A review of some important Ayurvedic medicinal vegetable plants

Medicinal plants have been used from the ancient civilization of the society. Traditional Indian medicine (Ayurvedic) is becoming increasingly popular, with much chronic condition responding to it well. From thousands of years these plants have been used to treat and prevent many types of disease along with epidemic. Every portion of the plant has medicinal properties. A detailed knowledge of the action of food spices and medicinal plant is need in order to understand their potential influence fully. The Ayurvedic medicine are based on natural herbal materials, majority of regular cultivated as well as wild vegetables have medicinal property and can be used to treat common ailments. In the present paper attempts were made on ethno-medicinal properties of some cultivated and wild vegetables from, published research articles and books. On the basis of available ethno-botanical information and Ayurvedic used of vegetables through published literature studies. It observed that 24 vegetables from 12 families. These may be cultivated or wild are very useful. Various parts of the vegetables that is root, stem, bark, leaves, flowers, fruits or seeds may be used in Ayurvedic treatment for curing to the diseases. The vegetables plant part being used for both internal and external. Different disease like, diabetes, rheumatism, dysentery, dyspepsia, gastritis, constipation, urinary disorders, are mostly treated by these cultivated as well as wild vegetables. These are easily available in natural habitat cheap and excellent source of nutrients but it is needed to understand the Ayurvedic prospective of these vegetables

Efficacy of local anaesthetic cocktail infiltration in a total knee replacement: a prospective, randomized study

Background: The aim of this study is to assess the efficacy of local anaesthetic cocktail infiltration in pain management during a total knee arthroplasty.Methods: In this study we had 25 patients each in study and control group. The study group was infiltrated with the local anesthetic cocktail just before final implantation. Pain was documented by a visual analogue scale in a double blinded manner. Statistical significance was calculated using an unpaired “t” test.Results: In study group, pain levels were significantly lower as compared to control group for the first 48 hours after surgery with a ‘p’ value of 0.0224 (<0.05). The need of intravenous tramadol for breakthrough pain on the second day was significantly lower in study group as compared to control group with a ‘p’ value of 0.033(<0.05).Conclusions: This study shows that the local high volume anaesthetic infiltration is effective in reducing immediate postoperative pain and the need of IV opioids for the first 48 hours after surgery

A review on impact of physical factors on development of post-harvest fungal diseases of fruits

This review highlights on impact of Relative Humidity (R.H.) and temperature on disease severity of fungal diseases of fruits. At high temperature, low temperature and low humidity, fungal diseases are not developed in fruits

Inhomogeneous vortex-state-driven enhancement of superconductivity in nanoengineered ferromagnet-superconductor heterostructures

Thin film heterostructures provide a powerful means to study the antagonism between superconductivity (SC) and ferromagnetism (FM). One interesting issue in FM-SC hybrids which defies the notion of antagonistic orders is the observation of magnetic field induced superconductivity (FIS). Here we show that in systems where the FM domains/islands produce spatial inhomogeneities of the SC order parameter, the FIS can derive significant contribution from different mobilities of the magnetic flux identified by two distinct critical states in the inhomogeneous superconductor. Our experiments on nanoengineered bilayers of ferromagnetic CoPt and superconducting NbN where CoPt/NbN islands are separated by a granular NbN, lend support to this alternative explanation of FIS in certain class of FM-SC hybrids.Comment: 5 figure

Formation of rectifier with gold nanoclusters

Gold nanoclusters encapsulated with organic molecules are of great interest for its possible applications in the fields of molecular electronics, catalysis and medical science. Here we demonstrate that monolayer and bilayer films of thiol-capped gold nanoclusters can exhibit diode-like properties provided controlled spatial asymmetry exist between two tunnel junctions used to connect a thiol capped gold nanoclusters. Current-voltage characteristics of this rectifier were obtained from conducting probe atomic force microscopy measurements and also from conventional two probe resistance measurements. Systematic x-ray reflectivity and atomic force microscopy measurements were carried out to characterize the spatial asymmetry introduced by a monolayer of fatty acid salt gadolinium stearate used to deposit thiol-capped gold nanocluster molecules on hydrophilic SiO2-Si(001) substrate by Langmuir Blodgett technique. This information was used to explain prominent rectification observed in these nano-structured films.Comment: 13 pages, 3 figure

A single molecule switch based on two Pd nanocrystals linked by a conjugated dithiol

Tunneling spectroscopy measurements have been carried out on a single molecule device formed by two Pd nanocrystals (dia, $\sim$5 nm) electronically coupled by a conducting molecule, dimercaptodiphenylacetylene. The I-V data, obtained by positioning the tip over a nanocrystal electrode, exhibit negative differential resistance (NDR) on a background M-I-M characteristics. The NDR feature occurs at $\sim$0.67 V at 300 K and shifts to a higher bias of 1.93 V at 90 K. When the tip is held in the middle region of the device, a coulomb blockade region is observed ($\pm\sim$0.3 V).Comment: Accepted in Praman

Optimizing growth conditions for electroless deposition of Au films on Si(111) substrates

Electroless deposition of Au films on Si(111) substrates from fluorinated-aurate plating solutions has been carried out at varying concentrations, deposition durations as well as bath temperatures, and the resulting films were characterized by X-ray diffraction, optical profilometry, atomic force microscopy and scanning electron microscopy. Depositions carried out with dilute plating solutions (<0.1 mM) at 28°C for 30 min produce epitaxial films exhibiting a prominent Au(111) peak in the diffraction patterns, while higher concentrations or temperatures, or longer durations yield polycrystalline films. In both epitaxial and polycrystalline growth regimes, the film thickness increases linearly with time, however, in the latter case, at a rate an order of magnitude higher. Interestingly, the surface roughness measured using atomic force microscopy shows a similar trend. On subjecting to annealing at 250°C, the roughness of the film decreases gradually. Addition of poly (vinylpyrrolidone) to the plating solution is shown to produce a X-ray amorphous film with nanoparticulates capped with the polymer as evidenced by the core-level photoelectron spectrum. Nanoindentation using AFM has shown the hardness of the films to be much higher (∼2.19 GPa) than the bulk value

Giant single crystalline Au microplates

Single crystalline Au(111) surface is the most sought after platform for studying molecular and other inter-esting phenomena. Here we report the synthesis of giant Au(111) single crystalline microplates along with their prototype applications. The single-crystal surfaces are atomically flat and possess areas extending over ∼100,000 μm2. The synthesis method is simple involv-ing a one-step thermolysis process, i.e. heating on a hot plate, of a alkylammonium salt, making the process flow easy and scalable for mass production. Other interesting anisotropic structures such as nanorods and microstars are also obtained by slightly varying the synthetic conditions