It is with great sadness that we announce the passing of

Dr. Gordon L. Hug

an outstanding radiation chemist and photochemist, collaborator and friend of many Polish scientists, laureate of the Maria Skłodowska-Curie Medal.

Dr. Hug died on January 13, 2024, at the age of 81.

      Gordon L. Hug graduated from Southern Illinois University (USA) and obtained his doctorate in 1970 from the University of Chicago. He worked as a post-doc at the Universities of Tallahasee and Houston, and from 1976 he was associated with the Notre Dame Radiation Laboratory (Notre Dame University, USA), a leading radiation research center in the world. Scientific interests of Dr. Gordon Hug covered a wide range of issues related to photochemistry, photophysics and radiation chemistry of organic compounds. He was a high-class specialist in free radical chemistry, electron transfer processes, and quenching of triplet states in aqueous-organic solutions. Dr. Hug has co-authored over 150 scientific publications in top journals. He was also co-author of the monograph "Handbook of Photochemistry" (Marcel Dekker, 1993).

      Gordon Hug had very close ties with Poland. For many years, he has been collaborating with scientists from the University of Adam Mickiewicz in Poznań, Institute of Nuclear Chemistry and Technology in Warsaw, Lodz University of Technology, and other Polish research institutions. For 18 months he worked at the Adam Mickiewicz University in Poznań as a Fulbright Fellow. He was a mentor to numerous researchers from Poland visiting the Notre Dame Radiation Laboratory. The list of his publications with Polish co-authors includes almost 100 items.

     For many of us, Gordon Hug was not only a valued colleague, but simply a friend. We will miss him.