Table 3.

Different factors and conditions that affect the morphology of hNFs.

Enzyme	Morphology				Reference
Type of enzyme used	1.Enzyme: Glucose oxidase (GOx)	2.Enzyme: Laccase	3.Enzyme: Catalase	4.Enzyme: Lipase	[35,52]
Different amount of the enzyme # Example 1	5.0.01 g Lipase	6.0.025 g Lipase	7.0.05 g Lipase	8.0.10 g Lipase	[35]
Different amount of the enzyme # Example 2	9.0.025 g papain	10.0.05 g papain	11.0.1 g papain	12.0.25 g papain	[41]
Metal ion	Morphology
Type of metal ion used	13.Copper	14.Cadmium	15.Cobalt	-	[29]
Reaction pH	Morphology
Different pH values	16.pH 6	17.pH 7.4	18.pH 8	19.pH 9	[69]
Reaction temperature	Morphology
Different reaction temperature # Example 1	20.Temperature: Below Tt, at 4 °C ELP/Ca hNFs	21.Temperature: Above Tt, at 37 °C ELP/Ca hNFs	22.Temperature: Below Tt, at 4 °C ELP/Cu hNFs	23.Temperature: Above Tt, at 37 °C ELP/Cu hNFs	[93]
Different reaction temperature # Example 2	24.Temperature: 20 °C	25.Temperature: 30 °C	26.Temperature: 40 °C	27.Temperature: 60 °C	[35]
Different reaction temperature # Example 3	28.Temperature: 4 °C	29.Temperature: 20 °C	-	-	[51]
Reaction time	Morphology
Different reaction time	30.Time: 2 h	31.Time: 8 h	32.Time: 24 h	-	[39]