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Kyomuhimbo HD, Feleni U, Haneklaus NH, Brink H. Recent Advances in Applications of Oxidases and Peroxidases Polymer-Based Enzyme Biocatalysts in Sensing and Wastewater Treatment: A Review. Polymers (Basel) 2023; 15:3492. [PMID: 37631549 PMCID: PMC10460086 DOI: 10.3390/polym15163492] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/10/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
Oxidase and peroxidase enzymes have attracted attention in various biotechnological industries due to their ease of synthesis, wide range of applications, and operation under mild conditions. Their applicability, however, is limited by their poor stability in harsher conditions and their non-reusability. As a result, several approaches such as enzyme engineering, medium engineering, and enzyme immobilization have been used to improve the enzyme properties. Several materials have been used as supports for these enzymes to increase their stability and reusability. This review focusses on the immobilization of oxidase and peroxidase enzymes on metal and metal oxide nanoparticle-polymer composite supports and the different methods used to achieve the immobilization. The application of the enzyme-metal/metal oxide-polymer biocatalysts in biosensing of hydrogen peroxide, glucose, pesticides, and herbicides as well as blood components such as cholesterol, urea, dopamine, and xanthine have been extensively reviewed. The application of the biocatalysts in wastewater treatment through degradation of dyes, pesticides, and other organic compounds has also been discussed.
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Affiliation(s)
- Hilda Dinah Kyomuhimbo
- Department of Chemical Engineering, University of Pretoria, Pretoria 0028, South Africa;
| | - Usisipho Feleni
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Florida Campus, Roodepoort, Johannesburg 1710, South Africa;
| | - Nils H. Haneklaus
- Transdisciplinarity Laboratory Sustainable Mineral Resources, University for Continuing Education Krems, 3500 Krems, Austria;
| | - Hendrik Brink
- Department of Chemical Engineering, University of Pretoria, Pretoria 0028, South Africa;
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2
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Ishihara K, Fukazawa K. Cell-membrane-inspired polymers for constructing biointerfaces with efficient molecular recognition. J Mater Chem B 2022; 10:3397-3419. [PMID: 35389394 DOI: 10.1039/d2tb00242f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Fabrication of devices that accurately recognize, detect, and separate target molecules from mixtures is a crucial aspect of biotechnology for applications in medical, pharmaceutical, and food sciences. This technology has also been recently applied in solving environmental and energy-related problems. In molecular recognition, biomolecules are typically complexed with a substrate, and specific molecules from a mixture are recognized, captured, and reacted. To increase sensitivity and efficiency, the activity of the biomolecules used for capture should be maintained, and non-specific reactions on the surface should be prevented. This review summarizes polymeric materials that are used for constructing biointerfaces. Precise molecular recognition occurring at the surface of cell membranes is fundamental to sustaining life; therefore, materials that mimic the structure and properties of this particular surface are emphasized in this article. The requirements for biointerfaces to eliminate nonspecific interactions of biomolecules are described. In particular, the major issue of protein adsorption on biointerfaces is discussed by focusing on the structure of water near the interface from a thermodynamic viewpoint; moreover, the structure of polymer molecules that control the water structure is considered. Methodologies enabling stable formation of these interfaces on material surfaces are also presented.
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Affiliation(s)
- Kazuhiko Ishihara
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Kyoko Fukazawa
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
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3
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Motamed Fath P, Rahimnejad M, Moradi-kalbolandi S, Ebrahimi Hosseinzadeh B, Jamshidnejad-tosaramandani T. Improvement of cytotoxicity and necrosis activity of ganoderic acid a through the development of PMBN-A.Her2-GA as a targeted nano system. RSC Adv 2022; 12:1228-1237. [PMID: 35425091 PMCID: PMC8978931 DOI: 10.1039/d1ra06488f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 12/11/2021] [Indexed: 12/19/2022] Open
Abstract
The targeting nano carriers have been promptly proposed to overcome the current obstacles in conventional chemotherapy approaches for cancer. Currently, PMBN (poly[MPC-co-(BMA)-co-(MEONP)]), is considered as a promising amphiphilic polymer that could be easily targeted and conjugated to hydrophobic substances with low bioavailability. To target breast cancer cells overexpressing human epidermal receptor 2 (HER2) receptors, anti-HER2 monoclonal antibody (A.Her2) was conjugated to PMBN and afterward loaded with ganoderic acid A (GA-A) as an anti-cancer metabolite. The efficacy of conjugation and loading was reasonably favourable. The rod shape of the polymer with a size of approximately 160 ± 30 nm was confirmed. Our results indicated that PMBN-A.Her2-GA is an anionic nanostructure with an appropriate form and capable of being applied in cancer therapy. Subsequently, cytotoxicity analysis revealed an improved anti-proliferative effect of GA-A. In this article, GA-A is used for the first time as a natural agent for targeting breast cancer cells based on the newly developed nano carrier as a targeted DDS.![]()
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Affiliation(s)
- P. Motamed Fath
- Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - M. Rahimnejad
- Biomedical Engineering Institute, School of Medicine, Université de Montréal, Montreal, Canada
- Research Centre, Centre Hospitalier de L'Université de Montréal (CRCHUM), Montréal, Canada
| | - S. Moradi-kalbolandi
- Recombinant Proteins Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
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Impact of REDV peptide density and its linker structure on the capture, movement, and adhesion of flowing endothelial progenitor cells in microfluidic devices. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112381. [PMID: 34579900 DOI: 10.1016/j.msec.2021.112381] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/29/2021] [Accepted: 08/13/2021] [Indexed: 11/23/2022]
Abstract
Ligand-immobilization to stents and vascular grafts is expected to promote endothelialization by capturing flowing endothelial progenitor cells (EPCs). However, the optimized ligand density and linker structure have not been fully elucidated. Here, we report that flowing EPCs were selectively captured by the REDV peptide conjugated with a short linker. The microchannel surface was modified with the REDV peptide via Gly-Gly-Gly (G3), (Gly-Gly-Gly)3 (G9), and diethylene glycol (diEG) linkers, and the moving velocity and captured ratio were evaluated. On the unmodified microchannels, the moving velocity of the cells exhibited a unimodal distribution similar to the liquid flow. The velocity of the endothelial cells and EPCs on the peptide-immobilized surface indicated a bimodal distribution, and approximately 20 to 30% of cells moved slower than the liquid flow, suggesting that the cells were captured and rolled on the surface. When the immobilized ligand density was lower than 1 molecule/nm2, selective cell capture was observed only in REDV with G3 and diEG linkers, but not in G9 linkers. An in silico study revealed that the G9 linker tends to form a bent structure, and the REDV peptide is oriented to the substrate side. These results indicated that REDV captured the flowing EPC in a sequence-specific manner, and that the short linker was more adequate.
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5
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Machtakova M, Han S, Yangazoglu Y, Lieberwirth I, Thérien-Aubin H, Landfester K. Self-sustaining enzyme nanocapsules perform on-site chemical reactions. NANOSCALE 2021; 13:4051-4059. [PMID: 33592083 DOI: 10.1039/d0nr08116g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nanoreactors offer a great platform for the onsite generation of functional products. However, the production of the desired compound is often limited by either the availability of the reagents or their diffusion across the nanoreactor shell. To overcome this issue, we synthesized self-sustaining nanoreactors carrying the required reagents with them. They are composed of active enzymes crosslinked as nanocapsules and the inner core serves as a reservoir for reagents. Upon trigger, the enzymatic shell catalyzes the conversion of the encapsulated payload. This concept was demonstrated by the preparation of nanoreactors loaded with sensing molecules for the detection of glucose in biological media. More importantly, the system introduced here serves as an adaptable platform for biomedical applications, since the nanoreactors display good cellular uptake and high activity within cells. Consequently, they could act as nanofactories for the in situ generation of functional molecules.
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Affiliation(s)
- Marina Machtakova
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
| | - Shen Han
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
| | - Yeliz Yangazoglu
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
| | - Ingo Lieberwirth
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
| | | | - Katharina Landfester
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
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6
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Lu Q, Yi M, Zhang M, Shi Z, Zhang S. Folate-Conjugated Cell Membrane Mimetic Polymer Micelles for Tumor-Cell-Targeted Delivery of Doxorubicin. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:504-512. [PMID: 30567432 DOI: 10.1021/acs.langmuir.8b03693] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Tumor-targeting nano-drug-delivery systems hold great potential to improve the therapeutic efficacy and alleviate the side effects of cancer treatments. Herein, folic acid (FA)-decorated amphiphilic copolymer of FA-P(MPC- co-MaPCL) (MPC: 2-methacryloxoethyl phosphorylcholine, MaPCL: poly(ε-caprolactone) macromonomer) is synthesized and its micelles are fabricated for doxorubicin (DOX) delivery. And non-FA-decorated P(MPC- co-MaPCL) micelles are used as the control. Dynamic light scattering and scanning electron microscopy measurements reveal that FA-P(MPC- co-MaPCL) and P(MPC- co-MaPCL) micelles are spherical with average diameters of 140 and 90 nm, respectively. The evaluation in vitro demonstrates that the blank micelles are nontoxic, while DOX-loaded FA-P(MPC- co-MaPCL) micelles show significant cytotoxicity to HeLa cells and slight cytotoxicity to L929 cells. Moreover, the cellular uptake of DOX-loaded FA-P(MPC- co-MaPCL) micelles in HeLa cells are 4.3-fold and 1.7-fold higher than that of DOX-loaded P(MPC- co-MaPCL) micelles and free DOX after 6 h of incubation, respectively. These results indicate the great potential of this system in anticancer target drug-delivery applications.
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Affiliation(s)
- Qian Lu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science , Northwest University , Xi'an 710127 , China
| | - Meijun Yi
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science , Northwest University , Xi'an 710127 , China
| | - Mengchen Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science , Northwest University , Xi'an 710127 , China
| | - Zhangyu Shi
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science , Northwest University , Xi'an 710127 , China
| | - Shiping Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science , Northwest University , Xi'an 710127 , China
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7
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Li T, Li N, Ma Y, Bai YJ, Xing CM, Gong YK. A blood cell repelling and tumor cell capturing surface for high-purity enrichment of circulating tumor cells. J Mater Chem B 2019; 7:6087-6098. [DOI: 10.1039/c9tb01649j] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A red blood cell membrane mimetic surface decorated with FA and RGD ligands can efficiently capture tumor cells with high selectivity.
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Affiliation(s)
- Tong Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
| | - Nan Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
| | - Yao Ma
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
| | - Yun-Jie Bai
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
| | - Cheng-Mei Xing
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
| | - Yong-Kuan Gong
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
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8
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Ohto-Fujita E, Shimizu M, Sano S, Kurimoto M, Yamazawa K, Atomi T, Sakurai T, Murakami Y, Takami T, Murakami T, Yoshimura K, Hasebe Y, Atomi Y. Solubilized eggshell membrane supplies a type III collagen-rich elastic dermal papilla. Cell Tissue Res 2018; 376:123-135. [PMID: 30448901 DOI: 10.1007/s00441-018-2954-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 10/27/2018] [Indexed: 12/19/2022]
Abstract
Signs of aging in facial skin correlate with lifespan and chronic disease; however, the health of aging skin has not been extensively studied. In healthy young skin, the dermis forms a type III collagen-rich dermal papilla, where capillary vessels supply oxygen and nutrients to basal epidermal cells. Chicken eggshell membranes (ESMs) have been used as traditional medicines to promote skin wound healing in Asian countries for many years. Previously, we designed an experimental system in which human dermal fibroblasts (HDFs) were cultured on a dish with a solubilized ESM (S-ESM) bound to an artificial phosphorylcholine polymer; we found that genes that promoted the health of the papillary dermis, such as those encoding type III collagen, were induced in the S-ESM environment. The present study found that a gel with a ratio of 20% type III/80% type I collagen, similar to that of the baby skin, resulted in a higher elasticity than 100% type I collagen (p < 0.05) and that HDFs in the gel showed high mitochondrial activity. Thus, we decided to perform further evaluations to identify the effects of S-ESM on gene expression in the skin of hairless mice and found a significant increase of type III collagen in S-ESM. Picrosirius Red staining showed that type III collagen significantly increased in the papillary dermis after S-ESM treatment. Moreover, S-ESM application significantly improved human arm elasticity and reduced facial wrinkles. ESMs may have applications in extending lifespan by reducing the loss of tissue elasticity through the increase of type III collagen.
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Affiliation(s)
- Eri Ohto-Fujita
- Material Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan
| | - Miho Shimizu
- Material Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan
| | - Shoei Sano
- Material Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan
| | - Masashi Kurimoto
- Material Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan
| | - Kai Yamazawa
- Material Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan
| | - Tomoaki Atomi
- Faculty of Health Sciences, Department of Physical Therapy, Kyorin University, 5-4-1 Shimorenjaku, Mitaka-shi, Tokyo, 181-8612, Japan
| | - Takashi Sakurai
- Department of Life Sciences, The Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1, Komaba, Meguro-ku, Tokyo, 153-8902, Japan.,Astellas Institute for Regenerative Medicine, 33 Locke Drive, Marlborough, MA, 01752, USA
| | - Yoshihiko Murakami
- Department of Organic and Polymer Materials Chemistry, Faculty of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan
| | - Taku Takami
- Department of Organic and Polymer Materials Chemistry, Faculty of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan
| | - Tomoaki Murakami
- Laboratory of Veterinary Toxicology, Cooperative Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan
| | - Kotaro Yoshimura
- Department of Plastic Surgery, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke-shi, Tochigi-ken, 329-0498, Japan
| | - Yukio Hasebe
- Almado Inc., 3-6-18 Kyobashi, Chuo-ku, Tokyo, 104-0031, Japan
| | - Yoriko Atomi
- Material Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei-shi, Tokyo, 184-8588, Japan.
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Ju Y, Zhang Y, Zhao H. Fabrication of Polymer-Protein Hybrids. Macromol Rapid Commun 2018; 39:e1700737. [PMID: 29383794 DOI: 10.1002/marc.201700737] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 12/13/2017] [Indexed: 12/11/2022]
Abstract
Rapid developments in organic chemistry and polymer chemistry promote the synthesis of polymer-protein hybrids with different structures and biofunctionalities. In this feature article, recent progress achieved in the synthesis of polymer-protein conjugates, protein-nanoparticle core-shell structures, and polymer-protein nanogels/hydrogels is briefly reviewed. The polymer-protein conjugates can be synthesized by the "grafting-to" or the "grafting-from" approach. In this article, different coupling reactions and polymerization methods used in the synthesis of bioconjugates are reviewed. Protein molecules can be immobilized on the surfaces of nanoparticles by covalent or noncovalent linkages. The specific interactions and chemical reactions employed in the synthesis of core-shell structures are discussed. Finally, a general introduction to the synthesis of environmentally responsive polymer-protein nanogels/hydrogels by chemical cross-linking reactions or molecular recognition is provided.
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Affiliation(s)
- Yuanyuan Ju
- College of Chemistry and Key Laboratory of Functional Polymer Materials of the Ministry of Education, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300071, China
| | - Yue Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Hanying Zhao
- College of Chemistry and Key Laboratory of Functional Polymer Materials of the Ministry of Education, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300071, China
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10
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Molecular integration on phospholipid polymer-coated magnetic beads for gene expression analysis in cells. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2017.08.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Ishihara K, Mu M, Konno T. Water-soluble and amphiphilic phospholipid copolymers having 2-methacryloyloxyethyl phosphorylcholine units for the solubilization of bioactive compounds. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 29:844-862. [DOI: 10.1080/09205063.2017.1377023] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Kazuhiko Ishihara
- Department of Materials Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Mingwei Mu
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Tomohiro Konno
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan
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12
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Xing CM, Meng FN, Quan M, Ding K, Dang Y, Gong YK. Quantitative fabrication, performance optimization and comparison of PEG and zwitterionic polymer antifouling coatings. Acta Biomater 2017; 59:129-138. [PMID: 28663144 DOI: 10.1016/j.actbio.2017.06.034] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 06/07/2017] [Accepted: 06/26/2017] [Indexed: 01/15/2023]
Abstract
A versatile fabrication and performance optimization strategy of PEG and zwitterionic polymer coatings is developed on the sensor chip of surface plasma resonance (SPR) instrument. A random copolymer bearing phosphorylcholine zwitterion and active ester side chains (PMEN) and carboxylic PEG coatings with comparable thicknesses were deposited on SPR sensor chips via amidation coupling on the precoated polydopamine (PDA) intermediate layer. The PMEN coating showed much stronger resistance to bovine serum albumin (BSA) adsorption than PEG coating at very thin thickness (∼1nm). However, the BSA resistant efficacy of PEG coating could exceed that of PMEN due to stronger steric repelling effect when the thickness increased to 1.5∼3.3nm. Interestingly, both the PEG and PMEN thick coatings (≈3.6nm) showed ultralow fouling by BSA and bovine plasma fibrinogen (Fg). Moreover, changes in the PEG end group from -OH to -COOH, protein adsorption amount could increase by 10-fold. Importantly, the optimized PMEN and PEG-OH coatings were easily duplicated on other substrates due to universal adhesion of the PDA layer, showed excellent resistance to platelet, bacteria and proteins, and no significant difference in the antifouling performances was observed. These detailed results can explain the reported discrepancy in performances between PEG and zwitterionic polymer coatings by thickness. This facile and substrate-independent coating strategy may benefit the design and manufacture of advanced antifouling biomedical devices and long circulating nanocarriers. STATEMENT OF SIGNIFICANCE Prevention of biofouling is one of the biggest challenges for all biomedical applications. However, it is very difficult to fabricate a highly hydrophilic antifouling coating on inert materials or large devices. In this study, PEG and zwitterion polymers, the most widely investigated polymers with best antifouling performance, are conveniently immobilized on different kinds of substrates from their aqueous solutions by precoating a polydopamine intermediate layer as the universal adhesive and readily re-modifiable surface. Importantly, the coating fabrication and antifouling performance can be monitored and optimized quantitatively by a surface plasma resonance (SPR) system. More significantly, the SPR on-line optimized coatings were successfully duplicated off-line on other substrates, and supported by their excellent antifouling properties.
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Affiliation(s)
- Cheng-Mei Xing
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, Shaanxi, PR China
| | - Fan-Ning Meng
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, Shaanxi, PR China
| | - Miao Quan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, Shaanxi, PR China
| | - Kai Ding
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, Shaanxi, PR China
| | - Yuan Dang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, Shaanxi, PR China
| | - Yong-Kuan Gong
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, Shaanxi, PR China.
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13
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Tanaka M, Kawai S, Iwasaki Y. Well-defined protein immobilization on photo-responsive phosphorylcholine polymer surfaces. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:2021-2033. [PMID: 28803516 DOI: 10.1080/09205063.2017.1366251] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In this study, we propose a new polymer substrate that is able to covalently couple intended proteins and reduce nonspecific protein fouling. Poly[2-methacryloyloxyethyl phosphorylcholine (MPC)-ran-N-methacryloyl-(L)-tyrosinemethylester (MAT)] [P(MPC/MAT)] was synthesized by free-radical polymerization. The photooxidation of the MAT unit in the copolymer was observed under ultraviolet (UV) light at 254 nm. P(MPC/MAT) was spin-coated on silicon (Si) and gold substrates. Without UV irradiation of the polymer-coated surface, P(MPC/MAT) physisorbed on the substrates, and the thickness of the polymer layer was less than 10 nm, regardless of the polymer concentration in the coating solution. In contrast, when the polymer-coated surface was irradiated with UV light, the thickness of the polymer layer could be controlled by changing the polymer concentration of the coating solution. Competitive protein adsorption on P(MPC/MAT) was studied. Bovine serum albumin was first contacted with the surface and later challenged with bovine fibrinogen. On bare gold and Si substrates, a large amount of albumin was adsorbed, and the competitive adsorption of albumin and fibronectin was observed. In contrast, the non-UV-irradiated P(MPC/MAT) surface effectively reduced protein adsorption. Interestingly, on the UV-irradiated P(MPC/MAT) surface, the primary protein preferably bonded, and significantly less secondary protein was adsorbed compared to primary protein. Cell adhesion was also tested on the substrate to clarify the effects of proteins existing on the substrates. On the bare Si surface, many adherent cells were observed, regardless of the protein pretreatment. On the non-UV-irradiated P(MPC/MAT) surface, cell adhesion was effectively reduced along with protein adsorption. Cell adhesion on the UV-irradiated P(MPC/MAT) surface depended strongly on the type of protein that was initially in contact with the surface. We concluded that the desired proteins could be immobilized on the photo-activated P(MPC/MAT) surface while preserving their function. Moreover, competitive protein exchange and multilayer adsorption hardly occurred on the surface.
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Affiliation(s)
- Masako Tanaka
- a Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering , Kansai University , Suita-shi , Japan
| | - Shugo Kawai
- a Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering , Kansai University , Suita-shi , Japan
| | - Yasuhiko Iwasaki
- a Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering , Kansai University , Suita-shi , Japan
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14
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Cell membrane mimetic coating immobilized by mussel-inspired adhesion on commercial ultrafiltration membrane to enhance antifouling performance. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.01.009] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Motamed Fath P, Yazdian F, Jamjah R, Ebrahimi Hosseinzadeh B, Rahimnezhad M, Sahraeian R, Hatamian A. Synthesis and Characterization of PMBN as A Biocompatible Nanopolymer for Bio-Applications. CELL JOURNAL 2017; 19:269-277. [PMID: 28670519 PMCID: PMC5412785 DOI: 10.22074/cellj.2016.4119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 07/17/2016] [Indexed: 11/14/2022]
Abstract
Objective Poly [2-methacryloyloxyethyl phosphoryl choline (MPC)-co-n-buthyl methacrylate
(BMA)-co-p-nitrophenyl-oxycrabonyl poly ethylene glycol-methacrylate (ME-
ONP)] (PMBN), a biocompatible terpolymer, is a unique polymer with applications that
range from drug delivery systems (DDS) to scaffolds and biomedical devices. In this research, we have prepared a monomer of p-nitrophenyl-oxycarbonyl poly (ethylene glycol)
methacrylate (MEONP) to synthesize this polymer. Next, we designed and prepared a
smart, water soluble, amphiphilic PMBN polymer composed of MPC, BMA, and MEONP.
Materials and Methods In this experimental study, we dissolved MPC (4 mmol, 40%
mole fraction), BMA (5 mmol, 50% mole fraction), and MEONP (1 mmol, 10% mole fraction) in 20 ml of dry ethanol in two necked flasks equipped with inlet-outlet gas. The structural characteristics of the synthesized monomer and polymer were determined by Fourier
transform infrared spectroscopy (FT-IR), proton nuclear magnetic resonance (H-NMR),
dynamic light scattering (DLS), gel permeation chromatography (GPC), scanning electron
microscope (SEM), and transmission electron microscope (TEM) analyses for the first
time. We treated the polymer with two different cell lines to determine its biocompatibility.
Results FT-IR and H-NMR analyses confirmed the synthesis of the polymer. The size of
polymer was approximately 40 nm with a molecular weight (MW) of 52 kDa, which would
be excellent for a nano carrier. Microscopic analyses showed that the polymer was rodshaped. This polymer had no toxicity for individual cells.
Conclusion We report here, for the first time, the full properties of the PMBN polymer.
The approximately 40 nm size with an acceptable zeta potential range of -8.47, PDI of 0.1,
and rod-shaped structure indicated adequate parameters of a nanopolymer for nano bioapplications. We used this polymer to design a new smart nano carrier to treat leukemia
stem cells based on a target DDS as a type of bio-application.
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Affiliation(s)
- Puria Motamed Fath
- Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Fatemeh Yazdian
- Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | | | | | - Maede Rahimnezhad
- Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
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Otaka A, Kitagawa K, Nakaoki T, Hirata M, Fukazawa K, Ishihara K, Mahara A, Yamaoka T. Label-Free Separation of Induced Pluripotent Stem Cells with Anti-SSEA-1 Antibody Immobilized Microfluidic Channel. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:1576-1582. [PMID: 28092949 DOI: 10.1021/acs.langmuir.6b04070] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
When induced pluripotent stem cells (iPSCs) are routinely cultured, the obtained cells are a heterogeneous mixture, including feeder cells and partially differentiated cells. Therefore, a purification process is required to use them in a clinical stage. We described a label-free separation of iPSCs using a microfluidic channel. Antibodies against stage-specific embryonic antigen 1 (SSEA-1) was covalently immobilized on the channel coated with a phospholipid polymer. After injection of the heterogeneous cell suspension containing iPSCs, the velocity of cell movement under a liquid flow condition was measured. The mean velocity of the cell movement was 2.1 mm/sec in the unmodified channel, while that in the channel with the immobilized-antibody was 0.4 mm/sec. The eluted cells were fractionated by eluting time. As a result, the SSEA-1 positive iPSCs were mainly contained in later fractions, and the proportion of iPSCs was increased from 43% to 82% as a comparison with the initial cell suspension. These results indicated that iPSCs were selectively separated by the microfluidic channel. This channel is a promising device for label-free separation of iPSCs based on their pluripotent state.
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Affiliation(s)
- Akihisa Otaka
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute , Suita, Osaka 565-8565, Japan
| | - Kazuki Kitagawa
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute , Suita, Osaka 565-8565, Japan
- Department of Materials Chemistry, Ryukoku University , Seta, Otsu 520-2194, Japan
| | - Takahiko Nakaoki
- Department of Materials Chemistry, Ryukoku University , Seta, Otsu 520-2194, Japan
| | - Mitsuhi Hirata
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute , Suita, Osaka 565-8565, Japan
| | - Kyoko Fukazawa
- Department of Materials Engineering, The University of Tokyo , Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazuhiko Ishihara
- Department of Materials Engineering, The University of Tokyo , Bunkyo-ku, Tokyo 113-8656, Japan
| | - Atsushi Mahara
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute , Suita, Osaka 565-8565, Japan
| | - Tetsuji Yamaoka
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute , Suita, Osaka 565-8565, Japan
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Liu Y, Oda H, Inoue Y, Ishihara K. Movement of a Quantum Dot Covered with Cytocompatible and pH-Responsible Phospholipid Polymer Chains under a Cellular Environment. Biomacromolecules 2016; 17:3986-3994. [DOI: 10.1021/acs.biomac.6b01357] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Yihua Liu
- Department of Bioengineering and ‡Department of
Materials Engineering, School
of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Haruka Oda
- Department of Bioengineering and ‡Department of
Materials Engineering, School
of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yuuki Inoue
- Department of Bioengineering and ‡Department of
Materials Engineering, School
of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazuhiko Ishihara
- Department of Bioengineering and ‡Department of
Materials Engineering, School
of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Tanaka M, Iwasaki Y. Photo-assisted generation of phospholipid polymer substrates for regiospecific protein conjugation and control of cell adhesion. Acta Biomater 2016; 40:54-61. [PMID: 26992370 DOI: 10.1016/j.actbio.2016.03.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 02/03/2016] [Accepted: 03/14/2016] [Indexed: 01/18/2023]
Abstract
UNLABELLED Novel photo-reactive phospholipid polymers were synthesized for use in the preparation of nonfouling surfaces with protein conjugation capacity. Poly[2-methacryloyloxyethyl phosphorylcholine (MPC)-ran-N-methacryloyl-(l)-tyrosinemethylester (MAT)] (P(MPC/MAT)) was synthesized by conventional radical polymerization, with the MAT units capable of being oxidized by 254nm UV irradiation. Because of this photo-oxidation, active species such as catechol and quinone were alternately generated in the copolymer. A silicon wafer was subjected to surface modification through spin coating of P(MPC/MAT) from an aqueous solution for use as a model substrate. The surface was then irradiated several times with UV light. The thickness of the polymer layers formed on the Si wafers was influenced by various parameters such as polymer concentration, UV irradiation time, and composition of the MAT units in P(MPC/MAT). Oxidized MAT units were advantageous not only for polymer adhesion to a solid surface but also for protein conjugation with the adhered polymers. The amount of protein immobilized on UV-irradiated P(MPC/MAT) was dependent on the composition of the MAT units in the polymer. Furthermore, it was confirmed that protein immobilization on the polymer occurred through the oxidized MAT units because the protein adsorption was significantly reduced upon blocking these units through pretreatment with glycine. Conjugation of regiospecific protein could also be achieved through the use of a photomask. In addition, nonspecific protein adsorption was reduced on the non-irradiated regions whose surface was covered with physisorbed P(MPC/MAT). Therefore, P(MPC/MAT) can be used in the preparation of nonfouling substrates, which enable micrometer-sized manipulation of proteins through photo-irradiation. Function of proteins immobilized on MPC copolymers was also confirmed by cell adhesion test. As such, photo-reactive MPC copolymers are suitable for performing controlled protein conjugation and preparing polymer-protein hybrid platforms for use in biomedical and diagnostic devices. STATEMENT OF SIGNIFICANCE Novel photo-reactive phospholipid polymers have been synthesized for immobilization on solid surfaces and regiospecific protein conjugation. Tyrosine residues embedded in 2-methacryloyloxyethyl phosphorylcholine (MPC) copolymers could be photo-oxidized, resulting in polymers able to form layers on a solid surface and conjugate with proteins. Moreover, nonspecific biofouling on the surface significantly reduced when the oxidized tyrosine units in the polymer layers were blocked. Upon UV irradiation through a photomask, the UV-exposed tyrosine units were selectively oxidized, forming the only specific regions in which protein conjugation could occur.
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Affiliation(s)
- Masako Tanaka
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita-shi, Osaka 564-8680, Japan
| | - Yasuhiko Iwasaki
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita-shi, Osaka 564-8680, Japan.
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Ishihara K, Chen W, Liu Y, Tsukamoto Y, Inoue Y. Cytocompatible and multifunctional polymeric nanoparticles for transportation of bioactive molecules into and within cells. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2016; 17:300-312. [PMID: 27877883 PMCID: PMC5111563 DOI: 10.1080/14686996.2016.1190257] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 04/21/2016] [Accepted: 05/12/2016] [Indexed: 05/23/2023]
Abstract
Multifunctional polymeric nanoparticles are materials with great potential for a wide range of biomedical applications. For progression in this area of research, unfavorable interactions of these nanoparticles with proteins and cells must be avoided in biological environments, for example, through treatment of the nanoparticle surfaces. Construction of an artificial cell membrane structure based on polymers bearing the zwitterionic phosphorylcholine group can prevent biological reactions at the surface effectively. In addition, certain bioactive molecules can be immobilized on the surface of the polymer to generate enough affinity to capture target biomolecules. Furthermore, entrapment of inorganic nanoparticles inside polymeric matrices enhances the nanoparticle functionality significantly. This review summarizes the preparation and characterization of cytocompatible and multifunctional polymeric nanoparticles; it analyzes the efficiency of their fluorescence function, the nature of the artificial cell membrane structure, and their performance as in-cell devices; and finally, it evaluates both their chemical reactivity and effects in cells.
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Affiliation(s)
- Kazuhiko Ishihara
- Department of Materials Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Weixin Chen
- Department of Materials Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Yihua Liu
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Yuriko Tsukamoto
- Department of Materials Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Yuuki Inoue
- Department of Materials Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan
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Doğaç YI, Teke M. Synthesis and Characterisation of Biocompatible Polymer-Conjugated Magnetic Beads for Enhancement Stability of Urease. Appl Biochem Biotechnol 2016; 179:94-110. [DOI: 10.1007/s12010-016-1981-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 01/04/2016] [Indexed: 10/22/2022]
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Immobilization of inorganic pyrophosphatase on nanodiamond particles retaining its high enzymatic activity. Biointerphases 2015; 10:041005. [DOI: 10.1116/1.4934483] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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22
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Chen W, Inoue Y, Ishihara K. Preparation of photoreactive phospholipid polymer nanoparticles to immobilize and release protein by photoirradiation. Colloids Surf B Biointerfaces 2015; 135:365-370. [DOI: 10.1016/j.colsurfb.2015.07.073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 07/16/2015] [Accepted: 07/27/2015] [Indexed: 12/26/2022]
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23
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Liu Y, Inoue Y, Ishihara K. Surface functionalization of quantum dots with fine-structured pH-sensitive phospholipid polymer chains. Colloids Surf B Biointerfaces 2015; 135:490-496. [PMID: 26283498 DOI: 10.1016/j.colsurfb.2015.08.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 07/31/2015] [Accepted: 08/01/2015] [Indexed: 10/23/2022]
Abstract
To add novel functionality to quantum dots (QDs), we synthesized water-soluble and pH-responsive block-type polymers by reversible addition-fragmentation chain transfer (RAFT) polymerization. The polymers were composed of cytocompatible 2-methacryloyloxyethyl phosphorylcholine (MPC) polymer segments, which contain a small fraction of active ester groups and can be used to conjugate biologically active compounds to the polymer, and pH-responsive poly(2-(N,N-diethylamino) ethyl methacrylate (DEAEMA)) segments. One terminal of the polymer chain had a hydrophobic alkyl group that originated from the RAFT initiator. This hydrophobic group can bind to the hydrophobic layer on the QD surface. A fluorescent dye was conjugated to the polymer chains via the active ester group. The block-type polymers have an amphiphilic nature in aqueous medium. The polymers were thus easily bound to the QD surface upon evaporation of the solvent from a solution containing the block-type polymer and QDs, yielding QD/fluorescence dye-conjugated polymer hybrid nanoparticles. Fluorescence resonance energy transfer (FRET) between the QDs (donors) and the fluorescent dye molecules (acceptors) was used to obtain information on the conformational dynamics of the immobilized polymers. Higher FRET efficiency of the QD/fluorescent dye-conjugated polymer hybrid nanoparticles was observed at pH 7.4 as compared to pH 5.0 due to a stretching-shrinking conformational motion of the poly(DEAEMA) segments in response to changes in pH. We concluded that the block-type MPC polymer-modified nanoparticles could be used to evaluate the pH of cells via FRET fluorescence based on the cytocompatibility of the MPC polymer.
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Affiliation(s)
- Yihua Liu
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yuuki Inoue
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazuhiko Ishihara
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan; Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
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24
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Dang Y, Quan M, Xing CM, Wang YB, Gong YK. Biocompatible and antifouling coating of cell membrane phosphorylcholine and mussel catechol modified multi-arm PEGs. J Mater Chem B 2015; 3:2350-2361. [PMID: 32262065 DOI: 10.1039/c4tb02140a] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The design and easy fabrication of biocompatible and antifouling coatings on different materials are extremely important for biotechnological and biomedical devices. Here we report a substrate-independent biomimetic modification strategy for fabricating a biocompatible and antifouling ultra-thin coating. Cell membrane antifouling phosphorylcholine (PC) and/or mussel adhesive catechol (c) groups are grafted at the amino-ends of an 8-armed poly(ethylene glycol). The PC groups are introduced by grafting a random copolymer bearing both PC and active ester groups. The modified 8-arm PEGs (PEG-2c-23PC, PEG-6c-23PC and PEG-8c) anchor themselves onto various substrates from aqueous solution and form cell outer membrane mimetic surfaces. Static contact angle, atomic force microscope (AFM) and X-ray photoelectron spectra (XPS) measurements confirm the successful fabrication of coatings on polydopamine (PDA) precoated surfaces. Real-time interaction results between proteins/bacteria and the coatings measured by surface plasmon resonance (SPR) technique suggest excellent anti-protein adsorption and short-term anti-bacteria adhesion performance. The long-term bacteria adhesion, platelet and L929 cell attachment results strongly support the SPR conclusions. Furthermore, the cell membrane mimetic and mussel adhesive protein mimetic PEG-2c-23PC shows hardly any toxicity to L929 fibroblasts, and the coating surface demonstrates the best anti-biofouling performance. This PDA-assisted immobilization of PC and/or catechol modified multi-arm PEGs provides a convenient and universal way to produce a biocompatible and fouling-resistant surface with tailor-made functions, which hopefully can be expanded to a wider range of applications based on both structure and surface superiorities.
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Affiliation(s)
- Yuan Dang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, Shaanxi, PR China.
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Bosio VE, Islan GA, Martínez YN, Durán N, Castro GR. Nanodevices for the immobilization of therapeutic enzymes. Crit Rev Biotechnol 2015; 36:447-64. [PMID: 25641329 DOI: 10.3109/07388551.2014.990414] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Therapeutic enzymes are one of the most promising applications of this century in the field of pharmaceutics. Biocatalyst properties can be improved by enzyme immobilization on nano-objects, thereby increasing stability and reusability and also enhancing the targeting to specific tissues and cells. Therapeutic biocatalyst-nanodevice complexes will provide new tools for the diagnosis and treatment of old and newly emerging pathologies. Among the advantages of this approach are the wide span and diverse range of possible materials and biocatalysts that promise to make the matrix-enzyme combination a unique modality for therapeutic delivery. This review focuses on the most significant techniques and nanomaterials used for enzyme immobilization such as metallic superparamagnetic, silica, and polymeric and single-enzyme nanoparticles. Finally, a review of the application of these nanodevices to different pathologies and modes of administration is presented. In short, since therapeutic enzymes constitute a highly promising alternative for treating a variety of pathologies more effectively, this review is aimed at providing the comprehensive summary needed to understand and improve this burgeoning area.
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Affiliation(s)
- Valeria E Bosio
- a Nanobiomaterials Laboratory , Applied Biotechnology Institute (CINDEFI, UNLP-CONICET CCT La Plata) - School of Sciences, Universidad Nacional de La Plata , La Plata , Argentina
| | - Germán A Islan
- a Nanobiomaterials Laboratory , Applied Biotechnology Institute (CINDEFI, UNLP-CONICET CCT La Plata) - School of Sciences, Universidad Nacional de La Plata , La Plata , Argentina
| | - Yanina N Martínez
- a Nanobiomaterials Laboratory , Applied Biotechnology Institute (CINDEFI, UNLP-CONICET CCT La Plata) - School of Sciences, Universidad Nacional de La Plata , La Plata , Argentina
| | - Nelson Durán
- b Center of Natural and Human Science, Universidade Federal do ABC , Santo André , SP , Brazil , and.,c Institute of Chemistry, Biological Chemistry, Laboratory, Universidade Estadual de Campinas, UNICAMP , Campinas , SP , Brazil
| | - Guillermo R Castro
- a Nanobiomaterials Laboratory , Applied Biotechnology Institute (CINDEFI, UNLP-CONICET CCT La Plata) - School of Sciences, Universidad Nacional de La Plata , La Plata , Argentina
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26
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Dang Y, Xing CM, Quan M, Wang YB, Zhang SP, Shi SQ, Gong YK. Substrate independent coating formation and anti-biofouling performance improvement of mussel inspired polydopamine. J Mater Chem B 2015; 3:4181-4190. [DOI: 10.1039/c5tb00341e] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Anti-biofouling performance of mussel inspired polydopamine coating can be improved significantly by simple coordination, oxidation, heating or grafting treatment.
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Affiliation(s)
- Yuan Dang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
| | - Cheng-Mei Xing
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
| | - Miao Quan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
| | - Yan-Bing Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
| | - Shi-Ping Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
| | - Su-Qing Shi
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
| | - Yong-Kuan Gong
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710127
- P. R. China
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Maeta E, Ishihara K. Cross-linkable and water-soluble phospholipid polymer as artificial extracellular matrix. BIOMATERIALS AND BIOMECHANICS IN BIOENGINEERING 2014. [DOI: 10.12989/bme.2014.1.3.163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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28
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Lin X, Ishihara K. Water-soluble polymers bearing phosphorylcholine group and other zwitterionic groups for carrying DNA derivatives. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2014; 25:1461-78. [DOI: 10.1080/09205063.2014.934319] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Cho J, Kushiro K, Teramura Y, Takai M. Lectin-Tagged Fluorescent Polymeric Nanoparticles for Targeting of Sialic Acid on Living Cells. Biomacromolecules 2014; 15:2012-8. [DOI: 10.1021/bm500159r] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jaebum Cho
- Department
of Bioengineering,
Grad10-ate School of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Keiichiro Kushiro
- Department
of Bioengineering,
Grad10-ate School of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yuji Teramura
- Department
of Bioengineering,
Grad10-ate School of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Madoka Takai
- Department
of Bioengineering,
Grad10-ate School of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan
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Lin X, Konno T, Ishihara K. Cell-membrane-permeable and cytocompatible phospholipid polymer nanoprobes conjugated with molecular beacons. Biomacromolecules 2013; 15:150-7. [PMID: 24308501 DOI: 10.1021/bm401430k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
To enable the visualization of the distribution and dynamics of intracellular biomolecules and thereby understand the mechanisms of intracellular bioreactions, we developed a specific functional nanoprobe through the combination of a well-designed, cytocompatible phospholipid polymer and molecular beacons (MBs). A water-soluble, amphiphilic phospholipid polymer, poly[2-methacryloyloxyethyl phosphorylcholine (MPC)-co-n-butyl methacrylate (BMA)-co-N-succinimidyloxycarbonyl tetra(ethylene glycol) methacrylate] (PMBS), was synthesized and conjugated with MBs to form nanoprobes via a chemical reaction between the ester group of N-hydroxysuccinimide and the amine group of the MBs. Surface tension measurements indicated that the polymeric nanoprobes had different conformations in aqueous solution, specifically at a concentration of 1.0 mg/mL. The PMBS, containing the large, hydrophobic BMA, formed polymer aggregates. The carcinoma cells used to test the probes remained 100% viable after incubation with PMBS-MB probes. The polymeric nanoprobes demonstrated not only a high target specificity but also resistance to nonspecific adsorption of proteins compared with unconjugated MBs and were able to penetrate the cytoplasm of the cells, allowing the live imaging of mRNA. In summary, MPC polymer-MB nanoprobes have great potential for practical application for the noninvasive monitoring of intracellular biomolecules and bioreactions in real time.
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Affiliation(s)
- Xiaojie Lin
- Department of Materials Engineering and ‡Department of Bioengineering, School of Engineering, The University of Tokyo , 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Kim D, Herr AE. Protein immobilization techniques for microfluidic assays. BIOMICROFLUIDICS 2013; 7:41501. [PMID: 24003344 PMCID: PMC3747845 DOI: 10.1063/1.4816934] [Citation(s) in RCA: 219] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2013] [Accepted: 07/16/2013] [Indexed: 05/07/2023]
Abstract
Microfluidic systems have shown unequivocal performance improvements over conventional bench-top assays across a range of performance metrics. For example, specific advances have been made in reagent consumption, throughput, integration of multiple assay steps, assay automation, and multiplexing capability. For heterogeneous systems, controlled immobilization of reactants is essential for reliable, sensitive detection of analytes. In most cases, protein immobilization densities are maximized, while native activity and conformation are maintained. Immobilization methods and chemistries vary significantly depending on immobilization surface, protein properties, and specific assay goals. In this review, we present trade-offs considerations for common immobilization surface materials. We overview immobilization methods and chemistries, and discuss studies exemplar of key approaches-here with a specific emphasis on immunoassays and enzymatic reactors. Recent "smart immobilization" methods including the use of light, electrochemical, thermal, and chemical stimuli to attach and detach proteins on demand with precise spatial control are highlighted. Spatially encoded protein immobilization using DNA hybridization for multiplexed assays and reversible protein immobilization surfaces for repeatable assay are introduced as immobilization methods. We also describe multifunctional surface coatings that can perform tasks that were, until recently, relegated to multiple functional coatings. We consider the microfluidics literature from 1997 to present and close with a perspective on future approaches to protein immobilization.
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Affiliation(s)
- Dohyun Kim
- Department of Mechanical Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin-si, Gyeonggi-do 449-728, South Korea
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Redox phospholipid polymer microparticles as doubly functional polymer support for immobilization of enzyme oxidase. Colloids Surf B Biointerfaces 2013; 102:857-63. [DOI: 10.1016/j.colsurfb.2012.09.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Revised: 09/13/2012] [Accepted: 09/17/2012] [Indexed: 11/19/2022]
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Fukazawa K, Li Q, Seeger S, Ishihara K. Direct observation of selective protein capturing on molecular imprinting substrates. Biosens Bioelectron 2013; 40:96-101. [DOI: 10.1016/j.bios.2012.06.033] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Revised: 05/24/2012] [Accepted: 06/14/2012] [Indexed: 10/28/2022]
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Iwasaki Y, Ishihara K. Cell membrane-inspired phospholipid polymers for developing medical devices with excellent biointerfaces. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2012; 13:064101. [PMID: 27877525 PMCID: PMC5099758 DOI: 10.1088/1468-6996/13/6/064101] [Citation(s) in RCA: 207] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 10/18/2012] [Accepted: 09/06/2012] [Indexed: 05/25/2023]
Abstract
This review article describes fundamental aspects of cell membrane-inspired phospholipid polymers and their usefulness in the development of medical devices. Since the early 1990s, polymers composed of 2-methacryloyloxyethyl phosphorylcholine (MPC) units have been considered in the preparation of biomaterials. MPC polymers can provide an artificial cell membrane structure at the surface and serve as excellent biointerfaces between artificial and biological systems. They have also been applied in the surface modification of some medical devices including long-term implantable artificial organs. An MPC polymer biointerface can suppress unfavorable biological reactions such as protein adsorption and cell adhesion - in other words, specific biomolecules immobilized on an MPC polymer surface retain their original functions. MPC polymers are also being increasingly used for creating biointerfaces with artificial cell membrane structures.
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Affiliation(s)
- Yasuhiko Iwasaki
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita-shi, Osaka, 564–8680, Japan
| | - Kazuhiko Ishihara
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113–8656, Japan
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Lin X, Nishio K, Konno T, Ishihara K. The effect of the encapsulation of bacteria in redox phospholipid polymer hydrogels on electron transfer efficiency in living cell-based devices. Biomaterials 2012; 33:8221-7. [DOI: 10.1016/j.biomaterials.2012.08.035] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 08/15/2012] [Indexed: 01/28/2023]
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Gong YK, Liu LP, Messersmith PB. Doubly Biomimetic Catecholic Phosphorylcholine Copolymer: A Platform Strategy for Fabricating Antifouling Surfaces. Macromol Biosci 2012; 12:979-85. [DOI: 10.1002/mabi.201200074] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2012] [Indexed: 11/12/2022]
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Simple surface treatment using amphiphilic phospholipid polymers to obtain wetting and lubricity on polydimethylsiloxane-based substrates. Colloids Surf B Biointerfaces 2012; 97:70-6. [PMID: 22609584 DOI: 10.1016/j.colsurfb.2012.04.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Revised: 04/03/2012] [Accepted: 04/04/2012] [Indexed: 11/23/2022]
Abstract
Simple surface treatment of polydimethylsiloxane (PDMS) substrates was performed using an aqueous-ethanolic solution of amphiphilic phospholipid polymers to reduce the hydrophobic and high friction characteristics of PDMS. The phospholipid polymers, poly(2-methacryloyloxyethyl phosphorylcholine (MPC)-co-2-ethylhexyl methacrylate (EHMA)-co-2-(N,N-dimethylamino)ethyl methacrylate) (PMED) and poly(MPC-co-EHMA) (PMEH) were synthesized, and the effects of the electric charge of the polymer chain on the stability of the attachment to the PDMS surface was investigated. The polymers were dissolved in a mixed solvent of ethanol and water, and the PDMS samples were treated by a simple dipping method using the polymer solution. Pure ethanol as the solvent was ineffective for the attachment of the polymers to the PDMS surface. It was considered that the hydrophobic interactions and electrostatic attraction forces between the polymer chains and the PDMS surface were too weak for efficient interaction in this solvent. On the other hand, the surface wettability and lubricity of PDMS could be improved by treatment with an aqueous-ethanolic solution of PMED. The static contact angle was decreased from 90° to 20° by this treatment, and the dynamic friction coefficient against a Co-Cr ball was decreased by nearly 80% compared with that of the untreated PDMS. The hydrophobic interactions and electrostatic attraction forces generated by PMED were both essential for the stable adsorption of the polymer layer on PDMS. Furthermore, the solubilized state of the polymers affected the adsorption of the polymer. We concluded that the surface of PDMS could be stably modified using aqueous-ethanolic solutions of PMED without the need for pretreatments.
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Golikand AN, Didehban K, Rahimi R. Investigation of the properties of conductive hydrogel composite containing Zn particles. J Appl Polym Sci 2012. [DOI: 10.1002/app.36687] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Gong YK, Winnik FM. Strategies in biomimetic surface engineering of nanoparticles for biomedical applications. NANOSCALE 2012; 4:360-8. [PMID: 22134705 DOI: 10.1039/c1nr11297j] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Engineered nanoparticles (NPs) play an increasingly important role in biomedical sciences and in nanomedicine. Yet, in spite of significant advances, it remains difficult to construct drug-loaded NPs with precisely defined therapeutic effects, in terms of release time and spatial targeting. The body is a highly complex system that imposes multiple physiological and cellular barriers to foreign objects. Upon injection in the blood stream or following oral administation, NPs have to bypass numerous barriers prior to reaching their intended target. A particularly successful design strategy consists in masking the NP to the biological environment by covering it with an outer surface mimicking the composition and functionality of the cell's external membrane. This review describes this biomimetic approach. First, we outline key features of the composition and function of the cell membrane. Then, we present recent developments in the fabrication of molecules that mimic biomolecules present on the cell membrane, such as proteins, peptides, and carbohydrates. We present effective strategies to link such bioactive molecules to the NPs surface and we highlight the power of this approach by presenting some exciting examples of biomimetically engineered NPs useful for multimodal diagnostics and for target-specific drug/gene delivery applications. Finally, critical directions for future research and applications of biomimetic NPs are suggested to the readers.
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Affiliation(s)
- Yong-kuan Gong
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, PR China.
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Sefidbakht Y, Nazari K, Farivar F, Moosavi-Movahedi Z, Sheibani N, Moosavi-Movahedi AA. Microperoxidase-11/NH2-FSM16 as a H2O2-resistant heterogeneous nanobiocatalyst: a suicide-inactivation study. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2012. [DOI: 10.1007/s13738-011-0040-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Ishihara K, Goto Y, Matsuno R. Biomimetic Polymer Nanoparticles Embedding Quantum Dots. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/opl.2011.1505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTTo develop new functional fluorescence probe based on semiconductor nanoparticles, such as quantum dots (QD)s, we investigated polymer particle embedding QDs and covered with artificial cell membrane-biointerface. These nanoparticles were prepared by assembling 2-methacryloyloxyethyl phosphorylcholine (MPC) polymer as a platform and biomolecules immobilized on the surface of the nanoparticles. The fluorescence property of QDs remained after embedding in the polymer nanoparticles. The MPC polymer surface showed high resistance to non-specific cellular uptake due to the phosphorylcholine groups in the side chain. On the other hand, when cell-penetration oligopeptide, octaarginine was immobilized on the surface, they could permeate the membrane of cells effectively and good fluorescence based on QDs could be observed. Cytotoxicity and inflammation reaction was not produced by these nanoparticles even after immobilization of octapeptide. In conclusion, we could obtain stable fluorescence polymer nanoparticles covered with artificial cell membrane, which are useful as an excellent bioimaging probe and as a novel evaluation tool for biomolecular function in the target cells.
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Kameyama N, Matsuda S, Itano O, Ito A, Konno T, Arai T, Ishihara K, Ueda M, Kitagawa Y. Photodynamic therapy using an anti-EGF receptor antibody complexed with verteporfin nanoparticles: a proof of concept study. Cancer Biother Radiopharm 2011; 26:697-704. [PMID: 21861705 DOI: 10.1089/cbr.2011.1027] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
Photodynamic therapy (PDT) is a noninvasive optical treatment method in which the topical or systemic delivery of photosensitizing drugs is followed by irradiation with broadband red light. Coupling photosensitizers with a specific antibody may allow this approach to target specific cancers. This study determines the antitumor efficacy of coupling verteporfin (Visudyne(®)), a hydrophobic polyporphryin oligomer, with an antiepidermal growth factor receptor (anti-EGFR) antibody. Poly[2-methacryloyloxyethyl phosphorylcholine-co-n-butyl methacrylate-co-p-nitrophenylcarbonyloxyethyl methacrylate] (PMBN) was conjugated with an anti-EGFR antibody and mixed with verteporfin (verteporfin-PMBN-antibody complex). Tumor-bearing mice were intravenously injected with the verteporfin-PMBN-antibody complex or verteporfin plus PMBN without the antibody. Irradiation was conducted at 640 nm with a dose of 75 J/cm(2). The fluorescence intensity in A431 cells in vitro was threefold higher after exposure to verteporfin-PMBN-antibody complex than after exposure to verteporfin-PMBN. In A431 tumor-bearing mice, the intratumor concentration of verteporfin was 9.4 times higher than that of the skin, following administration of the verteporfin-PMBN-antibody complex. Tumor size significantly decreased within 8 days in mice treated with verteporfin-PMBN-antibody complex compared with those treated with verteporfin-PMBN. PDT using a PMBN-verteporfin-antibody complex offers a promising anticancer therapy.
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Affiliation(s)
- Noriaki Kameyama
- Department of Surgery, International Goodwill Hospital, Yokohama, Japan
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Ohto-Fujita E, Konno T, Shimizu M, Ishihara K, Sugitate T, Miyake J, Yoshimura K, Taniwaki K, Sakurai T, Hasebe Y, Atomi Y. Hydrolyzed eggshell membrane immobilized on phosphorylcholine polymer supplies extracellular matrix environment for human dermal fibroblasts. Cell Tissue Res 2011; 345:177-90. [PMID: 21597915 PMCID: PMC3132421 DOI: 10.1007/s00441-011-1172-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2010] [Accepted: 04/05/2011] [Indexed: 12/20/2022]
Abstract
We have found that a water-soluble alkaline-digested form of eggshell membrane (ASESM) can provide an extracellular matrix (ECM) environment for human dermal fibroblast cells (HDF) in vitro. Avian eggshell membrane (ESM) has a fibrous-meshwork structure and has long been utilized as a Chinese medicine for recovery from burn injuries and wounds in Asian countries. Therefore, ESM is expected to provide an excellent natural material for biomedical use. However, such applications have been hampered by the insolubility of ESM proteins. We have used a recently developed artificial cell membrane biointerface, 2-methacryloyloxyethyl phosphorylcholine polymer (PMBN) to immobilize ASESM proteins. The surface shows a fibrous structure under the atomic force microscope, and adhesion of HDF to ASESM is ASESM-dose-dependent. Quantitative mRNA analysis has revealed that the expression of type III collagen, matrix metalloproteinase-2, and decorin mRNAs is more than two-fold higher when HDF come into contact with a lower dose ASESM proteins immobilized on PMBN surface. A particle-exclusion assay with fixed erythrocytes has visualized secreted water-binding molecules around the cells. Thus, HDF seems to possess an ECM environment on the newly designed PMBN-ASESM surface, and future applications of the ASESM-PMBN system for biomedical use should be of great interest.
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Affiliation(s)
- Eri Ohto-Fujita
- Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
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Mori T, Kubo T, Konno TJ, Hosoya K. Polymers of 2-methacryloyloxyethyl phosphorylcholine truly work as cell membrane mimic? Colloids Surf B Biointerfaces 2011; 84:181-6. [DOI: 10.1016/j.colsurfb.2010.12.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Revised: 12/26/2010] [Accepted: 12/28/2010] [Indexed: 10/18/2022]
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Nishizawa K, Takai M, Ishihara K. A bioconjugated phospholipid polymer biointerface with nanometer-scaled structure for highly sensitive immunoassays. Methods Mol Biol 2011; 751:491-502. [PMID: 21674351 DOI: 10.1007/978-1-61779-151-2_31] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
This method relates to the preparation of a phospholipid polymer platform and the immobilization of an antibody as a bioaffinity ligand onto the platform to construct a biointerface for highly sensitive immunoassays. The specific phospholipid polymer used in this work is poly[2-methacryloyloxyethyl phosphorylcholine (MPC)-co-n-butyl methacrylate (BMA)-co-p-nitrophenyloxycarbonyl poly(ethylene glycol) methacrylate (MEONP)] (PMBN). The PMBN surface could immobilize specific antibodies through covalent chemical bonding by the reaction between MEONP units and amino groups in the antibody. In addition, the PMBN surface could prevent nonspecific protein adsorption from an analyte sample without the use of blocking reagents based on the fundamental properties of the MPC units. Furthermore, a nanometer-scaled particle deposition surface is constructed with PMBN by an electrospray deposition method to enhance the sensitivity by increasing the overall surface area of the biointerface.
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Stabilization of phospholipid polymer surface with three-dimensional nanometer-scaled structure for highly sensitive immunoassay. Colloids Surf B Biointerfaces 2010; 77:263-9. [DOI: 10.1016/j.colsurfb.2010.02.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2009] [Revised: 02/01/2010] [Accepted: 02/03/2010] [Indexed: 11/20/2022]
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Ishihara K, Goto Y, Takai M, Matsuno R, Inoue Y, Konno T. Novel polymer biomaterials and interfaces inspired from cell membrane functions. Biochim Biophys Acta Gen Subj 2010; 1810:268-75. [PMID: 20435095 DOI: 10.1016/j.bbagen.2010.04.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2009] [Revised: 04/06/2010] [Accepted: 04/16/2010] [Indexed: 11/27/2022]
Abstract
BACKGROUND Materials with excellent biocompatibility on interfaces between artificial system and biological system are needed to develop any equipments and devices in bioscience, bioengineering and medicinal science. Suppression of unfavorable biological response on the interface is most important for understanding real functions of biomolecules on the surface. So, we should design and prepare such biomaterials. SCOOP OF REVIEW: One of the best ways to design the biomaterials is generated from mimicking a cell membrane structure. It is composed of a phospholipid bilayered membrane and embedded proteins and polysaccharides. The surface of the cell membrane-like structure is constructed artificially by molecular integration of phospholipid polymer as platform and conjugated biomolecules. Here, it is introduced as the effectiveness of biointerface with highly biological functions observed on artificial cell membrane structure. MAJOR CONCLUSIONS Reduction of nonspecific protein adsorption is essential for suppression of unfavorable bioresponse and achievement of versatile biomedical applications. Simultaneously, bioconjugation of biomolecules on the phospholipid polymer platform is crucial for a high-performance interface. GENERAL SIGNIFICANCE The biointerfaces with both biocompatibility and biofunctionality based on biomolecules must be installed on advanced devices, which are applied in the fields of nanobioscience and nanomedicine. This article is part of a Special Issue entitled Nanotechnologies - Emerging Applications in Biomedicine.
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Affiliation(s)
- Kazuhiko Ishihara
- Department of Materials Engineering, School of Engineering, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan.
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Che YJ, Tan Y, Cao J, Xin H, Xu GY. Synthesis and properties of hydrophobically modified acrylamide-based polysulfobetaines. Polym Bull (Berl) 2010. [DOI: 10.1007/s00289-010-0255-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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