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Nowadays, carbon nanotubes (CNTs) have a special place in plant science and promising effects have been reported. To study the effects of multi-walled carbon nanotube (MWCNTs), 0 (control), 10, 25, 50, 75 and 100 mg L-1, on rooting of cuttings in Lippia citriodora L., a factorial pot experiment in the form of randomized complete block design was set up in the research field of Shiraz University with 4 replications. Results showed that the application of multi-walled carbon nanotubes (10-50 mg L-1) significantly improved the root morphological traits compared to the control treatment. The highest increase in root weight (around 200% compared with control) was recorded in response to 50 mg L-1 MWCNT treatment. The root volume also increased by 165% under 50 mg L-1 MWCNT treatment while the lowest value was observed in cuttings treated with 100 mg L-1MWCNT. The lowest number of roots in cuttings belonged to 100 mg L-1MWCNT treatment. Application of 50 ppm MWCNT in comparison with control treatment significantly increased the number of roots in cuttings (by 50%). The application of this concentration caused the highest amount of root length which was 65.94% more than the control treatment. Although our finding showed promising effects of MWCNT on root of Lippia citriodora, the further comprehensive studies can are suggested on shoot biomass of the herbal plant.

Background and Objective: Transdermal permeability refers to the delivery of medication to the body through the skin for local or systemic treatment. Transdermal drug delivery systems do not have liver first pass effect and gastrointestinal adverse reactions. The use of chemical penetration enhancers and physical absorption systems are obsolete because there are expensive and skin structure. New outlooks are directed towards the use of novel drug delivery systems. Nano-carriers is one of the most important new technologies in the field of novel drug delivery. Nanoparticle formulations have about 10 to 100 nanometers size. Smaller particles are absorbing more easily form the skin surface. Method: In the present study, we review previous studies on the use of nano technology in transdermal drug delivery systems and discuss the mechanisms governing their capacity to improve their transdermal permeability. Conclusion: Different nano technological settings and formulations promote variable degrees of skin permeation. The ability to increase the permeability of therapeutic drugs depend on their characteristics, the physicochemical characteristics of the drugs, and the chosen therapeutic goals. [ABSTRACT FROM AUTHOR]

In this study the effect of nano-ZnO (at 0, 0.01 and 0.03%) and carboxymethyl cellulose (at 0, 0.5 and 1%) were studied on the quality and shelf life of "Red Gold" nectarine fruit during storage (0-1, 90 to 95% relative humidity) for 40 days. A factorial experiment was conducted in a completely randomized design with four replications. After treatment weight loss, total soluble solids, titratable acidity, pH, the content of vitamin C and browning index were evaluated during storage. Nano-ZnO and carboxymethyl cellulose treatments significantly reduced browning index in comparison with untreated control. 0.01% nano-ZnO and 1% carboxymethyl cellulose treatments significantly delayed weight loss. Nano-ZnO and carboxymethyl cellulose treatments also maintained total acidity and total soluble solids in comparison with control. Results revealed that the use of nano-ZnO and carboxymethyl cellulose treatments can maintain quality of "Red Gold" nectarine fruit. [ABSTRACT FROM AUTHOR]

objective: Investigating the dynamics of Iranian Nano-related publications form the ‎perspective of triple helix model (THM) is the goal of this research. ‎Methodology: The data of Nano-related publications collected from Iranian ISI ‎papers. This study maps the emergence of dynamics of knowledge base of ‎innovations using mutual information and transmission of uncertainty calculated ‎by THM. The ‎‏th.exe and‏ ‏th4.ex‏ ‏software were used in the process of analyzing ‎data. Domestic and international collaboration is analyzed. ‎Findings: The findings show the capabilities of THM for improving policy making ‎in science, technology and innovation (STI), especially in Nano sector and other ‎technological sectors in Iran. Also, the results indicate weakness of the dynamics of ‎knowledge-based relations among Iranian three sectors and international ‎collaborations.‎.‎

The present study was carried out to investigate the effect of silver nanoparticles to catalyzed peroxydisulfate in order to removal of Acid Red 87 from contaminated water, the simultaneous use of peroxydisulfate and nanosilver significantly increased the removal efficiency. The effects of various parameters such as Peroxydisulfate concentration, contaminant concentrations and dosage of silver nanoparticles on the dye removal were evaluated. Results showed that increasing the concentration of peroxydisulfate and nano-silver catalyst can increase the rate of pollutants removal. The optimal amount of nanosilver and the optimum concentration of peroxydisulfate were estimated 0.125g.L-1 and 10 mM, respectively.

In this work production of nano powders by means of sol-gel route were reviewed. Proposed mechanisms, required materials such as solvents or solutes that used for production of industrial nano powders and the effects of them on the characteristics of products were evaluated. Various processes that used for production of nano metal fluorides such as AlF3 and MgF2, nano composites such as Al2O3-ZrO2 and nano metal oxides such as TiO2 and TiO2 adapted to Mg2+ and Br2+ were also reviewed.