Cone snails of the genus Conus are one of the most toxic species of carnivorous marine invertebrates in tropical and subtropical areas. They are highly regarded, due to their medicinal compounds, which derived from their toxins. In order to examine the venom apparatus structure, 12 specimens of C. TEXTILE were collected from the coastal zone of Gheshm Island and then they fixed in Bouin's for 48 hours and transferred to laboratory in ethanol. After breaking of shellfish, the venom apparatus were isolated and their different parts (after molding and cutting) were stained by HE and HEG and photographed by Nikon microscope. The stereomicroscope observation showed that the venom apparatus was included: (1) toxin production part (venom duct), (2) toxin transmission part (venom bulb), and (3) injection part (radula and proposcis). Photographs of sections showed that the venom bulb was completely muscular, consisting of longitudinal and transverse muscle fibers, and in their middle part a channel with epithelial cells was observed. Venom duct walls composed of 3 parts including the outer layer of muscle an inner layer of columnar epithelial cells with basal nucleus and the inner lumens which filled by the granules.HEG stained slides showed a much sharper cytoplasmic and nuclear implementation, particularly granules containing toxins were easily countable and measurable. Although the conventional HE staining method clearly showed different parts of the gland, but HEG method in addition to distinguishing different sections of tissue, seemed to be a suitable technique for studying the role of different parts of the organ in producing conotoxin in the form of secretory granules.

CONDUCTIVE membranes show many benefits including fouling reduction for feeds containing ionic species. These membranes may be prepared either by CONDUCTIVE polymers or coating of the surfaces of non-CONDUCTIVE membranes with CONDUCTIVE polymer. In this research, the commercial microfiltration GVHP membrane manufactured from PVDF was coated with polypyrrole using two different techniques. The conductivity of the prepared membranes was measured. In this paper, effects of various factors including concentration of the solutions, oxidizing agents, time for leaving the support in the solutions, support type and temperature on membrane conductivity were investigated.

Printing technology is known as one of the most suitable methods for adding electrical functionalities to TEXTILEs and inkjet method because of advantages such as low cost, availability, flexibility, … is a special method amongst all available printing techniques. This is the objective of this research to employ the novel method of using reactive inks in order to react with each other after being jetted onto the substrate for fabrication of simple electric circuit components. In this method, dilute solution of silver salt and a reducing solution are subsequently printed on each substrate. Oxidation-Reduction reaction between two inks deposits metallic silver nanoparticles by in situ reduction of silver salt forming an electrically CONDUCTIVE surface. The best reducing agent for inkjet deposition of silver was found to be ascorbic acid at normal pH. CONDUCTIVE lines and patterns were fabricated on paper, plastic films and TEXTILE fabrics using the above technique and the effect of different parameters on their final conductivity were investigated and tried to gain the highest possible conductivities on each substrate. Based on our observations and results; inkjet technology posses very high potential for fabrication of silver nanoparticles containing patterns with conductivities up to 5x105 S/m for use as circuitry components.