[1] Univ KwaZulu Natal, Sch Chem & Phys, Peptide Sci Lab, ZA-4001 Durban, South Africa
[2] Univ KwaZulu Natal, Coll Hlth Sci, Sch Lab Med & Med Sci, KwaZulu Natal Res Innovat & Sequencing Platform K, ZA-4041 Durban, South Africa
[3] Univ Barcelona, BBN Networking Ctr Bioengn Biomat & Nanomed, CIBER BBN, Barcelona, Spain
[4] Univ Barcelona, Dept Organ Chem, Barcelona, Spain
[5] CSIC, Inst Adv Chem Catalonia IQAC, Barcelona, Spain