Chromium oxide coatings with the potential for eliminating the risk of chromium ion release in orthopaedic implants.

Abstract:

:Chromium oxide coatings prepared by radiofrequency reactive magnetron sputtering on stainless steel substrates were exposed to Ringer's physiological solution and tested for their electrochemical corrosion stability using an open circuit potential measurement, potentiodynamic polarization, electrochemical impedance spectroscopy and Mott-Schottky analysis. The coatings were found to be predominantly Cr2O3, based on the observation of the dominance of [Formula: see text] and Eg symmetric modes in our Raman spectroscopic investigation and the Eu vibrational modes in our Fourier transform infrared spectroscopic measurements on the coatings. We investigated for the presence of chromium ions in Ringer's solution after all of the above electrochemical tests using atomic absorption spectroscopy, without finding a trace of chromium ions at the ppm level for coatings tested under open circuit and at the lower potentials implants are likely to experience in the human body. The coatings were further exposed to Ringer's solution for one month and tested for adhesion strength changes, and we found that they retained substantial adhesion to the substrates. We expect this finding to be significant for future orthopaedic implants where chromium ion release is still a major challenge.

journal_name

R Soc Open Sci

authors

Oje AM,Ogwu AA

doi

10.1098/rsos.170218

subject

Has Abstract

pub_date

2017-07-05 00:00:00

pages

170218

issue

7

issn

2054-5703

pii

rsos170218

journal_volume

4

pub_type

杂志文章
  • Dinosaur diversification rates were not in decline prior to the K-Pg boundary.

    abstract::Determining the tempo and mode of non-avian dinosaur extinction is one of the most contentious issues in palaeobiology. Extensive disagreements remain over whether their extinction was catastrophic and geologically instantaneous or the culmination of long-term evolutionary trends. These conflicts have arisen due to nu...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.201195

    authors: Bonsor JA,Barrett PM,Raven TJ,Cooper N

    更新日期:2020-11-18 00:00:00

  • Common noctules exploit low levels of the aerosphere.

    abstract::Aerial habitats present a challenge to find food across a large potential search volume, particularly for insectivorous bats that rely on echolocation calls with limited detection range and may forage at heights over 1000 m. To understand how bats use vertical space, we tracked one to five foraging flights of eight co...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.181942

    authors: O'Mara MT,Wikelski M,Kranstauber B,Dechmann DKN

    更新日期:2019-02-27 00:00:00

  • Dynamics and biases of online attention: the case of aircraft crashes.

    abstract::The Internet not only has changed the dynamics of our collective attention but also through the transactional log of online activities, provides us with the opportunity to study attention dynamics at scale. In this paper, we particularly study attention to aircraft incidents and accidents using Wikipedia transactional...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.160460

    authors: García-Gavilanes R,Tsvetkova M,Yasseri T

    更新日期:2016-10-12 00:00:00

  • Memory for stimulus sequences: a divide between humans and other animals?

    abstract::Humans stand out among animals for their unique capacities in domains such as language, culture and imitation, yet it has been difficult to identify cognitive elements that are specifically human. Most research has focused on how information is processed after it is acquired, e.g. in problem solving or 'insight' tasks...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.161011

    authors: Ghirlanda S,Lind J,Enquist M

    更新日期:2017-06-21 00:00:00

  • Correction to 'Unexpected diversity within the extinct elephant birds (Aves: Aepyornithidae) and a new identity for the world's largest bird'.

    abstract::[This corrects the article DOI: 10.1098/rsos.181295.]. ...

    journal_title:Royal Society open science

    pub_type: 已发布勘误

    doi:10.1098/rsos.201358

    authors: Hansford JP,Turvey ST

    更新日期:2020-09-16 00:00:00

  • Nanostructured mesoporous silica: influence of the preparation conditions on the physical-surface properties for efficient organic dye uptake.

    abstract::A series of ordered mesoporous silica such as MCM-41, SBA-3 and SBA-15, in addition to silica micro- (SM) and nano- (SN) mesoporous particles, were prepared. The preparation conditions were found to greatly influence the physical-surface properties including morphological structure, porosity, particle size, aggregate ...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.172021

    authors: Morsi RE,Mohamed RS

    更新日期:2018-03-14 00:00:00

  • Enhancing endorsement of scientific inquiry increases support for pro-environment policies.

    abstract::Pro-environment policies require public support and engagement, but in countries such as the USA, public support for pro-environment policies remains low. Increasing public scientific literacy is unlikely to solve this, because increased scientific literacy does not guarantee increased acceptance of critical environme...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.160360

    authors: Drummond A,Palmer MA,Sauer JD

    更新日期:2016-09-28 00:00:00

  • Spreading of components of mood in adolescent social networks.

    abstract::Recent research has provided evidence that mood can spread over social networks via social contagion, but that, in seeming contradiction to this, depression does not. Here, we investigate whether there is evidence for the individual components of mood (such as appetite, tiredness and sleep) spreading through US adoles...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.170336

    authors: Eyre RW,House T,Hill EM,Griffiths FE

    更新日期:2017-09-20 00:00:00

  • The importance of forest structure to biodiversity-productivity relationships.

    abstract::While various relationships between productivity and biodiversity are found in forests, the processes underlying these relationships remain unclear and theory struggles to coherently explain them. In this work, we analyse diversity-productivity relationships through an examination of forest structure (described by bas...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.160521

    authors: Bohn FJ,Huth A

    更新日期:2017-01-04 00:00:00

  • The taming of the neural crest: a developmental perspective on the origins of morphological covariation in domesticated mammals.

    abstract::Studies on domestication are blooming, but the developmental bases for the generation of domestication traits and breed diversity remain largely unexplored. Some phenotypic patterns of human neurocristopathies are suggestive of those reported for domesticated mammals and disrupting neural crest developmental programme...

    journal_title:Royal Society open science

    pub_type: 杂志文章,评审

    doi:10.1098/rsos.160107

    authors: Sánchez-Villagra MR,Geiger M,Schneider RA

    更新日期:2016-06-01 00:00:00

  • Super-spreading events initiated the exponential growth phase of COVID-19 with ℛ0 higher than initially estimated.

    abstract::The basic reproduction number R 0 of the coronavirus disease 2019 h...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.200786

    authors: Kochańczyk M,Grabowski F,Lipniacki T

    更新日期:2020-09-23 00:00:00

  • Attack risk for butterflies changes with eyespot number and size.

    abstract::Butterfly eyespots are known to function in predator deflection and predator intimidation, but it is still unclear what factors cause eyespots to serve one function over the other. Both functions have been demonstrated in different species that varied in eyespot size, eyespot number and wing size, leaving the contribu...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.150614

    authors: Ho S,Schachat SR,Piel WH,Monteiro A

    更新日期:2016-01-20 00:00:00

  • Correction to: 'Behavioural thermoregulation via microhabitat selection of winter sleeping areas in an endangered primate: implications for habitat conservation'.

    abstract::[This corrects the article DOI: 10.1098/rsos.181113.]. ...

    journal_title:Royal Society open science

    pub_type: 杂志文章,已发布勘误

    doi:10.1098/rsos.190045

    authors: Campbell LAD,Tkaczynski PJ,Mouna M,Derrou A,Oukannou L,Majolo B,van Lavieren E

    更新日期:2019-01-30 00:00:00

  • Towards an integrated food safety surveillance system: a simulation study to explore the potential of combining genomic and epidemiological metadata.

    abstract::Foodborne infection is a result of exposure to complex, dynamic food systems. The efficiency of foodborne infection is driven by ongoing shifts in genetic machinery. Next-generation sequencing technologies can provide high-fidelity data about the genetics of a pathogen. However, food safety surveillance systems do not...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.160721

    authors: Hill AA,Crotta M,Wall B,Good L,O'Brien SJ,Guitian J

    更新日期:2017-03-29 00:00:00

  • Roads to pentazolate anion: a theoretical insight.

    abstract::The formation mechanism of pentazolate anion (PZA) is not yet clear. In order to present the possible formation pathways of PZA, the potential energy surfaces of phenylpentazole (PPZ), phenylpentazole radical (PPZ-R), phenylpentazole radical anion (PPZ-RA), PPZ and m-chloroperbenzoic acid (m-CPBA), p-pentazolylphenola...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.172269

    authors: Yu T,Ma YD,Lai WP,Liu YZ,Ge ZX,Ren G

    更新日期:2018-05-23 00:00:00

  • Climbing adaptations, locomotory disparity and ecological convergence in ancient stem 'kangaroos'.

    abstract::Living kangaroos, wallabies and rat-kangaroos (Macropodoidea) constitute the most ecologically diverse radiation of Australasian marsupials. Indeed, even their hallmark bipedal hopping gait has been variously modified for bounding, walking and climbing. However, the origins of this locomotory adaptability are uncertai...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.181617

    authors: Den Boer W,Campione NE,Kear BP

    更新日期:2019-02-06 00:00:00

  • Hunter selection for larger and older male bobcats affects annual harvest demography.

    abstract::Wildlife researchers often rely on demographic data collected from harvested animals to estimate population dynamics. But demographic data from harvested animals may be non-representative if hunters/trappers have the ability and motivation to preferentially select for certain physical traits. Hunter preference is well...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.180668

    authors: Allen ML,Roberts NM,Van Deelen TR

    更新日期:2018-10-10 00:00:00

  • Sex-specific association patterns in bonobos and chimpanzees reflect species differences in cooperation.

    abstract::In several group-living species, individuals' social preferences are thought to be influenced by cooperation. For some societies with fission-fusion dynamics, sex-specific association patterns reflect sex differences in cooperation in within- and between-group contexts. In our study, we investigated this hypothesis fu...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.161081

    authors: Surbeck M,Girard-Buttoz C,Boesch C,Crockford C,Fruth B,Hohmann G,Langergraber KE,Zuberbühler K,Wittig RM,Mundry R

    更新日期:2017-05-03 00:00:00

  • Characterizing the shape patterns of dimorphic yeast pseudohyphae.

    abstract::Pseudohyphal growth of the dimorphic yeast Saccharomyces cerevisiae is analysed using two-dimensional top-down binary images. The colony morphology is characterized using clustered shape primitives (CSPs), which are learned automatically from the data and thus do not require a list of predefined features or a priori k...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.180820

    authors: Gontar A,Bottema MJ,Binder BJ,Tronnolone H

    更新日期:2018-10-17 00:00:00

  • A green extraction design for enhancing flavonoid compounds from Ixora javanica flowers using a deep eutectic solvent.

    abstract::In this study, an environmentally friendly extraction method for flavonoid compound from Ixora javanica, as a new raw material candidate for herbal medicine and cosmetics, was developed. The objectives of the present work were to provide recommendations for the optimal extraction conditions and to investigate the effe...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.201116

    authors: Oktaviyanti ND,Kartini K,Hadiyat MA,Rachmawati E,Wijaya AC,Hayun H,Mun'im A

    更新日期:2020-10-07 00:00:00

  • Reasonable coal pillar design and remote control mining technology for highwall residual coal resources.

    abstract::Highwall mining (HWM) technology is an efficient method for exploiting residual coal resources in Chinese open-pit coal mines. However, on-site personnel and equipment can be damaged by the instability of the highwall mining residual coal pillars and subsidence of final end-walls. This paper considers the geological c...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.181817

    authors: Wang F,Zhang C

    更新日期:2019-04-03 00:00:00

  • Spatial correlated games.

    abstract::This article studies correlated two-person games constructed from games with independent players as proposed in Iqbal et al. (2016 R. Soc. open sci.3, 150477. (doi:10.1098/rsos.150477)). The games are played in a collective manner, both in a two-dimensional lattice where the players interact with their neighbours, and...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.171361

    authors: Alonso-Sanz R

    更新日期:2017-11-15 00:00:00

  • In situ investigations of the phase change behaviour of tungsten oxide nanostructures.

    abstract::This study uses two in situ techniques to investigate the geometry and phase change behaviour of bundled ultrathin W18O49 nanowires and WO3 nanoparticles. The in situ X-ray diffraction (XRD) results have shown that the phase transition of WO3 nanoparticles occurs in sequence from monoclinic (room temperature) → orthor...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.171932

    authors: Thummavichai K,Wang N,Xu F,Rance G,Xia Y,Zhu Y

    更新日期:2018-04-25 00:00:00

  • Simultaneous estimation of seasonal population density, habitat preference and catchability of wild boars based on camera data and harvest records.

    abstract::Analyses of life history and population dynamics are essential for effective population control of wild mammals. We developed a model for the simultaneous estimation of seasonal changes in three parameters-population density, habitat preference and trap catchability of target animals-based on camera-trapping data and ...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.200579

    authors: Yokoyama Y,Nakashima Y,Yajima G,Miyashita T

    更新日期:2020-08-19 00:00:00

  • How successful are mutants in multiplayer games with fluctuating environments? Sojourn times, fixation and optimal switching.

    abstract::Using a stochastic model, we investigate the probability of fixation, and the average time taken to achieve fixation, of a mutant in a population of wild-types. We do this in a context where the environment in which the competition takes place is subject to stochastic change. Our model takes into account interactions ...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.172176

    authors: Baron JW,Galla T

    更新日期:2018-03-21 00:00:00

  • Manta birostris, predator of the deep? Insight into the diet of the giant manta ray through stable isotope analysis.

    abstract::The characterization of diet for the giant manta ray Manta birostris has been problematic given their large-scale movement patterns and the difficulty in obtaining stomach contents from this species. The large majority of existing information is based on observational data limited to feeding events at the sea surface ...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.160717

    authors: Burgess KB,Couturier LI,Marshall AD,Richardson AJ,Weeks SJ,Bennett MB

    更新日期:2016-11-30 00:00:00

  • C,N-codoped MoSi2 ceramic with excellent heat resistance for microwaves absorption application.

    abstract::Microwave absorption (MA) materials with high heat resistance have a wide range of applications in many fields. In this work, a C,N-codoped MoSi2 ceramic was prepared via a facile solid-phase reaction method and its MA properties was investigated. On the one hand, the results indicate that this ceramic possesses excel...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.200740

    authors: Yang Z,Xu C,Xia Y,Xiong Z

    更新日期:2020-07-29 00:00:00

  • Biophysical basis for convergent evolution of two veil-forming microbes.

    abstract::Microbes living in stagnant water typically rely on chemical diffusion to draw nutrients from their environment. The sulfur-oxidizing bacterium Thiovulum majus and the ciliate Uronemella have independently evolved the ability to form a 'veil', a centimetre-scale mucous sheet on which cells organize to produce a macros...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.150437

    authors: Petroff AP,Pasulka AL,Soplop N,Wu XL,Libchaber A

    更新日期:2015-11-11 00:00:00

  • Limiting stochastic processes of shift-periodic dynamical systems.

    abstract::A shift-periodic map is a one-dimensional map from the real line to itself which is periodic up to a linear translation and allowed to have singularities. It is shown that iterative sequences xn+1 = F(x n ) generated by such maps display rich dynamical behaviour. The intege...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.191423

    authors: Stadlmann J,Erban R

    更新日期:2019-11-27 00:00:00

  • Numerical techniques for design calculations of longitudinal bending in buried steel pipes subjected to lateral Earth movements.

    abstract::This paper presents simplified finite-element analysis procedures based on geometrical nonlinearity and ductile Mohr-Coulomb-Davis plasticity for analysis of bending behaviour of steel pipes subjected to lateral soil loading. A simple, and easy to implement, user-defined subroutine to represent soil stiffness using th...

    journal_title:Royal Society open science

    pub_type: 杂志文章

    doi:10.1098/rsos.181550

    authors: Almahakeri M,Moore ID,Fam A

    更新日期:2019-07-10 00:00:00