Figure 1: Physicochemical characterization of BN spheres.
From: Hollow boron nitride nanospheres as boron reservoir for prostate cancer treatment
(a) Transmission electron microscopic images of BN nanospheres: BNs-a (a,b), BNs-b (c,d), and BNs-c (e,f). Scale bar: a,c,e, 200 nm; b,d,f, 5 nm. (b) Wide-angle X-ray diffraction patterns of the BN nanospheres. (c) FTIR patterns of the BN nanospheres. (d) Particle size distribution of the BN spheres in water. (e) Suspension of BN spheres in culture medium at 100 μg ml−1. (f) Zeta potential of BNs-a, -b and -c in PBS buffer. (g) Boron release for BNs-a, -b and -c in acetate buffer pH=4.6 at different time. (h) The residual particles after immersing same amount of BNs-a, -b and -c samples in acetate buffer for 1 month.
