Time-resolved laser fluorescence spectroscopy of organic ligands by europium: Fluorescence quenching and lifetime properties.

Time-resolved Laser Fluorescence Spectroscopy (TRLFS) has proved its usefulness in the fields of biophysics, life science and geochemistry to characterize the fluorescence probe molecule with its chemical environment. The purpose of this study is to demonstrate the applicability of this powerful technique combined with Steady-State (S-S) measurements. A multi-mode factor analysis, in particular CP/PARAFAC, was used to analyze the interaction between Europium (Eu) and Humic substances (HSs) extracted from Saint Lawrence Estuary in Canada.

Evaluating the critical strain energy release rate of bioactive glass coatings on Ti6Al4V substrates after degradation.

It has been reported that the adhesion of bioactive glass coatings to Ti6Al4V reduces after degradation, however, this effect has not been quantified. This paper uses bilayer double cantilever (DCB) specimens to determine G and G, the critical mode I and mode II strain energy release rates, respectively, of bioactive coating/Ti6Al4V substrate systems degraded to different extents. Three borate-based bioactive glass coatings with increasing amounts of incorporated SrO (0, 15 and 25mol%) were enamelled onto Ti6Al4V substrates and then immersed in de-ionized water for 2, 6 and 24h.

Total nasal skeletal reconstruction disfigured by granulomatosis with polyangitis (wegener granulomatosis).

Background: Nasal deformity is a common disorder in Wegener granulomatosis, which is produced by polyangitis of medium-sized vessels. This process may cause necrosis and destruction of the nasal mucosa and osteocartilaginous framework. At this time, there is a lack of published data on nasal deformities associated with Wegener granulomatosis.

Comparison of outcomes using diced cartilage with or without tensor fascia latae wrapping in rabbits.

Background: Diced cartilage has been associated with several advantages and rewarding results, leading to its widespread application in various forms in rhinoplasty, but the outcomes of diced cartilage with and without tensor fascia latae wrapping have not been widely reported in evidence-based articles.

Objectives: The authors compared changes in weight, size, and histology of both bare and fascia-wrapped diced cartilage in rabbits as a model for human surgical outcomes.

Methods: One auricle from each of 15 rabbits was divided into 2 pieces, and both samples were diced.

Straight septum, crooked nose: an overlooked concept.

Introduction: Asymmetric facial skeletal growth is a common finding in the rhinoplasty patient population. This common abnormality affects all facial components, including the upper lateral cartilages (ULCs). The asymmetric growth also may produce uneven thickness, consistency, curvature, and elastic recoil of the ULC.