Abstract:
:Zinc (Zn) alloys have been considered as promising absorbable metals, mainly due to their moderate degradation rates ranging between magnesium alloys and iron alloys. The degradation behavior depends on the specific physiological environment. Released metallic ions and corrosion products directly influence biocompatibility. The initial contact of orthopedic implants or vascular stents after implantation will be with blood. In this study, fetal bovine serum (FBS) was used as a model system of blood components. We investigated the influence of FBS on in vitro degradation behavior and cytotoxicity of pure Zn, and Zn-4Ag and Zn-2Ag-1.8Au-0.2 V (wt%) alloys. The initial degradation rates in FBS were assessed and compared with the degradation and toxicity in four other common physiological model systems: DMEM cell culture medium ± FBS and McCoy's 5A medium ± FBS. Test samples in pure FBS showed the highest initial degradation rates, and accordingly, FBS supplemented media accelerated the degradation process as well. Moreover, an extract test according to ISO 10993-5 and -12 with L929 and Saos-2 cells was performed to investigate the role of FBS in the extraction medium. The cytotoxic effects observed in the tests were correlated with FBS-mediated Zn2+ release. These findings have significant implications regarding the selection of appropriate media for in vitro degradation and cytotoxicity evaluation of Zn and its alloys. STATEMENT OF SIGNIFICANCE: Metallic zinc and its alloys have been considered as promising biodegradable metals, mainly due to their moderate degradation rates. However, in vitro cytotoxicity tests according to the current ISO 10993 standard series are not suitable to predict biocompatibility of Zn alloys due to the inconsistent correlation between in vitro and in vitro biocompatibility. In this study, we show that the outcomes of standardized in vitro cytotoxicity tests of Zn and Zn alloys are influenced by fetal bovine serum in the extraction vehicle because FBS promotes Zn2+ release during the extraction process. The results of the study provide significant information for selection of appropriate model systems to evaluate in vitro degradation behavior and cytotoxicity.
journal_name
Acta Biomaterjournal_title
Acta biomaterialiaauthors
Li P,Schille C,Schweizer E,Kimmerle-Müller E,Rupp F,Heiss A,Legner C,Klotz UE,Geis-Gerstorfer J,Scheideler Ldoi
10.1016/j.actbio.2019.03.013subject
Has Abstractpub_date
2019-10-15 00:00:00pages
235-245eissn
1742-7061issn
1878-7568pii
S1742-7061(19)30179-5journal_volume
98pub_type
杂志文章abstract::Recent advances in biomaterials integrate metal nanoparticles with hydrogels to generate composite materials that exhibit new or improved properties. By precisely controlling the composition, arrangement and interactions of their constituents, these hybrid materials facilitate biomedical applications through myriad ap...
journal_title:Acta biomaterialia
pub_type: 杂志文章,评审
doi:10.1016/j.actbio.2020.12.030
更新日期:2020-12-19 00:00:00
abstract::Corneal disease is a major cause of blindness and keratoplasty is an effective treatment method. However, clinical treatment is limited due to a severe shortage of high-quality allogeneic corneal tissues and the bacterial infection after corneal transplantation. In this study, we develop a novel artificial and antibac...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2013.08.033
更新日期:2014-01-01 00:00:00
abstract::Cellular transplantation is now closer to becoming a practical clinical strategy to repair, regenerate or restore the function of skin, muscle, nerves and pancreatic islets. In this study we sought to develop a simple injectable collagen matrix that would preserve the normal cellular organization of skin cells. Three ...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2011.04.024
更新日期:2011-08-01 00:00:00
abstract::Gd3+-based contrast agents have been extensively used for signal enhancement of T1-weighted magnetic resonance imaging (MRI) due to the large magnetic moment and long electron spin relaxation time of the paramagnetic Gd3+ ion. The key requisites for the development of Gd3+-based contrast agents are their relaxivities ...
journal_title:Acta biomaterialia
pub_type: 杂志文章,评审
doi:10.1016/j.actbio.2020.03.047
更新日期:2020-07-01 00:00:00
abstract::Small intestine submucosa (SIS) has emerged as one of a number of naturally derived extracellular matrix (ECM) biomaterials currently in clinical use. In addition to clinical applications, ECM materials form the basis for a variety of approaches within tissue engineering research. In our preliminary work it was found ...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2014.08.024
更新日期:2014-12-01 00:00:00
abstract::The mechanical properties of the extracellular microenvironment regulate cell behavior, including migration, proliferation and morphogenesis. Although the elastic moduli of synthetic materials have been studied, little is known about the properties of naturally produced extracellular matrix. Here we have utilized atom...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2010.07.021
更新日期:2011-01-01 00:00:00
abstract:UNLABELLED:We show with laboratory experiments that self-assembled mineral tube formation involving precipitation around a templating jet of fluid - a mechanism well-known in the physical sciences from the tubular growth of so-called chemical gardens - functions with carbonates, and we analyse the microstructures and c...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2016.07.005
更新日期:2016-10-01 00:00:00
abstract::Biodegradability is a crucial characteristic to improve the clinical potential of sol-gel-derived glass materials. To this end, a set of degradable organic/inorganic class II hybrids from a tetraethoxysilane(TEOS)-derived silica sol and oligovalent cross-linker oligomers containing oligo(d,l-lactide) domains was devel...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2017.09.024
更新日期:2017-11-01 00:00:00
abstract::Bone loss around tooth extraction sites can occur, thus making future placement of dental implants difficult. Alveolar bone regeneration can be guided by the application of a nanofibrous bone graft coupled with osteoinductive proteins/peptides, following tooth loss or tooth extraction. In the present study, we demonst...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2018.12.051
更新日期:2019-02-01 00:00:00
abstract::In this research, the flexural performance of hedgehog spines is investigated in four ways. First, X-ray micro-computed tomography (μCT) is employed to analyze the complex internal architecture of hedgehog spines. μCT images reveal distinct structural morphology, characterized by longitudinal stringers and transverse ...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2019.04.036
更新日期:2019-08-01 00:00:00
abstract::The surface topography and local elastic moduli of endothelial cells exposed to shear stress were measured using atomic force microscopy. Bovine aortic endothelial cells were exposed to shear stress of 2Pa for 6, 12 or 24h. In addition, a confocal laser-scanning microscope used in conjunction with the atomic force mic...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2006.07.009
更新日期:2007-05-01 00:00:00
abstract::Bioactive materials play an important role in facilitating dental pulp repair when living dental pulp is exposed after injuries. Mineral trioxide aggregate is the currently recommended material of choice for pulp repair procedures though has several disadvantages, especially the inconvenience of handling. Little infor...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2014.08.014
更新日期:2014-12-01 00:00:00
abstract::Multifunctional bioactive materials with the ability to stimulate osteogenesis and angiogenesis of stem cells play an important role in the regeneration of bone defects. However, how to develop such biomaterials remains a significant challenge. In this study, we prepared mesoporous silica nanospheres (MSNs) with unifo...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2015.04.019
更新日期:2015-07-01 00:00:00
abstract::Throughout the process of aging, dynamic changes of bone material, micro- and macro-architecture result in a loss of strength and therefore in an increased likelihood of fragility fractures. To date, precise contributions of age-related changes in bone (re)modeling and (de)mineralization dynamics to this fragility inc...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2020.02.007
更新日期:2020-04-01 00:00:00
abstract::A biphasic layer with a Zn-containing beta-tricalcium phosphate (ZnTCP) phase and a fluoridated hydroxyapatite (FHA) phase on titanium alloy substrate was prepared by the sol-gel technique. Scanning electron microscopy and energy-dispersive X-ray analysis results showed the ZnTCP/FHA layer to have a heterogeneous surf...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2007.08.013
更新日期:2008-03-01 00:00:00
abstract::Surface coatings delivering BMP are a promising approach to render biomaterials osteoinductive. In contrast to soluble BMPs which can interact with their receptors at the dorsal side of the cell, BMPs presented as an insoluble cue physically bound to a biomimetic matrix, called here matrix-bound (bBMP-2), are presente...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2016.09.014
更新日期:2016-12-01 00:00:00
abstract::Controlling the release of recombinant adeno-associated virus (rAAV) vectors from biocompatible materials is a novel, attractive approach to increase the residence time and effectiveness of a gene carrier at a defined target site. Self-assembling peptides have an ability to form stable hydrogels and encapsulate cells ...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2015.02.013
更新日期:2015-05-01 00:00:00
abstract::α-Galactosylceramide (GalCer) is a glycolipid widely known as an activator of Natural killer T (NKT) cells, constituting a promising adjuvant against cancer, including melanoma. However, limited clinical outcomes have been obtained so far. This study evaluated the synergy between GalCer and major histocompatibility co...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2018.06.029
更新日期:2018-08-01 00:00:00
abstract::Cell transplantation therapies to treat diseases related to dysfunction of retinal ganglion cells (RGCs) are limited in part by an inability to navigate to the optic nerve head within the retina. During development, RGCs are guided by a series of neurotrophic factors and guidance cues; however, these factors and their...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2014.08.032
更新日期:2014-12-01 00:00:00
abstract::Viscoelasticity is a fundamental property of virtually all biological materials, and proteinaceous, fibrous materials that constitute the extracellular matrix (ECM) are no exception. Viscoelasticity may be particularly important in the ECM since cells can apply mechanical stress resulting from cell contractility over ...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2019.02.022
更新日期:2019-04-01 00:00:00
abstract::A new series of beta Ti-Nb-Zr (TNZ) alloys with considerable plastic deformation ability during compression test, high elastic admissible strain, and excellent cytocompatibility have been developed for removable bone tissue implant applications. TNZ alloys with nominal compositions of Ti-34Nb-25Zr, Ti-30Nb-32Zr, Ti-28...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2015.03.023
更新日期:2015-07-01 00:00:00
abstract::During the past two decades, research on ceramic scaffolds for bone regeneration has progressed rapidly; however, currently available porous scaffolds remain unsuitable for load-bearing applications. The key to success is to apply microstructural design strategies to develop ceramic scaffolds with mechanical propertie...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2013.02.039
更新日期:2013-06-01 00:00:00
abstract::Biphasic calcium phosphates (BCPs) are bioceramics composed of hydroxyapatite (HAp, Ca10(PO4)6(OH)2) and beta-Tricalcium Phosphate (β-TCP, Ca3(PO4)2). Because their chemical and mineral composition closely resembles that of the mineral component of bone, they are potentially interesting candidates for bone repair surg...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2016.12.011
更新日期:2017-03-01 00:00:00
abstract::Breast cancer has become the second leading cause of cancer-related mortality in female wherein more than 90% of breast cancer-related death results from cancer metastasis to distant organs at advanced stage. The purpose of this study is to develop biodegradable nanoparticles composed of natural polypeptides and calci...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2017.06.008
更新日期:2017-08-01 00:00:00
abstract::Immersion of electrospun polycaprolactone (PCL) nanofiber mats in calcium phosphate solutions similar to simulated body fluid resulted in deposition of biomimetic calcium phosphate layer on the nanofibers and thus a highly bioactive novel scaffold has been developed for bone tissue engineering. Coatings with adequate ...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2009.04.037
更新日期:2009-10-01 00:00:00
abstract::Osteoarthritis (OA), is a common musculoskeletal disorder that will progressively increase in older populations and is expected to be the most dominant cause of disability in the world population by 2030. The progression of OA is controlled by a multi-factorial pathway that has not been completely elucidated and under...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2021.01.003
更新日期:2021-01-12 00:00:00
abstract::In order to improve the osseointegration and long-term survival of dental implants, it is urgent to develop a multifunctional titanium surface which would simultaneously have osteogeneic, angiogeneic and antibacterial properties. In this study, a potential dental implant material-dual Zn/Mg ion co-implanted titanium (...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2016.11.067
更新日期:2017-02-01 00:00:00
abstract::Molecular imprinting is a new and rapidly evolving technique used to create synthetic receptors and it possesses great potential in a number of applications in the life sciences. Keeping in mind the therapeutic importance of 5-fluorouracil (5-FU) and the technological significance of molecular imprinting polymers, the...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2008.03.017
更新日期:2008-09-01 00:00:00
abstract::The management of diabetic wounds remains a major therapeutic challenge in clinics. Herein, we report a personalized treatment using 3D scaffolds consisting of radially or vertically aligned nanofibers in combination with bone marrow mesenchymal stem cells (BMSCs). The 3D scaffolds have customizable sizes, depths, and...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2020.03.035
更新日期:2020-05-01 00:00:00
abstract::Two enzymes, thrombin and transglutaminase, both participate in the formation of fibrin networks and contribute to the mechanical strength of biogels. A theoretical model built from the available kinetic data showed that a competition may take place between the two enzymes for their common substrate, fibrinogen. To ev...
journal_title:Acta biomaterialia
pub_type: 杂志文章
doi:10.1016/j.actbio.2009.08.001
更新日期:2010-02-01 00:00:00