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Pranav U, Malhotra M, Pathan S, Jayakannan M. Structural Engineering of Star Block Biodegradable Polymer Unimolecular Micelles for Drug Delivery in Cancer Cells. ACS Biomater Sci Eng 2023; 9:743-759. [PMID: 36579913 DOI: 10.1021/acsbiomaterials.2c01201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The present investigation reports the structural engineering of biodegradable star block polycaprolactone (PCL) to tailor-make aggregated micelles and unimolecular micelles to study their effect on drug delivery aspects in cancer cell lines. Fully PCL-based star block copolymers were designed by varying the arm numbers from two to eight while keeping the arm length constant throughout. Multifunctional initiators were exploited for stepwise solvent-free melt ring-opening polymerization of ε-caprolactone and γ-substituted caprolactone to construct star block copolymers having a PCL hydrophobic core and a carboxylic PCL hydrophilic shell, respectively. A higher arm number and a higher degree of branching in star polymers facilitated the formation of unimolecular micelles as opposed to the formation of conventional multimicellar aggregates in lower arm analogues. The dense core of the unimolecular micelles enabled them to load high amounts of the anticancer drug doxorubicin (DOX, ∼12-15%) compared to the aggregated micelles (∼3-4%). The star unimolecular micelle completely degraded leading to 90% release of the loaded drug upon treatment with the lysosomal esterase enzyme in vitro. The anticancer efficacies of these DOX-loaded unimolecular micelles were tested in a breast cancer cell line (MCF-7), and their IC50 values were found to be much lower compared to those of aggregated micelles. Time-dependent cellular uptake studies by confocal microscopy revealed that unimolecular micelles were readily taken up by the cells, and enhancement of the drug concentration was observed at the intracellular level up to 36 h. The present work opens new synthetic strategies for building a next-generation biodegradable unimolecular micellar nanoplatform for drug delivery in cancer research.
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Affiliation(s)
- Upendiran Pranav
- Department of Chemistry, Indian Institute of Science Education and Research (IISER Pune), Dr. Homi Bhabha Road, Pune 411008 Maharashtra, India
| | - Mehak Malhotra
- Department of Chemistry, Indian Institute of Science Education and Research (IISER Pune), Dr. Homi Bhabha Road, Pune 411008 Maharashtra, India
| | - Shahidkhan Pathan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER Pune), Dr. Homi Bhabha Road, Pune 411008 Maharashtra, India
| | - Manickam Jayakannan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER Pune), Dr. Homi Bhabha Road, Pune 411008 Maharashtra, India
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A universal multivalent hyperbranched delivery platform for circumventing multidrug resistance via double camouflage and rapid bonding with cell. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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3
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Song FX, Xu X, Ding H, Yu L, Huang H, Hao J, Wu C, Liang R, Zhang S. Recent Progress in Nanomaterial-Based Biosensors and Theranostic Nanomedicine for Bladder Cancer. BIOSENSORS 2023; 13:106. [PMID: 36671940 PMCID: PMC9855444 DOI: 10.3390/bios13010106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/29/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
Bladder cancer (BCa) is one of the most expensive and common malignancies in the urinary system due to its high progression and recurrence rate. Although there are various methods, including cystoscopy, biopsy, and cytology, that have become the standard diagnosis methods for BCa, their intrinsic invasive and inaccurate properties need to be overcome. The novel urine cancer biomarkers are assisted by nanomaterials-based biosensors, such as field-effect transistors (FETs) with high sensitivity and specificity, which may provide solutions to these problems. In addition, nanomaterials can be applied for the advancement of next-generation optical imaging techniques and the contrast agents of conventional techniques; for example, magnetic resonance imaging (MRI) for the diagnosis of BCa. Regarding BCa therapy, nanocarriers, including mucoadhesive nanoparticles and other polymeric nanoparticles, successfully overcome the disadvantages of conventional intravesical instillation and improve the efficacy and safety of intravesical chemotherapy for BCa. Aside from chemotherapy, nanomedicine-based novel therapies, including photodynamic therapy (PDT), photothermal therapy (PTT), chemodynamic therapy (CDT), sonodynamic therapy (SDT), and combination therapy, have afforded us new ways to provide BC therapy and hope, which can be translated into the clinic. In addition, nanomotors and the nanomaterials-based solid tumor disassociation strategy provide new ideas for future research. Here, the advances in BCa diagnosis and therapy mentioned above are reviewed in this paper.
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Affiliation(s)
- Fan-Xin Song
- Department of Urology, The Third Affiliated Hospital of Shenzhen University, Shenzhen University, Shenzhen 518000, China
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
- College of Nano Science & Technology (CNST), Soochow University, Suzhou 215123, China
| | - Xiaojian Xu
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Hengze Ding
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
- College of Nano Science & Technology (CNST), Soochow University, Suzhou 215123, China
| | - Le Yu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
- College of Nano Science & Technology (CNST), Soochow University, Suzhou 215123, China
| | - Haochen Huang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
- College of Nano Science & Technology (CNST), Soochow University, Suzhou 215123, China
| | - Jinting Hao
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
- College of Nano Science & Technology (CNST), Soochow University, Suzhou 215123, China
| | - Chenghao Wu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
- College of Nano Science & Technology (CNST), Soochow University, Suzhou 215123, China
| | - Rui Liang
- Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Shaohua Zhang
- Department of Urology, The Third Affiliated Hospital of Shenzhen University, Shenzhen University, Shenzhen 518000, China
- Department of Urology, The Affiliated South China Hospital of Shenzhen University, Shenzhen University, Shenzhen 518000, China
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Jafari M, Abolmaali SS, Borandeh S, Najafi H, Zareshahrabadi Z, Heidari R, Azarpira N, Zomorodian K, Tamaddon AM. Amphiphilic hyperbranched polyglycerol nanoarchitectures for Amphotericin B delivery in Candida infections. BIOMATERIALS ADVANCES 2022; 139:212996. [PMID: 35891600 DOI: 10.1016/j.bioadv.2022.212996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 05/23/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
Although Amphotericin B (AMB) is considered the most effective anti-mycotic agent for treating Candida infections, its clinical use is limited due to its high toxicity. To address this issue, we developed cholesterol-based dendritic micelles of hyperbranched polyglycerol (HPG), including cholesterol-cored HPG (Chol-HPG) and cholesterol end-capped HPG (HPG@Chol), for AMB delivery. The findings suggested that the presence of cholesterol moieties could control AMB loading and release properties. Dendritic micelles inhibited AMB hemolysis and cytotoxicity in HEK 293 and RAW 264.7 cell lines while increasing antifungal activity against C. albicans biofilm formation. Furthermore, significantly lower levels of renal and liver toxicity biomarkers compared to Fungizone® ensured AMB-incorporated dendritic micelle biosafety, which was confirmed by histopathological evaluations. Overall, the Chol-HPG and HPG@Chol dendritic micelles may be a viable alternative to commercially available AMB formulations as well as an effective delivery system for other poorly soluble antifungal agents.
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Affiliation(s)
- Mahboobeh Jafari
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
| | - Samira Sadat Abolmaali
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran; Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
| | - Sedigheh Borandeh
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
| | - Haniyeh Najafi
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
| | - Zahra Zareshahrabadi
- Department of Parasitology & Mycology, School of Medicines, Shiraz University of Medical Sciences, Shiraz, PO Box 713484-5794, Iran
| | - Reza Heidari
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran
| | - Negar Azarpira
- Transplant Research Center, Shiraz University of Medical Sciences, Mohammad Rasoul-allah Research Tower, Shiraz, PO Box 7193711351, Iran
| | - Kamiar Zomorodian
- Department of Parasitology & Mycology, School of Medicines, Shiraz University of Medical Sciences, Shiraz, PO Box 713484-5794, Iran; Basic Sciences in Infectious Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, PO Box 713484-5794, Iran.
| | - Ali Mohammad Tamaddon
- Pharmaceutical Nanotechnology Department, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran; Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, PO Box 71345-1583, Iran.
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Javia A, Vanza J, Bardoliwala D, Ghosh S, Misra A, Patel M, Thakkar H. Polymer-drug conjugates: Design principles, emerging synthetic strategies and clinical overview. Int J Pharm 2022; 623:121863. [PMID: 35643347 DOI: 10.1016/j.ijpharm.2022.121863] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 05/06/2022] [Accepted: 05/23/2022] [Indexed: 10/18/2022]
Abstract
Adagen, an enzyme replacement treatment for adenosine deaminase deficiency, was the first protein-polymer conjugate to be approved in early 1990s. Post this regulatory approval, numerous polymeric drugs and polymeric nanoparticles have entered the market as advanced or next-generation polymer-based therapeutics, while many others have currently been tested clinically. The polymer conjugation to therapeutic moiety offers several advantages, like enhanced solubilization of drug, controlled release, reduced immunogenicity, and prolonged circulation. The present review intends to highlight considerations in the design of therapeutically effective polymer-drug conjugates (PDCs), including the choice of linker chemistry. The potential synthetic strategies to formulate PDCs have been discussed along with recent advancements in the different types of PDCs, i.e., polymer-small molecular weight drug conjugates, polymer-protein conjugates, and stimuli-responsive PDCs, which are under clinical/preclinical investigation. Current impediments and regulatory hurdles hindering the clinical translation of PDC into effective therapeutic regimens for the amelioration of disease conditions have been addressed.
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Affiliation(s)
- Ankit Javia
- Department of Pharmaceutics, Faculty of Pharmacy, Kalabhavan Campus, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat-390001, India
| | - Jigar Vanza
- Department of Pharmaceutics, Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, Changa, Gujarat-388421, India
| | - Denish Bardoliwala
- Department of Pharmaceutics, Faculty of Pharmacy, Kalabhavan Campus, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat-390001, India
| | - Saikat Ghosh
- Department of Pharmaceutics, Faculty of Pharmacy, Kalabhavan Campus, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat-390001, India
| | - Ambikanandan Misra
- Department of Pharmaceutics, Faculty of Pharmacy, Kalabhavan Campus, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat-390001, India; Department of Pharmaceutics, School of Pharmacy and Technology Management, SVKM's NMIMS, Shirpur, Maharashtra-425405, Indi
| | - Mrunali Patel
- Department of Pharmaceutics, Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, Changa, Gujarat-388421, India
| | - Hetal Thakkar
- Department of Pharmaceutics, Faculty of Pharmacy, Kalabhavan Campus, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat-390001, India.
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PEGylated dendritic polyurethane as unimolecular micelles for tumor chemotherapy: Effect of molecular architecture. Int J Pharm 2022; 616:121533. [PMID: 35121047 DOI: 10.1016/j.ijpharm.2022.121533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/21/2022] [Accepted: 01/28/2022] [Indexed: 12/11/2022]
Abstract
Unimolecular micelles have attracted intense interests as drug carriers for tumor chemotherapy owing to their superior stability in comparison with the self-assembled supramolecular ones. Among them, the dendritic polymers with the polar frameworks could favour the loading of chemotherapeutic drugs rather than the hyperbranched polymers via radical polymerization, by enhancing the interaction with drugs. While the tedious synthesis procedure for dendritic polymers could be simplified with the construction principle on urethane chemistry. Here, the PEGylated dendritic polyurethanes, Ph-DPUGly-PEG and Ph-DPUTEA-PEG, were designed with glycerol or triethanolamine as monomer, respectively. The effect of the molecular architecture of the Ph-DPU-PEGs unimolecular micelles on the controlled drug releasing performance was compared. It was found that the Ph-DPUTEA-PEG with tertiary amine as branching points could efficiently endow the pH-triggered drug release, due to its protonation.
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Keller CB, Walley SE, Jarand CW, He J, Ejaz M, Savin DA, Grayson SM. Synthesis of poly(caprolactone)- block-poly[oligo(ethylene glycol)methyl methacrylate] amphiphilic grafted nanoparticles (AGNs) as improved oil dispersants. Polym Chem 2021. [DOI: 10.1039/d1py00418b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Amphiphilic polymers have been covalently grafted from a SiO2 core with room temperature polymerizations. These amphiphilic grafted nanoparticles have been found to uptake up to 30 times their mass in crude oil within a 24 hour window.
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Affiliation(s)
- Christopher B. Keller
- Department of Chemistry, Percival Stern Hall, Tulane University, New Orleans, Louisiana, 70118, USA
| | - Susan E. Walley
- Department of Chemistry, Leigh Hall, University of Florida, Gainesville, Florida 32611, USA
| | - Curtis W. Jarand
- Department of Physics and Engineering Physics, Percival Stern Hall, Tulane University, New Orleans, Louisiana, 70118, USA
| | - Jibao He
- Coordinated Instrument Facility, Percival Stern Hall, Tulane University, New Orleans, Louisiana, 70118, USA
| | - Muhammad Ejaz
- Department of Chemistry, Percival Stern Hall, Tulane University, New Orleans, Louisiana, 70118, USA
| | - Daniel A. Savin
- Department of Chemistry, Leigh Hall, University of Florida, Gainesville, Florida 32611, USA
| | - Scott M. Grayson
- Department of Chemistry, Percival Stern Hall, Tulane University, New Orleans, Louisiana, 70118, USA
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Rahman M, Alrobaian M, Almalki WH, Mahnashi MH, Alyami BA, Alqarni AO, Alqahtani YS, Alharbi KS, Alghamdi S, Panda SK, Fransis A, Hafeez A, Beg S. Superbranched polyglycerol nanostructures as drug delivery and theranostics tools for cancer treatment. Drug Discov Today 2020; 26:1006-1017. [PMID: 33217598 DOI: 10.1016/j.drudis.2020.11.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 10/03/2020] [Accepted: 11/06/2020] [Indexed: 12/28/2022]
Abstract
Hyperbranched polymers (HBPs), such as hyperbranched polyglycerols (HPGs) with a dendritic configuration, have been recognized for their excellent biocompatibility and multifunctionalization. HPGs have been studied for use in the delivery diagnostic, imaging and therapeutic molecules in the area of nanobiomedicine. They show superior characteristics to linear polymers and dendrimers, such as compact structure, a simple manufacturing process with easy functionalization ability, low viscosity, and high stability. Owing to these advantages, HPGs are now considered promising carriers for drug delivery, diagnostics, imaging, and theranostics applications for cancer treatment. In this review, we also discuss safety aspects of HPG-based nanoformulations in various animal models and the clinical translation status of such polymers for real-time applications.
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Affiliation(s)
- Mahfoozur Rahman
- Department of Pharmaceutical Sciences, Shalom Institute of Health & Allied Sciences, Sam Higginbottom University of Agriculture, Technology & Sciences, Allahabad, India.
| | - Majed Alrobaian
- Department of Pharmaceutics & and Pharmaceutical Technology, College of Pharmacy, Taif University, Taif, Saudi Arabia
| | - Waleed H Almalki
- Department of Pharmacology and Toxicology, College of Pharmacy, Umm Al-Qura University, Saudi Arabia
| | - Mater H Mahnashi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Bandar A Alyami
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Ali O Alqarni
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Yahya S Alqahtani
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Khalid S Alharbi
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakakah, Saudi Arabia
| | - Saad Alghamdi
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Sunil Kumar Panda
- Research Director, Menovo Pharmaceuticals Research Lab, Ningbo, People's Republic of China
| | - Alberte Fransis
- Department of Biochemistry, Dezhou People's Hospital, Dezhou, China
| | - Abdul Hafeez
- Glocal School of Pharmacy, Glocal University, Mirzapur Pole, Saharanpur, Uttar Pradesh, India
| | - Sarwar Beg
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Nanomedicine Research Lab, Jamia Hamdard, New Delhi, India.
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Bej R, Achazi K, Haag R, Ghosh S. Polymersome Formation by Amphiphilic Polyglycerol-b-polydisulfide-b-polyglycerol and Glutathione-Triggered Intracellular Drug Delivery. Biomacromolecules 2020; 21:3353-3363. [DOI: 10.1021/acs.biomac.0c00775] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Raju Bej
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
| | - Katharina Achazi
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Rainer Haag
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
- Technical Research Center, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, India
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Jafari M, Abolmaali SS, Najafi H, Tamaddon AM. Hyperbranched polyglycerol nanostructures for anti-biofouling, multifunctional drug delivery, bioimaging and theranostic applications. Int J Pharm 2020; 576:118959. [DOI: 10.1016/j.ijpharm.2019.118959] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 12/09/2019] [Accepted: 12/12/2019] [Indexed: 12/22/2022]
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Buchwalder C, Jaraquemada-Peláez MDG, Rousseau J, Merkens H, Rodríguez-Rodríguez C, Orvig C, Bénard F, Schaffer P, Saatchi K, Häfeli UO. Evaluation of the Tetrakis(3-Hydroxy-4-Pyridinone) Ligand THPN with Zirconium(IV): Thermodynamic Solution Studies, Bifunctionalization, and in Vivo Assessment of Macromolecular 89Zr-THPN-Conjugates. Inorg Chem 2019; 58:14667-14681. [DOI: 10.1021/acs.inorgchem.9b02350] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christian Buchwalder
- University of British Columbia, Faculty of Pharmaceutical Sciences, 2405 Wesbrook Mall, Vancouver, BC V6T 1Z3, Canada
| | | | - Julie Rousseau
- BC Cancer Agency, Department of Functional Imaging, 600 West 10th Avenue, Vancouver, BC V5Z 4E6, Canada
| | - Helen Merkens
- BC Cancer Agency, Department of Functional Imaging, 600 West 10th Avenue, Vancouver, BC V5Z 4E6, Canada
| | - Cristina Rodríguez-Rodríguez
- University of British Columbia, Faculty of Pharmaceutical Sciences, 2405 Wesbrook Mall, Vancouver, BC V6T 1Z3, Canada
- University of British Columbia, Department of Physics & Astronomy, 6224 Agricultural Road, Vancouver, BC V6T 1Z1, Canada
| | - Chris Orvig
- Medicinal Inorganic Chemistry Group, University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - François Bénard
- BC Cancer Agency, Department of Functional Imaging, 600 West 10th Avenue, Vancouver, BC V5Z 4E6, Canada
| | - Paul Schaffer
- TRIUMF, Life Sciences Division, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada
| | - Katayoun Saatchi
- University of British Columbia, Faculty of Pharmaceutical Sciences, 2405 Wesbrook Mall, Vancouver, BC V6T 1Z3, Canada
| | - Urs O. Häfeli
- University of British Columbia, Faculty of Pharmaceutical Sciences, 2405 Wesbrook Mall, Vancouver, BC V6T 1Z3, Canada
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12
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Ru Y, Liu Y. Effects of macromolecular topology on the encapsulation and release of phenolphthalein from hyperbranced glycerol modified β-cyclodextrin. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2019. [DOI: 10.1080/10601325.2018.1562304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Yanyan Ru
- Department of Chemical Engineering, School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an, China
| | - Yuhong Liu
- Department of Chemical Engineering, School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an, China
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13
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Pandey R, Jackson JK, Liggins R, Mugabe C, Burt HM. Enhanced taxane uptake into bladder tissues following co-administration with either mitomycin C, doxorubicin or gemcitabine: association to exfoliation processes. BJU Int 2018; 122:898-908. [PMID: 29862643 DOI: 10.1111/bju.14423] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To investigate the effect of three anticancer drugs (mitomycin c (MMC), doxorubicin or gemcitabine) on bladder wall morphology and the uptake of paclitaxel or docetaxel following coadministration. The primary objective of this study was to measure the uptake of MMC, doxorubicin or gemcitabine with or without exposure of the tissue to amine terminated cationic nanoparticles (CNPs) and to investigate any possible exfoliation effects of the three drugs on intact bladder tissue. The secondary objective was to investigate the uptake of taxane drugs (docetaxel, DTX) and paclitaxel, (PTX) from surfactant micelle formulations in the presence of MMC, doxorubicin or gemcitabine. MATERIALS AND METHODS Sections of fresh pig bladder tissue were incubated in Franz diffusion cells with the urothelial side exposed to solutions of doxorubicin, MMC and gemcitabine containing radioactive drug for 90 min. Some tissue samples were simultaneously exposed to each of the three drugs in combination with the surfactant micelle formulations of PTX (Taxol) or DTX (Taxotere). Tissue sections were then cryostat sectioned for drug quantitation by liquid scintillation counting or fixed for scanning electron microscopy and haematoxylin and eosin staining. RESULTS All three drugs caused exfoliation of the urothelial layer of bladder tissues. Drug uptake studies showed that all three drugs effectively penetrated the lamina propria through to the muscular layer over a 2-h incubation and these levels were unaffected by pre-treatment with CNPs. The uptake levels of the taxane drugs PTX and DTX were significantly enhanced following simultaneous treatment of bladders with MMC, doxorubicin or gemcitabine. CONCLUSION The exfoliation effects of MMC, doxorubicin and gemcitabine allow for good tissue penetration of these drugs with no additional effect from CNP treatment of bladders. The observed exfoliation effect of these amine-containing drugs probably arises from a cationic interaction with the mucus and urothelium cell layer in a manner similar to that previously reported for CNPs. These studies suggest that the lack of long-term clinical efficacy of these drugs may not arise from poor intravesical drug penetration but may result from a rapid diffusion of the drugs into the deeper vascularised muscular region with rapid drug clearance. The enhanced uptake of PTX or DTX following co-administration with MMC, doxorubicin or gemcitabine probably arises from the removal of the urothelial barrier by exfoliation allowing for improved taxane partitioning into superficial layers. These effects may allow for dual drug intravesical strategies offering greatly improved taxane uptake and potential additive drug effects for improved efficacy.
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Affiliation(s)
- Rakhi Pandey
- Pharmaceutical Science, The University of British Columbia, Vancouver, BC, Canada
| | - John K Jackson
- Pharmaceutical Science, The University of British Columbia, Vancouver, BC, Canada
| | - Richard Liggins
- Centre for Drug Research and Development, The University of British Columbia, Vancouver, BC, Canada
| | - Clement Mugabe
- Centre for Drug Research and Development, The University of British Columbia, Vancouver, BC, Canada
| | - Helen M Burt
- Pharmaceutical Science, The University of British Columbia, Vancouver, BC, Canada
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14
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Ban Q, Du J, Sun W, Chen J, Wu S, Kong J. Intramolecular Copper-Containing Hyperbranched Polytriazole Assemblies for Label-Free Cellular Bioimaging and Redox-Triggered Copper Complex Delivery. Macromol Rapid Commun 2018; 39:e1800171. [PMID: 29748987 DOI: 10.1002/marc.201800171] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 03/26/2018] [Indexed: 12/15/2022]
Abstract
Intramolecular Cu-containing amphiphilic hyperbranched polytriazoles are purposefully designed and synthesized via a Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction, and are self-assembled into spherical assemblies. Based on the metal coordination ability of triazole groups, the copper catalyst can be intramolecularly coordinated with triazole groups in the CuAAC, producing the copper-triazole coordination polyprodrugs. Unexpectedly, the amphiphilic hyperbranched polytriaozle assemblies can also be applied as fluorescent nanoprobes with aggregation-induced emission enhancement. The cellular uptake verifies their functional application for cellular bioimaging. Furthermore, the results of cell viability indicate that the mPEG-hb-S-S-PTAs assemblies are effective copper delivery systems for cancer therapy by releasing the anticancer copper-triazole coordination complexes. Therefore, the amphiphilic hyperbranched polytriazoles may have very promising applications in complex copper delivery and label-free cellular bioimaging.
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Affiliation(s)
- Qingfu Ban
- MOE Key Laboratory of Materials Physics and Chemistry in Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Junjie Du
- MOE Key Laboratory of Materials Physics and Chemistry in Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Wen Sun
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Jianxin Chen
- MOE Key Laboratory of Materials Physics and Chemistry in Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Si Wu
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.,CAS Key Laboratory of Soft Matter Chemistry, Key Laboratory of Optoelectronic Science and Technology, Innovation Centre of Chemistry for Energy Materials, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Jie Kong
- MOE Key Laboratory of Materials Physics and Chemistry in Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
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15
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Christadore L, Grinstaff MW, Schaus SE. Fluorescent Dendritic Micro-Hydrogels: Synthesis, Analysis and Use in Single-Cell Detection. Molecules 2018; 23:E936. [PMID: 29669998 PMCID: PMC6017717 DOI: 10.3390/molecules23040936] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/10/2018] [Accepted: 04/11/2018] [Indexed: 01/19/2023] Open
Abstract
Hydrogels are of keen interest for a wide range of medical and biotechnological applications including as 3D substrate structures for the detection of proteins, nucleic acids, and cells. Hydrogel parameters such as polymer wt % and crosslink density are typically altered for a specific application; now, fluorescence can be incorporated into such criteria by specific macromonomer selection. Intrinsic fluorescence was observed at λmax 445 nm from hydrogels polymerized from lysine and aldehyde- terminated poly(ethylene glycol) macromonomers upon excitation with visible light. The hydrogel’s photochemical properties are consistent with formation of a nitrone functionality. Printed hydrogels of 150 μm were used to detect individual cell adherence via a decreased in fluorescence. The use of such intrinsically fluorescent hydrogels as a platform for cell sorting and detection expands the current repertoire of tools available.
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Affiliation(s)
- Lisa Christadore
- Department of Chemistry, Boston University, Boston, MA 02215, USA.
| | - Mark W Grinstaff
- Department of Chemistry, Boston University, Boston, MA 02215, USA.
- Departments of Biomedical Engineering and Medicine, Boston University, Boston, MA 02215, USA.
| | - Scott E Schaus
- Department of Chemistry, Boston University, Boston, MA 02215, USA.
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16
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Solubilization of phenols by multimolecular aggregates formed by low molecular weight hyperbranched polyglycidol. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.02.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Schwarzl R, Du F, Haag R, Netz RR. General method for the quantification of drug loading and release kinetics of nanocarriers. Eur J Pharm Biopharm 2017; 116:131-137. [DOI: 10.1016/j.ejpb.2016.12.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 10/20/2016] [Accepted: 12/20/2016] [Indexed: 10/20/2022]
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18
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Prasad S, Achazi K, Böttcher C, Haag R, Sharma SK. Fabrication of nanostructures through self-assembly of non-ionic amphiphiles for biomedical applications. RSC Adv 2017. [DOI: 10.1039/c6ra28654b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Non-cytotoxic and non-ionic amphiphiles having supramolecular aggregation behavior were synthesized from biocompatible starting materials using a “greener” chemo-enzymatic method.
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Affiliation(s)
- Suchita Prasad
- Department of Chemistry
- University of Delhi
- Delhi 110 007
- India
| | - Katharina Achazi
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Rainer Haag
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Sunil K. Sharma
- Department of Chemistry
- University of Delhi
- Delhi 110 007
- India
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19
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Abbina S, Vappala S, Kumar P, Siren EMJ, La CC, Abbasi U, Brooks DE, Kizhakkedathu JN. Hyperbranched polyglycerols: recent advances in synthesis, biocompatibility and biomedical applications. J Mater Chem B 2017; 5:9249-9277. [DOI: 10.1039/c7tb02515g] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hyperbranched polyglycerol is one of the most widely studied biocompatible dendritic polymer and showed promising applications. Here, we summarized the recent advancements in the field.
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Affiliation(s)
- Srinivas Abbina
- Department of Pathology and Laboratory Medicine
- University of British Columbia
- Vancouver
- Canada
- Center for Blood Research
| | - Sreeparna Vappala
- Department of Pathology and Laboratory Medicine
- University of British Columbia
- Vancouver
- Canada
- Center for Blood Research
| | - Prashant Kumar
- Center for Blood Research
- University of British Columbia
- Vancouver
- Canada
- Department of Chemistry
| | - Erika M. J. Siren
- Center for Blood Research
- University of British Columbia
- Vancouver
- Canada
- Department of Chemistry
| | - Chanel C. La
- Center for Blood Research
- University of British Columbia
- Vancouver
- Canada
- Department of Chemistry
| | - Usama Abbasi
- Department of Pathology and Laboratory Medicine
- University of British Columbia
- Vancouver
- Canada
- Center for Blood Research
| | - Donald E. Brooks
- Department of Pathology and Laboratory Medicine
- University of British Columbia
- Vancouver
- Canada
- Center for Blood Research
| | - Jayachandran N. Kizhakkedathu
- Department of Pathology and Laboratory Medicine
- University of British Columbia
- Vancouver
- Canada
- Center for Blood Research
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20
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Du F, Hönzke S, Neumann F, Keilitz J, Chen W, Ma N, Hedtrich S, Haag R. Development of biodegradable hyperbranched core-multishell nanocarriers for efficient topical drug delivery. J Control Release 2016; 242:42-49. [PMID: 27374627 DOI: 10.1016/j.jconrel.2016.06.048] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 06/23/2016] [Accepted: 06/29/2016] [Indexed: 10/21/2022]
Abstract
The topical application of drugs allows for a local application in skin disease and can reduce side effects. Here we present biodegradable core-multishell (CMS) nanocarriers which are composed of a hyperbranched polyglycerol core functionalized with diblock copolymers consisting of polycaprolactone (PCL) and poly(ethylene glycol) (mPEG) as the outer shell. The anti-inflammatory drug Dexamethasone (Dexa) was loaded into these CMS nanocarriers. DLS results suggested that Dexa loaded nanoparticles mostly act as a unimolecular carrier system. With longer PCL segments, a better transport capacity is observed. In vitro skin permeation studies showed that CMS nanocarriers could improve the Nile red penetration through the skin by up to 7 times, compared to a conventional cream formulation. Interestingly, covalently FITC-labeled CMS nanocarriers remain in the stratum corneum layer. This suggests the enhancement is due to the release of cargo after being transported into the stratum corneum by the CMS nanocarriers. In addition, the hPG-PCL-mPEG CMS nanocarriers exhibited good stability, low cytotoxicity, and their production can easily be scaled up, which makes them promising nanocarriers for topical drug delivery.
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Affiliation(s)
- Fang Du
- Institut für Organische Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany
| | - Stefan Hönzke
- Institute of Pharmacy (Pharmacology and Toxicology), Freie Universität Berlin, 14195 Berlin, Germany
| | - Falko Neumann
- Institut für Organische Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany; Institute of Biomaterials Science, Helmholtz-Zentrum Geesthacht, 14513 Teltow, Germany
| | - Juliane Keilitz
- Institut für Organische Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany
| | - Wei Chen
- Institut für Organische Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany
| | - Nan Ma
- Institut für Organische Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany; Institute of Biomaterials Science, Helmholtz-Zentrum Geesthacht, 14513 Teltow, Germany
| | - Sarah Hedtrich
- Institute of Pharmacy (Pharmacology and Toxicology), Freie Universität Berlin, 14195 Berlin, Germany
| | - Rainer Haag
- Institut für Organische Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany.
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21
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Gosecki M, Gadzinowski M, Gosecka M, Basinska T, Slomkowski S. Polyglycidol, Its Derivatives, and Polyglycidol-Containing Copolymers-Synthesis and Medical Applications. Polymers (Basel) 2016; 8:E227. [PMID: 30979324 PMCID: PMC6432134 DOI: 10.3390/polym8060227] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 05/30/2016] [Accepted: 05/31/2016] [Indexed: 12/24/2022] Open
Abstract
Polyglycidol (or polyglycerol) is a biocompatible polymer with a main chain structure similar to that of poly(ethylene oxide) but with a ⁻CH₂OH reactive side group in every structural unit. The hydroxyl groups in polyglycidol not only increase the hydrophilicity of this polymer but also allow for its modification, leading to polymers with carboxyl, amine, and vinyl groups, as well as to polymers with bonded aliphatic chains, sugar moieties, and covalently immobilized bioactive compounds in particular proteins. The paper describes the current state of knowledge on the synthesis of polyglycidols with various topology (linear, branched, and star-like) and with various molar masses. We provide information on polyglycidol-rich surfaces with protein-repelling properties. We also describe methods for the synthesis of polyglycidol-containing copolymers and the preparation of nano- and microparticles that could be derived from these copolymers. The paper summarizes recent advances in the application of polyglycidol and polyglycidol-containing polymers as drug carriers, reagents for diagnostic systems, and elements of biosensors.
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Affiliation(s)
- Mateusz Gosecki
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
| | - Mariusz Gadzinowski
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
| | - Monika Gosecka
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
| | - Teresa Basinska
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
| | - Stanislaw Slomkowski
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
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22
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Pandey R, Jackson JK, Mugabe C, Liggins R, Burt HM. Tissue Permeability Effects Associated with the Use of Mucoadhesive Cationic Nanoformulations of Docetaxel in the Bladder. Pharm Res 2016; 33:1850-61. [DOI: 10.1007/s11095-016-1920-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 04/01/2016] [Indexed: 10/21/2022]
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23
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Alizadeh Noghani M, Brooks DE. Progesterone binding nano-carriers based on hydrophobically modified hyperbranched polyglycerols. NANOSCALE 2016; 8:5189-5199. [PMID: 26878269 DOI: 10.1039/c5nr08175k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Progesterone (Pro) is a potent neurosteroid and promotes recovery from moderate Traumatic Brain Injury but its clinical application is severely impeded by its poor water solubility. Here we demonstrate that reversibly binding Pro within hydrophobically modified hyperbranched polyglycerol (HPG-Cn-MPEG) enhances its solubility, stability and bioavailability. Synthesis, characterization and Pro loading into HPG-Cn-MPEG is described. The release kinetics are correlated with structural properties and the results of Differential Scanning Calorimetry studies of a family of HPG-Cn-MPEGs of varying molecular weight and alkylation. While the maximum amount of Pro bound correlates well with the amount of alkyl carbon per molecule contributing to its hydrophobicity, the dominant first order rate constant for Pro release correlates strongly with the amount of structured or bound water in the dendritic domain of the polymer. The results provide evidence to justify more detailed studies of interactions with biological systems, both single cells and in animal models.
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Affiliation(s)
- M Alizadeh Noghani
- Centre for Blood Research and Departments of Chemistry, University of British Columbia, Vancouver, BC, Canada V6T 1Z3
| | - D E Brooks
- Centre for Blood Research and Departments of Chemistry, University of British Columbia, Vancouver, BC, Canada V6T 1Z3 and Centre for Blood Research and Departments of Chemistry and of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada V6T 1Z3.
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24
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Yu C, Ma L, Li K, Li S, Liu Y, Zhou Y, Yan D. Molecular dynamics simulation studies of hyperbranched polyglycerols and their encapsulation behaviors of small drug molecules. Phys Chem Chem Phys 2016; 18:22446-57. [DOI: 10.1039/c6cp03726g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Computer simulation could disclose more details about the conformations of HPGs and their encapsulation behaviors of guest molecules.
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Affiliation(s)
- Chunyang Yu
- School of Chemistry & Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Li Ma
- School of Chemistry & Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Ke Li
- School of Chemistry & Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Shanlong Li
- School of Chemistry & Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Yannan Liu
- School of Chemistry & Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Yongfeng Zhou
- School of Chemistry & Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Deyue Yan
- School of Chemistry & Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
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25
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Hu R, Wan D, Jin M. Molecular nanocapsule-decorated porous monolith: preparation and elimination of cationic dyes from water. RSC Adv 2016. [DOI: 10.1039/c6ra10029e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A reverse-micelle-like dendritic amphiphile can directly lead to a porous adsorbent with the pores carboxyl-functionalized.
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Affiliation(s)
- Ruoxi Hu
- Institute of Functional Polymers
- School of Materials Science and Engineering
- Tongji University
- Shanghai 201804
- China
| | - Decheng Wan
- Institute of Functional Polymers
- School of Materials Science and Engineering
- Tongji University
- Shanghai 201804
- China
| | - Ming Jin
- Institute of Functional Polymers
- School of Materials Science and Engineering
- Tongji University
- Shanghai 201804
- China
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26
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Abstract
Dendritic molecules are an exciting research topic because of their highly branched architecture, multiple functional groups on the periphery, and very pertinent features for various applications. Self-assembling dendritic amphiphiles have produced different nanostructures with unique morphologies and properties. Since their self-assembly in water is greatly relevant for biomedical applications, researchers have been looking for a way to rationally design dendritic amphiphiles for the last few decades. We review here some recent developments from investigations on the self-assembly of dendritic amphiphiles into various nanostructures in water on the molecular level. The main content of the review is divided into sections according to the different nanostructure morphologies resulting from the dendritic amphiphiles' self-assembly. Finally, we conclude with some remarks that highlight the self-assembling features of these dendritic amphiphiles.
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Affiliation(s)
- Bala N S Thota
- Institute of Chemistry and Biochemistry, Freie Universität Berlin , Berlin 14195, Germany
| | - Leonhard H Urner
- Institute of Chemistry and Biochemistry, Freie Universität Berlin , Berlin 14195, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin , Berlin 14195, Germany
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27
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Yu Y, Frey H. Controllable Nonspecific Protein Adsorption by Charged Hyperbranched Polyglycerol Thin Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:13101-13106. [PMID: 26562213 DOI: 10.1021/acs.langmuir.5b03243] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Antifouling thin films derived from charged hyperbranched polyglycerol (hbPG) layers were fabricated and evaluated. The anionic hbPG (a-hbPG) monolayers and cationic hbPG/anionic hbPG (c/a-hbPG) bilayers were adsorbed on the underlying self-assembled monolayers (SAMs) of cysteamine and 3-mercaptopropionic acid (3-MPA) by electrostatic interaction, respectively, and their procession was monitored by surface plasmon resonance spectroscopy (SPR). The adsorption of bovine serum albumin (BSA) and fibrinogen on the premade a-hbPG and c/a-hbPG thin films was measured and the capability of these thin films to resist nonspecific protein adsorption was evaluated by SPR as well. It is observed that the c/a-hbPG bilayer films possessed good antifouling properties. With c/a-hbPG bilayers consisting of higher molecular weight a-hbPG, the adsorption of BSA and fibrinogen were as low as 0.015 ng/mm(-2) and 0.0076 ng/mm(-2), respectively, comparable to the traditionally ultralow antifouling surfaces (<0.05 ng/mm(-2) of nonspecific protein adsorption). This work proved that the charged hbPG thin films can strongly reduce the nonspecific protein adsorption and have the promise for the antifouling coatings with improved performance.
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Affiliation(s)
- Yaming Yu
- College of Materials Science and Engineering, Huaqiao University , 361021, Xiamen, China
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128, Mainz, Germany
| | - Holger Frey
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128, Mainz, Germany
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28
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Lukowiak MC, Thota BN, Haag R. Dendritic core–shell systems as soft drug delivery nanocarriers. Biotechnol Adv 2015; 33:1327-41. [DOI: 10.1016/j.biotechadv.2015.03.014] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 03/19/2015] [Accepted: 03/22/2015] [Indexed: 12/29/2022]
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29
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Zheng Q, Zhou X, Li H, Ma D, Xue W. Complex aggregates formed with a hyperbranched polyglycerol derivative for drug delivery. J Appl Polym Sci 2015. [DOI: 10.1002/app.42895] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Qianqian Zheng
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Xiaoyan Zhou
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Hui Li
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Dong Ma
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
| | - Wei Xue
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering; Jinan University; Guangzhou 510632 China
- Institute of Life and Health Engineering, Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes; Jinan University; Guangzhou 510632 China
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30
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Liu YY, Lan S, Xiao LQ. Synthesis and Characterization of PNIPAm Core Cross-Linked Star Polymers and Their Functionalization with Cyclodextrin. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201400538] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yu-Yang Liu
- The Key Laboratory of Space Applied Physics and Chemistry; Ministry of Education and Key Laboratory of Macromolecular Science and Technology of Shaanxi Province; Department of Applied Chemistry; Northwestern Polytechnical University; Xi'an 710072 P.R. China
| | - Song Lan
- The Key Laboratory of Space Applied Physics and Chemistry; Ministry of Education and Key Laboratory of Macromolecular Science and Technology of Shaanxi Province; Department of Applied Chemistry; Northwestern Polytechnical University; Xi'an 710072 P.R. China
| | - Li-Qun Xiao
- The Key Laboratory of Space Applied Physics and Chemistry; Ministry of Education and Key Laboratory of Macromolecular Science and Technology of Shaanxi Province; Department of Applied Chemistry; Northwestern Polytechnical University; Xi'an 710072 P.R. China
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31
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Ejaz M, Alb AM, Kosakowska KA, Grayson SM. Modular amphiphilic copolymer-grafted nanoparticles: “nanoparticle micelle” behavior enhances utility as dispersants. Polym Chem 2015. [DOI: 10.1039/c5py01251a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Nanoparticles with amphiphilic polymer grafts exhibit increased stability as dispersants relative to traditional small molecule amphiphiles.
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Affiliation(s)
| | - Alina M. Alb
- Tulane University
- Physics and Engineering Physics Department
- New Orleans
- USA
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32
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Pan L, Ban J, Lu S, Chen G, Yang J, Luo Q, Wu L, Yu J. Improving thermal and mechanical properties of epoxy composites by using functionalized graphene. RSC Adv 2015. [DOI: 10.1039/c5ra09410k] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
A novel reduced graphene oxide/perylene bisimide-containing hyperbranched polyglycerol was successfully prepared via π–π stacking interactions. The thermal and mechanical properties of the epoxy composite were enhanced significantly.
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Affiliation(s)
- Lulu Pan
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin 541004
| | - Jianfeng Ban
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province
- College of Optoelectronic Engineering
- Shenzhen University
- Shenzhen 518060
- China
| | - Shaorong Lu
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin 541004
| | - Guoxin Chen
- Key Laboratory of Marine Materials and Related Technologies
- Zhejiang Key Laboratory of Marine Materials and Protective Technologies
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
| | - Jin Yang
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin 541004
| | - Qiyun Luo
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin 541004
| | - Linyan Wu
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin 541004
| | - Jinhong Yu
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin 541004
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33
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Kurniasih IN, Keilitz J, Haag R. Dendritic nanocarriers based on hyperbranched polymers. Chem Soc Rev 2015; 44:4145-64. [DOI: 10.1039/c4cs00333k] [Citation(s) in RCA: 150] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The use of hyperbranched polymers as an alternative to perfect dendrimers as nanocarrier systems for drugs, dyes and other guest molecules is covered. Different types of hyperbranched polymers are discussed with regard to aspects like synthesis, functionalisation and encapsulation properties but also their degradation.
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Affiliation(s)
| | - Juliane Keilitz
- Institute of Chemistry and Biochemistry
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry
- Freie Universität Berlin
- 14195 Berlin
- Germany
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34
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Zhang J, Liu K, Müllen K, Yin M. Self-assemblies of amphiphilic homopolymers: synthesis, morphology studies and biomedical applications. Chem Commun (Camb) 2015; 51:11541-55. [DOI: 10.1039/c5cc03016a] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The need for a simplified access to supramolecular assemblies with enhanced tenability has led to the development of amphiphilic homopolymers (APHPs). This review highlights recent advances and future trends in APHP design, self-assembly, and biomedical applications.
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Affiliation(s)
- Jin Zhang
- State Key Laboratory of Chemical Resource Engineering
- Key Laboratory of Carbon Fiber and Functional Polymers of Ministry of Education
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- 100029 Beijing
| | - Kelan Liu
- State Key Laboratory of Chemical Resource Engineering
- Key Laboratory of Carbon Fiber and Functional Polymers of Ministry of Education
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- 100029 Beijing
| | - Klaus Müllen
- Max-Planck-Institute for Polymer Research
- 55128 Mainz
- Germany
| | - Meizhen Yin
- State Key Laboratory of Chemical Resource Engineering
- Key Laboratory of Carbon Fiber and Functional Polymers of Ministry of Education
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- 100029 Beijing
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35
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Xu Z, Liu S, Liu H, Yang C, Kang Y, Wang M. Unimolecular micelles of amphiphilic cyclodextrin-core star-like block copolymers for anticancer drug delivery. Chem Commun (Camb) 2015; 51:15768-71. [DOI: 10.1039/c5cc02743h] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Amphiphilic star-like block copolymers form robust biocompatible unimolecular micelles that are efficient in the delivery of anticancer drugs such as doxorubicin.
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Affiliation(s)
- Zhigang Xu
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Shiying Liu
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Hui Liu
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Cangjie Yang
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Yuejun Kang
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Mingfeng Wang
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
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Abstract
The recent research progress in biological and biomedical applications of hyperbranched polymers has been summarized in this review.
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Affiliation(s)
- Dali Wang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- 200240 Shanghai
- P. R. China
| | - Tianyu Zhao
- Charles Institute of Dermatology
- School of Medicine and Medical Science
- University College Dublin
- Dublin 4
- Ireland
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- 200240 Shanghai
- P. R. China
| | - Deyue Yan
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- 200240 Shanghai
- P. R. China
| | - Wenxin Wang
- Charles Institute of Dermatology
- School of Medicine and Medical Science
- University College Dublin
- Dublin 4
- Ireland
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Zheng Y, Li S, Weng Z, Gao C. Hyperbranched polymers: advances from synthesis to applications. Chem Soc Rev 2015; 44:4091-130. [DOI: 10.1039/c4cs00528g] [Citation(s) in RCA: 498] [Impact Index Per Article: 55.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This review summarizes the advances in hyperbranched polymers from the viewpoint of structure, click synthesis and functionalization towards their applications in the last decade.
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Affiliation(s)
- Yaochen Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Sipei Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Zhulin Weng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
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Huang Y, Wang D, Zhu X, Yan D, Chen R. Synthesis and therapeutic applications of biocompatible or biodegradable hyperbranched polymers. Polym Chem 2015. [DOI: 10.1039/c5py00144g] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The recent progress in the synthesis, modifications and therapeutic applications of biocompatible or biodegradable hyperbranched polymers has been reviewed.
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Affiliation(s)
- Yu Huang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- 200240 Shanghai
- P. R. China
| | - Dali Wang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- 200240 Shanghai
- P. R. China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- 200240 Shanghai
- P. R. China
| | - Deyue Yan
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- 200240 Shanghai
- P. R. China
| | - Rongjun Chen
- Department of Chemical Engineering
- Imperial College London
- London SW7 2AZ
- UK
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Steinschulte AA, Schulte B, Rütten S, Eckert T, Okuda J, Möller M, Schneider S, Borisov OV, Plamper FA. Effects of architecture on the stability of thermosensitive unimolecular micelles. Phys Chem Chem Phys 2014; 16:4917-32. [PMID: 24477663 DOI: 10.1039/c3cp54707h] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The influence of architecture on polymer interactions is investigated and differences between branched and linear copolymers are found. A comprehensive picture is drawn with the help of a fluorescence approach (using pyrene and 4HP as probe molecules) together with IR or NMR spectroscopy and X-ray/light scattering measurements. Five key aspects are addressed: (1) synergistic intramolecular complexation within miktoarm stars. The proximity of thermoresponsive poly(propylene oxide) (PPO) and poly(dimethylaminoethyl methacrylate) (PDMAEMA) within a miktoarm star leads to complexation between these weakly interacting partners. Consequently, the original properties of the constituents are lost, showing hydrophobic domains even at low temperatures, at which all homopolymers are water soluble. (2) Unimolecular micelles for miktoarm stars. The star does not exhibit intermolecular self-assembly in a large temperature range, showing unimers up to 55 °C. This behavior was traced back to a reduced interfacial tension between the PPO-PDMAEMA complex and water (PDMAEMA acts as a "microsurfactant"). (3) Unimolecular to multimolecular micelle transition for stars. The otherwise stable unimolecular micelles self-assemble above 55 °C. This aggregation is not driven by PPO segregation, but by collapse of residual PDMAEMA. This leads to micrometer-sized multilamellar vesicles stabilized by poly(ethylene oxide) (PEO). (4) Prevention of pronounced complexation within diblock copolymers. In contrast to the star copolymers, PPO and PDMAEMA adapt rather their homopolymer behavior within the diblock copolymers. Then they show their immanent LCST properties, as PDMAEMA turns insoluble at elevated temperatures, whereas PPO becomes hydrophobic below room temperature. (5) Two-step micellization for diblock copolymers. Upon heating of linear copolymers, the dehydration of PPO is followed by self-assembly into spherical micelles. An intermediate prevalence of unimolecular micelles is revealed in a small temperature window between PPO collapse and self-assembly of PEO-b-PPO. Also for PPO-b-PDMAEMA, PPO segregation prevails after initial weak complexation, leading to micelles with a PPO core. Considerable amounts of water are entrapped within the collapsed PDMAEMA domains above 55 °C (skin effect), preventing PPO-PDMAEMA complexation within precipitating PPO-b-PDMAEMA. Further, collapsed PDMAEMA is rather polar as sensed by pyrene and 4HP. In summary, advanced macromolecular architectures can lead to an unprecedented intramolecular self-assembly behavior, where internal complexation prevents intermolecular aggregation.
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Pocoví-Martínez S, Kemmer-Jonas U, Pérez-Prieto J, Frey H, Stiriba SE. Supramolecular Antioxidant Assemblies of Hyperbranched Polyglycerols and Phenols. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400372] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Salvador Pocoví-Martínez
- Instituto de Ciencia Molecular (ICMOL); Universidad de Valencia; Catedrático José Beltrán, 2 46980 Paterna Valencia Spain
| | - Ulrike Kemmer-Jonas
- Institut für Organische Chemie; Johannes Gutenberg-Universität Mainz; Duesbergweg, 10-14 55099 Mainz Germany
| | - Julia Pérez-Prieto
- Instituto de Ciencia Molecular (ICMOL); Universidad de Valencia; Catedrático José Beltrán, 2 46980 Paterna Valencia Spain
| | - Holger Frey
- Institut für Organische Chemie; Johannes Gutenberg-Universität Mainz; Duesbergweg, 10-14 55099 Mainz Germany
| | - Salah-Eddine Stiriba
- Instituto de Ciencia Molecular (ICMOL); Universidad de Valencia; Catedrático José Beltrán, 2 46980 Paterna Valencia Spain
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Facile Williamson etherification of hyperbranched polyglycerol and subtle core-dependent supramolecular guest selection of the resulting molecular nanocapsule. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2014.03.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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42
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Tripp S, Appelhans D, Striegler C, Voit B. Oligosaccharide Shells as a Decisive Factor for Moderate and Strong Ionic Interactions of Dendritic Poly(ethylene imine) Scaffolds under Shear Forces. Chemistry 2014; 20:8314-9. [DOI: 10.1002/chem.201402147] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Indexed: 12/16/2022]
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43
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Abstract
In this article, we reviewed the interactions between dendrimers and surfactants with particular focus on the interaction mechanisms and physicochemical properties of the yielding dendrimer-surfactant aggregates. In order to provide insight into the behavior of dendrimers in biological systems, the interactions of dendrimers with bio-surfactants such as phospholipids in bulk solutions, in solid-supported bilayers and at the interface of phases or solid-states were discussed. Applications of the dendrimer-surfactant aggregates as templates to guide the synthesis of nanoparticles and in drug or gene delivery were also mentioned.
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Affiliation(s)
- Yiyun Cheng
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, People's Republic of China.
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44
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Paclitaxel-hyaluronan hydrosoluble bioconjugate: Mechanism of action in human bladder cancer cell lines. Urol Oncol 2013; 31:1261-9. [DOI: 10.1016/j.urolonc.2012.01.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2011] [Revised: 01/06/2012] [Accepted: 01/07/2012] [Indexed: 11/19/2022]
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45
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Kurniasih IN, Liang H, Kumar S, Mohr A, Sharma SK, Rabe JP, Haag R. A bifunctional nanocarrier based on amphiphilic hyperbranched polyglycerol derivatives. J Mater Chem B 2013; 1:3569-3577. [PMID: 32261172 DOI: 10.1039/c3tb20366b] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We here report on the synthesis of a bifunctional nanocarrier system based on amphiphilic hyperbranched polyglycerol (hPG), which is modified by introducing hydrophobic aromatic groups to the core and retaining hydrophilic groups in the shell. "Selective chemical differentiation" and chemo-enzymatic reaction strategies were used to synthesize this new core-shell type nanocarrier. The system shows an innovative bifunctional carrier capacity with both polymeric and unimolecular micelle-like transport properties. Hydrophobic guest molecules such as pyrene were encapsulated into the hydrophobic core of modified hPG via hydrophobic interactions as well as π-π stacking, analogous to a unimolecular micelle system. A second guest molecule, which has a high affinity to the shell like nile red, was solubilized in the outer shell of the host molecule, thus connecting the nanocarrier molecules to form aggregates. This model is confirmed by UV-Vis, fluorescence, atomic force microscopy, and dynamic light scattering, as well as release studies triggered by pH-changes and enzymes. Encapsulated guest molecules, respectively in the core and in the shell, present different controlled release profiles. The bifunctional nanocarrier system is a promising candidate for simultaneous delivery of different hydrophobic drugs for a combination therapy, e.g., in tumor treatment.
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Affiliation(s)
- Indah N Kurniasih
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany.
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46
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Zhang L, Feng Y, Tian H, Zhao M, Khan M, Guo J. Amphiphilic depsipeptide-based block copolymers as nanocarriers for controlled release of ibuprofen with doxorubicin. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26713] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Li Zhang
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92 Tianjin 300072 People's Republic of China
| | - Yakai Feng
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92 Tianjin 300072 People's Republic of China
- Tianjin University-Helmholtz-Zentrum Geesthacht; Joint Laboratory for Biomaterials and Regenerative Medicine; Weijin Road 92 Tianjin 300072 People's Republic of China
- Key Laboratory of Systems Bioengineering, Ministry of Education; Tianjin University; Weijin Road 92 Tianjin 300072 People's Republic of China
| | - Hong Tian
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92 Tianjin 300072 People's Republic of China
| | - Miao Zhao
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92 Tianjin 300072 People's Republic of China
| | - Musammir Khan
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92 Tianjin 300072 People's Republic of China
| | - Jintang Guo
- School of Chemical Engineering and Technology; Tianjin University; Weijin Road 92 Tianjin 300072 People's Republic of China
- Tianjin University-Helmholtz-Zentrum Geesthacht; Joint Laboratory for Biomaterials and Regenerative Medicine; Weijin Road 92 Tianjin 300072 People's Republic of China
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47
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ul-haq MI, Shenoi RA, Brooks DE, Kizhakkedathu JN. Solvent-assisted anionic ring opening polymerization of glycidol: Toward medium and high molecular weight hyperbranched polyglycerols. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26649] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Muhammad Imran ul-haq
- Department of Pathology and Laboratory Medicine; Centre for Blood Research; The University of British Columbia, Life Sciences Centre, 2350 Health Sciences Mall; Vancouver; BC; V6T 1Z3; Canada
| | - Rajesh A. Shenoi
- Department of Pathology and Laboratory Medicine; Centre for Blood Research; The University of British Columbia, Life Sciences Centre, 2350 Health Sciences Mall; Vancouver; BC; V6T 1Z3; Canada
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Gupta S, Schade B, Kumar S, Böttcher C, Sharma SK, Haag R. Non-ionic dendronized multiamphiphilic polymers as nanocarriers for biomedical applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:894-904. [PMID: 23225638 DOI: 10.1002/smll.201201253] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Revised: 09/03/2012] [Indexed: 06/01/2023]
Abstract
A new class of non-ionic dendronized multiamphiphilic polymers is prepared from a biodegradable (AB)n-type diblock polymer synthesized from 2-azido-1,3-propanediol (azido glycerol) and polyethylene glycol (PEG)-600 diethylester using Novozym-435 (Candida antarctica lipase) as a biocatalyst, following a well-established biocatalytic route. These polymers are functionalized with dendritic polyglycerols (G1 and G2) and octadecyl chains in different functionalization levels via click chemistry to generate dendronized multiamphiphilic polymers. Surface tension measurements and dynamic light scattering studies reveal that all of the multiamphiphilic polymers spontaneously self-assemble in aqueous solution. Cryogenic transmission electron microscopy further proves the formation of multiamphiphiles towards monodisperse spherical micelles of about 7-9 nm in diameter. The evidence from UV-vis and fluorescence spectroscopy suggests the effective solubilization of hydrophobic guests like pyrene and 1-anilinonaphthalene-8-sulfonic acid within the hydrophobic core of the micelles. These results demonstrate the potential of these dendronized multiamphiphilic polymers for the development of prospective drug delivery systems for the solubilization of poorly water soluble drugs.
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Affiliation(s)
- Shilpi Gupta
- Institut für Chemie und Biochemie, Freie Universität Berlin, Berlin, Germany
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Cai Y, Liu YY. Amphiphilic Unimolecular Nanoparticles Based on a Hyperbranched Polyacrylate Core and a PNIPAm Shell: Synthesis via ATRP and Properties. MACROMOL CHEM PHYS 2013. [DOI: 10.1002/macp.201200598] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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50
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Cai T, Li M, Neoh KG, Kang ET. Surface-functionalizable membranes of polycaprolactone-click-hyperbranched polyglycerol copolymers from combined atom transfer radical polymerization, ring-opening polymerization and click chemistry. J Mater Chem B 2013; 1:1304-1315. [PMID: 32260804 DOI: 10.1039/c2tb00273f] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Hyperbranched polyglycerols containing terminal alkyne and alkyl bromide groups (CH[triple bond, length as m-dash]C-HPG-Br) were first synthesized via propargyl alcohol-initiated ring-opening polymerization (ROP) of glycidol, followed by reaction of 2-bromoisobutyryl bromide (BIBB) with the hydroxyl groups to introduce the atom transfer radical polymerization (ATRP) initiators on HPG. Hydrophobic azido-terminated poly(ε-caprolactone) (PCL-N3), prepared a priori via 2-azidoethanol-initiated ROP of ε-caprolactone, was then coupled to the CH[triple bond, length as m-dash]C-HPG-Br polymer through a Cu(i)-catalyzed alkyne-azide click reaction. The resultant linear-hyperbranched PCL-click-HPG copolymers were cast by phase inversion in an aqueous medium into microporous membranes of well-defined and uniform pores. Not only could the HPG contents in the PCL-click-HPG copolymers be used to control the pore size and porosity of the resulting membranes, but also the alkyl halide chain-ends of HPG allowed the subsequent functionalization of membrane and pore surfaces. The PCL-click-HPG-b-PMPC membrane was prepared via surface-initiated ATRP of zwitterionic 2-methacryloyloxyethyl phosphorylcholine (MPC) from the PCL-click-HPG membrane and pore surfaces. The PCL-click-HPG-b-PMPC membranes exhibit good antifouling and antibacterial adhesion properties with negligible cytotoxicity effects, making the membranes potentially useful for biomaterials and biomedical applications.
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Affiliation(s)
- Tao Cai
- NUS Graduate School for Integrative Science and Engineering, National University of Singapore, Kent Ridge, Singapore 117576.
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