Immunization of cattle with a chitinase peptide containing predicted B-cell epitopes reduces tick biological fitness.

, the cattle fever tick, is the most important ectoparasite impacting the livestock industry worldwide. Overreliance on chemical treatments for tick control has led to the emergence of acaricide-resistant ticks and environmental contamination. An immunological strategy based on vaccines offers an alternative approach to tick control.

Optimizing the Properties of Hybrids Based on Graphene Oxide for Carbon Dioxide Capture.

The reduction of CO emissions and its elimination from the atmosphere has become one of the major problems worldwide, since CO is the main cause of the greenhouse effect and climate change. In recent years, a great number of carbonaceous materials that can be used as CO adsorbents have been synthesized. The strategy is usually to synthesize the materials and determine their adsorption capacity without studying previously the factors that influence this capacity.

The behavior of graphene oxide trapped at the air water interface.

Graphene oxide is a derivate of graphene obtained by oxidation of graphite and other carbonaceous materials. The more accepted structure consists in carbonyl and carboxyl groups located at the edge of the graphene network and hydroxyl and epoxy groups attached to the basal plane. The percentage of O-groups depends on the synthesis route and the material used as carbon source.

Contribution of resonance energy transfer to the luminescence quenching of upconversion nanoparticles with graphene oxide.

Upconversion nanoparticles (UCNP) are increasingly used due to their advantages over conventional fluorophores, and their use as resonance energy transfer (RET) donors has permitted their application as biosensors when they are combined with appropriate RET acceptors such as graphene oxide (GO). However, there is a lack of knowledge about the design and influence that GO composition produces over the quenching of these nanoparticles that in turn will define their performance as sensors. In this work, we have analysed the total quenching efficiency, as well as the actual values corresponding to the RET process between UCNPs and GO sheets with three different chemical compositions.

Development and In Vitro Evaluation of a Novel Drug Delivery System (Albumin Microspheres Containing Liposomes) Applied to Vancomycin.

A pharmaceutical vehicle based on the encapsulation of liposomes with unmodified albumin has been designed, formulated, and in vitro characterized. Microscopy was used to investigate particle morphology and dynamic light scattering to determine the size and zeta potential. Vancomycin was selected as a model drug for water-soluble and moderately albumin-bound products.