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Prof. Amit Nag 

Professor
Department of Chemistry

Plasmonics, Fluorescence and Laser Spectroscopy, Surface Enhanced Raman Spectroscopy
B103, Department of Chemistry
Birla Institute of Technology & Science, Pilani
Hyderabad Campus
Jawahar Nagar, Kapra Mandal
Dist.-Medchal-500 078
Telangana, India

Publications

Book/Book Chapter:

2. A. Nag, M. Chakravarty, Zubair K. Baig,Detection of multiple metal ions using a single fluorophore”,LAMBERT Academic Publishing, 2019, ISBN: 978-613-3-99944-2.

1. A. Nag, S. Pawar, D. P. Damera, Book Chapter:Carbon dots as smart optical sensors” in the edited book “Carbon Dots in Analytical Chemistry”, Elsevier, 2022, ISBN: 9780323983501.
 

Journal articles: 

51. Kaja, S.; Mathews, A.V. and Nag, A.* "Dual-Functional Nano-Photosensitizers: Eosin-Y Decorated Gold Nanorods for Plasmon-Enhanced Fluorescence and Singlet Oxygen Generation" RSC Advances 2024 (Just accepted).

50. Kaja, S. and Nag, A.* "Ag-Au-Cu Trimetallic Alloy Microflower: A Highly Sensitive SERS Substrate for Detection of Low Raman Scattering Cross-Section ThiolsLangmuir 2023, 39(46), 16562.49. Lazarus, R.; Kothari, R; Kaja, S.; Venuganti, V. K.* and Nag, A.*"Designing a Nanothermometer using Gel-to-Liquid Phase Transition Property of Hybrid Niosome" Analyst (Communication) 2023, 148, 3169 (DOI: 10.1039/D3AN00557G).

48. Sharma, P.;Naithani, S.; Layek, S.; Kumar, A.; Rawat, R.; Heena Kaja, S.; Nag, A.; Kumar, S.* and Goswami, T."Development of low-cost copper nanoclusters for highly selective “turn-on” sensing of Hg2+ ions" Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2023, 297, 122697. 

47. Kaja, S.; Mathews, A.V.; Venuganti, V. K. and Nag, A.* "Bimetallic Ag-Cu alloy SERS substratesas label-free biomedical sensor: femtomolar detection of anticancer drug Mitoxantrone with multiplexingLangmuir 2023, 39(15), 5591 (DOI: 10.1021/acs.langmuir.3c00525)

46. Kaja, S. and Nag, A.* "Bimetallic SERS substrates for the detection of trace levels of analytes: A mini-reviewAsian Journal of Physics (invited article) 2022, 31 (9-10), 913

45. Nag, A.* "Biocompatible Nanomaterials for Drug Delivery and Cancer Theranostics"Journal of Clinical & Experimental Dermatology Research 2022, 13, 7.

44. Kaja, S.; Mukherjee, A.; Chakravarty, M. and Nag, A.* "Identifying high performance photosensitizer with simultaneous enhancement in fluorescence and singlet oxygen generation, from ‘(Ag/Au)-aggregation-induced emission-active fluorogen’theranostic nanoparticles" Colloids and Surfaces A 2022, 649, 129448.

43. Damera­, D. P. and Nag, A.* "Exploring the membrane fluidity of phenyl boronic acid functionalized polymersomes using FRAP technique and application in pH sensitive release of curcuminNew Journal of Chemistry 2022,46, 11329.

42. Kaja, S.and Nag, A.* "Bimetallic Ag-Cu alloy microflowers as SERS substrates with single molecule detection limit" Langmuir 2021, 37(44), 13027.

 41. Damera­, D. P.; Krishna, V.;Venuganti, V. K.* and Nag, A.* "Red-emitting carbon nanoparticles with unprecedented singlet oxygen generation efficiency for cancer theranostics" Journal of Photochemistry & Photobiology, B: Biology 2021,225, 112335.

40. Damera­, D. P.and Nag, A.* "Tuning the phase transition temperature of hybrid Span60-L64 thermoresponsive niosomes: insights from fluorescence and Raman spectroscopy" Journal of Molecular Liquids 2021, 340, 117110.

39. Nag, A.* and Kaja, S."Unprecedented SERS efficiency of bimetallic Ag-Cu alloy microflowers leading to single molecule detection" at the Frontiers in Optics and Photonics 2021 (FOP-21), IIT Delhi, held online during September 24-27, 2021 (Conference paper).

38. Goswami, T.*; Bheemaraju, A.; Kataria, A.; Nag, A.; Sravani, K.; Mishra, S and Mishra, A.K.* "Highly Fluorescent Water-Soluble PTCA Incorporated Silver Nano-cluster for Sensing of Dopamine"Materials Chemistry and Physics 2021,259, 124086.

37. Damera­, D. P.; Manimaran, R.Venuganti, V. K. and Nag, A.*"Green synthesis of Full-Color fluorescent Carbon Nanoparticles from Eucalyptus Twigs for sensing the Synthetic Food Colorant and Bioimaging"ACS Omega 2020, 5, 19905.

36. Kaja, S., Damera­, D. P. and Nag, A.*  "A metal-enhanced fluorescence sensing platform for selective detection of picric acid in aqueous mediumAnalytica Chimica Acta 2020,1129, 12.

35. Pawar, S., Kaja, S. and Nag, A.* "Red-emitting carbon dots as dual sensor for In3+and Pd2+ in water"ACS Omega 2020, 5, 8362.

34. Damera­, D. P.; Kaja, S.;Janardhanam, L. S. L.;Alim, S.; Venuganti, V. K. and Nag, A.* "Synthesis, detailed characterization and dual drug delivery application of BSA loaded Aquasomes"ACS Applied Bio Materials 2019, 2, 4471 - 4484.

33. Pawar, S., Ravi Teja, B., Nagarjuna, R., Ganesan, R.* and Nag, A.* "Probing the surface composition effect of silver-gold alloy in SERS efficiency" Colloids and Surfaces A 2019, 578, 123638.

32. Pawar, S., Uday Kumar, T., Bhattacharya, A. andNag, A.* "Functionalized Chitosan-Carbon Dots: A Fluorescent Probe for Detecting Trace Amount of Water in Organic Solvents" ACS Omega 2019, 4, 11301.

31. Pawar, S., Bhattacharya, A. and Nag, A.* "Metal Enhanced Fluorescence Study in Aqueous Medium by Coupling Gold Nanoparticle and Fluorophore Using a Bilayer Vesicle Platform" ACS Omega 2019, 4, 5983.

30. Uday Kumar, T., Pawar, S., Nag, A. and Bhattacharya, A.* "Selective sensing of Iron by pyrrolo[2,3-c]quinolines" J. Fluoresc. 2019, 29(1), 271.

29. Damera, D. P., Venuganti, V.K. and Nag, A.* "Deciphering the role of bilayer of a niosome towards controlling the entrapment and release of dyes" ChemistrySelect 2018,3, 3930.

28. Pawar, S.; Uday Kumar, T.; Trivedi, P.;Ghosh, B.; Bhattacharya, A. and Nag, A.*  "FRET Mediated Zn2+ Sensing in Aqueous Micellar Solution: Application in Cellular Imaging and Molecular Logic Gate" ChemistrySelect 2017, 2, 8731.

27. Zubair Khalid Baig,M.;Pawar,S.; Tulichala,R. N. P.;NagA.* and  Chakravarty, M.* "A single fluorescent probe in selective and systematic sensing of multiple metal ions: focus on detection and bio-imaging of Pd+2"  Sensors and Actuators B 2017, 243, 226.

26. Nag, A*;  Pawar, S and Bhattacharya, A." Gold nanoparticle induced enhancement of molecular fluorescence for Zn2+ detection in aqueous niosome solution" 13th International Conference on Fiber Optics and Photonics, OSA Technical Digest, W2D.1, 2016. (Invited paper) 

25. Pawar, S.; Akula, M.; Labala, S.;Venuganti, V.K.; Bhattacharya, A. and Nag, A.* "Zn2+ sensing in aqueous micellar solution using modified bipyridine-based “Turn-On” fluorescent probes and its application in bioimaging" ChemPlusChem 2016, 81, 1339.

24. Akula, M.; Yadagiri T.Nag, A. and Bhattacharya, A.* "Selective detection of fluoride using fused quinoline systems: effect of pyrroleRSC Advances2015557231.

23. Akula, M.; El-Khoury, P. Z.; Nag, A.* and Bhattacharya, A.* "Selective Zn2+ sensing using a modified bipyridine complex" RSC Advances 2014425605.

From Post doctoral work:

22. Banik, M.; El-Khoury, P. Z.; Nag, A.Rodriguez-Perez, A.; Guarrotxena, N.; Bazan, G. C. and Apkarian, V. A.Surface enhanced Raman trajectories on a single nanodumbbell: The transition from field to charge transfer plasmons during the fusion of the spheres” ACS Nano 20126(11)10343.

21Banik, M.; Nag, A. ;El-Khoury, P.;Perez-Rodruigez, A; Guarrotxena, N; Bazan, G.C. and Apkarian, V. A. “Surface-Enhanced Raman Scattering of a Single Nanodumbbell: Dibenzyldithio-Linked Silver Nanospheres" Journal of Physical Chemistry 2012116(18),

 

From PhD work: 

20. Nag, A. and Goswami, D. “Effect of linear chirp on femtosecond two-photon processes in solution”Journal of Spectroscopy and Dynamics 2012,2, 11.

19. Goswami, D and Nag, A. “Exploring control parameters of two-photon processes in solutions”Journal of Chemical Science 2012,124(1), 281.

18. Nag, A. and Goswami, D. “Polarization induced control of single and two-photon fluorescence”Journal of Chemical Physics 2010,132, 154508(Selected for the May 2010 issue of Virtual Journal of Ultrafast Science)

17. Nag, A.; Chapekar, P and Goswami, D. “Applying genetic algorithm optimization to a folded geometry accouso-optic modulated spatial pulse shaper”Review of scientific Instruments 2010,81, 013101. (Selected for the February 2010 issue of Virtual Journal of Ultrafast Science)

16. Nag, A.; Ashtekar, S and Goswami, D. “Attempt to control femtosecond two-photon processes in solutionKiran- A Bulletin of the Indian Laser Association2010, 21(2), 11.   

15. Ray, D.; Nag, A.; Jana, A.; Goswami, D.; Bharadwaj, P. K. “Coumarin derived chromophores in the donor–acceptor–donor format that gives fluorescence enhancement and large two-photon activity in presence of specific metal ions”Inorg. Chim. Acta 2010,363, 2824.

14. Ray, D.; Nag, A.; Goswami, D.; Bharadwaj, P. K. “Acyclic donor-acceptor-donor for large enhancement of two-photon absorption cross section in presence of Mg(II), Ca(II) or Zn(II) ions”,J. Luminescence 2009,129, 256.

13. Nag, A. and Goswami, D. “Solvent effect on Two-photon absorption and fluorescence of Rhodamine dyes,”Journal of photochemistry and photobiology A 2009,206, 188.

12. Nag, A.; De, A.K; Goswami, D. “Two-photon cross section measurements using an optical chopper: z-scan and two-photon fluorescence schemes”Journal of Physics B 2009,42, 065103.

11. Jana, A.; De, A. K.; Nag, A.; Goswami, D.; Bharadwaj, P. K. “Diaza-18-crown-6 based chromophores for modulation of two-photon absorption cross-section by metal ions,” J. Organometallic Chem. 2008,693, 1186.

10. Nag, A.; De, A. K; Goswami, D. “A sensitive technique for two-photon absorption measurements: towards higher resolution microscopy,”Journal of Physics: Conf. Ser.2007,80, 012034.

9. Kurian, P.A; Vijayan,C; Nag, A.; Goswami, D. “Nonlinear optical properties of free standing films of PbS quantum dots in the nonresonant femtosecond regime,”Proc. SPIE. 2007,6639, 66390M.

8. Das, S.; Nag, A.; Sadhu, K.K.;Goswami, D.; Bharadwaj, P. K. “Metal induced enhancement of fluorescence and modulation of two-photon absorption cross-section with a donoracceptor-acceptor-donor receptor,”J. Organometallic Chem. 2007,692, 4969-4977.

7. Kumar, R.; Misra, R.; Chandrashekar, T. K.; Nag, A.; Goswami, D.; Suresh, E.; Suresh,C.H. “One-pot synthesis of core-modified rubyrin, octaphyrin, and dodecaphyrin: characterization and nonlinear optical properties,”Eur. J.Org. Chem. 2007,27, 4452-4562.

6. Nag, A.; Singh, S; Goswami, D. “Structure property correlations in alcohols through twophoton absorption cross-section measurements”Chem. Phys. Lett. 2006, 430,420.

5. Das, S.; Nag, A.; Goswami, D.; Bharadwaj, P. K. “Zinc(II) and copper(I) mediated large two-photon absorption cross-sections in a bis- cinnamaldiminato schiff base,”J. Am. Chem. Soc. (Communication) 2006,128, 402.

4. Misra, R.; Kumar, R.; Chandrashekar, T. K.; Nag, A.; Goswami, D.“Modified 22π smaragdyrins with large two-photon absorption cross-sections: a structure function correlation”Org. Lett. (Letter) 2006,8, 629.

3. Rath, H.; Prabhuraja, V.; Chandrashekar, T. K.; Nag, A.; Goswami, D.; Joshi, B. S. “Aromatic core modified decaphyrins with the largest two-photon absorption crosssections: syntheses and characterization,”Org. Lett. (Letter) 2006,8, 2325.

2. Misra, R.; Kumar, R.; Chandrashekar, T. K.; Suresh, C.H.; Nag, A.; Goswami, D. “22π smaragdyrin molecular conjugates with aromatic phenylacetylenes and ferrocenes: syntheses, electrochemical and photonic properties,”J. Am. Chem. Soc. 2006,128,16083.

1. Rath, H.; Sankar, J.; PrabhuRaja, V.; Chandrashekar, T. K.; Nag, A.; Goswami, D.“Core modified expanded porphyrins with large third-order nonlinear optical response,”J. Am. Chem. Soc. (Communication) 2005,127, 11608.