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The Maynard Group performs cutting-edge research on polymer bioconjugates and protein nanoarrays and educates the next generation of researchers and leaders in organic chemistry, polymer science, nanotechnology, and biomedicine.


Latest Publication
Nanoparticle Growth via Concentration Gradients Generated by Enzyme Nanopatterns

de la Rica, R.; Bat, E.; Herpoldt, K. L.; Xie, H.-n.; Bertazzo, S.; Maynard, H. D.; Stevens, M. M., "Nanoparticle Growth via Concentration Gradients Generated by Enzyme Nanopatterns," Adv. Funct. Mater., 2014, 24, 3692-3698. [LINK]

Biomineralizing organisms can grow nanomaterials with unexpected morphologies in an organic matrix where temporal and vectorial gradients of crystal growth precursors are established. Here, concentration gradients for the crystallization of gold nanoparticles are generated and applied on silicon substrates. Gradients of crystal growth precursors are generated by enzymes patterned as lines that are separated by distances ranging from the micro- to the nanoscale. The concentration of crystallization precursors around the lines separated by nanometric distances is not only determined by mass transport and enzyme activity but also by the nanoscale organization of biocatalysts. This nanoscale organization favors non-classical crystal growth conditions that lead to the formation of nanoparticle clusters containing nanocrystals that are highly crystallographically aligned. The combination of bottom-up crystal growth with top-down electron beam lithography enables the fabrication of micrometric patterns containing gold nanoparticles of different size, shape, and surface density. These are all critical parameters that determine the physical properties of these nanomaterials.

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Recent News
  • July 2014: Heather listed in C&EN as Who's who (talks to go to) for the San Francisco National Meeting
  • June 2014: Congratulations to recent PhDs Juneyoung Lee and Nic Matsumoto! They will be going on to postdocs with Bob Grubbs at Caltech and Bert Meijer at Eindhoven, respectively.
  • June 2014: Erhan's collaborative paper with Imperial College London receives cover of Adv. Funct. Mater.
  • April 2014: Heather featured on UCLA OIP [LINK]
  • April 2014: Emma receives NSF Grad Fellowship
  • February 2014: Cait receives Departmental Fellowship
  • November 2013: En-wei wins the 2014 Cram Fellowship
  • November 2013: Heather and Kathy win the Herbert Newby McCoy Award for Outstanding Research at UCLA
  • November 2013: Kathy selected for Excellence in Graduate Polymer Research Symposium at the ACS
  • August 2013: Peter N. selected as senior Undergrad Scholar and receives Ehrisman Award

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Department of Chemistry & Biochemistry 607 Charles E. Young Drive East Los Angeles, CA 90095-1569
Last Updated: 19 November 2013