1. UoN Chair of Oman’s Medicinal Plants and Marine Natural Products, University of Nizwa, Nizwa, Sultanate of Oman
2. Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California-San Diego, La Jolla, CA 92093-0204, USA
3. Department of Chemistry and Polymer Science, University of Stellenbosch, Stellenbosch, South Africa