Table 1.

Stability of MX-BSA-NS after lyophilization under 4°C

Batches	Time (months)	Appearance	Content (%)	PS (nm)	PI	Zeta potential (mV)
20160826	0	Yellow bulk powder	99.7	90.43	0.155	−8.7
	1	Yellow bulk powder	100.2	91.37	0.136	−8.8
	2	Yellow bulk powder	99.5	91.98	0.147	−8.5
	3	Yellow bulk powder	98.9	92.29	0.158	−9.0
	6	Yellow bulk powder	98.6	92.47	0.154	−8.7
20160827	0	Yellow bulk powder	99.2	89.75	0.147	−8.9
	1	Yellow bulk powder	98.9	90.12	0.156	−8.8
	2	Yellow bulk powder	98.7	90.55	0.149	−8.6
	3	Yellow bulk powder	99.2	91.18	0.153	−8.3
	6	Yellow bulk powder	98.3	90.82	0.166	−8.5
20160828	0	Yellow bulk powder	99.4	90.91	0.139	−8.5
	1	Yellow bulk powder	99.1	90.49	0.148	−9.2
	2	Yellow bulk powder	98.9	91.38	0.154	−8.8
	3	Yellow bulk powder	99.1	92.74	0.145	−8.4
	6	Yellow bulk powder	98.2	91.89	0.143	−8.7

Abbreviations: BSA, bovine serum albumin; MX, meloxicam; NS, nanosuspension; PI, polydispersity index; PS, particle size.