Information

Areas of Research Interest
  • Nanomaterials
  • Self-Assembly
  • Biophysics
  • Fluorescence Detection and Spectroscopy
Undergraduate Classes Taught
  • CHEM 546: Physical Chemistry II
  • CHEM 547: Physical Chemistry Lab
Publications

43. Goodson, K. A.; Wang, Z.; Haeusler, A. R.; Kahn, J. D.; English, D. S.: LacI-DNA-IPTG Loops: Equilibria among Conformations by Single-Molecule FRET. J. Phys. Chem. B. 2013, In Press.

42. Liu, J. W.; Campos, L. A.; Cerminara, M.; Wang, X.; Ramanathan, R.; English, D. S.; Munoz, V.: Exploring one-state downhill protein folding in single molecules. Proc. Natl. Acad. Sci. U. S. A. 2012, 109, 179-184.

41. Pons, T.; Medintz, I. L.; Farrell, D.; Wang, X.; Grimes, A. F.; English, D. S.; Berti, L.; Mattoussi, H.: Single-Molecule Colocalization Studies Shed Light on the Idea of Fully Emitting versus Dark Single Quantum Dots. Small 2011, 7, 2101-2108.

40. Campos, L.A.; Liu, J.; Wang, X.; Ramanatan, R.; English, D. S.; Munoz V.; 2011, "A photoprotection strategy for microsecond-resolution single molecule fluorescence spectroscopy." Nature Methods, 8, 143-146.

39. Wang, Z.; Leung, H. M.; Kee, T. W.; English, D. S.; 2010, "The Role of Charge in the Surfactant Assisted Stabilization of the Natural Product Curcumin." Langmuir, 26, 5520-5526.

38. Lioi, S. B.; Wang, X.; Islam, M.R.; English, D.S.; 2009, "Catanionic Surfactant Vesicles for Electrostatic Molecular Sequestration and Separation." Phys. Chem. Chem. Phys., DOI: 10.1039/B908523H.

37. Thomas, G. B.; Rader, L. H.; Park, J.; DeShong, P.; English, D. S.; 2009,"Carbohydrate Modified Catanionic Vesicles: Probing Multivalent Binding at the Bilayer Interface."J. Am. Chem. Soc.,131, 5471-5477.

36. Medintz, I. L.; Pons, T.; Trammell, S. A.; Grimes, A. F.; English, D. S.; Blanco-Canosa, S. B.; Dawson, P. E.; Mattoussi, H. , 2008,"Interactions between Redox Complexes and Semiconductor Quantum Dots Coupled Via a Peptide Bridge."J. Amer. Chem. Soc., 130, 16745-16756.

35. Dias, E. A.; Grimes, A. F.; English, D. S.; Kambhampati,P.; 2008,"Single Dot Spectroscopy of Two-Color Quantum Dot/Quantum Shell." J. Phys. Chem. C.,112, 14229-32.

34. Park, J.; Rader, L. H.;Thomas, G. B.; Danoff, E. J.; English, D. S.; DeShong, P., 2008,"Carbohydrate-functionalized Catanionic Surfactant Vesicles: Preparation and Lectin-Binding Studies."Soft Matter, 4, 1916-1921.

33. Pons, T.; Medintz, I.L.; Sapsford, K.E.; Higashiya, S. Grimes, A.F.; English, D.S.; Mattoussi, H., 2007,"On the quenching of semiconductor quantum dot photoluminescence by proximal gold nanoparticles ." Nano Letters, 7, 3157-3164.

32. Zhu, C.; Wu, L.-Q.; Wang, X.; Lee, J.-H.; English, D. S.; Ghodssi, R.; Raghavan, S. R.; Payne, G. F., 2007, "Reversible Vesicle Restraint in Response to Spatiotemporally Controlled Electrical Signals: A Bridge between Electrical and Chemical Signaling Modes." Langmuir,23, 286-91.

31. Medintz, I. L.; Berti, L.; Pons, T.; Grimes, A. F.; English, D. S.; Alessandrini, A.; Facci, P.; Mattoussi, H., 2007, "A Reactive Peptidic Linker for Self-Assembling Hybrid Quantum Dot-DNA Bioconjugates." Nano Letters,7, 1741-48.

30. Grimes, A. F.; Call, S. E.; Harbron, E. J.; English, D. S., 2007, "Wavelength-Resolved Studies of Förster Energy Transfer in Azobenzene-Modified Conjugated Polymers: The Competing Roles of Exciton Migration and Spectral Resonance." J. Phys. Chem. C.,111.

29. Danoff, E. J.; Wang, X.; Tung, S.-H.; Sinkov, N. A.; Kemme, A. M.; Raghavan, S. R.; English, D. S., 2007, "Surfactant Vesicles for High-Efficiency Capture and Separation of Charged Organic Solutes." Langmuir,23, 8965-71

28. Wang, X.; Danoff, E. J.; Sinkov, N. A.; Lee, J.-H.; Raghavan, S. R.; English, D. S., 2006, "Highly Efficient Capture and Long-Term Encapsulation of Dye by Catanionic Surfactant Vesicles." Langmuir,22, 6461-64.

27. Grimes, A. F.; Call, S. E.; Vicentia, D. A.; English, D. S.; Harbron, E. J., 2006, "Toward Efficient Photomodulation of Conjugated Polymer Emission: Optimizing Differential Energy Transfer in Azobenzene-Substituted PPV Derivatives." J. Phys. Chem. B.,110, 19183-90.

26. Pons, T.; Medintz, I. L.; Wang, X.; English, D. S.; Mattoussi, H., 2006, "Solution-Phase Single Quantum Dot Fluorescence Resonance Energy Transfer." J. Am. Chem. Soc.,128, 15324-31.

25. I. Koh, X Wang, B. Varughese L. Isaacs, S. Ehrman and D. S. English, 2006 "Preparation and Characterization of Antibody Labeled Magnetic Iron Oxide Nanoparticles for Bioseparations." J. Phys. Chem. B., 2006, 110, 1553-58.

24. English, D. S.; Luckett, C.; Jayaraman, K.; Lee, S. B.; Son, S. J.; Okamoto, K., 2006, "Solvent Behavior in Hydrophobic Silica Nanotubes." Mater. Res. Soc. Symp. Proc.,899E.

23. Jayaraman, K.; Okamoto, K.; Son, S. J.; Luckett, C.; Gopalani, A. H.; Lee, S. B.; English, D. S., 2005, "Observing Capillarity in Hydrophobic Silica Nanotubes." J. Am. Chem. Soc.,127, 17385-92.

22. M. Morgan, K. Okamoto, J. D. Kahn and D. S. English, 2005. "Single Molecule Spectroscopic Determination of Lac Repressor-DNA Loop Conformation." Biophysical Journal, 89, 2588-2596.

21. Li-Qun Wu, K. Lee, X. Wang, D. S. English, W. Losert, and G. F. Payne, 2005. "Chitosan-Mediated and Spatially Selective Electrodeposition of Nano-Scale Particles."Langmuir, 21 (8): 3641-3646.

20. Sivanesana, P., K. Okamoto, D. English, C. S. Lee and D. L. Devoe, 2005. "Polymer nanochannels fabricated by thermomechanical deformation for single molecule analysis." Analytical Chemistry, 77 (7); 2252-2258.

19. Okamoto, K., C. Shook, L. Bivona, S.B. Lee, and D.S. English, 2004. "Direct observation of wetting and diffusion in the hydrophobic interior of silica nanotubes.", Nano Letters, 4(2) p.233-239.

18. Jang, H., L.E. Pell, B.A. Korgel, and D.S. English, 2003. "Photoluminescence quenching of silicon nanoparticles in phospholipid vesicle bilayers." Journal of Photochemistry and Photobiology, A: Chemistry, 158(2-3): p. 111-117.

17. English, D.S., L.E. Pell, Z. Yu, P.F. Barbara, and B.A. Korgel, 2002. "Size tunable visible luminescence from individual organic monolayer stabilized silicon nanocrystal quantum dots." Nano Letters, 2(7): p. 681-685.

16. Kolosov, D., D.S. English, V. Bulovic, P.F. Barbara, S.R. Forrest, and M.E. Thompson, 2001. "Direct observation of structural changes in organic light emitting devices during degradation." Journal of Applied Physics, 90(7): p. 3242-3247.

15. English, D.S., E.J. Harbron, and P.F. Barbara, 2001. "Role of rare sites in single molecule spectroscopy measurements of spectral diffusion." Journal of Chemical Physics, 114(23): p. 10479-10485.

14. Whaley, S.R., D.S. English, E.L. Hu, P.F. Barbara, and A.M. Belcher, 2000. "Selection of peptides with semiconductor binding specificity for directed nanocrystal assembly." Nature, 405(6787): p. 665-668.

13. English, D.S., A. Furube, and P.F. Barbara, 2000. "Single-molecule spectroscopy in oxygen-depleted polymer films." Chemical Physics Letters, 2000. 324(1-3): p. 15-19.

12. English, D.S., E.J. Harbron, and P.F. Barbara, 2000. "Probing photoinduced intersystem crossing by two-color, double resonance single molecule spectroscopy." Journal of Physical Chemistry A, 104(40): p. 9057-9061.

11. Smirnov, A.V., K. Das, D.S. English, Z. Wan, G.A. Kraus, and J.W. Petrich, 1999. "Excited-state intramolecular H atom transfer of hypericin and hypocrellin A investigated by fluorescence upconversion." Journal of Physical Chemistry A, 103(40): p. 7949-7957.

10. English, D.S., R.T. Doyle, J.W. Petrich, and P.G. Haydon, 1999. "Subcellular distributions and excited-state processes of hypericin in neurons." Photochemistry and Photobiology, 69(3): p. 301-305.

9. Park, J., D.S. English, Y. Wannemuehler, S. Carpenter, and J.W. Petrich, 1998. "The role of oxygen in the antiviral activity of hypericin and hypocrellin." Photochemistry and Photobiology, 68(4): p. 593-597.

8. English, D.S., R.L. Rich, and J.W. Petrich, 1998. "Nonexponential fluorescence decay of 7-azatryptophan induced in a peptide environment." Photochemistry and Photobiology, 67(1): p. 76-83.

7. Smirnov, A.V., D.S. English, R.L. Rich, J. Lane, L. Teyton, A.W. Schwabacher, S. Luo, R.W. Thornburg, and J.W. Petrich, 1997. "Photophysics and biological applications of 7-azaindole and its analogs." Journal of Physical Chemistry B, 101(15): p. 2758-2769.

6. English, D.S., W. Zhang, G.A. Kraus, and J.W. Petrich, 1997. "Excited-state photophysics of hypericin and its hexamethoxy analog: Intramolecular proton transfer as a nonradiative process in hypericin." Journal of the American Chemical Society, 119(13): p. 2980-2986.

5. English, D.S., K. Das, J.M. Zenner, W. Zhang, G.A. Kraus, R.C. Larock, and J.W. Petrich, 1997. "Hypericin, hypocrellin, and model compounds: Primary photoprocesses of light-induced antiviral agents." Journal of Physical Chemistry A, 101(18): p. 3235-3240.

4. English, D.S., K. Das, K.D. Ashby, J. Park, J.W. Petrich, and E.W. Castner,1997. "Confirmation of excited-state proton transfer and ground-state heterogeneity in hypericin by fluorescence upconversion." Journal of the American Chemical Society, 119(48): p. 11585-11590.

3. Das, K., D.S. English, and J.W. Petrich, 1997. "Solvent dependence on the intramolecular excited-state proton or hydrogen atom transfer in hypocrellin." Journal of the American Chemical Society, 119(11): p. 2763-2764.

2. Das, K., D.S. English, and J.W. Petrich, 1997. "Deuterium isotope effect on the excited-state photophysics of hypocrellin: Evidence for proton or hydrogen atom transfer.",Journal of Physical Chemistry A, 101(18): p. 3241-3245.

1. Das, K., D.S. English, M.J. Fehr, A.V. Smirnov, and J.W. Petrich, 1996. "Excited-state processes in polycyclic quinones: The light- induced antiviral agent, hypocrellin, and a comparison with hypericin." Journal of Physical Chemistry, 1996. 100(46): p. 18275-18281.