23 research outputs found
The benefits of strength training on musculoskeletal system health: practical applications for interdisciplinary care
Global health organizations have provided recommendations regarding exercise for the general population. Strength training has been included in several position statements due to its multi-systemic benefits. In this narrative review, we examine the available literature, first explaining how specific mechanical loading is converted into positive cellular responses. Secondly, benefits related to specific musculoskeletal tissues are discussed, with practical applications and training programmes clearly outlined for both common musculoskeletal disorders and primary prevention strategies
Interaction of Tricationic Corroles with Single/Double Helix of Homopolymeric Nucleic Acids and DNA
In this manuscript a multitechnique approach is proposed to characterize the interaction between new tri-N-methylpyridyl corrole (TMPC) and its germanium(IV) derivative (GeTMPC), with single- and double-stranded nucleic acid homopolymers and calf thymus DNA The specificity of each spectroscopic technique has been exploited to analyze the different aspects of corrole binding. Noteworthy, this approach allows us to distinguish between H aggregation of TMPC in the presence of polyriboadenilic acid (poly(rA)) and J aggregates in the presence of polyribocytidinic acid (poly(rC)) as well as to identify the formation of GeTMPC dimers in the presence of single-stranded poly(rA) and pseudointercalation with single-stranded poly(rC)
A novel MOCVD strategy for the fabrication of cathode in a solid oxide fuel cell Synthesis of La(0 8)Sr(0 2)MnO(3) films on YSZ electrolyte pellets
Porous La0.8Sr0.2MnO3 (LSMO) films have been prepared by metal organic chemical vapor deposition (MOCVD) technique for solid oxide fuel cell (SOFC) applications. LSMO samples have been deposited on yttria-stabilized zirconia (YSZ) electrolyte pellets. The adopted in situ strategy involves a molten mixture consisting of the La(hfa)3 \ub7diglyme, Sr(hfa)2 \ub7tetraglyme, and Mn(tmhd)3 [Hhfa = 1,1,1,5,5,5-hexafluoro-2,4-pentanedione; diglyme = bis(2-methoxyethyl) ether; tetraglyme = 2,5,8,11,14-pentaoxapentadecane; Htmhd = 2,2,6,6-tetramethyl-3,5-heptandione] precursors. It has been shown that porous LSMO films can be obtained through an accurate tuning of processing parameters, which affect the nucleation and growth processes. The structural and compo- sitional characterizations of these films, carried out by X-ray diffraction (XRD) and energy dispersive X-ray analysis, point to the formation of a single polycrystalline La0.8 Sr0.2 MnO3 phase. The field emission scanning electron microscopy (FE-SEM) images confirm the formation of porous films. To evaluate the electrochemical activity of the cathodic films, an investigation by impedance spectroscopy (IS) has been performed
Surface adsorption of fibronectin-derived peptide fragments: the influence of electrostatics and hydrophobicity for endothelial cells adhesion
The adsorption on hydrophobic and hydrophilic silica-based surfaces of the integrin-binding PHSRN peptide and the single-residual-mutated analogues, PHSEN and PHSFN, is investigated by comparative QCM-D, XPS, SFG measurements and molecular dynamics calculations. Endothelial cell cultures on the peptide-functionalized materials highlight their tunable pro- or anti-angiogenic potential
Luminescence of a Ruthenium Complex Monolayer, Covalently Assembled on Silica Substrates, upon CO Exposure
High quality silica and Si(100) substrates were functionalized with a covalent 4-ClCH(2)C(6)H(4)SiCl(3) monolayer. Additional covalent bonding of an OH-phenol functionalized asymmetric ruthenium complex [Ru(bpy)(2)L](PF(6))(2) to the silylated substrates was further achieved, thus fabricating a new monolayer of ruthenium complex molecules on both silica and Si substrates. The chemical and spectroscopic characterization was carried out by X-ray photoelectron and UV visible spectroscopy measurements. The optical properties of this robust monolayer were studied at room temperature by luminescence measurements in controlled atmosphere. Results grant the system recognition properties for CO at ppm levels. The adopted synthetic procedure has proven to be effective in transferring molecular properties to the solid state thus obtaining a photoluminescent device
Core-shell Zn doped TiO2-ZnO nanofibers fabricated via a combination of Electrospinning and Metal-Organic Chemical Vapour Deposition,
Zn-doped TiO2 nanofibers shelled with ZnO hierarchical nanoarchitectures have been fabricated
combining electrospinning of TiO2 (anatase) nanofibers and metal–organic chemical vapor deposition
(MOCVD) of ZnO. The proposed hybrid approach has proven suitable for tailoring both the
morphology of the ZnO external shell as well as the crystal structure of the Zn-doped TiO2 core. It has
been found that the Zn dopant is incorporated in calcined electrospun nanofibers without any evidence
of ZnO aggregates. Effects of different Zn doping levels of Zn-doped TiO2 fibers have been scrutinized
and morphological, structural, physico-chemical and optical properties evaluated before and after the
hierarchical growth of the external ZnO shell over the electrospun nanofibers. Moreover, doping
promotes the incipient transition from the anatase to rutile phase in the core–shell Zn-doped TiO2–ZnO
nanostructures at lower temperature than that observed for pure TiO2. Finally, the present core–shell
hierarchical nanofibers possess a very large surface to volume ratio and exhibit a marked
cathodoluminescence with a strong UV and visible emission