Björn Reinhard

Professor Bjoern Reinhard (Chemistry, MSE)

Professor (Chemistry, MSE)

Professor (Chemistry, MSE)

  • Primary Appointment Chemistry
  • Education Postdoctoral Fellow, UC Berkeley, 2004-2006
    Dr. rer. nat., Technical University Kaiserslautern, 2003
    Diploma, Technical University Munich, 2000
    Intermediate Diploma, University of Bielefeld, 1997
  • Additional Affiliations Materials Science & Engineering
  • Honors and Awards 2010 NSF Career Award
    2006 Call to Nanobiocenter at Odense University, Denmark (Declined)
    2006 Juan de la Cierva Award
    2005 DFG Research Scholarship
    2004 Otto Wipprecht Fellowship
    2004 Scholarship for the 51st Annual Western Spectroscopy Association Conference
    1995 Award of the German Chemical Industry Fund
  • Areas of Interest Photophysical properties of nanoparticles and the applications of these nanoparticles to biological sensors and devices.
  • Research Areas The Nano-Bio Interface Lab has been awarded a Boston University Nanomedicine Award. In collaboration with the Fearns and Genco Groups, we will develop novel nanotechnology enabled tools to probe RNA-protein complexes in viral and bacterial pathogens.
    Research in the Reinhard Lab focuses on new optical materials and their application to interrogate fundamental life processes. We are exploring the interface between nanotechnology and biological systems. For an overview of current research projects, please visit our group’s website. Recents techniques/materials developed in the Nano-Bio Interface Lab include:
    Plasmon ruler RNase A cleavage assay. (A) The RNA plasmon rulers are bound to the surface of a glass flow chamber using a BSA (bovin serum albumin)-Biotin-NeutrAvidin surface chemistry. Upon addition of RNase A, the RNA tether is cleaved, and the dimer converted into a monomer. (B) Single RNA plasmon ruler cleavage trajectory (recorded at 96 Hz). (I) The plasmon ruler is first incubated in buffer containing spermidine at defined concentrations (0 -5 mM), (II) the buffer is exchanged with a 1 nM RNase A solution, causing (III) a strong drop in intensity upon RNA cleavage. Inset: Number of cleavage events for flushing with/without enzyme. ∆tcl is defined as the time between enzyme addition and cleavage. For more information, refer to: L.R. Skewis & B.M. Reinhard, Nano Lett., 8, 214 (2008).
    Plasmon Coupling Microscopy. Gold nanoparticle labeled surface receptors (left) and spectral signature (right) as function of interparticle distance. (a) For interparticle separations ∆ larger than the particle diameter D, the near-field interactions between the particles is small and the resonance wavelength λres is that of an individual particle. (b) For interparticle separations ∆ < D the plasmons in the individual particles couple and the resonance wavelength λres red-shifts with decreasing separation. This spectral shift is observable as an increase in the intensity ratio R = I580nm/I530nm.
    Multiscale Nanoparticle Cluster Arrays (NCAs). SEM images from extracts of nanoparticle cluster arrays with varying diameters of e-beam defined binding size D = 50 nm (a), 80 nm (b), 100 nm (c), 130 nm (d), 200 nm (e). The SEM images confirm that through control of the diameter of the e-beam fabricated binding site the cluster size can be continuously varied. The enlargement of an individual cluster in (f) shows junctions and crevices between nearly touching particles constituting a high degree of roughness on the nanoscale.

Publications

Affiliation: Affiliated Faculty (MSE),