The present work aimed to estimate the phytochemical profile and antimicrobial activity of medicinal plant Ruellia patula (L.) against human pathogenic bacteria. Medicinal plants are the effective source for the development of drug against several diseases. Nowadays, medicinal plants were used to treat most diseases among humans because of its medicinal value. In Ayurveda and Siddha, many medicinal plants have been recommended for the management of common diseases. The extraction was done by using different solvent such as ethanol, methanol and acetone by using standard procedures. The antibacterial assay was carried by using agar well method with different organisms and also antifungal activity against Aspergillus niger using disc diffusion method. The ethanolic extract of R. patula L. (0.4 mg/mL) showed higher antibacterial activity against Gram positive bacteria and Gram negative bacteria. In the antifungal activity also ethanolic extract shows highest activity compare to other extract. From the present work, we conclude that the ethanolic extract of plant R. patula L. have potential of antibacterial activity and antifungal activity because of its secondary metabolites in the plant which responsible for biological activities. Due to the presence of phyto-constituent in the plant extract may control the bacterial growth either in high concentration/long durations and it may have the ability to control the human pathogenic organisms.
In recent years high brightness LED lamps are opening up new opportunities of cost and energy saving towards variety of lighting applications. However they also require LED driver and control circuit compare to gas filled lamps when operating at input AC mains. Thus an efficient driving
circuit is essential for its optimal performance. In this paper a remote monitoring and controlling system based wireless sensor network is implemented for LED lighting according to the user’s state, which basically controls illumination intensity of a lighting device according to object
movement and brightness of surrounding. Then this system can extend communication capability to the existing street lighting system through the ZigBee and this idea will be very useful for subway, industries and household application to effectively reduce the power consumption.
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