Fig. 4From: Designing of robust and sensitive assay via encapsulation of highly emissive and stable blue copper nanocluster into zeolitic imidazole framework (ZIF-8) with quantitative detection of tetracyclineA XRD patterns of the prepared ZIF-8 and CuNCs@ZIF-8; B (a) FTIR spectrum of ZIF-8 (black line) and (b) CuNCs@ZIF-8 (red line)Back to article page