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Dąbkowska M, Stukan I, Kosiorowska A, Szatanik A, Łuczkowska K, Machalińska A, Machaliński B. In vitro and in vivo characterization of human serum albumin-based PEGylated nanoparticles for BDNF and NT3 codelivery. Int J Biol Macromol 2024; 265:130726. [PMID: 38490392 DOI: 10.1016/j.ijbiomac.2024.130726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 02/28/2024] [Accepted: 03/06/2024] [Indexed: 03/17/2024]
Abstract
The utilization of neurotrophins in medicine shows significant potential for addressing neurodegenerative conditions, such as age-related macular degeneration (AMD). However, the therapeutic use of neurotrophins has been restricted due to their short half-life. Here, we aimed to synthesize PEGylated nanoparticles based on electrostatic-driven interactions between human serum albumin (HSA), a carrier for adsorption; neurotrophin-3 (NT3); and brain-derived neurotrophic factor (BDNF). Electrophoretic (ELS) and multi-angle dynamic light scattering (MADLS) revealed that the PEGylated HSA-NT3-BDNF nanoparticles ranged from 10 to 430 nm in diameter and exhibited a low polydispersity index (<0.4) and a zeta potential of -8 mV. Based on microscale thermophoresis (MST), the estimated dissociation constant (Kd) from the HSA molecule of BDNF was 1.6 μM, and the Kd of NT3 was 732 μM. The nanoparticles were nontoxic toward ARPE-19 and L-929 cells in vitro and efficiently delivered BDNF and NT3. Based on the biodistribution of neurotrophins after intravitreal injection into BALB/c mice, both nanoparticles were gradually released in the mouse vitreous body within 28 days. PEGylated HSA-NT3-BDNF nanoparticles stabilize neurotrophins and maintain this characteristic in vivo. Thus, given the simplicity of the system, the nanoparticles may enhance the treatment of a variety of neurological disorders in the future.
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Affiliation(s)
- Maria Dąbkowska
- Independent Laboratory of Pharmacokinetic and Clinical Pharmacy, Rybacka 1, 71-899 Szczecin, Poland.
| | - Iga Stukan
- Department of General Pathology, Pomeranian Medical University, Rybacka 1, 70-111 Szczecin, Poland
| | - Alicja Kosiorowska
- Independent Laboratory of Pharmacokinetic and Clinical Pharmacy, Rybacka 1, 71-899 Szczecin, Poland; Department of General Pathology, Pomeranian Medical University, Rybacka 1, 70-111 Szczecin, Poland
| | - Alicja Szatanik
- Independent Laboratory of Pharmacokinetic and Clinical Pharmacy, Rybacka 1, 71-899 Szczecin, Poland
| | - Karolina Łuczkowska
- Department of General Pathology, Pomeranian Medical University, Rybacka 1, 70-111 Szczecin, Poland
| | - Anna Machalińska
- First Department of Ophthalmology, Pomeranian Medical University, 70-111 Szczecin, Poland
| | - Bogusław Machaliński
- Department of General Pathology, Pomeranian Medical University, Rybacka 1, 70-111 Szczecin, Poland
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Dąbkowska M, Kosiorowska A, Machaliński B. The Impact of Serum Protein Adsorption on PEGylated NT3-BDNF Nanoparticles-Distribution, Protein Release, and Cytotoxicity in a Human Retinal Pigmented Epithelial Cell Model. Pharmaceutics 2023; 15:2236. [PMID: 37765206 PMCID: PMC10537189 DOI: 10.3390/pharmaceutics15092236] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/16/2023] [Accepted: 08/23/2023] [Indexed: 09/29/2023] Open
Abstract
The adsorption of biomolecules on nanoparticles' surface ultimately depends on the intermolecular forces, which dictate the mutual interaction transforming their physical, chemical, and biological characteristics. Therefore, a better understanding of the adsorption of serum proteins and their impact on nanoparticle physicochemical properties is of utmost importance for developing nanoparticle-based therapies. We investigated the interactions between potentially therapeutic proteins, neurotrophin 3 (NT3), brain-derived neurotrophic factor (BDNF), and polyethylene glycol (PEG), in a cell-free system and a retinal pigmented epithelium cell line (ARPE-19). The variance in the physicochemical properties of PEGylated NT3-BDNF nanoparticles (NPs) in serum-abundant and serum-free systems was studied using transmission electron microscopy, atomic force microscopy, multi-angle dynamic, and electrophoretic light scattering. Next, we compared the cellular response of ARPE-19 cells after exposure to PEGylated NT3-BDNF NPs in either a serum-free or complex serum environment by investigating protein release and cell cytotoxicity using ultracentrifuge, fluorescence spectroscopy, and confocal microscopy. After serum exposure, the decrease in the aggregation of PEGylated NT3-BDNF NPs was accompanied by increased cell viability and BDNF/NT3 in vitro release. In contrast, in a serum-free environment, the appearance of positively charged NPs with hydrodynamic diameters up to 900 nm correlated with higher cytotoxicity and limited BDNF/NT3 release into the cell culture media. This work provides new insights into the role of protein corona when considering the PEGylated nano-bio interface with implications for cytotoxicity, NPs' distribution, and BDNF and NT3 release profiles in the in vitro setting.
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Affiliation(s)
- Maria Dąbkowska
- Independent Laboratory of Pharmacokinetic and Clinical Pharmacy, Rybacka 1, 70-204 Szczecin, Poland;
| | - Alicja Kosiorowska
- Independent Laboratory of Pharmacokinetic and Clinical Pharmacy, Rybacka 1, 70-204 Szczecin, Poland;
- Department of General Pathology, Pomeranian Medical University, Rybacka 1, 70-204 Szczecin, Poland;
| | - Bogusław Machaliński
- Department of General Pathology, Pomeranian Medical University, Rybacka 1, 70-204 Szczecin, Poland;
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Fang C, Zhang P, Rajabzadeh S, Kato N, Matsuyama H. One step surfactant entrapment onto PVDF hollow fiber membrane surface by the TIPS process using a triple-layer orifice spinneret. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Lim H, Park Y, Seo Y, Park H, Cho YK, Jung D. Surface modification of polystyrene Petri dishes by plasma polymerized 4,7,10-trioxa-1,13-tridecanediamine for enhanced culturing and migration of bovine aortic endothelial cells. BIOFOULING 2020; 36:816-824. [PMID: 32942906 DOI: 10.1080/08927014.2020.1821878] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/31/2020] [Accepted: 08/31/2020] [Indexed: 06/11/2023]
Abstract
Plasma surface modification is an effective method for changing material properties to control cell behavior on a surface. This study investigates the efficiency of a plasma polymerized 4,7,10-trioxa-1,13-tridecanediamine (ppTTDDA) film coated on a polystyrene (PS) Petri dish, which is a biocompatible surface with carbon- and oxygen-based chemical species. The adhesion, proliferation, and migration properties of bovine aortic endothelial cells (BAECs) were profoundly enhanced in the ppTTDDA-coated PS Petri dishes without extracellular matrix (ECM) proteins, when compared with the uncoated PS Petri dishes. These observations indicate that ppTTDDA-coated PS Petri dishes can directly interact with cells, regardless of cell adhesion molecules. The increased cell affinity was attributed to the high concentration of carboxyl group on the surface of the ppTTDDA film. Such a carboxyl surface showed an excellent ability to promote culturing of BAECs. Plasma surface modification techniques are effective in improving biocompatibility and provide a surface environment for cell culture.
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Affiliation(s)
- Hyuna Lim
- Department of Physics, Institute of Basic Science, Brain Korea 21 Physics Research Division, Sungkyunkwan University, Suwon, South Korea
| | - Yoonsoo Park
- Department of Physics, Institute of Basic Science, Brain Korea 21 Physics Research Division, Sungkyunkwan University, Suwon, South Korea
| | - Youngsik Seo
- Department of Molecular Biology and Institute of Nanosensor and Biotechnology, Dankook University, Cheonan, South Korea
| | - Heonyong Park
- Department of Molecular Biology and Institute of Nanosensor and Biotechnology, Dankook University, Cheonan, South Korea
| | - Yong Ki Cho
- Heat Treatment R&D Group, Korea Institute of Industrial Technology, Incheon, South Korea
| | - Donggeun Jung
- Department of Physics, Institute of Basic Science, Brain Korea 21 Physics Research Division, Sungkyunkwan University, Suwon, South Korea
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5
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Sun C, Zhu D, Jia H, Yang C, Zheng Z, Wang X. Bioinspired Hydrophobic Cellulose Nanocrystal Composite Films as Organic-Solvent-Responsive Structural-Color Rewritable Papers. ACS APPLIED MATERIALS & INTERFACES 2020; 12:26455-26463. [PMID: 32419444 DOI: 10.1021/acsami.0c04785] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Lots of beetles, moths, and birds in the natural world present stunning unique structural colors as well as excellent hydrophobic performances. Herein, a novel bioinspired variable structural-color film with organic-solvent responsiveness and surface hydrophobicity was fabricated. Cellulose nanocrystals (CNCs) provided structural color with left-handed helicity. PEG-PPG-PEG triblock copolymers (PPPTCs) were blended with CNCs, giving rise to the organic-solvent-responsive structural color and wider red-shift window of the reflectance peak. The color of the film could be regulated repeatedly under the stimulus of cyclohexanone with an obvious red shift up to 107 nm, corresponding to a macroscopic color change from blue to yellow. Low-surface-energy compound hexadecyltrimethoxysilane (HDTMS) was covalently grafted on the surface in a one-step method to introduce hydrophobicity, successfully preventing the effect of water on the ordered nanostructure. Based on the bionics principle, the as-prepared CNC/PPPTC nanocomposite films with variable structural colors and hydrophobicity are beneficial to their prospective applications in display screens, rewritable hydrophobic structural-color-changing paper, biomimetic sensors, and so forth.
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Affiliation(s)
- Chengyuan Sun
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Dandan Zhu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Haiyan Jia
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Chongchong Yang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Zhen Zheng
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Xinling Wang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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Wancura MM, Talanker M, Toubbeh S, Bryan A, Cosgriff-Hernandez E. Bioactive hydrogel coatings of complex substrates using diffusion-mediated redox initiation. J Mater Chem B 2020; 8:4289-4298. [PMID: 32322860 PMCID: PMC9207961 DOI: 10.1039/d0tb00055h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Hydrogels have long been established as materials with tunable stiffness and chemistry that enable controlled cellular interactions. When applied as coatings, hydrogels can be used to introduce biofunctionality to medical devices with minimal effect on bulk properties. However, it remains challenging to uniformly apply hydrogel coatings to three dimensional geometries without substantially changing the manufacturing process and potentially affecting device function. Herein, we report a new redox-based crosslinking method for applying conformable hydrogel coatings with tunable thickness and chemistry. This new diffusion-mediated strategy of redox initiation and hydrogel crosslinking enabled coating of a variety of three dimensional substrates without changing the primary fabrication process. Following adsorption of the reducing agent to the construct, hydrogel coating thickness was readily controlled by immersion time with desorption and diffusion of the reducing agent initiating hydrogel crosslinking from the surface. The process was used to generate a range of hydrogel properties by varying the macromer molecular weight and concentration. In addition, we demonstrated that these coatings can be applied sequentially to generate multilayered constructs with distinct features. Finally, incorporation of proteins into the bulk of the hydrogel coating or as a final surface layer permitted the controlled introduction of bioactivity that supported cell attachment. This work provides a versatile method for assembling bioactive coatings with a simple post-fabrication process that is amenable to diverse geometric substrates and chemistries.
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Affiliation(s)
- Megan M. Wancura
- Department of Chemistry, The University of Texas at Austin, Austin TX 78712, USA
| | - Michael Talanker
- Department of Biomedical Engineering, The University of Texas at Austin, Austin TX 78712, USA
| | - Shireen Toubbeh
- Department of Biomedical Engineering, The University of Texas at Austin, Austin TX 78712, USA
| | - Alex Bryan
- Department of Biomedical Engineering, The University of Texas at Austin, Austin TX 78712, USA
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7
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Sun W, Liu W, Wu Z, Chen H. Chemical Surface Modification of Polymeric Biomaterials for Biomedical Applications. Macromol Rapid Commun 2020; 41:e1900430. [DOI: 10.1002/marc.201900430] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 02/08/2020] [Accepted: 02/16/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Wei Sun
- College of ChemistryChemical Engineering and Materials ScienceCollaborative Innovation Center for New Type Urbanization and Social Governance of Jiangsu ProvinceSoochow University Suzhou 215123 P. R. China
| | - Wenying Liu
- College of ChemistryChemical Engineering and Materials ScienceCollaborative Innovation Center for New Type Urbanization and Social Governance of Jiangsu ProvinceSoochow University Suzhou 215123 P. R. China
| | - Zhaoqiang Wu
- College of ChemistryChemical Engineering and Materials ScienceCollaborative Innovation Center for New Type Urbanization and Social Governance of Jiangsu ProvinceSoochow University Suzhou 215123 P. R. China
| | - Hong Chen
- College of ChemistryChemical Engineering and Materials ScienceCollaborative Innovation Center for New Type Urbanization and Social Governance of Jiangsu ProvinceSoochow University Suzhou 215123 P. R. China
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van Gaal RC, van Sprang JF, Borneman Z, Dankers PYW. Development of Poor Cell Adhesive Immersion Precipitation Membranes Based on Supramolecular Bis-Urea Polymers. Macromol Biosci 2019; 20:e1900277. [PMID: 31885206 DOI: 10.1002/mabi.201900277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 11/19/2019] [Indexed: 11/07/2022]
Abstract
A variety of biomedical applications requires tailored membranes; fabrication through a mix-and-match approach is simple and desired. Polymers based on supramolecular bis-urea (BU) moieties are capable of modular integration through directed non-covalent stacking. Here, it is proposed that non-cell adhesive properties can be introduced in polycaprolactone-BU-based membranes by the addition of poly(ethylene glycol) (PEG)-BU during immersion precipitation membrane fabrication, while unmodified PEG is not retained in the membrane. PEG-BU addition results in denser membranes with a similar pore size compared to pristine membranes, while PEG addition induces defect formation. Infrared spectroscopy and surface hydrophobicity measurements indicate that PEG-BU is retained during membrane processing. Additionally, PEG-BU incorporation successfully leads to poor cell adhesive surfaces. No evidence is observed to indicate PEG retention. The results obtained indicate that the BU system enables intimate mixing of BU-modified polymers after processing. Collectively, the results provide the first steps toward BU-based immersion precipitated supramolecular membranes for biomedical applications.
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Affiliation(s)
- Ronald C van Gaal
- Department of Biomedical Engineering, Laboratory of Chemical Biology, and Institute for Complex Molecular Systems, Eindhoven University of Technology, P. O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Johnick F van Sprang
- Department of Biomedical Engineering, Laboratory of Chemical Biology, and Institute for Complex Molecular Systems, Eindhoven University of Technology, P. O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Zandrie Borneman
- Department of Chemical Engineering and Chemistry, Membrane Materials and Processes, Eindhoven University of Technology, P. O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Patricia Y W Dankers
- Department of Biomedical Engineering, Laboratory of Chemical Biology, and Institute for Complex Molecular Systems, Eindhoven University of Technology, P. O. Box 513, 5600 MB, Eindhoven, The Netherlands
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Saleem S, Rangou S, Abetz C, Filiz V, Abetz V. Isoporous Membranes from Novel Polystyrene- b-poly(4-vinylpyridine)- b-poly(solketal methacrylate) (PS- b-P4VP- b-PSMA) Triblock Terpolymers and Their Post-Modification. Polymers (Basel) 2019; 12:E41. [PMID: 31888039 PMCID: PMC7023574 DOI: 10.3390/polym12010041] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 12/17/2019] [Accepted: 12/19/2019] [Indexed: 11/22/2022] Open
Abstract
In this paper, the formation of nanostructured triblock terpolymer polystyrene-b-poly(4-vinylpyridine)-b-poly(solketal methacrylate) (PS-b-P4VP-b-PSMA), polystyrene-b-poly(4-vinylpyridine)-b-poly(glyceryl methacrylate) (PS-b-P4VP-b-PGMA) membranes via block copolymer self-assembly followed by non-solvent-induced phase separation (SNIPS) is demonstrated. An increase in the hydrophilicity was observed after treatment of non-charged isoporous membranes from PS-b-P4VP-b-PSMA, through acidic hydrolysis of the hydrophobic poly(solketal methacrylate) PSMA block into a hydrophilic poly(glyceryl methacrylate) PGMA block, which contains two neighbored hydroxyl (-OH) groups per repeating unit. For the first time, PS-b-P4VP-b-PSMA triblock terpolymers with varying compositions were successfully synthesized by sequential living anionic polymerization. Composite membranes of PS-b-P4VP-b-PSMA and PS-b-P4VP-b-PGMA triblock terpolymers with ordered hexagonally packed cylindrical pores were developed. The morphology of the membranes was studied with scanning electron microscopy (SEM) and atomic force microscopy (AFM). PS-b-P4VP-b-PSMA triblock terpolymer membranes were further treated with acid (1 M HCl) to get polystyrene-b-poly(4-vinylpyridine)-b-poly(glyceryl methacrylate) (PS-b-P4VP-b-PGMA). Notably, the pristine porous membrane structure could be maintained even after acidic hydrolysis. It was found that membranes containing hydroxyl groups (PS-b-P4VP-b-PGMA) show a stable and higher water permeance than membranes without hydroxyl groups (PS-b-P4VP-b-PSMA), what is due to the increase in hydrophilicity. The membrane properties were analyzed further by contact angle, protein retention, and adsorption measurements.
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Affiliation(s)
- Sarah Saleem
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany; (S.S.); (S.R.); (C.A.); (V.F.)
| | - Sofia Rangou
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany; (S.S.); (S.R.); (C.A.); (V.F.)
| | - Clarissa Abetz
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany; (S.S.); (S.R.); (C.A.); (V.F.)
| | - Volkan Filiz
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany; (S.S.); (S.R.); (C.A.); (V.F.)
| | - Volker Abetz
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str.1, 21502 Geesthacht, Germany; (S.S.); (S.R.); (C.A.); (V.F.)
- Institute of Physical Chemistry, Universität Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
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Wang D, Wang Y, Zhao G, Zhuang J, Wu W. Improving systemic circulation of paclitaxel nanocrystals by surface hybridization of DSPE-PEG2000. Colloids Surf B Biointerfaces 2019; 182:110337. [DOI: 10.1016/j.colsurfb.2019.06.066] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 06/16/2019] [Accepted: 06/28/2019] [Indexed: 01/15/2023]
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Zhang Z, Orski S, Woys AM, Yuan G, Zarraga IE, Wagner NJ, Liu Y. Adsorption of polysorbate 20 and proteins on hydrophobic polystyrene surfaces studied by neutron reflectometry. Colloids Surf B Biointerfaces 2018; 168:94-102. [DOI: 10.1016/j.colsurfb.2018.04.036] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 03/28/2018] [Accepted: 04/16/2018] [Indexed: 11/28/2022]
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12
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Lin J, Zhang H, Morovati V, Dargazany R. PEGylation on mixed monolayer gold nanoparticles: Effect of grafting density, chain length, and surface curvature. J Colloid Interface Sci 2017; 504:325-333. [DOI: 10.1016/j.jcis.2017.05.046] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Accepted: 05/15/2017] [Indexed: 01/28/2023]
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Gamerith C, Gajda M, Ortner A, Acero EH, Guebitz GM, Ulbricht M. Enzymatic hydrolysis of poly(ethyleneterephthalate) used for and analysed by pore modification of track-etched membranes. N Biotechnol 2017; 39:42-50. [DOI: 10.1016/j.nbt.2017.06.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 06/20/2017] [Accepted: 06/23/2017] [Indexed: 10/19/2022]
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Green synthesis of capped gold nanoparticles and their effect on Gram-positive and Gram-negative bacteria. Future Sci OA 2017; 3:FSO239. [PMID: 29134123 PMCID: PMC5674245 DOI: 10.4155/fsoa-2017-0062] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 07/31/2017] [Indexed: 11/17/2022] Open
Abstract
Aim We report synthesis of capped gold nanoparticles (C-AuNPs) of ≈20-30 nm by reducing HAuCl4 with flower and leaf extracts of Ocimum tenuiflorum, leaves of Azadirachta indica and Mentha spicata and peel of Citrus sinensis plants. Methods Atomic force microscopy (AFM) and transmission electron microscopy (TEM) determined their size, shape and topographical structures. The C-AuNPs with UV-Vis spectrophotometer produced a maximum absorption within 530-535 nm wavelengths. Their Fourier transform IR stretching frequencies, from 450 to 4000 cm-1, have inferred HAuCl4 reduction to Au. Results The 512 and 600 μgml-1 C-AuNP MICs were expressed on antimicrobial strains Staphylococcus aureus, Pseudomonas aeruginosa and Klebsiella pneumoniae, respectively. Conclusion The chosen plant extracts have reduced the Au3+ to Au0 with simultaneous in situ capping with bacteria inhibiting activities. Green routes for C-AuNP synthesis could be an asset for several other biomedical and bioengineering applications.
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15
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Wang Z, Luan Y, Gan T, Gong X, Chen H, Ngai T. Long-range interactions between protein-coated particles and POEGMA brush layers in a serum environment. Colloids Surf B Biointerfaces 2017; 150:279-287. [DOI: 10.1016/j.colsurfb.2016.10.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Accepted: 10/23/2016] [Indexed: 12/26/2022]
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16
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Lakkireddy HR, Bazile D. Building the design, translation and development principles of polymeric nanomedicines using the case of clinically advanced poly(lactide(glycolide))-poly(ethylene glycol) nanotechnology as a model: An industrial viewpoint. Adv Drug Deliv Rev 2016; 107:289-332. [PMID: 27593265 DOI: 10.1016/j.addr.2016.08.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 08/19/2016] [Accepted: 08/27/2016] [Indexed: 12/16/2022]
Abstract
The design of the first polymeric nanoparticles could be traced back to the 1970s, and has thereafter received considerable attention, as evidenced by the significant increase of the number of articles and patents in this area. This review article is an attempt to take advantage of the existing literature on the clinically tested and commercialized biodegradable PLA(G)A-PEG nanotechnology as a model to propose quality building and outline translation and development principles for polymeric nano-medicines. We built such an approach from various building blocks including material design, nano-assembly - i.e. physicochemistry of drug/nano-object association in the pharmaceutical process, and release in relevant biological environment - characterization and identification of the quality attributes related to the biopharmaceutical properties. More specifically, as envisaged in a translational approach, the reported data on PLA(G)A-PEG nanotechnology have been structured into packages to evidence the links between the structure, physicochemical properties, and the in vitro and in vivo performances of the nanoparticles. The integration of these bodies of knowledge to build the CMC (Chemistry Manufacturing and Controls) quality management strategy and finally support the translation to proof of concept in human, and anticipation of the industrialization takes into account the specific requirements and biopharmaceutical features attached to the administration route. From this approach, some gaps are identified for the industrial development of such nanotechnology-based products, and the expected improvements are discussed. The viewpoint provided in this article is expected to shed light on design, translation and pharmaceutical development to realize their full potential for future clinical applications.
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Rydberg HA, Yanez Arteta M, Berg S, Lindfors L, Sigfridsson K. Probing adsorption of DSPE-PEG2000 and DSPE-PEG5000 to the surface of felodipine and griseofulvin nanocrystals. Int J Pharm 2016; 510:232-9. [PMID: 27329674 DOI: 10.1016/j.ijpharm.2016.06.046] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 06/18/2016] [Indexed: 11/18/2022]
Abstract
Nanosized formulations of poorly water-soluble drugs show great potential due to improved bioavailability. In order to retain colloidal stability, the nanocrystals need to be stabilized. Here we explore the use of the poly(ethylene glycol) (PEG) conjugated phospholipids DSPE-PEG2000 and DSPE-PEG5000 as stabilizers of felodipine and griseofulvin nanocrystals. Nanocrystal stability and physicochemical properties were examined and the interaction between the PEGylated lipids and the nanocrystal surface as well as a macroscopic model surface was investigated. Using quartz crystal microbalance with dissipation monitoring both mass adsorption and the thickness of the adsorbed layer were estimated. The results indicate that the PEGylated lipids are adsorbed as flat layers of around 1-3nm, and that DSPE-PEG5000 forms a thicker layer compared with DSPE-PEG2000. In addition, the mass adsorption to the drug crystals and the model surface are seemingly comparable. Furthermore, both DSPE-PEG2000 and DSPE-PEG5000 rendered stable drug nanocrystals, with a somewhat higher surface binding and stability seen for DSPE-PEG2000. These results suggest DSPE-PEG2000 and DSPE-PEG5000 as efficient nanocrystal stabilizers, with DSPE-PEG2000 giving a somewhat higher surface coverage and superior colloidal stability, whereas DSPE-PEG5000 shows a more extended structure that may have advantages for prolongation of circulation time in vivo and facilitation for targeting modifications.
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Affiliation(s)
- Hanna A Rydberg
- Pharmaceutical Science, AstraZeneca R&D Gothenburg, S-431 83 Mölndal, Sweden
| | | | - Staffan Berg
- Pharmaceutical Science, AstraZeneca R&D Gothenburg, S-431 83 Mölndal, Sweden
| | - Lennart Lindfors
- Pharmaceutical Science, AstraZeneca R&D Gothenburg, S-431 83 Mölndal, Sweden
| | - Kalle Sigfridsson
- Pharmaceutical Science, AstraZeneca R&D Gothenburg, S-431 83 Mölndal, Sweden.
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van Almen GC, Talacua H, Ippel BD, Mollet BB, Ramaekers M, Simonet M, Smits AIPM, Bouten CVC, Kluin J, Dankers PYW. Development of Non-Cell Adhesive Vascular Grafts Using Supramolecular Building Blocks. Macromol Biosci 2015; 16:350-62. [DOI: 10.1002/mabi.201500278] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 10/08/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Geert C. van Almen
- Department of Biomedical Engineering; Laboratory of Chemical Biology, and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Hanna Talacua
- Department of Cardio-Thoracic Surgery; University Medical Center Utrecht; 3584 CX Utrecht The Netherlands
| | - Bastiaan D. Ippel
- Department of Biomedical Engineering; Laboratory of Chemical Biology, and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Björne B. Mollet
- Department of Biomedical Engineering; Laboratory of Chemical Biology, and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Mellany Ramaekers
- Department of Biomedical Engineering; Laboratory of Chemical Biology, and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Marc Simonet
- Department of Biomedical Engineering; Soft Tissue Biomechanics and Tissue Engineering and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Anthal I. P. M. Smits
- Department of Biomedical Engineering; Soft Tissue Biomechanics and Tissue Engineering and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Carlijn V. C. Bouten
- Department of Biomedical Engineering; Soft Tissue Biomechanics and Tissue Engineering and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Jolanda Kluin
- Department of Cardio-Thoracic Surgery; University Medical Center Utrecht; 3584 CX Utrecht The Netherlands
| | - Patricia Y. W. Dankers
- Department of Biomedical Engineering; Laboratory of Chemical Biology, and Institute for Complex Molecular Systems; Eindhoven University of Technology; P.O. Box 513 5600 MB Eindhoven The Netherlands
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Anti-fouling Coatings of Poly(dimethylsiloxane) Devices for Biological and Biomedical Applications. J Med Biol Eng 2015; 35:143-155. [PMID: 25960703 PMCID: PMC4414934 DOI: 10.1007/s40846-015-0029-4] [Citation(s) in RCA: 211] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 01/13/2014] [Indexed: 01/07/2023]
Abstract
Fouling initiated by nonspecific protein adsorption is a great challenge in biomedical applications, including biosensors, bioanalytical devices, and implants. Poly(dimethylsiloxane) (PDMS), a popular material with many attractive properties for device fabrication in the biomedical field, suffers serious fouling problems from protein adsorption due to its hydrophobic nature, which limits the practical use of PDMS-based devices. Effort has been made to develop biocompatible materials for anti-fouling coatings of PDMS. In this review, typical nonfouling materials for PDMS coatings are introduced and the associated basic anti-fouling mechanisms, including the steric repulsion mechanism and the hydration layer mechanism, are described. Understanding the relationships between the characteristics of coating materials and the accompanying anti-fouling mechanisms is critical for preparing PDMS coatings with desirable anti-fouling properties.
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Yu B, Jiang X, Yin J. The Interaction Between Amphiphilic Polymer Materials and Guest Molecules: Selective Adsorption and Its Related Applications. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400389] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Bing Yu
- State Key Laboratory for Metal Matrix Composite Materials, School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; Shanghai 200240 PR China
| | - Xuesong Jiang
- State Key Laboratory for Metal Matrix Composite Materials, School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; Shanghai 200240 PR China
| | - Jie Yin
- State Key Laboratory for Metal Matrix Composite Materials, School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; Shanghai 200240 PR China
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de Castro CE, Mattei B, Riske KA, Jäger E, Jäger A, Stepánek P, Giacomelli FC. Understanding the structural parameters of biocompatible nanoparticles dictating protein fouling. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:9770-9779. [PMID: 25068509 DOI: 10.1021/la502179f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The development of nanocarriers for biomedical applications requires that these nanocarriers have special properties, including resistance to nonspecific protein adsorption. In this study, the fouling properties of PLA- and PCL-based block copolymer nanoparticles (NPs) have been evaluated by placing them in contact with model proteins. Block copolymer NPs were produced through the self-assembly of PEOm-b-PLAn and PEOm-b-PCLn. This procedure yielded nanosized objects with distinct structural features dependent on the length of the hydrophobic and hydrophilic blocks and the volume ratio. The protein adsorption events were examined in relation to size, chain length, surface curvature, and hydrophilic chain density. Fouling by BSA and lysozyme was considerably reduced as the length of the hydrophilic PEO-stabilizing shell increases. In contrast to the case of hydrophilic polymer-grafted planar surfaces, the current investigations suggest that the hydrophilic chain density did not markedly influence protein fouling. The protein adsorption took place at the outer surface of the NPs since neither BSA nor lysozyme was able to diffuse within the hydrophilic layer due to geometric restrictions. Protein binding is an exothermic process, and it is modulated mainly by polymer features. The secondary structures of BSA and lysozyme were not affected by the adhesion phenomena.
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Affiliation(s)
- Carlos E de Castro
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC , Santo André, Brazil
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Parmar A, Chavda S, Bahadur P. Pluronic–cationic surfactant mixed micelles: Solubilization and release of the drug hydrochlorothiazide. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2013.09.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Peng B, Chu X, Li Y, Li D, Chen Y, Zhao J. Adsorption kinetics and stability of poly(ethylene oxide)-block-polystyrene micelles on polystyrene surface. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.08.064] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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24
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Sanan R, Mahajan RK. Polyethylene glycol assisted micellar, interfacial and phase separation studies of triblock copolymer–nonionic surfactant mixtures. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.05.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Peng B, Li Y, Zhao Z, Chen Y, Han CC. Facile surface modification of PVDF microfiltration membrane by strong physical adsorption of amphiphilic copolymers. J Appl Polym Sci 2013. [DOI: 10.1002/app.39516] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Bo Peng
- Laboratory of Polymer Physics and Chemistry; Institute of Chemistry, The Chinese Academy of Sciences; Beijing; 100190; People's Republic of China
| | - Yuyan Li
- Laboratory of Polymer Physics and Chemistry; Institute of Chemistry, The Chinese Academy of Sciences; Beijing; 100190; People's Republic of China
| | - Zhiguo Zhao
- Laboratory of Polymer Physics and Chemistry; Institute of Chemistry, The Chinese Academy of Sciences; Beijing; 100190; People's Republic of China
| | - Yongming Chen
- Laboratory of Polymer Physics and Chemistry; Institute of Chemistry, The Chinese Academy of Sciences; Beijing; 100190; People's Republic of China
| | - Charles C. Han
- Laboratory of Polymer Physics and Chemistry; Institute of Chemistry, The Chinese Academy of Sciences; Beijing; 100190; People's Republic of China
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Definition of formulation design space, in vitro bioactivity and in vivo biodistribution for hydrophilic drug loaded PLGA/PEO–PPO–PEO nanoparticles using OFAT experiments. Eur J Pharm Sci 2013; 49:65-80. [DOI: 10.1016/j.ejps.2013.02.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Revised: 01/13/2013] [Accepted: 02/12/2013] [Indexed: 11/21/2022]
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Surface Modification of Poly Ethylene Glycol to Resist Nonspecific Adsorption of Proteins. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2013. [DOI: 10.1016/s1872-2040(13)60638-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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28
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Giacomelli FC, Stepánek P, Schmidt V, Jäger E, Jäger A, Giacomelli C. Light scattering evidence of selective protein fouling on biocompatible block copolymer micelles. NANOSCALE 2012; 4:4504-4514. [PMID: 22688571 DOI: 10.1039/c2nr30623a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Selective protein fouling on block copolymer micelles with well-known potential for tumour-targeting drug delivery was evidenced by using dynamic light scattering measurements. The stability and interaction of block copolymer micelles with model proteins (BSA, IgG, lysozyme and CytC) is reported for systems featuring a hydrophobic (poly[2-(diisopropylamino)-ethyl methacrylate]) (PDPA) core and hydrophilic coronas comprising poly(ethylene oxide)/poly(glycerol monomethacrylate) (PEO-b-PG2MA) or poly[2-(methacryloyloxy)ethyl phosphorylcholine] (PMPC). The results revealed that protein size and hydrophilic chain density play important roles in the observed interactions. The PEO(113)-b-PG2MA(30)-b-PDPA(50) nanoparticles are stable and protein adsorption is prevented at all investigated protein environments. The successful protein-repellent characteristic of these nanoparticles is attributed to a high hydrophilic surface chain density (>0.1 chains per nm(2)) and to the length of the hydrophilic chains. On the other hand, although PMPC also has protein-repellent characteristics, the low surface chain density of the hydrophilic shell is supposed to enable interactions with small proteins. The PMPC(40)-b-PDPA(70) micelles are stable in BSA and IgG environments due to weak repulsion forces between PMPC and the proteins, to the hydration layer, and particularly to a size-effect where the large BSA (R(H) = 4.2 nm) and IgG (R(H) = 7.0 nm) do not easily diffuse within the PMPC shell. Conversely, a clear interaction was observed with the 2.1 nm radius lysozyme. The lysozyme protein can diffuse within the PMPC micellar shell towards the PDPA hydrophobic core in a process favored by its smaller size and the low hydrophilic PMPC surface chain density (∼0.049 chains per nm(2)) as compared to PEO-b-PG2MA (∼0.110 chains per nm(2)). The same behavior was not evidenced with the 2.3 nm radius positively charged CytC, probably due to its higher surface hydrophilicity and the consequent chemical incompatibility with PDPA.
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Affiliation(s)
- Fernando C Giacomelli
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-170 Santo André, Brazil.
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Schricker SR, Palacio MLB, Bhushan B. Designing nanostructured block copolymer surfaces to control protein adhesion. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2012; 370:2348-2380. [PMID: 22509062 PMCID: PMC7398454 DOI: 10.1098/rsta.2011.0484] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The profile and conformation of proteins that are adsorbed onto a polymeric biomaterial surface have a profound effect on its in vivo performance. Cells and tissue recognize the protein layer rather than directly interact with the surface. The chemistry and morphology of a polymer surface will govern the protein behaviour. So, by controlling the polymer surface, the biocompatibility can be regulated. Nanoscale surface features are known to affect the protein behaviour, and in this overview the nanostructure of self-assembled block copolymers will be harnessed to control protein behaviour. The nanostructure of a block copolymer can be controlled by manipulating the chemistry and arrangement of the blocks. Random, A-B and A-B-A block copolymers composed of methyl methacrylate copolymerized with either acrylic acid or 2-hydroxyethyl methacrylate will be explored. Using atomic force microscopy (AFM), the surface morphology of these block copolymers will be characterized. Further, AFM tips functionalized with proteins will measure the adhesion of that particular protein to polymer surfaces. In this manner, the influence of block copolymer morphology on protein adhesion can be measured. AFM tips functionalized with antibodies to fibronectin will determine how the surfaces will affect the conformation of fibronectin, an important parameter in evaluating surface biocompatibility.
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Affiliation(s)
- Scott R Schricker
- Restorative and Prosthetic Dentistry Section, College of Dentistry, Ohio State University, Columbus, 43210, USA.
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Jung J, Na K, Shin B, Kim O, Lee J, Yun K, Hyun J. A cell-repellent sulfonated PEG comb-like polymer for highly resolved cell micropatterns. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 19:161-73. [DOI: 10.1163/156856208783432507] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Jaeyeon Jung
- a Department of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul 151-742, South Korea
| | - Kyunga Na
- b Department of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul 151-742, South Korea
| | - Byungcheol Shin
- c Advanced Materials Division, Korea Research Institute of Chemical Technology, Daejeon 305-600, South Korea
| | - Okgene Kim
- d Department of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul 151-742, South Korea
| | - Jonghwan Lee
- e Department of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul 151-742, South Korea
| | - Kyusik Yun
- f Gachon BioNano Research Institute, Kyungwon University, Gyeonggi-Do 461-701, South Korea
| | - Jinho Hyun
- g Department of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul 151-742, South Korea; Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 151-742, South Korea
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31
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Srokowski EM, Blit PH, McClung WG, Brash JL, Santerre JP, Woodhouse KA. Platelet Adhesion and Fibrinogen Accretion on a Family of Elastin-Like Polypeptides. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:41-57. [DOI: 10.1163/092050609x12578498935594] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- E. M. Srokowski
- a Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - P. H. Blit
- b Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - W. G. McClung
- c Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada; Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - J. L. Brash
- d Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada; Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada; School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada
| | - J. P. Santerre
- e Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada; Department of Biomaterials, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - K. A. Woodhouse
- f Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada; Department of Chemical Engineering, Queen's University, Kingston, ON, Canada
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NCO-sP(EO-stat-PO) coatings on gold sensors--a QCM study of hemocompatibility. SENSORS 2011; 11:5253-69. [PMID: 22163899 PMCID: PMC3231391 DOI: 10.3390/s110505253] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2011] [Revised: 04/19/2011] [Accepted: 05/09/2011] [Indexed: 11/17/2022]
Abstract
The reliability of implantable blood sensors is often hampered by unspecific adsorption of plasma proteins and blood cells. This not only leads to a loss of sensor signal over time, but can also result in undesired host vs. graft reactions. Within this study we evaluated the hemocompatibility of isocyanate conjugated star shaped polytheylene oxide-polypropylene oxide co-polymers NCO-sP(EO-stat-PO) when applied to gold surfaces as an auspicious coating material for gold sputtered blood contacting sensors. Quartz crystal microbalance (QCM) sensors were coated with ultrathin NCO-sP(EO-stat-PO) films and compared with uncoated gold sensors. Protein resistance was assessed by QCM measurements with fibrinogen solution and platelet poor plasma (PPP), followed by quantification of fibrinogen adsorption. Hemocompatibility was tested by incubation with human platelet rich plasma (PRP). Thrombin antithrombin-III complex (TAT), β-thromboglobulin (β-TG) and platelet factor 4 (PF4) were used as coagulation activation markers. Furthermore, scanning electron microscopy (SEM) was used to visualize platelet adhesion to the sensor surfaces. Compared to uncoated gold sensors, NCO-sP(EO-stat-PO) coated sensors revealed significant better resistance against protein adsorption, lower TAT generation and a lower amount of adherent platelets. Moreover, coating with ultrathin NCO-sP(EO-stat-PO) films creates a cell resistant hemocompatible surface on gold that increases the chance of prolonged sensor functionality and can easily be modified with specific receptor molecules.
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Chang CM, Chiu LF, Wang PW, Shieh DB, Lee GB. A microfluidic system for fast detection of mitochondrial DNA deletion. LAB ON A CHIP 2011; 11:2693-2700. [PMID: 21727979 DOI: 10.1039/c1lc20317g] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This study reports an integrated microfluidic system capable of automatic extraction and analysis of mitochondrial DNA (mtDNA). Mitochondria are the energy production and metabolism centres of human and animal cells, which supply most of the energy for maintaining physiological functions and play an important role in the process of cell death. Because it lacks an effective repair system, mtDNA suffers much higher oxidative damage and usually harbours more mutations than nuclear DNA. Alterations of mtDNA have been reported to be strongly associated with mitochondrial dysfunction, mitochondria-related diseases, aging, and many important human diseases such as diabetes and cancers. Thus, an effective tool for automatic detection of mtDNA deletion is in great need. This study, therefore, proposed a microfluidic system integrating three enabling modules to perform the entire protocol for the detection of mtDNA deletion. Crucial processes which included mtDNA extraction, nucleic acid amplification, separation and detection of the target genes were automatically performed. When compared with traditional assays, the developed microfluidic system consumed fewer samples and reagents, achieved a higher mtDNA extraction rate, and could automate all the processes within a shorter period of time (150 minutes). It may provide a powerful tool for the analysis of mitochondria mutations in the near future.
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Affiliation(s)
- Chen-Min Chang
- Department of Engineering Science, National Cheng Kung University, Tainan, 701, Taiwan
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Aqueous block copolymer–surfactant mixtures—Surface tension, DLS and viscosity measurements and their utility in solubilization of hydrophobic drug and its controlled release. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2011.06.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Rosso M, Nguyen AT, de Jong E, Baggerman J, Paulusse JMJ, Giesbers M, Fokkink RG, Norde W, Schroën K, van Rijn CJM, Zuilhof H. Protein-repellent silicon nitride surfaces: UV-induced formation of oligoethylene oxide monolayers. ACS APPLIED MATERIALS & INTERFACES 2011; 3:697-704. [PMID: 21309535 DOI: 10.1021/am100985c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The grafting of polymers and oligomers of ethylene oxide onto surfaces is widely used to prevent nonspecific adsorption of biological material on sensors and membrane surfaces. In this report, we show for the first time the robust covalent attachment of short oligoethylene oxide-terminated alkenes (CH(3)O(CH(2)CH(2)O)(3)(CH(2))(11)-(CH═CH(2)) [EO(3)] and CH(3)O(CH(2)CH(2)O)(6)(CH(2))(11)-(CH═CH(2)) [EO(6)]) from the reaction of alkenes onto silicon-rich silicon nitride surfaces at room temperature using UV light. Reflectometry is used to monitor in situ the nonspecific adsorption of bovine serum albumin (BSA) and fibrinogen (FIB) onto oligoethylene oxide coated silicon-rich silicon nitride surfaces (EO(n)-Si(x)N(4), x > 3) in comparison with plasma-oxidized silicon-rich silicon nitride surfaces (SiO(y)-Si(x)N(4)) and hexadecane-coated Si(x)N(4) surfaces (C(16)-Si(x)N(4)). A significant reduction in protein adsorption on EO(n)-Si(x)N(4) surfaces was achieved, adsorption onto EO(3)-Si(x)N(4) and EO(6)-Si(x)N(4) were 0.22 mg m(-2) and 0.08 mg m(-2), respectively. The performance of the obtained EO(3) and EO(6) layers is comparable to those of similar, highly protein-repellent monolayers formed on gold and silver surfaces. EO(6)-Si(x)N(4) surfaces prevented significantly the adsorption of BSA (0.08 mg m(-2)). Atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), X-ray reflectivity and static water contact angle measurements were employed to characterize the modified surfaces. In addition, the stability of EO(6)-Si(x)N(4) surfaces in phosphate-buffered saline solution (PBS) and alkaline condition (pH 10) was studied. Prolonged exposure of the surfaces to PBS solution for 1 week or alkaline condition for 2 h resulted in only minor degradation of the ethylene oxide moieties and no oxidation of the Si(x)N(4) substrates was observed. Highly stable antifouling coatings on Si(x)N(4) surfaces significantly broaden the application potential of silicon nitride-coated microdevices, and in particular of microfabricated filtration membranes.
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Affiliation(s)
- Michel Rosso
- Laboratory of Organic Chemistry, Wageningen University, Dreijenplein 8, 6703 HB Wageningen, The Netherlands
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Tarnawski R, Ulbricht M. Amphiphilic gold nanoparticles: Synthesis, characterization and adsorption to PEGylated polymer surfaces. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2010.10.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Wang X, Schmidt DR, Joyce EJ, Kao WJ. Application of MS-based proteomics to study serum protein adsorption/absorption and complement C3 activation on poly(ethylene glycol) hydrogels. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2011; 22:1343-62. [PMID: 20594411 PMCID: PMC3855078 DOI: 10.1163/092050610x508400] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Although the interaction between cells and poly(ethylene glycol) (PEG) hydrogels is well documented, there lacks a thorough investigation into the adsorption of blood proteins on these surfaces which dictates the observed cellular and in vivo host response. Thus, a clear understanding of how surface-bound proteins mediate the unique biological property of PEG hydrogels is fundamentally important. The information obtained will also provide insights into future biomaterial design. In this study, several mass-spectrometrybased proteomic tools coupled with complementary immunoassays were employed to survey the complex surface-bound serum proteome. The adsorption of vitronectin, thrombin, fibrinogen and complement component C3 was significantly lower on PEG hydrogels than on tissue culture polystyrene (TCPS). Although PEG hydrogels mediated lower C3 adsorption than TCPS, the extent of C3 activation between the two surfaces was comparable. Adherent monocyte density was also significantly lower on PEG hydrogels as compared to TCPS. Taken together, these results support the critical role of the complement C3 in mediating monocyte adhesion on biomaterials. Thus we conclude that the biocompatibility of PEG hydrogels both in vitro and in vivo can be partly contributed to their limited C3 interaction and monocyte activity.
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Affiliation(s)
- Xintong Wang
- School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705, USA
| | - David R. Schmidt
- Department of Biomedical Engineering, College of Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Evan J. Joyce
- Department of Biomedical Engineering, College of Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - W. John Kao
- School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705, USA
- Department of Biomedical Engineering, College of Engineering, University of Wisconsin-Madison, Madison, WI, USA
- Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
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He XL, Nie PP, Sun YK, Wang Y, Dong YY, Chen L. Immobilization of galactose ligands on thermoresponsive culture surface and its influence on cell adhesion/detachment. J Colloid Interface Sci 2010; 350:471-9. [DOI: 10.1016/j.jcis.2010.07.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2010] [Revised: 07/08/2010] [Accepted: 07/09/2010] [Indexed: 12/01/2022]
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Poly(vinylpyrrolidone-b-styrene) block copolymers tethered surfaces for protein adsorption and cell adhesion regulation. Colloids Surf B Biointerfaces 2010; 79:452-9. [DOI: 10.1016/j.colsurfb.2010.05.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2010] [Revised: 04/30/2010] [Accepted: 05/03/2010] [Indexed: 11/19/2022]
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41
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Chang Y, Chu WL, Chen WY, Zheng J, Liu L, Ruaan RC, Higuchi A. A systematic SPR study of human plasma protein adsorption behavior on the controlled surface packing of self-assembled poly(ethylene oxide) triblock copolymer surfaces. J Biomed Mater Res A 2010; 93:400-8. [PMID: 19569222 DOI: 10.1002/jbm.a.32558] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A well-controlled biocompatible nonfouling surface is significant for biomedical requirements, especially for the improvement of biocompatibility. We demonstrate the low or nonbiofouling surfaces by coating hydrophobic-hydrophilic triblock copolymers of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) on the CH(3)-terminated self-assembled monolayer (SAM). Two types of copolymers are used to modify the surface, one with different PEO/PPO ratios ( approximately 20/80, 40/60, and 80/20, w/w) but the same PPO molecular weight ( approximately 2 k), the other with different copolymer MWs ( approximately 9, 11, and 15 k) but the same PEO/PPO ratio (80/20, w/w). In situ surface plasmon resonance (SPR) sensor is used to evaluate polymer adsorption on the SAMs and subsequent protein adsorption on the copolymer-treated surface. The effects of PEO-PPO-PEO molecular weight, PPO-to-PEO ratio, and ionic strength on protein adsorption from single protein solutions of fibrinogen, BSA, and complex mixed proteins are systematically investigated. A Pluronic F108 treated surface is highly resistant to nonspecific protein adsorption under the optimized conditions (MW of 15 k and PEO/PPO ratio of 80/20). This work demonstrates that the PEO-PPO-PEO polymer is able to achieve ultra low fouling surface via surface modification by controlling surface packing density of polymers (molecular weight, hydrophobic/hydrophilic ratio, and hydrophilic group coverage).
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Affiliation(s)
- Yung Chang
- Department of Chemical Engineering, Chung Yuan Christian University, Jhong-Li, Taoyuan 320, Taiwan.
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42
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Poly(L-lysine)-grafted-poly(ethylene glycol)-based surface-chemical gradients. Preparation, characterization, and first applications. Biointerphases 2010; 1:156-65. [PMID: 20408629 DOI: 10.1116/1.2431704] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A simple dipping process has been used to prepare PEGylated surface gradients from the polycationic polymer poly(L-lysine), grafted with poly(ethylene glycol) (PLL-g-PEG), on metal oxide substrates, such as TiO(2) and Nb(2)O(5). PLL-g-PEG coverage gradients were prepared during an initial, controlled immersion and characterized with variable angle spectroscopic ellipsometry and x-ray photoelectron spectroscopy. Gradients with a linear change in thickness and coverage were generated by the use of an immersion program based on an exponential function. These single-component gradients were used to study the adsorption of proteins of different sizes and shapes, namely, albumin, immunoglobulin G, and fibrinogen. The authors have shown that the density and size of defects in the PLL-g-PEG adlayer determine the amount of protein that is adsorbed at a certain adlayer thickness. In a second step, single-component gradients of functionalized PLL-g-PEG were backfilled with nonfunctionalized PLL-g-PEG to generate two-component gradients containing functional groups, such as biotin, in a protein-resistant background. Such gradients were combined with a patterning technique to generate individually addressable spots on a gradient surface. The surfaces generated in this way show promise as a useful and versatile biochemical screening tool and could readily be incorporated into a method for studying the behavior of cells on functionalized surfaces.
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Yang Q, Kaul C, Ulbricht M. Anti-nonspecific protein adsorption properties of biomimetic glycocalyx-like glycopolymer layers: effects of glycopolymer chain density and protein size. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:5746-5752. [PMID: 20104921 DOI: 10.1021/la903895q] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In many cases, biomaterials surfaces are desired to be resistant to protein adsorption. A system fulfilling this task in nature is the so-called glycocalyx. The glycocalyx is an outer layer on the cell membrane with bound glycoproteins and glycolipids, exposing a pattern of carbohydrate groups. There is a growing interest to mimic this glycocalyx layer to have a tool to overcome the problems with uncontrolled protein adsorption on biomaterials. In this work a glycocalyx-like layer is artificially imitated by surface-initiated atom transfer radical polymerization (ATRP) of a glycomonomer, D-gluconamidoethyl methacrylate (GAMA), from a mixed self-assembled monolayer (SAM) of an ATRP initiator-immobilized hydroxyl-terminated thiol and a methyl-terminated thiol as diluent. Fourier transform infrared spectroscopy (FT/IR-ATR), contact angle, and ellipsometry measurements were employed to confirm the grafting of the glycopolymer. The anti-nonspecific protein binding properties of this glycopolymer layer were then investigated with surface plasmon resonance (SPR). Three proteins with different size, lysozyme, bovine serum albumin (BSA), and fibrinogen were used as model solutes to investigate the influence of protein size on the protein resistance behavior. The glycopolymer chain density was controlled during surface-initiated ATRP by varying the ratio of the components in the mixed SAM, and the chain length was adjusted by ATRP time. The effect of chain density in combination with the protein size was also evaluated. The most important results are that poly(GAMA) layers of higher grafting density show resistance to adsorption of the model proteins used in this work and that the amount of adsorbed protein depends on the length and density of the glycopolymer chains and also on the size of the proteins.
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Affiliation(s)
- Qian Yang
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen, 45117 Essen, Germany
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44
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Chemical and Physical Modifications of Biomaterial Surfaces to Control Adhesion of Cells. ACTA ACUST UNITED AC 2010. [DOI: 10.1007/978-90-481-8790-4_13] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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45
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High performance polyethersulfone microfiltration membranes having high flux and stable hydrophilic property. J Memb Sci 2009. [DOI: 10.1016/j.memsci.2009.06.035] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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46
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47
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Li L, Jiang Z, Wu H, Feng Y, Li J. Protamine-induced biosilica as efficient enzyme immobilization carrier with high loading and improved stability. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2009.03.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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48
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Seo JH, Matsuno R, Takai M, Ishihara K. Cell adhesion on phase-separated surface of block copolymer composed of poly(2-methacryloyloxyethyl phosphorylcholine) and poly(dimethylsiloxane). Biomaterials 2009; 30:5330-40. [PMID: 19592090 DOI: 10.1016/j.biomaterials.2009.06.031] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2009] [Accepted: 06/16/2009] [Indexed: 11/24/2022]
Abstract
We investigated the morphological effect of phase-separated block copolymer surfaces composed of poly(2-methacryloyloxyethyl phosphorylcholine (MPC)) (PMPC) and poly(dimethylsiloxane) (PDMS) on protein adsorption and cell adhesion behavior. We observed three different types of phase-separated surface morphologies by TEM and AFM. The elemental composition of phosphorus on the surface increases with the PMPC composition. Furthermore, the polymer surface formed by a block copolymer-containing a higher MPC unit composition shows a slightly lower static water contact angle. This result indicates that the elemental surface ratio of the surface depends on the MPC composition in the block copolymer. Protein adsorption tests revealed that only hydrophobic PDMS domains showed selective protein adsorption. Cell adhesion tests revealed that the number of adhered cells increased with increasing hydrophobic PDMS domain size of block copolymers in serum-containing media. In contrast, no cells adhered onto block copolymer surfaces in serum-free media, whereas a large amount of adhered cells were observed on the hydrophobic PDMS surface. This result indicates that segregated hydrophobic domains on a biocompatible PMPC surface strongly affect serum protein adsorption, thereby promoting considerable cell adhesion, although the surface is hydrophilic. Thus, both the composition of MPC units and the segregated hydrophobic surface morphology are important considerations in biomaterial surface design.
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Affiliation(s)
- Ji-Hun Seo
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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49
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Preparation of antifouling ultrafiltration membranes with poly(ethylene glycol)-graft-polyacrylonitrile copolymers. J Memb Sci 2009. [DOI: 10.1016/j.memsci.2009.01.002] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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50
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Gu Z, Huang S, Chen Y. Biomolecular Nanopatterning by Magnetic Electric Lithography. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200803456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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