol and maleic acid as crosslinker agents. Three hydrogels with the same nature were synthesized, however, the crosslinking degree was varied. The silver nanoparticles were synthesized into each prepared hydrogel matrix achieving three significant, different-sized nanoparticles that were spherical in shape with a narrow size distribution. It is likely that the polymer network stabilized the nanoparticles. It was determined that the hydrogel network structure can control the size and shape of the nanoparticles. The hydrogel/silver nanohybrids were characterized by swelling degree, Thermal Gravimetric Analysis (TGA), Fourier Transform Infrared (FT-IR), Scanning Electron Microscopy (SEM) and Transmission Electron Microscope (TEM). Antibacterial activity against Staphylococcus aureus was evaluated, confirming antimicrobial action of the encapsulated silver nanoparticles into the hydrogels.
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Affiliation(s)
- Yeray A Rodríguez Nuñez
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Maule, Chile
| | - Ricardo I Castro
- Multidisciplinary Agroindustry Research Laboratory, Carrera de Ingeniería en Construcción e Instituto de Ciencias Químicas Aplicadas, Universidad Autónoma de Chile, Talca 3460000, Chile
| | - Felipe A Arenas
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 8320000, Chile
| | - Zoraya E López-Cabaña
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Maule, Chile
| | - Gustavo Carreño
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Maule, Chile
- Bio & NanoMaterials Lab| Drug Delivery and Controlled Release, Universidad de Talca, Talca 3460000, Maule, Chile
| | - Verónica Carrasco-Sánchez
- Departamento de Microbiología, Facultad de Ciencias de la Salud, Universidad de Talca, Talca 3460000, Maule, Chile
| | - Adolfo Marican
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Maule, Chile
- Bio & NanoMaterials Lab| Drug Delivery and Controlled Release, Universidad de Talca, Talca 3460000, Maule, Chile
| | - Jorge Villaseñor
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Maule, Chile
| | - Esteban Vargas
- Center for the Development of Nanoscience and Nanotechnology, Santiago 8320000, Chile
| | - Leonardo S Santos
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca 3460000, Maule, Chile
| | - Esteban F Durán-Lara
- Bio & NanoMaterials Lab| Drug Delivery and Controlled Release, Universidad de Talca, Talca 3460000, Maule, Chile.
- Departamento de Microbiología, Facultad de Ciencias de la Salud, Universidad de Talca, Talca 3460000, Maule, Chile.
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