Folic Acid-Conjugated Silica-Modified TbPO₄·H₂O Nanorods for Biomedical Applications

Figure 2

FESEM images of the TbPO₄·H₂O samples with molar ratios of Tb³⁺/PO₄^3- are (a) 1/15, (b) 1/10, (c) 1/5, (d) 1/1, and (e) nanocomplexes protected with silica and attached with amine groups (molar ratio of Tb³⁺/PO₄^3- is 1/1).

(a)

(b)

(c)

(d)

(e)