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Nature Nanotechnology 2013b
16. Kevin P. Browne, David A. Walker, Malous M. Kossarian, Chris M. Gothard, Baudilio Tejerina, Bartosz A. Grzybowski, "Click reaction requires sub-nanometer proximity of Cu(I) catalytic centers," Submitted (2014).
Nanoscale 2014
15. Qiang Zhuang, David A. Walker (co-first author), Kevin P. Browne, Bartlomiej Kowalczyk, Bartosz A. Grzybowski, "Temperature Driven Assembly of Like-Charged Nanoparticles at Non-Planar Liquid-Liquid or Gel-Air Interfaces," Nanoscale, 6, 4475-4479 (2014).
Nanoscale 2014
Angewandte Chemie 2014
14. Rui Zhang, David A. Walker, Bartosz A. Grzybowski, Monica Olvera de la Cruz, "Accelerated Self-Replication under Non-Equilibrium, Periodic Energy Delivery,", Angewandte Chemie International Edition, 53, 173-177 (2014).
Angewandte Chemie 2014
Nature Nanotechnology 2013
13. David A. Walker "Feature - Thoughts on an education,", Nature Nanotechnology, 8, 794-796 (2013).
Nature Nanotechnology 2013
12. David A. Walker, Emily K. Leitsch, Rikkert J. Nap, Igal Szleifer, Bartosz A. Grzybowski, "Geometric curvature controls the chemical patchiness and self-assembly of nanoparticles," Nature Nanotechnology, 8, 676-681 (2013).
Nature Nanotechnology 2013
Faraday Discussions 2012
11. Bartosz A. Grzybowski, Bartlomiej Kowalczyk, Istvan, Lagzi, Dawei Wang, Konstantin V. Tretiakov, David A. Walker, "Inorganic Salts Direct the Assembly ofCharged Nanoparticles into Composite Nanoscopic Spheres, Plates, or Needles," Faraday Discussions, 159, 201-209, (2012).
Angewandte Chemie 2012
10. Yanhu Wei, Shuangbing Han, David A. Walker, Patrick E. Fuller, Bartosz, A. Grzybowsi, "Nanoparticle Core/Shell Architectures within MOF Crystals Synthesized by Reaction Diffusion," Angewandte Chemie International Edition, 51, 7435-7439, (2012).
Angewandte Chemie 2012
Langmuir 2012
9. Scott C. Warren, David A. Walker, Bartosz, A. Grzybowsi, "Plasmoelectronics: Coupling Plasmonic Excitation with Electron Flow," Langmuir, 28, 9093-9102, (2012).
Chemical Science 2012
8. Yanhu Wei, Shuangbing Han, David A. Walker, Scott C. Warren, Bartosz, A. Grzybowsi, "Enhanced photocatalytic activity of hybrid Fe2O3-Pd nanoparticluate catalysts," Chemical Science, 3, 1090-1094, (2012).
Nature Nanotechnology 2011
7. Hideyuki Nakanishi, David A. Walker, Kyle J.M. Bishop, Paul, J. Wesson, Yong Yan, Siowling Soh, Sumanth Swaminathan, Bartosz, A. Grzybowsi, "Dynamic internal gradients control and direct electric currents within nanostrucuted materials," Nature Nanotechnology, 6, 740-746, (2011).
Nature Nanotechnology 2011
Nanoscale 2011
6. David A. Walker, Bartlomiej Kowalczyk, Monica Olvera de la Cruz, Bartosz, A. Grzybowsi, "Electrostatics at the Nanoscale," Nanoscale, 3, 1316-1344, (2011).
Angewandte 2010c
5. David A. Walker, Kevin P. Browne, Bartlomiej Kowalczyk, Bartosz A. Grzybowski, "Self-assembly of nanotriangle superlattices facilitated by repulsive electrostatic interactions," Angewandte Chemie International Edition, 49, 6760-6763, (2010).
Angewandte 2010b
4. Kevin P. Browne, David A. Walker (co-first author), Kyle J.M. Bishop, Bartosz A. Grzybowski, "Self-Division of Macroscopic Droplets: Partitioning of Nanosized Cargo into Nanoscale Micelles," Angewandte Chemie International Edition, 49, 6756-6759, (2010).
Angewandte 2010a
3. Bartlomiej Kowalczyk, David A. Walker, Siowling Soh, Bartosz A. Grzybowski, "Nanoparticle supracrystals and layered supracrystals as chemical amplifiers," Angewandte Chemie International Edition, 49, 5737-5741, (2010).
Nano Letters 2010
2. David A. Walker, Christopher E. Wilmer, Bartlomiej Kowalczyk, Kyle J.M. Bishop, and Bartosz A. Grzybowski, "Precision assembly of oppositely- and like-charged nanoobjects mediated by charge-induced dipole interactions," Nano Letters, 10, 2275-2280 (2010).
Nanotechnology 2008
1. David A. Walker, Vinay K. Gupta, "Reversible end-to-end assembly of gold nanorods using a disulfide-modified polypeptide," Nanotechnology, 19, 435603 (2008).
David A Walker
Hobbies Outside of Science and Engineering
Nano-Reef Aquariums
Kayaking
Camping and Backpacking
Cycling

Coming Soon

Nanoscale 2014
2014 Angewandte Chemie
2013 Nature Nanotechnology

Invited Nature Nanotechnology Feature on Education Released

11.12.2013
A feature article which I contributed to became available online today. The article looks at perspectives on nanotechnology eduction from all across the world - I was the only North American student to contribute to the piece. It is part of the November issue of Nature Nano.
David A. Walker, "Feature - Thoughts on an education," Nature Nanotechnology, 8, 794-796, (2013).
2013 AIChE Meeting

2013 AIChE Annual Meeting

11.03.2013
I'll be attending the 2013 American Institute of Chemical Engineering Annual Meeting in San Francisco this week where I will give a poster presentation and three talks:
"Designing Nano-Scaled Micro-Environments for Molecular Catalysis and Synthetic Biology" [Poster]
"How Particle Geometry Controls the Properties and Assembly of Nanoobjects" [Presentation]
"Nanoparticle SAMs as Artificial Micro-Environments - Chemistry Inspired by Biology" [Presentation]
"Nanoparticle SAMs as Molecular Rulers: Two Cu(I) Catalytic Centers are Required for 'Click' Catalysis" [Presentation]
Northwestern Unviersity ChBE

2013 Northwestern University ChBE Graduate Researcher Award

09.05.2013
I was just informed that I will be awarded the 2013 Northwestern University ChBE Graduate Researcher Award this month at the ChBE annual retreat.

This honor is bestowed to the most outstanding graduate researcher in Northwestern's Department of Chemical and Biological Engineering.
Nature Nanotechnology
Foresight Institute

2012 Foresight Institute Distinguished Student Award

12.07.2012
I was just informed that I will be awarded the 2012 Foresight Institute Distinguished Student Award next month in Palo Alto, CA.

This prestigious award is given to the student whose recent work has most advanced the achievement of Feynman's goal for nanotechnology: molecular manufacturing, defined as the construction of atomically-precise products through the use of molecular machine systems. This prize is given in honor of Richard P. Feynman who, in 1959, gave a visionary talk at Caltech in which he said "The problems of chemistry and biology can be greatly helped if our ability to see what we are doing, and to do things on an atomic level, is ultimately developed - a development which I think cannot be avoided." It is one of the only international nanotechnology awards available to students.

2012 AIChE Annual Meeting

10.28.2012
I'll be attending the American Institute of Chemical Engineering Annual Meeting this week where I will give a poster presentation and two talks:

"How Particle Geometry Controls the Properties and Assembly of Nanoobjects" [Presentation]
"Nanoscale Electrostatics and the Importance of Geometry" [Poster]
"Electrostatic Catalysis of 'Nanomolecules'" [Presentation]
Manuscript Published in Faraday Discussions
2012 AIChE Annual Meeting

2145 Sheridan Rd TECH E136
Evanston, IL 60208
davidwalker@u.northwestern.edu
Cell: (321) 277-7807
MRSEC
NERC

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