1
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Abbas A, Zhang C, Hussain S, Li Y, Gao R, Li J, Liu X, Zhang M, Xu S. A Robust Switchable Oil-In-Water Emulsion Stabilized by Electrostatic Repulsions between Surfactant and Similarly Charged Carbon Dots. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206621. [PMID: 36581561 DOI: 10.1002/smll.202206621] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/21/2022] [Indexed: 06/17/2023]
Abstract
How to control the stability of oil-in-water (O/W) emulsions is one of the main topics for scientists working in colloidal systems. Recently, carbon dots (CDs) have received great interest as smart materials because of their excellent physicochemical properties and versatile applications. Herein, for the first time, advanced and switchable O/W emulsions are presented that are stabilized by the synergistic effect of cationic surfactant cetyltrimethylammonium bromide CTAB (emulsifier) and similarly charged CDs (stabilizer). In the formulated emulsion, the cationic surfactant molecules are adsorbed at the oil and water interface to decrease the interfacial tension and enrich the drops with a positive charge to ensure intensive electrostatic repulsions among them. On the contrary, cationic CDs are distributed in the water phase among the droplets to reduce the water secretion and prevent flocculation and droplet coalescence. The stabilizing effect is found to be universal for emulsions of a range of oil phases. Furthermore, the formulated emulsion is found to be switchable between "stable" and "unstable" modes by adding an equivalent of anionic surfactant sodium dodecyl benzene sulphonate (SDBS). The stabilized and switchable O/W emulsions are believed to have wide practical applications in water purification, pharmaceuticals, protein recognition, as well as catalysis.
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Affiliation(s)
- Ansar Abbas
- Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Chen Zhang
- Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Sameer Hussain
- Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Yang Li
- Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Ruixia Gao
- Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Jing Li
- Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Xueyi Liu
- Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Minghui Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Silong Xu
- Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
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2
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Nanogels for the solubility enhancement of water-insoluble drugs. Nanomedicine (Lond) 2023. [DOI: 10.1016/b978-0-12-818627-5.00022-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023] Open
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3
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Ranote S, Musioł M, Kowalczuk M, Joshi V, Chauhan GS, Kumar R, Chauhan S, Kumar K. Functionalized Moringa oleifera Gum as pH-Responsive Nanogel for Doxorubicin Delivery: Synthesis, Kinetic Modelling and In Vitro Cytotoxicity Study. Polymers (Basel) 2022; 14:polym14214697. [PMID: 36365689 PMCID: PMC9658875 DOI: 10.3390/polym14214697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/30/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
Environment-responsive-cum-site-specific delivery of therapeutic drugs into tumor cells is a foremost challenge for chemotherapy. In the present work, Moringa oleifera gum-based pH-responsive nanogel (MOGN) was functionalized as a doxorubicin (DOX) carrier. It was synthesized via free radical polymerization through the γ-irradiation method using acrylamide and N,N'-MBA followed by hydrolysis, sonication, and ultracentrifugation. The swelling behavior of MOGN as a function of pH was assessed using a gravimetric method that revealed its superabsorbent nature (365.0 g/g). Furthermore, MOGN showed a very high loading efficiency (98.35 %L) of DOX by MOGN. In vitro release studies revealed that DOX release from DOX-loaded MOGN was 91.92% at pH 5.5 and 12.18% at 7.4 pH, thus favorable to the tumor environment. The drug release from nanogel followed Korsmeyer-Peppas model at pH 5.5 and 6.8 and the Higuchi model at pH 7.4. Later, the efficient DOX release at the tumor site was also investigated by cytotoxicity study using Rhabdomyosarcoma cells. Thus, the synthesized nanogel having high drug loading capacity and excellent pH-triggered disintegration and DOX release performance in a simulated tumor environment could be a promising candidate drug delivery system for the targeted and controlled release of anticancer drugs.
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Affiliation(s)
- Sunita Ranote
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34. M. Curie-Skłodowska St., 41-819 Zabrze, Poland
- Department of Chemistry, Hemvati Nandan Bahuguna Garhwal University, SRT Campus, Tehri Garhwal, Srinagar 249199, Uttarakhand, India
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla 171005, Himachal Pradesh, India
- Correspondence: (S.R.); (M.K.); Tel.: +48-734-801-150 (S.R.)
| | - Marta Musioł
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34. M. Curie-Skłodowska St., 41-819 Zabrze, Poland
| | - Marek Kowalczuk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34. M. Curie-Skłodowska St., 41-819 Zabrze, Poland
- Correspondence: (S.R.); (M.K.); Tel.: +48-734-801-150 (S.R.)
| | - Veena Joshi
- Department of Chemistry, Hemvati Nandan Bahuguna Garhwal University, SRT Campus, Tehri Garhwal, Srinagar 249199, Uttarakhand, India
| | - Ghanshyam S. Chauhan
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla 171005, Himachal Pradesh, India
| | - Rakesh Kumar
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla 171005, Himachal Pradesh, India
| | - Sandeep Chauhan
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla 171005, Himachal Pradesh, India
| | - Kiran Kumar
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla 171005, Himachal Pradesh, India
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4
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Sarolia J, Shukla R, Ray D, Aswal VK, Choudhury SD, Bahadur P, Tiwari S. Mobility of doxorubicin in TPGS micelles in response to sodium taurodeoxycholate incorporation: Analyses based on scattering and fluorescence studies. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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5
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Montagna V, Takahashi J, Tsai MY, Ota T, Zivic N, Kawaguchi S, Kato T, Tanaka M, Sardon H, Fukushima K. Methoxy-Functionalized Glycerol-Based Aliphatic Polycarbonate: Organocatalytic Synthesis, Blood Compatibility, and Hydrolytic Property. ACS Biomater Sci Eng 2021; 7:472-481. [DOI: 10.1021/acsbiomaterials.0c01460] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Valentina Montagna
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastian, Spain
- Department of Polymer Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Junko Takahashi
- Department of Polymer Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Meng-Yu Tsai
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Takayuki Ota
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Nicolas Zivic
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastian, Spain
| | - Seigou Kawaguchi
- Department of Polymer Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Takashi Kato
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Masaru Tanaka
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
| | - Haritz Sardon
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastian, Spain
| | - Kazuki Fukushima
- Department of Polymer Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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6
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Domiński A, Konieczny T, Duale K, Krawczyk M, Pastuch-Gawołek G, Kurcok P. Stimuli-Responsive Aliphatic Polycarbonate Nanocarriers for Tumor-Targeted Drug Delivery. Polymers (Basel) 2020; 12:E2890. [PMID: 33276597 PMCID: PMC7761607 DOI: 10.3390/polym12122890] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 11/28/2020] [Accepted: 11/29/2020] [Indexed: 12/14/2022] Open
Abstract
Nanoparticles based on amphiphilic copolymers with tunable physicochemical properties can be used to encapsulate delicate pharmaceutics while at the same time improving their solubility, stability, pharmacokinetic properties, reducing immune surveillance, or achieving tumor-targeting ability. Those nanocarriers based on biodegradable aliphatic polycarbonates are a particularly promising platform for drug delivery due to flexibility in the design and synthesis of appropriate monomers and copolymers. Current studies in this field focus on the design and the synthesis of new effective carriers of hydrophobic drugs and their release in a controlled manner by exogenous or endogenous factors in tumor-specific regions. Reactive groups present in aliphatic carbonate copolymers, undergo a reaction under the action of a stimulus: e.g., acidic hydrolysis, oxidation, reduction, etc. leading to changes in the morphology of nanoparticles. This allows the release of the drug in a highly controlled manner and induces a desired therapeutic outcome without damaging healthy tissues. The presented review summarizes the current advances in chemistry and methods for designing stimuli-responsive nanocarriers based on aliphatic polycarbonates for controlled drug delivery.
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Affiliation(s)
- Adrian Domiński
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Skłodowskiej St, 41-819 Zabrze, Poland; (A.D.); (T.K.); (K.D.)
| | - Tomasz Konieczny
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Skłodowskiej St, 41-819 Zabrze, Poland; (A.D.); (T.K.); (K.D.)
| | - Khadar Duale
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Skłodowskiej St, 41-819 Zabrze, Poland; (A.D.); (T.K.); (K.D.)
| | - Monika Krawczyk
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland; (M.K.); (G.P.-G.)
- Biotechnology Centre, Silesian University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland
| | - Gabriela Pastuch-Gawołek
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland; (M.K.); (G.P.-G.)
- Biotechnology Centre, Silesian University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland
| | - Piotr Kurcok
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Skłodowskiej St, 41-819 Zabrze, Poland; (A.D.); (T.K.); (K.D.)
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7
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Makhathini SS, Omolo CA, Gannimani R, Mocktar C, Govender T. pH-Responsive Micelles From an Oleic Acid Tail and Propionic Acid Heads Dendritic Amphiphile for the Delivery of Antibiotics. J Pharm Sci 2020; 109:2594-2606. [PMID: 32473209 DOI: 10.1016/j.xphs.2020.05.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/27/2020] [Accepted: 05/11/2020] [Indexed: 10/24/2022]
Abstract
The aim of this study was to synthesize a novel biocompatible pH-responsive oleic acid-based dendritic lipid amphiphile (OLA-SPDA) which self-assembled into stable micelles (OLA-SPDA -micelles) with a relatively low critical micelle concentration (CMC) of 5.6 × 10-6 M. The formulated micelles had particle size, polydispersity index (PDI) and zeta potential (ZP) of 84.16 ± 0.184 nm, 0.199 ± 0.011 and -42.6 ± 1.98 mV, respectively, at pH 7.4. The vancomycin (VCM) encapsulation efficiency was 78.80 ± 3.26%. The micelles demonstrated pH-responsiveness with an increase in particle size to 141.1 ± 0.0707 nm and a much faster release profile at pH 6.0, as compared to pH 7.4. The minimum inhibitory concentration (MIC) of VCM-OLA-SPDA-micelle against methicillin-resistant staphylococcus aureus (MRSA) was 8-fold lower compared to bare VCM, and the formulation had a 4-fold lower MIC at pH 6.0 when compared to the formulation's MIC at pH 7.4. MRSA viability assay showed the micelles had a percentage killing of 93.39% when compared bare-VCM (58.21%) at the same MIC (0.98 μg/mL). In vivo mice (BALB/c) skin infection models showed an 8-fold reduction in MRSA burden after treatment with VCM-OLA-SPDA-micelles when compared with bare VCM. The above results suggest that pH-responsive VCM-OLA-SPDA-micelles has the potential to be an effective carrier to enhance therapeutic outcomes against infections characterised by low pH.
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Affiliation(s)
- Sifiso S Makhathini
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Calvin A Omolo
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa; School of Pharmacy and Health Sciences, United States International University of Africa, Nairobi, Kenya.
| | - Ramesh Gannimani
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Chunderika Mocktar
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Thirumala Govender
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.
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8
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Gökçe Kocabay Ö, İsmail O. Preparation and optimization of biodegradable self-assembled PCL-PEG-PCL nano-sized micelles for drug delivery systems. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1713784] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Özlem Gökçe Kocabay
- Faculty of Chemical and Metallurgical Engineering, Department of Chemical Engineering, Yildiz Technical University, İstanbul, Turkey
- T.R. Ministry of Culture and Tourism, İstanbul, Turkey
| | - Osman İsmail
- Faculty of Chemical and Metallurgical Engineering, Department of Chemical Engineering, Yildiz Technical University, İstanbul, Turkey
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9
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Mu Y, Wu G, Su C, Dong Y, Zhang K, Li J, Sun X, Li Y, Chen X, Feng C. pH-sensitive amphiphilic chitosan-quercetin conjugate for intracellular delivery of doxorubicin enhancement. Carbohydr Polym 2019; 223:115072. [DOI: 10.1016/j.carbpol.2019.115072] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 07/02/2019] [Accepted: 07/07/2019] [Indexed: 10/26/2022]
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10
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Jannat NE, Alam MA, Rahman M, Rahman M, Hossain M, Hossain S, Minami H, Ahmad H. Carboxylic acid modified pH-responsive composite polymer particles. JOURNAL OF POLYMER ENGINEERING 2019. [DOI: 10.1515/polyeng-2019-0069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
pH-responsive polymers are attracting much interest from researchers because of their wide application potentials in areas like biosensor, bioseparator, bioreactor, biocatalysis, drug delivery, and water treatments. In this investigation a two-step process is evaluated to prepare carboxyl(–COOH) functional submicrometer-sized pH-responsive composite polymer particles. First, submicrometer-sized polystyrene (PS) particles are prepared by a modified conventional dispersion polymerization. In the second step, PS/poly(methacrylic acid-acrylamide-ethylene glycol dimethacrylate) [PS/P(MAA-AAm-EGDMA)] composite polymer particles are synthesized by seeded co-polymerization of methacrylic acid, acrylamide, and ethylene glycol dimethacrylate in the presence of PS seed particles. The size distributions and morphologies analyzed by electron micrographs suggested that seeded copolymerization smoothly occurred without formation of any secondary tiny copolymer particles. The surface composition and functionality are confirmed by Fourier transform infrared spectroscopy and proton nuclear magnetic resonance. The hydrodynamic diameter increased with the increase in pH values as part of the carboxyl groups are deprotonated, which favored the swelling of copolymer layer formed around the surface of PS particles. The adsorption of cationic and anionic surfactants at two different pH values showed that adsorption of cationic surfactant is favored at higher pH value whereas that of anionic surfactant is favored at lower pH value.
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Affiliation(s)
- Nur E. Jannat
- Department of Chemistry , Rajshahi University , Rajshahi 6205 , Bangladesh
| | - Md. Ashraful Alam
- Department of Chemistry , Rajshahi University , Rajshahi 6205 , Bangladesh
| | - M.A. Rahman
- Department of Chemistry , Rajshahi University , Rajshahi 6205 , Bangladesh
| | - M.M. Rahman
- Department of Chemistry , Rajshahi University , Rajshahi 6205 , Bangladesh
| | - M.K. Hossain
- Department of Chemistry , Rajshahi University , Rajshahi 6205 , Bangladesh
| | - S. Hossain
- Department of Chemistry , Rajshahi University , Rajshahi 6205 , Bangladesh
| | - H. Minami
- Graduate School of Engineering , Kobe University , Kobe 657-8501 , Japan
| | - Hasan Ahmad
- Department of Chemistry , Rajshahi University , Rajshahi 6205 , Bangladesh
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11
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Li Y, Chen S, Chang X, He F, Zhuo R. Efficient Co-delivery of Doxorubicin and Methotrexate by pH-Sensitive Dual-Functional Nanomicelles for Enhanced Synergistic Antitumor Efficacy. ACS APPLIED BIO MATERIALS 2019; 2:2271-2279. [DOI: 10.1021/acsabm.9b00230] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Youmei Li
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Shu Chen
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Xiupeng Chang
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Feng He
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Renxi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, China
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12
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Guo Z, Liu X, Chen Z, Hu J, Yang L. New liquid crystal polycarbonate micelles for intracellular delivery of anticancer drugs. Colloids Surf B Biointerfaces 2019; 178:395-403. [PMID: 30903978 DOI: 10.1016/j.colsurfb.2019.03.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 02/15/2019] [Accepted: 03/12/2019] [Indexed: 10/27/2022]
Abstract
To construct pH/temperature dual sensitive micelles as novel drug delivery carriers, the synthesis of two diblock copolymers mPEG113-PMCC9-(PMCC-DBO)27 and mPEG43-PMCC25-(PMCC-DHO)15 based on mPEG and polycarbonate modified by acid and liquid crystal groups is described. In aqueous solution, mPEG113-PMCC9-(PMCC-DBO)27 and mPEG43-PMCC25-(PMCC-DHO)15 could self-assemble to form nanospheres and vesicles at very low critical micelle concentration, respectively. Both nanospheres and vesicles were less than 100 nm in diameter and demonstrated high loading capacity of doxorubicin (DOX) through ionic interaction between the free carboxyl groups in PMCC segments and the amine groups in DOX. In vitro release studies indicated that the two copolymer micelles were capable of pH/temperature-triggered release of doxorubicin and without a significant initial burst release. Furthermore, MTT assays showed that the blank copolymer micelles were nontoxic, while the drug-loaded micelles exhibited potent cytotoxic activity towards HeLa cells. These pH/temperature responsive copolymer micelles provided a new strategy for constructing stimuli-responsive drug delivery carriers in chemotherapy.
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Affiliation(s)
- Zhihao Guo
- Center for Molecular Science and Engineering, College of Science, Northeastern University, Shenyang 110819, China
| | - Xiaofeng Liu
- Center for Molecular Science and Engineering, College of Science, Northeastern University, Shenyang 110819, China
| | - Zhangpei Chen
- Center for Molecular Science and Engineering, College of Science, Northeastern University, Shenyang 110819, China
| | - Jianshe Hu
- Center for Molecular Science and Engineering, College of Science, Northeastern University, Shenyang 110819, China.
| | - Liqun Yang
- Liaoning Research Institute of Family Planning, China Medical University, Shenyang 110031, China.
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13
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Schwarzenböck C, Nelson PJ, Huss R, Rieger B. Synthesis of next generation dual-responsive cross-linked nanoparticles and their application to anti-cancer drug delivery. NANOSCALE 2018; 10:16062-16068. [PMID: 30109346 DOI: 10.1039/c8nr04760j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Rare earth metal-mediated group transfer polymerisation enables the synthesis of previously inaccessible block copolymers of 2-vinylpyridine, diethyl vinylphosphonate and the new diallyl vinylphosphonate monomer. This precision polymerisation and the selective cross-linking of allyl side groups via thiol-ene click chemistry leads to the formation of well-defined dual-responsive nanoparticles. We demonstrate that these next generation nanocarriers are pH- and temperature-responsive and are capable of efficiently delivering doxorubicin into the nucleus of cancer cells. High anti-cancer activity could be demonstrated via cytotoxicity tests on breast cancer (MCF-7) and cervical cancer (HeLa) cells. These results validate this modular synthesis route as an ideal platform for the development of sophisticated nanocarriers for future drug delivery applications.
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Affiliation(s)
- Christina Schwarzenböck
- WACKER Lehrstuhl für Makromolekulare Chemie, Technische Universität München, Lichtenbergstraße 4, 85748 Garching bei München, Germany.
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14
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Hao W, Han J, Chu Y, Huang L, Zhuang Y, Sun J, Li X, Zhao Y, Chen Y, Dai J. Collagen/Heparin Bi‐Affinity Multilayer Modified Collagen Scaffolds for Controlled bFGF Release to Improve Angiogenesis In Vivo. Macromol Biosci 2018; 18:e1800086. [DOI: 10.1002/mabi.201800086] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 07/07/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Wangping Hao
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of Sciences Suzhou 215123 P.R. China
| | - Jie Han
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of Sciences Suzhou 215123 P.R. China
- Xi’an Jiaotong University Xi’an 710049 P.R. China
| | - Yun Chu
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of Sciences Suzhou 215123 P.R. China
| | - Lei Huang
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of Sciences Suzhou 215123 P.R. China
| | - Yan Zhuang
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of Sciences Suzhou 215123 P.R. China
| | - Jie Sun
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of Sciences Suzhou 215123 P.R. China
| | - Xiaoran Li
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of Sciences Suzhou 215123 P.R. China
| | - Yannan Zhao
- Xi’an Jiaotong University Xi’an 710049 P.R. China
- Center for Regenerative MedicineState Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental BiologyChinese Academy of Sciences Beijing 100101 P.R. China
| | - Yanyan Chen
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of Sciences Suzhou 215123 P.R. China
| | - Jianwu Dai
- Key Laboratory for Nano‐Bio Interface ResearchDivision of NanobiomedicineSuzhou Institute of Nano‐Tech and Nano‐BionicsChinese Academy of Sciences Suzhou 215123 P.R. China
- Xi’an Jiaotong University Xi’an 710049 P.R. China
- Center for Regenerative MedicineState Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental BiologyChinese Academy of Sciences Beijing 100101 P.R. China
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15
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Lu YJ, Lin PY, Huang PH, Kuo CY, Shalumon KT, Chen MY, Chen JP. Magnetic Graphene Oxide for Dual Targeted Delivery of Doxorubicin and Photothermal Therapy. NANOMATERIALS 2018; 8:nano8040193. [PMID: 29584656 PMCID: PMC5923523 DOI: 10.3390/nano8040193] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 03/23/2018] [Accepted: 03/23/2018] [Indexed: 12/12/2022]
Abstract
To develop a pH-sensitive dual targeting magnetic nanocarrier for chemo-phototherapy in cancer treatment, we prepared magnetic graphene oxide (MGO) by depositing Fe3O4 magnetic nanoparticles on graphene oxide (GO) through chemical co-precipitation. MGO was modified with polyethylene glycol (PEG) and cetuximab (CET, an epidermal growth factor receptor (EGFR) monoclonal antibody) to obtain MGO-PEG-CET. Since EGFR was highly expressed on the tumor cell surface, MGO-PEG-CET was used for dual targeted delivery an anticancer drug doxorubicin (DOX). The physico-chemical properties of MGO-PEG-CET were fully characterized by dynamic light scattering, transmission electron microscopy, X-ray diffraction, Fourier transform Infrared spectroscopy, thermogravimetric analysis, and superconducting quantum interference device. Drug loading experiments revealed that DOX adsorption followed the Langmuir isotherm with a maximal drug loading capacity of 6.35 mg/mg, while DOX release was pH-dependent with more DOX released at pH 5.5 than pH 7.4. Using quantum-dots labeled nanocarriers and confocal microscopy, intracellular uptakes of MGO-PEG-CET by high EGFR-expressing CT-26 murine colorectal cells was confirmed to be more efficient than MGO. This cellular uptake could be inhibited by pre-incubation with CET, which confirmed the receptor-mediated endocytosis of MGO-PEG-CET. Magnetic targeted killing of CT-26 was demonstrated in vitro through magnetic guidance of MGO-PEG-CET/DOX, while the photothermal effect could be confirmed in vivo and in vitro after exposure of MGO-PEG-CET to near-infrared (NIR) laser light. In addition, the biocompatibility tests indicated MGO-PEG-CET showed no cytotoxicity toward fibroblasts and elicited minimum hemolysis. In vitro cytotoxicity tests showed the half maximal inhibitory concentration (IC50) value of MGO-PEG-CET/DOX toward CT-26 cells was 1.48 µg/mL, which was lower than that of MGO-PEG/DOX (2.64 µg/mL). The IC50 value could be further reduced to 1.17 µg/mL after combining with photothermal therapy by NIR laser light exposure. Using subcutaneously implanted CT-26 cells in BALB/c mice, in vivo anti-tumor studies indicated the relative tumor volumes at day 14 were 12.1 for control (normal saline), 10.1 for DOX, 9.5 for MGO-PEG-CET/DOX, 5.8 for MGO-PEG-CET/DOX + magnet, and 0.42 for MGO-PEG-CET/DOX + magnet + laser. Therefore, the dual targeting MGO-PEG-CET/DOX could be suggested as an effective drug delivery system for anticancer therapy, which showed a 29-fold increase in therapeutic efficacy compared with control by combining chemotherapy with photothermal therapy.
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Affiliation(s)
- Yu-Jen Lu
- Department of Neurosurgery, Chang Gung Memorial Hospital Linkuo Medical Center and College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan.
| | - Pin-Yi Lin
- Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 33302, Taiwan.
| | - Pei-Han Huang
- Department of Neurosurgery, Chang Gung Memorial Hospital Linkuo Medical Center and College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan.
| | - Chang-Yi Kuo
- Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 33302, Taiwan.
| | - K T Shalumon
- Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 33302, Taiwan.
| | - Mao-Yu Chen
- Department of Neurosurgery, Chang Gung Memorial Hospital Linkuo Medical Center and College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan.
| | - Jyh-Ping Chen
- Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 33302, Taiwan.
- Department of Plastic and Reconstructive Surgery and Craniofacial Research Center, Chang Gung Memorial Hospital, Linkou, Kwei-San, Taoyuan 33305, Taiwan.
- Research Center for Food and Cosmetic Safety, Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Kwei-San, Taoyuan 33302, Taiwan.
- Department of Materials Engineering, Ming Chi University of Technology, Tai-Shan, New Taipei City 24301, Taiwan.
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16
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Dai Y, Zhang X, Xia F. Click Chemistry in Functional Aliphatic Polycarbonates. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201700357] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 07/01/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Yu Dai
- Faculty of Materials Science and ChemistryChina University of Geosciences Wuhan 430074 P. R. China
| | - Xiaojin Zhang
- Faculty of Materials Science and ChemistryChina University of Geosciences Wuhan 430074 P. R. China
| | - Fan Xia
- Faculty of Materials Science and ChemistryChina University of Geosciences Wuhan 430074 P. R. China
- School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 P. R. China
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17
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Mercaptan acids modified amphiphilic copolymers for efficient loading and release of doxorubicin. Colloids Surf B Biointerfaces 2017; 153:220-228. [PMID: 28258030 DOI: 10.1016/j.colsurfb.2017.02.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/16/2017] [Accepted: 02/16/2017] [Indexed: 11/22/2022]
Abstract
In this paper, four different kinds of mercaptan acids modified amphiphilic copolymers mPEG-b-PATMC-g-SRCOOH (R=CH2, CH2CH2, (CH2)10 and CH(COOH)CH2) were successfully synthesized by thiol-ene "click" reaction between pendent carbon-carbon double bonds of PEG-b-PATMC and thiol groups of thioglycolic acid, 3-mercaptopropionic acid, 11-mercaptoundecanoic acid or 2-mercaptosuccinic acid. DLS and TEM measurements showed that all the mPEG-b-PATMC-g-SRCOOH copolymers could self-assemble to form micelles which dispersed in spherical shape with nano-size before and after DOX loading. The positively-charged DOX could effectively load into copolymer micelles via synergistic hydrophobic and electrostatic interactions. All DOX-loaded mPEG-b-PATMC-g-SRCOOH micelles displayed sustained drug release behavior without an initial burst which could be further adjusted by the conditions of ionic strength and pH. Especially in the case of mPEG-b-PATMC-g-S(CH2)10COOH (P3) micelles, the suitable hydrophobility and charge density were not only beneficial to improve the DOX-loading efficiency, they were also good for obtaining smaller particle size, higher micelle stability and more timely drug delivery. Confocal laser scanning microscopy (CLSM) and MTT assays further demonstrated efficient cellular uptake of DOX delivered by mPEG-b-PATMC-g-SRCOOH micelles and potent cytotoxic activity against cancer cells.
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18
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Strategies for improving the payload of small molecular drugs in polymeric micelles. J Control Release 2017; 261:352-366. [PMID: 28163211 DOI: 10.1016/j.jconrel.2017.01.047] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 01/27/2017] [Accepted: 01/30/2017] [Indexed: 11/24/2022]
Abstract
In the past few years, substantial efforts have been made in the design and preparation of polymeric micelles as novel drug delivery vehicles. Typically, polymeric micelles possess a spherical core-shell structure, with a hydrophobic core and a hydrophilic shell. Consequently, poorly water-soluble drugs can be effectively solubilized within the hydrophobic core, which can significantly boost their drug loading in aqueous media. This leads to new opportunities for some bioactive compounds that have previously been abandoned due to their low aqueous solubility. Even so, the payload of small molecular drugs is still not often satisfactory due to low drug loading and premature release, which makes it difficult to meet the requirements of in vivo studies. This problem has been a major focus in recent years. Following an analysis of the published literature in this field, several strategies towards achieving polymeric micelles with high drug loading and stability are presented in this review, in order to ensure adequate drug levels reach target sites.
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19
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Dai Y, Zhang X. Recent development of functional aliphatic polycarbonates for the construction of amphiphilic polymers. Polym Chem 2017. [DOI: 10.1039/c7py01815k] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Functional aliphatic polycarbonates in the construction of amphiphilic polymers are summarized in seven categories (hydrophobic, hydrophilic, or/and functional unit).
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Affiliation(s)
- Yu Dai
- Faculty of Materials Science and Chemistry
- China University of Geosciences
- Wuhan 430074
- P. R. China
| | - Xiaojin Zhang
- Faculty of Materials Science and Chemistry
- China University of Geosciences
- Wuhan 430074
- P. R. China
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20
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Sucrose ester based cationic liposomes as effective non-viral gene vectors for gene delivery. Colloids Surf B Biointerfaces 2016; 145:454-461. [DOI: 10.1016/j.colsurfb.2016.05.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 04/16/2016] [Accepted: 05/11/2016] [Indexed: 01/01/2023]
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21
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Altenbuchner PT, Werz PDL, Schöppner P, Adams F, Kronast A, Schwarzenböck C, Pöthig A, Jandl C, Haslbeck M, Rieger B. Next Generation Multiresponsive Nanocarriers for Targeted Drug Delivery to Cancer Cells. Chemistry 2016; 22:14576-84. [DOI: 10.1002/chem.201601822] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Peter T. Altenbuchner
- WACKER-Lehrstuhl für Makromolekulare Chemie; Technische Universität München; Lichtenbergstraße 4 85748 Garching bei München Germany
| | - Patrick D. L. Werz
- WACKER-Lehrstuhl für Makromolekulare Chemie; Technische Universität München; Lichtenbergstraße 4 85748 Garching bei München Germany
| | - Patricia Schöppner
- Center for Integrated Protein Science Munich (CIPSM) and Lehrstuhl für Biotechnologie; Technische Universität München; Lichtenbergstraße 4 85748 Garching bei München Germany
| | - Friederike Adams
- WACKER-Lehrstuhl für Makromolekulare Chemie; Technische Universität München; Lichtenbergstraße 4 85748 Garching bei München Germany
| | - Alexander Kronast
- WACKER-Lehrstuhl für Makromolekulare Chemie; Technische Universität München; Lichtenbergstraße 4 85748 Garching bei München Germany
| | - Christina Schwarzenböck
- WACKER-Lehrstuhl für Makromolekulare Chemie; Technische Universität München; Lichtenbergstraße 4 85748 Garching bei München Germany
| | - Alexander Pöthig
- Department Chemie & Catalysis Research Center; Technische Universität München; Ernst-Otto-Fischer-Straße 1 85748 Garching bei München Germany
| | - Christian Jandl
- Department Chemie & Catalysis Research Center; Technische Universität München; Ernst-Otto-Fischer-Straße 1 85748 Garching bei München Germany
| | - Martin Haslbeck
- Center for Integrated Protein Science Munich (CIPSM) and Lehrstuhl für Biotechnologie; Technische Universität München; Lichtenbergstraße 4 85748 Garching bei München Germany
| | - Bernhard Rieger
- WACKER-Lehrstuhl für Makromolekulare Chemie; Technische Universität München; Lichtenbergstraße 4 85748 Garching bei München Germany
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22
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Yu L, Lin C, Zheng Z, Li Z, Wang X. Self-assembly of pH-responsive biodegradable mixed micelles based on anionic and cationic polycarbonates for doxorubicin delivery. Colloids Surf B Biointerfaces 2016; 145:392-400. [PMID: 27232302 DOI: 10.1016/j.colsurfb.2016.05.029] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 05/07/2016] [Accepted: 05/11/2016] [Indexed: 12/22/2022]
Abstract
Poly(5-propyl-1,3-dioxan-2-one)-b-dimethylamine modified polycarbonate (PC(MPpC-MMA)) and poly(ethylene glycol)-b-carboxylated polycarbonate (PEG-PCCOOH) diblock copolymers were prepared to construct a pH responsive, highly stable and biodegradable mixed micelle. The two copolymers self-assembled into the mixed micelle in pH 7.4 PBS driven by electrostatic and hydrophobic interactions. PC(MPpC-MMA) with hydrophobic inner core was used for carrying drug and the dimethylamine part was designed as a trigger to disassemble the mixed micelle. PEG-PCCOOH could shield the positive character of the micelle which might show disadvantage to normal tissue. In addition, the free carboxyl groups could further increase the loading efficiency of positive charged drugs. The size and zeta potential of the micelle gradually decreased with increasing the molar ratio of PEG-PCCOOH to PC(MPpC-MMA). These mixed micelles could withstand high ionic strength of plasma and were rather stable for long time storage. However, via decrease of pH value from 7.4 to 5.0, they could undergo dissociation into smaller nanoparticles which were in a diameter of 20nm and showed positive surface nature. In vitro drug delivery studies showed a faster release rate at pH 5.0 than that at pH 7.4. The MTT assays demonstrated potent cytotoxic activity against HepG2 cells. All these results indicate that the newly mixed polycarbonate micelle can show great potential in biomedical field.
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Affiliation(s)
- Lin Yu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Chengyu Lin
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Zhen Zheng
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Zhao Li
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Xinling Wang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
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23
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Kamalov MI, Lavrov IA, Yergeshov AA, Siraeva ZY, Baltin ME, Rizvanov AA, Kuznetcova SV, Petrova NV, Savina IN, Abdullin TI. Non-invasive topical drug delivery to spinal cord with carboxyl-modified trifunctional copolymer of ethylene oxide and propylene oxide. Colloids Surf B Biointerfaces 2016; 140:196-203. [PMID: 26764102 DOI: 10.1016/j.colsurfb.2015.12.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 11/20/2015] [Accepted: 12/18/2015] [Indexed: 01/14/2023]
Abstract
In this study the effect of oxidative modification on micellar and drug delivery properties of copolymers of ethylene oxide (EO) and propylene oxide (PO) was investigated. Carboxylated trifunctional copolymers were synthesized in the reaction with chromium(VI) oxide. We found that carboxylation significantly improved the uniformity and stability of polymeric micelles by inhibiting the microphase transition. The cytotoxicity of copolymers was studied in relation to their aggregative state on two cell types (cancer line vs. primary fibroblasts). The accumulation of rhodamine 123 in neuroblastoma SH-SY5Y cells was dramatically increased in the presence of the oxidized block copolymer with the number of PO and EO units of 83.5 and 24.2, respectively. The copolymer was also tested as an enhancer for topical drug delivery to the spinal cord when applied subdurally. The oxidized copolymer facilitated the penetration of rhodamine 123 across spinal cord tissues and increased its intraspinal accumulation. These results show the potential of using oxidized EO/PO based polymers for non-invasive delivery of protective drugs after spinal cord injury.
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Affiliation(s)
- Marat I Kamalov
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia
| | - Igor A Lavrov
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia.
| | - Abdulla A Yergeshov
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia
| | - Zulfira Y Siraeva
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia
| | - Maxim E Baltin
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia
| | - Albert A Rizvanov
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia
| | | | - Natalia V Petrova
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia
| | - Irina N Savina
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Huxley Building, Lewes Road, Brighton BN2 4GJ, UK
| | - Timur I Abdullin
- Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia.
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24
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Cheng DB, Li YM, Cheng YJ, Wu Y, Chang XP, He F, Zhuo RX. Thymine-functionalized amphiphilic biodegradable copolymers for high-efficiency loading and controlled release of methotrexate. Colloids Surf B Biointerfaces 2015; 136:618-24. [DOI: 10.1016/j.colsurfb.2015.10.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 09/29/2015] [Accepted: 10/02/2015] [Indexed: 12/24/2022]
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25
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Ma Y, Zhang G, Li L, Yu H, Liu J, Wang C, Chu Y, Zhuo R, Jiang X. Temperature and pH dual-sensitive polyaspartamide derivatives for antitumor drug delivery. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27930] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yingying Ma
- Department of Chemistry, Key Laboratory of Biomedical Polymers of Ministry of Education; Wuhan University; Wuhan 430072 People's Republic of China
| | - Guangyan Zhang
- Department of Chemistry, Key Laboratory of Biomedical Polymers of Ministry of Education; Wuhan University; Wuhan 430072 People's Republic of China
- Hubei Provincial Key Laboratory of Green Materials for Light Industry & Department of Light Industry; Hubei University of Technology; Wuhan 430068 People's Republic of China
| | - Lingjuan Li
- Department of Chemistry, Key Laboratory of Biomedical Polymers of Ministry of Education; Wuhan University; Wuhan 430072 People's Republic of China
| | - Huan Yu
- Department of Chemistry, Key Laboratory of Biomedical Polymers of Ministry of Education; Wuhan University; Wuhan 430072 People's Republic of China
| | - Jia Liu
- Department of Chemistry, Key Laboratory of Biomedical Polymers of Ministry of Education; Wuhan University; Wuhan 430072 People's Republic of China
| | - Chaoqun Wang
- Department of Chemistry, Key Laboratory of Biomedical Polymers of Ministry of Education; Wuhan University; Wuhan 430072 People's Republic of China
| | - Yanfeng Chu
- Department of Chemistry, Key Laboratory of Biomedical Polymers of Ministry of Education; Wuhan University; Wuhan 430072 People's Republic of China
| | - Renxi Zhuo
- Department of Chemistry, Key Laboratory of Biomedical Polymers of Ministry of Education; Wuhan University; Wuhan 430072 People's Republic of China
| | - Xulin Jiang
- Department of Chemistry, Key Laboratory of Biomedical Polymers of Ministry of Education; Wuhan University; Wuhan 430072 People's Republic of China
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