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Tathe U, Khopkar S, Rasam P, Kancherla A, Dandekar P, Jain R. Impact of stirring material on formation of submicron and subvisible aggregates in mAbs by quantitative laser diffraction, dynamic light scattering and background membrane imaging. Int J Pharm 2024; 660:124321. [PMID: 38857661 DOI: 10.1016/j.ijpharm.2024.124321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 06/04/2024] [Accepted: 06/07/2024] [Indexed: 06/12/2024]
Abstract
Aggregation of monoclonal antibodies (mAbs) is the driving force for their undesirable immunogenic effects. There are multiple factors responsible for aggregation in therapeutic proteins. One significant cause is the process-related shear and interfacial stress generated due to impellers and stirrers. This investigation focuses on understanding the possible aggregation arising upon stirring mAb formulations using stirrers made of different materials. We used quantitative laser diffraction (qLD) to monitor and quantify the stirring induced formation of submicron and subvisible aggregates in the size range from 100 nm to 10 µm. We analysed various aspects of aggregate generation, such as onset of aggregation, particle size distribution, and concentration of aggregates generated using stirrers of different materials. We observed that mixing with stainless steel stirrers resulted in a quicker onset of aggregation and led to significantly higher concentrations of aggregates. Analysis of the stirred samples using dynamic light scattering (DLS) and background imaging technique (BMI) were conducted to complement the qLD analysis. All the three techniques resulted in a similar trend, showing presence of larger and higher quantities of aggregates in steel stirred samples, as compared to those stirred using PEEK and glass. Additionally, we performed SEC-HPLC to quantify the soluble fraction of monomer and recorded that the least amount was present in the steel stirred samples. This work highlights the need for optimizing the materials used for fabricating the stirrers/impellers.
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Affiliation(s)
- Utkarsh Tathe
- Department of Biological Sciences and Biotechnology, Institute of Chemical Technology, Matunga, Mumbai 400019, India
| | - Sampada Khopkar
- Shimadzu Analytical (India) Private Limited, 1 A/B, Rushabh Chambers, Marol, Andheri East, Mumbai 400059, India
| | - Pratap Rasam
- Shimadzu Analytical (India) Private Limited, 1 A/B, Rushabh Chambers, Marol, Andheri East, Mumbai 400059, India
| | - Aswani Kancherla
- Department of Biological Sciences and Biotechnology, Institute of Chemical Technology, Matunga, Mumbai 400019, India
| | - Prajakta Dandekar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai 400019, India.
| | - Ratnesh Jain
- Department of Biological Sciences and Biotechnology, Institute of Chemical Technology, Matunga, Mumbai 400019, India.
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2
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Suryalakshmi P, Sundarapandian A, Mercyjayapriya J, Pachaiyappan M, Suresh P, Valappil S, Aarthy M, Ayyadurai N. Genetically encoded biocompatible anti-coagulant protein-coated coronary artery stents drive endothelialization. Colloids Surf B Biointerfaces 2024; 238:113908. [PMID: 38677153 DOI: 10.1016/j.colsurfb.2024.113908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/18/2024] [Accepted: 04/07/2024] [Indexed: 04/29/2024]
Abstract
In response to the critical demand for advancements in coronary artery stents, this study addresses the challenges associated with arterial recoil and restenosis post-angioplasty and the imperative to encourage rapid re-endothelialization for minimizing thrombosis risks. We employed an innovative approach inspired by mussel adhesion, incorporating placental anticoagulant protein (AnnexinV) on stent design. The introduction of a post-translationally modified catecholic amino acid L-3,4-dihydroxyphenylalanine (L-Dopa), mimicking mussel characteristics, allowed for effective surface modification of Stainless steel stents through genetic code engineering in AnnexinV (AnxDopa). The efficacy of AnxDopa was analyzed through microscale thermophoresis and flow cytometry, confirming AnxDopa's exceptional binding with phosphatidylserine and activated platelets. AnxDopa coated stainless steel demonstrates remarkable bio-, hemo-, and immuno-compatibility, preventing smooth muscle cell proliferation, platelet adhesion, and fibrin formation. It acts as an interface between the stent and biological fluid, which facilitates the anticoagulation and rapid endothelialization. Surface modification of SS verified through XPS analysis and contact angle measurement attests to the efficacy of AnxDopa mediated surface modification. The hydrophilic nature of the AnxDopa-coated surface enhanced the endothelialization through increased protein absorption. This approach represents a significant stride in developing coronary stents with improved biocompatibility and reduced restenosis risks, offering valuable contributions to scientific and clinical realms alike.
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Affiliation(s)
- Pandurangan Suryalakshmi
- Department of Biochemistry and Biotechnology, Council of Scientific and Industrial Research - Central Leather Research Institute, Chennai 600020, India; Academy of Scientific and Innovative Research, Ghaziabad 201002, India; Sona College of Arts and Science, Salem 636005, India
| | - Ashokraj Sundarapandian
- Department of Biochemistry and Biotechnology, Council of Scientific and Industrial Research - Central Leather Research Institute, Chennai 600020, India; Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Jebakumar Mercyjayapriya
- Department of Biochemistry and Biotechnology, Council of Scientific and Industrial Research - Central Leather Research Institute, Chennai 600020, India; Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Mohandass Pachaiyappan
- Department of Biochemistry and Biotechnology, Council of Scientific and Industrial Research - Central Leather Research Institute, Chennai 600020, India; Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Prem Suresh
- Department of Biochemistry and Biotechnology, Council of Scientific and Industrial Research - Central Leather Research Institute, Chennai 600020, India; Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Sisila Valappil
- Department of Biochemistry and Biotechnology, Council of Scientific and Industrial Research - Central Leather Research Institute, Chennai 600020, India; Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Mayilvahanan Aarthy
- Department of Biochemistry and Biotechnology, Council of Scientific and Industrial Research - Central Leather Research Institute, Chennai 600020, India
| | - Niraikulam Ayyadurai
- Department of Biochemistry and Biotechnology, Council of Scientific and Industrial Research - Central Leather Research Institute, Chennai 600020, India; Academy of Scientific and Innovative Research, Ghaziabad 201002, India.
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3
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Neal CJ, Kolanthai E, Wei F, Coathup M, Seal S. Surface Chemistry of Biologically Active Reducible Oxide Nanozymes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2211261. [PMID: 37000888 DOI: 10.1002/adma.202211261] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 03/15/2023] [Indexed: 06/19/2023]
Abstract
Reducible metal oxide nanozymes (rNZs) are a subject of intense recent interest due to their catalytic nature, ease of synthesis, and complex surface character. Such materials contain surface sites which facilitate enzyme-mimetic reactions via substrate coordination and redox cycling. Further, these surface reactive sites are shown to be highly sensitive to stresses within the nanomaterial lattice, the physicochemical environment, and to processing conditions occurring as part of their syntheses. When administered in vivo, a complex protein corona binds to the surface, redefining its biological identity and subsequent interactions within the biological system. Catalytic activities of rNZs each deliver a differing impact on protein corona formation, its composition, and in turn, their recognition, and internalization by host cells. Improving the understanding of the precise principles that dominate rNZ surface-biomolecule adsorption raises the question of whether designer rNZs can be engineered to prevent corona formation, or indeed to produce "custom" protein coronas applied either in vitro, and preadministration, or formed immediately upon their exposure to body fluids. Here, fundamental surface chemistry processes and their implications in rNZ material performance are considered. In particular, material structures which inform component adsorption from the application environment, including substrates for enzyme-mimetic reactions are discussed.
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Affiliation(s)
- Craig J Neal
- Advanced Materials Processing and Analysis Center, Nanoscience Technology Center (NSTC), Materials Science and Engineering, College of Medicine, University of Central Florida, Orlando, FL, 32816, USA
| | - Elayaraja Kolanthai
- Advanced Materials Processing and Analysis Center, Nanoscience Technology Center (NSTC), Materials Science and Engineering, College of Medicine, University of Central Florida, Orlando, FL, 32816, USA
| | - Fei Wei
- Biionix Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
| | - Melanie Coathup
- Biionix Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
| | - Sudipta Seal
- Advanced Materials Processing and Analysis Center, Nanoscience Technology Center (NSTC), Materials Science and Engineering, College of Medicine, University of Central Florida, Orlando, FL, 32816, USA
- Biionix Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
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4
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Zhang H, Li X, Qu Z, Zhang W, Wang Q, Cao D, Wang Y, Wang X, Wang Y, Yu L, Ding J. Effects of serum proteins on corrosion rates and product bioabsorbability of biodegradable metals. Regen Biomater 2023; 11:rbad112. [PMID: 38173765 PMCID: PMC10761199 DOI: 10.1093/rb/rbad112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/03/2023] [Accepted: 12/08/2023] [Indexed: 01/05/2024] Open
Abstract
Corrodible metals are the newest kind of biodegradable materials and raise a new problem of the corrosion products. However, the removal of the precipitated products has been unclear and even largely ignored in publications. Herein, we find that albumin, an abundant macromolecule in serum, enhances the solubility of corrosion products of iron in blood mimetic Hank's solution significantly. This is universal for other main biodegradable metals such as magnesium, zinc and polyester-coated iron. Albumin also influences corrosion rates in diverse trends in Hank's solution and normal saline. Based on quantitative study theoretically and experimentally, both the effects on corrosion rates and soluble fractions are interpreted by a unified mechanism, and the key factor leading to different corrosion behaviors in corrosion media is the interference of albumin to the Ca/P passivation layer on the metal surface. This work has illustrated that the interactions between metals and media macromolecules should be taken into consideration in the design of the next-generation metal-based biodegradable medical devices in the formulism of precision medicine. The improved Hank's solution in the presence of albumin and with a higher content of initial calcium salt is suggested to access biodegradable metals potentially for cardiovascular medical devices, where the content of calcium salt is calculated after consideration of chelating of calcium ions by albumin, resulting in the physiological concentration of free calcium ions.
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Affiliation(s)
- Hongjie Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Xin Li
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Zehua Qu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Wanqian Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Qunsong Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Dinglingge Cao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Yaoben Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Xin Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Yang Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
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5
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Asai M, Morita Y, Meng L, Miyazaki H, Yoshida N. Dehalococcoides mccartyi strain NIT01 grows more stably in vessels made of pure titanium rather than the stainless alloy SUS304. ENVIRONMENTAL MICROBIOLOGY REPORTS 2023; 15:557-567. [PMID: 37594161 PMCID: PMC10667658 DOI: 10.1111/1758-2229.13192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 07/28/2023] [Indexed: 08/19/2023]
Abstract
Advances in many isolation studies have revealed that pure Dehalococcoides grow stably, although the large-scale pure cultivation of Dehalococcoides has yet to be established. In this study, 7 L-culturing of Dehalococcoides mccartyi strain NIT01 was first performed using vessels made of glass and stainless alloy SUS304. All batches cultured in the glass vessel successfully dechlorinated >95% of 1 mM trichloroethene (TCE) to ethene (ETH), whereas only 5 out of 13 batches cultured in the SUS304 vessel did the same. The difference in dechlorination efficiency suggested the possible inhibition of dechlorination by SUS304. Also, the strain NIT01 showed long delays in dechlorination with pieces of SUS316, steel, and a repeatedly used SUS304, but not with titanium. The repeatedly used SUS304 cracked and increased the Fe2+ concentration to ≥76 μM. Dechlorination by this strain was also inhibited with ≥1000 μM Fe2+ and ≥23 μM Cr3+ but not with ≤100 μM Ni2+ , suggesting that Cr3+ eluted from solid stainless alloys inhibited the dechlorination. Culturing in a titanium vessel instead of a stainless alloy showed the complete dechlorination of 1 mM TCE within 12-28 days with a growth yield of 2.7 × 107 cells/μmol-released Cl- , even after repeating use of the vessels six times.
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Affiliation(s)
- Masaki Asai
- Department of Civil EngineeringNagoya Institute of TechnologyNagoyaJapan
| | - Yuki Morita
- Department of Civil EngineeringNagoya Institute of TechnologyNagoyaJapan
| | - Lingyu Meng
- Department of Civil EngineeringNagoya Institute of TechnologyNagoyaJapan
| | - Hidetoshi Miyazaki
- Department of Physical Science and EngineeringNagoya Institute of TechnologyNagoyaJapan
| | - Naoko Yoshida
- Department of Civil EngineeringNagoya Institute of TechnologyNagoyaJapan
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6
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Axelrod RD, Baumgartner J, Beyrer M, Mathys A. Experimental and simulation-based investigation of the interplay between factor gradients following pulsed electric field treatments triggering whey protein aggregation. J FOOD ENG 2023. [DOI: 10.1016/j.jfoodeng.2022.111308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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7
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Villapun Puzas VM, Carter LN, Schröder C, Colavita PE, Hoey DA, Webber MA, Addison O, Shepherd DET, Attallah MM, Grover LM, Cox SC. Surface Free Energy Dominates the Biological Interactions of Postprocessed Additively Manufactured Ti-6Al-4V. ACS Biomater Sci Eng 2022; 8:4311-4326. [PMID: 36127820 PMCID: PMC9554875 DOI: 10.1021/acsbiomaterials.2c00298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Additive manufacturing (AM) has emerged as a disruptive
technique
within healthcare because of its ability to provide personalized devices;
however, printed metal parts still present surface and microstructural
defects, which may compromise mechanical and biological interactions.
This has made physical and/or chemical postprocessing techniques essential
for metal AM devices, although limited fundamental knowledge is available
on how alterations in physicochemical properties influence AM biological
outcomes. For this purpose, herein, powder bed fusion Ti-6Al-4V samples
were postprocessed with three industrially relevant techniques: polishing,
passivation, and vibratory finishing. These surfaces were thoroughly
characterized in terms of roughness, chemistry, wettability, surface
free energy, and surface ζ-potential. A significant increase
in Staphylococcus epidermidis colonization
was observed on both polished and passivated samples, which was linked
to high surface free energy donor γ– values
in the acid–base, γAB component. Early osteoblast
attachment and proliferation (24 h) were not influenced by these properties,
although increased mineralization was observed for both these samples.
In contrast, osteoblast differentiation on stainless steel was driven
by a combination of roughness and chemistry. Collectively, this study
highlights that surface free energy is a key driver between AM surfaces
and cell interactions. In particular, while low acid–base components
resulted in a desired reduction in S. epidermidis colonization, this was followed by reduced mineralization. Thus,
while surface free energy can be used as a guide to AM device development,
optimization of bacterial and mammalian cell interactions should be
attained through a combination of different postprocessing techniques.
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Affiliation(s)
| | - Luke N Carter
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, U.K
| | - Christian Schröder
- School of Chemistry, CRANN and AMBER Research Centres, Trinity College Dublin, College Green, Dublin 2 D02 PN4, Ireland
| | - Paula E Colavita
- School of Chemistry, CRANN and AMBER Research Centres, Trinity College Dublin, College Green, Dublin 2 D02 PN4, Ireland
| | - David A Hoey
- Trinity Biomedical Sciences Institute, Trinity College, Trinity Centre for Biomedical Engineering, Dublin D02 R590, Ireland.,Department of Mechanical Manufacturing and Biomedical Engineering, School of Engineering, Trinity College, Dublin D02 DK07, Ireland
| | - Mark A Webber
- Quadram Institute Bioscience, Norwich Research Park, Colney NR4 7UQ, U.K.,Norwich Medical School, University of East Anglia, Norwich Research Park, Colney NR4 7TJ, U.K
| | - Owen Addison
- Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London SE1 9RT, U.K
| | | | - Moataz M Attallah
- School of Materials and Metallurgy, University of Birmingham, Edgbaston B15 2TT, U.K
| | - Liam M Grover
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, U.K
| | - Sophie C Cox
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, U.K
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Kessler A, Hedberg J, Blomberg E, Odnevall I. Reactive Oxygen Species Formed by Metal and Metal Oxide Nanoparticles in Physiological Media—A Review of Reactions of Importance to Nanotoxicity and Proposal for Categorization. NANOMATERIALS 2022; 12:nano12111922. [PMID: 35683777 PMCID: PMC9182937 DOI: 10.3390/nano12111922] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 05/30/2022] [Accepted: 06/02/2022] [Indexed: 02/01/2023]
Abstract
Diffusely dispersed metal and metal oxide nanoparticles (NPs) can adversely affect living organisms through various mechanisms and exposure routes. One mechanism behind their toxic potency is their ability to generate reactive oxygen species (ROS) directly or indirectly to an extent that depends on the dose, metal speciation, and exposure route. This review provides an overview of the mechanisms of ROS formation associated with metal and metal oxide NPs and proposes a possible way forward for their future categorization. Metal and metal oxide NPs can form ROS via processes related to corrosion, photochemistry, and surface defects, as well as via Fenton, Fenton-like, and Haber–Weiss reactions. Regular ligands such as biomolecules can interact with metallic NP surfaces and influence their properties and thus their capabilities of generating ROS by changing characteristics such as surface charge, surface composition, dissolution behavior, and colloidal stability. Interactions between metallic NPs and cells and their organelles can indirectly induce ROS formation via different biological responses. H2O2 can also be generated by a cell due to inflammation, induced by interactions with metallic NPs or released metal species that can initiate Fenton(-like) and Haber–Weiss reactions forming various radicals. This review discusses these different pathways and, in addition, nano-specific aspects such as shifts in the band gaps of metal oxides and how these shifts at biologically relevant energies (similar to activation energies of biological reactions) can be linked to ROS production and indicate which radical species forms. The influences of kinetic aspects, interactions with biomolecules, solution chemistry (e.g., Cl− and pH), and NP characteristics (e.g., size and surface defects) on ROS mechanisms and formation are discussed. Categorization via four tiers is suggested as a way forward to group metal and metal oxide NPs based on the ROS reaction pathways that they may undergo, an approach that does not include kinetics or environmental variations. The criteria for the four tiers are based on the ability of the metallic NPs to induce Fenton(-like) and Haber–Weiss reactions, corrode, and interact with biomolecules and their surface catalytic properties. The importance of considering kinetic data to improve the proposed categorization is highlighted.
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Affiliation(s)
- Amanda Kessler
- KTH Royal Institute of Technology, Division of Surface and Corrosion Science, Department of Chemistry, 100 44 Stockholm, Sweden; (J.H.); (E.B.)
- Correspondence: (A.K.); (I.O.); Tel.: +46-87906621 (I.O.)
| | - Jonas Hedberg
- KTH Royal Institute of Technology, Division of Surface and Corrosion Science, Department of Chemistry, 100 44 Stockholm, Sweden; (J.H.); (E.B.)
- Surface Science Western, Western University, London, ON N6G 0J3, Canada
| | - Eva Blomberg
- KTH Royal Institute of Technology, Division of Surface and Corrosion Science, Department of Chemistry, 100 44 Stockholm, Sweden; (J.H.); (E.B.)
| | - Inger Odnevall
- KTH Royal Institute of Technology, Division of Surface and Corrosion Science, Department of Chemistry, 100 44 Stockholm, Sweden; (J.H.); (E.B.)
- AIMES–Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institute and KTH Royal Institute of Technology, 100 44 Stockholm, Sweden
- Karolinska Institute, Department of Neuroscience, 171 77 Stockholm, Sweden
- Correspondence: (A.K.); (I.O.); Tel.: +46-87906621 (I.O.)
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Bormann T, Nebel L, Müller U, Mai PT, Gibmeier J, Renkawitz T, Kretzer JP. Influence of FeCl 3 and H 2O 2 in corrosion testing of modular taper connections in total hip arthroplasty: An in vitro study. Acta Biomater 2022; 145:427-435. [PMID: 35417798 DOI: 10.1016/j.actbio.2022.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/22/2022] [Accepted: 04/06/2022] [Indexed: 11/29/2022]
Abstract
Corrosion at the modular taper junctions in total hip arthroplasty is clinically relevant because wear particles and ions generated at this interface can lead to adverse local tissue reactions or even implant failure. In vitro tribo-corrosion tests are usually accomplished in saline solutions or calf serum (CS), but the addition of H2O2 and FeCl3 have been suggested to mimic inflammatory conditions in the joint. Inflammatory conditions may aggravate corrosive processes and, therefore, should lead in vitro to a more severe and realistic tribo-corrosive material attack. Corrosion testing at 12/14 tapers comprising a CoCrMo head taper and a Ti6Al4V trunnion was accomplished in five electrolytes (Ringer's solution (RS), RS with 30 mM H2O2 and/or 0.7 mM FeCl3 and CS) under dynamical loading for five million cycles. Resulting material loss was determined gravimetrically and by ion analysis. The tribo-corrosive material degradation was investigated by light and electron microscopy. FeCl3 enhanced the material loss from taper connections while H2O2 did not lead to a significant alteration of total material loss. In comparison to pure RS, corrosion testing in CS decreased material loss at the head taper while it increased material loss at the trunnion. The combination of FeCl3 and H2O2 led to an enhanced occurrence of micro cracks at the trunnion surface. Adding FeCl3 and optionally also H2O2 aggravates material loss in in vitro corrosion testing of taper junctions and leads to harsher and probably more realistic testing conditions. STATEMENT OF SIGNIFICANCE: Tribo-corrosive processes at taper connections in hip implants are complex and can lead to major clinical implications. Joint inflammation is assumed to aggravate taper corrosion in vivo, why FeCl3 and H2O2 have been proposed as additives to electrolytes to simulate inflammatory conditions in vitro. Often used fretting test setups, however, do not involve real taper geometries. Besides, testing is often accomplished in saline solutions or calf serum, which do not induce a clinically significant amount of corrosive material degradation. This study presents an approach to increase tribo-corrosive processes at realistic taper connections by adding FeCl3 and/or H2O2. Unlike H2O2, FeCl3 increased material loss from taper connections. The combination of both additives enhanced micro crack formation at the trunnion surfaces.
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Affiliation(s)
- Therese Bormann
- Laboratory of Biomechanics and Implant Research, Department of Orthopaedics, Heidelberg University Hospital, Schlierbacher Landstrasse 200a, Heidelberg 69118, Germany.
| | - Laura Nebel
- Laboratory of Biomechanics and Implant Research, Department of Orthopaedics, Heidelberg University Hospital, Schlierbacher Landstrasse 200a, Heidelberg 69118, Germany
| | - Ulrike Müller
- Laboratory of Biomechanics and Implant Research, Department of Orthopaedics, Heidelberg University Hospital, Schlierbacher Landstrasse 200a, Heidelberg 69118, Germany
| | - Phuong Thao Mai
- Institute for Applied Materials, Karlsruhe Institute of Technology, Engelbert-Arnold-Strasse 4, Karlsruhe 76131, Germany
| | - Jens Gibmeier
- Institute for Applied Materials, Karlsruhe Institute of Technology, Engelbert-Arnold-Strasse 4, Karlsruhe 76131, Germany
| | - Tobias Renkawitz
- Laboratory of Biomechanics and Implant Research, Department of Orthopaedics, Heidelberg University Hospital, Schlierbacher Landstrasse 200a, Heidelberg 69118, Germany
| | - J Philippe Kretzer
- Laboratory of Biomechanics and Implant Research, Department of Orthopaedics, Heidelberg University Hospital, Schlierbacher Landstrasse 200a, Heidelberg 69118, Germany
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10
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Vallabani NVS, Alijagic A, Persson A, Odnevall I, Särndahl E, Karlsson HL. Toxicity evaluation of particles formed during 3D-printing: Cytotoxic, genotoxic, and inflammatory response in lung and macrophage models. Toxicology 2022; 467:153100. [PMID: 35032623 DOI: 10.1016/j.tox.2022.153100] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 12/28/2021] [Accepted: 01/11/2022] [Indexed: 11/18/2022]
Abstract
Additive manufacturing (AM) or "3D-printing" is a ground-breaking technology that enables the production of complex 3D parts. Its rapid growth calls for immediate toxicological investigations of possible human exposures in order to estimate occupational health risks. Several laser-based powder bed fusion AM techniques are available of which many use metal powder in the micrometer range as feedstock. Large energy input from the laser on metal powders generates several by-products, like spatter and condensate particles. Due to often altered physicochemical properties and composition, spatter and condensate particles can result in different toxicological responses compared to the original powder particles. The toxicity of such particles has, however, not yet been investigated. The aim of the present study was to investigate the toxicity of condensate/spatter particles formed and collected upon selective laser melting (SLM) printing of metal alloy powders, including a nickel-chromium-based superalloy (IN939), a nickel-based alloy (Hastelloy X, HX), a high-strength maraging steel (18Ni300), a stainless steel (316L), and a titanium alloy (Ti6Al4V). Toxicological endpoints investigated included cytotoxicity, generation of reactive oxygen species (ROS), genotoxicity (comet and micronucleus formation), and inflammatory response (cytokine/chemokine profiling) following exposure of human bronchial epithelial cells (HBEC) or monocytes/macrophages (THP-1). The results showed no or minor cytotoxicity in the doses tested (10-100 μg/mL). Furthermore, no ROS generation or formation of micronucleus was observed in the HBEC cells. However, an increase in DNA strand breaks (detected by comet assay) was noted in cells exposed to HX, IN939, and Ti6Al4V, whereas no evident release of pro-inflammatory cytokine was observed from macrophages. Particle and surface characterization showed agglomeration in solution and different surface oxide compositions compared to the nominal bulk content. The extent of released nickel was small and related to the nickel content of the surface oxides, which was largely different from the bulk content. This may explain the limited toxicity found despite the high Ni bulk content of several powders. Taken together, this study suggests relatively low acute toxicity of condensates/spatter particles formed during SLM-printing using IN939, HX, 18Ni300, 316L, and Ti6Al4V as original metal powders.
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Affiliation(s)
| | - Andi Alijagic
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, SE-701 82, Örebro, Sweden; Inflammatory Response and Infection Susceptibility Centre (iRiSC), Faculty of Medicine and Health, Örebro University, SE-701 82, Örebro, Sweden
| | - Alexander Persson
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, SE-701 82, Örebro, Sweden; Inflammatory Response and Infection Susceptibility Centre (iRiSC), Faculty of Medicine and Health, Örebro University, SE-701 82, Örebro, Sweden
| | - Inger Odnevall
- KTH Royal Institute of Technology, Division of Surface and Corrosion Science, SE-100 44, Stockholm, Sweden; AIMES - Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, Sweden; Department of Neuroscience, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Eva Särndahl
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, SE-701 82, Örebro, Sweden; Inflammatory Response and Infection Susceptibility Centre (iRiSC), Faculty of Medicine and Health, Örebro University, SE-701 82, Örebro, Sweden
| | - Hanna L Karlsson
- Institute of Environmental Medicine, Karolinska Institute, SE-171 77, Stockholm, Sweden.
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11
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Modification of Biocorrosion and Cellular Response of Magnesium Alloy WE43 by Multiaxial Deformation. METALS 2022. [DOI: 10.3390/met12010105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The study shows that multiaxial deformation (MAD) treatment leads to grain refinement in magnesium alloy WE43. Compared to the initial state, the MAD-processed alloy exhibited smoother biocorrosion dynamics in a fetal bovine serum and in a complete cell growth medium. Examination by microCT demonstrated retardation of the decline in the alloy volume and the Hounsfield unit values. An attendant reduction in the rate of accumulation of the biodegradation products in the immersion medium, a less pronounced alkalization, and inhibited sedimentation of biodegradation products on the surface of the alloy were observed after MAD. These effects were accompanied with an increase in the osteogenic mesenchymal stromal cell viability on the alloy surface and in a medium containing their extracts. It is expected that the more orderly dynamics of biodegradation of the WE43 alloy after MAD and the stimulation of cell colonization will effectively promote stable osteosynthesis, making repeat implant extraction surgeries unnecessary.
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12
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Nady H, El-Rabiei M, Bahrawy A, El-Katori EE. Assessment of H2O2/albumin and glucose on the biomedical iron alloys corrosion in simulated body fluid: Experimental, surface, and computational investigations. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116823] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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13
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Gorejová R, Oriňaková R, Macko J, Oriňak A, Kupková M, Hrubovčáková M, Džupon M, Sopčák T, Ševc J, Maskaľová I, Džunda R. Electrochemical behavior, biocompatibility and mechanical performance of biodegradable iron with PEI coating. J Biomed Mater Res A 2021; 110:659-671. [PMID: 34595831 DOI: 10.1002/jbm.a.37318] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 09/20/2021] [Accepted: 09/22/2021] [Indexed: 12/25/2022]
Abstract
Coating of the biodegradable metals represents an effective way of modification of their properties. Insufficient biological, mechanical, or degradation performance of pure metals may be enhanced when the proper type of organic polymer coating is used. In our previous work, the significant effect of the polyethyleneimine (PEI) coating not only on the rate but also on the type of corrosion was discovered. To bring a comprehensive overview of the Fe-PEI system performance, iron-based biodegradable scaffolds with polyethyleneimine coating were studied and their cytocompatibility and hemocompatibility, and mechanical properties were evaluated and discussed in this work. Electrochemical impedance spectroscopy (EIS) measurements were conducted for further study of material behavior. Biological analyses (MTS assay, fluorescent imaging, hemocompatibility tests) showed better cell proliferation on the surface of Fe-PEI samples but not sufficient overall cytocompatibility. Good anti-platelet adhesion properties but higher hemolysis when compared to the pure iron was also observed for the coated samples. Mechanical properties of the prepared Fe-PEI material were enhanced after coating. These findings suggest that the Fe-PEI may be an interesting potential biomaterial after further composition optimization resulting in lower cytotoxicity and better hemocompatibility.
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Affiliation(s)
- Radka Gorejová
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Science, P.J. Šafárik University in Košice, Košice, Slovakia
| | - Renáta Oriňaková
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Science, P.J. Šafárik University in Košice, Košice, Slovakia
| | - Ján Macko
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Science, P.J. Šafárik University in Košice, Košice, Slovakia
| | - Andrej Oriňak
- Department of Physical Chemistry, Institute of Chemistry, Faculty of Science, P.J. Šafárik University in Košice, Košice, Slovakia
| | - Miriam Kupková
- Division of Functional and Hybrid Systems,Division of Ceramic and Non-metallic Systems, Division of Metallic Systems, Institute of Materials Research, Slovak Academy of Sciences, Košice, Slovakia
| | - Monika Hrubovčáková
- Division of Functional and Hybrid Systems,Division of Ceramic and Non-metallic Systems, Division of Metallic Systems, Institute of Materials Research, Slovak Academy of Sciences, Košice, Slovakia
| | - Miroslav Džupon
- Division of Functional and Hybrid Systems,Division of Ceramic and Non-metallic Systems, Division of Metallic Systems, Institute of Materials Research, Slovak Academy of Sciences, Košice, Slovakia
| | - Tibor Sopčák
- Division of Functional and Hybrid Systems,Division of Ceramic and Non-metallic Systems, Division of Metallic Systems, Institute of Materials Research, Slovak Academy of Sciences, Košice, Slovakia
| | - Juraj Ševc
- Department of Cell Biology, Institute of Biology and Ecology, Faculty of Science, P.J. Šafárik University in Košice, Košice, Slovakia
| | - Iveta Maskaľová
- Department of Animal Nutrition and Husbandry, University of Veterinary Medicine and Pharmacy in Košice, Košice, Slovakia
| | - Róbert Džunda
- Division of Functional and Hybrid Systems,Division of Ceramic and Non-metallic Systems, Division of Metallic Systems, Institute of Materials Research, Slovak Academy of Sciences, Košice, Slovakia
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14
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Barberi J, Spriano S. Titanium and Protein Adsorption: An Overview of Mechanisms and Effects of Surface Features. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1590. [PMID: 33805137 PMCID: PMC8037091 DOI: 10.3390/ma14071590] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/09/2021] [Accepted: 03/19/2021] [Indexed: 12/14/2022]
Abstract
Titanium and its alloys, specially Ti6Al4V, are among the most employed materials in orthopedic and dental implants. Cells response and osseointegration of implant devices are strongly dependent on the body-biomaterial interface zone. This interface is mainly defined by proteins: They adsorb immediately after implantation from blood and biological fluids, forming a layer on implant surfaces. Therefore, it is of utmost importance to understand which features of biomaterials surfaces influence formation of the protein layer and how to guide it. In this paper, relevant literature of the last 15 years about protein adsorption on titanium-based materials is reviewed. How the surface characteristics affect protein adsorption is investigated, aiming to provide an as comprehensive a picture as possible of adsorption mechanisms and type of chemical bonding with the surface, as well as of the characterization techniques effectively applied to model and real implant surfaces. Surface free energy, charge, microroughness, and hydroxylation degree have been found to be the main surface parameters to affect the amount of adsorbed proteins. On the other hand, the conformation of adsorbed proteins is mainly dictated by the protein structure, surface topography at the nano-scale, and exposed functional groups. Protein adsorption on titanium surfaces still needs further clarification, in particular concerning adsorption from complex protein solutions. In addition, characterization techniques to investigate and compare the different aspects of protein adsorption on different surfaces (in terms of roughness and chemistry) shall be developed.
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Affiliation(s)
- Jacopo Barberi
- Department of Applied Science and Technology, Politecnico di Torino, 10129 Turin, Italy;
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15
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Talha M, Ma Y, Lin Y, Mandal AK, Sinha OP, Kong X. Corrosion performance of various deformed surfaces of implant steel for coronary stent applications: Effect of protein concentration. Colloids Surf B Biointerfaces 2020; 197:111407. [PMID: 33113491 DOI: 10.1016/j.colsurfb.2020.111407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 12/01/2022]
Abstract
This work was done to systematically elucidate the corrosion behavior of austenitic stainless steel subjected to various degree of cold deformation (10 %, 20 % & 30 %). The experiments were performed in phosphate buffer saline (PBS) solution having different concentrations of bovine serum albumin (0.2, 0.5, 1.0, 2.0, 4.0 g L-1). Potentiodynamic polarization tests and electrochemical impedance spectroscopy (EIS) analysis were performed to obtain the corrosion parameters. Scanning electron microscopy with energy dispersive X-ray (SEM-EDX), atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) were used to determine the surface morphologies and chemical compositions of the surface films. Contact angle analysis was also used to detect the hydrophilic character of sample surfaces. The BSA had a considerable effect of inhibition on the corrosion of SSs in annealed as well as in deformed state due to its adsorption on surface of steel. For annealed samples, at 4.0 g L-1BSA concentration, the corrosion resistance was drastically decreased but interestingly not for sample with more than 10 % deformation and the concentration effect of BSA is also not very significant after 0.5 g L-1 for deformed surfaces. The breakdown potential for 30 % deformed sample is quite higher in presence of BSA even at 4.0 g L-1 while it is lowest for annealed samples in the same condition. The variation in contact angle with deformation is very less after adsorption of BSA. On the basis of the obtained results, mechanism aspect for corrosion of steel in presence of protein is also deliberated.
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Affiliation(s)
- Mohd Talha
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, Sichuan, PR China; State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Sichuan, PR China
| | - Yucong Ma
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, Sichuan, PR China
| | - Yuanhua Lin
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, Sichuan, PR China; State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Sichuan, PR China.
| | - A K Mandal
- Department of Metallurgical and Materials Engineering, National Institute of Technology, Durgapur, 713209, West Bengal, India
| | - O P Sinha
- Department of Metallurgical Engineering, Indian Institute of Technology (BHU), Varanasi, 221005, UP, India
| | - Xiangwei Kong
- School of Petroleum Engineering, Yangtze University, Wuhan, 434023, Hubei, China
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16
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Klok O, Igual Munoz A, Mischler S. An Overview of Serum Albumin Interactions with Biomedical Alloys. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4858. [PMID: 33138286 PMCID: PMC7662596 DOI: 10.3390/ma13214858] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 10/25/2020] [Accepted: 10/27/2020] [Indexed: 01/23/2023]
Abstract
Understanding the interactions between biomedical alloys and body fluids is of importance for the successful and safe performance of implanted devices. Albumin, as the first protein that comes in contact with an implant surface, can determine the biocompatibility of biomedical alloys. The interaction of albumin with biomedical alloys is a complex process influenced by numerous factors. This literature overview aims at presenting the current understanding of the mechanisms of serum albumin (both Bovine Serum Albumin, BSA, and Human Serum Albumin, HSA) interactions with biomedical alloys, considering only those research works that present a mechanistic description of the involved phenomena. Widely used biomedical alloys, such as 316L steel, CoCrMo and Titanium alloys are specifically addressed in this overview. Considering the literature analysis, four albumin-related phenomena can be distinguished: adsorption, reduction, precipitation, and protein-metal binding. The experimental techniques used to understand and quantify those phenomena are described together with the studied parameters influencing them. The crucial effect of the electrochemical potential on those phenomena is highlighted. The effect of the albumin-related phenomena on corrosion behavior of biomedical materials also is discussed.
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Affiliation(s)
- Oksana Klok
- Tribology and Interfacial Chemistry Group, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland; (A.I.M.); (S.M.)
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17
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Correlation between protein adsorption and electrochemical corrosion behavior of niobium for bio-implant application. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04634-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Recent Advances in Studying Interfacial Adsorption of Bioengineered Monoclonal Antibodies. Molecules 2020; 25:molecules25092047. [PMID: 32353995 PMCID: PMC7249052 DOI: 10.3390/molecules25092047] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/13/2020] [Accepted: 04/23/2020] [Indexed: 11/24/2022] Open
Abstract
Monoclonal antibodies (mAbs) are an important class of biotherapeutics; as of 2020, dozens are commercialized medicines, over a hundred are in clinical trials, and many more are in preclinical developmental stages. Therapeutic mAbs are sequence modified from the wild type IgG isoforms to varying extents and can have different intrinsic structural stability. For chronic treatments in particular, high concentration (≥ 100 mg/mL) aqueous formulations are often preferred for at-home administration with a syringe-based device. MAbs, like any globular protein, are amphiphilic and readily adsorb to interfaces, potentially causing structural deformation and even unfolding. Desorption of structurally perturbed mAbs is often hypothesized to promote aggregation, potentially leading to the formation of subvisible particles and visible precipitates. Since mAbs are exposed to numerous interfaces during biomanufacturing, storage and administration, many studies have examined mAb adsorption to different interfaces under various mitigation strategies. This review examines recent published literature focusing on adsorption of bioengineered mAbs under well-defined solution and surface conditions. The focus of this review is on understanding adsorption features driven by distinct antibody domains and on recent advances in establishing model interfaces suitable for high resolution surface measurements. Our summary highlights the need to further understand the relationship between mAb interfacial adsorption and desorption, solution aggregation, and product instability during fill-finish, transport, storage and administration.
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19
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Cuoq F, Benguigui J, Geijselaers C, Lampert F. Linking Thermoelectric Effect and Adsorption of Film Forming Amine as a Corrosion Inhibitor for Industrial Systems. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00576] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- F. Cuoq
- SABIC Limburg B.V., SABIC Technology
Center Geleen, Urmonderbaan 22, P.O.
Box 319, 6167 RD Geleen, The Netherlands
| | - J. Benguigui
- SABIC Limburg B.V., SABIC Technology
Center Geleen, Urmonderbaan 22, P.O.
Box 319, 6167 RD Geleen, The Netherlands
| | - C. Geijselaers
- SABIC Limburg B.V., SABIC Technology
Center Geleen, Urmonderbaan 22, P.O.
Box 319, 6167 RD Geleen, The Netherlands
| | - F. Lampert
- SABIC Limburg B.V., Koolwatersofstraat 1, 6161RA Geleen, The Netherlands
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20
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Aggregation and Particle Formation During Pumping of an Antibody Formulation Are Controlled by Electrostatic Interactions Between Pump Surfaces and Protein Molecules. J Pharm Sci 2020; 109:1473-1482. [DOI: 10.1016/j.xphs.2020.01.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/15/2020] [Accepted: 01/23/2020] [Indexed: 11/24/2022]
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21
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The progress on physicochemical properties and biocompatibility of tantalum-based metal bone implants. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2480-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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22
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Stainless steel in simulated milk and whey protein solutions – Influence of grade on corrosion and metal release. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135428] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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23
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Mei N, Hedberg J, Odnevall Wallinder I, Blomberg E. Influence of Biocorona Formation on the Transformation and Dissolution of Cobalt Nanoparticles under Physiological Conditions. ACS OMEGA 2019; 4:21778-21791. [PMID: 31891055 PMCID: PMC6933593 DOI: 10.1021/acsomega.9b02641] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 11/14/2019] [Indexed: 06/10/2023]
Abstract
Cobalt (Co) nanoparticles (NPs) are produced in different applications and unintentionally generated at several occupational and traffic settings. Their diffuse dispersion may lead to interactions with humans and aquatic organisms via different exposure routes that include their transformation/dissolution in biological media. This paper has investigated the particle stability and reactivity of Co NPs (dispersed by sonication prior to exposure) interacting with selected individual biomolecules (amino acids, polypeptides, and proteins) in phosphate-buffered saline (PBS). No or minor adsorption of amino acids (glutamine, glutamic acid, lysine, and cysteine) was observed on the Co NPs, independent of the functional group and charge. Instead, phosphate adsorption resulted in the formation of a surface layer (a corona) of Co phosphate. The adsorption of larger biomolecules (polyglutamic acid, polylysine, lysozyme, and mucin) was evident in parallel with the formation of Co phosphate. The dissolution of the Co NPs was rapid as 35-55% of the particle mass was dissolved within the first hour of exposure. The larger biomolecules suppressed the dissolution initially compared to exposure in PBS only, whereas the dissolution was essentially unaffected by the presence of amino acids, with cysteine as an exception. The formation of Co phosphate on the NP surface reduced the protective properties of the surface oxide of the Co NPs, as seen from the increased levels of the released Co when compared with the nonphosphate-containing saline. The results underline the diversity of possible outcomes with respect to surface characteristics and dissolution of Co NPs in biological media and emphasize the importance of surface interactions with phosphate on the NP characteristics and reactivity.
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Affiliation(s)
- Nanxuan Mei
- KTH
Royal Institute of Technology, Department of Chemistry, Division of Surface and Corrosion Science, Stockholm 114 28, Sweden
| | - Jonas Hedberg
- KTH
Royal Institute of Technology, Department of Chemistry, Division of Surface and Corrosion Science, Stockholm 114 28, Sweden
| | - Inger Odnevall Wallinder
- KTH
Royal Institute of Technology, Department of Chemistry, Division of Surface and Corrosion Science, Stockholm 114 28, Sweden
| | - Eva Blomberg
- KTH
Royal Institute of Technology, Department of Chemistry, Division of Surface and Corrosion Science, Stockholm 114 28, Sweden
- Division
Bioscience and Materials, RISE Research
Institutes of Sweden, Stockholm 111 21, Sweden
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24
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Jaiswal S, Dubey A, Haldar S, Roy P, Lahiri D. Differentialin vitrodegradation and protein adhesion behaviour of spark plasma sintering fabricated magnesium-based temporary orthopaedic implant in serum and simulated body fluid. Biomed Mater 2019; 15:015006. [DOI: 10.1088/1748-605x/ab4f8b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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25
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Lang AR, Engelberg DL, Walther C, Weiss M, Bosco H, Jenkins A, Livens FR, Law GTW. Cesium and Strontium Contamination of Nuclear Plant Stainless Steel: Implications for Decommissioning and Waste Minimization. ACS OMEGA 2019; 4:14420-14429. [PMID: 31528795 PMCID: PMC6740182 DOI: 10.1021/acsomega.9b01311] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 08/08/2019] [Indexed: 06/10/2023]
Abstract
Stainless steels can become contaminated with radionuclides at nuclear sites. Their disposal as radioactive waste would be costly. If the nature of steel contamination could be understood, effective decontamination strategies could be designed and implemented during nuclear site decommissioning in an effort to release the steels from regulatory control. Here, batch uptake experiments have been used to understand Sr and Cs (fission product radionuclides) uptake onto AISI Type 304 stainless steel under conditions representative of spent nuclear fuel storage (alkaline ponds) and PUREX nuclear fuel reprocessing (HNO3). Solution (ICP-MS) and surface measurements (GD-OES depth profiling, TOF-SIMS, and XPS) and kinetic modeling of Sr and Cs removal from solution were used to characterize their uptake onto the steel and define the chemical composition and structure of the passive layer formed on the steel surfaces. Under passivating conditions (when the steel was exposed to solutions representative of alkaline ponds and 3 and 6 M HNO3), Sr and Cs were maintained at the steel surface by sorption/selective incorporation into the Cr-rich passive film. In 12 M HNO3, corrosion and severe intergranular attack led to Sr diffusion into the passive layer and steel bulk. In HNO3, Sr and Cs accumulation was also commensurate with corrosion product (Fe and Cr) readsorption, and in the 12 M HNO3 system, XPS documented the presence of Sr and Cs chromates.
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Affiliation(s)
- Adam R. Lang
- Centre
for Radiochemistry Research, School of Chemistry and Corrosion and
Protection Centre, Materials Performance Centre, School of Materials, The University of Manchester, Manchester M13 9PL, U.K.
| | - Dirk L. Engelberg
- Centre
for Radiochemistry Research, School of Chemistry and Corrosion and
Protection Centre, Materials Performance Centre, School of Materials, The University of Manchester, Manchester M13 9PL, U.K.
| | - Clemens Walther
- Institute
of Radioecology and Radiation Protection, Leibniz-University Hannover, D-30419 Hannover, Germany
| | - Martin Weiss
- Institute
of Radioecology and Radiation Protection, Leibniz-University Hannover, D-30419 Hannover, Germany
| | - Hauke Bosco
- Institute
of Radioecology and Radiation Protection, Leibniz-University Hannover, D-30419 Hannover, Germany
| | - Alex Jenkins
- Sellafield
Ltd., Sellafield, Cumbria CA20 1PG, U.K.
| | - Francis R. Livens
- Centre
for Radiochemistry Research, School of Chemistry and Corrosion and
Protection Centre, Materials Performance Centre, School of Materials, The University of Manchester, Manchester M13 9PL, U.K.
| | - Gareth T. W. Law
- Centre
for Radiochemistry Research, School of Chemistry and Corrosion and
Protection Centre, Materials Performance Centre, School of Materials, The University of Manchester, Manchester M13 9PL, U.K.
- Radiochemistry
Unit, Department of Chemistry, The University
of Helsinki, Helsinki 00014, Finland
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26
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Talha M, Ma Y, Lin Y, Pan Y, Kong X, Sinha O, Behera C. Corrosion performance of cold deformed austenitic stainless steels for biomedical applications. CORROSION REVIEWS 2019; 37:283-306. [DOI: 10.1515/corrrev-2019-0004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
AbstractAustenitic stainless steels possess an excellent balance of strength and ductility along with the high ability to further raise their strength during cold deformation (CD). Corrosion resistance of austenitic stainless steels (SSs) is affected by cold deformation because passive films on the surface of steels are expected to be modified. A low level of CD enhances the surface diffusion, which results in the formation of a stable passive film leading to an increase in the corrosion resistance in neutral chloride solutions. The chromium content in the passive film on a deformed steel surface is usually richer, with a higher Cr/Fe ratio than that formed on annealed steels. A higher chromium content makes surface films more stable, which improves the corrosion resistance. However, severe CD results in the formation of strain-induced martensite phase and deformation twins, which decreases the localized corrosion resistance by increasing the number of active anodic sites on the surface. The corrosion resistance, especially the pitting resistance, in SSs is diminished with increasing volume fraction of the martensite. In this review, we highlighted the failure modes of corrosion of stainless steel implants, factors affecting corrosion, and effect of CD on mechanical properties and emphatically on the corrosion resistance of SSs for biomedical applications.
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Affiliation(s)
- Mohd Talha
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500 Sichuan, P.R. China
- School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500 Sichuan, P.R. China
| | - Yucong Ma
- School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500 Sichuan, P.R. China
| | - Yuanhua Lin
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500 Sichuan, P.R. China
- School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500 Sichuan, P.R. China
| | - Yong Pan
- School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500 Sichuan, P.R. China
| | - Xiangwei Kong
- School of Petroleum Engineering, Yangtze University, Wuhan, 434023 Hubei, P.R. China
| | - O.P. Sinha
- Department of Metallurgical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi-221005, UP, India
| | - C.K. Behera
- Department of Metallurgical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi-221005, UP, India
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27
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Mas-Vinyals A, Gilabert-Porres J, Figueras-Esteve L, Borrós S. Improving linking interface between collagen-based hydrogels and bone-like substrates. Colloids Surf B Biointerfaces 2019; 181:864-871. [PMID: 31382334 DOI: 10.1016/j.colsurfb.2019.06.046] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/19/2019] [Accepted: 06/19/2019] [Indexed: 12/15/2022]
Abstract
Regenerative medicine requires the use of heterogeneous scaffolds when the tissue that needs to be repaired presents a gradient in its properties and cannot be replaced by a homogeneous graft. Then, an intimate contact between the different layers is critical to guarantee the optimal performance of the construct. This work presents a procedure that allows the immobilization of collagen-based hydrogels by self-assembly onto any desired substrate, by means of a pentafluorophenyl methacrylate (PFM) coating obtained by plasma enhanced chemical vapor deposition and a collagen monolayer. The latter is attached onto the PFM-coated substrate thanks to its high reactivity towards amines and it will act as anchoring point for the subsequent collagen fibrillation and hydrogel formation. The interaction between collagen and PFM-coated substrates has been evaluated using the quartz crystal microbalance with dissipation (QCM-D) technique. In addition, QCM-D has been used to design and monitor the collagen fibril formation process. A correlation between QCM-D data and optical microscopy has been established, and fibril formation has been confirmed by atomic force microscopy (AFM).
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Affiliation(s)
- Anna Mas-Vinyals
- Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017, Barcelona, Spain
| | - Joan Gilabert-Porres
- Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017, Barcelona, Spain
| | - Laura Figueras-Esteve
- Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017, Barcelona, Spain
| | - Salvador Borrós
- Grup d'Enginyeria de Materials (GEMAT), Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, 08017, Barcelona, Spain.
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Impergre A, Trunfio-Sfarghiu A, Der-Loughian C, Brizuela L, Mebarek S, Ter-Ovanessian B, Bel-Brunon A, Berthier Y, Normand B. Tribocorrosion of Polyethylene/Cobalt Contact Combined with Real-Time Fluorescence Assays on Living Macrophages: Development of A Multidisciplinary Biotribocorrosion Device. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.biotri.2019.100091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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29
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Ding W, Zhao L, Yan H, Wang X, Liu X, Zhang X, Huang X, Hang R, Wang Y, Yao X, Tang B. Bovine serum albumin assisted synthesis of Ag/Ag2O/ZnO photocatalyst with enhanced photocatalytic activity under visible light. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.02.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Li J, Jiang M, Zhou H, Jin P, Cheung KMC, Chu PK, Yeung KWK. Vanadium Dioxide Nanocoating Induces Tumor Cell Death through Mitochondrial Electron Transport Chain Interruption. GLOBAL CHALLENGES (HOBOKEN, NJ) 2019; 3:1800058. [PMID: 31565366 PMCID: PMC6436600 DOI: 10.1002/gch2.201800058] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 11/17/2018] [Indexed: 05/02/2023]
Abstract
A biomaterials surface enabling the induction of tumor cell death is particularly desirable for implantable biomedical devices that directly contact tumor tissues. However, this specific antitumor feature is rarely found. Consequently, an antitumor-cell nanocoating comprised of vanadium dioxide (VO2) prepared by customized reactive magnetron sputtering has been proposed, and its antitumor-growth capability has been demonstrated using human cholangiocarcinoma cells. The results reveal that the VO2 nanocoating is able to interrupt the mitochondrial electron transport chain and then elevate the intracellular reactive oxygen species levels, leading to the collapse of the mitochondrial membrane potential and the destruction of cell redox homeostasis. Indeed, this chain reaction can effectively trigger oxidative damage in the cholangiocarcinoma cells. Additionally, this study has provided new insights into designing a tumor-cell-inhibited biomaterial surface, which is modulated by the mechanism of mitochondria-targeting tumor cell death.
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Affiliation(s)
- Jinhua Li
- Department of Orthopaedics and TraumatologyLi Ka Shing Faculty of MedicineThe University of Hong KongPokfulamHong Kong999077China
- Department of Physics and Department of Materials Science and EngineeringCity University of Hong KongTat Chee AvenueKowloonHong Kong999077China
- Centre for Translational BoneJoint and Soft Tissue ResearchUniversity Hospital Carl Gustav Carus and Faculty of MedicineTechnische Universität DresdenDresden01307Germany
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic TraumaDepartment of Orthopaedics and TraumatologyThe University of Hong Kong‐Shenzhen HospitalShenzhen518053China
| | - Meng Jiang
- College of Medical ImagingShanghai University of Medicine and Health SciencesShanghai201318China
| | - Huaijuan Zhou
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of SciencesShanghai200050China
| | - Ping Jin
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of SciencesShanghai200050China
| | - Kenneth M. C. Cheung
- Department of Orthopaedics and TraumatologyLi Ka Shing Faculty of MedicineThe University of Hong KongPokfulamHong Kong999077China
| | - Paul K. Chu
- Department of Physics and Department of Materials Science and EngineeringCity University of Hong KongTat Chee AvenueKowloonHong Kong999077China
| | - Kelvin W. K. Yeung
- Department of Orthopaedics and TraumatologyLi Ka Shing Faculty of MedicineThe University of Hong KongPokfulamHong Kong999077China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic TraumaDepartment of Orthopaedics and TraumatologyThe University of Hong Kong‐Shenzhen HospitalShenzhen518053China
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31
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Talha M, Ma Y, Kumar P, Lin Y, Singh A. Role of protein adsorption in the bio corrosion of metallic implants - A review. Colloids Surf B Biointerfaces 2019; 176:494-506. [PMID: 30690385 DOI: 10.1016/j.colsurfb.2019.01.038] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 12/14/2018] [Accepted: 01/19/2019] [Indexed: 11/15/2022]
Abstract
Implants are exposed to a complex physiological environment that contains various organic compounds, especially proteins. The adsorption of proteins has an immense influence on the corrosion, biocompatibility and wear properties of implantable metals. Proteins engage in multiple processes that could potentially inhibit or promote metal degradation, depending on the type of proteins, their concentration and the properties of the implant material. In the bio corrosion process, proteins are denatured and transform into a film on the metal surface, inhibiting corrosion. This film is found on many retrieved artificial joints, especially on worn areas, and can protect the passive film from scrapping due to its lubricating effect, thus decreasing tribocorroion. On the other hand, the interactions of metal ions with proteins (and amino acids) create colloidal organometallic complexes. Transport of the complex compounds away from the interface increases dissolution rates; thus, it accelerates the corrosion of metallic implants. The influence of protein adsorption on the corrosion behaviour of metallic biomaterials is presented in this review. Biocompatible metals that are favourably used as implants such as stainless steel, Co-Cr alloys, Ti alloys and biodegradable Mg and Fe alloys are specifically addressed. We have highlighted the adsorption phenomenon of protein on metallic implants, the interaction of proteins with metallic implants and the role of protein adsorption on implant biocorrosion behaviour as well as their wear resistance.
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Affiliation(s)
- Mohd Talha
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Sichuan, China; School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500, Sichuan, China
| | - Yucong Ma
- School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500, Sichuan, China
| | - Pardeep Kumar
- Department of Physics, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India
| | - Yuanhua Lin
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Sichuan, China; School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500, Sichuan, China.
| | - Ambrish Singh
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Sichuan, China; School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500, Sichuan, China
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32
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Xu W, Yu F, Yang L, Zhang B, Hou B, Li Y. Accelerated corrosion of 316L stainless steel in simulated body fluids in the presence of H2O2 and albumin. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:11-19. [DOI: 10.1016/j.msec.2018.06.023] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 05/06/2018] [Accepted: 06/11/2018] [Indexed: 10/14/2022]
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33
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Wei Z, Edin J, Karlsson AE, Petrovic K, Soroka IL, Odnevall Wallinder I, Hedberg Y. Can gamma irradiation during radiotherapy influence the metal release process for biomedical CoCrMo and 316L alloys? J Biomed Mater Res B Appl Biomater 2018; 106:2673-2680. [PMID: 29424962 PMCID: PMC6175212 DOI: 10.1002/jbm.b.34084] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Revised: 12/19/2017] [Accepted: 01/19/2018] [Indexed: 12/12/2022]
Abstract
The extent of metal release from implant materials that are irradiated during radiotherapy may be influenced by irradiation-formed radicals. The influence of gamma irradiation, with a total dose of relevance for radiotherapy (e.g., for cancer treatments) on the extent of metal release from biomedical stainless steel AISI 316L and a cobalt-chromium alloy (CoCrMo) was investigated in physiological relevant solutions (phosphate buffered saline with and without 10 g/L bovine serum albumin) at pH 7.3. Directly after irradiation, the released amounts of metals were significantly higher for irradiated CoCrMo as compared to nonirradiated CoCrMo, resulting in an increased surface passivation (enhanced passive conditions) that hindered further release. A similar effect was observed for 316L showing lower nickel release after 1 h of initially irradiated samples as compared to nonirradiated samples. However, the effect of irradiation (total dose of 16.5 Gy) on metal release and surface oxide composition and thickness was generally small. Most metals were released initially (within seconds) upon immersion from CoCrMo but not from 316L. Albumin induced an increased amount of released metals from AISI 316L but not from CoCrMo. Albumin was not found to aggregate to any greater extent either upon gamma irradiation or in the presence of trace metal ions, as determined using different light scattering techniques. Further studies should elucidate the effect of repeated friction and fractionated low irradiation doses on the short- and long term metal release process of biomedical materials. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2673-2680, 2018.
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Affiliation(s)
- Zheng Wei
- Division of Surface and Corrosion Science, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of TechnologyStockholmSweden
| | - Jonathan Edin
- Division of Surface and Corrosion Science, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of TechnologyStockholmSweden
- Division of Applied Physical Chemistry, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of TechnologyStockholmSweden
| | - Anna Emelie Karlsson
- Division of Surface and Corrosion Science, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of TechnologyStockholmSweden
- Division of Applied Physical Chemistry, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of TechnologyStockholmSweden
| | - Katarina Petrovic
- Division of Surface and Corrosion Science, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of TechnologyStockholmSweden
- Division of Applied Physical Chemistry, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of TechnologyStockholmSweden
| | - Inna L. Soroka
- Division of Applied Physical Chemistry, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of TechnologyStockholmSweden
| | - Inger Odnevall Wallinder
- Division of Surface and Corrosion Science, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of TechnologyStockholmSweden
| | - Yolanda Hedberg
- Division of Surface and Corrosion Science, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of TechnologyStockholmSweden
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34
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Electrochemical characterization and thermodynamic tendency of β-Lactoglobulin adsorption on 3D printed stainless steel. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.04.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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35
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Hedberg YS, Žnidaršič M, Herting G, Milošev I, Odnevall Wallinder I. Mechanistic insight on the combined effect of albumin and hydrogen peroxide on surface oxide composition and extent of metal release from Ti6Al4V. J Biomed Mater Res B Appl Biomater 2018; 107:858-867. [PMID: 30102828 PMCID: PMC6586049 DOI: 10.1002/jbm.b.34182] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 05/03/2018] [Accepted: 05/28/2018] [Indexed: 11/06/2022]
Abstract
The titanium-aluminium (6 wt%)-vanadium (4 wt%) (Ti6Al4V) alloy is widely used as an orthopedic and dental implant material due to its high corrosion resistance in such environments. The corrosion resistance is usually determined by means of electrochemical methods, which may not be able to detect other chemical surface reactions. Literature findings report a synergistic effect of the combination of the abundant protein albumin and hydrogen peroxide (H2 O2 ) on the extent of metal release and corrosion of Ti6Al4V. The objectives of this study were to gain further mechanistic insight on the interplay of H2 O2 and albumin on the metal release process of Ti6Al4V with special focus on (1) kinetics and (2) H2 O2 and albumin concentrations. This was accomplished mainly by metal release and surface oxide composition investigations, which confirmed the combined effect of H2 O2 and albumin on the metal release process, although not detectable by electrochemical open circuit potential measurements. A concentration of 30 mM H2 O2 induced substantial changes in the surface oxide characteristics, an oxide which became thicker and enriched in aluminum. Bovine serum albumin (BSA) seemed to be able to deplete this aluminum content from the outermost surface or at least to delay its surface enrichment. This effect increased with increased BSA concentration, and for time periods longer than 24 h. This study hence suggests that short-term (accelerated) corrosion resistance measurements are not sufficient to predict potential health effects of Ti6Al4V alloys since also chemical dissolution mechanisms play a large role for metal release, possibly in a synergistic way. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 855-867, 2019.
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Affiliation(s)
- Yolanda S Hedberg
- Department of Chemistry, Division of Surface and Corrosion Science, KTH Royal Institute of Technology, Drottning Kristinas väg 51, SE-10044, Stockholm, Sweden
| | - Monika Žnidaršič
- Department of Chemistry, Division of Surface and Corrosion Science, KTH Royal Institute of Technology, Drottning Kristinas väg 51, SE-10044, Stockholm, Sweden.,Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000, Ljubljana, Slovenia
| | - Gunilla Herting
- Department of Chemistry, Division of Surface and Corrosion Science, KTH Royal Institute of Technology, Drottning Kristinas väg 51, SE-10044, Stockholm, Sweden
| | - Ingrid Milošev
- Department of Physical and Organic Chemistry, Jožef Stefan Institute, Jamova c. 39, SI-1000, Ljubljana, Slovenia
| | - Inger Odnevall Wallinder
- Department of Chemistry, Division of Surface and Corrosion Science, KTH Royal Institute of Technology, Drottning Kristinas väg 51, SE-10044, Stockholm, Sweden
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36
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Phan HTM, Bartz JC, Ayers J, Giasson BI, Schubert M, Rodenhausen KB, Kananizadeh N, Li Y, Bartelt-Hunt SL. Adsorption and decontamination of α-synuclein from medically and environmentally-relevant surfaces. Colloids Surf B Biointerfaces 2018; 166:98-107. [PMID: 29550546 PMCID: PMC5911191 DOI: 10.1016/j.colsurfb.2018.03.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 02/28/2018] [Accepted: 03/08/2018] [Indexed: 11/20/2022]
Abstract
The assembly and accumulation of α-synuclein fibrils are implicated in the development of several neurodegenerative disorders including multiple system atrophy and Parkinson's disease. Pre-existing α-synuclein fibrils can recruit and convert soluble non-fibrillar α-synuclein to the fibrillar form similar to what is observed in prion diseases. This raises concerns regarding attachment of fibrillary α-synuclein to medical instruments and subsequent exposure of patients to α-synuclein similar to what has been observed in iatrogenic transmission of prions. Here, we evaluated adsorption and desorption of α-synuclein to two surfaces: stainless steel and a gold surface coated with a 11-Amino-1-undecanethiol hydrochloride self-assembled-monolayer (SAM) using in-situ combinatorial quartz crystal microbalance with dissipation and spectroscopic ellipsometry. α-Synuclein was found to attach to both surfaces, however, increased α-synuclein adsorption was observed onto the positively charged SAM surface compared to the stainless steel surface. Dynamic light scattering data showed that larger α-synuclein fibrils were preferentially attached to the stainless steel surface when compared with the distributions in the original α-synuclein solution and on the SAM surface. We determined that after attachment, introduction of a 1N NaOH solution could completely remove α-synuclein adsorbed on the stainless steel surface while α-synuclein was retained on the SAM surface. Our results indicate α-synuclein can bind to multiple surface types and that decontamination is surface-dependent.
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Affiliation(s)
- Hanh T M Phan
- Department of Civil Engineering, University of Nebraska-Lincoln, United States; Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, United States
| | - Jason C Bartz
- Department of Medical Microbiology and Immunology, Creighton University, United States
| | - Jacob Ayers
- Department of Neuroscience, University of Florida, United States
| | - Benoit I Giasson
- Department of Neuroscience, University of Florida, United States
| | - Mathias Schubert
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, United States; Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, United States
| | - Keith B Rodenhausen
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, United States; Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, United States; Biolin Scientific, Inc., Paramus, NJ, United States
| | - Negin Kananizadeh
- Department of Civil Engineering, University of Nebraska-Lincoln, United States; Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, United States
| | - Yusong Li
- Department of Civil Engineering, University of Nebraska-Lincoln, United States
| | - Shannon L Bartelt-Hunt
- Department of Civil Engineering, University of Nebraska-Lincoln, United States; Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, United States.
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37
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Wood MH, Payagalage CG, Geue T. Bovine Serum Albumin and Fibrinogen Adsorption at the 316L Stainless Steel/Aqueous Interface. J Phys Chem B 2018; 122:5057-5065. [DOI: 10.1021/acs.jpcb.8b01347] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mary H. Wood
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | | | - Thomas Geue
- Laboratory of Neutron Scattering and Imaging, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
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38
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Time-dependent Enhanced Corrosion of Ti6Al4V in the Presence of H 2O 2 and Albumin. Sci Rep 2018; 8:3185. [PMID: 29453366 PMCID: PMC5816596 DOI: 10.1038/s41598-018-21332-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 02/01/2018] [Indexed: 01/27/2023] Open
Abstract
There is increasing concern regarding the biological consequences of metal release from implants. However, the mechanisms underpinning implant surface degradation, especially in the absence of wear, are often poorly understood. Here the synergistic effect of albumin and H2O2 on corrosion of Ti6Al4V in physiological saline is studied with electrochemical methods. It is found that albumin induces a time-dependent dissolution of Ti6Al4V in the presence of H2O2 in physiology saline. Potentiostatic polarisation measurements show that albumin supresses dissolution in the presence of H2O2 at short times (<24 h) but over longer time periods (120 h) it significantly accelerates corrosion, which is attributed to albumin-catalysed dissolution of the corrosion product layer resulting in formation of a thinner oxide film. Dissolution of Ti6Al4V in the presence of albumin and H2O2 in physiological saline is also found to be dependent on potential: the titanium ion release rate is found to be higher (0.57 µg/cm2) at a lower potential (90 mV), where the oxide capacitance and resistance inferred from Electrochemical Impedance Spectroscopy also suggests a less resistant oxide film. The study highlights the importance of using more realistic solutions, and considering behaviour over longer time periods when testing corrosion resistance of metallic biomaterials.
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39
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Pradhan S, Hedberg J, Rosenqvist J, Jonsson CM, Wold S, Blomberg E, Odnevall Wallinder I. Influence of humic acid and dihydroxy benzoic acid on the agglomeration, adsorption, sedimentation and dissolution of copper, manganese, aluminum and silica nanoparticles - A tentative exposure scenario. PLoS One 2018; 13:e0192553. [PMID: 29420670 PMCID: PMC5805305 DOI: 10.1371/journal.pone.0192553] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 01/25/2018] [Indexed: 11/30/2022] Open
Abstract
This work focuses on kinetic aspects of stability, mobility, and dissolution of bare Cu, Al and Mn, and SiO2 NPs in synthetic freshwater (FW) with and without the presence of natural organic matter (NOM). This includes elucidation of particle and surface interactions, metal dissolution kinetics, and speciation predictions of released metals in solution. Dihydroxy benzoic acid (DHBA) and humic acid adsorbed rapidly on all metal NPs (<1 min) via multiple surface coordinations, followed in general by rapid agglomeration and concomitant sedimentation for a large fraction of the particles. In contrast, NOM did not induce agglomeration of the SiO2 NPs during the test duration (21 days). DHBA in concentrations of 0.1 and 1 mM was unable to stabilize the metal NPs for time periods longer than 6 h, whereas humic acid, at certain concentrations (20 mg/L) was more efficient (>24 h). The presence of NOM increased the amount of released metals into solution, in particular for Al and Cu, whereas the effect for Mn was minor. At least 10% of the particle mass was dissolved within 24 h and remained in solution for the metal NPs in the presence of NOM. Speciation modeling revealed that released Al and Cu predominantly formed complexes with NOM, whereas less complexation was seen for Mn. The results imply that potentially dispersed NPs of Cu, Al and Mn readily dissolve or sediment close to the source in freshwater of low salinity, whereas SiO2 NPs are more stable and therefore more mobile in solution.
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Affiliation(s)
- Sulena Pradhan
- KTH Royal Institute of Technology, Department of Chemistry, Division of Surface and Corrosion Science, Stockholm, Sweden
| | - Jonas Hedberg
- KTH Royal Institute of Technology, Department of Chemistry, Division of Surface and Corrosion Science, Stockholm, Sweden
- * E-mail:
| | - Jörgen Rosenqvist
- University of Gothenburg, Department of Chemistry and Molecular Biology, Gothenburg, Sweden
| | - Caroline M. Jonsson
- University of Gothenburg, Department of Chemistry and Molecular Biology, Gothenburg, Sweden
| | - Susanna Wold
- KTH Royal Institute of Technology, Department of Chemistry, Division of Applied Physical Chemistry, Stockholm, Sweden
| | - Eva Blomberg
- KTH Royal Institute of Technology, Department of Chemistry, Division of Surface and Corrosion Science, Stockholm, Sweden
- RISE Research Institutes of Sweden, Division Bioscience and Materials, Stockholm, Sweden
| | - Inger Odnevall Wallinder
- KTH Royal Institute of Technology, Department of Chemistry, Division of Surface and Corrosion Science, Stockholm, Sweden
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40
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Lombaert N, Mackie C, Verougstraete V, Brouwers T, Van Assche F, Oller A. Use of Bioelution as a Screening Tool for Characterisation of Substances. ACTA ACUST UNITED AC 2018. [DOI: 10.4236/ajac.2018.93012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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41
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Huang Y, Peng G, Chen B, Yong P, Yao N, Yang L, Pirraco RP, Reis RL, Chen J. Preparation and characteristics of the sulfonated chitosan derivatives electrodeposited onto 316l stainless steel surface. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 29:236-256. [DOI: 10.1080/09205063.2017.1409047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ye Huang
- Department of Chemical Engineering and Technology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, P. R. China
| | - Guangjia Peng
- Department of Chemical Engineering and Technology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, P. R. China
| | - Bin Chen
- Department of Chemical Engineering and Technology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, P. R. China
| | - Ping Yong
- Department of Chemical Engineering and Technology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, P. R. China
| | - Nan Yao
- Department of Chemical Engineering and Technology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, P. R. China
| | - Liming Yang
- Department of Chemical Engineering and Technology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, P. R. China
| | - Rogério P. Pirraco
- 3B’s Research Group – Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal
| | - Rui L. Reis
- ICVS/3B’s – PT Government Associate Laboratory, Guimarães, Portugal
| | - Jie Chen
- Department of Chemical Engineering and Technology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, P. R. China
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42
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Johnson I, Jiang W, Liu H. The Effects of Serum Proteins on Magnesium Alloy Degradation in Vitro. Sci Rep 2017; 7:14335. [PMID: 29084971 PMCID: PMC5662685 DOI: 10.1038/s41598-017-14479-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 10/11/2017] [Indexed: 12/22/2022] Open
Abstract
Magnesium (Mg) alloys are promising materials for biodegradable implants, but their clinical translation requires improved control over their degradation rates. Proteins may be a major contributing factor to Mg alloy degradation, but are not yet fully understood. This article reports the effects of fetal bovine serum (FBS), a physiologically relevant mixture of proteins, on Mg and Mg alloy degradation. FBS had little impact on mass loss of pure Mg during immersion degradation, regardless of whether or not a native oxide layer was present on the sample surface. FBS reduced the mass loss of Mg-Yttrium (MgY) alloy with an oxidized surface during immersion degradation, but increased the mass loss for the same alloy with a metallic surface (surface oxides were removed). FBS also influenced the mode of degradation by limiting the depth of pit formation during degradation processes on commercially pure Mg with metallic or oxidized surfaces and on MgY alloy with oxidized surfaces. The results demonstrated that serum proteins had significant interactions with Mg-based biodegradable metals, and these interactions may be modified by alloy composition and processing. Therefore, proteins should be taken into account when designing experiments to assess degradation of Mg-based implants.
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Affiliation(s)
- Ian Johnson
- Department of Bioengineering, University of California at Riverside, Riverside, CA, 92521, USA
| | - Wensen Jiang
- Materials Science and Engineering, University of California at Riverside, Riverside, CA, 92521, USA
| | - Huinan Liu
- Department of Bioengineering, University of California at Riverside, Riverside, CA, 92521, USA.
- Materials Science and Engineering, University of California at Riverside, Riverside, CA, 92521, USA.
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43
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Chang SH, Hsiao YC. Surface and Protein Adsorption Properties of 316L Stainless Steel Modified with Polycaprolactone Film. Polymers (Basel) 2017; 9:polym9100545. [PMID: 30965844 PMCID: PMC6418728 DOI: 10.3390/polym9100545] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 10/16/2017] [Accepted: 10/20/2017] [Indexed: 01/22/2023] Open
Abstract
The surface and protein adsorption properties of 316L stainless steel (316L SS) modified with polycaprolactone (PCL) films are systematically investigated. The wettability of the PCL films was comparable to that of bare 316L SS because the rough surface morphology of the PCL films counteracts their hydrophobicity. Surface modification with PCL film significantly improves the corrosion resistance of the 316L SS because PCL is insulating in nature. A coating of PCL film effectively reduces the amount of adhered bovine serum albumin (BSA) on the surface of 316L SS in a bicinchoninic acid protein assay. PCL is both biodegradable and biocompatible, suggesting the potential for the surface modification of implants used in human bodies; in these applications, excellent corrosion resistance and anticoagulant properties are necessary.
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Affiliation(s)
- Shih-Hang Chang
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 260, Taiwan.
| | - Yuan-Chien Hsiao
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 260, Taiwan.
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Hammood AS, Noor AF, Alkhafagy MT. Evaluation of corrosion behavior in artificial saliva of 2507 and 2205 duplex stainless steel for orthodontic wires before and after heat treatment. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:187. [PMID: 29039619 DOI: 10.1007/s10856-017-5997-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 10/05/2017] [Indexed: 06/07/2023]
Abstract
The present study investigates comparison between corrosion behavior of 2507 and 2205 DSS in artificial saliva for orthodontic wires. The heat treatment is necessary for 2507 and 2205 duplex stainless steel to remove or dissolve intermetallic phases, removed segregation and to relieve any residual thermal stress in DSS which may be formed during production processes. The corrosion behavior of a 2507 and 2205 DSS in artificial saliva was studied by SEM, HV test and potentiodynamic measurements. The results indicate that the corrosion resistance mainly depends on presence of secondary phases (sigma phase) and ferrite /austenite ratio, it's revealed that the corrosion resistance of 2507 DSS higher than 2205 DSS in artificial saliva at 37 °C.
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Affiliation(s)
- Ali Sabea Hammood
- Materials Engineering Department, Faculty of Engineering, University of Kufa, Najaf, Iraq.
| | - Ahmed Faraj Noor
- Materials Engineering Department, Faculty of Engineering, University of Kufa, Najaf, Iraq
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Wilks SJ, Hara SA, Ross EK, Nicolai EN, Pignato PA, Cates AW, Ludwig KA. Non-clinical and Pre-clinical Testing to Demonstrate Safety of the Barostim Neo Electrode for Activation of Carotid Baroreceptors in Chronic Human Implants. Front Neurosci 2017; 11:438. [PMID: 28824361 PMCID: PMC5539240 DOI: 10.3389/fnins.2017.00438] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 07/17/2017] [Indexed: 11/28/2022] Open
Abstract
The Barostim neo™ electrode was developed by CVRx, Inc.to deliver baroreflex activation therapy (BAT)™ to treat hypertension and heart failure. The neo electrode concept was designed to deliver electrical stimulation to the baroreceptors within the carotid sinus bulb, while minimizing invasiveness of the implant procedure. This device is currently CE marked in Europe, and in a Pivotal (akin to Phase III) Trial in the United States. Here we present the in vitro and in vivo safety testing that was completed in order to obtain necessary regulatory approval prior to conducting human studies in Europe, as well as an FDA Investigational Device Exemption (IDE) to conduct a Pivotal Trial in the United States. Stimulated electrodes (10 mA, 500 μs, 100 Hz) were compared to unstimulated electrodes using optical microscopy and several electrochemical techniques over the course of 27 weeks. Electrode dissolution was evaluated by analyzing trace metal content of solutions in which electrodes were stimulated. Lastly, safety testing under Good Laboratory Practice guidelines was conducted in an ovine animal model over a 12 and 24 week time period, with results processed and evaluated by an independent histopathologist. Long-term stimulation testing indicated that the neo electrode with a sputtered iridium oxide coating can be stimulated at maximal levels for the lifetime of the implant without clinically significant dissolution of platinum or iridium, and without increasing the potential at the electrode interface to cause hydrolysis or significant tissue damage. Histological examination of tissue that was adjacent to the neo electrodes indicated no clinically significant signs of increased inflammation and no arterial stenosis as a result of 6 months of continuous stimulation. The work presented here involved rigorous characterization and evaluation testing of the neo electrode, which was used to support its safety for chronic implantation. The testing strategies discussed provide a starting point and proven framework for testing new neuromodulation electrode concepts to support regulatory approval for clinical studies.
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Affiliation(s)
| | - Seth A Hara
- Department of Neurologic Surgery, Mayo ClinicRochester, MN, United States
| | - Erika K Ross
- Department of Neurologic Surgery, Mayo ClinicRochester, MN, United States
| | - Evan N Nicolai
- Department of Neurologic Surgery, Mayo ClinicRochester, MN, United States
| | | | | | - Kip A Ludwig
- Department of Neurologic Surgery, Mayo ClinicRochester, MN, United States
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Höhn S, Braem A, Neirinck B, Virtanen S. Albumin coatings by alternating current electrophoretic deposition for improving corrosion resistance and bioactivity of titanium implants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 73:798-807. [DOI: 10.1016/j.msec.2016.12.129] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 11/16/2016] [Accepted: 12/21/2016] [Indexed: 11/30/2022]
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Bhattacharjee S. DLS and zeta potential - What they are and what they are not? J Control Release 2016; 235:337-351. [PMID: 27297779 DOI: 10.1016/j.jconrel.2016.06.017] [Citation(s) in RCA: 1810] [Impact Index Per Article: 226.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 06/08/2016] [Accepted: 06/09/2016] [Indexed: 02/07/2023]
Abstract
Adequate characterization of NPs (nanoparticles) is of paramount importance to develop well defined nanoformulations of therapeutic relevance. Determination of particle size and surface charge of NPs are indispensable for proper characterization of NPs. DLS (dynamic light scattering) and ZP (zeta potential) measurements have gained popularity as simple, easy and reproducible tools to ascertain particle size and surface charge. Unfortunately, on practical grounds plenty of challenges exist regarding these two techniques including inadequate understanding of the operating principles and dealing with critical issues like sample preparation and interpretation of the data. As both DLS and ZP have emerged from the realms of physical colloid chemistry - it is difficult for researchers engaged in nanomedicine research to master these two techniques. Additionally, there is little literature available in drug delivery research which offers a simple, concise account on these techniques. This review tries to address this issue while providing the fundamental principles of these techniques, summarizing the core mathematical principles and offering practical guidelines on tackling commonly encountered problems while running DLS and ZP measurements. Finally, the review tries to analyze the relevance of these two techniques from translatory perspective.
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Affiliation(s)
- Sourav Bhattacharjee
- School of Veterinary Medicine, University College Dublin (UCD), Belfield, Dublin 4, Ireland.
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Functional β-cyclodextrin coating by electrodeposition on stainless steel for drug loading and release. Chem Res Chin Univ 2016. [DOI: 10.1007/s40242-016-5328-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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49
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Metal release from stainless steel in biological environments: A review. Biointerphases 2016; 11:018901. [DOI: 10.1116/1.4934628] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Dalipi R, Borgese L, Casaroli A, Boniardi M, Fittschen U, Tsuji K, Depero L. Study of metal release from stainless steels in simulated food contact by means of total reflection X-ray fluorescence. J FOOD ENG 2016. [DOI: 10.1016/j.jfoodeng.2015.10.045] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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