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Acid-sensitive charge-reversal co-assembled polyurethane nanomicelles as drug delivery carriers. Colloids Surf B Biointerfaces 2021; 209:112203. [PMID: 34794067 DOI: 10.1016/j.colsurfb.2021.112203] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 10/27/2021] [Accepted: 10/31/2021] [Indexed: 11/23/2022]
Abstract
In order to obtain drug delivery carriers with good stability in blood and high cellular uptake efficiency, carboxyl groups and tertiary amine groups were respectively introduced into polyurethane to synthesize two kinds of amphiphilic polyurethanes with opposite charges (PUC and PUN). Their structures were characterized by Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (1H NMR) spectroscopy and gel permeation chromatography (GPC). PUC-PUN co-assembled nanomicelles were prepared by electrostatic interaction between PUC and PUN micelles, which showed acid-sensitive property. When the pH of the solution was decreased from 7.4 to 6.5, PUC-PUN-1 micelles showed negative-to-positive charge-reversal property among these micelles. The results of stability and cell experiments demonstrated that PUC-PUN-1 micelles not only had excellent stability in simulated normal physiological environment but also could obviously enhance the cellular uptake efficiency. PUC-PUN-1 micelles had low cytotoxicity against SGC-7901 and MGC-803 cells, whereas PUC-PUN-1/DOX micelles had higher cytotoxicity compared to pure DOX and PUN-1/DOX micelles. Moreover, the results of in vivo antitumor activity experiments showed that PUC-PUN-1/DOX micelles had better tumor inhibition ability and safety than pure DOX. In addition, the results of in vitro drug release experiments indicated that PUC-PUN-1/DOX micelles had almost no burst release or leakage of drugs in pH 7.4 environment. However, the drug release was accelerated in pH 5.0, which followed Fickian diffusion mechanism.
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Vieira IRS, Miranda GDS, Ricci-Júnior E, Delpech MC. Waterborne poly(urethane-urea)s films as a sustained release system for ketoconazole. E-POLYMERS 2019. [DOI: 10.1515/epoly-2019-0018] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AbstractKetoconazole (KTZ) was incorporated in waterborne poly(urethane-urea)s dispersions (WPUU), aiming at the production of films for drug sustained release. Dispersions based on poly(ethylene glycol-block-propylene glycol) (PEG-b-PPG) (four monomers with different contents of PEG hydrophilic segments), poly(propylene glycol), isophorone diisocyanate, dime-thylolpropionic acid and hydrazine were produced and characterized by apparent viscosity and average particle size (APS). Cast films-drug interaction was investigated by Fourier-Transform infrared spectrometry (FTIR). In vitro dissolution assays were performed in simulated gastrointestinal juices, followed by application of kinetic models. Stable pseudoplastic dispersions, with APS between 27 to 320 nm were obtained. FTIR from KTZ-loaded films indicated interactions between polymer and drug. In vitro release of KTZ was achieved above 80%, notably influenced by PEG-based segments content up to 2 h, followed by sustained release for 8 h. Higuchi’s and first-order equations described the drug kinetic profile, as diffusion of the drug and erosion of the swollen polymer, respectively.
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Affiliation(s)
- Italo Rennan Sousa Vieira
- Instituto de Química, Universidade do Estado do Rio de Janeiro (IQ/UERJ), Rua São Francisco Xavier, 524, Maracanã, 20550-900, Rio de Janeiro, RJ, Brazil
| | - Gisele dos Santos Miranda
- Colégio Universitário Geraldo Reis, Universidade Federal Fluminense (COLUNI/UFF), Rua Alexandre Moura, 8, São Domingos, 24210-200, Niterói, RJ, Brazil
| | - Eduardo Ricci-Júnior
- Associate Professor, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro (FF/UFRJ). Avenida Carlos Chagas Filho s/n CCS, Farmácia Universitária, Ilha do Fundão, Zip code: 21941-590, Rio de Janeiro, RJ, Brazil
| | - Marcia Cerqueira Delpech
- Departamento de Processos Químicos, Instituto de Química, Universidade do Estado do Rio de Janeiro (DPQ/IQ/UERJ), Rua São Francisco Xavier, 524, Maracanã, 20550-900, Rio de Janeiro, RJ, Brazil
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Huang D, Zhou Y, Xiang Y, Shu M, Chen H, Yang B, Liao X. Polyurethane/doxorubicin nanoparticles based on electrostatic interactions as pH-sensitive drug delivery carriers. POLYM INT 2018. [DOI: 10.1002/pi.5618] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Dengcheng Huang
- State Key Laboratory of Refractories and Metallurgy; Wuhan University of Science and Technology; Wuhan China
- Hubei Province Key Laboratory of Coal Conversion and New Carbon Material; Wuhan University of Science and Technology; Wuhan China
| | - Yu Zhou
- State Key Laboratory of Refractories and Metallurgy; Wuhan University of Science and Technology; Wuhan China
- Hubei Province Key Laboratory of Coal Conversion and New Carbon Material; Wuhan University of Science and Technology; Wuhan China
| | - Yuan Xiang
- Institute of Biology and Medicine; Wuhan University of Science and Technology; Wuhan China
| | - Meijie Shu
- Hubei Province Key Laboratory of Coal Conversion and New Carbon Material; Wuhan University of Science and Technology; Wuhan China
| | - Hongxiang Chen
- Hubei Province Key Laboratory of Coal Conversion and New Carbon Material; Wuhan University of Science and Technology; Wuhan China
| | - Bing Yang
- State Key Laboratory of Refractories and Metallurgy; Wuhan University of Science and Technology; Wuhan China
- Hubei Province Key Laboratory of Coal Conversion and New Carbon Material; Wuhan University of Science and Technology; Wuhan China
| | - Xinghua Liao
- Institute of Biology and Medicine; Wuhan University of Science and Technology; Wuhan China
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Schmidt M, Saavedra M, Alegría L, Alvarado N, Fuentes I, Menares P, Kortaberría G, Gargallo L, Saldías C, Leiva A, Radić D. Host-guest interactions of non-steroidal anti-inflammatory drugs on the functionalized dendronized polymeric nanocomposite, Poly(N-tris[((cyano-ethoxy)methyl] methylacrylamide). JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2018. [DOI: 10.1080/10601325.2018.1426389] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- M. Schmidt
- Laboratorio de Química Física de Macromoléculas, Depto Química Física, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 22, Chile
| | - M. Saavedra
- Laboratorio de Química Teórica, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Casilla 40, Correo 33, Santiago, Chile
| | - L. Alegría
- Centro de Docencia de Ciencias Básicas para Ingeniería, Facultad de Ciencias de la Ingeniería, Universidad Austral de Chile, Casilla 567, Valdivia, Chile
| | - N. Alvarado
- Laboratorio de Química Física de Macromoléculas, Depto Química Física, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 22, Chile
| | - I. Fuentes
- Centro de Materiales Poliméricos y Macromoléculas, Instituto de Ciencias Químicas Aplicadas, Facultad de Ingeniería. Centro de Investigación Multidisciplinario de La Araucanía (CIMA), Universidad Autónoma de Chile, Av. Alemania, Temuco, Chile
| | - P. Menares
- Laboratorio de Química Física de Macromoléculas, Depto Química Física, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 22, Chile
| | - G. Kortaberría
- Group “Material+Technologies”, Dept Ingeniería Química y M. Ambiente, Escuela Politécnica, Universidad País Vasco/Euskal Herriko Unibersitatea, Donostia, San Sebastián, España
| | - L. Gargallo
- Facultad de Ciencias, Departamento de Química Universidad de Tarapacá, General Velásquez, Arica, Chile
| | - C. Saldías
- Laboratorio de Química Física de Macromoléculas, Depto Química Física, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 22, Chile
| | - A. Leiva
- Laboratorio de Química Física de Macromoléculas, Depto Química Física, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 22, Chile
| | - D. Radić
- Laboratorio de Química Física de Macromoléculas, Depto Química Física, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 22, Chile
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