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Mohammed MS, Kovalev IS, Slovesnova NV, Sadieva LK, Platonov VA, Kim GA, Aluru R, Novikov AS, Taniya OS, Charushin VN. (1-(4-(5-Phenyl-1,3,4-oxadiazol-2-yl)phenyl)-1 H-1,2,3-triazol-4-yl)-methylenyls α,ω-Bisfunctionalized 3- and 4-PEG: Synthesis and Photophysical Studies. Molecules 2023; 28:5256. [PMID: 37446917 DOI: 10.3390/molecules28135256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/03/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
Two new azaheterocycle-based bolas, such as (1-(4-(5-phenyl-1,3,4-oxadiazol-2-yl)phenyl)-1H-1,2,3-triazol-4-yl)-methylenyls α,ω-bisfunctionalized PEGs, were prepared via Cu-catalyzed click reaction between 2-(4-azidophenyl)-5-(aryl)-oxadiazole-1,3,4 and terminal ethynyls derived from PEG-3 and PEG-4. Due to the presence of two heteroaromatic cores and a PEG linker, these bola molecules are considered as promising fluorescent chemosensors for electron-deficient species. As a result of a well-pronounced "turn-off" fluorescence response towards common nitro-explosive components, such as 2,4-dinitrotoluene (DNT) and 2,4,6-trinitrotoluene (TNT), hard-to-detect pentaerythritol tetranitrate (PETN), as well as Hg2+ cation was observed.
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Affiliation(s)
- Mohammed S Mohammed
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Igor S Kovalev
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Natalya V Slovesnova
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
- Department of Pharmacy and Chemistry, Ural Medical University, 3 Repina St., 620028 Yekaterinburg, Russia
| | - Leila K Sadieva
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Vadim A Platonov
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Grigory A Kim
- I. Ya. Postovsky Institute of Organic Synthesis of RAS (Ural Division), 22/20 S. Kovalevskoy/Akademicheskaya St., 620137 Yekaterinburg, Russia
- Institute of Natural Sciences and Mathematics, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Rammohan Aluru
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Alexander S Novikov
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab., 199034 Saint Petersburg, Russia
- Research Institute of Chemistry, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia
| | - Olga S Taniya
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Valery N Charushin
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
- I. Ya. Postovsky Institute of Organic Synthesis of RAS (Ural Division), 22/20 S. Kovalevskoy/Akademicheskaya St., 620137 Yekaterinburg, Russia
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Kumar P, Kim SH, Yadav S, Jo SH, Yoo S, Park SH, Lim KT. Redox-Responsive Core-Cross-Linked Micelles of Miktoarm Poly(ethylene oxide)- b-poly(furfuryl methacrylate) for Anticancer Drug Delivery. ACS APPLIED MATERIALS & INTERFACES 2023; 15:12719-12734. [PMID: 36848457 DOI: 10.1021/acsami.2c21152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The physiological instability of nanocarriers, premature drug leakage during blood circulation, and associated severe side effects cause compromised therapeutic efficacy, which have significantly hampered the progress of nanomedicines. The cross-linking of nanocarriers while keeping the effectiveness of their degradation at the targeted site to release the drug has emerged as a potent strategy to overcome these flaws. Herein, we have designed novel (poly(ethylene oxide))2-b-poly(furfuryl methacrylate) ((PEO2K)2-b-PFMAnk) miktoarm amphiphilic block copolymers by coupling alkyne-functionalized PEO (PEO2K-C≡H) and diazide-functionalized poly(furfuryl methacrylate) ((N3)2-PFMAnk) via click chemistry. (PEO2K)2-b-PFMAnk self-assembled to form nanosized micelles (mikUCL) with hydrodynamic radii in the range of 25∼33 nm. The hydrophobic core of mikUCL was cross-linked by a disulfide-containing cross-linker using the Diels-Alder reaction to avoid unwanted leakage and burst release of a payload. As expected, the resulting core-cross-linked (PEO2K)2-b-PFMAnk micelles (mikCCL) exhibited superior stability under a normal physiological environment and were de-cross-linked to rapidly release doxorubicin (DOX) upon exposure to a reduction environment. The micelles were compatible with HEK-293 normal cells, while DOX-loaded micelles (mikUCL/DOX and mikCCL/DOX) induced high antitumor activity in HeLa and HT-29 cells. mikCCL/DOX preferentially accumulated at the tumor site and was more efficacious than free DOX and mikUCL/DOX for tumor inhibition in HT-29 tumor-bearing nude mice.
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Affiliation(s)
- Parveen Kumar
- Department of Display Engineering, Pukyong National University, Busan 48513, South Korea
| | - Seon-Hwa Kim
- Department of Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan 48513, South Korea
| | - Sonyabapu Yadav
- Department of Smart Green Technology Engineering, Pukyong National University, Busan 48513, South Korea
| | - Sung-Han Jo
- Department of Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan 48513, South Korea
| | - Seong Yoo
- Department of Polymer Engineering, Pukyong National University, Busan 48513, South Korea
| | - Sang-Hyug Park
- Department of Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan 48513, South Korea
| | - Kwon Taek Lim
- Department of Display Engineering, Pukyong National University, Busan 48513, South Korea
- Department of Smart Green Technology Engineering, Pukyong National University, Busan 48513, South Korea
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López S, Rodríguez-López J, García MT, Rodríguez JF, Pérez-Ortiz JM, Ramos MJ, Gracia I. Self-assembled coumarin- and 5-fluorouracil-PEG micelles as multifunctional drug delivery systems. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103582] [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]
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Abstract
Background: Chemical industry has increased the investment into and innovation capacity to supply chemicals from safe and sustainable sources, which will be essential to offering new solutions and supporting the green transition of the global economy and society. In this sense, the use of green solvents and reusable heterogeneous catalysts has emerged as a promising sustainable process strategy for engineering, chemistry and the environment. In this work, different homogeneous (copper bromide, CuBr and copper(II) acetate, Cu (CH3COO)2·H2O) and heterogeneous (Cu Wire, Cu Plate, Cu/β-SiC, pre-treated Cu Wire and pre-treated Cu Plate) copper catalysts were tested for the copper(I)-catalyzed alkyne–azide cycloaddition (CuAAC) reaction. In addition, the influence of different reaction media was analyzed, comparing the use of an organic solvent such as toluene and a green solvent such as supercritical CO2 (scCO2). Methods: Characterization of the catalysts includes by X-ray diffraction (XRD), Scan Electron Microscopy (SEM), Atomic absorption spectrophotometry (AA) and Temperature Programmed Reduction (TPR). Parameters such as catalyst loading, reaction time, reusability and leaching of the catalysts were studied to obtain more information on the CuAAC reaction in scCO2. Results: The pre-treated copper plate achieved a 57% increase in reaction yield compared to the non pre-treated copper plate. However, the recovery and reuse of the pre-treated copper plate showed a severe deterioration and a considerable change in its surface. Cu Wire (without pre-treatment) achieved yields of up to 94.2% after reusing it for five cycles. Conclusions: These results suggest the possibility to exploit the combination of heterogeneous catalysts and scCO2 and justify further research to highlight green solvents and simultaneously address the challenges of reaction, purification and recycling.
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Gupta S, Tejavath KK. Nano Phytoceuticals: A Step Forward in Tracking Down Paths for Therapy Against Pancreatic Ductal Adenocarcinoma. J CLUST SCI 2022. [DOI: 10.1007/s10876-021-02213-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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6
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Li Y, Gao J, Wang S, Du M, Hou X, Tian T, Qiao X, Tian Z, Stang PJ, Li S, Hong X, Xiao Y. Self-assembled NIR-II Fluorophores with Ultralong Blood Circulation for Cancer Imaging and Image-guided Surgery. J Med Chem 2021; 65:2078-2090. [PMID: 34949094 DOI: 10.1021/acs.jmedchem.1c01615] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Complete excision of the last remaining 1-2% of tumor tissue without collateral damage remains particularly challenging. Herein, we report thiophenthiadiazole (TTD)-derived fluorophores L6-PEGnk (n = 1, 2, 5) as new-generation NIR-II (1000-1700 nm) probes with exceptional nonfouling performance and significantly high fluorescence quantum yields in water. L6-PEG2k can self-assemble into vesicular micelles and exhibited minimal immunogenicity, low binding affinities, ultralong blood circulation (t1/2 = 59.5 h), and a supercontrast ratio in vivo. Most importantly, L6-PEG2k achieved excellent in vivo CT-26 and U87MG tumor targeting and accumulation (>20 d) through intraperitoneal or intravenous injection. A subcutaneous U87MG tumor and orthotopic brain glioma were successfully resected under NIR-II FIGS in our animal model via intraperitoneal injection in an extended time window (48-144 h). This study highlights the potential of using L6-PEG2K as self-assembling molecular probes with long-circulation persistence for routine preoperative tumor assessment and precise intraoperative image-guided resection.
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Affiliation(s)
- Yang Li
- State Key Laboratory of Virology, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE) and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China.,College of Science, Research Center for Ecology, Laboratory of Extreme Environmental Biological Resources and Adaptive Evolution, Tibet University, Lhasa 850000, China.,Shenzhen Institute of Wuhan University, Shenzhen 518057, China
| | - Jianfeng Gao
- State Key Laboratory of Virology, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE) and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China.,ABSL-III Laboratory at the Center for Animal Experiment, State Key Laboratory of Virology, Wuhan University, Wuhan 430071, China
| | - Shuping Wang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Mingxia Du
- State Key Laboratory of Virology, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE) and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China
| | - Xiaowen Hou
- State Key Laboratory of Virology, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE) and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China
| | - Tian Tian
- College of Science, Research Center for Ecology, Laboratory of Extreme Environmental Biological Resources and Adaptive Evolution, Tibet University, Lhasa 850000, China
| | - Xue Qiao
- College of Science, Research Center for Ecology, Laboratory of Extreme Environmental Biological Resources and Adaptive Evolution, Tibet University, Lhasa 850000, China
| | - Zhiquan Tian
- College of Science, Research Center for Ecology, Laboratory of Extreme Environmental Biological Resources and Adaptive Evolution, Tibet University, Lhasa 850000, China
| | - Peter J Stang
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Shijun Li
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Xuechuan Hong
- State Key Laboratory of Virology, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE) and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China.,College of Science, Research Center for Ecology, Laboratory of Extreme Environmental Biological Resources and Adaptive Evolution, Tibet University, Lhasa 850000, China
| | - Yuling Xiao
- State Key Laboratory of Virology, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE) and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China.,College of Science, Research Center for Ecology, Laboratory of Extreme Environmental Biological Resources and Adaptive Evolution, Tibet University, Lhasa 850000, China.,Shenzhen Institute of Wuhan University, Shenzhen 518057, China
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López S, Gracia I, García MT, Rodríguez JF, Ramos MJ. Synthesis and Operating Optimization of the PEG Conjugate via CuAAC in scCO 2. ACS OMEGA 2021; 6:6163-6171. [PMID: 33718707 PMCID: PMC7948234 DOI: 10.1021/acsomega.0c05466] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
A new sustainable green protocol for obtaining polyethylene glycol (PEG) conjugates, with a prototype molecule, which in this work was coumarin, by means of click chemistry is presented. The organic solvents commonly used for this type of reaction were replaced by supercritical carbon dioxide (scCO2). The synthesis and characterization of PEG-coumarin were successfully reported using FTIR, 1H NMR, and MALDI TOF. Subsequently, a preliminary study was carried out using the response surface methodology to examine the variables that most affect the use of scCO2 as a reaction medium. The main effects caused by these variables, individually and their binary interaction, have been estimated. The response surface methodology has been used in this work to screen variables using a factorial design 23. The p-values of temperature and pressure were 0.006 and 0.0117, being therefore the most significant variables of the response surface methodology study. Subsequently, a more intensive study has been carried out on the variables that have shown the greatest significant effect on reaction performance where an 82.32% synthesis success was achieved, which broadens the scope of the use of scCO2 as a reaction medium. The conjugated coumarin with mPEG-alkyne and coumarin were evaluated for their in vitro antioxidant activities by the DPPH radical scavenging assay and were found to exhibit substantial activities. The click product showed comparable or even better efficacy than the initial coumarin.
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Cazin I, Rossegger E, Guedes de la Cruz G, Griesser T, Schlögl S. Recent Advances in Functional Polymers Containing Coumarin Chromophores. Polymers (Basel) 2020; 13:E56. [PMID: 33375724 PMCID: PMC7794725 DOI: 10.3390/polym13010056] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/19/2020] [Accepted: 12/20/2020] [Indexed: 11/17/2022] Open
Abstract
Natural and synthetic coumarin derivatives have gained increased attention in the design of functional polymers and polymer networks due to their unique optical, biological, and photochemical properties. This review provides a comprehensive overview over recent developments in macromolecular architecture and mainly covers examples from the literature published from 2004 to 2020. Along with a discussion on coumarin and its photochemical properties, we focus on polymers containing coumarin as a nonreactive moiety as well as polymer systems exploiting the dimerization and/or reversible nature of the [2πs + 2πs] cycloaddition reaction. Coumarin moieties undergo a reversible [2πs + 2πs] cycloaddition reaction upon irradiation with specific wavelengths in the UV region, which is applied to impart intrinsic healability, shape-memory, and reversible properties into polymers. In addition, coumarin chromophores are able to dimerize under the exposure to direct sunlight, which is a promising route for the synthesis and cross-linking of polymer systems under "green" and environment-friendly conditions. Along with the chemistry and design of coumarin functional polymers, we highlight various future application fields of coumarin containing polymers involving tissue engineering, drug delivery systems, soft robotics, or 4D printing applications.
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Affiliation(s)
- Ines Cazin
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, 8700 Leoben, Austria; (I.C.); (E.R.)
| | - Elisabeth Rossegger
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, 8700 Leoben, Austria; (I.C.); (E.R.)
| | - Gema Guedes de la Cruz
- Department Polymer Engineering and Science, Institute Chemistry of Polymeric Materials, Montanuniversitaet Leoben, Otto Glöckel-Strasse 2, 8700 Leoben, Austria; (G.G.d.l.C.); (T.G.)
| | - Thomas Griesser
- Department Polymer Engineering and Science, Institute Chemistry of Polymeric Materials, Montanuniversitaet Leoben, Otto Glöckel-Strasse 2, 8700 Leoben, Austria; (G.G.d.l.C.); (T.G.)
| | - Sandra Schlögl
- Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, 8700 Leoben, Austria; (I.C.); (E.R.)
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Ouhajji S, van Ravensteijn BGP, Fernández-Rico C, Lacina KS, Philipse AP, Petukhov AV. Wet-Chemical Synthesis of Chiral Colloids. ACS NANO 2018; 12:12089-12095. [PMID: 30428258 PMCID: PMC6307084 DOI: 10.1021/acsnano.8b05065] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 11/14/2018] [Indexed: 05/22/2023]
Abstract
We disclose a method for the synthesis of chiral colloids from spontaneously formed hollow sugar-surfactant microtubes with internally confined mobile colloidal spheres. Key feature of our approach is the grafting of colloid surfaces with photoresponsive coumarin moieties, which allow for UV-induced, covalent clicking of colloids into permanent chains, with morphologies set by the colloid-to-tube diameter ratio. Subsequent dissolution of tube confinement yields aqueous suspensions that comprise bulk quantities of a variety of linear chains, including single helical chains of polystyrene colloids. These colloidal equivalents of chiral (DNA) molecules are intended for microscopic study of chiral dynamics on a single-particle level.
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Affiliation(s)
- Samia Ouhajji
- Van
’t Hoff Laboratory for Physical and Colloid Chemistry, Debye
Institute for Nanomaterials Science, Utrecht
University, Padualaan 8, 3584 CH Utrecht, The Netherlands
- E-mail:
| | - Bas G. P. van Ravensteijn
- Van
’t Hoff Laboratory for Physical and Colloid Chemistry, Debye
Institute for Nanomaterials Science, Utrecht
University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Carla Fernández-Rico
- Van
’t Hoff Laboratory for Physical and Colloid Chemistry, Debye
Institute for Nanomaterials Science, Utrecht
University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Kanvaly S. Lacina
- Van
’t Hoff Laboratory for Physical and Colloid Chemistry, Debye
Institute for Nanomaterials Science, Utrecht
University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Albert P. Philipse
- Van
’t Hoff Laboratory for Physical and Colloid Chemistry, Debye
Institute for Nanomaterials Science, Utrecht
University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Andrei V. Petukhov
- Van
’t Hoff Laboratory for Physical and Colloid Chemistry, Debye
Institute for Nanomaterials Science, Utrecht
University, Padualaan 8, 3584 CH Utrecht, The Netherlands
- Laboratory
of Physical Chemistry, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
- E-mail:
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Meng F, Qiao Z, Yao Y, Luo J. Synthesis of polyurethanes with pendant azide groups attached on the soft segments and the surface modification with mPEG by click chemistry for antifouling applications. RSC Adv 2018; 8:19642-19650. [PMID: 35540978 PMCID: PMC9080695 DOI: 10.1039/c8ra02912a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 05/23/2018] [Indexed: 01/06/2023] Open
Abstract
Polyurethane with pendant azide groups on the soft segment (PU-GAP) was prepared in this study to further increase the content of reactive azide groups and improve their surfaces enrichment for further functionalization. Polymer diols with pendant azide groups (GAP) were prepared by transforming the pendant chlorine groups at polyepichlorohydrin (PECH) into azide groups with sodium azide. The prepared PECH, GAP and PU-GAP was characterized by GPC, 1H NMR and FTIR. Propargylic mPEG (mPEG-alkyne) was used as model surface modification reagents which was grafted on the prepared azido containing polyurethane films via click chemistry. The surface morphology, chemical composition and wettabilities were studied by SEM, XPS and water contact angle (WCA) analysis, respectively. SEM results demonstrated different surface topologies between mPEG modified PU surface and original PU surface. XPS and WCA analysis proved the successful grafting of mPEG on the pendant azide groups of PUs. The mPEG modified PU surfaces demonstrated good antifouling activities against model bacteria and mPEG with larger molecular weights modified surfaces showed better resistance efficiency to attachment of bacteria. Therefore, the surface reactive polyurethane we prepared can be a universal platform for further functionalization according actual applications. Polyurethane with pendant azide groups on the soft segment which can be an universal platform for further functionalization according actual applications.![]()
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Affiliation(s)
- Fancui Meng
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- 610041 Chengdu
- China
| | - Zhuangzhuang Qiao
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- 610041 Chengdu
- China
| | - Yan Yao
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- 610041 Chengdu
- China
| | - Jianbin Luo
- College of Chemistry and Environmental Protection Engineering
- Southwest Minzu University
- 610041 Chengdu
- China
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Behl G, Kumar P, Sikka M, Fitzhenry L, Chhikara A. PEG-coumarin nanoaggregates as π-π stacking derived small molecule lipophile containing self-assemblies for anti-tumour drug delivery. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 29:360-375. [PMID: 29271302 DOI: 10.1080/09205063.2017.1421346] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Polymeric self-assemblies formed by non-covalent interactions such as hydrophobic interactions, hydrogen bonding, π-π stacking, host-guest and electrostatic interactions have been utilised widely and exhibit controlled release of encapsulated drug. Beside carrier-carrier interactions, small molecule amphiphiles exhibiting carrier-drug interactions have recently been an area of interest for cancer drug delivery, as most of the hydrophobic anti-tumour drugs are aromatic and exhibit π-π conjugated structure. In the present study PEG-coumarin (PC) conjugates forming self-assembled nanoaggregates were synthesised with PEG (polyethylene glycol) as hydrophilic block and coumarin as small molecule lipophilic segment. Curcumin (CUR) as model conjugated aromatic drug was loaded in to the nanoaggregates via dual hydrophobic and π-π stacking interactions. The interactions between the conjugates and CUR, drug release profile and in vitro anti-tumour efficacy were investigated in detail. CUR-loaded nanoaggregate self-assembly was driven by π-π interactions and a maximum loading level of about 18 wt.% (~60 % encapsulation efficiency) was achieved. The average hydrodynamic diameter (Dav) was in the range of 120-160 nm and a spherical morphology was observed by transmission electron microscopy (TEM). A sustained release of CUR was observed for 90 h. Cytotoxicity evaluation of CUR-loaded nanoaggregates on pancreatic cancer cell lines indicated higher efficacy, IC50 ~11 and ~15 μM as compared to free CUR, IC50 ~14 and ~20 μM on human pancreatic carcinoma (MIA PaCa-2) and human pancreatic duct epithelioid carcinoma (PANC-1) cell lines respectively. PC conjugates provided a new strategy of fabricating nanoparticles for drug delivery and may form the basis for the development of advanced biomaterials in near future.
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Affiliation(s)
- Gautam Behl
- a Pharmaceutical and Molecular Biotechnology Research Centre, Department of Science , Waterford Institute of Technology , Waterford , Ireland
| | - Parveen Kumar
- b Department of Chemistry , Dyal Singh College, University of Delhi , Delhi , India
| | - Manisha Sikka
- c Dr. B.R. Ambedkar Center for Biomedical Research , University of Delhi , Delhi , India
| | - Laurence Fitzhenry
- a Pharmaceutical and Molecular Biotechnology Research Centre, Department of Science , Waterford Institute of Technology , Waterford , Ireland
| | - Aruna Chhikara
- b Department of Chemistry , Dyal Singh College, University of Delhi , Delhi , India
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Synthesis of Two Coumarin-Derived Schiff Bases and Investigation of theirs Selectivity for Zn2+. J Fluoresc 2017; 27:1331-1337. [DOI: 10.1007/s10895-017-2067-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 03/02/2017] [Indexed: 11/26/2022]
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13
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Parsamanesh M, Dadkhah Tehrani A. Synthesize of new fluorescent polymeric nanoparticle using modified cellulose nanowhisker through click reaction. Carbohydr Polym 2016; 136:1323-31. [DOI: 10.1016/j.carbpol.2015.10.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 10/03/2015] [Accepted: 10/11/2015] [Indexed: 12/28/2022]
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