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Veloso SRS, Marta ES, Rodrigues PV, Moura C, Amorim CO, Amaral VS, Correa-Duarte MA, Castanheira EMS. Chitosan/Alginate Nanogels Containing Multicore Magnetic Nanoparticles for Delivery of Doxorubicin. Pharmaceutics 2023; 15:2194. [PMID: 37765164 PMCID: PMC10538132 DOI: 10.3390/pharmaceutics15092194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/13/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023] Open
Abstract
In this study, multicore-like iron oxide (Fe3O4) and manganese ferrite (MnFe2O4) nanoparticles were synthesized and combined with nanogels based on chitosan and alginate to obtain a multimodal drug delivery system. The nanoparticles exhibited crystalline structures and displayed sizes of 20 ± 3 nm (Fe3O4) and 11 ± 2 nm (MnFe2O4). The Fe3O4 nanoparticles showed a higher saturation magnetization and heating efficiency compared with the MnFe2O4 nanoparticles. Functionalization with citrate and bovine serum albumin was found to improve the stability and modified surface properties. The nanoparticles were encapsulated in nanogels, and provided high drug encapsulation efficiencies (~70%) using doxorubicin as a model drug. The nanogels exhibited sustained drug release, with enhanced release under near-infrared (NIR) laser irradiation and acidic pH. The nanogels containing BSA-functionalized nanoparticles displayed improved sustained drug release at physiological pH, and the release kinetics followed a diffusion-controlled mechanism. These results demonstrate the potential of synthesized nanoparticles and nanogels for controlled drug delivery, offering opportunities for targeted and on-demand release in biomedical applications.
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Affiliation(s)
- Sérgio R. S. Veloso
- Physics Centre of Minho and Porto Universities (CF-UM-UP), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (S.R.S.V.)
- LaPMET Associate Laboratory, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
| | - Eva S. Marta
- Physics Centre of Minho and Porto Universities (CF-UM-UP), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (S.R.S.V.)
- LaPMET Associate Laboratory, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
| | - Pedro V. Rodrigues
- Department of Polymer Engineering, Institute for Polymers and Composites (IPC), University of Minho, 4804-533 Guimarães, Portugal
| | - Cacilda Moura
- Physics Centre of Minho and Porto Universities (CF-UM-UP), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (S.R.S.V.)
- LaPMET Associate Laboratory, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
| | - Carlos O. Amorim
- Physics Department and CICECO, Campus de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal; (C.O.A.); (V.S.A.)
| | - Vítor S. Amaral
- Physics Department and CICECO, Campus de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal; (C.O.A.); (V.S.A.)
| | - Miguel A. Correa-Duarte
- Centro de Investigación en Nanomateriais e Biomedicina (CINBIO), Universidad de Vigo, 36310 Vigo, Spain
| | - Elisabete M. S. Castanheira
- Physics Centre of Minho and Porto Universities (CF-UM-UP), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (S.R.S.V.)
- LaPMET Associate Laboratory, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
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