Joshua Walker
**** * **** ***, ********* WI *****
(C) 601-***-**** (E) **************@*****.***
Experience
Sigma Aldrich Chemical Sheboygan Falls, WI
Quality Control Chemist
Responsible for the preparation and evaluation of chemical combinations for all phases of
manufacturing, production and R&D processes. Principal task of determining the efficacy
of each product/chemical batch documenting results. Often responsible for minor
equipment and instrumentation t roubleshooting and repair. Duties include the safe
handling of hazardous materials. E xperience in the areas of GC, GC-MS 2 years
01/2013 - Current experience in IR,KF and NMR. Hands on-hands experience with method development
working with the devo, lab and production groups improving techniques and assays.
Developing products for customers and stability studies are also part of my current focus.
Method and instrumentation validation.
University Of Wisconsin-Milwaukee Milwaukee, WI
08/2008 - 12/2012
Graduate
Researcher
Conducted research and analysis in the areas of
Surface Science, Catalysis and
Physical Chemistry. Specific research experiments
on several metal surfaces including Pd(100),
Pd(111), Cu(111), Au(111), AuPd(100) alloys, Cu
foil, and Aluminum.
Teaching Assistant
Prepared and taught undergraduate General
Chemistry 102 and 105 Chemistry for Engineering
students 105. Facilitated discussions and
laboratories.
University Of California-Santa Barbara Santa Barbara, CA
06/2006 - 08/2007
Material
Science/Chemical
Engineering Intern
Research conducted included observing the
dissolution of quartz in the presence of
Muscovite Mica: SFA Technique while studying
organic stylolite formations using an
Scanning Electron Microscope. As a separate
project studied the properties of
Thermal Barrier Coatings for aircraft engine
blades to decrease Calcium Magnesium
Aluminum Silicate (CMAS) infilt ration which leads
to degradation and wear.
01/2005 -
Jackson State University Jackson, MS
05/2007
Undergraduate Researcher
Research conducted in the area of Physical Chemistry, which included the preparation of
A u and Ag nanoparticles to probe for the detection of Bio-agents, DNA and Heavy metals using Fluorescence Resonance Energy Transfer (FRET).
Chemical Laboratory Assistant
Organized Chemistry Laboratories, prepared
chemicals and distributed laboratory equipment to faculty and
students.
Education
University Of Wisconsin-Milwaukee, Milwaukee, WI, USA
2012
M.S.
Chemistry
2008 Jackson State University, Jackson, MS, USA
B.S. Chemistry
Areas of Expertise
Analysis and Identification of impurities within materials.
Handling and Analyzing Hazardous waste
Chemical Mechanical Planarization (CMP) Polishing
GC, HPLC, NMR, FTIR, Mass Spec, ATR, SEM, AFM, Auger, Low Energy
Electron Diffraction
Electron beam physical vapor deposition (Thermal Barrier Coatings)
Ultra-High Vacuum Science
Coatings, Metal alloys
Ozonolysis
Cryogenics, Pyrophorics
Instrumentation and equipment calibration
GMP, SOP, ISO and method validation.
Publications 1. Gold Nanoparticle Based FRET for DNA Detection, P C Ray, G K Darbha,
A Ray, J. Walker,
Hardy and A Perryman, Plasmonics, 2007, 2, 1730183.
2. Gold Nanoparticle Based FRET P robe for Multiplexed Hybridization Detection:
Accurate identification of Bio-agents D NA . Paresh C Ray, Gopala K Darbha, Anandhi Ray,
William Hardy and Joshua Walker, Nanotechnology, 2007, 18, 375504.
3. The Surface Chemistry of Dimethyl Disulfide on Copper . Octavio J. Furlong, Brendan P.
M iller, Zhenjun Li, Joshua Walker, Luke Burkholder, Wilfred T. Tysoe L angmui r, 2010, 26 (21),
pp 16375–16380.
4. Structure of the Au/Pd(100) Alloy Surface. Michael Garvey, Jorge A. Boscoboinik, Luke
Burkholder, Joshua Walker, Craig Plaisance, Matthew Neurock, and Wilfred T. Tysoe J . Phys.
Chem . C, 2012, 116 (7), pp 4692–4697.
5. The analysis of 1-3 P D I on Au(111) surface . Joshua Walker, John Kestell, Rasha Abuflaha, Yun Bai, Wilfred T. Tysoe (In preparation)
6. Mechanism for Water Assisted CO Oxidation on Au(111). Joshua Walker, W ilfred T. Tysoe
( In preparation)
7. Structure and Chemistry of Model Catalyst in Ultrahigh Vacuum. (Thesis) Joshua Walker
Professional American Chemical Society Member
Affiliations Surface Science Network
JSU Alumni Association
NOBBCHE