Development of antibodies against secoisolariciresinol--application to the immunolocalization of lignans in Linum usitatissimum seeds.

Lignans are widely distributed plant metabolites associated with a large range of biological activities. In order to gain insight into their biosynthesis and their spatio-temporal accumulation an immunological probe was developed. Secondary metabolites generally have too small molecular weight to be antigenic and have to be associated with a carrier protein.

Extraction of lignans from flaxseed and evaluation of their biological effects on breast cancer MCF-7 and MDA-MB-231 cell lines.

Over the last decade, there has been an increasing interest in using flaxseed (Linum usitatissimum) in diet in order to improve nutritional and health status. Lignans are major components of flaxseed. Therefore an extraction procedure for lignans from flaxseed has been optimized.

Polymer biodegradation: mechanisms and estimation techniques.

Within the frame of the sustainable development, new materials are being conceived in order to increase their biodegradability properties. Biodegradation is considered to take place throughout three stages: biodeterioration, biofragmentation and assimilation, without neglect the participation of abiotic factors. However, most of the techniques used by researchers in this area are inadequate to provide evidence of the final stage: assimilation.

Altered nitrogen metabolism associated with de-differentiated suspension cultures derived from root cultures of Datura stramonium studied by heteronuclear multiple bond coherence (HMBC) NMR spectroscopy.

De-differentiation of transformed root cultures of Datura stramonium has previously been shown to cause a loss of tropane alkaloid synthetic capacity. This indicates a marked shift in physiological status, notably in the flux of primary metabolites into tropane alkaloids. Nitrogen metabolism in transformed root cultures of D.

How to build an adapted and bioactive cell microenvironment? A chemical interaction study of the structure of Ca-alginate matrices and their repercussion on confined cells.

Alginates are increasingly being used as medical materials (matrices for tissue regeneration, surgical sponges, hemostatic bandages, microbial and cell encapsulation, artificial bacterial biofilms, etc.). The constitution of alginate gel networks is a complex phenomenon.