A New Proton Transfer Complex Between 3,4-Diaminopyridine Drug and 2,6-Dichloro-4-nitrophenol: Synthesis, Spectroscopic Characterization, DFT Studies, DNA Binding Analysis, and Antitumor Activity.

The proton transfer (PT) complexation reaction between 3,4-diaminopyridine (3,4-DAP), an important drug, and 2,6-dichloro-4-nitrphenole (DCNP) was investigated experimentally and theoretically. The experimental results indicated a chemical reaction occurred because of a hydrogen bonding, followed by proton transfer from the DCNP to the 3,4-DAP in different polar media. The Benesi-Hildebrand equation was used to estimate the formation constant (), molar absorptivity (ε), and other physical parameters.

Outcomes of Hypospadias Repair Based on Surgical Techniques: A 4-Year Retrospective Study.

Purpose: This study aimed to report the outcomes of hypospadias repair performed at a tertiary-level hospital during 2018 to 2021.

Methods: A retrospective chart review of 119 patients was performed.

Results: The most frequent coronal hypospadias cases were distal.

Study on the Isotherms, Kinetics, and Thermodynamics of Adsorption of Crystal Violet Dye Using Ag-NPs-Loaded Cellulose Derived from Peanut-Husk Agro-Waste.

A huge amount of textile dyes are released as industrial waste into the environment each year, which alters the water's natural appearance and causes toxicity and carcinogenicity in the human body. Peanut husk is considered an agro-waste and contains many valuable compounds, such as cellulose. Different concentrations of cellulose were extracted from peanut husk and then loaded with bio-silver nanoparticles, which were fabricated using neem leaves () as a reducing agent to form Ag-cellulose nanocomposites (Ag-Cell-NCMs).

New Charge Transfer Complexes of K-Channel-Blocker Drug (Amifampridine; AMFP) for Sensitive Detection; Solution Investigations and DFT Studies.

UV-Vis spectroscopy was used to investigate two new charge transfer (CT) complexes formed between the K-channel-blocker amifampridine (AMFP) drug and the two π-acceptors 2,3-dichloro-5,6-dicyano--benzoquinone (DDQ) and tetracyanoethylene (TCNE) in different solvents. The molecular composition of the new CT complexes was estimated using the continuous variations method and found to be 1:1 for both complexes. The formed CT complexes' electronic spectra data were further employed for calculating the formation constants (), molar extinction coefficients (), and physical parameters at various temperatures, and the results demonstrated the high stability of both complexes.

Yield of whole-body computed tomography at a low-volume emergency department: A 5-year experience.

Objectives: To share our experience with immediate whole-body computed tomography (WBCT) imaging for trauma patients and to determine its association with surgical intervention and hospital admission.

Methods: This retrospective observational study included 208 trauma patients who presented to the emergency department and underwent WBCT at the King Abdulaziz University Hospital, Jeddah, Saudi Arabia between January 2014 and November 2018. We excluded pregnant patients and those who went into traumatic cardiac arrest or died before imaging.

Synthesis, DNA binding and complex formation reactions of 3-amino-5,6-dimethyl-1,2,4-triazine with Pd(II) and some selected biorelevant ligands.

With the purpose of studying the binding behavior of Pd(II) complexes with DNA as the main biological target, and their ability to penetrate reasonably into tumour cells and destroy their replication ability, Pd(ADT)Cl2 complex was synthesized and characterized, where ADT is 3-amino-5,6-dimethyl-1,2,4-triazine. Stoichiometry and stability constants of the complexes formed between various biologically relevant ligands (amino acids, amides, DNA constituents, and dicarboxylic acids) and [Pd(ADT)(H2O)2](2+) were investigated at 25°C and at constant 0.1moldm(-3) ionic strength.