Volker Hessel

A Review on Janus Nanoparticles: Duality Leading to Prospective Multipotent Applications

Janus nanoparticles (JNPs), named after the bi-faced Roman God has emerged as a hot topic in the present era of nanoscience because of their chemical, structural and physical uniqueness. These particles stand out in the crowd as they are composed of two or more faces with contras...

Stability of Medicinal Nanoemulsions to Spaceflight: Insights From the StarMed Experiment

Space missions require liquid drug formulations that remain physically stable and exhibit predictable release under launch, microgravity, and handling stresses. This study examined melatonin‑loaded nanoemulsions flown on the MAPHEUS‑15 sounding rocket, comparing an uncoated nanoe...

Toward a Compost Pharmacopoeia—A Conceptual Framework for Standardisation and Classification of Compost Quality

Compost quality assessment remains challenging due to substantial variation in standards, analytical methods, and reporting practices across jurisdictions and end-use applications. Differences in testing protocols and quality criteria limit data comparability among studies and co...