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Wytrwal M, Sekuła-Stryjewska M, Pomorska A, Oclon E, Zuba-Surma E, Zapotoczny S, Szczubiałka K. Cellular Response to Bone Morphogenetic Proteins-2 and -7 Covalently Bound to Photocrosslinked Heparin-Diazoresin Multilayer. Biomolecules 2023; 13:biom13050842. [PMID: 37238712 DOI: 10.3390/biom13050842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/22/2023] [Accepted: 05/03/2023] [Indexed: 05/28/2023] Open
Abstract
Despite the plethora of research that exists on recombinant human bone morphogenetic protein-2 and -7 (rhBMP-2 and rhBMP-7) and has been clinically approved, there is still a need to gain information that would allow for their more rational use in bone implantology. The clinical application of supra-physiological dosages of these superactive molecules causes many serious adverse effects. At the cellular level, they play a role in osteogenesis and cellular adhesion, migration, and proliferation around the implant. Therefore, in this work, we investigated the role of the covalent binding of rhBMP-2 and rhBMP-7 separately and in combination with ultrathin multilayers composed of heparin and diazoresin in stem cells. In the first step, we optimized the protein deposition conditions via quartz crystal microbalance (QCM). Then, atomic force microscopy (AFM) and enzyme-linked immunosorbent assay (ELISA) were used to analyze protein-substrate interactions. The effect of the protein binding on the initial cell adhesion, migration, and short-term expression of osteogenesis markers was tested. In the presence of both proteins, cell flattening and adhesion became more prominent, resulting in limited motility. However, the early osteogenic marker expression significantly increased compared to the single protein systems. The presence of single proteins resulted in the elongation of cells, which promoted their migration activity.
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Affiliation(s)
- Magdalena Wytrwal
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Krakow, Poland
| | | | - Agata Pomorska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland
| | - Ewa Oclon
- Laboratory of Recombinant Proteins Production, Centre for Experimental and Innovative Medicine, University of Agriculture in Krakow, 1C Redzina Street, 30-248 Krakow, Poland
| | - Ewa Zuba-Surma
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland
| | - Szczepan Zapotoczny
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Krakow, Poland
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Krzysztof Szczubiałka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
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2
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He X, Ahmed A, Guo S, Kang C, Shen Y, Cong H, Yu B. Preparation and application of urea-based derivatized β-cyclodextrin chiral stationary phase based on diazotized silica microspheres. J Chromatogr A 2022; 1669:462932. [DOI: 10.1016/j.chroma.2022.462932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 02/27/2022] [Accepted: 03/02/2022] [Indexed: 11/25/2022]
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3
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Cong H, Wang F, Chen Y, Hu H, Chen X, Shen Y, Yu B. Thermally Responsive Anti‐Protein Adsorption Coated Capillary for Electrophoretic Analysis of Proteins. ChemistrySelect 2020. [DOI: 10.1002/slct.202002267] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hailin Cong
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering; College of Materials Science and Engineering Qingdao University Qingdao 266071 China
- State Key Laboratory of Bio-Fibres and Eco-Textiles Qingdao University Qingdao 266071 China
| | - Fang Wang
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering; College of Materials Science and Engineering Qingdao University Qingdao 266071 China
| | - Yao Chen
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering; College of Materials Science and Engineering Qingdao University Qingdao 266071 China
| | - Hao Hu
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering; College of Materials Science and Engineering Qingdao University Qingdao 266071 China
| | - Xin Chen
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering; College of Materials Science and Engineering Qingdao University Qingdao 266071 China
| | - Youqing Shen
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering; College of Materials Science and Engineering Qingdao University Qingdao 266071 China
- Centre for Bio nanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological Engineering Zhejiang University Hangzhou 310027 China
| | - Bing Yu
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering; College of Materials Science and Engineering Qingdao University Qingdao 266071 China
- State Key Laboratory of Bio-Fibres and Eco-Textiles Qingdao University Qingdao 266071 China
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4
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Gao L, Zhang H, Yu B, Li W, Gao F, Zhang K, Zhang H, Shen Y, Cong H. Chitosan composite hydrogels cross-linked by multifunctional diazo resin as antibacterial dressings for improved wound healing. J Biomed Mater Res A 2020; 108:1890-1898. [PMID: 32314510 DOI: 10.1002/jbm.a.36952] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 03/29/2020] [Indexed: 12/19/2022]
Abstract
Skin lesions and injuries can increase the risk of pathogen infections. Developing efficacious wound dressings could effectively prevent bacterial infection and accelerate wound healing. Herein, we developed chitosan composite hydrogels cross-linked by multifunctional diazo resin (DR) as antibacterial dressings for improved wound healing. The composite hydrogels were in situ formed by electrostatic interactions, chelation interactions, and covalent bonds between carboxylated chitosan and DR under ultraviolet assisted without small photosensitizer. The resultant hydrogels (noted as DR-CCH) showed good stability at different DR concentrations in physiological buffers. The antibacterial assays showed the DR-CCH could inhibit and kill Escherichia coli and Staphylococcus aureus. What is more, our hydrogels could accelerate wound healing in vivo. The present study demonstrates this composite DR-CCH with trace zinc has potential for accelerated wound healing.
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Affiliation(s)
- Lilong Gao
- Institute of Biomedical Materials and Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, China
| | - Hui Zhang
- Institute of Biomedical Materials and Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, China
| | - Bing Yu
- Institute of Biomedical Materials and Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, China.,State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, China
| | - Wenlong Li
- Institute of Biomedical Materials and Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, China
| | - Fei Gao
- Institute of Biomedical Materials and Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, China
| | - Ke Zhang
- Institute of Biomedical Materials and Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, China
| | - Hongbo Zhang
- Institute of Biomedical Materials and Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, China
| | - Youqing Shen
- Institute of Biomedical Materials and Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, China.,Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Hailin Cong
- Institute of Biomedical Materials and Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, China.,State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, China
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5
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Yu B, Zhang S, Li G, Cong H. Light-assisted preparation of vancomycin chiral stationary phase based on diazotized silica and its enantioseparation evaluation by high-performance liquid chromatography. Talanta 2018; 182:171-177. [DOI: 10.1016/j.talanta.2018.01.066] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 01/12/2018] [Accepted: 01/29/2018] [Indexed: 12/18/2022]
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6
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Tang Q, Yu B, Gao L, Cong H, Zhang S. Light-assisted preparation of a cyclodextrin-based chiral stationary phase and its separation performance in liquid chromatography. NEW J CHEM 2018. [DOI: 10.1039/c7nj02911j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A facile light-assisted preparation procedure of a cyclodextrin-based chiral stationary phase was developed for enantioseparations in HPLC.
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Affiliation(s)
- Qi Tang
- Institute of Biomedical Materials and Engineering
- College of Chemistry and Chemical Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Bing Yu
- Institute of Biomedical Materials and Engineering
- College of Chemistry and Chemical Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Lilong Gao
- Institute of Biomedical Materials and Engineering
- College of Chemistry and Chemical Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Hailin Cong
- Institute of Biomedical Materials and Engineering
- College of Chemistry and Chemical Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Shuai Zhang
- Institute of Biomedical Materials and Engineering
- College of Chemistry and Chemical Engineering
- Qingdao University
- Qingdao 266071
- China
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7
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Cong H, Yu B, Tian C, Zhang S, Yuan H. Synthesis of monodisperse silica microspheres and modification with diazoresin for mixed-mode ultra high performance liquid chromatography separations. J Sep Sci 2017; 40:4320-4328. [DOI: 10.1002/jssc.201700382] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 08/30/2017] [Accepted: 09/02/2017] [Indexed: 01/09/2023]
Affiliation(s)
- Hailin Cong
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering, Qingdao University; Qingdao China
- Laboratory for New Fiber Materials and Modern Textile; Growing Base for State Key Laboratory; College of Materials Science and Engineering, Qingdao University; Qingdao China
| | - Bing Yu
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering, Qingdao University; Qingdao China
- Laboratory for New Fiber Materials and Modern Textile; Growing Base for State Key Laboratory; College of Materials Science and Engineering, Qingdao University; Qingdao China
| | - Chao Tian
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering, Qingdao University; Qingdao China
| | - Shuai Zhang
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering, Qingdao University; Qingdao China
| | - Hua Yuan
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering, Qingdao University; Qingdao China
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8
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Yu B, Wang M, Cong H, Li G. A covalent capillary coating of diazoresin and polyglycerol dendrimer for protein analysis using capillary electrophoresis. Electrophoresis 2017; 38:3104-3110. [DOI: 10.1002/elps.201700249] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 08/07/2017] [Accepted: 08/22/2017] [Indexed: 01/11/2023]
Affiliation(s)
- Bing Yu
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering, Qingdao University; Qingdao P. R. China
- Laboratory for New Fiber Materials and Modern Textile; Growing Base for State Key Laboratory; College of Materials Science and Engineering, Qingdao University; Qingdao P. R. China
| | - Minghong Wang
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering, Qingdao University; Qingdao P. R. China
| | - Hailin Cong
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering, Qingdao University; Qingdao P. R. China
- Laboratory for New Fiber Materials and Modern Textile; Growing Base for State Key Laboratory; College of Materials Science and Engineering, Qingdao University; Qingdao P. R. China
| | - Guoling Li
- Institute of Biomedical Materials and Engineering; College of Chemistry and Chemical Engineering, Qingdao University; Qingdao P. R. China
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9
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Self-assembled covalent capillary coating of diazoresin/carboxyl fullerene for analysis of proteins by capillary electrophoresis and a comparison with diazoresin/graphene oxide coating. J Chromatogr A 2016; 1437:226-233. [DOI: 10.1016/j.chroma.2016.02.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 01/29/2016] [Accepted: 02/01/2016] [Indexed: 11/18/2022]
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10
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Self-assembled and covalently linked capillary coating of diazoresin and cyclodextrin-derived dendrimer for analysis of proteins by capillary electrophoresis. Talanta 2016; 152:76-81. [PMID: 26992496 DOI: 10.1016/j.talanta.2016.01.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 01/19/2016] [Accepted: 01/23/2016] [Indexed: 01/20/2023]
Abstract
Self-assembled and covalently linked capillary coatings of cyclodextrin-derived (CD) dendrimer were prepared using photosensitive diazoresin (DR) as a coupling agent. Layer by layer (LBL) self-assembled DR/CD-dendrimer coatings based on ionic bonding was fabricated first on the inner surface of capillary, and subsequently converted into covalent bonding after treatment with UV light through a unique photochemistry reaction of DR. Protein adsorption on the inner surface of capillary was suppressed by the DR/CD-dendrimer coating, and thus a baseline separation of lysozyme (Lys), myoglobin (Mb), bovine serum albumin (BSA) and ribonuclease A (RNase A) was achieved using capillary electrophoresis (CE). Compared with the bare capillary, the DR/CD-dendrimer covalently linked capillary coatings showed excellent protein separation performance with good stability and repeatability. Because of the replacement of highly toxic and moisture sensitive silane coupling agent by DR in the covalent coating preparation, this method may provide an environmentally friendly and simple way to prepare the covalently coated capillaries for CE.
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11
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Shaker MA, Younes HM. Photo-irradiation paradigm: Mapping a remarkable facile technique used for advanced drug, gene and cell delivery. J Control Release 2015; 217:10-26. [PMID: 26184048 DOI: 10.1016/j.jconrel.2015.07.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 07/02/2015] [Accepted: 07/03/2015] [Indexed: 12/13/2022]
Abstract
Undoubtedly, the progression of photo-irradiation technique has provided a smart engineering tool for the state-of-the-art biomaterials that guide the biomedical and therapeutic domains for promoting the modern pharmaceutical industry. Many investigators had exploited such a potential technique to create/ameliorate numerous pharmaceutical carriers. These carriers show promising applications that vary from small drug to therapeutic protein delivery and from gene to living cell encapsulation design. Harmony between the properties of precisely engineered precursors and the formed network structure broadens the investigator's intellect for both brilliant creations and effective applications. As well, controlling photo-curing at the formulation level, through manipulating the absorption of light stimuli, photoinitiator system and photo-responsive precursor, facilitates the exploration of novel distinctive biomaterials. Discussion of utilizing different photo-curing procedures in designing/formulation of different pharmaceutical carriers is the main emphasis of this review. In addition, recent applications of these intelligent techniques in targeted, controlled, and sustained drug delivery with understanding of photo-irradiation concept and mechanism are illustrated.
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Affiliation(s)
- Mohamed A Shaker
- Pharmaceutics Department, College of Pharmacy, PO Box 30040, Taibah University, Al Madina Al Munawara, Saudi Arabia; Pharmaceutics Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt.
| | - Husam M Younes
- Pharmaceutics & Polymeric Drug Delivery Research Lab (PPDDRL), College of Pharmacy, PO Box 2713, Qatar University, Doha, Qatar
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Mikulska A, Filipowska J, Osyczka AM, Nowakowska M, Szczubiałka K. Osteoinductive activity of insulin-functionalized cell culture surfaces obtained using diazonium chemistry. Front Chem 2015; 2:117. [PMID: 25629028 PMCID: PMC4292785 DOI: 10.3389/fchem.2014.00117] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 12/24/2014] [Indexed: 11/23/2022] Open
Abstract
Polymeric surfaces suitable for cell culture (DR/Pec) were constructed from diazoresin (DR) and pectin (Pec) in a form of ultrathin films using the layer-by-layer (LbL) technique. The surfaces were functionalized with insulin using diazonium chemistry. Such functionalized surfaces were used to culture human mesenchymal stem cells (hMSCs) to assess their suitability for bone tissue engineering and regeneration. The activity of insulin immobilized on the surfaces (DR/Pec/Ins) was compared to that of insulin dissolved in the culture medium. Human MSC grown on insulin-immobilized DR/Pec surfaces displayed increased proliferation and higher osteogenic activity. The latter was determined by means of alkaline phosphatase (ALP) activity, which increases at early stages of osteoblasts differentiation. Insulin dissolved in the culture medium did not stimulate cell proliferation and its osteogenic activity was significantly lower. Addition of recombinant human bone morphogenetic protein 2 (rhBMP-2) to the culture medium further increased ALP activity in hMSCs indicating additive osteogenic action of immobilized insulin and rhBMP-2.
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Affiliation(s)
- Anna Mikulska
- Nanotechnology of Polymers and Biomaterials, Faculty of Chemistry, Jagiellonian University Kraków, Poland
| | - Joanna Filipowska
- Department of Biology and Cell Imaging, Faculty of Biology and Earth Sciences, Jagiellonian University Kraków, Poland
| | - Anna M Osyczka
- Department of Biology and Cell Imaging, Faculty of Biology and Earth Sciences, Jagiellonian University Kraków, Poland
| | - Maria Nowakowska
- Nanotechnology of Polymers and Biomaterials, Faculty of Chemistry, Jagiellonian University Kraków, Poland
| | - Krzysztof Szczubiałka
- Nanotechnology of Polymers and Biomaterials, Faculty of Chemistry, Jagiellonian University Kraków, Poland
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13
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Mikulska A, Filipowska J, Osyczka AM, Szuwarzyński M, Nowakowska M, Szczubiałka K. Photocrosslinked ultrathin anionic polysaccharide supports for accelerated growth of human mesenchymal stem cells. Cell Prolif 2014; 47:516-26. [PMID: 24961895 DOI: 10.1111/cpr.12118] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 04/30/2014] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVES Properties of cell culture supports obtained from ultrathin multilayer films containing anionic natural polysaccharides (PSacs) and a synthetic polycation were studied. MATERIALS AND METHODS Supports were prepared via a layer-by-layer (LbL) self-assembly deposition method. Polymers used were: heparin (Hep), chondroitin sulphate (CS), hyaluronic acid (HA), and ι-carrageenan (Car) as polyanions, and diazoresin (DR) as a polycation. PSac layers were crosslinked with DR layers by irradiation with UV light absorbed by DR resin. RESULTS DR/PSac films are very efficient cell culture growth supports as found from experiments with human mesenchymal stem cells (hMSCs). Irradiation of the films resulted in changing zeta potential of outermost layers of both DR and PSac to more negative values, and in increased film hydrophobicity, as found from the contact angle measurements. Photocrosslinking of the supports led to their increased stability. CONCLUSIONS The supports allow for obtaining intact cell monolayers faster than when typical polystyrene tissue culture plates are used. Moreover, these monolayers spontaneously detach permitting formation of new cell layers on these surfaces relatively early during culture, compared to cells cultured on commonly used tissue culture plastic.
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Affiliation(s)
- A Mikulska
- Faculty of Chemistry, Jagiellonian University, 30-387, Kraków, Poland
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14
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Shukla A, Almeida B. Advances in cellular and tissue engineering using layer-by-layer assembly. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2014; 6:411-21. [PMID: 24723385 DOI: 10.1002/wnan.1269] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 02/10/2014] [Accepted: 02/27/2014] [Indexed: 11/05/2022]
Abstract
Layer-by-layer (LbL) assembly is a self-assembly technique used to develop multilayer films based on complementary interactions between film components. These multilayer films have had a significant impact on the fields of cellular and tissue engineering. The aim of cellular engineering is to understand and control cell behavior, which not only impacts applications in regenerative medicine but also other biomedical therapies that rely on cell interactions with biomaterials, including treatments for autoimmune disorders and cancer. Tissue engineering approaches to tissue repair and regeneration utilize three-dimensional biomaterial scaffolds that interact favorably with cells. Cellular engineering studies can better inform the design of these scaffolds. The ease of tuning the chemical and mechanical properties of LbL films, the ability to coat a variety of medically relevant substrates (including cell culture surfaces and scaffolds), and the wide range of species that can be incorporated into these films (ranging from proteins to small molecules) have led to the successful use of LbL assembly for a variety of cellular and tissue engineering applications. The films used in these biomedical applications can be divided into those that release therapeutics, often with controlled stimuli-responsive release behavior, and those that act without releasing these agents.
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Affiliation(s)
- Anita Shukla
- Center for Biomedical Engineering, Institute for Molecular and Nanoscale Innovation, School of Engineering, Brown University, Providence, RI, USA
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Yi Q, Sukhorukov GB. Externally triggered dual function of complex microcapsules. ACS NANO 2013; 7:8693-8705. [PMID: 24083649 DOI: 10.1021/nn4029772] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
By introducing UV-sensitive chemical groups causing different potential response as building blocks, fabricated LbL capsules can be endowed with dual UV-responsive properties in specific layers. One block is responsible for fast capsule sealing and the other for longer term capsule swelling and rupture. Therefore, the multifunction of these capsules could be activated selectively when exposed to external UV light with suitable wavelengths. In this work, dual-functional complex microcapsules (PDADMAC/PAZO)4-(DAR/Nafion)2 containing both diazonium and aozbenzene groups were proposed as clear examples to realize a time-dependent UV response for successive encapsulation and release. Upon exposure to UV light, the DAR/Nafion layers underwent a rapid in situ cross-linking and hence to seal the capsule shells through diazonium-related photolysis. Then further gradual shell swelling was followed by realignment of azobenzene molecules in PDADMAC/PAZO layers. Fluorescent polymers were consequently studied as cargo substances. Results indicated that continuous UV light triggered rapid cargo encapsulation over minutes time scale and gradual release with continuous irradiation over hours.
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Affiliation(s)
- Qiangying Yi
- School of Engineering and Materials Science, Queen Mary, University of London , Mile End Road, London, E1 4NS United Kingdom
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16
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Gupta B, Tummalapalli M, Deopura B, Alam MS. Functionalization of pectin by periodate oxidation. Carbohydr Polym 2013; 98:1160-5. [DOI: 10.1016/j.carbpol.2013.06.069] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 06/20/2013] [Accepted: 06/28/2013] [Indexed: 11/27/2022]
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17
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Yi Q, Sukhorukov GB. Photolysis triggered sealing of multilayer capsules to entrap small molecules. ACS APPLIED MATERIALS & INTERFACES 2013; 5:6723-6731. [PMID: 23802998 DOI: 10.1021/am4016389] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Novel microcapsule systems containing UV-responsive diazonium groups were fabricated as microcontainers for cargo substance encapsulation by using a layer-by-layer (LbL) assembly technique. Upon direct exposure to UV light with a wavelength of approximately 380 nm, the diazonium groups of diazoresion (DAR) rapidly reacted with sulfonate or diazo-sulfonate groups of counterpart polyelectrolytes, which converted electrostatic interactions to covalent bonds, demonstrating an effective in situ cross-linking within multilayers via photolysis. Such chemical transition eliminated the paired ionic groups, therefore generating more hydrophobic multilayer shells, offering a unique approach to seal the porous polyelectrolyte capsule shells. Fluorescent molecule rhodamine B (RhB) was consequently studied as a typical example for small molecule encapsulation. Results indicated that the dye was remarkably retained within the microcapsules after UV-triggered capsule shell sealing.
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Affiliation(s)
- Qiangying Yi
- School of Engineering and Materials Science, Queen Mary, University of London, Mile End Road, London, E1 4NS, United Kingdom.
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18
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Miyazaki CM, Riul A, Dos Santos DS, Ferreira M, Constantino CJL, Pereira-da-Silva MA, Paupitz R, Galvão DS, Oliveira ON. Bending of layer-by-layer films driven by an external magnetic field. Int J Mol Sci 2013; 14:12953-69. [PMID: 23797657 PMCID: PMC3742167 DOI: 10.3390/ijms140712953] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 05/18/2013] [Accepted: 06/08/2013] [Indexed: 11/16/2022] Open
Abstract
We report on optimized architectures containing layer-by-layer (LbL) films of natural rubber latex (NRL), carboxymethyl-chitosan (CMC) and magnetite (Fe3O4) nanoparticles (MNPs) deposited on flexible substrates, which could be easily bent by an external magnetic field. The mechanical response depended on the number of deposited layers and was explained semi-quantitatively with a fully atomistic model, where the LbL film was represented as superposing layers of hexagonal graphene-like atomic arrangements deposited on a stiffer substrate. The bending with no direct current or voltage being applied to a supramolecular structure containing biocompatible and antimicrobial materials represents a proof-of-principle experiment that is promising for tissue engineering applications in biomedicine.
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Affiliation(s)
- Celina M. Miyazaki
- Center for Natural and Human Sciences, Federal University of ABC, 09210-170 Santo André, SP, Brazil; E-Mails: (C.M.M.); (M.F.)
| | - Antonio Riul
- Applied Physics Department, Gleb Wataghin Institute of Physics, State University of Campinas, UNICAMP, C.P. 6165, 13083-970 Campinas, SP, Brazil; E-Mails: (A.R.); (D.S.G.)
| | - David S. Dos Santos
- São Carlos Institute of Physics, University of São Paulo, CP 369, 13560-970 São Carlos, SP, Brazil; E-Mails: (D.S.D.S.); (M.A.P.-S.)
| | - Mariselma Ferreira
- Center for Natural and Human Sciences, Federal University of ABC, 09210-170 Santo André, SP, Brazil; E-Mails: (C.M.M.); (M.F.)
| | - Carlos J. L. Constantino
- Faculty of Science and Technology, São Paulo State University, UNESP, 19060-900 Presidente Prudente, SP, Brazil; E-Mail:
| | - Marcelo A. Pereira-da-Silva
- São Carlos Institute of Physics, University of São Paulo, CP 369, 13560-970 São Carlos, SP, Brazil; E-Mails: (D.S.D.S.); (M.A.P.-S.)
- Paulista University Center, UNICEP, 13563-470 São Carlos, SP, Brazil
| | - Ricardo Paupitz
- Physics Department, IGCE, São Paulo State University, UNESP, 13506-900 Rio Claro, SP, Brazil; E-Mail:
| | - Douglas S. Galvão
- Applied Physics Department, Gleb Wataghin Institute of Physics, State University of Campinas, UNICAMP, C.P. 6165, 13083-970 Campinas, SP, Brazil; E-Mails: (A.R.); (D.S.G.)
| | - Osvaldo N. Oliveira
- São Carlos Institute of Physics, University of São Paulo, CP 369, 13560-970 São Carlos, SP, Brazil; E-Mails: (D.S.D.S.); (M.A.P.-S.)
- Author to whom correspondence should be addressed; E-Mail:; Tel.: +55-16-3373-9825 (ext. 217); Fax: +55-16-3371-5365
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Yu B, Cui W, Cong H, Jiao M, Liu P, Yang S. A novel diazoresin/polyethylene glycol covalent capillary coating for analysis of proteins by capillary electrophoresis. RSC Adv 2013. [DOI: 10.1039/c3ra23328f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Yu B, Liu P, Cong H, Tang J, Zhang L. Novel covalently coated diazoresin/polyvinyl alcohol capillary column for the analysis of proteins by capillary electrophoresis. Electrophoresis 2012; 33:3066-72. [PMID: 22996666 DOI: 10.1002/elps.201200245] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Revised: 07/16/2012] [Accepted: 07/17/2012] [Indexed: 12/28/2022]
Abstract
A novel method for the preparation of covalently linked capillary coatings of PVA was demonstrated using photosensitive diazoresin (DR) as coupling agents. Layer-by-layer self-assembly film of DR and PVA based on hydrogen bonding was first fabricated on the inner wall of capillary, then the hydrogen bonding was converted into covalent bonding after treatment with UV light through the unique photochemistry reaction of DR. The covalently bonded coatings suppressed basic protein adsorption on the inner surface of capillary, and thus a baseline separation of lysozyme, cytochrome c and BSA was achieved using CE. Compared with bare capillary or noncovalently bonded DR/PVA coatings, the covalently linked DR/PVA capillary coatings not only improved the CE separation performance for proteins, but also exhibited good stability and repeatability. Due to the replacement of highly toxic and moisture-sensitive silane coupling agent by DR in the covalent coating preparation, this method may provide a green and easy way to make the covalently coated capillaries for CE.
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Affiliation(s)
- Bing Yu
- College of Chemical and Environmental Engineering, Qingdao University, Qingdao, P. R. China.
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