Specific interactions and mechanism of association in highly viscous aldehyde 3-phenylpropanal.

In this paper, we investigated the thermal, dynamical, and structural properties, as well as association patterns, in 3-phenyl-1-propanol (3P1Pol) and 3-phenyl-1-propanal (3P1Pal), with special attention paid to the latter compound. Both systems turned out to be good glass formers, differing by 17 K in the glass transition temperature, which indicated a strong change in the self-assembly pattern. This supposition was further confirmed by the analysis of dielectric spectra, where, apart from the α-relaxation, also a unique Debye (D)-mode, being a fingerprint of the self-association, characterized by different dynamical properties (dielectric strength, timescale separation from the α-process), was detected in both samples.

Innovative Multilayer Biodegradable Films of Chitosan and PCL Fibers for Food Packaging.

The growing accumulation of plastic packaging waste poses severe environmental and health challenges. To address these issues, significant research has been devoted to developing biodegradable films; however, their weak mechanical and barrier properties limit their practical utility. This study introduces an innovative multilayer film production method, combining electrospun polycaprolactone (PCL) fibers with a chitosan matrix.

Rotating Polarization Magnetometry.

Precise magnetometry is vital in numerous scientific and technological applications. At the forefront of sensitivity, optical atomic magnetometry, particularly techniques utilizing nonlinear magneto-optical rotation (NMOR), enables ultraprecise measurements across a broad field range. Despite their potential, these techniques reportedly lose sensitivity in higher magnetic fields, which is attributed to the alignment-to-orientation conversion (AOC) process.

Inhibition of naproxen crystallization by polymers: The role of topology and chain length of polyvinylpyrrolidone macromolecules.

This paper presents an innovative approach that utilizes self-synthesized homopolymers of polyvinylpyrrolidone (PVP) with different architectures as effective matrices for inhibiting the crystallization of naproxen (NAP). We have thoroughly investigated amorphous solid dispersions containing NAP and (i) self-synthesized linear PVP, (ii) self-synthesized three-armed star-shaped PVP, and (iii) self-synthesized linear PVP with a mass (M) corresponding to the length of one arm of the star polymer, as well as (iv) commercial linear PVP K30 as a reference. Differential scanning calorimetry, X-ray diffraction, and infrared spectroscopy studies, as well as molecular dynamics simulations were conducted to gain comprehensive insights into the thermal and structural properties, as well as intermolecular interactions in the NAP-PVP systems.

Periodontal Patients' Perceptions and Knowledge of Dental Implants-A Questionnaire Study.

Highly prevalent tooth loss is observed among populations around the world. To restore masticatory function and satisfactory aesthetics, missing teeth must be replaced. Dental implants are increasingly used for this purpose.