Table 1. Prepared bio-inks with different compositions .

BIO-INK	Alginate (mg/ml)	Methylcellulose (mg/ml)	Halloysite (mg/ml)	RO (mg/ml)
T-1	10	10	10	10
T-2	10	10	20	10
T-3	10	20	10	10
T-4	10	20	20	10
T-5	20	10	10	10
T-6	20	10	20	10
T-7	20	20	10	10
T-8	20	20	20	10