Water lily (Eichhornia crassipes) generation of electricity through photosynthesis

Generate electricity through the photosynthesis of the water lily; releasing electrons at their roots, to be collected by the anode (copper wire) and cathode (metallic foil) conductors, to transport them through copper conductors and be able to use them, in light energy, in a 3-volt led. Plastic containers on average have a higher voltage, compared to metal containers, on average they reached 0.747 volts, R6 was the one with the highest voltage production and the lowest 0.518 volts on average was R4. The voltage produced by metal containers, which did not reach the maximum values of plastic containers, the highest average is R7, with a voltage of 0.576 volts and the lowest of all averages is 0.216 volts R10, On 09/17/2019 at 4:45 PM, the highest average voltage of 7.11 volts was recorded.

Performance of Strain Gauge in Strain Measurement and Brittle Coating Technique

The strain gauge system consists of a metallic foil supported in a carrier and bonded to the specimen by a suitable adhesive. Previous chapters discussed the construction, configuration, and the material of the strain gauge. The strain gauge has advantages over the other methods. A strain gauge can give directly the strain value as output. However, in optical methods, it is required to interpret the results. It is also required to be aware that the strain gauge technology is majorly used, and it can also be easily wrongly used. Hence, it is required to obtain the proper knowledge of the strain gauge to get the full benefit of the technology. This chapter covers the majorly on the performance of the strain gauge, its temperature effects, and strain selection. Further, this chapter also covers the brittle coating technique that is used to decide the position of the strain gauge in the applications.

Measurement of antibacterial properties of foil-backed electrospun nanofibers

Current methodologies for evaluation of antibacterial properties of traditional textiles are not applicable to foil-backed, poorly-absorbent electrospun nanofiber materials, since existing test methods require absorbent fabrics. Since electrospun nanofibers are adhered to the foil backing only by electrostatic interactions, methods used to evaluate antibacterial properties of surfaces cannot be used because these protocols cause the nanofibers to lift from the foil backing. Therefore, a novel method for measurement of the antibacterial properties of electrospun metallic foil-backed nanofiber materials was developed. This method indicated that acetate-based nanofibers manufactured to contain 5 to 30 weight percent of cold-pressed hemp seed oil or full-spectrum hemp extract inhibited the growth of Staphylococcus aureus in a dose-dependent manner, from 85.3% (SEM = 2.2) inhibition to 99.3% (SEM = 0.15) inhibition, respectively. This testing method represents an advanced manufacturing prototype procedure for assessment of antibacterial properties of novel electrospun, metallic foil-backed nanofiber materials.

‘Painting’ nanostructured metals—playing with liquid metal

We show that materials scientists can ‘paint’ nanostructured metal on a metallic foil using liquid metal (gallium) as the paint.