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USD 45 /hr

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Hire Dr. Krzysztof Z.

Poland

USD 45 /hr

Freelancer life science researcher, project manager, quality manager.

Profile Summary

I hold PhD in Organic Chemistry. I have 8 years of experience in university labs. Over three years of experince in private institutions R&D (1 year in cosmetics and domestic chemistry, 2 years in organic and medicinal chemistry), 5 years as quality manager . I leaded several projects during the past 10 years, the most interesting projects included: * aquaculture and insect rearing in Saudi Arabia * quality control and R&D in medicinal products for company in California * R&D in new acne products in California * formulation of supplements Currently I assist in the development of two cosmetic ingredient databases, I analyze the data regarding the safety of cosmetic ingredients. I have vast knowledge and experience, I excel especially when the research and data analysis is required.

Subject Matter Expertise

• ★ Medicinal Chemistry
• ☆ Natural Product Chemistry
• ☆ Organic Chemistry
• ☆ Biochemistry
• ☆ Bioinformatics
• ☆ Food Chemistry
• ☆ Skin Care & Cosmetology
• ☆ Herbal Medicine
• ☆ Quality Assurance & Quality Control (QA/QC)
• ☆ Formulation
• ☆ Cosmetic Formulation
• ☆ Cosmetic & Skincare Formulation
• ☆ Supplements
• ☆ Project Management

Services

• Writing
• Research
• Consulting
• Data & AI
• Product Development

Writing Medical Writing, Technical Writing

Research Market Research, User Research, Meta-Research, Feasibility Study, Fact Checking, Gap Analysis, Gray Literature Search, Systematic Literature Review, Secondary Data Collection

Consulting Scientific and Technical Consulting, Regulatory Consulting

Data & AI Statistical Analysis, Big Data Analytics

Product Development Formulation, Stability/Shelf Life Testing, Product Evaluation, Material Sourcing, Concept Development, Prototyping

Work Experience

Head of Quality

ANG Science

March 2017 - Present

Education

PhD (Chemistry)

Technical University of Lodz - Poland

October 2003 - January 2010

Certifications

• Certification details not provided.

Publications

JOURNAL ARTICLE

Krzysztof Zając, Marzena Zając, Jakub Dybaś(2022). The effect of nitric oxide synthase and arginine on the color of cooked meat . Food Chemistry. 373. p. 131503. Elsevier {BV}

Krzysztof Zając, Michał Arabski, Iwona Konieczna, Ewa Tusińska, Sławomir Wąsik, Inga Relich, Zbigniew J. Kamiński, Wiesław Kaca(2015). The use of lysozyme modified with fluorescein for the detection of Gram-positive bacteria . Microbiological Research. 170. p. 242--247. Elsevier {BV}

Zajac K, Zbigniew Kaminski (2010). An approach towards efficient peptide synthesis in aqueous solution. Acta poloniae pharmaceutica.

Z J Kamiński, K J Zajac, K Jastrzabek(2001). Synthesis and application of chiral triazine condensing reagents prepared from esters of amino acids . Acta Biochimica Polonica. 48. (4). p. 1143--1146. Polskie Towarzystwo Biochemiczne (Polish Biochemical Society)

PATENT

Krzysztof Zajac, Sven Nerdinger, Martin Albert, Waldemar Szczepanik, Jorg Salchenegger, Joanna Fogt (2016). WO2016023913A1 Process for the preparation of 3-[(1r,2r)-3-(dimethylamino)-1-ethyl-2-methylpropyl]-phenol .

EP2407460A1 .