. 2017 Aug 3;7:7250. doi: 10.1038/s41598-017-07598-7

Table 1.

Characterization of the physical and chemical properties of COD crystals with various shapes.

Crystal morphology and abbreviation	Crystal size/μm	Additive	I₁₀₀/I₂₁₁	Specific surface area S_BET /m²/g	Zeta potential in culture medium/mV	Conductivity/μS/cm
COD-flower-like (COD-FL)	4.8 ± 0.3	Na₂EDTA	1.46	2.79	−6.01 ± 1.32	43.3 ± 0.92
COD-cross-shaped (COD-CS)	5.2 ± 0.5	Na₂EDTA	1.33	3.04	−5.75 ± 1.19	48.2 ± 1.17
COD-bipyramid (COD-BD)	4.9 ± 0.2	SDS	3.43	5.33	−12.6 ± 1.68	35.7 ± 0.74
COD-elongated-bipyramid (COD-EBD)	4.7 ± 0.4	SDS	4.10	5.81	−10.9 ± 2.62	33.6 ± 1.85