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Elzayat AM, Adam-Cervera I, Albus M, Cháfer A, Badia JD, Pérez-Pla FF, Muñoz-Espí R. Polysaccharide/Silica Microcapsules Prepared via Ionic Gelation Combined with Spray Drying: Application in the Release of Hydrophilic Substances and Catalysis. Polymers (Basel) 2023; 15:4116. [PMID: 37896359 PMCID: PMC10610447 DOI: 10.3390/polym15204116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/02/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Polysaccharide/silica hybrid microcapsules were prepared using ionic gelation followed by spray-drying. Chitosan and alginate were used as biopolymer matrices, and in situ prepared silica was used as a structuring additive. The prepared microparticles were used in two very different applications: the encapsulation of hydrophilic molecules, and as a support for palladium nanoparticles used as catalysts for a model organic reaction, namely the reduction of p-nitrophenol by sodium borhydride. In the first application, erioglaucine disodium salt, taken as a model hydrophilic substance, was encapsulated in situ during the preparation of the microparticles. The results indicate that the presence of silica nanostructures, integrated within the polymer matrix, affect the morphology and the stability of the particles, retarding the release of the encapsulated substance. In the second application, chloropalladate was complexed on the surface of chitosan microparticles, and palladium(II) was subsequently reduced to palladium(0) to obtain heterogeneous catalysts with an excellent performance.
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Affiliation(s)
- Asmaa M. Elzayat
- Institute of Materials Science (ICMUV), Universitat de València, C/Catedràtic José Beltrán 2, 46980 Paterna, Spain
- Physics Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Inés Adam-Cervera
- Institute of Materials Science (ICMUV), Universitat de València, C/Catedràtic José Beltrán 2, 46980 Paterna, Spain
| | - Marie Albus
- Institute of Materials Science (ICMUV), Universitat de València, C/Catedràtic José Beltrán 2, 46980 Paterna, Spain
| | - Amparo Cháfer
- Department of Chemical Engineering, School of Engineering, Universitat de València, Av. de la Universitat s/n, 46100 Burjassot, Spain
| | - José D. Badia
- Department of Chemical Engineering, School of Engineering, Universitat de València, Av. de la Universitat s/n, 46100 Burjassot, Spain
| | - Francisco F. Pérez-Pla
- Institute of Materials Science (ICMUV), Universitat de València, C/Catedràtic José Beltrán 2, 46980 Paterna, Spain
| | - Rafael Muñoz-Espí
- Institute of Materials Science (ICMUV), Universitat de València, C/Catedràtic José Beltrán 2, 46980 Paterna, Spain
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Figari G, Gonçalves JLM, Diogo HP, Dionísio M, Farinha JP, Viciosa MT. Understanding Fenofibrate Release from Bare and Modified Mesoporous Silica Nanoparticles. Pharmaceutics 2023; 15:1624. [PMID: 37376073 DOI: 10.3390/pharmaceutics15061624] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/19/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
To investigate the impact of the surface functionalization of mesoporous silica nanoparticle (MSN) carriers in the physical state, molecular mobility and the release of Fenofibrate (FNB) MSNs with ordered cylindrical pores were prepared. The surface of the MSNs was modified with either (3-aminopropyl) triethoxysilane (APTES) or trimethoxy(phenyl)silane (TMPS), and the density of the grafted functional groups was quantified via 1H-NMR. The incorporation in the ~3 nm pores of the MSNs promoted FNB amorphization, as evidenced via FTIR, DSC and dielectric analysis, showing no tendency to undergo recrystallization in opposition to the neat drug. Moreover, the onset of the glass transition was slightly shifted to lower temperatures when the drug was loaded in unmodified MSNs, and MSNs modified with APTES composite, while it increased in the case of TMPS-modified MSNs. Dielectric studies have confirmed these changes and allowed researchers to disclose the broad glass transition in multiple relaxations associated with different FNB populations. Moreover, DRS showed relaxation processes in dehydrated composites associated with surface-anchored FNB molecules whose mobility showed a correlation with the observed drug release profiles.
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Affiliation(s)
- Giorgia Figari
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, University of Lisbon, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal
| | - José L M Gonçalves
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, University of Lisbon, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Hermínio P Diogo
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, University of Lisbon, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Madalena Dionísio
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - José Paulo Farinha
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, University of Lisbon, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal
| | - María Teresa Viciosa
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, University of Lisbon, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal
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Fernando NL, Rathnayake DTN, Kottegoda N, Jayanetti JKDS, Karunaratne V, Jayasundara DR. Mechanistic Insights into Interactions at Urea-Hydroxyapatite Nanoparticle Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:6691-6701. [PMID: 34018756 DOI: 10.1021/acs.langmuir.1c00564] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Development of controlled release biomolecules by surface modification of hydroxyapatite nanoparticles has recently gained popularity in the areas of bionanotechnology and nanomedicine. However, optimization of these biomolecules for applications such as drug delivery, nutrient delivery requires a systematic understanding of binding mechanisms and interfacial kinetics at the molecular level between the nanomatrix and the active compound. In this research, urea is used as a model molecule to investigate its interactions with two morphologically different thin films of hydroxyapatite nanoparticles. These thin films were fabricated on quartz crystal piezoelectric sensors to selectively expose Ca2+ and PO43- sites of hydroxyapatite. Respective urea adsorption and desorption on both of these sites were monitored in situ and in real time in the phosphate buffer solution that mimics body fluids. The measured kinetic parameters, which corroborate structural predisposition for controlled release, show desorption rates that are one-tenth of the adsorption rates on both surfaces. Furthermore, the rate of desorption from the PO43- site is one-half the rate of desorption from the Ca2+ site. The Hill kinetic model was found to satisfactorily fit data, which explains cooperative binding between the hydroxyapatite nanoparticle thin film and urea. Fourier transform infrared spectra and X-ray photoemission spectra of the urea adsorbed on the above surfaces confirm the cooperative binding. It also elucidates the different binding mechanisms between urea and hydroxyapatite that contribute to the changes in the interfacial kinetics. These findings provide valuable information for structurally optimizing hydroxyapatite nanoparticle surfaces to control interfacial kinetics for applications in bionanotechnology and nanomedicine.
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Affiliation(s)
- Nimshi L Fernando
- Department of Physics, University of Colombo, Colombo 00300, Sri Lanka
| | | | - Nilwala Kottegoda
- Department of Chemistry, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka
| | | | - Veranja Karunaratne
- Department of Chemistry, University of Peradeniya, Peradeniya 20400, Sri Lanka
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Elzayat A, Tolba E, Pérez‐Pla FF, Oraby A, Muñoz‐Espí R. Increased Stability of Polysaccharide/Silica Hybrid Sub‐Millicarriers for Retarded Release of Hydrophilic Substances. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Asmaa Elzayat
- Institute of Materials Science (ICMUV) Universitat de València C/ Catedràtic José Beltrán 2 Paterna 46980 Spain
- Physics Department, Faculty of Science Mansoura University Mansoura 35516 Egypt
| | - Emad Tolba
- Polymers and Pigments Department National Research Centre Dokki Giza 12622 Egypt
| | - Francisco F. Pérez‐Pla
- Institute of Materials Science (ICMUV) Universitat de València C/ Catedràtic José Beltrán 2 Paterna 46980 Spain
| | - Ahmed Oraby
- Physics Department, Faculty of Science Mansoura University Mansoura 35516 Egypt
| | - Rafael Muñoz‐Espí
- Institute of Materials Science (ICMUV) Universitat de València C/ Catedràtic José Beltrán 2 Paterna 46980 Spain
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Lagreca E, Onesto V, Di Natale C, La Manna S, Netti PA, Vecchione R. Recent advances in the formulation of PLGA microparticles for controlled drug delivery. Prog Biomater 2020; 9:153-174. [PMID: 33058072 PMCID: PMC7718366 DOI: 10.1007/s40204-020-00139-y] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/28/2020] [Indexed: 12/14/2022] Open
Abstract
Polymeric microparticles (MPs) are recognized as very popular carriers to increase the bioavailability and bio-distribution of both lipophilic and hydrophilic drugs. Among different kinds of polymers, poly-(lactic-co-glycolic acid) (PLGA) is one of the most accepted materials for this purpose, because of its biodegradability (due to the presence of ester linkages that are degraded by hydrolysis in aqueous environments) and safety (PLGA is a Food and Drug Administration (FDA)-approved compound). Moreover, its biodegradability depends on the number of glycolide units present in the structure, indeed, lower glycol content results in an increased degradation time and conversely a higher monomer unit number results in a decreased time. Due to this feature, it is possible to design and fabricate MPs with a programmable and time-controlled drug release. Many approaches and procedures can be used to prepare MPs. The chosen fabrication methodology influences size, stability, entrapment efficiency, and MPs release kinetics. For example, lipophilic drugs as chemotherapeutic agents (doxorubicin), anti-inflammatory non-steroidal (indomethacin), and nutraceuticals (curcumin) were successfully encapsulated in MPs prepared by single emulsion technique, while water-soluble compounds, such as aptamer, peptides and proteins, involved the use of double emulsion systems to provide a hydrophilic compartment and prevent molecular degradation. The purpose of this review is to provide an overview about the preparation and characterization of drug-loaded PLGA MPs obtained by single, double emulsion and microfluidic techniques, and their current applications in the pharmaceutical industry.Graphic abstract.
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Affiliation(s)
- Elena Lagreca
- Center for Advanced Biomaterials for HealthCare@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125, Naples, Italy
| | - Valentina Onesto
- Center for Advanced Biomaterials for HealthCare@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125, Naples, Italy
| | - Concetta Di Natale
- Center for Advanced Biomaterials for HealthCare@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125, Naples, Italy.
- Interdisciplinary Research Center of Biomaterials, CRIB, University Federico II, P.leTecchio 80, 80125, Naples, Italy.
| | - Sara La Manna
- Department of Pharmacy, CIRPEB: Centro Interuniversitario di Ricerca sui Peptidi Bioattivi, University of Naples "Federico II", Via Mezzocannone 16, 80134, Naples, Italy
| | - Paolo Antonio Netti
- Center for Advanced Biomaterials for HealthCare@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125, Naples, Italy
- Interdisciplinary Research Center of Biomaterials, CRIB, University Federico II, P.leTecchio 80, 80125, Naples, Italy
- Department of Chemical, Materials and Industrial Production Engineering (DICMaPI), University of Naples Federico II, P.le Tecchio 80, 80125, Naples, Italy
| | - Raffaele Vecchione
- Center for Advanced Biomaterials for HealthCare@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125, Naples, Italy.
- Interdisciplinary Research Center of Biomaterials, CRIB, University Federico II, P.leTecchio 80, 80125, Naples, Italy.
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Tran VA, Vo VG, Shim K, Lee SW, An SSA. Multimodal Mesoporous Silica Nanocarriers for Dual Stimuli-Responsive Drug Release and Excellent Photothermal Ablation of Cancer Cells. Int J Nanomedicine 2020; 15:7667-7685. [PMID: 33116494 PMCID: PMC7549887 DOI: 10.2147/ijn.s254344] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 08/18/2020] [Indexed: 01/09/2023] Open
Abstract
Background Core-shell types of mesoporous silica nanoparticles (MSNs) with multimodal functionalities were developed for bio-imaging, controlled drug release associated with external pH, and near-infrared radiation (NIR) stimuli, and targeted and effective chemo-photothermal therapeutics. Materials and Methods We synthesized and developed a core-shell type of mesoporous silica nanocarriers for fluorescent imaging, stimuli-responsive drug release, magnetic separation, antibody targeting, and chemo-photothermal therapeutics. Also, the biocompatibility, cellular uptake, cytotoxicity, and photothermal therapy on these FS3-based nanocarriers were systematically investigated. Results Magnetic mesoporous silica nanoparticles was prepared by coating a Fe3O4 core with a mesoporous silica shell, followed by grafting with fluorescent conjugates, so-called FS3. The resulting FM3 was preloaded with therapeutic cisplatin and coated with polydopamine layer, so-called FS3P/C. Eventually, graphene oxide-wrapped FS3P/C (FS3P-G/C) exhibited high sensitivity in the dual stimuli (pH, NIR)-responsive controlled release behavior. On the other hand, Au NPs-coated FS3P/C (FS3P-A/C) exhibited more stable release behavior, irrespective of pH changes, and exhibited much more enhanced release rate under the same NIR irradiation. Notably, FS3P-A/C showed strong NIR absorption, enabling photothermal destruction of HeLa cells by its chemo-photothermal therapeutic effects under NIR irradiation (808 nm, 1.5 W/cm2). The selective uptake of FS3-based nanocarriers was confirmed in cancer cell lines including HeLa (American Type Culture Collection - ATCC) and SHSY5Y (ATCC 2266) by the images obtained from confocal laser scanning microscopy, flow cytometry, and transmission electron microscopy instruments. Cisplatin-free FS3-based nanocarriers revealed good cellular uptake and low cytotoxicity against cancerous HeLa and SH-SY5Y cells, but showed no obvious toxicity to normal HEK293 (ATCC 1573) cell. Conclusion Along with the facile synthesis of FS3-based nanocarriers, the integration of all these strategies into one single unit will be a prospective candidate for biomedical applications, especially in chemo-photothermal therapeutics, targeted delivery, and stimuli-responsive controlled drug release against multiple cancer cell types.
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Affiliation(s)
- Vy Anh Tran
- Department of Chemical and Biological Engineering, Gachon University, Seongnam, Republic of Korea.,NTTHi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh 700000, Vietnam
| | - Van Giau Vo
- Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam.,Department of Industrial and Environmental Engineering, Graduate School of Environment, Gachon University, Seongnam 13120, Republic of Korea
| | - Kyuhwan Shim
- Department of Neurology, Veterans Medical Research Institute, Veterans Health Service Medical Center, Seoul 05368, Republic of Korea
| | - Sang-Wha Lee
- Department of Chemical and Biological Engineering, Gachon University, Seongnam, Republic of Korea
| | - Seong Soo A An
- Department of BioNano Technology, Gachon University, Seongnam 13120, Republic of Korea
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Donegatti TA, Lobato A, Duek EAR, Moreira Gonçalves L, Alves Pereira E. Derivatization-free determination of aminoglycosides by CZE-UV in pharmaceutical formulations. Electrophoresis 2020; 41:1576-1583. [PMID: 32683725 DOI: 10.1002/elps.202000160] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/11/2020] [Accepted: 07/13/2020] [Indexed: 12/11/2022]
Abstract
Aminoglycosides are a relevant class of antibiotics widely used by medics and veterinaries. There are a variety of reasons that make their determination relevant, such as quality control, environment and food contamination assessment, drug-release studies, among others. The lack of a chromophore makes aminoglycoside spectrophotometric detection particularly challenging, often requiring derivatization. In this work, an indirect detection method, making use of imidazole as a probe, applying CZE was successfully tested. It did not require derivatization, which simplified the sample preparation. Suitable figures of merit were obtained; recoveries between 95 and 105%, adequate repeatability and precision, correlation coefficients (r) above 0.998, and limits of detection (LODs) of 3.2 and 11 mg/L for gentamicin and paromomycin, respectively. As a proof-of-concept, it was also applied in a simple controlled release experiment that was well fitted using the Hill equation.
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Affiliation(s)
- Tiago Augusto Donegatti
- Departamento de Física, Química e Matemática, Universidade Federal de São Carlos - UFSCar, Sorocaba, São Paulo, Brazil
| | - Alnilan Lobato
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo (USP), São Paulo, São Paulo, Brazil
| | - Eliana A R Duek
- Biomaterials Laboratory, Medical and Health Sciences Faculty, Pontifical University Catholic of São Paulo (PUC-SP), Sorocaba, São Paulo, Brazil
| | - Luís Moreira Gonçalves
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo (USP), São Paulo, São Paulo, Brazil
| | - Elisabete Alves Pereira
- Departamento de Física, Química e Matemática, Universidade Federal de São Carlos - UFSCar, Sorocaba, São Paulo, Brazil
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Hussain T, Waters LJ, Parkes GM, Shahzad Y. Microwave processed solid dispersions for enhanced dissolution of gemfibrozil using non-ordered mesoporous silica. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.02.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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