Physico-chemical characterization and cytotoxicity evaluation of curcumin loaded in chitosan/chondroitin sulfate nanoparticles
In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range o...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Jardim, Katiúscia Vieira [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015transfer abstract |
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| Umfang: |
11 |
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| Übergeordnetes Werk: |
Enthalten in: Adsorption of various metals by carboxymethyl-β-cyclodextrin-modified Zn - Kameda, Tomohito ELSEVIER, 2020, Amsterdam |
|---|---|
| Übergeordnetes Werk: |
volume:56 ; year:2015 ; day:1 ; month:11 ; pages:294-304 ; extent:11 |
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| DOI / URN: |
10.1016/j.msec.2015.06.036 |
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| 520 | |a In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L−1 free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively. | ||
| 520 | |a In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L−1 free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively. | ||
| 700 | 1 | |a Joanitti, Graziella Anselmo |4 oth | |
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10.1016/j.msec.2015.06.036 doi GBVA2015016000004.pica (DE-627)ELV018677185 (ELSEVIER)S0928-4931(15)30169-7 DE-627 ger DE-627 rakwb eng 600 600 DE-600 550 VZ 38.30 bkl 58.45 bkl 38.69 bkl 56.20 bkl Jardim, Katiúscia Vieira verfasserin aut Physico-chemical characterization and cytotoxicity evaluation of curcumin loaded in chitosan/chondroitin sulfate nanoparticles 2015transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L−1 free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively. In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L−1 free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively. Joanitti, Graziella Anselmo oth Azevedo, Ricardo Bentes oth Parize, Alexandre Luis oth Enthalten in Elsevier Kameda, Tomohito ELSEVIER Adsorption of various metals by carboxymethyl-β-cyclodextrin-modified Zn 2020 Amsterdam (DE-627)ELV003774007 volume:56 year:2015 day:1 month:11 pages:294-304 extent:11 https://doi.org/10.1016/j.msec.2015.06.036 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-GGO 38.30 Mineralogie VZ 58.45 Gesteinshüttenkunde VZ 38.69 Bodenkunde: Sonstiges Geowissenschaften VZ 56.20 Ingenieurgeologie Bodenmechanik VZ AR 56 2015 1 1101 294-304 11 045F 600 |
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10.1016/j.msec.2015.06.036 doi GBVA2015016000004.pica (DE-627)ELV018677185 (ELSEVIER)S0928-4931(15)30169-7 DE-627 ger DE-627 rakwb eng 600 600 DE-600 550 VZ 38.30 bkl 58.45 bkl 38.69 bkl 56.20 bkl Jardim, Katiúscia Vieira verfasserin aut Physico-chemical characterization and cytotoxicity evaluation of curcumin loaded in chitosan/chondroitin sulfate nanoparticles 2015transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L−1 free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively. In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L−1 free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively. Joanitti, Graziella Anselmo oth Azevedo, Ricardo Bentes oth Parize, Alexandre Luis oth Enthalten in Elsevier Kameda, Tomohito ELSEVIER Adsorption of various metals by carboxymethyl-β-cyclodextrin-modified Zn 2020 Amsterdam (DE-627)ELV003774007 volume:56 year:2015 day:1 month:11 pages:294-304 extent:11 https://doi.org/10.1016/j.msec.2015.06.036 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-GGO 38.30 Mineralogie VZ 58.45 Gesteinshüttenkunde VZ 38.69 Bodenkunde: Sonstiges Geowissenschaften VZ 56.20 Ingenieurgeologie Bodenmechanik VZ AR 56 2015 1 1101 294-304 11 045F 600 |
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10.1016/j.msec.2015.06.036 doi GBVA2015016000004.pica (DE-627)ELV018677185 (ELSEVIER)S0928-4931(15)30169-7 DE-627 ger DE-627 rakwb eng 600 600 DE-600 550 VZ 38.30 bkl 58.45 bkl 38.69 bkl 56.20 bkl Jardim, Katiúscia Vieira verfasserin aut Physico-chemical characterization and cytotoxicity evaluation of curcumin loaded in chitosan/chondroitin sulfate nanoparticles 2015transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L−1 free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively. In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L−1 free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively. Joanitti, Graziella Anselmo oth Azevedo, Ricardo Bentes oth Parize, Alexandre Luis oth Enthalten in Elsevier Kameda, Tomohito ELSEVIER Adsorption of various metals by carboxymethyl-β-cyclodextrin-modified Zn 2020 Amsterdam (DE-627)ELV003774007 volume:56 year:2015 day:1 month:11 pages:294-304 extent:11 https://doi.org/10.1016/j.msec.2015.06.036 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-GGO 38.30 Mineralogie VZ 58.45 Gesteinshüttenkunde VZ 38.69 Bodenkunde: Sonstiges Geowissenschaften VZ 56.20 Ingenieurgeologie Bodenmechanik VZ AR 56 2015 1 1101 294-304 11 045F 600 |
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10.1016/j.msec.2015.06.036 doi GBVA2015016000004.pica (DE-627)ELV018677185 (ELSEVIER)S0928-4931(15)30169-7 DE-627 ger DE-627 rakwb eng 600 600 DE-600 550 VZ 38.30 bkl 58.45 bkl 38.69 bkl 56.20 bkl Jardim, Katiúscia Vieira verfasserin aut Physico-chemical characterization and cytotoxicity evaluation of curcumin loaded in chitosan/chondroitin sulfate nanoparticles 2015transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L−1 free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively. In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L−1 free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively. Joanitti, Graziella Anselmo oth Azevedo, Ricardo Bentes oth Parize, Alexandre Luis oth Enthalten in Elsevier Kameda, Tomohito ELSEVIER Adsorption of various metals by carboxymethyl-β-cyclodextrin-modified Zn 2020 Amsterdam (DE-627)ELV003774007 volume:56 year:2015 day:1 month:11 pages:294-304 extent:11 https://doi.org/10.1016/j.msec.2015.06.036 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-GGO 38.30 Mineralogie VZ 58.45 Gesteinshüttenkunde VZ 38.69 Bodenkunde: Sonstiges Geowissenschaften VZ 56.20 Ingenieurgeologie Bodenmechanik VZ AR 56 2015 1 1101 294-304 11 045F 600 |
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10.1016/j.msec.2015.06.036 doi GBVA2015016000004.pica (DE-627)ELV018677185 (ELSEVIER)S0928-4931(15)30169-7 DE-627 ger DE-627 rakwb eng 600 600 DE-600 550 VZ 38.30 bkl 58.45 bkl 38.69 bkl 56.20 bkl Jardim, Katiúscia Vieira verfasserin aut Physico-chemical characterization and cytotoxicity evaluation of curcumin loaded in chitosan/chondroitin sulfate nanoparticles 2015transfer abstract 11 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L−1 free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively. In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L−1 free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively. Joanitti, Graziella Anselmo oth Azevedo, Ricardo Bentes oth Parize, Alexandre Luis oth Enthalten in Elsevier Kameda, Tomohito ELSEVIER Adsorption of various metals by carboxymethyl-β-cyclodextrin-modified Zn 2020 Amsterdam (DE-627)ELV003774007 volume:56 year:2015 day:1 month:11 pages:294-304 extent:11 https://doi.org/10.1016/j.msec.2015.06.036 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-GGO 38.30 Mineralogie VZ 58.45 Gesteinshüttenkunde VZ 38.69 Bodenkunde: Sonstiges Geowissenschaften VZ 56.20 Ingenieurgeologie Bodenmechanik VZ AR 56 2015 1 1101 294-304 11 045F 600 |
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Physico-chemical characterization and cytotoxicity evaluation of curcumin loaded in chitosan/chondroitin sulfate nanoparticles |
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In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L−1 free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively. |
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In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L−1 free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively. |
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In this study, chitosan (CTS)/chondroitin sulfate (CS) nanoparticles, both pure and curcumin-loaded, were synthesized by ionic gelation. This method is simple and efficient for obtaining nanoparticles with a low polydispersity index (0.151±0.03 to 0.563±0.07) and hydrodynamic diameter in the range of 175.7±2.5 to 710.2±8.9nm, for this study. Samples have a relatively high zeta potential value, a fact that indicates that the colloidal system has good physical and chemical stabilities. The efficiency of the curcumin encapsulation in nanoparticles, which ranged from 62.4±0.61% to 68.3±0.88%, depends on the pH of the chitosan solution. The release of curcumin from the nanoparticles was enabled by a diffusion mechanism, with fast release in a phosphate buffer solution at pH6.8. The assaying of cell viability by the MTT test showed that the presence of both free curcumin and curcumin in the nanoencapsulated form leads to a statistically significant reduction in the viability of A549 cells, by comparison with the control group. The most significant reductions in cell viability of 41.1% and 60.4% (p<0.0001) were observed after 72h, by using 40μmol∙L−1 free curcumin and curcumin encapsulated in CTS/CS nanoparticles with the chitosan solution at pH6.0, respectively. |
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