Effect Of Nanochitosan Research Articles

Effect of nano chitosan, nano micronutrients and bio capsules on growth and flowering attributes of Kinnow Mandarin (Citrus reticulata)

Effect of nano chitosan, nano micronutrients and bio capsules on growth and flowering attributes of Kinnow Mandarin (Citrus reticulata)

The Effect of Nano-chitosan and Nano-curcumin on Radiated Parotid Glands of Albino Rats: Comparative Study

Decreasing the salivary flow rate manifested by xerostomia occurs early during the irradiation treatment. The duration of depressed salivary function varies among patients. Various histopathological changes occur in the salivary glands. The current study was performed to investigate and compare between the possible anti-radiotherapeutic effect of the gamma rays-synthesized curcumin nanoparticles (Cur NPs), and chitosan nanoparticles (Cs NPs). They were utilized to overcome the histopathological changes associated with radiation therapy in albino rats’ parotid glands. Sixty adult male Albino rats were utilized, fifteen as control group, fifteen as radiated group and thirty as Cur NPs and Cs NPs treatment groups. The parotid glands were dissected and examined histologically, immunohistochemically for vascular endothelial growth factor (VEGF) as well as histo-morphometrically. The histological results proved the antiradio-therapeutic effect of Cur NPs, and Cs NPs, with the least degenerative changes in the Cur NPs treated group. A high significant increase in VEGF was recorded in the radiated group as compared to the other treated groups. Cs NPs have proved to be an anti-radiotherapeutic and anti-oxidant substrate in treating the histopathological changes in radiated parotid glands of albino rats. However, it was lagging behind Cur NPs in all analyses but non-significant differences between them have been recorded.Graphical

Physiological and morphological response of tomato plants to nano-chitosan used against bio-stress induced by root-knot nematode (Meloidogyne incognita) and Tobacco mosaic tobamovirus (TMV)

Root-knot nematodes (Meloidogyne spp.) have been reported to be responsible for large economic losses of agricultural crops due to their wide host range and variety of suitable climates. The control measures of these parasitic nematodes depend upon synthetic nematicides and a small number bio-based products. Chemical nematicides are eliciting adverse effects on the environment and human health. In the present study, an alternative tool, nano-chitosan was tested for the control the root-knot nematodes, Meloidogyne incognita, and Tobacco mosaic tobamovirus (TMV) in greenhouse-cultivated tomato. The effect of nano-chitosan on morphological (weight and length of shoot and root systems) and biochemical responses (Polyphenol oxidase, Peroxides, Total soluble phenol and Total protein) was assessed. The obtained results indicated that densities of Meloidogyne incognita alone or in the presence of TMV were decreased by nano-chitosan at a range of 45.89 to 66.61%, while root gall desntiy was reduced between 10.63 and 67.87%. Moreover, the density of TMV on tomato leaves singly or in the presence of M. incognita was suppressed at range of 10.26 to 65.00% after 20 days of infection, and reached up to 58.00% after 40 days of infection. However, soil application of nano-chitosan pre infection reduced TMV density only by 5.48%. Morphogenesis of tomato plants such as shoot and root systems were significantly improved. The impacts of nano-Chitosan applications on total soluble phenol, total protein, polyphenol oxidase and peroxides after 20 and 40 days of infections varied.

Effect of nano-chitosan and acetic acid on quality characteristics of cold-stored grape cv. Rasheh.

Effect of nano-chitosan and acetic acid on quality characteristics of cold-stored grape cv. Rasheh.

Effect of nano-chitosan and nano-doxycycline gel on healing of induced oral ulcer in rat model: histological and immunohistochemical study.

The aim of this study was to investigate the effect of nano-chitosan and nano-doxycycline gel on healing of oral ulcers. In this study, 37 rats were used, four of which acted as normal controls (group 1), while the remaining 33 were distributed into three groups, each with 11 rats. Oral ulcers were chemically induced in the labial mucosa, after which (group 2), ulcer group received no treatment, (group 3) received nano-chitosan gel, and (group 4) received nano-doxycycline gel. They were scarified after 14 days and histologically examined as well as immunostaining for vascular endothelial growth factor (VEGF) and proliferating cell nuclear antigen (PCNA). The best clinical and histologic healing results were shown in nano-chitosan group, followed by nano-doxycycline group, while the ulcer group showed incomplete healing. This was confirmed by immunostaining as area % of VEGF and number PCNA were the highest in nano-chitosan group followed by nano-doxycycline group, then ulcer group. Both nano-chitosan and nano-doxycycline gels improved the healing of chemically induced oral ulcers; however, nano-chitosan exhibited better healing outcomes. Nano-chitosan and nano-doxycycline gels are both viable and safe alternatives to current ulcer treatments.

Investigating response of yield traits and oil content of sesame variety (Sesamum indicum L.) to nano-magnesium fertilizer and biopolymer chitosan under limited water stress

IntroductionSesamum, scientifically named Sesamum indicum L., is one of the oldest oilseed families and is adapted to warm and semi-warm regions and is known as the queen of oilseeds. The use of nanotechnology in the production of fertilizers results in optimal release and increased efficiency of absorption of nutrients in fertilizer which leads to significant economic and environmental benefits. Chitosan elicits stimulating defense mechanisms and is beneficial to plants, animals and humans and is environmentally friendly. Due to the fact that water stress and dehydration in Iran is always one of the most important agricultural problems and due to the importance of magnesium in photosynthesis of plants and also the use of different polymers such as chitosan to reduce the damage caused by stress, this study aimed to evaluate the effect of nano chitosan and magnesium application under water stress conditions on some sesame traits for sustainable agriculture development in Varamin region. Materials and methodsIn order to evaluate limited water stress and foliar application of magnesium and chitosan on growth and yielding traits and oil content of two sesame varieties, an experiment was conducted as a split factorial based on completely randomized blocks designed with three replications in a research farm in the southern Varamin Province, Iran, during 2016-17 growing season. Irrigation cut-off based on BBCH scale in three-level included: normal irrigation, 65 BBCH (flowering), and irrigation cut-off in 75 BBCH (capsule maturity) as the main factors. Sub-plot included a combination of three factors: two genotypes Oltan and Dashtestan-2, foliar application of Mg-nano in two levels non-application and foliar application (2 g/L) in 65 BBCH stage and foliar application of chitosan in three levels: non-application, foliar application of 4.8 g/L in 65 BBCH stage and 6.4 g/L in 75 BBCH stage. Results and discussionThe results showed that the irrigation up to 65 BBCH caused a reducing 28.08, 20.8, 53.05, 54.04 and 23.10% in the average traits of number of capsules, 1000-grain weight, grain yield, LAI, and oil percentage content in compared to the normal irrigation treatment (control). The highest grain yield was achieved in the application of Mg-nano-fertilizer under normal irrigation in Dashtestan-2 variety with a mean of 1188.2 kg/ha, which 16.3% increased in compared to the control treatment. The highest oil percentage was observed in the application of Mg-nano under normal irrigation was in Dashtestan-2 variety with an average of 50.38%, which 3.5% increase in compared to the control treatment. The highest grain yield was achieved in the application of Mg-nano-fertilizer under normal irrigation in Dashtestan-2 variety with a mean of 1188.2 kg/ha, which 16.3% increased in compared to the control treatment. The highest oil percentage was observed in the application of Mg-nano under normal irrigation was in Dashtestan-2 variety with an average of 50.38%, which 3.5% increase in compared to the control treatment. ConclusionFinally, foliar application of Mg-nano and chitosan (4.8 g/L) under water stress conditions were able to compensate for damage and to modify the negative effects of stress.

TANNIN CONTENT OF ARECA NUT AFTER NANOCHITOSAN COATING ON DRYING METHODS

Objective: This research aimed to investigate the effect of nanochitosan (NC) coating in different drying methods on the tannin content of areca nut.
 Methods: Areca nut was obtained from the seed of Duncan’s multiple range test (DMRT). Chitosan was isolated from shrimp shell waste through deproteination, demineralization, depigmentation, and deacetylation. NC was made using the ionic gelation method. The treatment used three levels of concentrations; K0 (uncoated-control), K1 (NC 1.5 g/l), and K2 (NC 3 g/l), and it employed two drying methods, namely, P1 (sun drying) and P2 (oven drying). Tannin content measured by spectrophotometry method. The data were analyzed by analysis of variance univariate two factors and followed by Duncan’s Multiple Range Test (DMRT).
 Results: The result showed that the NC-coated areca nut has a higher tannin content compared with the uncoated areca nut. The level of NC concentration had a significantly different effect (p 0.02 < 0.05), whereas the drying method gave no significant effect (p 0.81 > 0.05) and there was no interaction between NC concentration and drying method (p 0.89 > 0.05 ). The tannin content in areca nut in K0 (control) treatment was 17.44%, K1 (NC 1.5 g / l) was 18.11%, and K2 (NC 3 g / l) was 18.83%.
 Conclusion: Application of NC as a coating on areca nut can prevent the loss of tannin throughout the drying process. Dried areca nut with K2 treatment (NC 3 g/l) has the highest tannin content as it reaches18.83%.

Comparison between the Effect of Nano Chitosan and Fabcomic Insecticide against Tetranychus urticae (Acari: Tetranychidae)

Comparison between the Effect of Nano Chitosan and Fabcomic Insecticide against Tetranychus urticae (Acari: Tetranychidae)

Comparison between the Effect of Nano Chitosan and Fabcomic Insecticide against Tetranychus urticae (Acari: Tetranychidae)

Toxicity of nano chitosan and fabcomic acaricide were studied under laboratory conditions against adults of spider mite, Tetranychus urticae Koch. Also, LC50 and LC90 of each treatment were determined. The obtained results revealed that fabcomic acaricide was more effective in controlling T. urticae than nano chitosan but it caused pollution for all living organisms as well as to the environment while nano chitosan was more save for both, humans and plants. LC50 for fabcomic acaricide and nano chitosan was 0.1 and 801.04 ppm, respectively. However, LC90 was 1.66 and 5746.09ppm for fabcomic acaricide and nano chitosan, respectively.

Effect of Nano-Chitosan on Early Blight Disease of Tomato

Effect of Nano-Chitosan on Early Blight Disease of Tomato

Chitosan and Nano-Chitosan Efficacy Against the Land Snails Eobania vermiculata and Monacha obstructa (Muller) Under Laboratory Conditions

The effect of chitosan and nano-chitosan on the land snails Eobania vermiculata and Monacha obstructa was investigated. Under laboratory conditions, the LC50 values recorded, 8.6%. and 6.9 % for E. vermiculata and M. obstructa treated with chitosan, respectively. On the other hand, snails treated with different concentrations of nano-chitosan, resulted in LC50 values of 1.4% and 0.16% for E. vermiculata and M. obstructa, respectively. The effects of both compounds on certain biochemical parameters were recognized. When chitosan and nano-chitosan were applied at the LC50 level, the total protein activities showed significant increase compared to control for E. vermiculata. The same compounds showed a significant decrease in the level of total protein for M. obstructa . Natural chitosan increased the level of total lipid from 32.5 to 52.5 g/dL after the treatment. While nano-chitosan increased it up to 78.33 g/dL for E. vermiculata. Also, natural chitosan increased the total lipid from 25.0 to 37.5 g/dL for M. obstructa compared to an increase of 52.5g/dL attained by the effect of nano-chitosan particles.

Effect of Nano-chitosan on Vegetative Growth, Fruiting and Resistance of Malformation of Mango

Effect of Nano-chitosan on Vegetative Growth, Fruiting and Resistance of Malformation of Mango

The Effect of Nanochitosan Loaded with Antibiotics on Response of Helicobacter Pylori

The Effect of Nanochitosan Loaded with Antibiotics on Response of Helicobacter Pylori

Effect of Nanochitosan on Structural, Thermal and Electrochemical Properties of Poly Ether Based Polymer Electrolytes Complexed with Lithium Bis(Trifluoromethanesulfonyl Imide)

In this research, nanocomposite membranes were prepared using polyethylene oxide as polymer host, lithium bis(trifluoromethanesulfonyl imide) as salt and nanochitosan as inert filler. Initially nanochitosan was prepared from chitosan by ionotropic gelation method. Nanocomposite membranes were prepared by solvent free membrane hot press technique. The prepared membranes possessed excellent physico-chemical properties. The complexing behavior and structural reorganization in polymer electrolytes were analyzed by XRD and FT-IR analyzes. The decrease in crystalline nature of polymer electrolytes was confirmed by DSC analysis. The electrolyte S3 possessed high conductivity and attained a maximum of 10-3.01S/cm.