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López-Saucedo F, López-Barriguete JE, Flores-Rojas GG, Gómez-Dorantes S, Bucio E. Polypropylene Graft Poly(methyl methacrylate) Graft Poly( N-vinylimidazole) as a Smart Material for pH-Controlled Drug Delivery. Int J Mol Sci 2021; 23:ijms23010304. [PMID: 35008729 PMCID: PMC8745634 DOI: 10.3390/ijms23010304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/23/2021] [Accepted: 12/27/2021] [Indexed: 01/14/2023] Open
Abstract
Surface modification of polypropylene (PP) films was achieved using gamma-irradiation-induced grafting to provide an adequate surface capable of carrying glycopeptide antibiotics. The copolymer was obtained following a versatile two-step route; pristine PP was exposed to gamma rays and grafted with methyl methacrylate (MMA), and afterward, the film was grafted with N-vinylimidazole (NVI) by simultaneous irradiation. Characterization included Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), and physicochemical analysis of swelling and contact angle. The new material (PP-g-MMA)-g-NVI was loaded with vancomycin to quantify the release by UV-vis spectrophotometry at different pH. The surface of (PP-g-MMA)-g-NVI exhibited pH-responsiveness and moderate hydrophilicity, which are suitable properties for controlled drug release.
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Pautu V, Lepeltier E, Mellinger A, Riou J, Debuigne A, Jérôme C, Clere N, Passirani C. pH-Responsive Lipid Nanocapsules: A Promising Strategy for Improved Resistant Melanoma Cell Internalization. Cancers (Basel) 2021; 13:2028. [PMID: 33922267 PMCID: PMC8122844 DOI: 10.3390/cancers13092028] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/12/2021] [Accepted: 04/16/2021] [Indexed: 12/12/2022] Open
Abstract
Despite significant advances in melanoma therapy, low response rates and multidrug resistance (MDR) have been described, reducing the anticancer efficacy of the administered molecules. Among the causes to explain these resistances, the decreased intratumoral pH is known to potentiate MDR and to reduce the sensitivity to anticancer molecules. Nanomedicines have been widely exploited as the carriers of MDR reversing molecules. Lipid nanocapsules (LNC) are nanoparticles that have already demonstrated their ability to improve cancer treatment. Here, LNC were modified with novel copolymers that combine N-vinylpyrrolidone (NVP) to impart stealth properties and vinyl imidazole (Vim), providing pH-responsive ability to address classical chemoresistance by improving tumor cell entry. These copolymers could be post-inserted at the LNC surface, leading to the property of going from neutral charge under physiological pH to positive charge under acidic conditions. LNC modified with polymer P5 (C18H37-P(NVP21-co-Vim15)) showed in vitro pH-responsive properties characterized by an enhanced cellular uptake under acidic conditions. Moreover, P5 surface modification led to an increased biological effect by protecting the nanocarrier from opsonization by complement activation. These data suggest that pH-sensitive LNC responds to what is expected from a promising nanocarrier to target metastatic melanoma.
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Affiliation(s)
- Vincent Pautu
- Micro & Nanomedecines Translationnelles (MINT), University of Angers, Inserm, The National Center for Scientific Research (CNRS), SFR ICAT, F-49000 Angers, France; (V.P.); (E.L.); (A.M.); (J.R.); (N.C.)
- Center for Education and Research on Macromolecules (CERM), Complex and Entangled Systems from Atoms to Materials Research Unit (CESAM-RU), University of Liège, 4000 Liège, Belgium; (A.D.); (C.J.)
| | - Elise Lepeltier
- Micro & Nanomedecines Translationnelles (MINT), University of Angers, Inserm, The National Center for Scientific Research (CNRS), SFR ICAT, F-49000 Angers, France; (V.P.); (E.L.); (A.M.); (J.R.); (N.C.)
| | - Adélie Mellinger
- Micro & Nanomedecines Translationnelles (MINT), University of Angers, Inserm, The National Center for Scientific Research (CNRS), SFR ICAT, F-49000 Angers, France; (V.P.); (E.L.); (A.M.); (J.R.); (N.C.)
| | - Jérémie Riou
- Micro & Nanomedecines Translationnelles (MINT), University of Angers, Inserm, The National Center for Scientific Research (CNRS), SFR ICAT, F-49000 Angers, France; (V.P.); (E.L.); (A.M.); (J.R.); (N.C.)
| | - Antoine Debuigne
- Center for Education and Research on Macromolecules (CERM), Complex and Entangled Systems from Atoms to Materials Research Unit (CESAM-RU), University of Liège, 4000 Liège, Belgium; (A.D.); (C.J.)
| | - Christine Jérôme
- Center for Education and Research on Macromolecules (CERM), Complex and Entangled Systems from Atoms to Materials Research Unit (CESAM-RU), University of Liège, 4000 Liège, Belgium; (A.D.); (C.J.)
| | - Nicolas Clere
- Micro & Nanomedecines Translationnelles (MINT), University of Angers, Inserm, The National Center for Scientific Research (CNRS), SFR ICAT, F-49000 Angers, France; (V.P.); (E.L.); (A.M.); (J.R.); (N.C.)
| | - Catherine Passirani
- Micro & Nanomedecines Translationnelles (MINT), University of Angers, Inserm, The National Center for Scientific Research (CNRS), SFR ICAT, F-49000 Angers, France; (V.P.); (E.L.); (A.M.); (J.R.); (N.C.)
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Obtainment and Characterization of Hydrophilic Polysulfone Membranes by N-Vinylimidazole Grafting Induced by Gamma Irradiation. Polymers (Basel) 2020; 12:polym12061284. [PMID: 32512692 PMCID: PMC7362247 DOI: 10.3390/polym12061284] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/30/2020] [Accepted: 05/31/2020] [Indexed: 11/17/2022] Open
Abstract
Polysulfone (PSU) film and N-vinylimidazole (VIM) were used to obtain grafted membranes with high hydrophilic capacity. The grafting process was performed by gamma irradiation under two experiments: (1) different irradiation doses (100-400 kGy) and VIM 50% solution; (2) different concentration of grafted VIM (30-70%) and 300 kGy of irradiation dose. Characteristics of the grafted membranes were determined by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), contact angle, swelling degree, desalination test, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Both experiments indicated that the absorbed dose 300 kGy and the VIM concentration, at 50% v/v, were effective to obtain PSU grafted membranes with 14.3% of grafting yield. Nevertheless, experimental conditions, 400 kGy, VIM 50% and 300 kGy, VIM 60-70% promoted possible membrane degradation and VIM homopolymerization on the membrane surface, which was observed by SEM images; meanwhile, 100-200 kGy and VIM 30-50% produced minimal grafting (2 ± 0.5%). Hydrophilic surface of the grafted PSU membranes by 300 kGy and VIM 50% v/v were corroborated by the water contact angle, swelling degree and desalination test, showing a decrease from 90.7° ± 0.3 (PSU film) to 64.3° ± 0.5; an increment of swelling degree of 25 ± 1%, and a rejection-permeation capacity of 75 ± 2%. In addition, the thermal behavior of grafted PSU membranes registered an increment in the degradation of 20%, due to the presence of VIM. However, the normal temperature of the membrane operation did not affect this result; meanwhile, the glass transition temperature (Tg) of the grafted PSU membrane was found at 185.4 ± 0.5 °C, which indicated an increment of 15 ± 1%.
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Halligan S, Murray K, Hopkins M, Rogers I, Lyons J, Vrain O, Geever L. Enhancing and controlling the critical attributes of poly (
N
‐vinylcaprolactam) through electron beam irradiation for biomedical applications. J Appl Polym Sci 2020. [DOI: 10.1002/app.48639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shane Halligan
- Applied Polymer Technologies GatewayMaterials Research Institute, Athlone Institute of Technology Ireland
| | | | - Michael Hopkins
- Applied Polymer Technologies GatewayMaterials Research Institute, Athlone Institute of Technology Ireland
| | - Ian Rogers
- Applied Polymer Technologies GatewayMaterials Research Institute, Athlone Institute of Technology Ireland
| | - John Lyons
- Applied Polymer Technologies GatewayMaterials Research Institute, Athlone Institute of Technology Ireland
| | | | - Luke Geever
- Applied Polymer Technologies GatewayMaterials Research Institute, Athlone Institute of Technology Ireland
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Singh B, Singh B. Developing a drug delivery carrier from natural polysaccharide exudate gum by graft-copolymerization reaction using high energy radiations. Int J Biol Macromol 2019; 127:450-459. [DOI: 10.1016/j.ijbiomac.2019.01.075] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/03/2019] [Accepted: 01/16/2019] [Indexed: 11/17/2022]
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González-Hernández G, Pino-Ramos VH, Islas L, Alvarez-Lorenzo C, Concheiro A, Bucio E. Radiation-grafting of N-vinylcaprolactam and 2-hydroxyethyl methacrylate onto polypropylene films to obtain a thermo-responsive drug delivery system. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2018.12.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Singh B, Kumar A. Radiation-induced graft copolymerization of N‑vinyl imidazole onto moringa gum polysaccharide for making hydrogels for biomedical applications. Int J Biol Macromol 2018; 120:1369-1378. [DOI: 10.1016/j.ijbiomac.2018.09.148] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/24/2018] [Accepted: 09/23/2018] [Indexed: 11/16/2022]
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López-Saucedo F, Alvarez-Lorenzo C, Concheiro A, Bucio E. Radiation-grafting of vinyl monomers separately onto polypropylene monofilament sutures. Radiat Phys Chem Oxf Engl 1993 2017. [DOI: 10.1016/j.radphyschem.2016.11.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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