— This work is based off of our Bridge Monitoring System Project. There have been recent incidents of bridge collapses in India due to lack of proper maintenance and inspection, which is what this project is aims to find a solution for.... more
— This work is based off of our Bridge Monitoring System Project. There have been recent incidents of bridge collapses in India due to lack of proper maintenance and inspection, which is what this project is aims to find a solution for. The Project is a Bridge Monitoring System. The Bridge Monitoring System aims to monitor over long durations the vibrations propagated through suspension and possibly other similar bridges under load as well as no load conditions. It also aims to monitor the effects of weather (especially wind) on the bridges. The project makes use of a micro controller-based system to acquire, process, transmits, receive, display, graph and store data. The statistical data will reveal how the bridge responds under various conditions and graph the information in a meaningful way.
A B S T R A C T This manuscript investigates the bending vibration dynamic of a single walled carbon nanotube (SWCNT) based on the theory of non-local elasticity. Fundamental natural frequencies and mode shapes of the SWCNT are computed... more
A B S T R A C T This manuscript investigates the bending vibration dynamic of a single walled carbon nanotube (SWCNT) based on the theory of non-local elasticity. Fundamental natural frequencies and mode shapes of the SWCNT are computed by using a semi-analytical procedure called differential quadrature method (DQM), which gives accurate results in reference with the exact solution.
Resonant glassy nanostrings have been employed for the detection of biomolecules. These devices offer high sensitivity and amenability to large array integration and multiplexed assays. Such a concept has however been impaired by the lack... more
Resonant glassy nanostrings have been employed for the detection of biomolecules. These devices offer high sensitivity and amenability to large array integration and multiplexed assays. Such a concept has however been impaired by the lack of stable and biocompatible linker chemistries. Diazonium salt reduction-induced aryl grafting is an aqueous-based process providing strong chemical adhesion. In this work, diazonium-based linker chemistry was performed for the first time on glassy nanostrings, which enabled the bio-functionalization of such devices. Large arrays of nanostrings with ultra-narrow widths down to 10 nm were fabricated employing electron beam lithography. Diazonium modification was first developed on SiCN surfaces and validated by X-ray photoelectron spectroscopy. Similarly modified nanostrings were then covalently functionalized with anti-rabbit IgG as a molecular probe. Specific enumeration of rabbit IgG was successfully performed through observation of downshifts of resonant frequencies. The specificity of this enumeration was confirmed through proper negative control experiments. Helium ion microscopy further verified the successful functionalization of nanostrings.
