Dendrimers – fascinating nanoparticles in the application in medicine KUBIAK M.
Please cite as: CHEMIK 2014, 68, 2, 141–150
Dendrimers are organic compounds with a regular structure. They are a relatively new class of polymers, which can find potential application in various fields of science and industry. Dendrimers are symmetrically branched, three-dimensional, mainly spherical molecules. Described nanoparticles can find potential application mainly in medicine, nanotechnology, and recently in inorganic and organic chemistry.
Innovative composites of poly(lactic acid) for the production of packaging foils VUKOVIĆ-KWIATKOWSKA I., KACZMAREK H., DZWONKOWSKI J.
Please cite as: CHEMIK 2014, 68, 2, 135–140
Innovative composite packaging films were obtained from poly (lactic acid) (PLA) and polyacrylate. Mechanical properties, permeability to water vapor and carbon dioxide through the composite films, as well as their resistance to ultraviolet radiation used in the sterilization process were studied. The influence of refrigeration -18°C on the...
Schiff bases – interesting range of applications in various fields of science BRODOWSKA K., ŁODYGA-CHRUŚCIŃSKA E.
Please cite as: CHEMIK 2014, 68, 2, 129–134
Metal complexes play an important role in agriculture as well as industrial and pharmaceutical chemistry. Schiff bases are the condensation products of primary amines and carbonyl compounds. Schiff bases and their metal complexes are increasingly being used as catalysts, polymers and dyes. This paper reviews the properties of Schiff...
Application of cyanobacteria as biocatalysts for the reduction of diethy-l2-oxopropylphosphonate GÓRAK M., ŻYMAŃCZYK-DUDA E.
Please cite as: CHEMIK 2014, 68, 2, 123–128
The aim of the study was applying of autotrophic microorganisms as a biocatalyst in the reduction of oxoalkylphosphonates. Cyanobacteria strains Arthrospira maxima CCALA 027 and Nodularia sphaerocarpa CCALA 114 are capable to reduce diethyl 2- oxopropylphosphonate to the corresponding diethyl 2- hydroxypropylphosphonate. The degree of conversion of the substrate was respectively...
The use of components of the extract from the leaves of walnut Juglans regia L against the fungus Ascosphaera apis GARBACZEWSKA S., CIENIECKA-ROSŁONKIEWICZ A., MICHALCZYK A., KIEŁCZEWSKA A.
Please cite as: CHEMIK 2014, 68, 2, 117–122
Ascosphaera apis is the fungal cause of the honey bee larvae disease chalkbrood. The influence of the extract from the leaves of the walnut (Juglans regia L) and obtained by the chromatographic separation fraction of the linear...
Preparation of nanosilver via one-step chemical reduction in aqueous medium at elevated pressure BANACH M., PULIT J., TYMCZYNA L., CHMIELOWIEC- KORZENIOWSKA A.
Please cite as: CHEMIK 2014, 68, 2, 111–116
Nanosilver synthesis was carried out by a one-step chemical reduction. Ascorbic acid and gelatin were used as reducing agent of silver ions and stabilizing factor of nanoparticles. Obtained nanosilver suspensions were characterized by monomodal particle size distribution with their average size of 5–125...
Fatty acids in vegetable oils and their importance in cosmetic industry ZIELIŃSKA A., NOWAK I.
Please cite as: CHEMIK 2014, 68, 2, 103–110
Among the important skin care products are those that contain an occlusive lipids acting on the epidermis, inhibiting transepidermal water loss and to support the synthesis of lipids. The important lipids are fatty acids, especially essential fatty acids involved in the formation of proper intercellular cement. The following will discuss...
Comparison of methods of herbs and spices decontamination BRODOWSKA A., ŚMIGIELSKI K., NOWAK A.
Please cite as: CHEMIK 2014, 68, 2, 97–102
The presentation methods of decontamination of plant materials, including herbs and spices, pointing to their pros and cons. Attention was turned to the ozone utilizing technology, both in aqueous and in gaseous phase.
Urea (carbamide, carbonic acid diamid) is an organic chemical substance, that is used in cosmetics industry because of its keratolytic and moisturizing properties. The use of urea and its derivatives in the cosmetics industry KAPUŚCIŃSKA A., NOWAK I.
Please cite as: CHEMIK 2014, 68, 2, 91–96
One of the most effective moisturizing ingredients used in cosmetology is urea. It is a component of the natural moisturizing factor (NMF) present in keratinocytes ,...
Isomers and odor or nose as stereochemist WIŃSKA K., POTANIEC B., MĄCZKA W., GRABARCZYK M., ANIOŁ M., WAWRZEŃCZYK CZ.
Please cite as: CHEMIK 2014, 68, 2, 83–90
Our sense of smell is able to recognize a variety of scents, which apparently are very similar. Thus olfactory receptors that are in some way it is possible to distinguish selective enantiomeric pairs fragrances and other volatile substances stereoisomers. This paper presents the differences and similarities...