Publications

Incidence and Determinants of Falls Following Hip and Knee Joint Arthroplasty: A Systematic Review and Meta-Analysis

Hip and knee joint arthroplasty is a common procedure. The true incidence and predictors of postoperative falls remain uncertain. The aim of this systematic review and meta-analysis is to (1) determine the overall incidence of falls post hip and knee joint arthroplasty, (2) identify risk factors associated with these falls, and (3) evaluate the effectiveness of fall prevention strategies and interventions in reducing fall incidence. This systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and was registered in PROSPERO. This research was conducted using PubMed, Google Scholar, Web of Science, ScienceDirect, and Wiley Online Library. Two independent reviewers screened studies by title, abstract, and full text. The quality of the included articles was assessed using the Methodological Index for Non-Randomized Studies (MINORS). A total of 1,282 publications were identified, leading to the review of 988 patients aged between 60 and 88 years, reviewed for this systematic review from seven full-text articles. Fall incidence post total knee arthroplasty (TKA) varied, with five reporting increased rates (36%, 32.9%, 38.2%, 22.1%, and 32%) and two indicating a decrease (50% and 26.4% reduction). All studies emphasized the role of postoperative limitations and psychological factors on fall risk. Additionally, patients living alone had higher odds of falling, highlighting the need for targeted postoperative care. While fall incidence post hip and knee arthroplasty varies, improvements in quality of life and functional outcomes following surgery are reported. Future research should focus on larger sample sizes, control groups, objective assessments, extended follow-up periods, and various joint replacements.

Fast and Sensitive Colorimetric Detection of H₂O₂ and Glucose: A Strategy Based on Polyoxometalate Clusters

Proof-of-concept: A polyoxometalate cluster has been used as a highly effective peroxidase mimetic to catalyze H2O2 oxidation of various peroxidase substrates to give colored solutions, leading to a simple, fast, sensitive, and selective assay for H2O2 with a linear range and detection limit of 1–20 and 0.4 μM. This assay was also used for glucose detection both in buffer solution and diluted serum with a linear range and detection limit of 1–10 and 0.5 μM.

Interaction of antipsychotic drug with novel surfactants: Micellization and binding studies

Synthesis, structural, electrochemical, and spectroscopic studies of some (diimine)ruthenium nitrile complexes

The syntheses of cationic ruthenium(II) complexes [Ru(Me₂-bpy)(PPh₃)₂RRʹ][PF₆]x {Me₂-bpy = 4,4ʹ-dimethyl-2,2ʹ-bipyridine, (3) R = Cl, Rʹ = N≡CMe, x = 1, (4) R = Cl, Rʹ = N≡CPh, x = 1, (5) R = Rʹ = N≡CMe, x = 2} and [Ru(Me₂-bpy)(κ²-dppf)RRʹ][PF₆]x {dppf = 1,1ʹ-bis(diphenylphosphino)ferrocene, (6) R = Cl, Rʹ = N≡CMe, x = 1, (7) R = Cl, Rʹ = N≡CPh, x = 1, (8) R = Rʹ = N≡CMe, x = 2} are reported, together with their structural confirmation by NMR (31P, 1H) and IR spectroscopy and elemental analysis, and, in the case of trans-[Ru(Me₂-bpy)(PPh₃)₂(N≡CCH₃)Cl][PF₆] (3), by X-ray crystallography. Electronic absorption and emission spectra of the complexes reveal that all complexes except 4 and 6 are emissive in the range 370–400 nm with 8 exhibiting an emission in the blue. Cyclic voltammetry studies of 3–8 show reversible or quasi-reversible redox processes at ca. 1 V, assigned to the Ru(II/III) couple.

CCDC 850535: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Highly Ordered Mesoporous Silica Films with Perpendicular Mesochannels by a Simple Stöber‐Solution Growth Approach

A simple solution: In the simple approach to silica films with perpendicular mesochannels presented herein, the substrate is immersed into a Stöber solution in which the silica precursors are hydrolyzed, cross-linked by an ammonia catalyst, and assembled with a surfactant on the substrate to form hexagonal mesostructures perpendicular to the substrate surface. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.

A magnetron sputtered Mo₃Si thin film: an efficient electrocatalyst for N₂ reduction under ambient conditions

Mo 3 Si is a superior catalyst for electrochemical N 2 reduction in 0.1 M Na 2 SO 4 , offering a large NH 3 yield of 2 × 10 −10 mol s −1 cm −2 and a high Faraday efficiency of 6.69% at −0.4 V and −0.3 V vs. a reversible hydrogen electrode, respectively.

Distinguished Cd(II) Capture with Rapid and Superior Ability using Porous Hexagonal Boron Nitride: Kinetic and Thermodynamic Aspects

In present work, a systematical and comprehensive understanding for the adsorption of Cd(II) on porous hexagonal boron nitride (p-BN) was studied. The chemical compositions, morphology and surface functional groups of p-BN before and after adsorption were characterized by SEM, HRTEM, BET, XRD, and FT-IR. The effects of pH, adsorbent dosage, contact time and temperature on Cd(II) adsorption were investigated. The maximum adsorption capacity for Cd(II) achieves 184 mgg -1 at pH 7.0 and 313 K. The kinetic data fitted well with pseudo-second-order model and intra-particle diffusion model, indicating that the adsorption is mainly controlled by chemisorption, and the rate-limiting step is the molecular diffusion. The adsorption isotherms are in accordance with Freundlich and Langmuir model respectively, suggesting Cd(II) adsorbed on the heterogeneous surface through multilayer and monolayer adsorption. The thermodynamic parameters are calculated to confirm the spontaneous and endothermic process of Cd(II) sorption. Spectroscopic results from XPS imply that p-BN adsorbent had substantial functional groups and bonding sites, which is propitious to uptake Cd(II) from wastewater. These results revealed that p-BN is a promising candidate for Cd(II) scavenging.

Microwave-assisted rapid green synthesis of photoluminescent carbon nanodots from flour and their applications for sensitive and selective detection of mercury(II) ions

Self-repairing fiber polymer composites: mechanisms and properties

Titanium-based metal-organic frameworks for photocatalytic applications

3-Amino-1-(thiophen-2-yl)-9,10-dihydrophenanthrene-2,4-dicarbonitrile

In the title compound, C(20)H(13)N(3)S, the partially saturated ring adopts a twisted half-boat conformation with the methyl-ene C atom closest to the amino-benzene ring lying 0.690 (6) Å out of the plane defined by the five remaining atoms. The dihydro-phenanthrene residue has a folded conformation [dihedral angle between the outer benzene rings = 26.27 (18)°]. The thio-phen-2-yl ring forms a dihedral angle of 63.76 (19)° with the benzene ring to which it is attached. In the crystal, inversion dimers linked by pairs of N-H⋯N hydrogen bonds generate R(2) (2)(12) loops. The dimers are linked into layers in the bc plane by weak C-H⋯π inter-actions. The thio-phen-2-yl ring is disordered over two essentially coplanar but opposite orientations in a 0.918 (4):0.082 (4) ratio.

Sensitive and selective Cu2+ sensor based on 4-(3-(thiophen-2-yl)-9H-carbazol-9-yl)benzaldehyde (TPCBZ) conjugated copper-complex

Ternary Nanocomposites of Porphyrin, Angular Au Nanoparticles and Reduced Graphene Oxide: Photocatalytic Synthesis and Enhanced Photocurrent Generation

A noble strategy: A photocatalytic strategy toward organic–inorganic ternary nanocomposites of Sn-porphyrin (SnP), angular Au nanoparticles (AuNPs), and reduced graphene oxide (RGO) using SnP as an effective photocatalyst for the reduction of both GO and AuIII under visible-light irradiation. The synergistic effect of surface plasmon resonance excitation in AuNPs and SnP leads to a 27-fold increase in the photocurrent.

CCDC 834288: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

List of Contributors

1-Phenyl-1<i>H</i>-pyrazole-4-carbaldehyde

In the title mol-ecule, C(10)H(8)N(2)O, the five- and six-membered rings form a dihedral angle of 10.14 (9)°. The aldehyde group is almost coplanar with the pyrazole ring to which it is connected [O-C-C-C torsion angle = -179.35 (17)°]. In the crystal, inversion dimers are linked by four C-H⋯O inter-actions as the carbonyl O atom accepts two such bonds. The dimeric aggregates are linked into supra-molecular layers in the ac plane by C-H⋯π and π-π [ring centroid(pyrrole)⋯ring centroid(phen-yl) = 3.8058 (10) Å] inter-actions.

Structural and Magnetoelectrical Properties of MFe₂O₄ (M = Co, Ni, Cu, Mg, and Zn) Ferrospinels Synthesized via an Egg-White Biotemplate

Nanocrystalline metal ferrites (MFe₂O₄, M = Co, Ni, Cu, Mg, and Zn) were successfully synthesized via autocombustion synthesis using egg white. X-ray diffraction (XRD) measurements revealed the crystallization of the entire ferrites either in the tetragonal structure, such as in the case of CuFe₂O₄, or cubic spinels such as in other studied ferrites. The Fourier transform infrared spectral study revealed the characteristic vibration bands of ferrites. Compared to other synthesis methods, the observed variation in the obtained structural parameters could be due to the different cation distribution of the prepared ferrites. In agreement with XRD measurements, the transmission electron microscopy images showed agglomerated particles with cubic morphology for all ferrites. On the other hand, CuFe₂O₄ showed tetragonal morphology. The magnetization values were found to vary with the type of the metal ion, and CoFe₂O₄ showed the highest one (42.8 emu/g). Generally, the lower magnetization values obtained than those reported in the literature for all studied ferrites could be attributed to the smaller particle sizes or the cation redistribution. The obtained coercivity values are observed to be higher than their related values in the literature, exhibiting the impact of the present synthesis route. Ac-conductivity as a function of temperature and frequency indicated semiconducting properties with the observed change in the conduction mechanism by increasing the temperature. The obtained low dielectric constant values could suggest using the entire ferrites in high-frequency applications such as microwave devices.