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Sousa PSDA, Rodrigues RRL, Souza VMRD, Araujo SSDM, Franco MSCR, Santos LBPD, Ribeiro FDOS, Paiva Junior JR, Araujo-Nobre ARD, Rodrigues KADF, Silva DAD, Feitosa JPDA, Perfeito MLG, Véras LMC, Rocha JA. Antimicrobial activity of nanoparticles based on carboxymethylated cashew gum and epiisopiloturine: In vitro and in silico studies. Int J Biol Macromol 2024; 274:133048. [PMID: 38857734 DOI: 10.1016/j.ijbiomac.2024.133048] [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: 10/30/2023] [Revised: 06/04/2024] [Accepted: 06/07/2024] [Indexed: 06/12/2024]
Abstract
Epiisopiloturine (EPI) is a compound found in jaborandi leaves with antiparasitic activity, which can be enhanced when incorporated into nanoparticles (NP). Cashew Gum (CG), modified by carboxymethylation, is used to produce polymeric nanomaterials with biological activity. In this study, we investigated the antimicrobial potential of carboxymethylated CG (CCG) NP containing EPI (NPCCGE) and without the alkaloid (NPCCG) against bacteria and parasites of the genus Leishmania. We conducted theoretical studies, carboxymethylated CG, synthesized NP by nanoprecipitation, characterized them, and tested them in vitro. Theoretical studies confirmed the stability of modified carbohydrates and showed that the EPI-4A30 complex had the best interaction energy (-8.47 kcal/mol). CCG was confirmed by FT-IR and presented DSabs of 0.23. NPCCG and NPCCGE had average sizes of 221.94 ± 144.086 nm and 247.36 ± 3.827 nm, respectively, with homogeneous distribution and uniform surfaces. No NP showed antibacterial activity or cytotoxicity to macrophages. NPCCGE demonstrated antileishmanial activity against L. amazonensis, both in promastigote forms (IC50 = 9.52 μg/mL, SI = 42.01) and axenic amastigote forms (EC50 = 6.6 μg/mL, SI = 60.60). The results suggest that nanostructuring EPI in CCG enhances its antileishmanial activity.
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Affiliation(s)
- Paulo Sérgio de Araujo Sousa
- Programa de Pós-Graduação em Biotecnologia, PPGBIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil; Núcleo de Pesquisa em Biodiversidade e Biotecnologia, BIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil; Grupo de Pesquisa em Química Medicinal e Biotecnologia, QUIMEBIO, Universidade Federal do Maranhão, UFMA, São Bernardo, Maranhão, MA, Brasil
| | - Raiza Raianne Luz Rodrigues
- Programa de Pós-Graduação em Biotecnologia, PPGBIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil; Núcleo de Pesquisa em Biodiversidade e Biotecnologia, BIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil; Laboratório de Doenças Infecciosas, LADIC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil
| | - Vanessa Maria Rodrigues de Souza
- Programa de Pós-Graduação em Biotecnologia, PPGBIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil; Núcleo de Pesquisa em Biodiversidade e Biotecnologia, BIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil; Laboratório de Doenças Infecciosas, LADIC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil
| | - Sansara Sanny de Mendonça Araujo
- Programa de Pós-Graduação em Biotecnologia, PPGBIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil; Núcleo de Pesquisa em Biodiversidade e Biotecnologia, BIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil
| | | | - Luma Brisa Pereira Dos Santos
- Programa de Pós-Graduação em Biotecnologia, PPGBIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil; Núcleo de Pesquisa em Biodiversidade e Biotecnologia, BIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil
| | - Fábio de Oliveira Silva Ribeiro
- Núcleo de Pesquisa em Biodiversidade e Biotecnologia, BIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil
| | - José Ribamar Paiva Junior
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, UFC, Fortaleza, Ceará, CE, Brasil
| | - Alyne Rodrigues de Araujo-Nobre
- Programa de Pós-Graduação em Biotecnologia, PPGBIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil; Núcleo de Pesquisa em Biodiversidade e Biotecnologia, BIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil
| | - Klinger Antonio da Franca Rodrigues
- Programa de Pós-Graduação em Biotecnologia, PPGBIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil; Núcleo de Pesquisa em Biodiversidade e Biotecnologia, BIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil; Laboratório de Doenças Infecciosas, LADIC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil
| | - Durcilene Alves da Silva
- Programa de Pós-Graduação em Biotecnologia, PPGBIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil; Núcleo de Pesquisa em Biodiversidade e Biotecnologia, BIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil
| | | | - Márcia Luana Gomes Perfeito
- Núcleo de Pesquisa em Biodiversidade e Biotecnologia, BIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil
| | - Leiz Maria Costa Véras
- Programa de Pós-Graduação em Biotecnologia, PPGBIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil; Núcleo de Pesquisa em Biodiversidade e Biotecnologia, BIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil
| | - Jefferson Almeida Rocha
- Programa de Pós-Graduação em Biotecnologia, PPGBIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil; Núcleo de Pesquisa em Biodiversidade e Biotecnologia, BIOTEC, Universidade Federal do Delta do Parnaíba, UFDPar, Parnaíba, Piauí, PI, Brasil; Grupo de Pesquisa em Química Medicinal e Biotecnologia, QUIMEBIO, Universidade Federal do Maranhão, UFMA, São Bernardo, Maranhão, MA, Brasil.
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Amaral RG, de Andrade LRM, Andrade LN, Loureiro KC, Souto EB, Severino P. Cashew Gum: A Review of Brazilian Patents and Pharmaceutical Applications with a Special Focus on Nanoparticles. MICROMACHINES 2022; 13:mi13071137. [PMID: 35888956 PMCID: PMC9315767 DOI: 10.3390/mi13071137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/29/2022] [Accepted: 07/12/2022] [Indexed: 12/10/2022]
Abstract
Natural polysaccharides are structures composed of highly diversified biological macromolecules whose properties have been exploited by a diversity of industries. Until 2018, the polysaccharides market raised more than US $ 12 billion worldwide, while an annual growth forecast of 4.8% is expected by 2026. The food industry is largely responsible for the consumption of this plant-source material, produced by microbiological fermentation. Among the used polysaccharides, gums are hydrocolloids obtained from a variety of sources and in different forms, being composed of salts of calcium, potassium, magnesium and sugar monomers. Their non-toxicity, hydrophilicity, viscosity, biodegradability, biocompatibility and sustainable production are among their main advantages. Although Brazil is amongst the largest producers of cashew gum, reaching 50 tons per year, the polysaccharide is not being used to its full potential, in particular, with regard to its uses in pharmaceuticals. Cashew gum (CG), obtained from Anacardium occidentale L., caught the attention of the industry only in 1970; in 1990, its production started to grow. Within the Brazilian academy, the groups from the Federal University of Ceará and Piauí are devoting the most efforts to the study of cashew gum, with a total of 31 articles already published. The number of patents in the country for innovations containing cashew tree gum has reached 14, including the technological process for the purification of cashew tree gum, comparison of physical and chemical methods for physicochemical characterizations, and optimum purification methodology. This scenario opens a range of opportunities for the use of cashew gum, mainly in the development of new pharmaceutical products, with a special interest in nanoparticles.
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Affiliation(s)
- Ricardo G. Amaral
- Department of Physiology, Federal University of Sergipe, São Cristóvão, Sergipe 49100-000, Brazil;
| | - Lucas R. Melo de Andrade
- Laboratory of Pharmaceutical Technology, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul 79070-900, Brazil;
| | - Luciana N. Andrade
- Department of Medicine, Federal University of Sergipe, Lagarto, Sergipe 49400-000, Brazil;
| | - Kahynna C. Loureiro
- Institute of Technology and Research, University of Tiradentes, Aracaju, Sergipe 49032-490, Brazil;
| | - Eliana B. Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- REQUIMTE/UCIBIO, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- Correspondence: (E.B.S.); (P.S.)
| | - Patrícia Severino
- Institute of Technology and Research, University of Tiradentes, Aracaju, Sergipe 49032-490, Brazil;
- Correspondence: (E.B.S.); (P.S.)
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Zhang M, Yang M, Woo MW, Li Y, Han W, Dang X. High-mechanical strength carboxymethyl chitosan-based hydrogel film for antibacterial wound dressing. Carbohydr Polym 2021; 256:117590. [DOI: 10.1016/j.carbpol.2020.117590] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 12/25/2020] [Accepted: 12/28/2020] [Indexed: 12/14/2022]
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Karaaslan M, Şengün F, Cansu Ü, Başyiğit B, Sağlam H, Karaaslan A. Gum arabic/maltodextrin microencapsulation confers peroxidation stability and antimicrobial ability to pepper seed oil. Food Chem 2020; 337:127748. [PMID: 32818708 DOI: 10.1016/j.foodchem.2020.127748] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 02/08/2023]
Abstract
In this study, pepper seed oil (PSO) was microencapsulated by spray drying at optimum conditions: oil/total solid material at 20% (w/w), gum Arabic/maltodextrin (GA/MD) at 1/5 (w/w), and air inlet temperature of 184 °C. Particle size distribution and morphology of the PSO powder (PSOP) were determined by a laser particle diameter analyzer and scanning electron microscopy (SEM). Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) were employed to identify the specific chemical groups of PSO, MD, and GA in the PSO-GA/MD complexes. The thermal stability of PSOP was evaluated by thermogravimetric (TGA) and differential thermal analysis (DTA). PSOP displayed inhibitory activity against Staphylococcus aureus, Pseudomonas aeruginosa, and Enterococcus faecalis although PSO had an antimicrobial activity against only Staphylococcus aureus. GA/MD microencapsulation resulted in significant preservation of PSO against oxidation during storage period.
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Affiliation(s)
- Mehmet Karaaslan
- Harran University, Engineering Faculty, Food Engineering Department, 63010 Şanlıurfa, Turkey.
| | - Fatih Şengün
- Harran University, Engineering Faculty, Food Engineering Department, 63010 Şanlıurfa, Turkey
| | - Ümran Cansu
- Harran University, Vocational School, Food Processing Programme, 63250 Şanlıurfa, Turkey
| | - Bülent Başyiğit
- Harran University, Engineering Faculty, Food Engineering Department, 63010 Şanlıurfa, Turkey
| | - Hidayet Sağlam
- Kilis 7 Aralık University, Faculty of Arts and Sciences, Molecular Biology and Genetics Department, 79000 Kilis, Turkey
| | - Asliye Karaaslan
- Harran University, Vocational School, Food Processing Programme, 63250 Şanlıurfa, Turkey
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Self-assembling cashew gum-graft-polylactide copolymer nanoparticles as a potential amphotericin B delivery matrix. Int J Biol Macromol 2020; 152:492-502. [PMID: 32097738 DOI: 10.1016/j.ijbiomac.2020.02.166] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 02/14/2020] [Accepted: 02/15/2020] [Indexed: 01/13/2023]
Abstract
Amphotericin B is an antibiotic used in the treatment of fungal disease and leishmania; however, it exhibits side effects to patients, hindering its wider application. Therefore, nanocarriers have been investigated as delivery systems for amphotericin B (AMB) in order to decrease its toxicity, besides increase bioavailability and solubility. Amphiphilic copolymers are interesting materials to encapsulate hydrophobic drugs such as AMB, hence copolymers of cashew gum (CG) and l-lactide (LA) were synthesized using two different CG:LA molar ratios (1:1 and 1:10). Data obtained revealed that copolymer nanoparticles present similar figures for particle sizes and zeta potentials; however, particle size of encapsulated AMB increases if compared to unloaded nanoparticles. The 1:10 nanoparticle sample has better stability although higher polydispersity index (PDI) if compared to 1:1 sample. High amphotericin (AMB) encapsulation efficiencies and low hemolysis were obtained. AMB loaded copolymers show lower aggregation pattern than commercial AMB solution. AMB loaded nanoparticles show antifungal activities against four C. albicans strains. It can be inferred that cashew gum/polylactide copolymers have potential as nanocarrier systems for AMB.
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Cruz MV, Jacobowski AC, Macedo ML, Batista KA, Fernandes KF. Immobilization of antimicrobial trypsin inhibitors onto cashew gum polysaccharide/PVA films. Int J Biol Macromol 2019; 127:433-439. [DOI: 10.1016/j.ijbiomac.2019.01.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 12/31/2018] [Accepted: 01/03/2019] [Indexed: 12/14/2022]
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The potential of cashew gum functionalization as building blocks for layer-by-layer films. Carbohydr Polym 2017; 174:849-857. [DOI: 10.1016/j.carbpol.2017.06.055] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 06/01/2017] [Accepted: 06/15/2017] [Indexed: 01/08/2023]
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Magalhães GA, Moura Neto E, Sombra VG, Richter AR, Abreu CMWS, Feitosa JPA, Paula HCB, Goycoolea FM, de Paula RCM. Chitosan/Sterculia striata polysaccharides nanocomplex as a potential chloroquine drug release device. Int J Biol Macromol 2016; 88:244-53. [PMID: 27041650 DOI: 10.1016/j.ijbiomac.2016.03.070] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 03/29/2016] [Accepted: 03/31/2016] [Indexed: 11/29/2022]
Abstract
Nanoparticles are produced by means of polyelectrolyte complexation (PEC) of oppositely charged polycationic chitosan (CH) with polyanionic polysaccharide extracted from Sterculia striata exudates (rhamnogalacturonoglycan (RG)-type polysaccharide). The nanoparticles formed with low-molar-mass CH are larger than those formed with high-molar-mass CH. This behavior is in contrast with that previously observed for other systems and may be attributed to different mechanisms related to the association of CH with RG of higher persistence length chain than that of CH. Nanoparticles harnessed with a charge ratio (n(+)/n(-)) of <1 are smaller than particles with an excess of polycations. Particles with hydrodynamic sizes smaller than 100nm are achieved using a polyelectrolyte concentration of 10(-4)gmL(-1) and charge ratio (n(+)/n(-)) of <1. The CH/RG nanoparticles are associated with chloroquine (CQ) with an efficiency of 28% and release it for up to ∼60% within ∼10h, whereas in the latter, only ∼40% of the CQ was released after 24h. The main factor that influenced drug release rate is the nanoparticle charge ratio.
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Affiliation(s)
- Guilherme A Magalhães
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil, CP 6021, CEP 60455-760
| | - Erico Moura Neto
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil, CP 6021, CEP 60455-760
| | - Venícios G Sombra
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil, CP 6021, CEP 60455-760
| | - Ana R Richter
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil, CP 6021, CEP 60455-760
| | - Clara M W S Abreu
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil, CP 6021, CEP 60455-760
| | - Judith P A Feitosa
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil, CP 6021, CEP 60455-760
| | - Haroldo C B Paula
- Departamento de Química Analitica e Fisico-Química, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil, CP 6021,CEP 60455-760
| | | | - Regina C M de Paula
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil, CP 6021, CEP 60455-760.
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Ribeiro AJ, de Souza FRL, Bezerra JMNA, Oliveira C, Nadvorny D, de La Roca Soares MF, Nunes LCC, Silva-Filho EC, Veiga F, Soares Sobrinho JL. Gums' based delivery systems: Review on cashew gum and its derivatives. Carbohydr Polym 2016; 147:188-200. [PMID: 27178924 DOI: 10.1016/j.carbpol.2016.02.042] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 02/06/2016] [Accepted: 02/14/2016] [Indexed: 11/28/2022]
Abstract
The development of delivery systems using natural polymers such as gums offers distinct advantages, such as, biocompatibility, biodegradability, and cost effectiveness. Cashew gum (CG) has rheological and mucoadhesive properties that can find many applications, among which the design of delivery systems for drugs and other actives such as larvicide compounds. In this review CG is characterized from its source through to the process of purification and chemical modification highlighting its physicochemical properties and discussing its potential either for micro and nanoparticulate delivery systems. Chemical modifications of CG increase its reactivity towards the design of delivery systems, which provide a sustained release effect for larvicide compounds. The purification and, the consequent characterization of CG either original or modified are of utmost importance and is still a continuing challenge when selecting the suitable CG derivative for the delivery of larvicide compounds.
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Affiliation(s)
- António J Ribeiro
- Faculdade de Farmácia, Universidade de Coimbra, 3000-548 Coimbra, Portugal; I3S, Instituto de Investigação e Inovação em Saúde, IBMC-Instituto de Biologia Molecular e Celular, Genetics of Cognitive Dysfunction, Rua do Campo Alegre 823, 4150-180 Porto, Portugal.
| | - Flávia R Lucena de Souza
- Núcleo de Controle de Qualidade de Medicamentos e Correlatos-NCQMC, Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco-UFPE, Brazil
| | - Janira M N A Bezerra
- Núcleo de Controle de Qualidade de Medicamentos e Correlatos-NCQMC, Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco-UFPE, Brazil
| | - Claudia Oliveira
- Faculdade de Farmácia, Universidade de Coimbra, 3000-548 Coimbra, Portugal; I3S, Instituto de Investigação e Inovação em Saúde, IBMC-Instituto de Biologia Molecular e Celular, Genetics of Cognitive Dysfunction, Rua do Campo Alegre 823, 4150-180 Porto, Portugal
| | - Daniela Nadvorny
- Núcleo de Controle de Qualidade de Medicamentos e Correlatos-NCQMC, Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco-UFPE, Brazil
| | - Monica F de La Roca Soares
- Núcleo de Controle de Qualidade de Medicamentos e Correlatos-NCQMC, Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco-UFPE, Brazil
| | - Lívio C C Nunes
- Laboratório Interdisciplinar de Materiais Avançados-LIMAV, Centro de Ciências da Natureza-CCN, Universidade Federal do Piauí-UFPI, Brazil
| | - Edson C Silva-Filho
- Laboratório Interdisciplinar de Materiais Avançados-LIMAV, Centro de Ciências da Natureza-CCN, Universidade Federal do Piauí-UFPI, Brazil
| | - Francisco Veiga
- CNC.IBILI, Universidade de Coimbra, 3000-548 Coimbra, Portugal; Faculdade de Farmácia, Universidade de Coimbra, 3000-548 Coimbra, Portugal
| | - José L Soares Sobrinho
- Núcleo de Controle de Qualidade de Medicamentos e Correlatos-NCQMC, Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco-UFPE, Brazil
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Monteiro AADS, Richter AR, Maciel JDS, Feitosa JPA, Paula HCB, Monteiro de Paula RC. Efeito da modificação química na solubilidade e intumescimento de microesferas à base de goma do cajueiro carboximetilada e quitosana. POLIMEROS 2015. [DOI: 10.1590/0104-1428.1779] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Resumo Esferas de goma do cajueiro carboximetilada e quitosana foram produzidas via complexação polieletrolítica. As esferas foram modificadas quimicamente de modo a obter-se sistemas estáveis em meio ácido e que apresentassem uma resposta de intumescimento diferenciado frente à variação de pH. As esferas foram modificadas por reacetilação da quitosana e por reticulação com epicloridrina, glutaraldeído e genipina. As esferas reticuladas foram caracterizadas por meio de técnicas como: espectroscopia de absorção no infravermelho, análise termogravimétrica, microscopia eletrônica de varredura e quanto à solubilidade em pH 1,2 e ao intumescimento. As esferas de goma do cajueiro carboximetilada e quitosana reacetilada, e as esferas reticuladas com epicloridrina apresentaram baixa resistência à dissolução em pH 1,2. Entretanto, as esferas reticuladas com glutaraldeído e genipina apresentaram resistência à dissolução e baixo coeficiente de difusão. As esferas reticuladas com genipina apresentaram um grau de intumescimento maior do que as esferas reticuladas com glutaraldeído nas concentrações de 3% e 5% (massa/volume). As esferas reticuladas com genipina apresentaram intumescimento responsivo à variação de pH e estabilidade em pH 1,2, indicando que esses sistemas possuem potencial para uso em sistemas de liberação controlada de fármacos por via oral.
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Luo Y, Wang Q. Recent development of chitosan-based polyelectrolyte complexes with natural polysaccharides for drug delivery. Int J Biol Macromol 2014; 64:353-67. [DOI: 10.1016/j.ijbiomac.2013.12.017] [Citation(s) in RCA: 518] [Impact Index Per Article: 51.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 12/03/2013] [Accepted: 12/09/2013] [Indexed: 01/20/2023]
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de Souza JRR, Feitosa JP, Ricardo NM, Trevisan MTS, de Paula HCB, Ulrich CM, Owen RW. Spray-drying encapsulation of mangiferin using natural polymers. Food Hydrocoll 2013. [DOI: 10.1016/j.foodhyd.2013.02.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Paula HCB, Rodrigues MLL, Ribeiro WLC, Stadler AS, Paula RCM, Abreu FOMS. Protective effect of cashew gum nanoparticles on natural larvicide from Moringa oleifera seeds. J Appl Polym Sci 2011. [DOI: 10.1002/app.35230] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Preparation and characterization of chitosan/cashew gum beads loaded with Lippia sidoides essential oil. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2011. [DOI: 10.1016/j.msec.2010.08.013] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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de Souza JRR, de Carvalho JIX, Trevisan MTS, de Paula RC, Ricardo NM, Feitosa JP. Chitosan-coated pectin beads: Characterization and in vitro release of mangiferin. Food Hydrocoll 2009. [DOI: 10.1016/j.foodhyd.2009.06.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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