James Siegenthaler
Scientist at Fraunhofer USA Inc.- Claim this Profile
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Bio
Experience
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Fraunhofer USA Inc.
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United States
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Research
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1 - 100 Employee
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Scientist
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Sep 2020 - Present
• Develop metal fused filament fabrication techniques for Ti-6Al-4V and other metals• Optimize and characterize 3D printed metal parts• Manage a 3D printing lab using various printing technologies and materials• Adapt all diamond microelectrodes to be compatible with FSCV for neurotransmitter electrochemical detection and analysis• Investigate new applications and functionalization of boron-doped diamond electrodes for biosensor applications• Oversee and manage a team of students and interns researching applications for boron-doped diamond electrodes• Provide technical expertise for material characterization and analysis
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University of Arizona
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United States
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Higher Education
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700 & Above Employee
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Graduate Research Assistant at the Keck Imaging Center
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Aug 2017 - Sep 2020
• Responsible for operation, troubleshooting and maintenance of research-grade imaging instruments including one scanning electron microscope (SEM), three atomic force microscopes (AFM), one stereoscope, one confocal microscope, one plasma sputter coater, and one FTIR Spectrometer• Certified and trained 150+ researchers for independent and advanced operation of the instruments with backgrounds ranging from engineering, biology, physics, soil science, optics, material science and chemistry• Routinely imaged samples submitted to the facility by researchers and external companies and provided analysis reports on biological, polymer, organic and inorganic samples• Consulted with both university and external companies on imaging and appropriate analysis of various polymers, organic, inorganic, and biological samples• Authored standard operating manuals for the operation of SEM, EDX, AFM, and FTIR analysis
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Graduate Research Assistant
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Aug 2015 - Sep 2020
• Developed a capacitive-coupling electrochemical technique to move fast-scan cyclic voltammetry towards FDA compliance for in vivo neurotransmitter measurement• Designed and fabricated custom analog circuitry for multichannel electrochemical neurotransmitter measurement• Characterize carbon fibers for electrochemical applications on material differences• Develop workflow algorithms for machine learning and automation of electrochemical neurotransmitter identification and quantification• Developed software for electrochemical detection of neurotransmitters measurement and analysis in both LabVIEW and MATLAB• Formulated a process to selectively insulate carbon fiber electrodes and developed a multichannel microelectrode array for neurotransmitter measurement• Hand fabrication of carbon-fiber microelectrodes and electrode arrays for dopaminergic measurements using fast-scan cyclic voltammetry• Investigated derivatized EDOT monomer electrodeposition coatings for lifetime stability• Maintained the laboratory research equipment (potentiostat, HPLC, and vacuum pumps), computers, and research materials supply stock
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Graduate Teaching Assistant
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Aug 2015 - May 2017
Direct supervision and hands-on laboratory instruction of 250+ students ranging from general chemistry to advanced instrumental analytical chemistry. Responsible for review and assessment of student-submitted work, pre-testing experiments, and maintenance and calibration of measurement instruments (GC-MS, ICP-AES, ATR-FTIR, Raman, Fluorometer, UV/Vis, TGA, DSC, HPLC, IC)
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Tree Top, Inc.
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United States
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Food and Beverage Manufacturing
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300 - 400 Employee
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Analytical Food Technologist
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Jun 2013 - Jul 2015
• Collected and analyzed fruit samples nutritional content, heavy metal content, and pesticide quantification with the QuEChERS method using titration, HPLC, UV-Vis, GC, ICP-MS, and UPLC-MS/MS• Routing Maintenance and repair of analytical lab equipment which included ICP-MS, HPLC, and UPLC-MS/MS systems• Designed executed a three-month dust sampling experiment monitoring for airborne pesticides • Collected and analyzed fruit samples nutritional content, heavy metal content, and pesticide quantification with the QuEChERS method using titration, HPLC, UV-Vis, GC, ICP-MS, and UPLC-MS/MS• Routing Maintenance and repair of analytical lab equipment which included ICP-MS, HPLC, and UPLC-MS/MS systems• Designed executed a three-month dust sampling experiment monitoring for airborne pesticides
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Central Washington University
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Higher Education
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700 & Above Employee
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Graduate Research Assistant
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Sep 2013 - Jun 2015
• Derivatized and characterized silica gel with a hydrophobic co-block polymer by ATR-FTIR• Developed a transportation method to control and manipulate the localization of molecular cargo within solution using a quartz crystal microbalance, UV-Vis, and ATR-FTIR spectroscopy• Constructed an algorithm for analysis of multicomponent UV-Vis spectra using MATLAB
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Chemistry Tutor
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Sep 2011 - Jun 2015
• Lead tutoring sessions for general, organic, quantitative analysis, instrumental analysis, and biochemistry classes• Aide students in problem-solving to solve complicated homework problems• Train new tutors on different techniques and tools needed to aide frustrated students with problem-solving
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Graduate Teaching Assistant
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Apr 2011 - Jun 2015
• Conduct lab sessions for general chemistry, quantitative analysis and instrumental analysis lab courses• Create rubrics and grade student lab reports providing prompt feedback• Promote safety and teach students proper lab techniques
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Instructor of Record
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Apr 2014 - Jun 2014
Direct oversight of teaching assistants and students in a hands-on general chemistry laboratory course. Responsible for ensuring student safety, planning, conducting, and executing both teaching assistant meetings and student learning sessions. Student assessment was reported directly to the university registrar for permanent academic record.
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Electronics Assembler
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Aug 2009 - Aug 2010
• Worked independently stuffing and soldering circuit boards• Created custom cables varying in length and pin count• Clean facilities and restock supplies as needed • Worked independently stuffing and soldering circuit boards• Created custom cables varying in length and pin count• Clean facilities and restock supplies as needed
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North Kitsap School District
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United States
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Education Management
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200 - 300 Employee
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Facility Technician
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Sep 2006 - Aug 2009
• Open and close facilities for rental clients for usage• Design custom lighting for theater productions• Design analog sound setups and operate sound system for live performances • Open and close facilities for rental clients for usage• Design custom lighting for theater productions• Design analog sound setups and operate sound system for live performances
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Education
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University of Arizona
Doctor of Philosophy - PhD, Analytical Chemistry -
Central Washington University
Master of Science (M.S.), Chemistry -
Central Washington University
Bachelor of Science, Chemistry (ACS Certified) -
Central Washington University
Bachelor of Arts (B.A.), Biology, General -
Olympic College
Associate of Arts (A.A.), Chemistry -
North Kitsap High School
High School Diploma, Film/Cinema/Video Studies