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Han M, Zhou ZH, Luo YL, Xu F, Chen YS. pH-sensitive carbon nanotubes graft polymethylacrylic acid self-assembly nanoplatforms for cellular drug release. J Biomater Appl 2022; 37:737-750. [PMID: 35670334 DOI: 10.1177/08853282221107156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
pH-Sensitive carbon nanotubes graft polymethylacrylic acid hybrids (CNTs-g-PMAA) were prepared through a three-step process, and self-assembled into core-shell micelle nanoparticles. The chemical structure of the hybrids were characterized by FTIR, 1H NMR and TGA. The critical micelle concentration (CMC) was measured by surface tension, and the value hinged on the Mn values or chain lengths of PMAA segments. The UV-vis transmittance, dynamical light scattering (DLS), and zeta potential measurements indicated that the hybrid self-assembly exhibited pH-sensentive responsiveness. The self-assembly was used to load an anticancer drug, paclitaxel (PTX), with an encapsulation efficiency of 77%. The PTX-loaded hybrid drug preparations were applied for cancer-cellular drug release, finding that the release rate was dependent on pH environments, and faster in acidic media of pH < 6.8 than in pH 7.4. MTT and hemolysis assays manifested that the blank hybrid drug carriers were nontoxic and safe, whereas the PTX-loaded drug preparations possessed comparable and even higher anticancer activity in comparison with free PTX. Consequently, the developed hybrid drug nanocarriers can be used for cancer therapy as a promising candidate.
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Affiliation(s)
- Mei Han
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of chemistry and chemical engineering, 12401Shaanxi Normal University, Xi'an, China
| | - Zi-Hao Zhou
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of chemistry and chemical engineering, 12401Shaanxi Normal University, Xi'an, China
| | - Yan-Ling Luo
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of chemistry and chemical engineering, 12401Shaanxi Normal University, Xi'an, China
| | | | - Ya-Shao Chen
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of chemistry and chemical engineering, 12401Shaanxi Normal University, Xi'an, China
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Falcão CMC, Andrade A, Holanda VN, de Figueiredo RCBQ, Ximenes EA, Gomes ASL. Activity of poly(methacrylic acid)-silver nanoparticles (PMAA-AgNPs) on fluconazole resistant Candida albicans strains: synergistic and cytotoxic effects. J Appl Microbiol 2022; 132:4300-4309. [PMID: 35338561 DOI: 10.1111/jam.15542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/11/2022] [Accepted: 03/21/2022] [Indexed: 11/27/2022]
Abstract
AIMS To synthesize and evaluate the antifungal activity of poly(methacrylic acid)-silver nanoparticles (PMAA-AgNPs) against nine Candida albicans isolated from clinical specimens. METHODS AND RESULTS The effects of PMAA-AgNPs-fluconazole combination was analyzed by checkerboard methodology. The synergistic potential of PMAA-AgNPs-fluconazole was determined by the fractional inhibitory concentration index (FICI). The inhibition of germ tube formation and the determination of PMAA-AgNPs cytotoxicity were also performed. All C. albicans strains were susceptible to PMAA-AgNPs and resistant to fluconazole. PMAA-AgNPs at sub-inhibitory concentrations restored the susceptibility of resistant C. albicans to fluconazole, whose FICI ranged from 0.3 to 0.5. The synergistic interaction of the combination was observed in eight of nine strains. The PMAA-AgNPs-fluconazole combination was also able to inhibit the germ tube formation. PMAA-AgNPs showed a dose-dependent decrease on viability for cells tested, with 50% cytotoxic concentration (CC50 ) values of 6.5, 4.9 and 6.8 μg ml-1 for macrophages, fibroblasts and Vero cells, respectively. CONCLUSIONS This study demonstrated that in general, PMAA-AgNPs acts synergistically in combination with fluconazole, inhibiting fluconazole-resistant C. albicans strains. PMAA-AgNPs-fluconazole combination was also able to inhibit germ tube formation, an important virulence factor. Inhibitory effect of PMAA-AgNPs alone or in combination was higher in C. albicans than in mammalian cells. SIGNIFICANCE AND IMPACT OF STUDY This study shows the potential of poly(methacrylic acid)-silver nanoparticles combined with fluconazole to inhibit fluconazole-resistant Candida albicans strains.
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Affiliation(s)
| | - Audrey Andrade
- Department of Physics, Federal University of Pernambuco, Recife, PE, Brazil.,Laboratory of Microscope and Microanalysis, Strategic Technologies Center of Northeast, 50740-540, Recife, PE, Brazil
| | | | | | | | - Anderson Stevens Leonidas Gomes
- Postgraduate Program in Dentistry, Federal University of Pernambuco, Recife, PE, Brazil.,Department of Physics, Federal University of Pernambuco, Recife, PE, Brazil
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Zhang RQ, Liu ZQ, Luo YL, Xu F, Chen YS. Tri-stimuli responsive carbon nanotubes covered by mesoporous silica graft copolymer multifunctional materials for intracellular drug delivery. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.08.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Wu Z, Duan M, Xiong D, Zhang CY. Mesoscale Simulations of pH-Responsive Amphiphilic Polymeric Micelles for Oral Drug Delivery. Pharmaceutics 2019; 11:pharmaceutics11120620. [PMID: 31757065 PMCID: PMC6956019 DOI: 10.3390/pharmaceutics11120620] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 11/17/2019] [Indexed: 11/16/2022] Open
Abstract
It is of great significance to study the structure property and self-assembly of amphiphilic block copolymer in order to effectively and efficiently design and prepare drug delivery systems. In this work, dissipative particle dynamics (DPD) simulation method was used to investigate the structure property and self-assembly ability of pH-responsive amphiphilic block copolymer poly(methyl methacrylate-co-methacrylic acid)-b-poly(aminoethyl methacrylate) (poly(MMA-co-MAA)-b-PAEMA). The effects of different block ratios (hydrophilic PAEMA segment and pH-sensitive PMAA segment) in copolymer on self-assembly and drug loading capacity including drug distribution were extensively investigated. The increase of hydrophilic PAEMA facilitated the formation of a typical core-shell structure as well as a hydrophobic PMAA segment. Furthermore, the optimal drug-carrier ratio was confirmed by an analysis of the drug distribution during the self-assembly process of block copolymer and model drug Ibuprofen (IBU). In addition, the drug distribution and nanostructure of IBU-loaded polymeric micelles (PMs) self-assembled from precise block copolymer (PMMA-b-PMAA-b-PAEMA) and block copolymer (poly(MMA-co-MAA)-b-PAEMA) with random pH-responsive/hydrophobic structure were evaluated, showing that almost all drug molecules were encapsulated into a core for a random copolymer compared to the analogue. The nanostructures of IBU-loaded PMs at different pH values were evaluated. The results displayed that the nanostructure was stable at pH < pKa and anomalous at pH > pKa which indicated drug release, suggesting that the PMs could be used in oral drug delivery. These findings proved that the amphiphilic block copolymer P(MMA30-co-MAA33)-b-PAEMA38 with random structure and pH-sensitivity might be a potential drug carrier. Moreover, DPD simulation shows potential to study the structure property of PMs self-assembled from amphiphilic block copolymer.
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Affiliation(s)
- Zhimin Wu
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, China; (M.D.); (D.X.)
- Correspondence: (Z.W.); (C.Y.Z.); Tel.: +86-0731-58293549 (Z.W.); +1-509218-0453 (C.Y.Z.)
| | - Manzhen Duan
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, China; (M.D.); (D.X.)
| | - Di Xiong
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, China; (M.D.); (D.X.)
| | - Can Yang Zhang
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA 99210, USA
- Correspondence: (Z.W.); (C.Y.Z.); Tel.: +86-0731-58293549 (Z.W.); +1-509218-0453 (C.Y.Z.)
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Poly(methacrylic acid)-modified medical cotton gauzes with antimicrobial and drug delivery properties for their use as wound dressings. Carbohydr Polym 2019; 205:203-210. [DOI: 10.1016/j.carbpol.2018.10.015] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 10/03/2018] [Accepted: 10/05/2018] [Indexed: 12/21/2022]
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Luo YL, Zhang XY, Fu JY, Xu F, Chen YS. Novel temperature and pH dual-sensitive PNIPAM/CMCS/MWCNT semi-IPN nanohybrid hydrogels: Synthesis, characterization, and DOX drug release. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2016.1233418] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Yan-Ling Luo
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, P. R. China
| | - Xue-Yin Zhang
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, P. R. China
| | - Jing-Yu Fu
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, P. R. China
| | - Feng Xu
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, P. R. China
| | - Ya-Shao Chen
- Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, P. R. China
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Adewunmi AA, Ismail S, Sultan AS. Carbon Nanotubes (CNTs) Nanocomposite Hydrogels Developed for Various Applications: A Critical Review. J Inorg Organomet Polym Mater 2016. [DOI: 10.1007/s10904-016-0379-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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8
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Wei QB, Fu F, Zhang YQ, Tang L. Synthesis and characterization of pH-responsive carboxymethyl chitosan-g-polyacrylic acid hydrogels. JOURNAL OF POLYMER RESEARCH 2015. [DOI: 10.1007/s10965-015-0662-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Meng X, Liu Y, Meng M, Gu Z, Ni L, Zhong G, Liu F, Hu Z, Chen R, Yan Y. Synthesis of novel ion-imprinted polymers by two different RAFT polymerization strategies for the removal of Cs(i) from aqueous solutions. RSC Adv 2015. [DOI: 10.1039/c4ra11459k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work, two novel Cs(i) ion-imprinted polymers (Cs(i)-IIP1 and Cs(i)-IIP2) have been prepared by surface imprinting technique with different RAFT polymerization strategies based on support matrix of SBA-15.
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Affiliation(s)
- Xiangguo Meng
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
- School of Environmental and Chemical Engineering
| | - Yan Liu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Minjia Meng
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Zheyu Gu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Liang Ni
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Guoxing Zhong
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang 212013
- China
| | - Fangfang Liu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - Zhaoyong Hu
- School of Materials Science and Engineering
- Jiangsu University of Science and Technology
- Zhenjiang 212013
- China
| | - Rui Chen
- School of Environmental and Chemical Engineering
- Jiangsu University of Science and Technology
- Zhenjiang 212013
- China
| | - Yongsheng Yan
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- China
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Zhu L, Liu P, Wang A. High Clay-Content Attapulgite/Poly(acrylic acid) Nanocomposite Hydrogel via Surface-Initiated Redox Radical Polymerization with Modified Attapulgite Nanorods as Initiator and Cross-Linker. Ind Eng Chem Res 2014. [DOI: 10.1021/ie402878w] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Longxiang Zhu
- State
Key Laboratory of Applied Organic Chemistry and Institute of Polymer
Science and Engineering, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Peng Liu
- State
Key Laboratory of Applied Organic Chemistry and Institute of Polymer
Science and Engineering, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Aiqin Wang
- Center
of Xuyi Attapulgite Applied Technology, Lanzhou Institute of Chemical
Physics, Chinese Academy of Science, Lanzhou, 730000, China
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Servant A, Methven L, Williams RP, Kostarelos K. Electroresponsive polymer-carbon nanotube hydrogel hybrids for pulsatile drug delivery in vivo. Adv Healthc Mater 2013. [PMID: 23184678 DOI: 10.1002/adhm.201200193] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Drug release triggered by an external non-invasive stimulus is of great interest for the development of new drug delivery systems. The preparation of an electroresponsive multiwalled carbon nanotube/poly(methylacrylic acid) (MWNT/PMAA)-based hybrid material is reported. The hydrogel hybrids achieve a controlled drug release upon the ON/OFF application of an electric field, giving rise to in vitro and in vivo pulsatile release profiles.
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Affiliation(s)
- Ania Servant
- Nanomedicine Lab, UCL School of Pharmacy, University College London, 29–39 Brunswick Square, London WC1N 1AX, UK
| | - Laura Methven
- Nanomedicine Lab, UCL School of Pharmacy, University College London, 29–39 Brunswick Square, London WC1N 1AX, UK
| | - Rhodri P. Williams
- Centre for NanoHealth, School of Engineering, Swansea University, Swansea SA2 8PP, Wales, UK
| | - Kostas Kostarelos
- Nanomedicine Lab, UCL School of Pharmacy, University College London, 29–39 Brunswick Square, London WC1N 1AX, UK
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Luo YL, Zhang LL, Xu F, Ruan TY. Synthesis and characterization of novel PEG-tethered PMAA hydrogels based on a PEG macromolecular azo initiator. POLYMER SCIENCE SERIES A 2011. [DOI: 10.1134/s0965545x11010111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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