Harold Freeman

Bio

Prof. Freeman is a native North Carolinian, who worked as an organic chemist for 9.5 years at Burroughs-Wellcome Company and then joined N.C. State as Associate Professor of textile chemistry in 1982.  Following 35 years of teaching, research, and administration, he retired from his full-time appointment in the Wilson College of Textiles.

Area(s) of Expertise

Dye Design and Synthesis
Textile and Color Chemistry

Publications

• The natural anthraquinone dye emodin: Eco/genotoxicological characterization for aquatic organisms , FOOD AND CHEMICAL TOXICOLOGY (2024)
• Acryloyl esters of emodin for waterless dyeing and toxicological studies , COLORATION TECHNOLOGY (2023)
• Evaluation of the Toxicological and Color Properties of Anionic Hydrophobic Monoazo Dyes for Sustainable Human Hair Coloration , ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2022)
• Mutagenicity of dyes: a call to fill the knowledge gaps and improve our predictive ability , TOXICOLOGY LETTERS (2022)
• Pomegranate peel extract and zinc oxide as a source of natural dye and functional material for textile fibers aiming for photoprotective properties , MATERIALS CHEMISTRY AND PHYSICS (2022)
• Waterless Dyeing and In Vitro Toxicological Properties of Biocolorants from Cortinarius sanguineus , JOURNAL OF FUNGI (2022)
• A fungal-based anthraquinone emodin for polylactide and polyethylene terephthalate in supercritical carbon dioxide (SC-CO2) dyeing , COLOR RESEARCH AND APPLICATION (2021)
• Copaifera langsdorffii Desf. bark extract: optimisation of dyeing conditions to wool and colour fastness properties , NATURAL PRODUCT RESEARCH (2021)
• In situ Chelation of Monoazo Dyes in Human Hair Keratin Fibers Using Environmentally Benign Metal Ions , ACS Applied Bio Materials (2021)
• Isomeric tetrazole-based organic dyes for dye-sensitized solar cells: Structure-property relationships , JOURNAL OF MOLECULAR STRUCTURE (2021)

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