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Bacterial infections represent a health issue worldwide. Over the past years, major interest has been given to developing new antibacterial and regenerative materials due to the increasing number of infections with pathogenic strains and the alarming antibiotic resistance. Polymer films and membranes with protective or even anti-infectious activity were developed. Some of them were based on nanoparticles with the main advantage that the resistance's development only seldom appears. Considering the Collagenic nature of the skin and the beneficial properties of Chitosan, the two polymers were proposed to be used in developing nanostructured wound dressing loaded with ZnO nanoparticles. These nanostructured materials confer promising characteristics to be used as anti-infectious wound dressing being biocompatible, antimicrobial against C. albicans and S. aureus, and highly hydrophilic able to absorb over 2300% water, which confer the premises of maintaining proper humidity and exudate absorption during wound healing. Fibrillar structures with Chitosan, Collagen, and Zinc Oxide can be an alternative for tissue regeneration. Electrospinning was used to fabricate fibrillar structures consisting of doing Chitosan, Collagen, and Zinc Oxide. The Zinc Oxide was used to defend the wound against infections and the beneficial role of Zn2+ in enhancing cell activity. The morphology of the fibrillar structures was studied by scanning electron microscopy while Collagen integrity by FT-IR spectroscopy.

The international investigations regarding the honeybees’ diversity carried out until now have revealed a certain degree of genetic pollution in different countries from Europe, because of the import of more productive honeybees’ races or of some interracial honeybees’ hybrids. This fact might have a negative impact on the success adaptability of honeybees at the ecosystem. Although, the Romanian honeybees (Apis mellifera carpathica) are well adapted to the local conditions and express a good resistance to diseases, the introgression (genetic pollution) of different honeybees’ races could be an imminent event. So that, starting from 2007, by a cooperation between the Institute for Beekeeping Research and Development from Bucharest and the Institute of Genetics of the University of Bucharest, we have initiated different investigations in order to obtain a more accurate state of the Romanian honeybees’ diversity. We have performed specific molecular analyses, using mtDNA (the COI-COII test) extracted from 32 different honeybees samples collected from several regions from Romania. For a better and detailed characterization of the collected honeybee’s samples we have also carried out some morphometric measurements of their wings. Our data have shown that the Romanian population of honeybees is almost homogenous from the genetic and the morphometric points of views. These types of investigations represent a premiere for Romania.