radiobiology of cotton plant, variety 108-f

in experiments with plants m/sub 1/, after gamma -irradiation of seeds, and m/sub 2/ a study was made of the variability of somatic and genetic parameters. the variety 108-f is a plant of a median sensitivity. an unusual growth dynamics in ontogenesis is described (i.e. inhibition at early stages of the generative development is transferr..

Application of enzymatic degradation in the utilization of textile wastes. Characteristics of biodegradation product and its practical application

This paper presents as assessment of the possibility of repeated use of polyester material obtained after the biodegradtion process of cellulose in wastes from fibrous polyester-cellulose blends. As a result of the enzymatic degradation of cellulose, the polyester component was isolated from the blend and studied with regard to its mechan..

Preparation of biodegradable microporous bioactive substances carriers made from cellulose carbamate and its blends with starch

Cellulose carbamate technology was used for the preparation of cellulose beads instead of the non-ecological viscose method. The microporous structure of beads made from natural biodegradable polymers such as cellulose carbamate and starch was produced during studies. These beads were tested according to water and soil tests. The triflura..

Insecticide residues in wool from sheep jetted by hand and via automatic jetting races

Sheep with 8 months wool were jetted according to registered label instructions with diazinon or cyromazine using a standard Harrington automatic jetting race, a modified jetting race or by hand. The modified jetting race delivered more insecticide soluti

Regeneration of silk fibroin from silk waste and its applications

Silk waste can be reutilised by extracting the fibroin powder and using it in various industries. The regeneration of fibroin powder from silk waste may be possible by using either formic acid and calcium chloride system in the ratio 10:1 or by using lithium bromide solution. Regeneration is accompanied by some changes in the crystalline ..

Drug release profile, solubility and degradability of cross-linked porous silk fibroin

In this paper, the release and the permeation characteristics of model drugs of crosslinked porous silk fibroin gel (CPFG) and its solubility and degradability were investigated. CFFG was prepared by using ethylene glycol diglycidyl ether (EGDE) as a cros

Ceramic fibres for microfiltration

A method for making hollow ceramic membranes with small diameters and wall thicknesses has been developed by the Thuringian Institute for textiles and Plastic Research, by exploiting a novel manufacturing process, itself based on a spinning technique for making hollow fibres. The resulting membranes have a diameter of less than 1mm and a ..

Handle characteristics of 'tatami' surface matting made of polyacrylonitrile fiber (Japanese)

Handle characteristics of Tatami surface matting made of polyacrylonitrile )=PAN) fiber were investigated by panels of women students using paired comparison and ranking methods. Basic thermal properties such as thermal insulation value, thermal conductiv

Hollow fibrer bioreactor for high density and continuous production of carcinoembryonic antigen

Continuous cultivation of CW2 cells (a human colorectal adenocarcinoma tumor cell) using a hollow fiber bioreactor was investigated for the production of carcinoembryonic antigen (CEA) over 34 days. The CEA production rate increased with the increase in incubation time up to 20 days and was found to be approximately a constant value, 2-ng..

Dendrimer coatings for carbon fibers

Recently a new and interesting class of macromolecules has been receiving a great deal of attention in the polymer community. Dendritic polymers represent a fourth major class of macromolecular architecture that ranges in complexity from hypebranched syst