Non-blinking dendritic crystals from C-dot solution

作者：Mewada Ashmi; Vishwakarma Ritesh; Patil Bhushan; Phadke Chinmay; Kalita Golap; Sharon Maheshwar; Sharon Madhuri

来源：Carbon Letters, 2015, 16(3): 211-214.

DOI：10.5714/CL.2015.16.3.211

• carbon dots
• fluorescence
• crystal morphology
• dendrites
• hydrothermal crystal growth

Bio-imaging and drug carriers for delivery have created a huge demand for crystals. Crystals are fascinating materials that have been grown for a long time but obtaining biocompatible fluorescent crystals is a challenging task. We report on the growth of fluorescent crystals using a carbon dot (C-dot) solution by a hydrothermal process. The crystallization pattern of these C-dots exhibited a unique dendritic structure having a feather-like morphology. The growth temperature and pressure were maintained at 60 degrees C and 200 mmHg, respectively, for crystal growth. A green fluorescence (under UV light) that was observed in the C-dot solution was retained in the crystals formed from the solution. Cytotoxicity studies on Vero cells revealed the crystals to be extremely biocompatible. These fluorescent crystals are extremely well suited for biomedical and optoelectronic applications.

• 出版日期2015-9