Fig. 4From: Applications of carbon dots and its modified carbon dots in bone defect repairFluorescent microscopic images showing MG 63 cells growing in tissue culture wells after 7 days of culture: (a) control (without nanomaterial), (b) HAP (100 μg mL-1), (c) CD (100 μg mL-1), (d) CD@HAP composite (100 μg mL-1) and (e) CD@HAP composite (200 mg mL-1). Scale bar represents 100 mmBack to article page