Table 2.

Description of other studies that have been conducted on nano collagen fabrication, intervention and its potential use on skin wounds.

Author(s)	Nano Collagen Source	Summary of Intervention	Results
Pringgandini LA et al., 2018 [89]	Goldfish scales (Cyprinus carpio)	Collagen extraction and purification followed by freeze-drying, producing nano collagen powder spray.	Accelerated healing of incision wound in mice.
Kochar MP et al., 2020 [90]	Collofiber-MM™, collagen type I, naturally sourced (not specified)	Fabrication process not stated, powder product used consists of collagen nano particles, mupirocin and metronidazole and was applied onto chronic ulcers of 100 patients.	Re-epithelialisation and early ulcer healing, reduces exudate secretion and bacterial colonisation.
Van Duong H et al., 2018 [49]	Catfish skin waste (Pangasius bocourti)	Fabrication of water-dispersible nano collagen helices, can be made into sponge-like aerogels.	Highly versatile applications as wound dressings, bandages and tissue-engineering scaffolds.