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Zhuang Z, Cheng D, Han B, Li R, Shen Y, Wang M, Wang Z, Ding W, Chen G, Zhou Y, Jing T. Preparation of double-system imprinted polymer-coated multi-walled carbon nanotubes and their application in simultaneous determination of thyroid-disrupting chemicals in dust samples. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 907:167858. [PMID: 37863228 DOI: 10.1016/j.scitotenv.2023.167858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/11/2023] [Accepted: 10/13/2023] [Indexed: 10/22/2023]
Abstract
Dust ingestion is a significant route of human exposure to thyroid-disrupting chemicals (TDCs), and simultaneous determination of multi-contaminants is a great challenge for environmental monitoring. In this study, molecularly imprinted polymer-coated multi-walled carbon nanotubes using thyroxine as the template were synthesized for highly selective TDCs capture. This polymer was prepared by integrating the atom transfer radical polymerization using 2-(3-indol-yl)ethylmethacrylamide as the monomer with the self-polymerization of dopamine. Construction of double-system imprinted cavities could significantly improve their selective recognition performance for TDCs and the coincidence rate reached 88.5 %. The prepared polymers were applied as the solid phase extraction adsorbent to simultaneously determine 7 groups of 35 TDCs. The proposed method showed wide linear range (0.25-1000 ng L-1), low limits of detection (0.02-0.23 ng L-1) and acceptable recoveries (81.8 %-103.5 %). The occurrence and distribution of TDCs were then studied in indoor dust samples (n = 65) collected from four cities in China. We found that tetrabromobisphenol A was the predominant compound and perfluorinated compounds were the most abundant TDCs. In addition, the distribution ratio of TDCs varied between regions. This study provides an efficient technology for direct exposure assessment of multi-contaminants.
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Affiliation(s)
- Zhijia Zhuang
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Danqi Cheng
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Bin Han
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Ruifang Li
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Yang Shen
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Mengyi Wang
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Zhu Wang
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Wenping Ding
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Guang Chen
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Yikai Zhou
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China
| | - Tao Jing
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei 430030, China.
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Marwani HM, Ahmad S, Rahman MM. Fabrication of 3D Gelatin Hydrogel Nanocomposite Impregnated Co-Doped SnO2 Nanomaterial for the Catalytic Reduction of Environmental Pollutants. Gels 2022; 8:gels8080479. [PMID: 36005080 PMCID: PMC9407077 DOI: 10.3390/gels8080479] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/20/2022] [Accepted: 07/25/2022] [Indexed: 02/01/2023] Open
Abstract
In the catalytic reduction of various environment pollutants, cobalt-doped tin oxide, i.e., Co-SnO2 intercalated gelatin (GL) hydrogel nanocomposite was prepared via direct mixing of Co-SnO2 doped with GL. Then, it was crosslinked internally using formaldehyde within a viscous solution of gelatin polymer, which led to the formation of GL/Co-SnO2 hydrogel nanocomposite. GL/Co-SnO2 hydrogel nanocomposite was fully characterized by using field-emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX), powder X-ray diffraction (XRD), and attenuated total reflection–Fourier transform infrared spectroscopy (ATR-FTIR). The FESEM images indicate that the Co-SnO2 composite has a spherical structure on the GL matrix while EDX elucidates the elemental composition of each atom in the crosslinked GL/Co-SnO2 hydrogel nanocomposite. The GL/Co-SnO2 nanocomposite was checked for the reduction of various pollutants, including 2-nitro-phenol (2-NP), 2,6-dinitro-phenol (2,6-DNP), 4-nitro-phenol (4-NP), Congo red (CR), and methyl orange (MO) dyes with a strong sodium borohydride (NaBH4) reducing agent. The GL/Co-SnO2 nanocomposite synergistically reduced the MO in the presence of the reducing agent with greater reduction rate of 1.036 min−1 compared to other dyes. The reduction condition was optimized by changing various parameters, such as the catalyst amount, dye concentration, and the NaBH4 amount. Moreover, the GL/Co-SnO2 nanocomposite catalyst can be easily recovered, is recyclable, and revealed minimal loss of nanomaterials.
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Affiliation(s)
- Hadi M. Marwani
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia;
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
- Correspondence: (H.M.M.); (M.M.R.); Tel.: +966-12-6952293 (H.M.M.); Fax: +966-12-6952292 (H.M.M.)
| | - Shahid Ahmad
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia;
| | - Mohammed M. Rahman
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia;
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
- Correspondence: (H.M.M.); (M.M.R.); Tel.: +966-12-6952293 (H.M.M.); Fax: +966-12-6952292 (H.M.M.)
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Doryab A, Schmid O. Bioactive Cell-Derived ECM Scaffold Forms a Unique Cellular Microenvironment for Lung Tissue Engineering. Biomedicines 2022; 10:biomedicines10081791. [PMID: 35892691 PMCID: PMC9394345 DOI: 10.3390/biomedicines10081791] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/19/2022] [Accepted: 07/22/2022] [Indexed: 12/11/2022] Open
Abstract
Chronic lung diseases are one of the leading causes of death worldwide. Lung transplantation is currently the only causal therapeutic for lung diseases, which is restricted to end-stage disease and limited by low access to donor lungs. Lung tissue engineering (LTE) is a promising approach to regenerating a replacement for at least a part of the damaged lung tissue. Currently, lung regeneration is limited to a simplified local level (e.g., alveolar−capillary barrier) due to the sophisticated and complex structure and physiology of the lung. Here, we introduce an extracellular matrix (ECM)-integrated scaffold using a cellularization−decellularization−recellularization technique. This ECM-integrated scaffold was developed on our artificial co-polymeric BETA (biphasic elastic thin for air−liquid interface cell culture conditions) scaffold, which were initially populated with human lung fibroblasts (IMR90 cell line), as the main generator of ECM proteins. Due to the interconnected porous structure of the thin (<5 µm) BETA scaffold, the cells can grow on and infiltrate into the scaffold and deposit their own ECM. After a mild decellularization procedure, the ECM proteins remained on the scaffold, which now closely mimicked the cellular microenvironment of pulmonary cells more realistically than the plain artificial scaffolds. We assessed several decellularization methods and found that 20 mM NH4OH and 0.1% Triton X100 with subsequent DNase treatment completely removed the fibroblasts (from the first cellularization) and maintains collagen I and IV as the key ECM proteins on the scaffold. We also showed the repopulation of the primary fibroblast from human (without chronic lung disease (non-CLD) donors) and human bronchial epithelial (16HBE14o−) cells on the ECM-integrated BETA scaffold. With this technique, we developed a biomimetic scaffold that can mimic both the physico-mechanical properties and the native microenvironment of the lung ECM. The results indicate the potential of the presented bioactive scaffold for LTE application.
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Rasoulianboroujeni M, Yadegari A, Tajik S, Tayebi L. Development of a Modular Reinforced Bone Tissue Engineering Scaffold with Enhanced Mechanical Properties. MATERIALS LETTERS 2022; 318:132170. [PMID: 35431373 PMCID: PMC9012216 DOI: 10.1016/j.matlet.2022.132170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A modular design composed of 3D-printed polycaprolactone (PCL) as the load-bearing module, and dual porosity gelatin foam as the bio-reactive module, was developed and characterized in this study. Surface treatment of the PCL module through aminolysis-aldehyde process was found to yield a stronger interface bonding compared to NaOH hydrolysis, and therefore was used in the fabrication procedure. The modular scaffold was shown to significantly improve the mechanical properties of the gelatin foam. Both compressive modulus and ultimate strength was found to increase over 10 times when the modular design was employed. The bio-reactive module i.e., gelatin foam, presented a dual porosity network of 100-300 μm primary and <10 μm secondary pores. SEM images revealed excellent attachment of DPSCs to the bio-reactive module.
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Affiliation(s)
| | - Amir Yadegari
- Marquette University School of Dentistry, Milwaukee, WI, 53233, USA
| | - Sanaz Tajik
- Marquette University School of Dentistry, Milwaukee, WI, 53233, USA
| | - Lobat Tayebi
- Marquette University School of Dentistry, Milwaukee, WI, 53233, USA
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Tabatabaei F, Rasoulianboroujeni M, Yadegari A, Tajik S, Moharamzadeh K, Tayebi L. Osteo-mucosal engineered construct: In situ adhesion of hard-soft tissues. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112255. [PMID: 34474817 DOI: 10.1016/j.msec.2021.112255] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/05/2021] [Accepted: 06/08/2021] [Indexed: 12/25/2022]
Abstract
OBJECTIVES The aim of this work was to combine engineered hard and soft tissue, adopting a new method for interfacial adhesion of osteo-mucosal construct. We hypothesized that the chemical procedure involved in this method not only adheres the components, but also improves the cell growth inside them. METHODS 3D-printed functionally-graded porous hard-tissue scaffolds were characterized, functionalized by aminolysis and tyrosinase, and accommodated by human osteoblast cells. Introducing amino groups through aminolysis and inducing dopaquinones by tyrosinase can take part in the Michael additions to cause the adhesion. Subsequently, fully-differentiated engineered oral mucosa was formed directly on the surface of hard tissue. Constructs were assessed in term of morphology, structure, chemical composition, histology, and cytocompatibility. Interfacial adhesion was compared to a control group prepared by using a biological glue for the attachment of the soft and hard tissues. RESULTS The data confirmed higher proliferation of osteoblast cells via aminolysis and improved osteoblast cells distribution and differentiation by incorporation of tyrosinase in collagen. There was evidence of multilayered, stratified epithelium on the osteo-mucosal model with viable fibroblasts and osteoblasts within the lamina propria and bone tissue layers. Our method of adhesion resulted in cohesive debonding within the engineered soft tissue; while in the control group, adhesive debonding and complete separation of the oral mucosa from the hard tissue was observed. Although the shear strength of the osteo-mucosal model (157.6 kDa ± 25.1) was slightly higher than that of the control group (149.4 kDa ± 23.1), there was no statistically significant difference between them (p > 0.05). However, the advantage of our in situ adhesion approach is the absence of a barrier like glue which can disrupt direct cellular communications between tissues. SIGNIFICANCE This study provides a novel method of directly combining tissue-engineered human bone with oral mucosa, which has the potential to improve cell-ingrowth and tissue integration. This engineered tissue construct, after further optimization, can be used clinically as a graft material in various oral surgeries and can also be employed as an in vitro model to investigate many aspects of oral diseases and examine dental materials and oral health care products as a replacement of in vivo models.
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Affiliation(s)
| | | | - Amir Yadegari
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | - Sanaz Tajik
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | - Keyvan Moharamzadeh
- Hamdan Bin Mohammed College of Dental Medicine (HBMCDM), Mohammed Bin Rashid University of Medicine and Health Sciences (MBRU), Dubai, United Arab Emirates; School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
| | - Lobat Tayebi
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA.
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Palenzuela M, Valenzuela L, Amariei G, Vega JF, Mosquera MEG, Rosal R. Poly(glycidyl methacrylate) macromolecular assemblies as biocompatible nanocarrier for the antimicrobial lysozyme. Int J Pharm 2021; 603:120695. [PMID: 33984454 DOI: 10.1016/j.ijpharm.2021.120695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/29/2021] [Accepted: 05/06/2021] [Indexed: 11/28/2022]
Abstract
The antimicrobial lysozyme (Lys) was electrostatically incorporated to negatively charged crosslinked poly(glycidyl methacrylate) (c-PGMA) macromolecular assemblies. The resulting material was characterized by AFM, infrared spectra, water contact angle measurements and the staining with the primary amino specific dye fluorescamine. c-PGMA nanoparticles were successfully loaded with Lys reaching ratios of 27.3 ± 4.0 and 22.5 ± 1.7 mg Lys/g polymer for c-PGMA suspensions and functionalized glass substrates, respectively. Lys-loaded c-PGMA caused clear inhibition zones on S. aureus and E. coli in comparison to neat c-PGMA. c-PGMA functionalized surfaces were intrinsically resistant to colonization, but the incorporation of Lys added resistance to bacterial attachment and allowed keeping surfaces clean of bacterial cells for both strains. A relatively rapid release (24 h) of Lys was observed at physiological pH (7.4). In addition, c-PGMA functionalized substrates could be reloaded several times without losing capacity. c-PGMA macromolecular assemblies did not display cytotoxicity to human dermal fibroblasts as shown in 24 h MTT assays. This work demonstrated that c-PGMA assemblies display durable antibacterial activity, biocompatibility, and full reloading capacity with antimicrobial peptides. c-PGMA functionalized materials have potential application as nanocarriers for anti-infective uses.
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Affiliation(s)
- Miguel Palenzuela
- Department of Organic and Inorganic Chemistry, Institute of Chemical Research "Andrés M. del Río" (IQAR), Universidad de Alcalá, 28805 Alcalá de Henares, Madrid, Spain
| | - Laura Valenzuela
- Department of Chemical Engineering, Universidad de Alcalá, 28805 Alcalá de Henares, Madrid, Spain
| | - Georgiana Amariei
- Department of Chemical Engineering, Universidad de Alcalá, 28805 Alcalá de Henares, Madrid, Spain.
| | - Juan F Vega
- Department of Macromolecular Physics, Instituto de Estructura de la Materia, IEM-CSIC, 28006 Madrid, Spain
| | - Marta E G Mosquera
- Department of Organic and Inorganic Chemistry, Institute of Chemical Research "Andrés M. del Río" (IQAR), Universidad de Alcalá, 28805 Alcalá de Henares, Madrid, Spain.
| | - Roberto Rosal
- Department of Chemical Engineering, Universidad de Alcalá, 28805 Alcalá de Henares, Madrid, Spain
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Boularaoui S, Al Hussein G, Khan KA, Christoforou N, Stefanini C. An overview of extrusion-based bioprinting with a focus on induced shear stress and its effect on cell viability. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.bprint.2020.e00093] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Affiliation(s)
- Lobat Tayebi
- Institute of Biomedical Engineering, Department of Engineering ScienceUniversity of Oxford Oxford UK
- Department of Developmental SciencesMarquette University School of Dentistry Milwaukee Wisconsin USA
| | - Zhanfeng Cui
- Institute of Biomedical Engineering, Department of Engineering ScienceUniversity of Oxford Oxford UK
| | - Hua Ye
- Institute of Biomedical Engineering, Department of Engineering ScienceUniversity of Oxford Oxford UK
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Meghdadi M, Atyabi SM, Pezeshki-Modaress M, Irani S, Noormohammadi Z, Zandi M. Cold atmospheric plasma as a promising approach for gelatin immobilization on poly(ε-caprolactone) electrospun scaffolds. Prog Biomater 2019; 8:65-75. [PMID: 30919328 PMCID: PMC6556167 DOI: 10.1007/s40204-019-0111-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 03/18/2019] [Indexed: 11/28/2022] Open
Abstract
Poly(Ɛ-caprolactone) (PCL) is a biocompatible polymer with a high potential to be used in tissue engineering especially in tight tissues. In the current study, cold atmospheric plasma (CAP) is used as a promising method for immobilization of gelatin as a functional biomacromolecule on PCL nanofibrous substrates. The CAP surface modification leads to oxidation of chemical groups existing on the PCL surface without doing any damage to the bulk properties of biomaterials for gelatin biomacromolecule grafting. The water contact angle (WCA) of the CAP-treated surface and gelatin-grafted PCL using CAP indicates an effective increment in the hydrophilicity of the PCL surface. Also to achieve the highest levels of gelatin grafting on the PCL surface, two different grafting methods and gelatin concentration diversity are utilized in the grafting process. The immobilization of gelatin biomacromolecules onto the CAP surface-modified PCL nanofibers is investigated using scanning electron microscope (SEM) and Fourier transform infrared spectroscopy (FTIR). The gelatin-modified PCL substrates revealed uniform nanofibrous morphology with increased average fiber diameter. The results of FTIR spectra, including hydroxyl groups, NH groups, and amide II of gelatin-grafting peaks, confirm the gelatin immobilization on the surface of nanofibers. The metabolic activity of cultured mesenchymal stem cells (MSCs) on the surface-modified scaffolds is evaluated using MTT analysis (P ≤ 0.05). The results of metabolic activity and also SEM and DAPI staining observations indicate proper attachment on the surface and viability for MSCs on the surface-immobilized nanofibrous scaffolds. Therefore, CAP treatment would be an effective method for biomacromolecule immobilization on nanofibers towards the enhancement of cell behavior.
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Affiliation(s)
- Marziyeh Meghdadi
- Department of Biology, School of Basic Sciences, Sciences and Research Branch, Islamic Azad University, Tehran, Iran
| | | | | | - Shiva Irani
- Department of Biology, School of Basic Sciences, Sciences and Research Branch, Islamic Azad University, Tehran, Iran
| | - Zahra Noormohammadi
- Department of Biology, School of Basic Sciences, Sciences and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mojgan Zandi
- Department of Biomaterial, Iran Polymer and Petrochemical Institute, Tehran, Iran
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Guizzardi R, Vaghi L, Marelli M, Natalello A, Andreosso I, Papagni A, Cipolla L. Gelatin-Based Hydrogels through Homobifunctional Triazolinediones Targeting Tyrosine Residues. Molecules 2019; 24:E589. [PMID: 30736414 PMCID: PMC6385110 DOI: 10.3390/molecules24030589] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 02/05/2019] [Accepted: 02/05/2019] [Indexed: 01/30/2023] Open
Abstract
Gelatin is a biopolymer with interesting properties that can be useful for biomaterial design for different applications such as drug delivery systems, or 3D scaffolds for tissue engineering. However, gelatin suffers from poor mechanical stability at physiological temperature, hence methods for improving its properties are highly desirable. In the present work, a new chemical cross-linking strategy based on triazolinedione ene-type chemistry towards stable hydrogel is proposed. Two different homobifunctional 1,2,4-triazoline-3,5(4H)-diones, namely 4,4'-hexane-1,6-diylbis(3H-1,2,4-triazoline-3,5(4H)-dione) 1 and 4,4'-[methylenebis(4,1-phenylene)]bis(3H-1,2,4-triazoline-3,5(4H)-dione) 2 were used as cross-linkers in different ratio to tyrosine residues in gelatin. The reaction was proved effective in all experimented conditions and hydrogels featured with different thermal stability were obtained. In general, the higher the cross-linker/tyrosine ratio, the more thermostable the hydrogel. The swelling properties are strictly dependent upon the chemical nature of the cross-linker.
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Affiliation(s)
- Roberto Guizzardi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milano-IT, Italy.
| | - Luca Vaghi
- Department of Materials Science, University of Milano-Bicocca, via R. Cozzi 55, 20125 Milano-IT, Italy.
| | - Marcello Marelli
- CNR, Institute of Molecular Science and Technologies, Via C. Golgi 19, 20133 Milano-IT, Italy.
| | - Antonino Natalello
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milano-IT, Italy.
| | - Ivan Andreosso
- Department of Materials Science, University of Milano-Bicocca, via R. Cozzi 55, 20125 Milano-IT, Italy.
| | - Antonio Papagni
- Department of Materials Science, University of Milano-Bicocca, via R. Cozzi 55, 20125 Milano-IT, Italy.
| | - Laura Cipolla
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milano-IT, Italy.
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Huda MK, Das PP, Baruah SD, Saikia PJ. Polycaprolactone-blended gelatin microspheres and their morphological study. JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1229-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Samsudin N, Hashim YZHY, Arifin MA, Mel M, Salleh HM, Sopyan I, Jimat DN. Optimization of ultraviolet ozone treatment process for improvement of polycaprolactone (PCL) microcarrier performance. Cytotechnology 2017; 69:601-616. [PMID: 28337561 DOI: 10.1007/s10616-017-0071-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 01/24/2017] [Indexed: 02/01/2023] Open
Abstract
Growing cells on microcarriers may have overcome the limitation of conventional cell culture system. However, the surface functionality of certain polymeric microcarriers for effective cell attachment and growth remains a challenge. Polycaprolactone (PCL), a biodegradable polymer has received considerable attention due to its good mechanical properties and degradation rate. The drawback is the non-polar hydrocarbon moiety which makes it not readily suitable for cell attachment. This report concerns the modification of PCL microcarrier surface (introduction of functional oxygen groups) using ultraviolet irradiation and ozone (UV/O3) system and investigation of the effects of ozone concentration, the amount of PCL and exposure time; where the optimum conditions were found to be at 60,110.52 ppm, 5.5 g PCL and 60 min, respectively. The optimum concentration of carboxyl group (COOH) absorbed on the surface was 1495.92 nmol/g and the amount of gelatin immobilized was 320 ± 0.9 µg/g on UV/O3 treated microcarriers as compared to the untreated (26.83 ± 3 µg/g) microcarriers. The absorption of functional oxygen groups on the surface and the immobilized gelatin was confirmed with the attenuated total reflectance Fourier transformed infrared spectroscopy (ATR-FTIR) and the enhancement of hydrophilicity of the surface was confirmed using water contact angle measurement which decreased (86.93°-49.34°) after UV/O3 treatment and subsequently after immobilization of gelatin. The attachment and growth kinetics for HaCaT skin keratinocyte cells showed that adhesion occurred much more rapidly for oxidized surfaces and gelatin immobilized surface as compared to untreated PCL.
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Affiliation(s)
- Nurhusna Samsudin
- Department of Biotechnology Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, P.O. Box 10, 50728, Kuala Lumpur, Malaysia
| | - Yumi Zuhanis Has-Yun Hashim
- Department of Biotechnology Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, P.O. Box 10, 50728, Kuala Lumpur, Malaysia. .,International Institute for Halal Research and Training (INHART), International Islamic University Malaysia, Level 3, KICT Building, P.O. Box 10, 50728, Kuala Lumpur, Malaysia.
| | - Mohd Azmir Arifin
- Department of Biotechnology Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, P.O. Box 10, 50728, Kuala Lumpur, Malaysia.,Faculty of Engineering Technology, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Kuantan, Pahang, Malaysia
| | - Maizirwan Mel
- Department of Biotechnology Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, P.O. Box 10, 50728, Kuala Lumpur, Malaysia
| | - Hamzah Mohd Salleh
- Department of Biotechnology Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, P.O. Box 10, 50728, Kuala Lumpur, Malaysia. .,International Institute for Halal Research and Training (INHART), International Islamic University Malaysia, Level 3, KICT Building, P.O. Box 10, 50728, Kuala Lumpur, Malaysia.
| | - Iis Sopyan
- Department of Manufacturing and Material Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, P.O. Box 10, 50728, Kuala Lumpur, Malaysia
| | - Dzun Noraini Jimat
- Department of Biotechnology Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, P.O. Box 10, 50728, Kuala Lumpur, Malaysia
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Aguirre-Chagala YE, Altuzar V, León-Sarabia E, Tinoco-Magaña JC, Yañez-Limón JM, Mendoza-Barrera C. Physicochemical properties of polycaprolactone/collagen/elastin nanofibers fabricated by electrospinning. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:897-907. [PMID: 28482605 DOI: 10.1016/j.msec.2017.03.118] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 02/18/2017] [Accepted: 03/15/2017] [Indexed: 01/01/2023]
Abstract
Collagen and elastin are the two most abundant proteins in the human body, and as biomaterials offer fascinating properties to composite materials. More detailed investigations including these biomaterials within reinforced composites are still needed. This report describes physicochemical properties of fibers composed of collagen type I, collagen III, elastin and polycaprolactone (PCL). Prior to the electrospinning process, PCL was functionalized through covalent attachment of -NH2 groups by aminolysis reaction with hexamentilendiamine. The fibers were fabricated by electrospinning technique set up with a non-conventional collector. A morphological comparative study was developed at different rations of collagen type I, observing in some cases two populations of fibers. The diameters and morphology were analyzed by SEM, observing a wide array of nanostructures with diameters of ~310 to 693nm. Chemical characterization was assessed by FT-IR spectroscopy and the functionalized PCL was characterized through ninhydrin assay resulting in 0.36mM NH2/mg fiber. Swelling tests were performed for 24h, obtaining 320% for the majority of the fibers indicating morphological stability and good water uptake. In addition, contact angle analysis demonstrated adequate permeability and differences for each system depending mainly upon the type of biopolymer incorporated and the functionalization of PCL, ranging the values from 108° to 17°. Moreover, differential scanning calorimetry results showed a melting temperature (Tm) of ~60°C. The onset degradation temperatures (Td,onset) ranged between 115 and 148°C, and were obtained by thermogravimetric analysis. The local mechanical properties of individual fibers were quantified by atomic force acoustic microscopy. These results propose that the physicochemical and mechanical properties of these scaffolds offer the possibility for enhanced biological activity Thus, they have a great potential as candidate scaffolds in tissue engineering applications.
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Affiliation(s)
- Yanet E Aguirre-Chagala
- Laboratorio de Nanobiotecnología, Centro de Investigación en Micro y Nanotecnología, Universidad Veracruzana, Boca del Río, Ver. 94294, Mexico
| | - Víctor Altuzar
- Laboratorio de Nanobiotecnología, Centro de Investigación en Micro y Nanotecnología, Universidad Veracruzana, Boca del Río, Ver. 94294, Mexico; Facultad de Ciencias Físico-Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, Puebla 72570, Mexico
| | - Eleazar León-Sarabia
- CINVESTAV Unidad Querétaro, Lib. Norponiente 2000, Real de Juriquilla, 76230 Querétaro, Qro., Mexico
| | - Julio C Tinoco-Magaña
- Laboratorio de Nanobiotecnología, Centro de Investigación en Micro y Nanotecnología, Universidad Veracruzana, Boca del Río, Ver. 94294, Mexico
| | - José M Yañez-Limón
- CINVESTAV Unidad Querétaro, Lib. Norponiente 2000, Real de Juriquilla, 76230 Querétaro, Qro., Mexico
| | - Claudia Mendoza-Barrera
- Laboratorio de Nanobiotecnología, Centro de Investigación en Micro y Nanotecnología, Universidad Veracruzana, Boca del Río, Ver. 94294, Mexico; Facultad de Ciencias Físico-Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, Puebla 72570, Mexico.
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14
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Zoppe JO, Ataman NC, Mocny P, Wang J, Moraes J, Klok HA. Surface-Initiated Controlled Radical Polymerization: State-of-the-Art, Opportunities, and Challenges in Surface and Interface Engineering with Polymer Brushes. Chem Rev 2017; 117:1105-1318. [PMID: 28135076 DOI: 10.1021/acs.chemrev.6b00314] [Citation(s) in RCA: 587] [Impact Index Per Article: 83.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The generation of polymer brushes by surface-initiated controlled radical polymerization (SI-CRP) techniques has become a powerful approach to tailor the chemical and physical properties of interfaces and has given rise to great advances in surface and interface engineering. Polymer brushes are defined as thin polymer films in which the individual polymer chains are tethered by one chain end to a solid interface. Significant advances have been made over the past years in the field of polymer brushes. This includes novel developments in SI-CRP, as well as the emergence of novel applications such as catalysis, electronics, nanomaterial synthesis and biosensing. Additionally, polymer brushes prepared via SI-CRP have been utilized to modify the surface of novel substrates such as natural fibers, polymer nanofibers, mesoporous materials, graphene, viruses and protein nanoparticles. The last years have also seen exciting advances in the chemical and physical characterization of polymer brushes, as well as an ever increasing set of computational and simulation tools that allow understanding and predictions of these surface-grafted polymer architectures. The aim of this contribution is to provide a comprehensive review that critically assesses recent advances in the field and highlights the opportunities and challenges for future work.
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Affiliation(s)
- Justin O Zoppe
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Nariye Cavusoglu Ataman
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Piotr Mocny
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Jian Wang
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - John Moraes
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Harm-Anton Klok
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
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15
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Synthesis and characterization of thermosensitive gelatin hydrogel microspheres in a microfluidic system. Macromol Res 2016. [DOI: 10.1007/s13233-016-4069-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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16
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Kosmala A, Fitzgerald M, Moore E, Stam F. Evaluation of a Gelatin-Modified Poly(ε-Caprolactone) Film as a Scaffold for Lung Disease. ANAL LETT 2016. [DOI: 10.1080/00032719.2016.1163363] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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17
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Kim MJ, Shin YC, Lee JH, Jun SW, Kim CS, Lee Y, Park JC, Lee SH, Park KD, Han DW. Multiphoton imaging of myogenic differentiation in gelatin-based hydrogels as tissue engineering scaffolds. Biomater Res 2016; 20:2. [PMID: 26783450 PMCID: PMC4716633 DOI: 10.1186/s40824-016-0050-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 01/04/2016] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Hydrogels can serve as three-dimensional (3D) scaffolds for cell culture and be readily injected into the body. Recent advances in the image technology for 3D scaffolds like hydrogels have attracted considerable attention to overcome the drawbacks of ordinary imaging technologies such as optical and fluorescence microscopy. Multiphoton microscopy (MPM) is an effective method based on the excitation of two-photons. In the present study, C2C12 myoblasts differentiated in 3D gelatin hydroxyphenylpropionic acid (GHPA) hydrogels were imaged by using a custom-built multiphoton excitation fluorescence microscopy to compare the difference in the imaging capacity between conventional microscopy and MPM. RESULTS The physicochemical properties of GHPA hydrogels were characterized by using scanning electron microscopy and Fourier-transform infrared spectroscopy. In addition, the cell viability and proliferation of C2C12 myoblasts cultured in the GHPA hydrogels were analyzed by using Live/Dead Cell and CCK-8 assays, respectively. It was found that C2C12 cells were well grown and normally proliferated in the hydrogels. Furthermore, the hydrogels were shown to be suitable to facilitate the myogenic differentiation of C2C12 cells incubated in differentiation media, which had been corroborated by MPM. It was very hard to get clear images from a fluorescence microscope. CONCLUSIONS Our findings suggest that the gelatin-based hydrogels can be beneficially utilized as 3D scaffolds for skeletal muscle engineering and that MPM can be effectively applied to imaging technology for tissue regeneration.
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Affiliation(s)
- Min Jeong Kim
- />Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241 Korea
| | - Yong Cheol Shin
- />Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241 Korea
| | - Jong Ho Lee
- />Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241 Korea
| | - Seung Won Jun
- />Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241 Korea
| | - Chang-Seok Kim
- />Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241 Korea
| | - Yunki Lee
- />Department of Molecular Science and Technology, Ajou University, Suwon, 16499 Korea
| | - Jong-Chul Park
- />Department of Medical Engineering, Cellbiocontrol Laboratory, Yonsei University College of Medicine, Seoul, 03722 Korea
| | - Soo-Hong Lee
- />Department of Biomedical Science, CHA University, Gyeonggi-do, 11160 Korea
| | - Ki Dong Park
- />Department of Molecular Science and Technology, Ajou University, Suwon, 16499 Korea
| | - Dong-Wook Han
- />Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241 Korea
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18
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Bhattacharjee P, Naskar D, Kim HW, Maiti TK, Bhattacharya D, Kundu SC. Non-mulberry silk fibroin grafted PCL nanofibrous scaffold: Promising ECM for bone tissue engineering. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.08.025] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Xiong GM, Yuan S, Wang JK, Do AT, Tan NS, Yeo KS, Choong C. Imparting electroactivity to polycaprolactone fibers with heparin-doped polypyrrole: Modulation of hemocompatibility and inflammatory responses. Acta Biomater 2015; 23:240-249. [PMID: 25983317 DOI: 10.1016/j.actbio.2015.05.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 04/14/2015] [Accepted: 05/07/2015] [Indexed: 10/23/2022]
Abstract
Hemocompatibility, anti-inflammation and anti-thrombogenicity of acellular synthetic vascular grafts remains a challenge in biomaterials design. Using electrospun polycaprolactone (PCL) fibers as a template, a coating of polypyrrole (PPy) was successfully polymerized onto the fiber surface. The fibers coated with heparin-doped PPy (PPy-HEP) demonstrated better electroactivity, lower surface resistivity (9-10-fold) and better anti-coagulation response (non-observable plasma recalcification after 30min vs. recalcification at 8-9min) as compared to fibers coated with pristine PPy. Red blood cell compatibility, measured by% hemolysis, was greatly improved on PPy-HEP-coated PCL in comparison to uncoated PCL (3.9±2.1% vs. 22.1±4.1%). PPy-HEP-coated PCL fibers also exhibited higher stiffness values (6.8±0.9MPa vs. 4.2±0.8MPa) as compared to PCL fibers, but similar tensile strengths. It was also observed that the application of a low alternating current led to a 4-fold reduction of platelet activation (as quantitated by CD62p expression) for the PPy-HEP-coated fibers as compared to non-stimulated conditions. In parallel, a reduction in the leukocyte adhesion to both pristine PPy-coated and PPy-HEP-coated fibers was observable with AC stimulation. Overall, a new strategy involving the use of hemocompatible conducting polymers and electrical stimulation to control thrombogenicity and inflammatory responses for synthetic vascular graft designs was demonstrated.
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20
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Beardslee LA, Stolwijk J, Khaladj DA, Trebak M, Halman J, Torrejon KY, Niamsiri N, Bergkvist M. A sacrificial process for fabrication of biodegradable polymer membranes with submicron thickness. J Biomed Mater Res B Appl Biomater 2015; 104:1192-201. [PMID: 26079689 DOI: 10.1002/jbm.b.33464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Revised: 04/18/2015] [Accepted: 05/17/2015] [Indexed: 11/10/2022]
Abstract
A new sacrificial molding process using a single mask has been developed to fabricate ultrathin 2-dimensional membranes from several biocompatible polymeric materials. The fabrication process is similar to a sacrificial microelectromechanical systems (MEMS) process flow, where a mold is created from a material that can be coated with a biodegradable polymer and subsequently etched away, leaving behind a very thin polymer membrane. In this work, two different sacrificial mold materials, silicon dioxide (SiO2 ) and Liftoff Resist (LOR) were used. Three different biodegradable materials; polycaprolactone (PCL), poly(lactic-co-glycolic acid) (PLGA), and polyglycidyl methacrylate (PGMA), were chosen as model polymers. We demonstrate that this process is capable of fabricating 200-500 nm thin, through-hole polymer membranes with various geometries, pore-sizes and spatial features approaching 2.5 µm using a mold fabricated via a single contact photolithography exposure. In addition, the membranes can be mounted to support rings made from either SU8 or PCL for easy handling after release. Cell culture compatibility of the fabricated membranes was evaluated with human dermal microvascular endothelial cells (HDMECs) seeded onto the ultrathin porous membranes, where the cells grew and formed confluent layers with well-established cell-cell contacts. Furthermore, human trabecular meshwork cells (HTMCs) cultured on these scaffolds showed similar proliferation as on flat PCL substrates, further validating its compatibility. All together, these results demonstrated the feasibility of our sacrificial fabrication process to produce biocompatible, ultra-thin membranes with defined microstructures (i.e., pores) with the potential to be used as substrates for tissue engineering applications. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 104B: 1192-1201, 2016.
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Affiliation(s)
- Luke A Beardslee
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, New York
| | - Judith Stolwijk
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, New York
| | - Dimitrius A Khaladj
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, New York
| | - Mohamed Trebak
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, New York
| | - Justin Halman
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, New York
| | - Karen Y Torrejon
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, New York
| | - Nuttawee Niamsiri
- Department of Biotechnology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Magnus Bergkvist
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, New York
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21
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Gunnewiek MK, Di Luca A, Bollemaat HZ, van Blitterswijk CA, Vancso GJ, Moroni L, Benetti EM. Creeping proteins in microporous structures: polymer brush-assisted fabrication of 3D gradients for tissue engineering. Adv Healthc Mater 2015; 4:1169-74. [PMID: 25676461 DOI: 10.1002/adhm.201400797] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 01/22/2015] [Indexed: 01/22/2023]
Abstract
Coupling of rapid prototyping techniques and surface-confined polymerizations allows the fabrication of 3D multidirectional gradients of biomolecules within microporous scaffolds. The compositional gradients can be tailored by polymer-brush-assisted diffusion of protein solutions. This technique allows spatial control over stem cells manipulation within 3D environments.
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Affiliation(s)
- Michel Klein Gunnewiek
- Department of Materials Science and Technology of Polymers, MESA+ Institute for Nanotechnology; University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
| | - Andrea Di Luca
- Department of Tissue Regeneration; MIRA Institute for Biomedical Technology and Technical Medicine; University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
| | - Hermannes Z. Bollemaat
- Department of Materials Science and Technology of Polymers, MESA+ Institute for Nanotechnology; University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
| | - Clemens A. van Blitterswijk
- Department of Tissue Regeneration; MIRA Institute for Biomedical Technology and Technical Medicine; University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
- Department of Complex Tissue Regeneration; MERLN Institute for Technology Inspired Regenerative Medicine; Maastricht University; P.O. Box 616 6200 MD Maastricht The Netherlands
| | - G. Julius Vancso
- Department of Materials Science and Technology of Polymers, MESA+ Institute for Nanotechnology; University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
| | - Lorenzo Moroni
- Department of Tissue Regeneration; MIRA Institute for Biomedical Technology and Technical Medicine; University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
- Department of Complex Tissue Regeneration; MERLN Institute for Technology Inspired Regenerative Medicine; Maastricht University; P.O. Box 616 6200 MD Maastricht The Netherlands
| | - Edmondo M. Benetti
- Department of Materials Science and Technology of Polymers, MESA+ Institute for Nanotechnology; University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
- Laboratory for Surface Science and Technology (LSST); Department of Materials, ETH Zürich; Vladimir-Prelog-Weg 5 CH-8093 Zürich Switzerland
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22
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Luo B, Yuan S, Foo SEM, Wong MTC, Lim TC, Tan NS, Choong C. From flab to fab: transforming surgical waste into an effective bioactive coating material. Adv Healthc Mater 2015; 4:613-20. [PMID: 25424903 DOI: 10.1002/adhm.201400514] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 11/07/2014] [Indexed: 12/31/2022]
Abstract
Cellular events are regulated by the interaction between integrin receptors in the cell membrane and the extracellular matrix (ECM). Hence, ECM, as a material, can potentially play an instructive role in cell-material interactions. Currently, adipose tissue in the form of lipoaspirate is often discarded. Here, it is demonstrated how our chemical-free decellularization method could be used to obtain ECM from human lipoaspirate waste material. These investigations show that the main biological components are retained in the lipoaspirate-derived ECM (LpECM) material and that this LpECM material could subsequently be used as a coating material to confer bioactivity to an otherwise inert biodegradable material (i.e., polycaprolactone). Overall, lipoaspirate material, a complex blend of endogenous proteins, is effectively used a bioactive coating material. This work is an important stepping-stone towards the development of biohybrid scaffolds that contain cellular benefits without requiring the use of additional biologics based on commonly discarded lipoaspirate material.
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Affiliation(s)
- Baiwen Luo
- Division of Materials Technology; School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Shaojun Yuan
- Division of Materials Technology; School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Selin Ee Min Foo
- School of Biological Sciences; Nanyang Technological University; 60 Nanyang Avenue 638557 Singapore
| | - Marcus Thien Chong Wong
- Plastic, Reconstructive and Aesthetic Surgery Section; Tan Tock Seng, Hospital; 11, Jalan Tan Tock Seng 308433 Singapore
| | - Thiam Chye Lim
- Division of Plastic; Reconstructive and Aesthetic Surgery; National University Hospital; 5, Lower Kent Ridge Road 119074 Singapore
| | - Nguan Soon Tan
- School of Biological Sciences; Nanyang Technological University; 60 Nanyang Avenue 638557 Singapore
- Institute of Cell and Molecular Biology; Agency for Science Technology and Research; 61, Biopolis Drive, Proteos Building 138673 Singapore
| | - Cleo Choong
- Division of Materials Technology; School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
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23
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Yuan S, Xiong G, He F, Jiang W, Liang B, Pehkonen S, Choong C. PCL microspheres tailored with carboxylated poly(glycidyl methacrylate)–REDV conjugates as conducive microcarriers for endothelial cell expansion. J Mater Chem B 2015; 3:8670-8683. [DOI: 10.1039/c5tb01836f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
PCL microspheres were functionalized with carboxylated PGMA-REDV conjugates by a combination of surface-initiated ATRP and click reaction.
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Affiliation(s)
- Shaojun Yuan
- Multiphase Mass Transfer & Reaction Engineering Lab
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China 610065
| | - Gordon Xiong
- Division of Materials Technology
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
- Singapore
| | - Fei He
- Multiphase Mass Transfer & Reaction Engineering Lab
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China 610065
| | - Wei Jiang
- Multiphase Mass Transfer & Reaction Engineering Lab
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China 610065
| | - Bin Liang
- Multiphase Mass Transfer & Reaction Engineering Lab
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China 610065
| | - Simo Pehkonen
- Department of Environmental Sciences
- University of Eastern Finland
- 70211 Kuopio
- Finland
| | - Cleo Choong
- Division of Materials Technology
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
- Singapore
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24
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Yuan S, Xiong G, He F, Jiang W, Liang B, Choong C. Multifunctional REDV-conjugated zwitterionic polycarboxybetaine–polycaprolactone hybrid surfaces for enhanced antibacterial activity, anti-thrombogenicity and endothelial cell proliferation. J Mater Chem B 2015; 3:8088-8101. [DOI: 10.1039/c5tb01598g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Multifunctional PCL hybrid surfaces are developed by grafting of REDV–zwitterionic polycarboxybetaine conjugates via surface-initiated ATRP.
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Affiliation(s)
- Shaojun Yuan
- Multiphase Mass Transfer & Reaction Engineering Lab
- College of Chemical Engineering
- Sichuan University
- Chengdu
- 610065 China
| | - Gordon Xiong
- Division of Materials Technology
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
| | - Fei He
- Multiphase Mass Transfer & Reaction Engineering Lab
- College of Chemical Engineering
- Sichuan University
- Chengdu
- 610065 China
| | - Wei Jiang
- Multiphase Mass Transfer & Reaction Engineering Lab
- College of Chemical Engineering
- Sichuan University
- Chengdu
- 610065 China
| | - Bin Liang
- Multiphase Mass Transfer & Reaction Engineering Lab
- College of Chemical Engineering
- Sichuan University
- Chengdu
- 610065 China
| | - Cleo Choong
- Division of Materials Technology
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
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25
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Krishnamoorthy M, Hakobyan S, Ramstedt M, Gautrot JE. Surface-initiated polymer brushes in the biomedical field: applications in membrane science, biosensing, cell culture, regenerative medicine and antibacterial coatings. Chem Rev 2014; 114:10976-1026. [PMID: 25353708 DOI: 10.1021/cr500252u] [Citation(s) in RCA: 384] [Impact Index Per Article: 38.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mahentha Krishnamoorthy
- Institute of Bioengineering and ‡School of Engineering and Materials Science, Queen Mary University of London , Mile End Road, London E1 4NS, United Kingdom
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26
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Yoshizawa K, Taguchi T. Bonding behavior of hydrophobically modified gelatin films on the intestinal surface. J BIOACT COMPAT POL 2014. [DOI: 10.1177/0883911514553731] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The bonding behavior was determined for hydrophobically modified alkaline-treated gelatin on wet porcine intestinal surfaces. The modified gelatin films were obtained by reacting the amino groups of alkaline-treated gelatin with fatty acid chlorides of different alkyl chain lengths, namely, hexanoyl (Hx: C6) chloride, decanoyl (Dec: C10) chloride, and stearoyl (Ste: C18) chloride. Three kinds of the films were prepared, 32HxAlGltn, 24DecAlGltn, and 26SteAlGltn that had substitution ratios of hydrophobic groups to the amino groups of 32HxAlGltn, 24DecAlGltn, and 26SteAlGltn of 32%, 24%, and 26%, respectively. The 32HxAlGltn film had the strongest bonding to porcine intestinal surfaces. A thick 32HxAlGltn film remained on the intestinal surface even after the bonded film was scraped off for the measurement of bonding strength. In addition, the burst strength increased with an increase in the substitution ratio of the Hx group. Thus, the HxAlGltn film with the higher Hx modification ratio has a potential as a sealant material to prevent agglutination of intestinal surfaces.
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Affiliation(s)
- Keiko Yoshizawa
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan
| | - Tetsushi Taguchi
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan
- Biomaterials Unit, Nano-Life Field, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science, Tsukuba, Japan
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27
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Pandis C, Trujillo S, Matos J, Madeira S, Ródenas-Rochina J, Kripotou S, Kyritsis A, Mano JF, Gómez Ribelles JL. Porous polylactic acid-silica hybrids: preparation, characterization, and study of mesenchymal stem cell osteogenic differentiation. Macromol Biosci 2014; 15:262-74. [PMID: 25303745 DOI: 10.1002/mabi.201400339] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 09/10/2014] [Indexed: 11/07/2022]
Abstract
A novel approach to reinforce polymer porous membranes is presented. In the prepared hybrid materials, the inorganic phase of silica is synthesized in-situ and inside the pores of aminolyzed polylactic acid (PLA) membranes by sol-gel reactions using tetraethylorthosilicate (TEOS) and glycidoxypropyltrimethoxysilane (GPTMS) as precursors. The hybrid materials present a porous structure with a silica layer covering the walls of the pores while GPTMS serves also as coupling agent between the organic and inorganic phase. The adjustment of silica precursors ratio allows the modulation of the thermomechanical properties. Culture of mesenchymal stem cells on these supports in osteogenic medium shows the expression of characteristic osteoblastic markers and the mineralization of the extracellular matrix.
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Affiliation(s)
- Christos Pandis
- Physics Department, National Technical University of Athens, Zografou Campus, Athens, 15780, Greece; Centro de Biomateriales e Ingeniería Tisular, Universitat Politècnica de València, Camino de Vera s/n, Valencia, 46022, Spain.
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Xing Q, Yates K, Vogt C, Qian Z, Frost MC, Zhao F. Increasing mechanical strength of gelatin hydrogels by divalent metal ion removal. Sci Rep 2014; 4:4706. [PMID: 24736500 PMCID: PMC3988488 DOI: 10.1038/srep04706] [Citation(s) in RCA: 222] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 03/28/2014] [Indexed: 01/01/2023] Open
Abstract
The usage of gelatin hydrogel is limited due to its instability and poor mechanical properties, especially under physiological conditions. Divalent metal ions present in gelatin such as Ca(2+) and Fe(2+) play important roles in the gelatin molecule interactions. The objective of this study was to determine the impact of divalent ion removal on the stability and mechanical properties of gelatin gels with and without chemical crosslinking. The gelatin solution was purified by Chelex resin to replace divalent metal ions with sodium ions. The gel was then chemically crosslinked by 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC). Results showed that the removal of divalent metal ions significantly impacted the formation of the gelatin network. The purified gelatin hydrogels had less interactions between gelatin molecules and form larger-pore network which enabled EDC to penetrate and crosslink the gel more efficiently. The crosslinked purified gels showed small swelling ratio, higher crosslinking density and dramatically increased storage and loss moduli. The removal of divalent ions is a simple yet effective method that can significantly improve the stability and strength of gelatin hydrogels. The in vitro cell culture demonstrated that the purified gelatin maintained its ability to support cell attachment and spreading.
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Affiliation(s)
- Qi Xing
- Stem Cell and Tissue Engineering Lab, Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931
| | - Keegan Yates
- Stem Cell and Tissue Engineering Lab, Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931
| | - Caleb Vogt
- Stem Cell and Tissue Engineering Lab, Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931
| | - Zichen Qian
- Stem Cell and Tissue Engineering Lab, Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931
| | - Megan C. Frost
- Polymer and Biomaterial Lab, Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931
| | - Feng Zhao
- Stem Cell and Tissue Engineering Lab, Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931
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Aberle T, Franke K, Rist E, Benz K, Schlosshauer B. Cell-type specific four-component hydrogel. PLoS One 2014; 9:e86740. [PMID: 24475174 PMCID: PMC3903574 DOI: 10.1371/journal.pone.0086740] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 12/17/2013] [Indexed: 12/13/2022] Open
Abstract
In the field of regenerative medicine we aim to develop implant matrices for specific tissue needs. By combining two per se, cell-permissive gel systems with enzymatic crosslinkers (gelatin/transglutaminase and fibrinogen/thrombin) to generate a blend (technical term: quattroGel), an unexpected cell-selectivity evolved. QuattroGels were porous and formed cavities in the cell diameter range, possessed gelation kinetics in the minute range, viscoelastic properties and a mechanical strength appropriate for general cell adhesion, and restricted diffusion. Cell proliferation of endothelial cells, chondrocytes and fibroblasts was essentially unaffected. In contrast, on quattroGels neither endothelial cells formed vascular tubes nor did primary neurons extend neurites in significant amounts. Only chondrocytes differentiated properly as judged by collagen isoform expression. The biophysical quattroGel characteristics appeared to leave distinct cell processes such as mitosis unaffected and favored differentiation of sessile cells, but hampered differentiation of migratory cells. This cell-type selectivity is of interest e.g. during articular cartilage or invertebral disc repair, where pathological innervation and angiogenesis represent adverse events in tissue engineering.
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Affiliation(s)
- Timo Aberle
- Naturwissenschaftliches und Medizinisches Institut an der Universität Tübingen, Reutlingen, Germany
| | - Katrin Franke
- Naturwissenschaftliches und Medizinisches Institut an der Universität Tübingen, Reutlingen, Germany
| | - Elke Rist
- Naturwissenschaftliches und Medizinisches Institut an der Universität Tübingen, Reutlingen, Germany
| | - Karin Benz
- Naturwissenschaftliches und Medizinisches Institut an der Universität Tübingen, Reutlingen, Germany
| | - Burkhard Schlosshauer
- Naturwissenschaftliches und Medizinisches Institut an der Universität Tübingen, Reutlingen, Germany
- * E-mail:
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Li C, Jin J, Liu J, Xu X, Yin J. Improving hemocompatibility of polypropylene via surface-initiated atom transfer radical polymerization for covalently coupling BSA. RSC Adv 2014. [DOI: 10.1039/c4ra03652b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Bovine serum albumin modified polypropylene for hemocompatibility was fabricated via surface-initiated atom transfer radical polymerization.
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Affiliation(s)
- Chunming Li
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, PR China
- Graduate University of Chinese Academy of Sciences
| | - Jing Jin
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, PR China
| | - Jingchuan Liu
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, PR China
| | - Xiaodong Xu
- Polymer Materials Research Center
- Key Laboratory of Superlight Materials and Surface Technology
- Ministry of Education
- College of Materials Science and Chemical Engineering
- Harbin Engineering University
| | - Jinghua Yin
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, PR China
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He F, Luo B, Yuan S, Liang B, Choong C, Pehkonen SO. PVDF film tethered with RGD-click-poly(glycidyl methacrylate) brushes by combination of direct surface-initiated ATRP and click chemistry for improved cytocompatibility. RSC Adv 2014. [DOI: 10.1039/c3ra44789h] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Palacios-Cuesta M, Cortajarena AL, García O, Rodríguez-Hernández J. Versatile Functional Microstructured Polystyrene-Based Platforms for Protein Patterning and Recognition. Biomacromolecules 2013; 14:3147-54. [DOI: 10.1021/bm400771y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Marta Palacios-Cuesta
- Department of Chemistry and
Properties of Polymers, Instituto de Ciencia y Tecnología de Polímeros, (ICTP-CSIC), Juan de la Cierva
3, 28006 Madrid, Spain
| | - Aitziber L. Cortajarena
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia), Cantoblanco, 28049 Madrid, Spain and CNB-CSIC-IMDEA Nanociencia
Associated Unit “Unidad de Nanobiotecnología”
| | - Olga García
- Department of Chemistry and
Properties of Polymers, Instituto de Ciencia y Tecnología de Polímeros, (ICTP-CSIC), Juan de la Cierva
3, 28006 Madrid, Spain
| | - Juan Rodríguez-Hernández
- Department of Chemistry and
Properties of Polymers, Instituto de Ciencia y Tecnología de Polímeros, (ICTP-CSIC), Juan de la Cierva
3, 28006 Madrid, Spain
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Palacios M, García O, Rodríguez-Hernández J. Constructing robust and functional micropatterns on polystyrene surfaces by using deep UV irradiation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:2756-2763. [PMID: 23363393 DOI: 10.1021/la304931x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We report the preparation of different surface patterns based on the photo-cross-linking/degradation kinetics of polystyrene (PS) by using UV light. Upon exposure to UV light, PS can be initially cross-linked, whereas an excess of the exposure time or intensity provokes the degradation of the material. Typically photolithography employs either positive or negative photoresist layers that upon removal of either the exposed or the nonexposed areas transfer the pattern of the mask. Herein, we present a system that can be both negative and positive depending on several aspects, including the irradiation time, intensity, or presence of absorbing active species (photoinitiators) using a general setup. As a result of the optimization of the time of exposure and the use of an appropriate cover or the incorporation of an appropriate amount of photoinitiator (in this particular case IRG 651), different tailor-made surface patterns can be obtained. Moreover, changes of the chemical composition of the polystyrene using, for instance, block copolymers can lead to surface patterns with variable functional groups. In this study we describe the formation of surface patterns using polystyrene-block-poly(2,3,4,5,6-pentafluorostyrene) block copolymers. The introduction of fluorinated moieties clearly modifies the wettability of the films when compared with that of the same structures obtained with PS. As a consequence we present herein a patterning methodology that can simultaneously vary not only the morphology but also the surface chemical composition.
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Affiliation(s)
- Marta Palacios
- Department of Chemistry and Properties of Polymers, Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
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Liu Y, Yang Tan TT, Yuan S, Choong C. Multifunctional P(PEGMA)–REDV conjugated titanium surfaces for improved endothelial cell selectivity and hemocompatibility. J Mater Chem B 2013; 1:157-167. [DOI: 10.1039/c2tb00014h] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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