Silica Nanofibers with Immobilized Tetracycline for Wound Dressing

Table 2

Results of tetracycline analysis: concentration of TC solution in immobilization process, increase of % N after TC immobilization, calculation from rising of N content, not determined, and value from separate analysis of larger sample.

Sample	Concentration; of TC (wt%)	N (wt%)	Estimated; wt% TC	⁢Spectrophotometric measurements			⁢HPLC Analysis
				Total TC; (wt%)	Adsorbed; TC (wt%)	Bound; TC (wt%)	Adsorbed; TC (wt%)	Bound; TC (wt%)
1	1	0.21	2.86	2.88	2.71	0.17	2.61	0.05
2	0.1	0.04	0.63	0.63	0.54	0.09	—	—
2	1	0.20	3.33	3.69	3.52	0.17	—	—
3	1	0.23	3.65	3.69	3.58	0.11	3.59	0.04
4	1	0.26	4.13	3.73	3.68	0.05/0.06	—	—