51
|
Pietrzyk B, Kucharski D, Kołodziejczyk Ł, Miszczak S, Fijalkowski M. Comparison of Mechanical and Barrier Properties of Al 2O 3/TiO 2/ZrO 2 Layers in Oxide-Hydroxyapatite Sandwich Composite Coatings Deposited by Sol-Gel Method on Ti6Al7Nb Alloy. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E502. [PMID: 31973025 PMCID: PMC7040737 DOI: 10.3390/ma13030502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/13/2020] [Accepted: 01/16/2020] [Indexed: 11/27/2022]
Abstract
In this study, coatings of different oxides (TiO2, Al2O3, ZrO2) and hydroxyapatite (HAp) as well as sandwich composite hydroxyapatite with an oxides sublayer (oxide+HAp) were deposited on Ti6Al7Nb alloy using the sol-gel dip-coating method. The coatings were characterized in terms of morphology (optical microscope), surface topography (AFM), thickness (ellipsometry), and crystal structure (XRD/GIXRD). The mechanical properties of the coatings-hardness, Young's modulus, and adhesion to the substrate-were examined using nanoindentation and scratch tests. The barrier properties of the coatings against the migration of aluminum ions were examined by measuring their concentration after soaking in Hank's balanced salt solution (HBSS) with the use of optical emission spectrometry of inductively coupled plasma (ICPOES). It was found that all the oxide and HAp coatings reduced the permeation of Al ions from the Ti6Al7Nb alloy substrate. The best features revealed an Al2O3 layer that had excellent barrier properties and the best adhesion to the substrate. Al2O3 as a sublayer significantly improved the properties of the sandwich composite HAp coating.
Collapse
Affiliation(s)
- Bożena Pietrzyk
- Institute of Materials Science and Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, Stefanowskiego Str. 1/15, 90-924 Lodz, Poland
| | - Daniel Kucharski
- Institute of Materials Science and Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, Stefanowskiego Str. 1/15, 90-924 Lodz, Poland
| | - Łukasz Kołodziejczyk
- Institute of Materials Science and Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, Stefanowskiego Str. 1/15, 90-924 Lodz, Poland
| | - Sebastian Miszczak
- Institute of Materials Science and Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, Stefanowskiego Str. 1/15, 90-924 Lodz, Poland
| | - Mateusz Fijalkowski
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, 460 01 Liberec 1, Czech Republic
| |
Collapse
|
52
|
Peng C, Izawa T, Zhu L, Kuroda K, Okido M. Tailoring Surface Hydrophilicity Property for Biomedical 316L and 304 Stainless Steels: A Special Perspective on Studying Osteoconductivity and Biocompatibility. ACS APPLIED MATERIALS & INTERFACES 2019; 11:45489-45497. [PMID: 31714730 DOI: 10.1021/acsami.9b17312] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Stainless steels used as metal implants in the medical field have been attracting intensive attention due to their advantages in mechanical properties, anticorrosion properties, and cost effectiveness. Good osteoconductivity, low toxicity, and low inflammatory reactions are essential to stainless steel implant in vivo. However, there are few cases about the surface modification performed for enhancing the corrosion resistance, and there are few researches on the relationship between the surface properties of stainless steel and osteoconductivity when used as implants. This study employed 316L and 304 stainless steel for surface modification including hydrothermal treatment after acid immersion and anodizing treatment, while the as-polished stainless steel was used as a control group. Anticorrosion properties, protein adsorption properties, osteoconductivity, and anti-inflammation property of these specimens were intensively investigated in vitro and in vivo. It was found that specimen subjected to hydrothermal treatment at 230 °C after immersion in 18 M H2SO4 had the lowest metal ions release, while the anodized specimen had the highest release of Fe and Cr due to corrosion. The protein adsorption amount of the specimens was positively related to the osteoconductivity, suggesting protein adsorption is the prerequisite for good osteoconductivity. The osteoconductivity decreased first and then increased with the increase in water contact angle (WCA) value. The specimen with the surface modified by hydrothermal treatment after acid immersion had the highest protein adsorption amount and the best osteoconductivity due to its superhydrophilicity property. The protein adsorption capacity and osteoconductivity for stainless steel tended to be the same as Ti alloys studied before, indicating the surface hydrophilicity property of the implanted metals was the dominant factor affecting the osteoconductivity. From an anti-inflammation perspective, the specimen with the surface modified by hydrothermal treatment after acid immersion also exhibited the lowest thickness of the fibrous capsule membrane from the in vivo tests, suggesting its advantageous biocompatibility. Thus, this research can provide new insight into the application of austenitic stainless steel for implanted material purposes.
Collapse
|
53
|
Wu Q, Yang C, Su C, Zhong L, Zhou L, Hang T, Lin H, Chen W, Li L, Xie X. Slippery Liquid-Attached Surface for Robust Biofouling Resistance. ACS Biomater Sci Eng 2019; 6:358-366. [PMID: 33463210 DOI: 10.1021/acsbiomaterials.9b01323] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Materials for biodevices and bioimplants commonly suffer from unwanted but unavoidable biofouling problems due to the nonspecific adhesion of proteins, cells, or bacteria. Chemical coating or physical strategies for reducing biofouling have been pursued, yet highly robust antibiofouling surfaces that can persistently resist contamination in biological environments are still lacking. In this study, we developed a facile method to fabricate a highly robust slippery and antibiofouling surface by conjugating a liquid-like polymer layer to a substrate. This slippery liquid-attached (SLA) surface was created via a one-step equilibration reaction by tethering methoxy-terminated polydimethylsiloxane (PDMS-OCH3) polymer brushes onto a substrate to form a transparent "liquid-like" layer. The SLA surface exhibited excellent sliding behaviors toward a wide range of liquids and small particles and antibiofouling properties against the long-term adhesion of small biomolecules, proteins, cells, and bacteria. Moreover, in contrast to superomniphobic surfaces and liquid-infused porous surfaces (SLIPS) requiring micro/nanostructures, the SLA layer could be obtained on smooth surfaces and maintain its biofouling resistance under abrasion with persistent stability. Our study offers a simple method to functionalize surfaces with robust slippery and antibiofouling properties, which is promising for potential applications including medical implants and biodevices.
Collapse
Affiliation(s)
- Qianni Wu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Chengduan Yang
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China
| | - Chen Su
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China
| | - Luyu Zhong
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China
| | - Lingfei Zhou
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China
| | - Tian Hang
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China
| | - Haotian Lin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Weirong Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
| | - Linxian Li
- Ming Wai Lau Centre for Reparative Medicine, Karolinska Institutet, Sha Tin, Hong Kong
| | - Xi Xie
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China.,State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510006, China
| |
Collapse
|
54
|
Su Y, Cockerill I, Zheng Y, Tang L, Qin YX, Zhu D. Biofunctionalization of metallic implants by calcium phosphate coatings. Bioact Mater 2019; 4:196-206. [PMID: 31193406 PMCID: PMC6529680 DOI: 10.1016/j.bioactmat.2019.05.001] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/26/2019] [Accepted: 05/14/2019] [Indexed: 01/07/2023] Open
Abstract
Metallic materials have been extensively applied in clinical practice due to their unique mechanical properties and durability. Recent years have witnessed broad interests and advances on surface functionalization of metallic implants for high-performance biofunctions. Calcium phosphates (CaPs) are the major inorganic component of bone tissues, and thus owning inherent biocompatibility and osseointegration properties. As such, they have been widely used in clinical orthopedics and dentistry. The new emergence of surface functionalization on metallic implants with CaP coatings shows promise for a combination of mechanical properties from metals and various biofunctions from CaPs. This review provides a brief summary of state-of-art of surface biofunctionalization on implantable metals by CaP coatings. We first glance over different types of CaPs with their coating methods and in vitro and in vivo performances, and then give insight into the representative biofunctions, i.e. osteointegration, corrosion resistance and biodegradation control, and antibacterial property, provided by CaP coatings for metallic implant materials.
Collapse
Affiliation(s)
- Yingchao Su
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA
| | - Irsalan Cockerill
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA
| | - Yufeng Zheng
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, China
| | - Liping Tang
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, USA
| | - Yi-Xian Qin
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA
| | - Donghui Zhu
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA
| |
Collapse
|
55
|
Buck E, Li H, Cerruti M. Surface Modification Strategies to Improve the Osseointegration of Poly(etheretherketone) and Its Composites. Macromol Biosci 2019; 20:e1900271. [DOI: 10.1002/mabi.201900271] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 10/18/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Emily Buck
- Department of Mining and Materials EngineeringMcGill University 3610 University Street Montreal QC H3A 0C5 Canada
| | - Hao Li
- Department of Mining and Materials EngineeringMcGill University 3610 University Street Montreal QC H3A 0C5 Canada
| | - Marta Cerruti
- Department of Mining and Materials EngineeringMcGill University 3610 University Street Montreal QC H3A 0C5 Canada
| |
Collapse
|
56
|
Chaichi A, Prasad A, Kootta Parambil L, Shaik S, Hemmasian Ettefagh A, Dasa V, Guo S, Osborn ML, Devireddy R, Khonsari MM, Gartia MR. Improvement of Tribological and Biocompatibility Properties of Orthopedic Materials Using Piezoelectric Direct Discharge Plasma Surface Modification. ACS Biomater Sci Eng 2019; 5:2147-2159. [PMID: 33405717 DOI: 10.1021/acsbiomaterials.9b00009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Various types of alloys and polymers are utilized in orthopedic implants. However, there are still several issues accompanied by the use of prosthetic materials, such as low wear performance and catastrophic failure. Surface enhancement of biomaterials is a promising method that can improve the success rate of prosthetic operations without negatively affecting their bulk properties while improving the biocompatibility of implants and reducing infections. Nonthermal plasma treatment has become a ubiquitous surface modification method in sterilization and healthcare applications. However, the clinical applications of such an approach have been limited due to the lack of detailed studies delineating the wear behavior and biocompatibility of implants after plasma treatment. In this study, we have employed a handheld piezoelectric direct discharge (PDD) plasma generator to modify the surface of two common metallic (Ti6Al4V) and nonmetallic (GUR1020 polymer) biomaterials used typically in joint and disc replacements. We have observed an approximately 60-fold reduction in tribological wear rate along with a 2- to 3-fold increase in the biocompatibility properties of plasma coated samples compared to noncoated (untreated) surfaces, respectively. Our study introduces a novel application of nonthermal PDD plasma technology that is capable of increasing the quality and success rate of joint and disc replacements.
Collapse
Affiliation(s)
- Ardalan Chaichi
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge 70803, United States
| | - Alisha Prasad
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge 70803, United States
| | - Lijesh Kootta Parambil
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge 70803, United States
| | - Shahensha Shaik
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge 70803, United States
| | - Ali Hemmasian Ettefagh
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge 70803, United States
| | - Vinod Dasa
- Department of Orthopaedic Surgery, Louisiana State University Health Sciences Center, New Orleans 70112, United States
| | - Shengmin Guo
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge 70803, United States
| | - Michelle L Osborn
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge 70803, United States
| | - Ram Devireddy
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge 70803, United States
| | - Michael M Khonsari
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge 70803, United States
| | - Manas Ranjan Gartia
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge 70803, United States
| |
Collapse
|
57
|
Sreejith S, Kishor R, Abbas A, Thomas R, Yeo T, Ranjan VD, Vaidyanathan R, Seah YP, Xing B, Wang Z, Zeng L, Zheng Y, Lim CT. Nanomechanical Microfluidic Mixing and Rapid Labeling of Silica Nanoparticles using Allenamide-Thiol Covalent Linkage for Bioimaging. ACS APPLIED MATERIALS & INTERFACES 2019; 11:4867-4875. [PMID: 30624893 DOI: 10.1021/acsami.8b20315] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Rapid surface functionalization of nanomaterials using covalent linkage following "green chemistry" remains challenging, and the quest for developing simple protocols is persisting. We report a nanomechanical microfluidic approach for the coupling of allenamide functionalized organic derivatives on the surface of thiol-modified silica nanoparticles using allenamide-thiol chemistry. The coupling principle involves the use of a microfluidic surface acoustic wave device that generates acoustic streaming-based chaotic fluid micromixing that enables mixing of laterally flowing fluids containing active components. This approach was used to demonstrate the direct surface labeling of thiol-modified silica nanoparticles using a selected group of modified fluorescent tags containing allenamide handles and achieved a total labeling efficiency of 83-90%. This green approach enabled a highly efficient surface functionalization under aqueous conditions, with tunable control over the conjugation process via the applied field. The dye-labeled silica particles were characterized using various analytical techniques and found to be biocompatible with potential in live cell bioimaging. It is envisaged that this bioconjugation strategy will find numerous applications in the field of bioimaging and drug delivery.
Collapse
Affiliation(s)
- Sivaramapanicker Sreejith
- Biomedical Institute for Global Health Research & Technology , National University of Singapore , 117599 Singapore
| | - Rahul Kishor
- School of Electrical and Electronics Engineering , Nanyang Technological University , 639798 Singapore
| | - Ata Abbas
- Department of Chemistry, Graduate School of Science , The University of Tokyo , Bunkyo-ku 113033 , Japan
| | - Rijil Thomas
- School of Electrical and Electronics Engineering , Nanyang Technological University , 639798 Singapore
| | - Trifanny Yeo
- Department of Biomedical Engineering , National University of Singapore , 117543 Singapore
| | | | | | - Yen Peng Seah
- Singapore Institute of Manufacturing Technology , 71 Nanyang Drive , 638075 Singapore
| | - Bengang Xing
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences , Nanyang Technological University , 637371 Singapore
| | - Zhenfeng Wang
- Singapore Institute of Manufacturing Technology , 71 Nanyang Drive , 638075 Singapore
| | - Li Zeng
- National Neuroscience Institute , 11 Jalan Tam Tock Seng , 308433 Singapore
| | - Yuanjin Zheng
- School of Electrical and Electronics Engineering , Nanyang Technological University , 639798 Singapore
| | - Chwee Teck Lim
- Biomedical Institute for Global Health Research & Technology , National University of Singapore , 117599 Singapore
- Department of Biomedical Engineering , National University of Singapore , 117543 Singapore
- Mechanobiology Institute , National University of Singapore , 117411 Singapore
| |
Collapse
|
58
|
Di Russo J, Young JL, Balakrishnan A, Benk AS, Spatz JP. NTA-Co3+-His6 versus NTA-Ni2+-His6 mediated E-Cadherin surface immobilization enhances cellular traction. Biomaterials 2019; 192:171-178. [DOI: 10.1016/j.biomaterials.2018.10.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 10/23/2018] [Accepted: 10/28/2018] [Indexed: 01/09/2023]
|
59
|
Diaz-Rodriguez S, Chevallier P, Paternoster C, Montaño-Machado V, Noël C, Houssiau L, Mantovani D. Surface modification and direct plasma amination of L605 CoCr alloys: on the optimization of the oxide layer for application in cardiovascular implants. RSC Adv 2019; 9:2292-2301. [PMID: 35516133 PMCID: PMC9059826 DOI: 10.1039/c8ra08541b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 12/08/2018] [Indexed: 02/02/2023] Open
Abstract
Stents are cardiovascular devices used to treat atherosclerosis, and are deployed into narrowed arteries and implanted by expansion to reopen the biological lumen. Nevertheless, complications after implantation are still observed in 10-14% of the implantations. Therefore, functionalizing these devices with active molecules to improve the interfacial effects with the surrounding tissue strongly impacts their success. A plasma-based procedure to directly graft biomolecules to the surface of cobalt chromium alloys, without any polymeric coating, has been recently reported. Assuring the stability of the coating during plastic deformation generated during the implantation whilst avoiding the corrosion of the surface is crucial. This study explores different surface treatments to be used as a pre-treatment for this novel procedure. The effects of (i) electropolishing, (ii) thermal treatments, and (iii) the plasma immersion ion implantation of oxygen on the chemical composition, roughness, wettability and efficiency during the plasma-amination procedure whilst avoiding cracks after deformation, thus maintaining corrosion resistant behaviour, were investigated by XPS, AFM, ToF-SIMS imaging and depth profile, and WCA. Furthermore, the hemocompatibility of the surface and cell viability assays were also performed. Results showed that all of the treatments created a different surface chemical composition: EP mainly of chromium oxide, PIII with a layer of cobalt oxide and TT with a mixture of oxides, as observed by XPS and ToF-SIMS. Moreover, EP was the process that generated a surface with the highest efficiency to amination and the most corrosion resistance among the treatments, and it appeared as the most suitable pre-treatment for stent functionalization.
Collapse
Affiliation(s)
- Sergio Diaz-Rodriguez
- Laboratory for Biomaterials and Bioengineering (CRC-I), Department of Min-Met-Mat Engineering and the CHU de Québec Research Center, Laval University PLT-1745G Québec Québec G1V 0A6 Canada +1 (418) 656-2131 ext 6270
| | - Pascale Chevallier
- Laboratory for Biomaterials and Bioengineering (CRC-I), Department of Min-Met-Mat Engineering and the CHU de Québec Research Center, Laval University PLT-1745G Québec Québec G1V 0A6 Canada +1 (418) 656-2131 ext 6270
| | - Carlo Paternoster
- Laboratory for Biomaterials and Bioengineering (CRC-I), Department of Min-Met-Mat Engineering and the CHU de Québec Research Center, Laval University PLT-1745G Québec Québec G1V 0A6 Canada +1 (418) 656-2131 ext 6270
| | - Vanessa Montaño-Machado
- Laboratory for Biomaterials and Bioengineering (CRC-I), Department of Min-Met-Mat Engineering and the CHU de Québec Research Center, Laval University PLT-1745G Québec Québec G1V 0A6 Canada +1 (418) 656-2131 ext 6270
| | - Céline Noël
- Laboratoire Interdisciplinaire de Spectroscopie Electronique, Namur Institute of Structured Matter, University of Namur 61 Rue de Bruxelles 5000 Namur Belgium
| | - Laurent Houssiau
- Laboratoire Interdisciplinaire de Spectroscopie Electronique, Namur Institute of Structured Matter, University of Namur 61 Rue de Bruxelles 5000 Namur Belgium
| | - Diego Mantovani
- Laboratory for Biomaterials and Bioengineering (CRC-I), Department of Min-Met-Mat Engineering and the CHU de Québec Research Center, Laval University PLT-1745G Québec Québec G1V 0A6 Canada +1 (418) 656-2131 ext 6270
| |
Collapse
|
60
|
Bhattacharya P, Swain S, Giri L, Neogi S. Fabrication of magnesium oxide nanoparticles by solvent alteration and their bactericidal applications. J Mater Chem B 2019. [DOI: 10.1039/c9tb00782b] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
MgO nanoparticles are synthesized using water, ethanol and aqueous CTAB solution. The nanoparticles synthesized in ethanol exhibited smallest size, maximum reactive oxygen species generation and maximum antibacterial ability, and low haemolysis.
Collapse
|
61
|
Luan Y, Liu S, Pihl M, van der Mei HC, Liu J, Hizal F, Choi CH, Chen H, Ren Y, Busscher HJ. Bacterial interactions with nanostructured surfaces. Curr Opin Colloid Interface Sci 2018. [DOI: 10.1016/j.cocis.2018.10.007] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
62
|
Li LY, Cui LY, Zeng RC, Li SQ, Chen XB, Zheng Y, Kannan MB. Advances in functionalized polymer coatings on biodegradable magnesium alloys - A review. Acta Biomater 2018; 79:23-36. [PMID: 30149212 DOI: 10.1016/j.actbio.2018.08.030] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 08/21/2018] [Accepted: 08/23/2018] [Indexed: 01/20/2023]
Abstract
Magnesium (Mg) and its alloys have become a research frontier in biodegradable materials owing to their superior biocompatibility and excellent biomechanical compatibility. However, their high degradation rate in the physiological environment should be well tackled prior to clinical applications. This review summarizes the latest progress in the development of polymeric coatings on biodegradable Mg alloys over the last decade, regarding preparation strategies for polylactic acid (PLA), poly (latic-co-glycolic) acid (PLGA), polycaprolactone (PCL), polydopamine (PDA), chitosan (CS), collagen (Col) and their composite, and their performance in terms of corrosion resistance and biocompatibility. Feasible perspectives and developing directions of next generation of polymeric coatings with respect to biomedical Mg alloys are briefly discussed. STATEMENT OF SIGNIFICANCE Magnesium (Mg) and its alloys have become a research frontier in biodegradable materials owing to their superior biocompatibility and suitable biomechanical compatibility. However, the principal drawback of Mg-based implants is their poor corrosion resistance in physiological environments. Hence, it is vital to mitigate the degradation/corrosion behavior of Mg alloys for safe biomedical deployments. This review summarizes the latest progress in development of polymeric coatings on biomedical Mg alloys regarding preparation strategy, corrosion resistance and biocompatibility, including polylactic acid (PLA), poly (latic-co-glycolic) acid (PLGA), polycaprolactone (PCL), chitosan (CS), polydopamine (PDA), collagen (Col) and their composite. In addition, functionalized polymer coatings with Mg alloys exhibits a promising prospect owing to their ability of degradation along with biocompatibility, self-healing, drug-delivery and osteoinduction.
Collapse
Affiliation(s)
- Ling-Yu Li
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Lan-Yue Cui
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Rong-Chang Zeng
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Shuo-Qi Li
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Xiao-Bo Chen
- School of Engineering, RMIT University, Carlton, VIC 3053, Australia
| | - Yufeng Zheng
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - M Bobby Kannan
- Biomaterials and Engineering Materials (BEM) Laboratory, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
| |
Collapse
|
63
|
Jia Z, Zhou W, Yan J, Xiong P, Guo H, Cheng Y, Zheng Y. Constructing Multilayer Silk Protein/Nanosilver Biofunctionalized Hierarchically Structured 3D Printed Ti6Al4 V Scaffold for Repair of Infective Bone Defects. ACS Biomater Sci Eng 2018; 5:244-261. [DOI: 10.1021/acsbiomaterials.8b00857] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Zhaojun Jia
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
- Department of Orthopaedic and Traumatology, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong, China
| | - Wenhao Zhou
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Jianglong Yan
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Pan Xiong
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Hui Guo
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Yan Cheng
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Yufeng Zheng
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| |
Collapse
|
64
|
Alves AC, Thibeaux R, Toptan F, Pinto AMP, Ponthiaux P, David B. Influence of macroporosity on NIH/3T3 adhesion, proliferation, and osteogenic differentiation of MC3T3-E1 over bio-functionalized highly porous titanium implant material. J Biomed Mater Res B Appl Biomater 2018. [PMID: 29520948 DOI: 10.1002/jbm.b.34096] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Highly porous Ti implant materials are being used in order to overcome the stress shielding effect on orthopedic implants. However, the lack of bioactivity on Ti surfaces is still a major concern regarding the osseointegration process. It is known that the rapid recruitment of osteoblasts in bone defects is an essential prerequisite for efficient bone repair. Conventionally, osteoblast recruitment to bone defects and subsequent bone repair has been achieved using growth factors. Thus, in this study highly porous Ti samples were processed by powder metallurgy using space holder technique followed by the bio-functionalization through microarc oxidation using a Ca- and P-rich electrolyte. The biological response in terms of early cell response, namely, adhesion, spreading, viability, and proliferation of the novel biofunctionalized highly porous Ti was carried out with NIH/3T3 fibroblasts and MC3T3-E1 preosteoblasts in terms of viability, adhesion, proliferation, and alkaline phosphatase activity. Results showed that bio-functionalization did not affect the cell viability. However, bio-functionalized highly porous Ti (22% porosity) enhanced the cell proliferation and activity. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 107B: 73-85, 2019.
Collapse
Affiliation(s)
- A C Alves
- CMEMS-UMinho - Center of MicroElectroMechanical Systems - Universidade do Minho, Campus de Azuém, Guimarães, Portugal
| | - R Thibeaux
- MSSMat, Laboratoire de Mécanique des Sols, Structures et Matériaux, UMR CNRS 8579, CentraleSupélec, Université Paris Saclay, Châtenay-Malabry, France
| | - F Toptan
- CMEMS-UMinho - Center of MicroElectroMechanical Systems - Universidade do Minho, Campus de Azuém, Guimarães, Portugal.,DEM - Departament of Mechanical Engineering - Universidade do Minho, Campus de Azurém, Guimarães, Portugal.,IBTN/Br - Brazilian Branch of the Institute of Biomaterials, Tribocorrosion and Nanomedicine, UNESP, Campus de Bauru, Bauru, SP, Brazil
| | - A M P Pinto
- CMEMS-UMinho - Center of MicroElectroMechanical Systems - Universidade do Minho, Campus de Azuém, Guimarães, Portugal.,DEM - Departament of Mechanical Engineering - Universidade do Minho, Campus de Azurém, Guimarães, Portugal
| | - P Ponthiaux
- LGPM, Laboratoire de Génie des Procédés et Matériaux, CentraleSupélec, Université Paris Saclay, Châtenay-Malabry, France
| | - B David
- MSSMat, Laboratoire de Mécanique des Sols, Structures et Matériaux, UMR CNRS 8579, CentraleSupélec, Université Paris Saclay, Châtenay-Malabry, France
| |
Collapse
|
65
|
Zhang J, Zhu Y, Song J, Yang J, Pan C, Xu T, Zhang L. Novel Balanced Charged Alginate/PEI Polyelectrolyte Hydrogel that Resists Foreign-Body Reaction. ACS APPLIED MATERIALS & INTERFACES 2018; 10:6879-6886. [PMID: 29393622 DOI: 10.1021/acsami.7b17670] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Foreign-body reaction (FBR) has been a long-term obstacle for implantable biomedical devices and materials, especially to those that require mass/signal transport between the implants and the body. However, currently, very limited biomaterials can mitigate FBR. In this work, we develop a balanced charged polyelectrolyte hydrogel that can efficiently resist FBR and collagenous capsule formation in a mouse model. Using this new strategy, we can easily tune the antifouling properties of the polyelectrolyte hydrogels by changing the ratio of negatively charged alginate and positively charged poly(ethylene imine). We find that at the optimum ratio where the net charge of hydrogel is neutral, the adhesion of proteins, cells, bacteria, and fresh blood on its surface can be significantly inhibited, indicating its excellent antifouling properties. In vivo studies show that after being implanted subcutaneously, this balanced charged hydrogel can prevent the capsule formation for at least 3 months. Furthermore, immunofluorescent staining results indicate that this balanced charged hydrogel elicits negligible inflammation, significantly reducing macrophage migration to the tissue-implant interface. This flexible and versatile approach holds a great promise for designing a wide spread of new antifouling hydrogels and using as immunoisolation materials for biomedical applications.
Collapse
Affiliation(s)
- Jiamin Zhang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering (Ministry of Education), and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University , Tianjin 300072, P. R. China
| | - Yingnan Zhu
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering (Ministry of Education), and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University , Tianjin 300072, P. R. China
| | - Jiayin Song
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering (Ministry of Education), and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University , Tianjin 300072, P. R. China
| | - Jing Yang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering (Ministry of Education), and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University , Tianjin 300072, P. R. China
| | - Chao Pan
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering (Ministry of Education), and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University , Tianjin 300072, P. R. China
| | - Tong Xu
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering (Ministry of Education), and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University , Tianjin 300072, P. R. China
| | - Lei Zhang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering (Ministry of Education), and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University , Tianjin 300072, P. R. China
| |
Collapse
|
66
|
Amani H, Habibey R, Hajmiresmail SJ, Latifi S, Pazoki-Toroudi H, Akhavan O. Antioxidant nanomaterials in advanced diagnoses and treatments of ischemia reperfusion injuries. J Mater Chem B 2017; 5:9452-9476. [PMID: 32264560 DOI: 10.1039/c7tb01689a] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Organ ischemia with inadequate oxygen supply followed by reperfusion (which initiates a complex of inflammatory responses and oxidative stress) occurs in different clinical conditions and surgical procedures including stroke, myocardial infarction, limb ischemia, renal failure, organ transplantation, free-tissue-transfer, cardiopulmonary bypass, and vascular surgery. Even though pharmacological treatments protect against experimental ischemia reperfusion (I/R) injury, there has not been enough success in their application for patient benefits. The main hurdles in the treatment of I/R injury are the lack of diagnosis tools for understanding the complicated chains of I/R-induced signaling events, especially in the acute phase after ischemia, determining the affected regions of the tissue over time, and then, targeting and safe delivery of antioxidants, drugs, peptides, genes and cells to the areas requiring treatment. Besides the innate antioxidant and free radical scavenging properties, some nanoparticles also show higher flexibility in drug delivery and imaging. This review highlights three main approaches in nanoparticle-mediated targeting of I/R injury: nanoparticles (1) as antioxidants for reducing tissue oxidative stress, (2) for targeted delivery of therapeutic agents to the ischemic regions or cells, and (3) for imaging I/R injury at the molecular, cellular or tissue level and monitoring its evolution using contrasts induced by nanoparticles. These approaches can also be combined to realize so called theranostics for providing simultaneous diagnosis of ischemic regions and treatments by targeted delivery.
Collapse
Affiliation(s)
- Hamed Amani
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Science, Tehran, Iran
| | | | | | | | | | | |
Collapse
|
67
|
Divandari M, Pollard J, Dehghani E, Bruns N, Benetti EM. Controlling Enzymatic Polymerization from Surfaces with Switchable Bioaffinity. Biomacromolecules 2017; 18:4261-4270. [PMID: 29086550 DOI: 10.1021/acs.biomac.7b01313] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The affinity of surfaces toward proteins is found to be a key parameter to govern the synthesis of polymer brushes by surface-initiated biocatalytic atom transfer radical polymerization (SI-bioATRP). While the "ATRPase" hemoglobin (Hb) stimulates only a relatively slow growth of protein repellent brushes, the synthesis of thermoresponsive grafts can be regulated by switching the polymer's attraction toward proteins across its lower critical solution temperature (LCST). Poly(N-isopropylacrylamide) (PNIPAM) brushes are synthesized in discrete steps of thickness at temperatures above LCST, while the biocatalyst layer is refreshed at T < LCST. Multistep surface-initiated biocatalytic ATRP demonstrates a high degree of control, results in high chain end group fidelity and enables the synthesis of multiblock copolymer brushes under fully aqueous conditions. The activity of Hb can be further modulated by tuning the accessibility of the heme pocket within the protein. Hence, the multistep polymerization is accelerated at acid pH, where the enzyme undergoes a transition from its native to a molten globule conformation. The controlled synthesis of polymer brushes by multistep SI-bioATRP highlights how a biocatalytic synthesis of grafted polymer films can be precisely controlled through the modulation of the polymer's interfacial physicochemical properties, in particular of the affinity of the surface toward proteins. This is not only of importance to gain a predictive understanding of surface-confined enzymatic polymerizations, but also represents a new way to translate bioadhesion into a controlled functionalization of materials.
Collapse
Affiliation(s)
- Mohammad Divandari
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich , Vladimir-Prelog-Weg 5, CH-8093 Zürich, Switzerland
| | - Jonas Pollard
- Adolphe Merkle Institute , Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland
| | - Ella Dehghani
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich , Vladimir-Prelog-Weg 5, CH-8093 Zürich, Switzerland
| | - Nico Bruns
- Adolphe Merkle Institute , Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland
| | - Edmondo M Benetti
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich , Vladimir-Prelog-Weg 5, CH-8093 Zürich, Switzerland
| |
Collapse
|
68
|
Dong M, Cui X, Zhang Y, Jin G, Yue C, Zhao X, Cai Z, Xu B. Vacuum carburization of 12Cr2Ni4A low carbon alloy steel with lanthanum and cerium ion implantation. J RARE EARTH 2017. [DOI: 10.1016/j.jre.2017.04.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
69
|
Atomic layer deposited ZrO 2 nanofilm on Mg-Sr alloy for enhanced corrosion resistance and biocompatibility. Acta Biomater 2017; 58:515-526. [PMID: 28611003 DOI: 10.1016/j.actbio.2017.06.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 05/28/2017] [Accepted: 06/09/2017] [Indexed: 11/23/2022]
Abstract
The biodegradability and good mechanical property of magnesium alloys make them potential biomedical materials. However, their rapid corrosion rate in the human body's environment impairs these advantages and limits their clinical use. In this work, a compact zirconia (ZrO2) nanofilm was fabricated on the surface of a magnesium-strontium (Mg-Sr) alloy by the atomic layer deposition (ALD) method, which can regulate the thickness of the film precisely and thus also control the corrosion rate. Corrosion tests reveal that the ZrO2 film can effectively reduce the corrosion rate of Mg-Sr alloys that is closely related to the thickness of the film. The cell culture test shows that this kind of ZrO2 film can also enhance the activity and adhesion of osteoblasts on the surfaces of Mg-Sr alloys. STATEMENT OF SIGNIFICANCE The significance of the current work is to develop a zirconia nanofilm on biomedical MgSr alloy with controllable thickness precisely through atomic layer deposition technique. By adjusting the thickness of nanofilm, the corrosion rate of Mg-Sr alloy can be modulated, thereafter, the degradation rate of Mg-based alloys can be controlled precisely according to actual clinical requirement. In addition, this zirconia nanofilm modified Mg-Sr alloys show excellent biocompatibility than the bare samples. Hence, this work provides a new surface strategy to control the degradation rate while improving the biocompatibility of substrates.
Collapse
|
70
|
Ruan C, Hu N, Ma Y, Li Y, Liu J, Zhang X, Pan H. The interfacial pH of acidic degradable polymeric biomaterials and its effects on osteoblast behavior. Sci Rep 2017; 7:6794. [PMID: 28754984 PMCID: PMC5533751 DOI: 10.1038/s41598-017-06354-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 06/12/2017] [Indexed: 12/27/2022] Open
Abstract
A weak alkaline environment is established to facilitate the growth of osteoblasts. Unfortunately, this is inconsistent with the application of biodegradable polymer in bone regeneration, as the degradation products are usually acidic. In this study, the variation of the interfacial pH of poly (D, L-lactide) and piperazine-based polyurethane ureas (P-PUUs), as the representations of acidic degradable materials, and the behavior of osteoblasts on these substrates with tunable interfacial pH were investigated in vitro. These results revealed that the release of degraded products caused a rapid decrease in the interfacial pH, and this could be relieved by the introduction of alkaline segments. On the contrary, when culturing with osteoblasts, the variation of the interfacial pH revealed an upward tendency, indicating that cell could construct the microenvironment by secreting cellular metabolites to satisfy its own survival. In addition, the behavior of osteoblasts on substrates exhibited that P-PUUs with the most PP units were better for cell growth and osteogenic differentiation of cells. This is due to the hydrophilic surface and the moderate N% in P-PUUs, key factors in the promotion of the early stages of cellular responses, and the interfacial pH contributing to the enhanced effect on osteogenic differentiation.
Collapse
Affiliation(s)
- Changshun Ruan
- Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China
| | - Nan Hu
- Key Renal Laboratory of Shenzhen, Department of Nephrology, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University, Shenzhen, Guangdong, 518020, China
| | - Yufei Ma
- Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China
| | - Yuxiao Li
- Department of Biochemistry and Molecular Biology, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Juan Liu
- Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China
| | - Xinzhou Zhang
- Key Renal Laboratory of Shenzhen, Department of Nephrology, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University, Shenzhen, Guangdong, 518020, China.
| | - Haobo Pan
- Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, China.
| |
Collapse
|
71
|
Raghuraman S, Elinski MB, Batteas JD, Felts JR. Driving Surface Chemistry at the Nanometer Scale Using Localized Heat and Stress. NANO LETTERS 2017; 17:2111-2117. [PMID: 28282496 DOI: 10.1021/acs.nanolett.6b03457] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Driving and measuring chemical reactions at the nanoscale is crucial for developing safer, more efficient, and environment-friendly reactors and for surface engineering. Quantitative understanding of surface chemical reactions in real operating environments is challenging due to resolution and environmental limitations of existing techniques. Here we report an atomic force microscope technique that can measure reaction kinetics driven at the nanoscale by multiphysical stimuli in an ambient environment. We demonstrate the technique by measuring local reduction of graphene oxide as a function of both temperature and force at the sliding contact. Kinetic parameters measured with this technique reveal alternative reaction pathways of graphene oxide reduction previously unexplored with bulk processing techniques. This technique can be extended to understand and precisely tailor the nanoscale surface chemistry of any two-dimensional material in response to a wide range of external, multiphysical stimuli.
Collapse
Affiliation(s)
- Shivaranjan Raghuraman
- Advanced Nano Manufacturing Laboratory, Department of Mechanical Engineering, Texas A&M University , 3123 TAMU, College Station, Texas 77840, United States
| | - Meagan B Elinski
- Department of Chemistry, Texas A&M University , 3255 TAMU, 580 Ross St., College Station, Texas 77843, United States
| | - James D Batteas
- Department of Chemistry, Texas A&M University , 3255 TAMU, 580 Ross St., College Station, Texas 77843, United States
| | - Jonathan R Felts
- Advanced Nano Manufacturing Laboratory, Department of Mechanical Engineering, Texas A&M University , 3123 TAMU, College Station, Texas 77840, United States
| |
Collapse
|
72
|
Hydrophilic modification of intraocular lens via surface initiated reversible addition-fragmentation chain transfer polymerization for reduced posterior capsular opacification. Colloids Surf B Biointerfaces 2017; 151:271-279. [DOI: 10.1016/j.colsurfb.2016.12.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 12/15/2016] [Accepted: 12/19/2016] [Indexed: 01/05/2023]
|
73
|
Kumari M, Shukla S, Pandey S, Giri VP, Bhatia A, Tripathi T, Kakkar P, Nautiyal CS, Mishra A. Enhanced Cellular Internalization: A Bactericidal Mechanism More Relative to Biogenic Nanoparticles than Chemical Counterparts. ACS APPLIED MATERIALS & INTERFACES 2017; 9:4519-4533. [PMID: 28051856 DOI: 10.1021/acsami.6b15473] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Biogenic synthesis of silver nanoparticles for enhanced antimicrobial activity has gained a lot of momentum making it an urgent need to search for a suitable biocandidate which could be utilized for efficient capping and shaping of silver nanoparticles with enhanced bactericidal activity utilizing its secondary metabolites. Current work illustrates the enhancement of antimicrobial efficacy of silver nanoparticles by reducing and modifying their surface with antimicrobial metabolites of cell free filtrate of Trichoderma viride (MTCC 5661) in comparison to citrate stabilized silver nanoparticles. Nanoparticles were characterized by visual observations, UV-visible spectroscopy, zetasizer, and transmission electron microscopy (TEM). Synthesized particles were monodispersed, spherical in shape and 10-20 nm in size. Presence of metabolites on surface of biosynthesized silver nanoparticles was observed by gas chromatography-mass spectroscopy (GC-MS), energy dispersive X-ray analysis (EDAX), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). The antimicrobial activity of both silver nanoparticles was tested against Shigella sonnei, Pseudomonas aeruginosa (Gram-negative) and Staphylococcus aureus (Gram-positive) by growth inhibition curve analysis and colony formation unit assay. Further, it was noted that internalization of biosynthesized nanoparticles inside the bacterial cell was much higher as compared to citrate stabilized particles which in turn lead to higher production of reactive oxygen species. Increase in oxidative stress caused severe damage to bacterial membrane enhancing further uptake of particles and revoking other pathways for bacterial disintegration resulting in complete and rapid death of pathogens as evidenced by fluorescein diacetate/propidium iodide dual staining and TEM. Thus, study reveals that biologically synthesized silver nanoarchitecture coated with antimicrobial metabolites of T. viride was more potent than their chemical counterpart in killing of pathogenic bacteria.
Collapse
Affiliation(s)
- Madhuree Kumari
- CSIR-National Botanical Research Institute , Rana Pratap Marg, Lucknow, 226 001, India
| | - Shatrunajay Shukla
- CSIR-Indian Institute of Toxicology Research , Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow, 226 001, India
| | - Shipra Pandey
- CSIR-National Botanical Research Institute , Rana Pratap Marg, Lucknow, 226 001, India
| | - Ved P Giri
- CSIR-National Botanical Research Institute , Rana Pratap Marg, Lucknow, 226 001, India
| | - Anil Bhatia
- CSIR-National Botanical Research Institute , Rana Pratap Marg, Lucknow, 226 001, India
| | - Tusha Tripathi
- CSIR-National Botanical Research Institute , Rana Pratap Marg, Lucknow, 226 001, India
| | - Poonam Kakkar
- CSIR-Indian Institute of Toxicology Research , Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow, 226 001, India
| | - Chandra S Nautiyal
- CSIR-National Botanical Research Institute , Rana Pratap Marg, Lucknow, 226 001, India
| | - Aradhana Mishra
- CSIR-National Botanical Research Institute , Rana Pratap Marg, Lucknow, 226 001, India
| |
Collapse
|
74
|
Chen Y, Zhang X, Zhao S, Maitz MF, Zhang W, Yang S, Mao J, Huang N, Wan G. In situ incorporation of heparin/bivalirudin into a phytic acid coating on biodegradable magnesium with improved anticorrosion and biocompatible properties. J Mater Chem B 2017; 5:4162-4176. [DOI: 10.1039/c6tb03157a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Drugs were incorporated into a phytic acid coating on Mg by an in situ chemical route for corrosion control and biocompatibility.
Collapse
Affiliation(s)
- Yingqi Chen
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- College of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
| | - Xuan Zhang
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- College of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
| | - Sheng Zhao
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- College of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
| | - Manfred F. Maitz
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- College of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
| | - Wentai Zhang
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- College of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
| | - Su Yang
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- College of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
| | - Jinlong Mao
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- College of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
| | - Nan Huang
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- College of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
| | - Guojiang Wan
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education
- College of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
| |
Collapse
|
75
|
Gulati K, Ivanovski S. Dental implants modified with drug releasing titania nanotubes: therapeutic potential and developmental challenges. Expert Opin Drug Deliv 2016; 14:1009-1024. [PMID: 27892717 DOI: 10.1080/17425247.2017.1266332] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
INTRODUCTION The transmucosal nature of dental implants presents a unique therapeutic challenge, requiring not only rapid establishment and subsequent maintenance of osseointegration, but also the formation of resilient soft tissue integration. Key challenges in achieving long-term success are sub-optimal bone integration in compromised bone conditions and impaired trans-mucosal tissue integration in the presence of a persistent oral microbial biofilm. These challenges can be targeted by employing a drug-releasing implant modification such as TiO2 nanotubes (TNTs), engineered on titanium surfaces via electrochemical anodization. Areas covered: This review focuses on applications of TNT-based dental implants towards achieving optimal therapeutic efficacy. Firstly, the functions of TNT implants will be explored in terms of their influence on osseointegration, soft tissue integration and immunomodulation. Secondly, the developmental challenges associated with such implants are reviewed including sterilization, stability and toxicity. Expert opinion: The potential of TNTs is yet to be fully explored in the context of the complex oral environment, including appropriate modulation of alveolar bone healing, immune-inflammatory processes, and soft tissue responses. Besides long-term in vivo assessment under masticatory loading conditions, investigating drug-release profiles in vivo and addressing various technical challenges are required to bridge the gap between research and clinical dentistry.
Collapse
Affiliation(s)
- Karan Gulati
- a School of Dentistry and Oral Health , Griffith University , Gold Coast , Australia.,b Tissue Engineering and Regenerative Medicine (TERM) Group, Understanding Chronic Conditions (UCC) Program, Menzies Health Institute Queensland , Griffith University , Gold Coast , Australia
| | - Sašo Ivanovski
- a School of Dentistry and Oral Health , Griffith University , Gold Coast , Australia.,b Tissue Engineering and Regenerative Medicine (TERM) Group, Understanding Chronic Conditions (UCC) Program, Menzies Health Institute Queensland , Griffith University , Gold Coast , Australia
| |
Collapse
|
76
|
Abstract
Surface functionalization via molecular design has been a key approach to incorporate new functionalities into existing biomaterials for biomedical application. Mussel-inspired polydopamine (PDA) has aroused great interest as a new route to the functionalization of biomaterials, due to its simplicity and material independency in deposition, favorable interactions with cells, and strong reactivity for secondary functionalization. Herein, this review attempts to highlight the recent findings and progress of PDA in bio-surface functionalization for biomedical applications. The efforts made to elucidate the polymerization mechanism, PDA structure, and the preparation parameters have been discussed. Interactions between PDA coatings and the various cell types involved in different biomedical applications including general cell adhesion, bone regeneration, blood compatibility, and antimicrobial activity have also been highlighted. A brief discussion of post-functionalization of PDA and nanostructured PDA is also provided.
Collapse
Affiliation(s)
- Y.H. Ding
- Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO 80309, USA
| | - M. Floren
- Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO 80309, USA
- Cardiovascular Pulmonary Research and Developmental Lung Biology Laboratories, University of Colorado Denver, Aurora, CO 80045, USA
| | - W. Tan
- Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO 80309, USA
| |
Collapse
|
77
|
Pandit S, Karunakaran S, Boda SK, Basu B, De M. High Antibacterial Activity of Functionalized Chemically Exfoliated MoS 2. ACS APPLIED MATERIALS & INTERFACES 2016; 8:31567-31573. [PMID: 27933975 DOI: 10.1021/acsami.6b10916] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
In view of the implications of inherent resistance of pathogenic bacteria, especially ESKAPE pathogens toward most of the commercially available antibiotics and the importance of these bacteria-induced biofilm formation leading to chronic infection, it is important to develop new-generation synthetic materials with greater efficacy toward antibacterial property. In addressing this issue, this paper reports a proof-of-principle study to evaluate the potential of functionalized two-dimensional chemically exfoliated MoS2 (ce-MoS2) toward inhibitory and bactericidal property against two representative ESKAPE pathogenic strain-a Gram-positive Staphylococcus aureus (MRSA) and a Gram-negative Pseudomonas aeruginosa. More significantly, the mechanistic study establishes a different extent of oxidative stress together with rapid membrane depolarization in contact with ce-MoS2 having ligands of varied charge and hydrophobicity. The implication of our results is discussed in the light of the lack of survivability of planktonic bacteria and biofilm destruction in vitro. A comparison with widely used small molecules and other nanomaterial-based therapeutics conclusively establishes a better efficacy of 2D ce-MoS2 as a new class of antibiotics.
Collapse
Affiliation(s)
- Subhendu Pandit
- Department of Organic Chemistry, ‡Laboratory for Biomaterials, Materials Research Centre, and ∥Centre for Biosystems Science and Engineering, Indian Institute of Science , Bangalore 560012, India
| | - Subbaraj Karunakaran
- Department of Organic Chemistry, ‡Laboratory for Biomaterials, Materials Research Centre, and ∥Centre for Biosystems Science and Engineering, Indian Institute of Science , Bangalore 560012, India
| | - Sunil Kumar Boda
- Department of Organic Chemistry, ‡Laboratory for Biomaterials, Materials Research Centre, and ∥Centre for Biosystems Science and Engineering, Indian Institute of Science , Bangalore 560012, India
| | - Bikramjit Basu
- Department of Organic Chemistry, ‡Laboratory for Biomaterials, Materials Research Centre, and ∥Centre for Biosystems Science and Engineering, Indian Institute of Science , Bangalore 560012, India
| | - Mrinmoy De
- Department of Organic Chemistry, ‡Laboratory for Biomaterials, Materials Research Centre, and ∥Centre for Biosystems Science and Engineering, Indian Institute of Science , Bangalore 560012, India
| |
Collapse
|
78
|
Immobilization of calcium and phosphate ions improves the osteoconductivity of titanium implants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:291-298. [DOI: 10.1016/j.msec.2016.05.090] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 04/20/2016] [Accepted: 05/22/2016] [Indexed: 11/22/2022]
|
79
|
Dong P, Sun H, Quan D. Synthesis of poly(-lactide-co-5-amino-5-methyl-1,3-dioxan-2-ones)[P(L-LA-co-TAc)] containing amino groups via organocatalysis and post-polymerization functionalization. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.05.064] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
80
|
Guryanov I, Fiorucci S, Tennikova T. Receptor-ligand interactions: Advanced biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:890-903. [PMID: 27524092 DOI: 10.1016/j.msec.2016.07.072] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 07/11/2016] [Accepted: 07/26/2016] [Indexed: 12/24/2022]
Abstract
Receptor-ligand interactions (RLIs) are at the base of all biological events occurring in living cells. The understanding of interactions between complementary macromolecules in biological systems represents a high-priority research area in bionanotechnology to design the artificial systems mimicking natural processes. This review summarizes and analyzes RLIs in some cutting-edge biomedical fields, in particular, for the preparation of novel stationary phases to separate complex biological mixtures in medical diagnostics, for the design of ultrasensitive biosensors for identification of biomarkers of various diseases at early stages, as well as in the development of innovative biomaterials and approaches for regenerative medicine. All these biotechnological fields are closely related, because their success depends on a proper choice, combination and spatial disposition of the single components of ligand-receptor pairs on the surface of appropriately designed support.
Collapse
Affiliation(s)
- Ivan Guryanov
- Institute of Chemistry, St. Petersburg State University, 198504 St. Petersburg, Russia.
| | - Stefano Fiorucci
- Department of Clinical and Experimental Medicine, University of Perugia, 06122 Perugia, Italy.
| | - Tatiana Tennikova
- Institute of Chemistry, St. Petersburg State University, 198504 St. Petersburg, Russia.
| |
Collapse
|
81
|
Wronska MA, O'Connor IB, Tilbury MA, Srivastava A, Wall JG. Adding Functions to Biomaterial Surfaces through Protein Incorporation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:5485-5508. [PMID: 27164952 DOI: 10.1002/adma.201504310] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 03/16/2016] [Indexed: 06/05/2023]
Abstract
The concept of biomaterials has evolved from one of inert mechanical supports with a long-term, biologically inactive role in the body into complex matrices that exhibit selective cell binding, promote proliferation and matrix production, and may ultimately become replaced by newly generated tissues in vivo. Functionalization of material surfaces with biomolecules is critical to their ability to evade immunorecognition, interact productively with surrounding tissues and extracellular matrix, and avoid bacterial colonization. Antibody molecules and their derived fragments are commonly immobilized on materials to mediate coating with specific cell types in fields such as stent endothelialization and drug delivery. The incorporation of growth factors into biomaterials has found application in promoting and accelerating bone formation in osteogenerative and related applications. Peptides and extracellular matrix proteins can impart biomolecule- and cell-specificities to materials while antimicrobial peptides have found roles in preventing biofilm formation on devices and implants. In this progress report, we detail developments in the use of diverse proteins and peptides to modify the surfaces of hard biomaterials in vivo and in vitro. Chemical approaches to immobilizing active biomolecules are presented, as well as platform technologies for isolation or generation of natural or synthetic molecules suitable for biomaterial functionalization.
Collapse
Affiliation(s)
- Małgorzata A Wronska
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Iain B O'Connor
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Maura A Tilbury
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Akshay Srivastava
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - J Gerard Wall
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| |
Collapse
|
82
|
Lin QK, Xu X, Wang Y, Wang B, Chen H. Antiadhesive and antibacterial polysaccharide multilayer as IOL coating for prevention of postoperative infectious endophthalmitis. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2016.1190925] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
83
|
Anticoagulation and endothelial cell behaviors of heparin-loaded graphene oxide coating on titanium surface. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 63:333-40. [DOI: 10.1016/j.msec.2016.03.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 02/25/2016] [Accepted: 03/01/2016] [Indexed: 12/23/2022]
|
84
|
Xu X, Tang JM, Han YM, Wang W, Chen H, Lin QK. Surface PEGylation of intraocular lens for PCO prevention: An in vivo evaluation. J Biomater Appl 2016; 31:68-76. [PMID: 26980548 DOI: 10.1177/0885328216638547] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Posterior capsular opacification (PCO) is a common complication in cataract surgery. The development of PCO is attributed to the combination of adhesion, migration, proliferation, and transdifferentiation of the residual lens epithelial cells (LEC) onto the interface of intraocular lens (IOL) material and lens posterior, in which the initial adhesion is the beginning step and plays important roles. In the present study, hydrophilic polyethylene glycol (PEG) was immobilized onto IOL surface via plasma-aided chemical grafting procedure. The attenuated total reflection - Fourier transform infrared (ATR-FTIR) and contact angle (CA) - measurements indicate the successful surface PEGylation, as well as the excellent hydrophilicity of the surfaces. Compared with pristine IOL, the PEGylation does not influent its optical property, whereas the initial adhesion of LEC is greatly inhibited. In vivo ocular implantation results show that the PEGylated IOL presents good in vivo biocompatibility, and can effectively prevent the PCO development.
Collapse
Affiliation(s)
- Xu Xu
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Jun-Mei Tang
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Yue-Mei Han
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Wei Wang
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Hao Chen
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Quan-Kui Lin
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| |
Collapse
|
85
|
Incorporation of ZrO2 particles in the oxide layer formed on Mg by anodizing: Influence of electrolyte concentration and current modes. J Colloid Interface Sci 2016; 464:36-47. [PMID: 26609921 DOI: 10.1016/j.jcis.2015.11.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 10/15/2015] [Accepted: 11/06/2015] [Indexed: 11/21/2022]
Abstract
HYPOTHESIS The objectives of the present study are to ascertain, particle incorporation during the initial stages of microarc oxidation (MAO), feasibility of increasing the level of particle incorporation through manipulation of process variables and, the use of MgO-ZrO2 composite coatings either as a pre-treatment or as a post-treatment for MAO coated Mg. EXPERIMENTS Anodic oxide coatings were prepared using 0.3M NaOH+15g/l ZrO2 and 3M NaOH+15g/l ZrO2 at 10V under direct current, pulsed current (PC) unipolar and PC bipolar modes. MAO coatings were prepared using 5g/l NaOH+15g/l Na2SiO3 at 250V under direct current mode for 2min. FINDINGS The study reveals that it is possible to incorporate ZrO2 particles in the anodic oxide layer, suggesting such a possibility during the initial stages of MAO. When the MgO-ZrO2 composite coating is used as a pre-treatment, it helps to reduce the size and density of the pores of the MAO coatings and increased the corrosion resistance. When it is used as a post-treatment, lamellar shaped Mg(OH)2 with a very high surface area is formed on the surface, which would be beneficial to impart a better bioactivity and to facilitate immobilization of biomolecules.
Collapse
|
86
|
Sarraf M, Abdul Razak B, Dabbagh A, Nasiri-Tabrizi B, Abu Kasim NH, Basirun WJ. Optimizing PVD conditions for electrochemical anodization growth of well-adherent Ta2O5 nanotubes on Ti–6Al–4V alloy. RSC Adv 2016. [DOI: 10.1039/c6ra11290k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The proposed approach could be considered for the design of various nanostructured titanium implant surfaces.
Collapse
Affiliation(s)
- Masoud Sarraf
- Center of Advanced Manufacturing and Material Processing
- Department of Engineering
- University of Malaya
- Kuala Lumpur 50603
- Malaysia
| | - Bushroa Abdul Razak
- Center of Advanced Manufacturing and Material Processing
- Department of Engineering
- University of Malaya
- Kuala Lumpur 50603
- Malaysia
| | - Ali Dabbagh
- Center of Advanced Manufacturing and Material Processing
- Department of Engineering
- University of Malaya
- Kuala Lumpur 50603
- Malaysia
| | - Bahman Nasiri-Tabrizi
- Advanced Materials Research Center
- Materials Engineering Department
- Najafabad Branch
- Islamic Azad University
- Najafabad
| | - Noor Hayaty Abu Kasim
- Department of Restorative Dentistry
- Faculty of Dentistry
- University of Malaya
- Kuala Lumpur
- Malaysia
| | - Wan Jefrey Basirun
- Department of Chemistry
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
| |
Collapse
|
87
|
Mousa HM, Hussein KH, Pant HR, Woo HM, Park CH, Kim CS. In vitro degradation behavior and cytocompatibility of a bioceramic anodization films on the biodegradable magnesium alloy. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.10.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
88
|
Zhang X, Wu G, Peng X, Li L, Feng H, Gao B, Huo K, Chu PK. Mitigation of Corrosion on Magnesium Alloy by Predesigned Surface Corrosion. Sci Rep 2015; 5:17399. [PMID: 26615896 PMCID: PMC4663789 DOI: 10.1038/srep17399] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 10/29/2015] [Indexed: 11/18/2022] Open
Abstract
Rapid corrosion of magnesium alloys is undesirable in structural and biomedical applications and a general way to control corrosion is to form a surface barrier layer isolating the bulk materials from the external environment. Herein, based on the insights gained from the anticorrosion behavior of corrosion products, a special way to mitigate aqueous corrosion is described. The concept is based on pre-corrosion by a hydrothermal treatment of Al-enriched Mg alloys in water. A uniform surface composed of an inner compact layer and top Mg-Al layered double hydroxide (LDH) microsheet is produced on a large area using a one-step process and excellent corrosion resistance is achieved in saline solutions. Moreover, inspired by the super-hydrophobic phenomenon in nature such as the lotus leaves effect, the orientation of the top microsheet layer is tailored by adjusting the hydrothermal temperature, time, and pH to produce a water-repellent surface after modification with fluorinated silane. As a result of the trapped air pockets in the microstructure, the super-hydrophobic surface with the Cassie state shows better corrosion resistance in the immersion tests. The results reveal an economical and environmentally friendly means to control and use the pre-corrosion products on magnesium alloys.
Collapse
Affiliation(s)
- Xuming Zhang
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Guosong Wu
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Xiang Peng
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Limin Li
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Hongqing Feng
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Biao Gao
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Kaifu Huo
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Paul K. Chu
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| |
Collapse
|
89
|
Sankaran S, de Ruiter M, Cornelissen JJLM, Jonkheijm P. Supramolecular Surface Immobilization of Knottin Derivatives for Dynamic Display of High Affinity Binders. Bioconjug Chem 2015; 26:1972-80. [PMID: 26270829 DOI: 10.1021/acs.bioconjchem.5b00419] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Knottins are known as a robust and versatile class of miniprotein scaffolds for the presentation of high-affinity binding peptides; however, to date their application in biomaterials, biological coatings, and surface applications have not been explored. We have developed a strategy to recombinantly synthesize a β-trypsin inhibitory knottin with supramolecular guest tags that enable it to adhere to self-assembled monolayers of the supramolecular host cucurbit[8]uril (CB[8]). We have described a strategy to easily express knottins in E. coli by conjugating them to a fluorescent protein after which they are cleaved and purified. Knottin constructs that varied in the number and position of the supramolecular tag at either the N- or C-termini or at both ends have been verified for their trypsin inhibitory function and CB[8]-binding properties in solution and on surfaces. All of the knottin constructs showed strong inhibition of trypsin with inhibition constants between 10 and 30 nM. Using microscale thermophoresis, we determined that the supramolecular guest tags on the knottins bind CB[8] with a Kd of ∼6 μM in solution. At the surface, strong divalent binding has been determined with a Kd of 0.75 μM in the case of the knottin with two supramolecular guest tags, whereas only weak monovalent binding occurred when only one guest tag was present. We also show successful supramolecular surface immobilization of the knottin using CB[8] and prove that they can be used to immobilize β-trypsin at the surface.
Collapse
Affiliation(s)
- Shrikrishnan Sankaran
- Bioinspired Molecular Engineering Laboratory of the MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente , 7500 AE Enschede, The Netherlands
| | | | | | - Pascal Jonkheijm
- Bioinspired Molecular Engineering Laboratory of the MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente , 7500 AE Enschede, The Netherlands
| |
Collapse
|
90
|
Ren X, Feng Y, Guo J, Wang H, Li Q, Yang J, Hao X, Lv J, Ma N, Li W. Surface modification and endothelialization of biomaterials as potential scaffolds for vascular tissue engineering applications. Chem Soc Rev 2015; 44:5680-742. [DOI: 10.1039/c4cs00483c] [Citation(s) in RCA: 359] [Impact Index Per Article: 39.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review highlights the recent developments of surface modification and endothelialization of biomaterials in vascular tissue engineering applications.
Collapse
Affiliation(s)
- Xiangkui Ren
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Yakai Feng
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Jintang Guo
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Haixia Wang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Qian Li
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Jing Yang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Xuefang Hao
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Juan Lv
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Nan Ma
- Institute of Chemistry and Biochemistry
- Free University of Berlin
- D-14195 Berlin
- Germany
| | - Wenzhong Li
- Department of Cardiac Surgery
- University of Rostock
- D-18057 Rostock
- Germany
| |
Collapse
|
91
|
Toita R, Sunarso S, Rashid AN, Tsuru K, Ishikawa K. Modulation of the osteoconductive property and immune response of poly(ether ether ketone) by modification with calcium ions. J Mater Chem B 2015; 3:8738-8746. [DOI: 10.1039/c5tb01679g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Ca-modified PEEK facilitates osteoblastic cell proliferation and differentiation and shifts macrophage phenotype towards anti-inflammatory/wound healing type.
Collapse
Affiliation(s)
- R. Toita
- Department of Biomaterials
- Faculty of Dental Science
- Kyushu University
- 3-1-1 Maidashi
- Fukuoka 812-8582
| | - Sunarso Sunarso
- Department of Biomaterials
- Faculty of Dental Science
- Kyushu University
- 3-1-1 Maidashi
- Fukuoka 812-8582
| | - A. N. Rashid
- Department of Biomaterials
- Faculty of Dental Science
- Kyushu University
- 3-1-1 Maidashi
- Fukuoka 812-8582
| | - K. Tsuru
- Department of Biomaterials
- Faculty of Dental Science
- Kyushu University
- 3-1-1 Maidashi
- Fukuoka 812-8582
| | - K. Ishikawa
- Department of Biomaterials
- Faculty of Dental Science
- Kyushu University
- 3-1-1 Maidashi
- Fukuoka 812-8582
| |
Collapse
|