A fluorescent Zn2+ sensor 4-Methyl-2, 6-bis (((2H-chromen-2-one) imino) methyl) - phenol (MCP) based on the 6-aminocoumarin platform has been synthesized. This sensor acts as a highly sensitive and selective fluorescent ON-OFF probe and strong binding ability towards Zn2+ in DMSO/water 9:1, v/v (100 mM HEPES buffer; pH 7.4) at room temperature. Other common alkali, alkaline earth and transition metal ions have negligible interference. MCP used for bio-medical applications like living cell imaging at physiological pH using a confocal microscope.
- Page(s): 01-19
- Date of Publication: 16 November 2017
- Dr. Subarna GuhaFaculty of Chemistry, Central Institute of Plastic Engineering and Technology, Haldia, West Bengal, India
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Dr. Subarna Guha "Coumarin-Based Receptor for Recognition of Zn2+ Ion: Spectroscopic Evidence and Imaging Application in Living Cells" International Journal of Research and Scientific Innovation-(IJRSI) vol.4 issue 11, pp.01-19 2017
In this paper an approximate analysis of free convective flow of a non-Newtonian liquid between two co-axial cylinders has been carried out by two techniques. The equation of motion and energy including viscous dissipative terms are a pair of simultaneous non-linear ordinary differential equations. These equations under appropriate boundary conditions have been solved by the fourth order Runge-Kutta method and the back propagation neural networks method. The truncation errors involved in Runge-Kutta method of solution have been determined for one set of values of parameters and have been noted to be O(10-5). It has been observed that the elastic parameter has greater influence on the velocity field than on the temperature field. The effect of other parameters Pr (Prandatl number), E (Eckert number) etc. on flow and temperature field. The solution has been compared with the results obtained from the ANN model. This study so far reveals that skin friction, Nusselt number both at outer and inner cylinder can alternatively be modeled using the ANN within a reasonable accuracy. The results obtained from the ANN model are in very good agreement with the numerical results. The designed ANN model can be considered and useful alternative and one of the best techniques for solving non-Newtonian fluid flow problems.
- Page(s): 20-27
- Date of Publication: 16 November 2017
- U. K. Tripathy Retd. Professor & Head Dept of Mathematics, V.S.S.University, Burla-768017, Sambalpur, India
- S. M. PatelLecturer, Department of Mathematics, Sundargarh Engineering School, Sundargarh. 7700073, India
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U. K. Tripathy and S. M. Patel "Solution of Flow and Heat Transfer of an Elastico-viscous Liquid Between Two Co-axial Cylinders by Artificial Neural Network" International Journal of Research and Scientific Innovation-IJRSI vol.4 issue 11, pp.20-27 2017
A coumarin based efficient fluorescent probe selective for Hg2+ and Pb2+ ions was synthesized by coupling 6-amino-coumarin with 2-hydroxy naphthaldehyde. The probe and its metal complexes were well characterized by different spectroscopic techniques. The probe could detect up to 1µM Hg2+ and Pb2+ in aqueous methanol solution. The method showed linearity up to 10 μM for both Hg2+ and Pb2+. Interference from other common cations is almost negligible. The probe showed a strong binding to Hg2+ and Pb2+ ions as evident from their binding constant values (2.2×104 and 1.4×104 respectively) estimated by Benesi-Hildebrand method. Computational studies (Ab-initio, Hartree Fock) indicated a molecular level interaction between the probe and Hg2+ and Pb2+ ions.
- Page(s): 28-51
- Date of Publication: 16 November 2017
- Dr. Subarna Guha Faculty of Chemistry, Central Institute of Plastic Engineering and Technology, Haldia, West Bengal, India
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Dr. Subarna Guha "Coumarin Derived Efficient Fluorescent Probe for Trace Level Determination of Hg(II) and Pb(II) in Environmental Samples: Experimental and Computational Studies " International Journal of Research and Scientific Innovation-IJRSI vol.4 issue 11, pp.28-51 2017
Composites in today's world play an important role as they are being used as replacements for conventional materials. Aluminum is most widely used as base matrix in a composite because of its low density high strength property. To maintain similar density range along with improvement in material strength, Beryl (Beryllium aluminum cylcosilicate) is used as the reinforcement. The combination of aluminum and beryl enhances the material properties of aluminum without any drastic increase in the total mass density of the composite. Stir-casting technique has been employed to cast Al-Beryl MMC by varying beryl's percentage each time. Friction, wear, hardness and tensile tests has been carried out in this work. Taguchi method is performed on the results obtained from the experiments .Optimization of parameters using S/N ratio and ANOVA is carried out.
- Page(s): 52-56
- Date of Publication: 03 December 2017
- A KarthikM.Tech Student, Nitte Meenakshi Institute of Technology, Bangalore, Karnataka, India
- M Shivapratap Singh YadavAssistant Prof, Nitte Meenakshi Institute of Technology, Bangalore, Karnataka, India
- Reddappa H NAssociate Prof, Bangalore Institute of Technology, Bangalore, Karnataka, India
- Ravikumar MAssistant Prof, R L Jalappa Institute of Technology, Bangalore, Karnataka, India
 Aluminium Alloy-Based Metal Matrix Composites: A Potential Material for Wear Resistant Applications, Runa Dasgupta, ISRN Metallurgy(2012).  Tribological Properties of Aluminium 2024 Alloy– Beryl Particulate MMC’s, H.B. Bhaskar and Abdul sharief, Bonfring International Journal of Industrial Engineering and Management Science, Vol. 2, No. 4, December 2012.  Studies on Mechanical and Wear Properties of Al6061/Beryl Composites, Hosur Nanjireddy Reddappa, Journal of Minerals and Materials Characterization and Engineering, (2012)11, 704-708.  Application Of Taguchi Method For Optimization Of Process Parameters In Improving The Surface Roughness Of Lathe Facing Operation, Srinivas Athreya , Dr Y.D.Venkatesh-IRJES Vol 1, Nov 2012, pp. 13-19.
A Karthik, M Shivapratap Singh Yadav, Reddappa H N, Ravikumar M "Tribological Behavior of Al6061-Beryl Metal Matrix Composite and Optimization of Parameters using Taguchi Method” International Journal of Research and Scientific Innovation-IJRSI vol.4 issue 11, pp.52-56 2017