Labelling stem cells with a nanoprobe for evaluating the homing behaviour in facial nerve injury repair

Abstract

It is crucial and clinically relevant to clarify the homing efficiency and retention of stem cells in different implanting strategies of the cell therapy for various injuries. However, the need...

Nanoparticle-Based Photodynamic Inhibition of Candida albicans Biofilms with Interfering Quorum Sensing

“…NaYF 4 :20%Yb,0.2%Er@NaGdF 4 and BaGdF 5 :20%Yb,0.2%Er nanoparticles were prepared according to our previous reports. , First, the precursors, including (CF 3 COO)­Na, (CF 3 COO) 2 Ba, (CF 3 COO) 3 Gd, (CF 3 COO) 3 Yb, and (CF 3 COO) 3 Er, were prepared by dissolving the corresponding metallic oxides in TFA/water (1:1) solutions and stirring with heating at 150 °C till we got clear solutions, and the precursors were collected after drying. Then, for the synthesis of NaYF 4 :20%Yb,0.2%Er@NaGdF 4 , the core precursor solution including CF 3 COONa (1 mmol), (CF 3 COO) 3 Y (0.798 mmol), (CF 3 COO) 3 Er (0.2 mmol), (CF 3 COO) 3 Tm (0.002 mmol), ODE (2.5 mL), and OA (2.5 mL) and the shell precursor solution including (CF 3 COO) 3 Gd (1 mmol), sodium oleate (0.63 mmol), ODE (7.5 mL), and OA (7.3 mL) were prepared by stirring at 100 °C under vacuum conditions for 1 h until the mixtures become clear.…”