Publications

 

2011

26. Ligand modulated parallel mechanical unfolding pathways of Maltose Binding Proteins (MBPs)

      Vasudha Aggarwal, S. Rajendra Kulothungan, M.M. Balamurali, S.R. Saranya, Raghavan Varadarajan, and Sri Rama Koti Ainavarapu*

     J. Biol.Chem. Vol 286, No. 32 (2011) p28056-28065. Link.

2009

25. Single-molecule force-clamp spectroscopy: Probing transition states of mechanically activated chemical reactions

      Sri Rama Koti Ainavarapu*

      ISRAPS Bulletin (2009)

2008

24. A Single-Molecule Perspective on the Role of Solvent Hydrogen Bonds in Protein Folding and Chemical Reactions

      Lorna Dougan, Sri Rama Koti Ainavarapu, Georgi Genchev, Hui Lu and Julio M. Fernandez

     Chem Phys Chem Vol. 9 (2008) p 2836-2847. pdf

23. Single-Molecule Force Spectroscopy Measurements of Bond Elongation during a Bimolecular Reaction

      Sri Rama Koti Ainavarapu*, Arun P. Wiita, Lorna Dougan, Einar Uggerud, and Julio M. Fernandez*

     Journal of American Chemical Society Vol. 130 (2008) p 6479-6487. pdf

Our mechanochemistry JACS paper has been mentioned in Research Highlights section of Nature (2008), 453, p261: “Disulphide dichotimies” pdf

22. Dwell Time Analysis of a Single-Molecule Mechanochemical Reaction

      Robert Szoszkiewicz, Sri Rama Koti Ainavarapu, Arun P. Wiita, Raul Perez-Jimenez, Jose M. Sanchez-Ruiz, and Julio M. Fernandez

     Langmuir Vol. 24 (2008) p 1356-1364. pdf

21. A Single-Molecule Assay to Directly Identify Solvent Accessible Disulfide Bonds and Probe Their Effect on Protein Folding

      Sri Rama Koti Ainavarapu*, Arun P. Wiita, Hector H. Huang, and Julio M. Fernandez

     Journal of American Chemical Society Vol. 130 (2008) p 436-437. pdf

2007

20. Time-resolved photoluminescence of terbium-doped microporous–mesoporous Zeotile-1 materials

      C. Tiseanu, M.U. Kumke, V.I. Parvulescu, Sri Rama Koti Ainavarapu, B.C. Gagea and J.A. Martens

     Journal of Photochemistry and Photobiology A: Chemistry Vol. 187 (2007) p 299-304. pdf

19. Contour Length and Refolding Rate of a Small Protein Controlled by Engineered Disulfide Bonds

      Sri Rama Koti Ainavarapu, Jasna Brujic, Hector H. Huang, Arun P. Wiita, Hui Lu, Lewyn Li, Kirstin A. Walther, Mariano Carrion-Vazquez, Hongbin Li, and J.M. Fernandez

     Biophysical Journal Vol. 92, No. 1 (2007) p 225-233. pdf

2006

18. Mechanical Unfolding Pathways of the Enhanced yellow Fluorescent Protein Revealed by Single Molecule Force Spectroscopy

      Raul Perez-Jimenez, Sergi Garcia-Manyes, Sri Rama Koti Ainavarapu, and J.M. Fernandez

      J. Biol.Chem. Vol. 281, No. 52 (2006) p 40010-40014. pdf

17. Fingerprinting DHFR in Single-Molecule AFM Studies

      Sri Rama Koti Ainavarapu, Lewyn Li, and J.M. Fernandez

     Biophysical Journal Vol. 91, No. 5 (2006) p 2009-2010. pdf

16. Force-dependent chemical kinetics of disulfide bond reduction observed with single-molecule techniques

      Arun P. Wiita, Sri Rama Koti Ainavarapu, Hector H. Huang, and J.M. Fernandez

      Proc. Natl. Acad. Sci. (USA) Vol. 103, No. 19 (2006) p 7222-7227. pdf

Commentary on this article is reported in PNAS (2006), 103, p7533: “Covalent chemistry on distended proteins”. pdf

2005

15. Ligand binding modulates the mechanical stability of dihydrofolate reductase (DHFR)

      Sri Rama Koti Ainavarapu, Lewyn Li, Carmen L. Badilla, and J.M. Fernandez

      Biophysical Journal Vol. 89, No. 5 (2005) p 3337-3344. pdf

2004

14. Photophysical Properties and Rotational Relaxation Dynamics of Neutral Red Bound to b-cyclodextrin

      M.K. Singh, H. Pal, Sri Rama Koti Ainavarapu, and A.V. Sapre

     J. Phys. Chem. A Vol. 108, (2004) p1465-1474. pdf

2003

13. Control of Coherence length and Aggregate size in the J-Aggregate of Porphyrin

      Sri Rama Koti Ainavarapu,  Jharna Taneja, and N. Periasamy

      Chemical Physics Letters Vol. 375, No. 1-2 (2003) p 171-176. pdf

12. Time Resolved Fluorescence Spectroscopy: TRES and TRANES

      N. Periasamy and Sri Rama Koti Ainavarapu  

      Proc. Indian Natl. Sci. Acad. Vol. 69, No. 1(2003) p 41-48. pdf

11. Self-Assembly of Template-Directed J-aggregates of Porphyrin

      Sri Rama Koti Ainavarapu and N. Periasamy

      Chemistry of Materials Vol. 15, No. 2 (2003) p 369-371. pdf

10. TRANES Spectra of Fluorescence Probes in Lipid Bilayer Membranes: An Assessment of Population Heterogeneity and Dynamics 

      Ira, Sri Rama Koti Ainavarapu, G. Krishnamoorthy, and N. Periasamy

      Journal of Fluorescence Vol. 13, No. 1 (2003) p 95-103. pdf

2002

9.  Time Resolved Area Normalized Emission Spectroscopy (TRANES) of DMABN Confirms Emission from Two States

    Sri Rama Koti Ainavarapu and N. Periasamy

     Research on Chemical Intermediates Vol. 28, No. 7-9 (2002) p 831-836. pdf

8.  Cyanine induced Aggregation in meso-tetrakis(4-sulphonatophenyl) Porphyrin Anions

    Sri Rama Koti Ainavarapu and N. Periasamy

     Journal of Materials Chemistry Vol. 12, No. 8 (2002) p 2312-2317. pdf

2001

7.  Time Resolved Fluorescence Spectroscopy: TRES vs TRANES

     N. Periasamy and Sri Rama Koti Ainavarapu

      ISRAPS Bulletin Vol. 12, No. 1-4 (December 2001) p 26-29. pdf

6.  Application of Time Resolved Area Normalized Emission Spectroscopy (TRANES) to multi-component systems

    Sri Rama Koti Ainavarapu and N. Periasamy

      J. Chem. Phys. Vol. 115, No. 15 (2001) p 7094-7099. pdf

5.  TRANES analysis of the Fluorescence of Nile Red in Organized Assemblies Confirms Emission from Two species

    Sri Rama Koti Ainavarapu and N. Periasamy

      Proc. Indian Acad. Sci. (Chem. Sci.) Vol. 113, No. 2 (2001) p 157-163. pdf

4. Time-Resolved Area-Normalized Emission Spectroscopy (TRANES): A Novel Method for Confirming Emission from Two Excited States

    Sri Rama Koti Ainavarapu, M.M.G. Krishna, and N. Periasamy

      J. Phys. Chem. A 105 (2001) p 1767-1771. pdf

Our TRANES work has been a part of the Principles of Fluorescence Spectroscopy, 3rd edition, by J.R. Lakowicz, chapter 7, p237-276. pdf

2000

3.  Photophysics of some styryl thiazolo quinoxaline dyes in organic media

    Sri Rama Koti Ainavarapu, B. Bhattacharjee, N.S. Haram, Ranjan Das, N. Periasamy, N.D. Sonawane, and D.W. Rangnekar

     Journal of Photochemistry and Photobiology A: Chemistry 137(2-3) (2000) p 115-123. pdf

2.  Solvent Exchange in Excited-State Relaxation in Mixed Solvents 

    Sri Rama Koti Ainavarapu and N. Periasamy

      Journal of Fluorescence Vol. 10, No. 2 (2000) p 177-184. pdf

1999

1.  NMR studies on truncated sequences of human telomeric DNA: observation of a novel A-tetrad

      Prasanta K. Patel, Sri Rama Koti Ainavarapu, and R.V. Hosur

     Nucleic Acids Research Vol. 27, No. 19 (1999) p 3836-3843. pdf