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ZelosDx

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Our team has the necessary industry expertise and the flexibility, commitment, and passion to build a successful company. Team and board members have launched diagnostic, device, and drug products, negotiated licensing agreements, and led acquisitions/divestitures.

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Marie Wesselhoft, President & Cofounder

Uwe Müller PhD, VP of Product Development

Uwe Müller PhD, VP of Product Development

has spent the last fifteen years involved in the southern Arizona bio start-up community. Currently President of ZelosDx and a Mentor-in-Residence at the University of Arizona, Marie previously served as the Director for the University of Arizona Center for Innovation Business Incubator. During her 20-year career at Baxter, she held sever

has spent the last fifteen years involved in the southern Arizona bio start-up community. Currently President of ZelosDx and a Mentor-in-Residence at the University of Arizona, Marie previously served as the Director for the University of Arizona Center for Innovation Business Incubator. During her 20-year career at Baxter, she held several senior management positions including General Manager of the diagnostic business unit. At Baxter she launched multiple $25-50 million diagnostic product lines. Early in Marie’s career she was a hospital laboratory director for one of the Humana facilities in the Chicago healthcare market. She earned a B.S. in Medical Technology from the University of Wisconsin, attended the University of Chicago Business School and the University of Arizona McGuire Center for Entrepreneurship.

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Uwe Müller PhD, VP of Product Development

Uwe Müller PhD, VP of Product Development

Uwe Müller PhD, VP of Product Development

has 32 years of experience in industrial research and product development that includes positions as CSO (NeoClone), EVP for Product Development (Banyan Biomarkers), VP for Applied Science (Nanosphere), Technology Director (Corning), and Director of Advanced Technology (Vysis, now Abbott Molecular). Leading national and international team

has 32 years of experience in industrial research and product development that includes positions as CSO (NeoClone), EVP for Product Development (Banyan Biomarkers), VP for Applied Science (Nanosphere), Technology Director (Corning), and Director of Advanced Technology (Vysis, now Abbott Molecular). Leading national and international teams, his R&D activities have focused on DNA and protein-based diagnostics, including DNA probes, arrays and immuno-assays. He received his B.S. from Justus Liebig University (Germany), and M.S. and Ph.D. from Kansas State University, with postdoctoral training at the University of Wisconsin, Madison. He has authored/co-authored 57 research publications in peer-reviewed journals, co-edited a book, and holds 11 issued US patents

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Ramesh Nayak PhD, Inventor

Uwe Müller PhD, VP of Product Development

Melita Ball, Director of Regulatory & Quality

has had a 30-year academic and company research career in immunology and neurology. Ram has held positions as Research Associate Professor, Department of Ophthalmology, University of Arizona; Staff Investigator, Joslin Diabetes Center in Boston; Assistant Professor at Harvard Medical School and Tufts University College of Medicine; Resear

has had a 30-year academic and company research career in immunology and neurology. Ram has held positions as Research Associate Professor, Department of Ophthalmology, University of Arizona; Staff Investigator, Joslin Diabetes Center in Boston; Assistant Professor at Harvard Medical School and Tufts University College of Medicine; Research Fellow, Harvard Medical School; and doctoral student in the Department of Neurochemistry, Institute of Neurology, Queen Square London. His expertise enabled him to lead the discovery of our technology process and drive the intellectual property process.

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Melita Ball, Director of Regulatory & Quality

Melita Ball, Director of Regulatory & Quality

Melita Ball, Director of Regulatory & Quality

has over 30 years’ experience in regulatory compliance and quality systems for medical device and diagnostic companies.  She is a globally recognized leader in her field and brings expertise in regulatory compliance, quality system development, computer software validation (CSV), supplier qualification and management, quality auditing, re

has over 30 years’ experience in regulatory compliance and quality systems for medical device and diagnostic companies.  She is a globally recognized leader in her field and brings expertise in regulatory compliance, quality system development, computer software validation (CSV), supplier qualification and management, quality auditing, regulatory and quality training, CAPA, project management, and management responsibility.  She has worked with large and small companies over her career including companies such as Third Wave Technologies (Now Hologic), Ventana Medical Systems, Intuitive Surgical, Ethicon Endo Surgery, Medtronic, Stryker, Boston Scientific, Siemens Healthineers, and many others.

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Betty Weaver, CPA, Controller

Melita Ball, Director of Regulatory & Quality

Vanessa White, MS, Research Associate

provides financial management. She has extensive experience in public accounting, including several years as principal of her own accounting firms in Arizona and Texas. Betty provides tax, review, and consulting to both public and early-stage private companies.

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Vanessa White, MS, Research Associate

Melita Ball, Director of Regulatory & Quality

Vanessa White, MS, Research Associate

brings nearly a decade of experience with a rigorous process-oriented and engineering approach to bio challenges, leveraging design, verification, and certification of airborne electronics products and customized compute engines. Vanessa is one of the initial ZelosDx team members, contributing to assay development and validation, research

brings nearly a decade of experience with a rigorous process-oriented and engineering approach to bio challenges, leveraging design, verification, and certification of airborne electronics products and customized compute engines. Vanessa is one of the initial ZelosDx team members, contributing to assay development and validation, research grant projects, quality controls, and sample testing.   Ms. White holds a B.S. in Electrical Engineering from the University of Wisconsin-Milwaukee,  and completed a Professional Science Masters (PSM) in Applied Biosciences from the University of Arizona in 2014

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Zach Romero, PhD Assay Development Scientist

Zach Romero, PhD Assay Development Scientist

Zach Romero, PhD Assay Development Scientist

brings 6 years of highly analytical biochemistry lab experience. He has experience using single molecule, whole cell, and animal model approaches to answer questions in both autoimmunity and cancer. Zach earned a B.S. in Biochemistry from New Mexico State University in 2016 where he utilized in vitro recombination systems to study DNA rep

brings 6 years of highly analytical biochemistry lab experience. He has experience using single molecule, whole cell, and animal model approaches to answer questions in both autoimmunity and cancer. Zach earned a B.S. in Biochemistry from New Mexico State University in 2016 where he utilized in vitro recombination systems to study DNA repair proteins. In 2020 he completed his Ph.D. from the University of Wisconsin, Madison where he studied under Michael Cox characterizing genes implicated in ionizing radiation resistance by utilizing genomic and single molecule approaches.

Board & Advisors

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We have an active board and thought-leader advisors.

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Conrad Plimpton, Board Chair

concurrently serves as Chair of Sustainable Botanicals International  Inc., Chair of Plimpton & Company, and partner of CDI Global. Conrad & his wife are majority owners of INOLEX, their 125-year-old family owned skincare business brought to IPO as a pharma biotech company in the late 1960's by Goldman Sachs.  He was also founding Chair and major shareholder Exide Electronics that Alex Brown (now Deutsche Bank) took public; sold to INVENSYS in 1997 for $600 million.  Along with Exide Electronics he had several other business aggregating $1 billion revenues.  He also founded of NeuroHealth Foundation in Zug, Switzerland to sponsor Multiple Sclerosis research at the University of Zurich, where interferon was discovered.  He is an active Desert Angel in Tucson, Arizona. 

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Mike Sember, Board Vice Chair

is currently the CEO of Regulonix, a manager at the UAVenture Capital Fund, and a board member of Desert Angels. Recently he was a Mentor in Residence at the University of Arizona Tech Launch AZ. He has over 40 years of experience in the life science and pharmaceutical industries. Earlier in Mike’s career he was with Marion Merrell Dow (now Sanofi). While at Élan, he served as Executive Vice President of Business Development, completing over 80 transactions while leading investment activities, licensing deals, and partnering initiatives. Notable deals include licensing and member of the boards of AMPYRA and Acorda Therapeutics.

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David McCaleb, Board Member

is an active angel investor and board advisor to a number of biotech and technology companies. He has been in the biotech and pharmaceutical industries for almost 40 years and has played a significant role in establishing initial commercial operations for Amgen, Gilead Sciences, Cephalon, and CV Therapeutics. He is an active participant in the Arizona business and start-up community and is on the Board and Screening Committee of Arizona Tech Investors. As the former SVP of Commercial Operations at Gilead Sciences/CV Therapeutics, Mr. McCaleb was responsible for developing the company’s commercial infrastructure their first product, Ranexa®. He directed the worldwide introduction for several billion-dollar products, including Merck’s Vasotec® and Amgen’s Neupogen®. 

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David Stumpf MD, PhD, Scientific Advisor

is Professor Emeritus of Neurology at Northwestern University, and President of Woodstock Health Information and Technology. Dr. Stumpf had a successful clinical and research career in neurology, including Professor and Chairman of the Department of Neurology at Northwestern University Feinberg School of Medicine in Chicago. In 2005, Dr. Stumpf accepted the position of Medical Director of UnitedHealthcare, Illinois, where he became the national Medical Director for Physician Engagement and Improvement, and Senior Vice President for Clinical Data Strategies at the corporate level, where he worked with physicians and their professional societies on plans to help them improve quality and reform payment methods. As a medical informaticist, he worked with the National Quality Forum (NQF and HITAC), the Physician Consortium for Performance Improvement (PCPI), and was a part of several early-stage healthcare information companies.


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