Category Archives: Year 2014 Issue 9

The Polish school – quo vadis?

The Polish school – quo vadis?
BERNARD P., MIGDAŁ-MIKULI A., CIURA K.

Please cite as: CHEMIK 2014, 68, 9, 784–793

The Polish school is subject to continuing changes. A series of educational reforms have been implemented which have affected in varying degrees the shape of the Polish school system, programmes and applied teaching methods. One can often be under the impression that reform is chasing after reform and the impact of the introduced...

Read more

Kinetic resolution of racemic mixture of 2-butyryloxy2-(ethoxy-P-phenylphosphinyl)acetic acid by fungi Penicillium oxalicum

Kinetic resolution of racemic mixture of 2-butyryloxy2-(ethoxy-P-phenylphosphinyl)acetic acid by fungi Penicillium oxalicum
SERAFIN M., ŻYMAŃCZYK-DUDA E.

Please cite as: CHEMIK 2014, 68, 9, 776–783

The aim of the study was to resolve the racemic mixture of 2-butyryloxy-2-(ethoxy-P-phenylphosphinyl)acetic acid by kinetically controlled biotransformation with whole-cell biocatalyst – Penicillium oxalicum strain with confirmed lipolytic activity. Also effect of the vegetable oil addition on induction of fungal lipases synthesis and efficiency of the biotransformation process was...

Read more

Nanotechnology – nanomaterials, nanoparticles and multifunctional core/shell type nanostructures

Nanotechnology – nanomaterials, nanoparticles and multifunctional core/shell type nanostructures
RUNOWSKI M.

Please cite as: CHEMIK 2014, , 68, 9, 766–775

Nanotechnology is a science dealing with nanomaterials preparation and investigation of their properties. Nanomaterials often reveal altered physicochemical and biological properties in comparison to their bulk analogues. What is more, they can exhibit interesting phenomena, such as quantum confinement in semiconducting quantum dots, surface plasmonic effects or superparamagnetism. An interesting group of nanomaterials...

Read more

Bacteriophages – nanoparticles of wide application range

Bacteriophages – nanoparticles of wide application range
SZERMER-OLEARNIK B., BORATYŃSKI J.

Please cite as: CHEMIK 2014, 68, 9, 761–765

Bacteriophages are viruses that infect selectively bacterial cells. The infected bacterium may undergo bacteriolysis releasing descendant virions, along with which fragments of bacterium cell wall, e.g. lipopolysaccharides (endotoxins; pyrogens) are also released. The important aspect of preparing bacteriophage preparations is standardisation of production and storage procedures, i.a. satisfying number of requirements related to their...

Read more

Cellulose nano fibres produced from vegetal biomass

Cellulose nano fibres produced from vegetal biomass
KAZIMIERCZAK J., WIETECHA J., CIECHAŃSKA D., BLODA A., ANTCZAK T.

Please cite as: CHEMIK 2014, 68, 9, 755–760

The article describes the method of producing micro and nano fibres of cellulose from vegetal biomass (mostly rapeseed straw, wheat, hemp, flax) as well as textile waste – flax roving. This technology was developed at the Institute of Biopolymers and Chemical Fibres under POIG project titled “Use of...

Read more