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The aim of this work was to synthesize and to characterize new pH-sensitive hydrogels that can be used in the controlled release of drugs, useful for dermal treatments or ophthalmology's therapies. Copolymers containing ...

Phenolic mercapto oxadiazole and triazole monomers were prepared and then azotized with aniline and Para-phenylene diamine. The prepared monomers have been characterized with FTIR and1HNMR. The six prepared monomers were...

Materias / palabras clave: Technology: Chemical technology: Polymers and polymer manufacture

Materias / palabras clave: Technology: Chemical technology: Polymers and polymer manufacture

Centella asiatica or gotu kola has a long history as a brain supplement. Gotu kola supplements are sold as liquid and dried extract which is less attractive for a younger generation. Jelly candy is an alternative dosag...

Abstract Understanding and controlling the marine degradation of biodegradable polymers is crucial for sustainable materials engineering and pollution prevention. However, a unified interpretive method that links multisc...

Abstract The stopping power of α-particles of initial energy 7.69 MeV (emitted from 214Po source) have been measured in the polyethylene(PE) and polypropylene(PP) using surface barrier detector technique and compared wi...

The purpose of this study was to attain and characterize ternary complexes of simvastatin, β-cyclodextrin (βCD) and different polymers, and then select those that lead to a greater increase in drug solubility. The comp...

The synthetic polymers and their combinations were employed to retard the release of nimesulide from microcapsules. Microcapsules were prepared in different ratios of Eudragit RL 100 and hydroxy propyl methyl cellulose (...

Papain has been known by many decades for wounded tissues repair. However, papain stability is not high enough to be commercialized in a stable pharmaceutical form; therefore its use is limited. The strategy to entrap pa...

In the present investigation, extended release tablets of metoprolol succinate were developed using cellulose derivatives and natural gums as matrix formers and were evaluated for its extended release characteristics. Th...

Molecular imprinted polymers are custom made materials with specific recognition sites for a target molecule. Their specificity and the variety of materials and physical shapes in which they can be fabricated make them i...

Abstract A method for measuring the surface energy of solids and for resolving the surface energy into contributions from dispersion and dipole‐hydrogen bonding forces has been developed. It is based on the measurement...

The chemistry of the coordination polymers has in recent years advanced extensively, affording various architectures, which are constructed from a variety of molecular building blocks with different interactions between ...

The Nature of Viscoelastic Behavior. Illustrations of Viscoelastic Behavior of Polymeric Systems. Exact Interrelations among the Viscoelastic Functions. Approximate Interrelations among the Linear Viscoelastic Functions....

Materias / palabras clave: polymer science, polymer chemistry; Technology: Chemical technology: Polymers and polymer manufacture

Materias / palabras clave: monomers, polymers, macromolecules, macroinitiators; Technology: Chemical technology: Polymers and polymer manufacture

Materias / palabras clave: polymer science, materials, polymer composites, additive manufacturing, nanocomposites; Technology: Chemical technology: Polymers and polymer manufacture

Materias / palabras clave: polymerization techniques, polymer processing, bioplastics, polymer analytic, application of polymers, simulation and modeling of polymers; Technology: Chemical technology: Polymers and polymer manufacture

In coastal areas, microplastics (MPs) can deposit in sediment, allowing it to be ingested by benthic organisms, like mussels, thus creating a possible transfer to humans. The aim of this study is to evaluate MPs pollutio...

Molecular plasmonics explores and exploits the molecule–plasmon interactions on metal nanostructures to harness light at the nanoscale for nanophotonic spectroscopy and devices. With the functional molecules ...

When polymers are irradiated with heavy ions new chemical groups are created in a few microns of the material. The irradiation changed the polarity and wettability on the surface so that could enhance the biocompatibilit...

Background: Molecular sieves are materials with selective sorption properties, and are used to separate or load mixtures of compounds based on their molecular shape and size. These materials are usually made from porous ...

In the last three years, 2 billion tonnes of untreated and dismissed agricultural wastes have been accumulated without adequate management of reuse or final disposal, resulting in dumping or burning. The circular economy...