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Yoo HJ, Kim DH, Shin D, Oh Y, Lee S, Lee JY, Choi YJ, Lee SH, Lee KS, Kim Y, Cho K. Recent developments in pre-treatment and analytical techniques for synthetic polymers by MALDI-TOF mass spectrometry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:5767-5800. [PMID: 33241791 DOI: 10.1039/d0ay01729a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A great deal of effort has been expended to develop accurate means of determining the properties of synthetic polymers using matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) mass spectrometry (MS). Many studies have focused on the importance of sample pre-treatment to obtain accurate analysis results. This review discusses the history of synthetic polymer characterization and highlights several applications of MALDI-TOF MS that recognize the importance of pre-treatment technologies. The subject area is of significance in the field of analytical chemistry, especially for users of the MALDI technique. Since the 2000s, many such technologies have been developed that feature improved methods and conditions, including solvent-free systems. In addition, the recent diversification of matrix types and the development of carbon-based matrix materials are described herein together with the current status and future directions of MALDI-TOF MS hardware and software development. We provide a summary of processes used for obtaining the best analytical results with synthetic polymeric materials using MALDI-TOF MS.
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Affiliation(s)
- Hee-Jin Yoo
- Center for Research Equipment, Korea Basic Science Institute, 162, Yeongudanji-ro, Ochang-eup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28119, Korea.
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Cook SG, Bonassar LJ. Interaction with Cartilage Increases the Viscosity of Hyaluronic Acid Solutions. ACS Biomater Sci Eng 2020; 6:2787-2795. [PMID: 33463274 DOI: 10.1021/acsbiomaterials.0c00100] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Injection of hyaluronic acid (HA) viscosupplements is a prevalent treatment for patients suffering from mild to moderate osteoarthritis. The efficacy of these supplements is attributed to increased synovial fluid viscosity, which leads to improved lubrication and reduced pain. Therefore, viscosity is a key parameter to consider in the development of HA supplements. HA localizes near the cartilage surface, resulting in a viscosity gradient with heightened viscosity near the surface. Traditional rheological measurements confine HA between metal fixtures and therefore do not capture the effect of HA localization that occurs on cartilage. In these experiments, we investigate the effect of modifying rheometer fixtures with cartilage surface coatings on the effective viscosity of HA solutions. Our results demonstrate up to a 20-fold increase in effective viscosity when HA was confined between cartilage surfaces compared to steel surfaces. For low-molecular-weight HA, the effective viscosity was dependent on the gap height between the rheometer plates, which is consistent with the formation of a viscous boundary film. Together, these results indicate that this method for assessing HA viscosity may be more relevant to lubrication than traditional methods and may provide a more accurate method for predicting the viscosity of HA viscosupplements in vivo where HA is able to interact with the cartilage surface.
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Affiliation(s)
- Sierra G Cook
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Lawrence J Bonassar
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853, United States.,Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14853, United States
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Visco A, Yousef S, Scolaro C, Espro C, Cristani M. Tribological Behavior of Nanocomposites Based on UHMWPE Aged in Simulated Synovial Fluid. Polymers (Basel) 2018; 10:E1291. [PMID: 30961216 PMCID: PMC6401863 DOI: 10.3390/polym10111291] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/16/2018] [Accepted: 11/19/2018] [Indexed: 11/25/2022] Open
Abstract
Ultra High molecular weight polyethylene (UHMWPE) suffers wear degradation in total joint replacements and it needs to be improved. Thus, we enhanced wear resistance of UHMWPE with carbon nanofiller and paraffin oil and studied its tribological behavior in Simulated Synovial Fluid (SSF) for 60 days at 37 °C to reproduce the conditions of a real joint. Ageing in biological fluid accelerates the wear action but nanocomposite exhibited a higher wear resistance compared to UHMWPE because of its higher structural homogeneity. Carbon nanofiller closes the porosity of UHMWPE hindering SSF to penetrate inside. Wear resistance of the nanocomposite with 1.0 wt.% of CNF improved of 65% (before ageing) and of 70% (after 60 days in SSF) with respect to pure UHMWPE.
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Affiliation(s)
- Annamaria Visco
- Department of Engineering, University of Messina, C.da Di Dio, 98166 Messina, Italy.
- Institute for Chemical-Physical Processes CNR-IPCF, Viale Ferdinando Stagno d'Alcontres, 37, 98158 Messina, Italy.
| | - Samy Yousef
- Department of Production Engineering and Printing Technology, Akhbar Elyom Academy 6th of October, Giza 12511, Egypt.
- Department of Production Engineering, Faculty of Mechanical Engineering and Design, Kaunas University of Technology, 51424 Kaunas, Lithuania.
| | - Cristina Scolaro
- Department of Engineering, University of Messina, C.da Di Dio, 98166 Messina, Italy.
| | - Claudia Espro
- Department of Engineering, University of Messina, C.da Di Dio, 98166 Messina, Italy.
| | - Mariateresa Cristani
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, V. Annunziata, 98168 Messina, Italy.
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Paine MRL, Kooijman PC, Fisher GL, Heeren RMA, Fernández FM, Ellis SR. Visualizing molecular distributions for biomaterials applications with mass spectrometry imaging: a review. J Mater Chem B 2017; 5:7444-7460. [PMID: 32264222 DOI: 10.1039/c7tb01100h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Mass spectrometry imaging (MSI) is a rapidly emerging field that is continually finding applications in new and exciting areas. The ability of MSI to measure the spatial distribution of molecules at or near the surface of complex substrates makes it an ideal candidate for many applications, including those in the sphere of materials chemistry. Continual development and optimization of both ionization sources and analyzer technologies have resulted in a wide array of MSI tools available, both commercially available and custom-built, with each configuration possessing inherent strengths and limitations. Despite the unique potential of MSI over other chemical imaging methods, their potential and application to (bio)materials science remains in our view a largely underexplored avenue. This review will discuss these techniques enabling high parallel molecular detection, focusing on those with reported uses in (bio)materials chemistry applications and highlighted with select applications. Different technologies are presented in three main sections; secondary ion mass spectrometry (SIMS) imaging, matrix-assisted laser desorption ionization (MALDI) MSI, and emerging MSI technologies with potential for biomaterial analysis. The first two sections (SIMS and MALDI) discuss well-established methods that are continually evolving both in technological advancements and in experimental versatility. In the third section, relatively new and versatile technologies capable of performing measurements under ambient conditions will be introduced, with reported applications in materials chemistry or potential applications discussed. The aim of this review is to provide a concise resource for those interested in utilizing MSI for applications such as biomimetic materials, biological/synthetic material interfaces, polymer formulation and bulk property characterization, as well as the spatial and chemical distributions of nanoparticles, or any other molecular imaging application requiring broad chemical speciation.
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Affiliation(s)
- Martin R L Paine
- M4I, The Maastricht MultiModal Molecular Imaging Institute, Maastricht University, Maastricht 6229 ER, The Netherlands.
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Horvat G, Xhanari K, Finšgar M, Gradišnik L, Maver U, Knez Ž, Novak Z. Novel ethanol-induced pectin–xanthan aerogel coatings for orthopedic applications. Carbohydr Polym 2017; 166:365-376. [DOI: 10.1016/j.carbpol.2017.03.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 02/13/2017] [Accepted: 03/04/2017] [Indexed: 10/20/2022]
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Fröhlich SM, Eilenberg M, Svirkova A, Grasl C, Liska R, Bergmeister H, Marchetti-Deschmann M. Mass spectrometric imaging of in vivo protein and lipid adsorption on biodegradable vascular replacement systems. Analyst 2016. [PMID: 26198453 DOI: 10.1039/c5an00921a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cardiovascular diseases present amongst the highest mortality risks in Western civilization and are frequently caused by arteriosclerotic vessel failure. Coronary artery and peripheral vessel reconstruction necessitates the use of small diameter systems that are mechanically stress-resistant and biocompatible. Expanded polytetrafluorethylene (ePTFE) is amongst the materials used most frequently for non-degradable and bio-degradable vessel reconstruction procedures, with thermoplastic polyurethanes (TPU) representing a promising substitute. The present study describes and compares the biological adsorption and diffusion occurring with both materials following implantation in rat models. Gel electrophoresis and thin-layer chromatography, combined with mass spectrometry and mass spectrometry imaging, were utilized to identify the adsorbed lipids and proteins. The results were compared with the analytes present in native aorta tissue. It was revealed that both polymers were severely affected by biological adsorption after 10 min in vivo. Proteins associated with cell growth and migration were identified, especially on the luminal graft surface, while lipids were found to be located on both the luminal and abluminal surfaces. Lipid adsorption and cholesterol diffusion were found to be correlated with the polymer modifications identified on degradable thermoplastic urethane graft samples, with the latter revealing extensive cholesterol adsorption. The present study demonstrates an interaction between biological matter and both graft materials, and provides insights into polymer changes, in particular, those observed with thermoplastic urethanes already after 10 min in vivo exposure. ePTFE demonstrated minor polymer modifications, whereas several different polymer signals were observed for TPU, all were co-localized with biological signals.
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Affiliation(s)
- Sophie M Fröhlich
- Institute of Chemical Technologies and Analytics, Vienna University of Technology, Vienna, Austria.
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Fröhlich SM, Archodoulaki VM, Allmaier G, Marchetti-Deschmann M. MALDI-TOF Mass Spectrometry Imaging Reveals Molecular Level Changes in Ultrahigh Molecular Weight Polyethylene Joint Implants in Correlation with Lipid Adsorption. Anal Chem 2014; 86:9723-32. [DOI: 10.1021/ac5025232] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Sophie M. Fröhlich
- Institute of Chemical
Technologies and Analytics, Vienna University of Technology, Getreidemarkt 9, 1090 Vienna, Austria
| | - Vasiliki-Maria Archodoulaki
- Institute
of Materials
Science and Technology, Vienna University of Technology, Favoritenstrasse 9-11, 1040 Vienna, Austria
| | - Günter Allmaier
- Institute of Chemical
Technologies and Analytics, Vienna University of Technology, Getreidemarkt 9, 1090 Vienna, Austria
| | - Martina Marchetti-Deschmann
- Institute of Chemical
Technologies and Analytics, Vienna University of Technology, Getreidemarkt 9, 1090 Vienna, Austria
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