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Chen X, Cui H, Li H, Wang J, Fu P, Yin J, Tang S, Ke Y. Functionalization of graphene oxide with amphiphilic block copolymer to enhance antibacterial activity. Colloids Surf B Biointerfaces 2024; 234:113690. [PMID: 38086276 DOI: 10.1016/j.colsurfb.2023.113690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/20/2023] [Accepted: 12/01/2023] [Indexed: 02/09/2024]
Abstract
Functionalization of GO with an amphiphilic block copolymer is designed with an aim to enhance its biocompatibility, however, long copolymer chains can screen the blade effect of GO to sacrifice its antimicrobial activities. To solve this problem, low molecular weight of poly(ethylene glycol) (PEG), poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and their block copolymer were respectively introduced onto GO via an isophorone diisocyanate modified GO as a intermediate, followed by a solvent evaporation of an oil-in-water emulsion treatment (SE treatment) to induce block copolymer into polymer micelle via phase separation to refresh the sharp edges of GO. Block copolymer modified GO possessed similar dispersibility and stability to PEG modified GO, and even higher loading capacity of the hydrophobic drug than PHBV modified GO, illustrating its superior properties to homopolymer. PEG, PHBV and their block copolymer modified GO were nontoxic towards ATDC5 cells while cultured for 3 days and compatible with erythrocytes within 8 h. SE treatment enhanced greatly the loading capacity of the hydrophobic drug and the accumulative release reached 91.3% within 24 h. The inhibition zone of the block copolymer modified GO was 14.1 mm and 14.8 mm against E. coli and S. aureus, comparable to that of PEG modified GO. The bacterial reduction rate of the copolymer micelle modified GO was 87.1% and 82.7% towards E. coli and S. aureus, much greater than that of PEG, PHBV and their block copolymer modified GO at a concentration of 1 mg/mL. The antibiofilm capacity of the copolymer micelle modified GO were equal to that of PEG modified, demonstrating its great promise in tissue engineering application for repair of infected tissue defects.
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Affiliation(s)
- Xi Chen
- Department of Biomedical Engineering, Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Hao Cui
- Department of Biomedical Engineering, Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Hui Li
- Department of Biomedical Engineering, Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Jiayin Wang
- Department of Biomedical Engineering, Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Pengcheng Fu
- Department of Biomedical Engineering, Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Jun Yin
- Department of Biomedical Engineering, Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - ShunQing Tang
- Department of Biomedical Engineering, Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.
| | - Yu Ke
- Department of Biomedical Engineering, Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.
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Saraei M, Sarvari R, Fakhri E, Fariyan S. Antibacterial polymeric micelles based on kojic acid/acrylic acid/chitosan. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2131786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Mahnaz Saraei
- Department of Chemistry, Payame Noor University, Tehran, Iran
| | - Raana Sarvari
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Sarvaran Shimi Pishro(S.Sh.P) Co, Tabriz, Iran
| | - Elaheh Fakhri
- Dental and Periodontal Research Center, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shiva Fariyan
- Department of Chemistry, Payame Noor University, Tehran, Iran
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Falsafi M, Hassanzadeh Goji N, Sh Saljooghi A, Abnous K, Taghdisi SM, Nekooei S, Ramezani M, Alibolandi M. Synthesis of a targeted, dual pH and redox-responsive nanoscale coordination polymer theranostic against metastatic breast cancer in vitro and in vivo. Expert Opin Drug Deliv 2022; 19:743-754. [PMID: 35616345 DOI: 10.1080/17425247.2022.2083602] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Nanoscale coordination polymers (nCP) have exhibited a great potential in designing of the theranostic platforms in the latest years. However, they have low selectivity for cancerous tissues and require to be modified for becoming effective cancer therapeutics. In this study, a novel nanoscale pH and redox-responsive coordination polymer with high selectivity was synthesized. METHODS The nCP was synthesized by iron(III) chloride and dithiodiglycolic acid. After loading the prepared nCP with doxorubicin (DOX), nCP was coated with an amphiphilic copolymer composed of α-tocopheryl succinate-polyethylene glycol (VEP). Next, AS1411 aptamer was decorated on the VEP shell of the DOX-loaded nCP (Apt-VEP-nCP@DOX) to provide a guided drug delivery platform. RESULTS The prepared platform demonstrated high DOX loading capacity and pH and redox-responsive DOX release. Apt-VEP-nCP@DOX displayed greater DOX internalization and toxicity towards breast cancer cells of 4T1 and MCF7 compared with that of non-targeted VEP-nCP@DOX. Also, the intravenous injection of Apt-VEP-nCP@DOX (a single dose) considerably suppressed the 4T1 tumor growth in vivo. Moreover, Apt-VEP-nCP@DOX showed outstanding magnetic resonance (MR) imaging capability for 4T1 adenocarcinoma diagnosis in ectopic 4T1 tumor model in mice. CONCLUSIONS The developed innovative intelligent Apt-VEP-nCP@DOX could serve as a safe and biocompatible theranostic platform appropriate for further translational purposes against breast cancer.
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Affiliation(s)
- Monireh Falsafi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Amir Sh Saljooghi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sirous Nekooei
- Department of Radiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Ramezani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mona Alibolandi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Maulvi FA, Soni PD, Patel PJ, Desai AR, Desai DT, Shukla MR, Shah SA, Shah DO, Willcox MDP. Controlled bimatoprost release from graphene oxide laden contact lenses: In vitro and in vivo studies. Colloids Surf B Biointerfaces 2021; 208:112096. [PMID: 34530331 DOI: 10.1016/j.colsurfb.2021.112096] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 11/28/2022]
Abstract
Ocular drug delivery using contact lenses may be able to substitute for eye drop therapy. However, issues with hydrophobic drugs (like bimatoprost that is used to treat glaucoma) such as low drug uptake using a simple soaking method into preformed contact lenses and alteration in the swelling and transmittance of lenses restricts the application for drug delivery. This research uses graphene oxide (GO) to control the release of bimatoprost from contact lenses along with improvements in the drug uptake, and lens swelling and transmittance. GO was loaded into silicone hydrogel contact lenses by adding the GO at the same time as lenses were polymerized. These lenses were soaked in bimatoprost. Alternatively contact lenses, either with or without GO, were produced by adding bimatoprost during lens polymerization. GO improved contact lens swelling due to its water binding capacity and lens transmittance due to the molecular dispersion of bimatoprost on the surface of the GO which prevented the local precipitation of the drug. The bimatoprost uptake was not improved in the presence of GO. However, its in vitro release profile was improved. Adding bimatoprost and GO at the same time as lenses were polymerized (DL-GO-BMT) significantly decreased the loss of drug during extraction and sterilization in comparison to contact lenses (DL-BMT) without GO. As the amount of GO was increased, the DL-GO-BMT lenses showed a significant decrease in the burst and cumulative release of bimatoprost. Ocular irritation and histopathology reports demonstrated the safety of GO contact lens. The in vivo pharmacokinetic studies in the rabbit tear fluid showed significant improvement in mean residence time (MRT) and area under the curve (AUC) with DL-GO-0.2 μg-BMT-100 contact lens in comparison to eye drop solution. The study demonstrated that the addition of GO to contact lenses can control the release of bimatoprost as well as improved the lens swelling and transmittance. However, further optimization is needed to modulate the release of drug within the therapeutic level to manage glaucoma.
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Affiliation(s)
- Furqan A Maulvi
- Maliba Pharmacy College, Uka Tarsadia University, Surat, 394350, India.
| | - Parth D Soni
- Maliba Pharmacy College, Uka Tarsadia University, Surat, 394350, India
| | - Pooja J Patel
- Maliba Pharmacy College, Uka Tarsadia University, Surat, 394350, India
| | - Ankita R Desai
- Maliba Pharmacy College, Uka Tarsadia University, Surat, 394350, India
| | - Ditixa T Desai
- Maliba Pharmacy College, Uka Tarsadia University, Surat, 394350, India
| | - Manish R Shukla
- Centre for Ocular Research & Education (CORE), School of Optometry and Vision Science, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Shailesh A Shah
- Maliba Pharmacy College, Uka Tarsadia University, Surat, 394350, India
| | - Dinesh O Shah
- Department of Chemical Engineering and Department of Anesthesiology, University of Florida, Gainesville, FL, 32611, USA
| | - Mark D P Willcox
- School of Optometry and Vision, University of New South Wales, Sydney, New South Wales, 2052, Australia
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Astani S, Salehi R, Massoumi B, Massoudi A. Co-delivery of cisplatin and doxorubicin by carboxylic acid functionalized poly (hydroxyethyl methacrylate)/reduced graphene nanocomposite for combination chemotherapy of breast cancer cells. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 32:657-677. [PMID: 33347395 DOI: 10.1080/09205063.2020.1855393] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
In this study a novel pH-responsive magnetic nanocomposite based on reduced graphene oxide was developed for combination of doxorubicin (Dox)-cisplatin (Cis) delivery to destroy the MCF-7 cell line. For this purpose, polyhydroxyethyl methacrylate (PHEMA) was bonded to the reduced graphene oxide through ATRP polymerization using grafting from method. Then the PHEMA hydroxy groups were converted to succinyloxy groups by polyesterification with succinic anhydride. The physicochemical properties of the nanocomposite were investigated via FTIR, SEM, XRD, DLS and TGA analysis. Unique structure of nanocomposite led to simultaneous encapsulation of Dox (75%) and Cis (82%) through ionic interaction, π-π stacking and hydrogen bonding. The obtained nanocomposite was uptake by MCF-7 cells at early first hour because of nanocomposite small size (below 70 nm). Cell viability assay results revealed that the Dox&Cis-loaded nanocomposite showed the highest rate of MCF-7 cells at lowest concentration (IC50 = 0.798 µg/mL) compared to treatment groups received single drug-loaded nanocomposite and free drugs. Dox&Cis-loaded nanocomposite exhibited a synergistic influence with the combination index (CI) value <1. The cell cycle analysis results revealed that the highest amount of apoptosis (cells population in sub G1 was 75%) was observed in the Dox&Cis-loaded nanocomposite treatment group compared with the single drug-loaded nanocomposite and free drugs. Our findings confirmed that combinational therapy by Dox and Cis graphene oxide-based nanocomposite has increased the cytotoxicity in MCF-7 cells by stimulating the apoptotic response.
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Affiliation(s)
- Shahram Astani
- Department of Chemistry, Payame Noor University, Tehran, Iran
| | - Roya Salehi
- Drug Applied Research Centre and Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz, Iran
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