Shyam Sir's Chemistry Class

For B.Sc., M.Sc., BS-MS, IIT-JAM, CSIR-NET, GATE, SET, BARC, NEET, JEE, etc.

Publications

2017

22. Tuning the Energy Transfer Efficiency between Ce³⁺ and Ln³⁺ Ions (Ln= Tm, Sm, Tb, Dy) by Controlling the Crystal Phase of NaYF₄ Nanocrystals. Venkata N. K. B. Adusumalli, Heramba V. S. R. M. Koppisetti, Sagar Ganguli, Shyam Sarkar and Venkataramanan Mahalingam*, Chem. Eur. J., 2017, 23, 994-1000. (Appeared as Frontispiece)

2016

21. Host-Guest and Electrostatic Interactions in Supramolecular Nanoparticle Clusters. Laura Graña-Suárez, Willem Verboom,* Richard J. M. Egberink, Shyam Sarkar, Venkataramanan Mahalingam, and Jurriaan Huskens*, Eur. J. Org. Chem, 2016, 33, 5511-5518

20. Versatile, fast, and easy one-step method for the synthesis of hydrophilic lanthanide-doped nanoparticles. Laura Graña-Suárez, Willem Verboom,* Shyam Sarkar, Venkataramanan Mahalingam, and Jurriaan Huskens*, ChemistrySelect, 2016, 1, 44068-40744.

19. A Luminescent Nanocrystal Marker for the Selective and Ultrasensitive Detection of Explosives. Shyam Sarkar,* Laura Graña-Suárez, Willem Verboom, Venkataramanan Mahalingam, and Jurriaan Huskens*, ChemNanoMat, 2016, 2, 805-809. (Appeared as Back Cover).

18. Glutathione-modified ultrasmall Ce³⁺ and Tb³⁺-doped SrF₂ nanocrystal for the fluorescent determination of Hg(II) and Pb(II) ions. Manjunath Chatti,# Shyam Sarkar,# and Venkataramanan Mahalingam* (# equal authorship), Microchimica Acta, 2016, 183,133–140.

17. Enhanced visible and nearinfrared emissions via Ce³⁺ to Ln³⁺ energy transfer in Ln³⁺-doped CeF₃ nanocrystals (Ln=Sm and Nd). Tuhin Samanta, Shyam Sarkar, Venkata NKB Adusumalli, and Venkataramanan Mahalingam*, Dalton Trans., 2016, 45, 78–84.

2015

16. Highly selective and sensitive detection of Cu²⁺ ions using Ce(III)/Tb(III)-doped SrF₂ nanocrystals as fluorescent probe. Shyam Sarkar, Manjunath Chatti, Venkata N. K. B. Adusumalli, and Venkataramanan Mahalingam*, ACS Appl. Mater. Interfaces, 2015, 7, 25702−25708.

15. Strong Single-Band Blue Emission from Colloidal Ce³⁺/Tm³⁺-Doped NaYF₄ Nanocrystals for Light-Emitting Applications. Venkata N. K. B. Adusumalli ^#, Shyam Sarkar,^# and Venkataramanan Mahalingam* (# equal authorship), ChemPhysChem, 2015, 16, 2312-2316.

14. Intense NIR emissions at 0.8 µm, 1.47 µm, and 1.53 µm from colloidal LiYbF₄:Ln³⁺ (Ln = Tm³⁺ and Er³⁺) nanocrystals. Shyam Sarkar, Venkata N. K. B. Adusumalli, Venkataramanan Mahalingam* and John A. Capobianco*, Phys. Chem. Chem. Phys., 2015, 17, 17577-17583.

2014

13. Highly luminescent colloidal Eu³⁺-doped KZnF₃ nanoparticles for the selective and sensitive detection of Cu(II) ions. Shyam Sarkar, Manjunath Chatti, and Venkataramanan Mahalingam*, Chem. Eur. J., 2014, 20, 3311-3316.

12. Strong Stokes and upconversion luminescence from ultrasmall Ln³⁺-doped BiF₃ (Ln= Eu³⁺, Yb³⁺/Er³⁺) nanoparticles confined in a polymer matrix. Shyam Sarkar, Armita Dash and Venkataramanan Mahalingam*, Chem. Asian J., 2014, 9, 447-451.

11. Microwave synthesis, photoluminescence and sunlight-driven photocatalytic activity of PVA functionalized Eu³⁺-doped BiOX (X = Cl, Br, I) nanoflakes. Armita Dash, Shyam Sarkar, Venkata NKB Adusumalli, and Venkataramanan Mahalingam*, Langmuir., 2014, 30, 1401-1409.

2013

10. Tuning the Crystalline Phase and Morphology of the YF₃:Eu³⁺ Microcrystals through Fluoride Source. Shyam Sarkar, Venkataramanan Mahalingam*, CrystEngComm., 2013, 15, 5750-5755.

9. Sub-5 nm Ln³⁺-doped BaLuF₅ Nanocrystals: A Platform to Realize Upconversion via Interparticle Energy Transfer. Shyam Sarkar, Brahmaiah Meesaragandla, Chanchal Hazra and Venkataramanan Mahalingam*, Adv. Mater., 2013, 25, 856-860. (Highlighted in Advances in Engineering)

8. Scaling Down the Size of the BaLnF₅ (Ln=La, Gd, Lu) Nanocrystals by Ln³⁺ Doping. Shyam Sarkar, Chanchal Hazra, and Venkataramanan Mahalingam*, Dalton Trans., 2013, 42, 63-66.

7. Eu³⁺ ions as an Optical Probe to Follow the Growth of Colloidal ZnO Nanostructures. Chanchal Hazra, Shyam Sarkar, Brahmaiah Meesaragandla and Venkataramanan Mahalingam*, Dalton Trans., 2013, 42, 11981-11986.

6. Ricinoleic acid-capped upconverting nanocrystals: An ideal capping ligand to render nanocrystals water dispersible. Brahmaiah Meesaragandla, Shyam Sarkar, Chanchal Hazra and Venkataramanan Mahalingam*, ChemPlusChem, 2013, 78, 1338-1342.

2012

5. Enhanced Quantum Efficiency for Dy³⁺ Emissions in Water Dispersible PbF₂ Nanocrystals. Shyam Sarkar, Chanchal Hazra, Manjunath Chatti, Vasanthakumaran Sudarsan, and Venkataramanan Mahalingam*, RSC Adv., 2012, 2, 8269-8272.

4. Bright Luminescence from Colloidal Ln³⁺-Doped Ca_0.72Y_0.28F_2.28 (Ln=Eu, Tm/Yb) Nanocrystals via Both High and Low Energy Radiations. Shyam Sarkar, Chanchal Hazra, and Venkataramanan Mahalingam*, Chem. Eur. J., 2012, 18, 7050-7054.

3. Sonication-Responsive Organogelation of a Tripodal Peptide and Optical Properties of Embedded Tm³⁺ Nanoclusters. Sibaprasad Maity, Shyam Sarkar, Poulami Jana, Suman Kumar Maity, Santu Bera, Venkataramanan Mahalingam* and Debasish Haldar*, Soft Matter., 2012, 8, 3960-3966.

2. Selective Reduction of Visible Upconversion Emissions Induced by Bi³⁺ in Tm³⁺/Yb³⁺-doped Y_0.89-xBi_xVO₄ Microcrystals. Chanchal Hazra, Shyam Sarkar and Venkataramanan Mahalingam*, RSC Adv., 2012, 2, 6926-6931.

2011

1. The Correlation of the Variation of the Chemical Reactivity and Site Selectivity of Benzene, Naphthalene and Azulene in terms of Density Functional Descriptors. Nazmul Islam, Monami Roy Chowdhury, Shyam Sarkar and Dulal C. Ghosh*, Int. J. Chem. Mod., 2011, 4, 71-85.

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