As such, changes in particle surface properties are often important in determining whether the particles are appropriate for use in various applications. Nanoparticles can be manipulated or modified to fulfill a specific, engineered purpose, partially through changing the surface chemistry or surface coating of the particle. Nanotechnology is an increasingly integral part of modern medicine, predominantly in the fields of cell labeling, gene and drug delivery, molecular imaging, and biosensors. These findings suggest that this technique is suitable for studying particle surface changes and perhaps can be used to dynamically study reaction kinetics at the particle surface. Furthermore, we found that altering the salt concentration of the suspension solution affected the velocity of particles due to the change of dielectric constant and viscosity of the solution. Therefore, we report here the use of near-field light scattering using nanophotonic force microscopy (using a NanoTweezer TM instrument, Halo Labs) to determine the changes that occurred in hydrated particle characteristics, which is accompanied by an analytical model. The local scattering intensity is correlated with the distance between the particle and waveguide, which is affected by the size of the particle (coating thickness) as well as the interactions between the particle and waveguide (related to the zeta potential of the coating). Changes in particle size and zeta potential were indirectly assessed via differences between PEG-SPIOs and IPC-SPIOs in particle velocity and scattering intensity using near-field light scattering. Here we explored the modification of the surface of poly(ethylene glycol)-coated superparamagnetic iron oxide nanoparticles (PEG-SPIOs) with the synthetic pseudotannin polygallol via interpolymer complexation (IPC). The effect of nanoparticle surface coating characteristics on colloidal stability in solution is a critical parameter in understanding the potential applications of nanoparticles, especially in biomedicine. #VELS #VISTAS #velspallavaram #besteducation #Colleges #university #collegesinchennai #topcollegesinindia #education #chennaieducation. , Vice President of Vels Group Of Institutions congratulated the winners and participants.Ĭongratulating all the winners for their exceptional exhibition of talents and bagging the prizes! Nithish from Department of Electronics and Communication Engineering have won second and third prizes and were awarded cash prize of Rs 5000/- and Rs 3000/- respectively along with trophies. Avinash from the Department of Computer Science and Engineering and G. Monisha from the Department of Biomedical Engineering have won the first prize and awarded a cash prize of Rs 10000/- and trophy. Students from different streams of engineering exhibited their 45+ innovative projects to Judges and Visitors. VISTAS conducted their annual Intra-University Tech Expo “AVISHKAR 2022” on at their Shivalaya Auditorium, Pallavaram campus. Arts & Science, Physiotherapy, Law and Pharmacy.School of Management Studies and Commerce.School of Hotel and Catering Management.

Dynamic light scattering nanoparticles