Author Affiliations +
Sello Lebohang Manoto,1 Chemist Mabena,1 Rudzani Malabi,1,2 Saturnin Ombinda-Lemboumba,1 Ahmed El-Hussein,3 Mohammed Kasem,3 Masixole Lugongolo,1 Patience Mthunzi-Kufa1,2,4
1CSIR National Laser Ctr. (South Africa)
2Univ. of South Africa (South Africa)
3Cairo Univ. (Egypt)
4Univ. of KwaZulu- Natal (South Africa)