http://hdl.handle.net/2289/149 2026-05-25T10:07:30Z http://hdl.handle.net/2289/8740 Title: Mechanical responses of laser ablated axons of neuronal cells Authors: Mishra, Ashish Kumar Description: Open Access 2025-06-01T00:00:00Z http://hdl.handle.net/2289/8720 Title: Synthesis and structure of 4-[(2,3,4,5,6-penta­fluoro­phen­­oxy)carbon­yl]phenyl 4-(dodec­yl­oxy)benzoate Authors: Ahmed, Khaleel;  Bommalingaiah, B; Venkatareddy, G N; Srinivasa, H T; Devarajegowda, H C; Palakshamurthy, B S Abstract: In the title compound, C32H33F5O5, the dihedral angle between the central carbonyl­pheyl and peripheral perfluoro­phen­oxy and (dodec­yloxy)benzoate rings are 85.24 (2) and 78.98 (2)ο, respectively, indicating that the central ring is almost normal to both adjacent rings. The pendant C12 alkyl chain adopts an all-anti conformation. In the crystal, weak C—H⋯O hydrogen bonds connect the mol­ecules, forming S(7) chains propagating along the [010] direction. The packing is consolidated by C—F⋯π inter­actions and weak π–π stacking. The Hirshfeld surface analysis reveals that the major contributions to the two-dimensional fingerprint plots are from H⋯H (45%),F⋯H/H⋯F (18.5%), O⋯H/H⋯O (9.7%), C⋯H/H⋯C (9.4%), F⋯C/C⋯F (7.3%), and F⋯F (1.9%) contacts. An energy framework calculation shows that dispersion energy (–383.4 kJ mol−1) makes by far the largest contribution. Description: Open Access. 2026-05-01T00:00:00Z http://hdl.handle.net/2289/8717 Title: Unsymmetric naphthalene molecules synthesis and mesomorphic characterization Authors: Srinivasa, H T; Kumar, P Hareesh Abstract: Polymerizable alkyl chain-derived naphthalene-substituted at the terminal of unsymmetric bent-shaped organic molecules were synthesized and characterized for their mesomeric property. The chemical structures and mesomeric properties were confirmed by spectroscopic techniques, including FTIR, NMR, and microelemental analysis, POM, and DSC. Of the three compounds, two compounds exhibited smectic mesomarphism and the remaining one did not. The mesophase type is confirmed by X-ray diffraction studies of the liquid-crystal state. Description: Restricted Access. 2026-05-14T00:00:00Z http://hdl.handle.net/2289/8710 Title: Influence of Particle Size Polydispersity on Dynamical Heterogeneities in Dense Particle Packings Authors: Biswas, Rajkumar; Mutneja, Anoop; Karmakar, Smarajit; Bandyopadhyay, Ranjini Abstract: The dynamics of dense particle packings near the jamming transition is characterized by correlated particle motion. The growth of dynamical heterogeneities, or strong spatial variations in the motion of the constituent particles, is a hallmark feature of slow glassy dynamics. We report here a systematic confocal microscopy study that characterizes the cooperative dynamics of fluorescently-labeled colloidal particles in dense aqueous suspensions. Our experiments demonstrate that jammed particulate suspensions can be fluidized by increasing the width of the particle size distribution. Our molecular dynamics simulations, performed to numerically investigate the effects of continuous-size polydispersity (PD) on dense particle packing dynamics, show qualitative agreement with our experimental studies on the PD-dependence of the observed heterogeneity trends. Besides shedding light on the fundamental aspects of particle-scale dynamics at the jamming–unjamming transition, our findings are significant in the fabrication of commonly-encountered dense suspensions such as paints, cosmetics, and foods. Description: Restricted Access. 2026-04-07T00:00:00Z