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Rationalization of the structural, electronic and photophysical properties of silver(I) halide -picolylamine hybrid coordination polymers.
Dalton Trans
January 2025
Consiglio Nazionale delle Ricerche, Istituto per la Sintesi Organica e la Fotoreattività (CNR-ISOF), Via Piero Gobetti 101, 40129 Bologna, Italy.
Hybrid coordination polimers based on AgX (with X = Cl, Br) and 2-, 3-, 4-picolylamine ligands, obtained by means of solvent-free methods, show peculiar luminescence properties that are strongly influenced by their structural motif, which in turn is defined by the adopted isomer of the ligand. A comprehensive study, combining photophysical methods and DFT calculations, allowed to rationalize the emissive behaviour of such hybrid coordination polymers in relation to their crystal structures and electronic properties. By means of luminescence measurements at variable temperatures, the nature of the emissive excited states and their deactivation dynamics was interpreted, revealing XMLCT transitions in the [(AgX)(2-pica)] compounds, a TADF behaviour in the case of 3-pica derivatives, and a dual emission at room temperature for the [(AgX)(4-pica)] family.
View Article and Find Full Text PDFChromogenic bacterial staining of teeth: a scoping review.
BMC Oral Health
January 2025
Basic Medical and Dental Sciences Department, College of Dentistry, Ajman University, Ajman, UAE.
Article Synopsis
- This scoping review aims to investigate the causes, clinical traits, and treatment methods for chromogenic staining of teeth, following the PRISMA 2022 guidelines.
- A systematic search across multiple medical databases led to the identification of 989 articles, with 21 ultimately included for analysis, highlighting that chromogenic bacteria can cause staining in 3.1 to 18.5% of cases, primarily resulting in black discoloration.
- The findings indicate a lack of comprehensive literature on this topic, emphasizing the need for further research into effective management strategies for these challenging stains linked to specific oral bacteria.
Explicit travelling wave solutions to the time fractional Phi-four equation and their applications in mathematical physics.
Sci Rep
January 2025
Department of Mathematics and Statistics, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia.
In applied research, fractional calculus plays an important role for comprehending a wide range of intricate physical phenomena. One of the Klein-Gordon model's peculiar case yields the Phi-four equation. Additionally, throughout the past few decades it has been utilized to explain the kink and anti-kink solitary waveform contacts that occur in biological systems and in the field of nuclear mechanics.
View Article and Find Full Text PDFHirayama's Disease: About a Clinical Observation.
Cureus
December 2024
Neurology, Hassan II University Hospital, Fez, MAR.
Hirayama disease, also known as non-progressive juvenile spinal muscular atrophy of the upper limbs, brachial monomelic amyotrophy, or benign focal atrophy, affects the C7 D1 myotomes; an electromyogram (EMG) shows neurogenic damage in the C7-C8-T1 territories. It causes weakness and amyotrophy of the distal upper limb. Although it usually occurs on one side only, bilateral symmetric cases of Hirayama disease have occasionally been described.
View Article and Find Full Text PDFEctopic Salivary Duct Cyst in the Median Mandible: A Case Report with Radiological, Immunohistochemical and Genetic Studies.
Int J Surg Pathol
January 2025
Division of Pathology, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Saitama, Japan.
Median mandibular cyst is defined as an odontogenic cyst in a rare midline location. In spite of this definition, there have been two reports of a peculiar lesion, so-called "ciliated" median mandibular cyst associated with vital teeth, the origin of which cannot be explained in terms of odontogenic epithelium multipotentiality. We describe a thorough profile of an additional example.
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