Indian Institute of Technology Ropar

About: Indian Institute of Technology Ropar is a education organization based out in Ropar, India. It is known for research contribution in the topics: Catalysis & Computer science. The organization has 1014 authors who have published 2878 publications receiving 35715 citations.

Urea based organic nanoparticles for selective determination of NADH

Abstract: Dipodal receptor 1 was synthesized using a single step procedure. The prepared receptor was subjected to organic nanoparticles (N1) and its sensor activities were tested with various biomolecules on the basis of changes in its photo-physical properties. Receptor responded selectively for reduced nicotineamide adenine dinucleotide; with a linear detection range upto 340 nM, having a detection limit of 96 nM, selective determination of NADH using N1 was not affected by the presence of any other potential interfering biomolecule or even in the presence of a higher concentration of salt.

Effect of a floating permeable plate on the hydroelastic response of a very large floating structure

Abstract: The effectiveness of a floating porous plate for mitigating the wave-induced structural response of a very large floating structure is investigated using the eigenfunction expansion method. The analysis is based on the assumption of a small-amplitude structural response of the very large floating structure and the linearized theory of water waves with the assumption that the elastic plate is floating freely on the free surface. The elastic plate is modeled using thin plate theory, and the wave past the porous plate is based on the assumptions of the generalized porous wavemaker theory. The horizontal plate reflects and dissipates a major part of the wave energy, which in turn reduces the wave-induced structural response of the structure. Wave reflection and dissipation increase in an oscillatory manner with an increase in the wavenumber associated with the incident wave, and a complementary trend is observed in the wave transmission, with the oscillatory trend diminishing for higher values of structural porosity. When the distance between the porous plate and floating elastic plate is an integer multiple of half the wavelength, a certain periodic oscillatory pattern occurs in the wave reflection, with complementary patterns being observed in the wave transmission and dissipation. The amplitude of the periodic oscillatory pattern in the wave reflection reduces with an increase in the length of the porous plate of moderate porosity. Moreover, the wave energy reflection and dissipation are greater in case of short compared with long waves for a floating porous plate of larger length. The elastic plate deflection and free surface elevation on the lee side of the floating elastic plate attenuate with an increase in the length of the porous plate for a moderate value of the structural porosity. The reflection coefficient and forces acting on the plate follow a similar pattern with variation of the distance between the porous plate and large floating structure, whilst the shear force and strain acting on the floating structure are complementary to the wave reflection and forces acting on the porous plate.

Highly sensitive and selective determination of Hg2+ by using 3-((2-(1H-benzo[d]imidazol-2-yl)phenylimino)methyl)benzene-1,2-diol as fluorescent chemosensor and its application in real water sample

Abstract: A new receptor 3-((2-(1H-benzo[d]imidazol-2-yl)phenylimino)methyl)benzene-1,2-diol (1) was synthesised and developed as a highly selective fluorescent chemosensor for the detection of Hg2+ in semi-aqueous media. The fluorescence of receptor 1 was dramatically and selectively quenched on complexation with Hg2+ ion with the detection limit down to 0.20 μM. The developed sensor was successfully applied for the determination of Hg2+ content in water samples. Density Functional Theory (DFT) calculations were performed to study the mechanistic behaviour behind the binding of Hg2+ with receptor 1.