Single-Crystal to Single-Crystal Transformation of Metal–Organic Framework Nanoparticles for Encapsulation and pH-Stimulated Release of Camptothecin

The phenomenon of single-crystal to single-crystal transformation and the performance change along with the transformation have been widely discovered, whereas the efficient utilization of the crystal transformation process is less reported. Herein, we present an interesting thermally driven single-crystal to single-crystal transformation of HNU-43. During transformation, the effective encapsulation of camptothecin (CPT) has been achieved as...