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Carazo E, Borrego-Sánchez A, García-Villén F, Sánchez-Espejo R, Cerezo P, Aguzzi C, Viseras C. Advanced Inorganic Nanosystems for Skin Drug Delivery. CHEM REC 2018; 18:891-899. [DOI: 10.1002/tcr.201700061] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 12/22/2017] [Indexed: 01/01/2023]
Affiliation(s)
- E. Carazo
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy; University of Granada; Campus of Cartuja, 18071 s/n Granada Spain
| | - A. Borrego-Sánchez
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy; University of Granada; Campus of Cartuja, 18071 s/n Granada Spain
- Andalusian Institute of Earth Sciences; CSIC-University of Granada; Avda. de Las Palmeras 4 18100 Armilla (Granada) Spain
| | - F. García-Villén
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy; University of Granada; Campus of Cartuja, 18071 s/n Granada Spain
| | - R. Sánchez-Espejo
- Andalusian Institute of Earth Sciences; CSIC-University of Granada; Avda. de Las Palmeras 4 18100 Armilla (Granada) Spain
| | - P. Cerezo
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy; University of Granada; Campus of Cartuja, 18071 s/n Granada Spain
| | - C. Aguzzi
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy; University of Granada; Campus of Cartuja, 18071 s/n Granada Spain
| | - C. Viseras
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy; University of Granada; Campus of Cartuja, 18071 s/n Granada Spain
- Andalusian Institute of Earth Sciences; CSIC-University of Granada; Avda. de Las Palmeras 4 18100 Armilla (Granada) Spain
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Carazo E, Borrego-Sánchez A, García-Villén F, Sánchez-Espejo R, Aguzzi C, Viseras C, Sainz-Díaz CI, Cerezo P. Assessment of halloysite nanotubes as vehicles of isoniazid. Colloids Surf B Biointerfaces 2017; 160:337-344. [PMID: 28957775 DOI: 10.1016/j.colsurfb.2017.09.036] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 09/11/2017] [Accepted: 09/13/2017] [Indexed: 10/18/2022]
Abstract
Equilibrium and thermodynamic aspects of the adsorption of isoniazid (INH) onto halloysite nanotubes (HLNTs) and characteristics of the resultant drug/nanocarrier systems are investigated. Equilibrium studies were performed in aqueous medium at different times, temperatures and drug concentrations. The overall adsorption process was explained as the result of two simple processes: adsorption on the activated sites of HLNTs and precipitation of INH on HLNTs surface. Formation of the INH-loaded HLNTs was spontaneous, endothermic and endoentropic, increasing the thermodynamic stability of the system (ΔH=70.40kJ/mol; ΔS=0.2519kJ/molK). Solid state characterization corroborated the effective interaction between the components that was also described by modeling at molecular level by quantum mechanics calculations along with empirical interatomic potentials. Transmission electron microphotographs confirmed the double allocation and homogeneous distribution of INH in the nanohybrids. FTIR spectra revealed the interaction via hydrogen bonds between the inner hydroxyl groups of HLNTs and N in INH molecules. Loading of INH in the nanohybrids was approximately 20% w/w. Effective loading of INH and activation energies of the interactions enable to propose the designed nanohybrids in the development of modified drug delivery systems.
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Affiliation(s)
- E Carazo
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Campus of Cartuja s/n, 18071, Granada, Spain
| | - A Borrego-Sánchez
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Campus of Cartuja s/n, 18071, Granada, Spain; Andalusian Institute of Earth Sciences, CSIC-University of Granada, Avda. de Las Palmeras 4, 18100, Armilla (Granada), Spain
| | - F García-Villén
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Campus of Cartuja s/n, 18071, Granada, Spain
| | - R Sánchez-Espejo
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Campus of Cartuja s/n, 18071, Granada, Spain
| | - C Aguzzi
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Campus of Cartuja s/n, 18071, Granada, Spain
| | - C Viseras
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Campus of Cartuja s/n, 18071, Granada, Spain; Andalusian Institute of Earth Sciences, CSIC-University of Granada, Avda. de Las Palmeras 4, 18100, Armilla (Granada), Spain.
| | - C I Sainz-Díaz
- Andalusian Institute of Earth Sciences, CSIC-University of Granada, Avda. de Las Palmeras 4, 18100, Armilla (Granada), Spain
| | - P Cerezo
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Campus of Cartuja s/n, 18071, Granada, Spain
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Aguzzi C, Viseras C, Cerezo P, Salcedo I, Sánchez-Espejo R, Valenzuela C. Release kinetics of 5-aminosalicylic acid from halloysite. Colloids Surf B Biointerfaces 2013; 105:75-80. [DOI: 10.1016/j.colsurfb.2012.12.041] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Accepted: 12/16/2012] [Indexed: 12/01/2022]
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