1
|
Hao D, Guo X, Zhu X, Wei C, Gao L, Wang X. Progress in synthesis, modification, characterization and applications of hyperbranched polyphosphate polyesters. Des Monomers Polym 2024; 27:62-86. [PMID: 39077753 PMCID: PMC11285245 DOI: 10.1080/15685551.2024.2376842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 07/02/2024] [Indexed: 07/31/2024] Open
Abstract
Hyperbranched polyphosphate polyesters (HPPs) as a special class of hyperbranched polymers have attracted increased interest and have been intensively studied, because of peculiar structures, excellent biocompatibility, flexibility in physicochemical properties, biodegradability, water soluble, thermal stability, and mechanical properties. HPPs can be divided into phosphates as monomers and phosphates as end groups. In this article, the classification, general synthesis, modifications, and applications of HPP are reviewed. In addition, recent developments in the application of HPP are described, such as modified or functionalized by end capping and hypergrafting to improve the performances in polymer blends, coatings, flame retardant, leather. Furthermore, the modifications and application of HPPs in biomedical materials, such as drug delivery and bone regeneration were discussed. In summary, the hyperbranched polymer enlarges its application range and improves its application performance compared with conventional polymer. In the future, more new HPPs composite materials will be developed through hyperbranched technique. This review of HPPs will provide useful theoretical basis and technical support for the development of new hyperbranched polymer material.
Collapse
Affiliation(s)
- Dongyan Hao
- School of Chemical Engineering and Modern Materials, Shangluo University, Shangluo, Shaanxi, China
| | - Xiaoxiao Guo
- BioHong Corporation of Xi′an, Product development department, Xi′an, Shaanxi, China
| | - Xing Zhu
- College of Bioresources Chemical and Material Engineering, Shaanxi University of Science and Technology, Xi′an, Shaanxi, China
| | - Chao Wei
- College of Bioresources Chemical and Material Engineering, Shaanxi University of Science and Technology, Xi′an, Shaanxi, China
| | - Lanchang Gao
- School of Chemical Engineering and Modern Materials, Shangluo University, Shangluo, Shaanxi, China
| | - Xuechuan Wang
- College of Bioresources Chemical and Material Engineering, Shaanxi University of Science and Technology, Xi′an, Shaanxi, China
| |
Collapse
|
2
|
Thermoresponsive Polyphosphoester via Polycondensation Reactions: Synthesis, Characterization, and Self-Assembly. Molecules 2022; 27:molecules27186006. [PMID: 36144742 PMCID: PMC9505623 DOI: 10.3390/molecules27186006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/06/2022] [Accepted: 09/09/2022] [Indexed: 11/24/2022] Open
Abstract
Using a novel strategy, amphiphilic polyphosphoesters based on poly(oxyethylene H-phosphonate)s (POEHP) with different poly(ethylene glycol) segment lengths and aliphatic alcohols with various alkyl chain lengths were synthesized using polycondensation reactions. They were characterized by 1H NMR, 13C {H} NMR 31P NMR, IR, and size exclusion chromatography (SEC). The effects of the polymer structure on micelle formation and stability, micelle size, and critical micelle temperature were studied via dynamic light scattering (DLS). The hydrophilic/hydrophobic balance of these polymers can be controlled by changing the chain lengths of hydrophilic PEG and hydrophobic alcohols. A solubilizing test, using Sudan III, revealed that hydrophobic substances can be incorporated inside the hydrophobic core of polymer associates. Loading capacity depends on the length of alkyl side chains. The results obtained indicate that these structurally flexible polymers have the potential as drug carriers.
Collapse
|
3
|
Abdul Samat A, Abdul Hamid ZA, Jaafar M, Yahaya BH. Mechanical Properties and In Vitro Evaluation of Thermoplastic Polyurethane and Polylactic Acid Blend for Fabrication of 3D Filaments for Tracheal Tissue Engineering. Polymers (Basel) 2021; 13:polym13183087. [PMID: 34577988 PMCID: PMC8472949 DOI: 10.3390/polym13183087] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 09/06/2021] [Accepted: 09/07/2021] [Indexed: 12/18/2022] Open
Abstract
Surgical reconstruction of extensive tracheal lesions is challenging. It requires a mechanically stable, biocompatible, and nontoxic material that gradually degrades. One of the possible solutions for overcoming the limitations of tracheal transplantation is a three-dimensional (3D) printed tracheal scaffold made of polymers. Polymer blending is one of the methods used to produce material for a trachea scaffold with tailored characteristics. The purpose of this study is to evaluate the mechanical and in vitro properties of a thermoplastic polyurethane (TPU) and polylactic acid (PLA) blend as a potential material for 3D printed tracheal scaffolds. Both materials were melt-blended using a single screw extruder. The morphologies (as well as the mechanical and thermal characteristics) were determined via scanning electron microscopy (SEM), Fourier Transform Infrared (FTIR) spectroscopy, tensile test, and Differential Scanning calorimetry (DSC). The samples were also evaluated for their water absorption, in vitro biodegradability, and biocompatibility. It is demonstrated that, despite being not miscible, TPU and PLA are biocompatible, and their promising properties are suitable for future applications in tracheal tissue engineering.
Collapse
Affiliation(s)
- Asmak Abdul Samat
- Lung Stem Cell and Gene Therapy Group, Regenerative Medicine Cluster, Advanced Medical and Dental Institute (IPPT), Sains@Bertam, Universiti Sains Malaysia, Kepala Batas 13200, Malaysia;
- Fundamental Dental and Medical Sciences, Kulliyyah of Dentistry, International Islamic University Malaysia, Kuantan 25200, Malaysia
| | - Zuratul Ain Abdul Hamid
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal 14300, Malaysia; (Z.A.A.H.); (M.J.)
| | - Mariatti Jaafar
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal 14300, Malaysia; (Z.A.A.H.); (M.J.)
| | - Badrul Hisham Yahaya
- Lung Stem Cell and Gene Therapy Group, Regenerative Medicine Cluster, Advanced Medical and Dental Institute (IPPT), Sains@Bertam, Universiti Sains Malaysia, Kepala Batas 13200, Malaysia;
- Correspondence:
| |
Collapse
|
4
|
Pelosi C, Tinè MR, Wurm FR. Main-chain water-soluble polyphosphoesters: Multi-functional polymers as degradable PEG-alternatives for biomedical applications. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110079] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
5
|
Cao ZT, Gan LQ, Jiang W, Wang JL, Zhang HB, Zhang Y, Wang Y, Yang X, Xiong M, Wang J. Protein Binding Affinity of Polymeric Nanoparticles as a Direct Indicator of Their Pharmacokinetics. ACS NANO 2020; 14:3563-3575. [PMID: 32053346 DOI: 10.1021/acsnano.9b10015] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Polymeric nanoparticles (NPs) are an important category of drug delivery systems, and their in vivo fate is closely associated with delivery efficacy. Analysis of the protein corona on the surface of NPs to understand the in vivo fate of different NPs has been shown to be reliable but complicated and time-consuming. In this work, we establish a simple approach for predicting the in vivo fate of polymeric NPs. We prepared a series of poly(ethylene glycol)-block-poly(d,l-lactide) (PEG-b-PLA) NPs with different protein binding behaviors by adjusting their PEG densities, which were determined by analyzing the serum protein adsorption. We further determined the protein binding affinity, denoted as the equilibrium association constant (KA), to correlate with in vivo fate of NPs. The in vivo fate, including blood clearance and Kupffer cell uptake, was studied, and the maximum concentration (Cmax), the area under the plasma concentration-time curve (AUC), and the mean residence time (MRT) were negatively linearly dependent, while Kupffer cell uptake was positively linearly dependent on KA. Subsequently, we verified the reliability of the approach for in vivo fate prediction using poly(methoxyethyl ethylene phosphate)-block-poly(d,l-lactide) (PEEP-b-PLA) and poly(vinylpyrrolidone)-block-poly(d,l-lactide) (PVP-b-PLA) NPs, and the linear relationship between the KA value and their PK parameters further suggests that the protein binding affinity of polymeric NPs can be a direct indicator of their pharmacokinetics.
Collapse
Affiliation(s)
- Zhi-Ting Cao
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P.R. China
| | - Li-Qin Gan
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, P.R. China
| | - Wei Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, P.R. China
| | - Ji-Long Wang
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P.R. China
| | - Hou-Bing Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, P.R. China
| | - Yue Zhang
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P.R. China
| | - Yucai Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, P.R. China
| | - Xianzhu Yang
- Institutes for Life Sciences and School of Medicine, South China University of Technology, Guangzhou 510006, P.R. China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, P.R. China
| | - Menghua Xiong
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P.R. China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou 510006, P.R. China
| | - Jun Wang
- Guangzhou First People's Hospital, School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 510006, P.R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, P.R. China
- Key Laboratory of Biomedical Engineering of Guangdong Province and Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, P.R. China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510005, P.R. China
| |
Collapse
|
6
|
Yeniay E, Öcal L, Altun E, Giray B, Nuzhet Oktar F, Talat Inan A, Ekren N, Kilic O, Gunduz O. Nanofibrous wound dressing material by electrospinning method. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2018.1525718] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Eda Yeniay
- Advanced Nanomaterials Research Laboratory, Department of Metallurgical and Materials Engineering, Marmara University, Istanbul, Turkey
- Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey
| | - Leyla Öcal
- Advanced Nanomaterials Research Laboratory, Department of Metallurgical and Materials Engineering, Marmara University, Istanbul, Turkey
- Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey
| | - Esra Altun
- Advanced Nanomaterials Research Laboratory, Department of Metallurgical and Materials Engineering, Marmara University, Istanbul, Turkey
- Department of Metallurgical and Materials Engineering, Master of Science, Institute of Pure and Applied Sciences, Marmara University, Istanbul, Turkey
| | - Betul Giray
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Medipol University, Istanbul, Turkey
| | - Faik Nuzhet Oktar
- Advanced Nanomaterials Research Laboratory, Department of Metallurgical and Materials Engineering, Marmara University, Istanbul, Turkey
- Department of Bioengineer, Faculty of Engineer, Marmara University, Istanbul, Turkey
| | - Ahmet Talat Inan
- Advanced Nanomaterials Research Laboratory, Department of Metallurgical and Materials Engineering, Marmara University, Istanbul, Turkey
- Department of Mechanical Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey
| | - Nazmi Ekren
- Advanced Nanomaterials Research Laboratory, Department of Metallurgical and Materials Engineering, Marmara University, Istanbul, Turkey
- Department of Electrical-Electronics Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey
| | - Osman Kilic
- Advanced Nanomaterials Research Laboratory, Department of Metallurgical and Materials Engineering, Marmara University, Istanbul, Turkey
- Department of Electrical and Electronics Engineering, Faculty of Engineering, Marmara University, Istanbul, Turkey
| | - Oguzhan Gunduz
- Advanced Nanomaterials Research Laboratory, Department of Metallurgical and Materials Engineering, Marmara University, Istanbul, Turkey
- Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey
| |
Collapse
|
7
|
Borguet Y, Khan S, Noel A, Gunsten SP, Brody SL, Elsabahy M, Wooley KL. Development of Fully Degradable Phosphonium-Functionalized Amphiphilic Diblock Copolymers for Nucleic Acids Delivery. Biomacromolecules 2018; 19:1212-1222. [PMID: 29526096 PMCID: PMC5894060 DOI: 10.1021/acs.biomac.8b00069] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 02/23/2018] [Indexed: 11/29/2022]
Abstract
To expand the range of functional polymer materials to include fully hydrolytically degradable systems that bear bioinspired phosphorus-containing linkages both along the backbone and as cationic side chain moieties for packaging and delivery of nucleic acids, phosphonium-functionalized polyphosphoester- block-poly(l-lactide) copolymers of various compositions were synthesized, fully characterized, and their self-assembly into nanoparticles were studied. First, an alkyne-functionalized polyphosphoester- block-poly(l-lactide) copolymer was synthesized via a one pot sequential ring opening polymerization of an alkyne-functionalized phospholane monomer, followed by the addition of l-lactide to grow the second block. Second, the alkynyl side groups of the polyphosphoester block were functionalized via photoinitiated thiol-yne radical addition of a phosphonium-functionalized free thiol. The polymers of varying phosphonium substitution degrees were self-assembled in aqueous buffers to afford formation of well-defined core-shell assemblies with an average size ranging between 30 and 50 nm, as determined by dynamic light scattering. Intracellular delivery of the nanoparticles and their effects on cell viability and capability at enhancing transfection efficiency of nucleic acids (e.g., siRNA) were investigated. Cell viability assays demonstrated limited toxicity of the assembly to RAW 264.7 mouse macrophages, except at high polymer concentrations, where the polymer of high degree of phosphonium functionalization induced relatively higher cytotoxicity. Transfection efficiency was strongly affected by the phosphonium-to-phosphate (P+/P-) ratios of the polymers and siRNA, respectively. The AllStars Hs Cell Death siRNA complexed to the various copolymers at a P+/P- ratio of 10:1 induced comparable cell death to Lipofectamine. These fully degradable nanoparticles might provide biocompatible nanocarriers for therapeutic nucleic acid delivery.
Collapse
Affiliation(s)
- Yannick
P. Borguet
- Departments
of Chemistry, Chemical Engineering, and Materials Science & Engineering,
and the Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
| | - Sarosh Khan
- Departments
of Chemistry, Chemical Engineering, and Materials Science & Engineering,
and the Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
| | - Amandine Noel
- Departments
of Chemistry, Chemical Engineering, and Materials Science & Engineering,
and the Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
| | - Sean P. Gunsten
- Department
of Medicine, Washington University, St. Louis, Missouri 63110, United States
| | - Steven L. Brody
- Department
of Medicine, Washington University, St. Louis, Missouri 63110, United States
- Department
of Radiology, Washington University, St. Louis, Missouri 63110, United States
| | - Mahmoud Elsabahy
- Departments
of Chemistry, Chemical Engineering, and Materials Science & Engineering,
and the Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
- Department
of Pharmaceutics, Faculty of Pharmacy, Assiut International Center
of Nanomedicine, Alrajhy Liver Hospital, Assiut University, Assiut 71515, Egypt
| | - Karen L. Wooley
- Departments
of Chemistry, Chemical Engineering, and Materials Science & Engineering,
and the Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
| |
Collapse
|
8
|
Zhao G, Wei G, Zhu W, Ke F, Guang S, Zhang F, Xu H. Controllable preparation and near infrared optical limiting properties of fluorene-containing polyacetylenes. J Appl Polym Sci 2018. [DOI: 10.1002/app.46100] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Gang Zhao
- College of Material Science and Engineering & State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; Donghua University; Shanghai 201620 China
| | - Gang Wei
- College of Material Science and Engineering & State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; Donghua University; Shanghai 201620 China
| | - Weiju Zhu
- School of Chemistry and Chemical Engineering & The Key Laboratory of Environment-Friendly Polymer Materials of Anhui Province; Anhui University; Hefei 230039 China
| | - Fuyou Ke
- College of Material Science and Engineering & State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; Donghua University; Shanghai 201620 China
| | - Shanyi Guang
- College of Chemistry and Bioengineering; Donghua University; Shanghai 201620 China
| | - Fayin Zhang
- College of Material Science and Engineering & State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; Donghua University; Shanghai 201620 China
| | - Hongyao Xu
- College of Material Science and Engineering & State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; Donghua University; Shanghai 201620 China
| |
Collapse
|
9
|
Bauer KN, Tee HT, Velencoso MM, Wurm FR. Main-chain poly(phosphoester)s: History, syntheses, degradation, bio-and flame-retardant applications. Prog Polym Sci 2017. [DOI: 10.1016/j.progpolymsci.2017.05.004] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
10
|
Suo A, Qian J, Xu M, Xu W, Zhang Y, Yao Y. Folate-decorated PEGylated triblock copolymer as a pH/reduction dual-responsive nanovehicle for targeted intracellular co-delivery of doxorubicin and Bcl-2 siRNA. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:659-672. [PMID: 28482576 DOI: 10.1016/j.msec.2017.03.124] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 12/19/2016] [Accepted: 03/16/2017] [Indexed: 12/21/2022]
Abstract
Co-delivery of chemotherapeutic drug and small interfering RNA (siRNA) within a single nanovehicle has emerged as a promising combination therapy approach to treating cancers because of their synergistic effect. Nanocarrier delivery systems with low cytotoxicity and high efficiency are needed for such a purpose. In this study, a novel folate-conjugated PEGylated cationic triblock copolymer, poly(acrylhydrazine)-block-poly(3-dimethylaminopropyl methacrylamide)-block-poly(acrylhydrazine) (PAH-b-PDMAPMA-b-PAH), was synthesized and evaluated as a stimuli-sensitive vehicle for the targeted co-delivery of doxorubicin (DOX) and Bcl-2 siRNA into breast cancer MCF-7 cells. The synthetic process of the PEGylated triblock copolymer involved sequential reversible addition-fragmentation chain transfer polymerization, PEGylation and removal of tert-butoxy carbamate protecting groups. Folate-conjugated and/or -unconjugated poly(ethylene glycol) segments were grafted onto PAH-b-PDMAPMA-b-PAH via a reduction-sensitive disulfide linkage. The synthetic polymers were characterized by 1H NMR and gel permeation chromatography. The PEGylated triblock copolymer could chemically conjugate DOX onto PAH blocks via pH-responsive hydrazone bonds and simultaneously complex negatively charged Bcl-2 siRNA with cationic PDMAPMA blocks through electrostatic interactions at N/P ratios≥32:1 to form multifunctional nanomicelleplexes. The nanomicelleplexes exhibited spherical shape, possessed a positively charged surface with a zeta potential of +22.5mV and had a desirable and uniform particle size of 187nm. In vitro release studies revealed that the nanomicelleplexes could release DOX and Bcl-2 siRNA in a reduction and pH dual-sensitive manner and the payload release was significantly enhanced in a reductive acidic environment mimicking the endosomes/lysosomes of cancer cells compared to under physiology conditions. Furthermore, the release of both DOX and siRNA was found to follow Higuchi kinetic model. Confocal laser scanning microscopy, flow cytometry and MTT analyses confirmed that, compared with folate-undecorated nanomicelleplexes, folate-decorated nanomicelleplexes could more effectively co-deliver DOX and Bcl-2 siRNA into MCF-7 cells and showed a stronger cell-killing effect. The pristine PEGylated triblock copolymer exhibited good cytocompatibility. Moreover, co-delivery of DOX and Bcl-2 siRNA achieved a significant synergistic antitumor efficacy. These findings suggested that the folate-decorated PEGylated cationic triblock copolymer might be a promising vehicle for targeted intracellular co-delivery of DOX and siRNA in MCF-7 cells, representing a potential clinical combination therapy for breast cancer treatment.
Collapse
Affiliation(s)
- Aili Suo
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China.
| | - Junmin Qian
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Minghui Xu
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Weijun Xu
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yaping Zhang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yu Yao
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| |
Collapse
|
11
|
Chen Q, Mangadlao JD, Wallat J, De Leon A, Pokorski JK, Advincula RC. 3D Printing Biocompatible Polyurethane/Poly(lactic acid)/Graphene Oxide Nanocomposites: Anisotropic Properties. ACS APPLIED MATERIALS & INTERFACES 2017; 9:4015-4023. [PMID: 28026926 DOI: 10.1021/acsami.6b11793] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Blending thermoplastic polyurethane (TPU) with poly(lactic acid) (PLA) is a proven method to achieve a much more mechanically robust material, whereas the addition of graphene oxide (GO) is increasingly applied in polymer nanocomposites to tailor further their properties. On the other hand, additive manufacturing has high flexibility of structure design which can significantly expand the application of materials in many fields. This study demonstrates the fused deposition modeling (FDM) 3D printing of TPU/PLA/GO nanocomposites and its potential application as biocompatible materials. Nanocomposites are prepared by solvent-based mixing process and extruded into filaments for FDM printing. The addition of GO largely enhanced the mechanical property and thermal stability of the nanocomposites. Interestingly, we found that the mechanical response is highly dependent on printing orientation. Furthermore, the 3D printed nanocomposites exhibit good biocompatibility with NIH3T3 cells, indicating promise as biomaterials scaffold for tissue engineering applications.
Collapse
Affiliation(s)
- Qiyi Chen
- Department of Macromolecular Science and Engineering, Case Western Reserve University , Cleveland, Ohio 44106, United States
| | - Joey Dacula Mangadlao
- Department of Macromolecular Science and Engineering, Case Western Reserve University , Cleveland, Ohio 44106, United States
| | - Jaqueline Wallat
- Department of Macromolecular Science and Engineering, Case Western Reserve University , Cleveland, Ohio 44106, United States
| | - Al De Leon
- Department of Macromolecular Science and Engineering, Case Western Reserve University , Cleveland, Ohio 44106, United States
| | - Jonathan K Pokorski
- Department of Macromolecular Science and Engineering, Case Western Reserve University , Cleveland, Ohio 44106, United States
| | - Rigoberto C Advincula
- Department of Macromolecular Science and Engineering, Case Western Reserve University , Cleveland, Ohio 44106, United States
| |
Collapse
|
12
|
Lai WF, He ZD. Design and fabrication of hydrogel-based nanoparticulate systems for in vivo drug delivery. J Control Release 2016; 243:269-282. [DOI: 10.1016/j.jconrel.2016.10.013] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 10/12/2016] [Accepted: 10/12/2016] [Indexed: 12/27/2022]
|
13
|
Gao C, Wu J, Zhou H, Qu Y, Li B, Zhang W. Self-Assembled Blends of AB/BAB Block Copolymers Prepared through Dispersion RAFT Polymerization. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00771] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
| | - Jiaping Wu
- School
of Physics, Nankai University, Tianjin 300071, China
| | | | | | - Baohui Li
- School
of Physics, Nankai University, Tianjin 300071, China
| | | |
Collapse
|
14
|
Qu Y, Wang S, Khan H, Gao C, Zhou H, Zhang W. One-pot preparation of BAB triblock copolymer nano-objects through bifunctional macromolecular RAFT agent mediated dispersion polymerization. Polym Chem 2016. [DOI: 10.1039/c5py01917f] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nano-assemblies of a BAB triblock copolymer containing a solvophilic A block and two solvophobic B blocks were prepared through dispersion RAFT polymerization.
Collapse
Affiliation(s)
- Yaqing Qu
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Shuang Wang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Habib Khan
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Chengqiang Gao
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Heng Zhou
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| |
Collapse
|
15
|
Yilmaz ZE, Vanslambrouck S, Cajot S, Thiry J, Debuigne A, Lecomte P, Jérôme C, Riva R. Core cross-linked micelles of polyphosphoester containing amphiphilic block copolymers as drug nanocarriers. RSC Adv 2016. [DOI: 10.1039/c6ra07422g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Poly(ethylene oxide)-b-polyphosphoester bearing unsaturations are promising materials for drug delivery applications.
Collapse
Affiliation(s)
- Z. Ergul Yilmaz
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
| | - S. Vanslambrouck
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
| | - S. Cajot
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
| | - J. Thiry
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
| | - A. Debuigne
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
| | - P. Lecomte
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
| | - C. Jérôme
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
| | - R. Riva
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
| |
Collapse
|
16
|
Yao X, Du H, Xu N, Sun S, Zhu W, Shen Z. Fully degradable antibacterial poly(ester-phosphoester)s by ring-opening polymerization, “click” chemistry, and quaternization. J Appl Polym Sci 2015. [DOI: 10.1002/app.42647] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xuxia Yao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 People's Republic of China
| | - Hong Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 People's Republic of China
| | - Ning Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 People's Republic of China
| | - Shuai Sun
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 People's Republic of China
| | - Weipu Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 People's Republic of China
| | - Zhiquan Shen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 People's Republic of China
| |
Collapse
|
17
|
Kang H, Su Y, He X, Zhang S, Li J, Zhang W. In situsynthesis of ABA triblock copolymer nanoparticles by seeded RAFT polymerization: Effect of the chain length of the third a block on the triblock copolymer morphology. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27620] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Haijiao Kang
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University; Beijing 100083 China
| | - Yang Su
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Institute of Polymer Chemistry, Nankai University; Tianjin 300071 China
| | - Xin He
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Institute of Polymer Chemistry, Nankai University; Tianjin 300071 China
| | - Shifeng Zhang
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University; Beijing 100083 China
| | - Jianzhang Li
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University; Beijing 100083 China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Institute of Polymer Chemistry, Nankai University; Tianjin 300071 China
| |
Collapse
|
18
|
Zhang F, Zhang S, Pollack SF, Li R, Gonzalez AM, Fan J, Zou J, Leininger SE, Pavía-Sanders A, Johnson R, Nelson LD, Raymond JE, Elsabahy M, Hughes DMP, Lenox MW, Gustafson TP, Wooley KL. Improving Paclitaxel Delivery: In Vitro and In Vivo Characterization of PEGylated Polyphosphoester-Based Nanocarriers. J Am Chem Soc 2015; 137:2056-66. [DOI: 10.1021/ja512616s] [Citation(s) in RCA: 157] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Laura D. Nelson
- Department
of Pediatric Research, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | | | - Mahmoud Elsabahy
- Department
of Pharmaceutics, and Assiut International Center of Nanomedicine,
Al-Rajhy Liver Hospital, Assiut University, 71515 Assiut, Egypt
| | - Dennis M. P. Hughes
- Department
of Pediatric Research, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | | | | | | |
Collapse
|
19
|
Plichta A, Lisowska P, Kundys A, Zychewicz A, Dębowski M, Florjańczyk Z. Chemical recycling of poly(lactic acid) via controlled degradation with protic (macro)molecules. Polym Degrad Stab 2014. [DOI: 10.1016/j.polymdegradstab.2014.03.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
20
|
Bian J, Hao Y, He J, Zhang W, Zhang M, Ni P. Synthesis and characterization of a biodegradable ABC triblock terpolymer as co-delivery carrier of doxorubicin and DNA. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27361] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jiao Bian
- College of Chemistry, Chemical Engineering and Materials Science, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Soochow University; Suzhou 215123 People's Republic of China
| | - Ying Hao
- College of Chemistry, Chemical Engineering and Materials Science, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Soochow University; Suzhou 215123 People's Republic of China
| | - Jinlin He
- College of Chemistry, Chemical Engineering and Materials Science, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Soochow University; Suzhou 215123 People's Republic of China
| | - Wenling Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Soochow University; Suzhou 215123 People's Republic of China
| | - Mingzu Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Soochow University; Suzhou 215123 People's Republic of China
| | - Peihong Ni
- College of Chemistry, Chemical Engineering and Materials Science, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Soochow University; Suzhou 215123 People's Republic of China
| |
Collapse
|
21
|
Sun CY, Dou S, Du JZ, Yang XZ, Li YP, Wang J. Doxorubicin conjugate of poly(ethylene glycol)-block-polyphosphoester for cancer therapy. Adv Healthc Mater 2014; 3:261-72. [PMID: 23852934 DOI: 10.1002/adhm.201300091] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Indexed: 12/22/2022]
Abstract
Polyphosphoesters with repeating phosphoester linkages in the backbone can be easily functionalized, are biodegradable and potentially biocompatible, and may be potential candidates as polymer carriers of drug conjugates. Here, the efficacy of a polyphosphoester drug conjugate as an anticancer agent in vivo is assessed for the first time. With controlled synthesis, doxorubicin conjugated to poly(ethylene glycol)-block-polyphosphoester (PPEH-DOX) via labile hydrazone bonds form spherical nanoparticles in aqueous solution with an average diameter of ≈60 nm. These nanoparticles are effectively internalized by MDA-MB-231 breast cancer cells and release the conjugated doxorubicin in response to the intracellular pH of endosomes and lysosomes, resulting in significant antiproliferative activity in cancer cells. Compared with free doxorubicin injection, PPEH-DOX injection exhibits much longer circulation behavior in the plasma of mice and leads to enhanced drug accumulation in tumor cells. In an MDA-MB-231 xenograft murine model, inhibition of tumor growth with systemic delivery of PPEH-DOX nanoparticles is more pronounced compared with free doxorubicin injection, suggesting the potential of polyphosphoesters as carriers of drug conjugates in cancer therapy.
Collapse
Affiliation(s)
- Chun-Yang Sun
- Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, P.R. China
| | | | | | | | | | | |
Collapse
|
22
|
Huo F, Gao C, Dan M, Xiao X, Su Y, Zhang W. Seeded dispersion RAFT polymerization and synthesis of well-defined ABA triblock copolymer flower-like nanoparticles. Polym Chem 2014. [DOI: 10.1039/c3py01569f] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Flower-like triblock copolymer nanoparticles containing a central looped solvophilic block and two outer solvophobic blocks are prepared by seeded dispersion RAFT polymerization.
Collapse
Affiliation(s)
- Fei Huo
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
| | - Chengqiang Gao
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
| | - Meihan Dan
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
| | - Xin Xiao
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
| | - Yang Su
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
| |
Collapse
|
23
|
Gao C, Li S, Li Q, Shi P, Shah SA, Zhang W. Dispersion RAFT polymerization: comparison between the monofunctional and bifunctional macromolecular RAFT agents. Polym Chem 2014. [DOI: 10.1039/c4py01069h] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The dispersion RAFT polymerizations mediated with monofunctional and bifunctional macro-RAFT agents were comparatively studied, in which different block copolymer morphologies were detected.
Collapse
Affiliation(s)
- Chengqiang Gao
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071, China
| | - Shentong Li
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071, China
| | - Quanlong Li
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071, China
| | - Pengfei Shi
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071, China
| | - Sayyar Ali Shah
- Department of Chemistry
- Tianjin University
- Tianjin 300072, China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071, China
| |
Collapse
|
24
|
Mi HY, Salick MR, Jing X, Jacques BR, Crone WC, Peng XF, Turng LS. Characterization of thermoplastic polyurethane/polylactic acid (TPU/PLA) tissue engineering scaffolds fabricated by microcellular injection molding. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:4767-76. [PMID: 24094186 PMCID: PMC4554542 DOI: 10.1016/j.msec.2013.07.037] [Citation(s) in RCA: 196] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 06/17/2013] [Accepted: 07/25/2013] [Indexed: 11/19/2022]
Abstract
Polylactic acid (PLA) and thermoplastic polyurethane (TPU) are two kinds of biocompatible and biodegradable polymers that can be used in biomedical applications. PLA has rigid mechanical properties while TPU possesses flexible mechanical properties. Blended TPU/PLA tissue engineering scaffolds at different ratios for tunable properties were fabricated via twin screw extrusion and microcellular injection molding techniques for the first time. Multiple test methods were used to characterize these materials. Fourier transform infrared spectroscopy (FTIR) confirmed the existence of the two components in the blends; differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) confirmed the immiscibility between the TPU and PLA. Scanning electron microscopy (SEM) images verified that, at the composition ratios studied, PLA was dispersed as spheres or islands inside the TPU matrix and that this phase morphology further influenced the scaffold's microstructure and surface roughness. The blends exhibited a large range of mechanical properties that covered several human tissue requirements. 3T3 fibroblast cell culture showed that the scaffolds supported cell proliferation and migration properly. Most importantly, this study demonstrated the feasibility of mass producing biocompatible PLA/TPU scaffolds with tunable microstructures, surface roughnesses, and mechanical properties that have the potential to be used as artificial scaffolds in multiple tissue engineering applications.
Collapse
Affiliation(s)
- Hao-Yang Mi
- National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou, China
- Department of Mechanical Engineering, University of Wisconsin–Madison, WI, USA
| | - Max R. Salick
- Department of Engineering Physics, University of Wisconsin–Madison, WI, USA
| | - Xin Jing
- National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou, China
- Department of Mechanical Engineering, University of Wisconsin–Madison, WI, USA
| | | | - Wendy C. Crone
- Department of Engineering Physics, University of Wisconsin–Madison, WI, USA
| | - Xiang-Fang Peng
- National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou, China
| | - Lih-Sheng Turng
- Department of Mechanical Engineering, University of Wisconsin–Madison, WI, USA
| |
Collapse
|
25
|
Elsabahy M, Zhang S, Zhang F, Deng ZJ, Lim YH, Wang H, Parsamian P, Hammond PT, Wooley KL. Surface charges and shell crosslinks each play significant roles in mediating degradation, biofouling, cytotoxicity and immunotoxicity for polyphosphoester-based nanoparticles. Sci Rep 2013; 3:3313. [PMID: 24264796 PMCID: PMC3837308 DOI: 10.1038/srep03313] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 11/06/2013] [Indexed: 01/12/2023] Open
Abstract
The construction of nanostructures from biodegradable precursors and shell/core crosslinking have been pursued as strategies to solve the problems of toxicity and limited stability, respectively. Polyphosphoester (PPE)-based micelles and crosslinked nanoparticles with non-ionic, anionic, cationic, and zwitterionic surface characteristics for potential packaging and delivery of therapeutic and diagnostic agents, were constructed using a quick and efficient synthetic strategy, and importantly, demonstrated remarkable differences in terms of cytotoxicity, immunotoxicity, and biofouling properties, as a function of their surface characteristics and also with dependence on crosslinking throughout the shell layers. For instance, crosslinking of zwitterionic micelles significantly reduced the immunotoxicity, as evidenced from the absence of secretions of any of the 23 measured cytokines from RAW 264.7 mouse macrophages treated with the nanoparticles. The micelles and their crosslinked analogs demonstrated lower cytotoxicity than several commercially-available vehicles, and their degradation products were not cytotoxic to cells at the range of the tested concentrations. PPE-nanoparticles are expected to have broad implications in clinical nanomedicine as alternative vehicles to those involved in several of the currently available medications.
Collapse
Affiliation(s)
- Mahmoud Elsabahy
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut Clinical Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut, Egypt
- These authors contributed equally to this work
| | - Shiyi Zhang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
- David H. Koch Institute for Integrative, Cancer Research, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
- These authors contributed equally to this work
| | - Fuwu Zhang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Zhou J. Deng
- David H. Koch Institute for Integrative, Cancer Research, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Young H. Lim
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Hai Wang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Perouza Parsamian
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Paula T. Hammond
- David H. Koch Institute for Integrative, Cancer Research, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Karen L. Wooley
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| |
Collapse
|
26
|
Shen Y, Zhang S, Zhang F, Loftis A, Pavía-Sanders A, Zou J, Fan J, Taylor JSA, Wooley KL. Polyphosphoester-based cationic nanoparticles serendipitously release integral biologically-active components to serve as novel degradable inducible nitric oxide synthase inhibitors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:5609-14. [PMID: 23999874 PMCID: PMC4404032 DOI: 10.1002/adma.201302842] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Indexed: 05/16/2023]
Abstract
A degradable polyphosphoester (PPE)-based cationic nanoparticle (cSCK), which is integrated constructed as a novel degradable drug device, demonstrates surprisingly efficient inhibition of inducible nitric oxide synthase (iNOS) transcription, and eventually inhibits nitric oxide (NO) over-production, without loading of any specific therapeutic drugs. This system may serve as a promising anti-inflammatory agent toward the treatment of acute lung injury.
Collapse
Affiliation(s)
- Yuefei Shen
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, 63130, USA
| | - Shiyi Zhang
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, 63130, USA, Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Fuwu Zhang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Alexander Loftis
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, 63130, USA
| | - Adriana Pavía-Sanders
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Jiong Zou
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Jingwei Fan
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - John-Stephen A. Taylor
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, 63130, USA
| | - Karen L. Wooley
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| |
Collapse
|
27
|
Yang XZ, Dou S, Sun TM, Mao CQ, Wang HX, Wang J. Systemic delivery of siRNA with cationic lipid assisted PEG-PLA nanoparticles for cancer therapy. J Control Release 2011; 156:203-11. [PMID: 21839126 DOI: 10.1016/j.jconrel.2011.07.035] [Citation(s) in RCA: 182] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Revised: 06/30/2011] [Accepted: 07/26/2011] [Indexed: 01/19/2023]
Abstract
Delivery of small interfering RNA (siRNA) has been one of the major hurdles for the application of RNA interference in therapeutics. Here, we describe a cationic lipid assisted polymeric nanoparticle system with stealthy property for efficient siRNA encapsulation and delivery, which was fabricated with poly(ethylene glycol)-b-poly(d,l-lactide), siRNA and a cationic lipid, using a double emulsion-solvent evaporation technique. By incorporation of the cationic lipid, the encapsulation efficiency of siRNA into the nanoparticles could be above 90% and the siRNA loading weight ratio was up to 4.47%, while the diameter of the nanoparticles was around 170 to 200nm. The siRNA retained its integrity within the nanoparticles, which were effectively internalized by cancer cells and escaped from the endosome, resulting in significant gene knockdown. This effect was demonstrated by significant down-regulation of luciferase expression in HepG2-luciferase cells which stably express luciferase, and suppression of polo-like kinase 1 (Plk1) expression in HepG2 cells, following delivery of specific siRNAs by the nanoparticles. Furthermore, the nanoparticles carrying siRNA targeting the Plk1 gene were found to induce remarkable apoptosis in both HepG2 and MDA-MB-435s cancer cells. Systemic delivery of specific siRNA by nanoparticles significantly inhibited luciferase expression in an orthotopic murine liver cancer model and suppressed tumor growth in a MDA-MB-435s murine xenograft model, suggesting its therapeutic promise in disease treatment.
Collapse
Affiliation(s)
- Xian-Zhu Yang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230027, PR China
| | | | | | | | | | | |
Collapse
|
28
|
Zhai X, Huang W, Liu J, Pang Y, Zhu X, Zhou Y, Yan D. Micelles from amphiphilic block copolyphosphates for drug delivery. Macromol Biosci 2011; 11:1603-10. [PMID: 22052566 DOI: 10.1002/mabi.201100163] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Revised: 07/04/2011] [Indexed: 12/20/2022]
Abstract
Amphiphilic block copolyphosphates (PEP-b-PIPPs) are synthesized by two-step ROP of cyclic phosphate monomers with different pedant groups. They can spontaneously self-assemble into approximately spherical micelles ranging in size between 89 and 198 nm in water. A typical hydrophobic anti-cancer drug DOX is encapsulated into the micelles. The release rate of DOX slows down with increasing hydrophobic block length of PIPP. DOX-loaded micelles are investigated for the proliferation inhibition of Hela cells and the DOX dose required for 50% cellular growth inhibition is found to be 0.8 µg mL(-1). It is demonstrated that PEP-b-PIPP micelles can be used as a safe and promising drug delivery system.
Collapse
Affiliation(s)
- Xiang Zhai
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, China
| | | | | | | | | | | | | |
Collapse
|
29
|
Zhu WP, Sun S, Xu N, Gou PF, Shen ZQ. Synthesis, characterization and micellization of heterograft copolymers based on phosphoester functionalized macromonomers via “grafting through” method. J Appl Polym Sci 2011. [DOI: 10.1002/app.34452] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
30
|
Mao J, Ji X, Bo S. Synthesis and pH/Temperature-Responsive Behavior of PLLA-b
-PDMAEMA Block Polyelectrolytes Prepared via ROP and ATRP. MACROMOL CHEM PHYS 2011. [DOI: 10.1002/macp.201000672] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
31
|
Wang YC, Yuan YY, Wang F, Wang J. Syntheses and characterization of block copolymers of poly(aliphatic ester) with clickable polyphosphoester. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24462] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
32
|
Liu J, Huang W, Pang Y, Zhu X, Zhou Y, Yan D. Hyperbranched polyphosphates for drug delivery application: design, synthesis, and in vitro evaluation. Biomacromolecules 2010; 11:1564-70. [PMID: 20364861 DOI: 10.1021/bm100188h] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A water-soluble hyperbranched polyphosphate (HPHEEP) was synthesized through the self-condensation ring-opening polymerization (SCROP) of 2-(2-hydroxyethoxy)ethoxy-2-oxo-1,3,2-dioxaphospholane (HEEP), and its suitability as a drug carrier was then evaluated in vitro. Methyl tetrazolium (MTT) and live/dead staining assays indicated that HPHEEP had excellent biocompatibility against COS-7 cells. The good biodegradability of HPHEEP was observed by NMR analysis, and the degradation products were nontoxic to COS-7 cells. Flow cytometry and confocal laser scanning microscopy analyses suggested that HPHEEP could be easily internalized by vivid cells and preferentially accumulated in the perinuclear region. Furthermore, a hydrophobic anticancer drug, chlorambucil, was used as a model drug and covalently bound to HPHEEP. The chlorambucil dose of the conjugate and free drug required for 50% cellular growth inhibition were 75 and 50 microg/mL, respectively, according to MTT assay against an MCF-7 breast cancer cell line in vitro. This high activity of the conjugate may be attributed to the biodegradability of HPHEEP so as to release the chlorambucil in cells. Therefore, on the basis of its biocompatibility and biodegradability, HPHEEP could provide a charming opportunity to design some excellent drug delivery systems for therapeutic applications.
Collapse
Affiliation(s)
- Jinyao Liu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
| | | | | | | | | | | |
Collapse
|
33
|
Liu J, Huang W, Pang Y, Zhu X, Zhou Y, Yan D. Self-assembled micelles from an amphiphilic hyperbranched copolymer with polyphosphate arms for drug delivery. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:10585-10592. [PMID: 20384307 DOI: 10.1021/la1006988] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A novel type of amphiphilic hyperbranched multiarm copolymer [H40-star-(PLA-b-PEP-OH)] was synthesized through a two-step ring-opening polymerization (ROP) procedure and applied to drug delivery. First, Boltorn H40 was used as macroinitiator for the ROP of L-lactide to form the intermediate (H40-star-PLA-OH). Then, the ROP of ethyl ethylene phosphate was further initiated to produce H40-star-(PLA-b-PEP-OH). The resulting hyperbranched multiarm copolymers were characterized by (1)H, (13)C, and (31)P NMR, GPC, and FTIR spectra. Benefiting from the amphiphilic structure, H40-star-(PLA-b-PEP-OH) was able to self-assemble into micelles in water with an average diameter of 130 nm. In vitro evaluation of these micelles demonstrated their excellent biocompatibility and efficient cellular uptake by methyl tetrazolium assay, flow cytometry, and confocal laser scanning microscopy measurements. Doxorubicin-loaded micelles were investigated for the proliferation inhibition of a Hela human cervical carcinoma cell line, and the Doxorubicin dose required for 50% cellular growth inhibition was found to be 1 microg/mL. These results indicate that H40-star-(PLA-b-PEP-OH) micelles can be used as safe, promising drug-delivery systems.
Collapse
Affiliation(s)
- Jinyao Liu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China
| | | | | | | | | | | |
Collapse
|
34
|
Liu X, Ni P, He J, Zhang M. Synthesis and Micellization of pH/Temperature-Responsive Double-Hydrophilic Diblock Copolymers Polyphosphoester-block-poly[2-(dimethylamino)ethyl methacrylate] Prepared via ROP and ATRP. Macromolecules 2010. [DOI: 10.1021/ma902658n] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xu Liu
- Key Laboratory of Organic Chemistry of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Peihong Ni
- Key Laboratory of Organic Chemistry of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Jinlin He
- Key Laboratory of Organic Chemistry of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Mingzu Zhang
- Key Laboratory of Organic Chemistry of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| |
Collapse
|
35
|
Liu Q, Zhu M, Chen Y. Synthesis and characterization of multi-block copolymers containing poly [(3-hydroxybutyrate)-co
-(3-hydroxyvalerate)] and poly(ethylene glycol). POLYM INT 2010. [DOI: 10.1002/pi.2797] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
36
|
Wang YC, Yuan YY, Du JZ, Yang XZ, Wang J. Recent Progress in Polyphosphoesters: From Controlled Synthesis to Biomedical Applications. Macromol Biosci 2009; 9:1154-64. [DOI: 10.1002/mabi.200900253] [Citation(s) in RCA: 176] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
37
|
Wang YC, Xia H, Yang XZ, Wang J. Synthesis and thermoresponsive behaviors of biodegradable Pluronic analogs. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23660] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
38
|
Wang F, Wang YC, Yan LF, Wang J. Biodegradable vesicular nanocarriers based on poly(ɛ-caprolactone)-block-poly(ethyl ethylene phosphate) for drug delivery. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.09.007] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
39
|
Yang XZ, Sun TM, Dou S, Wu J, Wang YC, Wang J. Block Copolymer of Polyphosphoester and Poly(l-Lactic Acid) Modified Surface for Enhancing Osteoblast Adhesion, Proliferation, and Function. Biomacromolecules 2009; 10:2213-20. [DOI: 10.1021/bm900390k] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xian-Zhu Yang
- Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230027, People’s Republic of China
| | - Tian-Meng Sun
- Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230027, People’s Republic of China
| | - Shuang Dou
- Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230027, People’s Republic of China
| | - Juan Wu
- Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230027, People’s Republic of China
| | - Yu-Cai Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230027, People’s Republic of China
| | - Jun Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230027, People’s Republic of China
| |
Collapse
|
40
|
Liu J, Huang W, Zhou Y, Yan D. Synthesis of Hyperbranched Polyphosphates by Self-Condensing Ring-Opening Polymerization of HEEP without Catalyst. Macromolecules 2009. [DOI: 10.1021/ma900798h] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Jinyao Liu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Wei Huang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Yongfeng Zhou
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Deyue Yan
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| |
Collapse
|
41
|
Xiong MH, Wu J, Wang YC, Li LS, Liu XB, Zhang GZ, Yan LF, Wang J. Synthesis of PEG-Armed and Polyphosphoester Core-Cross-Linked Nanogel by One-Step Ring-Opening Polymerization. Macromolecules 2009. [DOI: 10.1021/ma802688y] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Meng-Hua Xiong
- Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, and Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230027, People’s Republic of China
| | - Juan Wu
- Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, and Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230027, People’s Republic of China
| | - Yu-Cai Wang
- Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, and Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230027, People’s Republic of China
| | - Lai-Sheng Li
- Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, and Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230027, People’s Republic of China
| | - Xiao-Bing Liu
- Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, and Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230027, People’s Republic of China
| | - Guang-Zhao Zhang
- Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, and Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230027, People’s Republic of China
| | - Li-Feng Yan
- Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, and Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230027, People’s Republic of China
| | - Jun Wang
- Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, and Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230027, People’s Republic of China
| |
Collapse
|
42
|
Wu J, Liu XQ, Wang YC, Wang J. Template-free synthesis of biodegradable nanogels with tunable sizes as potential carriers for drug delivery. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b908768k] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|