19 research outputs found
Outcome of prosthesis exchange for infected knee arthroplasty: the effect of treatment approach: A systematic review of the literature
Background and purpose Two-stage revision remains the gold standard in the treatment of infected knee arthroplasty. Lately, good long-term results of direct exchange arthroplasty have been reported. The purpose of this literature review is to compare the clinical outcome achieved with one-stage revision and two-stage revision with different types of spacers
Source Characterization of Polycyclic Aromatic Hydrocarbons by Using Their Molecular Indices: An Overview of Possibilities
Analysis of the Concentration of Gas-Phase and Solid-Phase Polyaromatic Hydrocarbons in Industrial Emissions from Aluminum Production
Up-regulation of Cartilage Oligomeric Matrix Protein Gene Expression by Insulin-like Growth Factor-I Revealed by Real Time Reverse Transcription-Polymerase Chain Reaction
Outcome of prosthesis exchange for infected knee arthroplasty: the effect of treatment approach
Enhanced Accessibility of Polycyclic Aromatic Hydrocarbons (PAHs) and Heterocyclic PAHs in Industrially Contaminated Soil after Passive Dosing of a Competitive Sorbate
To
assess the exposure to polycyclic aromatic hydrocarbons (PAHs) it
is important to understand the binding mechanisms between specific
soil constituents and the organic pollutant. In this study, sorptive
bioaccessibility extraction (SBE) was applied to quantify the accessible
PAH fraction in industrially contaminated soil with and without passive
dosing of a competitive sorbate. SBE experiments revealed an accessible
PAH fraction of 41 ± 1% (∑16 US EPA PAHs + 5 further PAHs).
The passive dosing of toluene below its saturation level revealed
competitive binding and resulted in an average increase of the accessible
fraction to 49 ± 2%, whereby primarily the accessibility of higher
molecular weight PAHs (log <i>K</i><sub>ow</sub> > 6)
was affected. Competitive binding was verified using the same soil
with only desorption-resistant PAHs present. In this experiment, passive
dosing of toluene resulted in desorption of 13 ± 0.4% PAH. We
explain increased PAH desorption after addition of toluene by competitive
adsorption to high-affinity sorption sites while acknowledging that
toluene could additionally have increased PAH mobility within the
soil matrix. Findings suggest that the presence of copollutants at
contaminated sites deserves specific considerations as these may increase
accessibility and thereby exposure and mobility of PAHs