Rajoriya Komal, Meena Ramhari, Kumari Anita
Department of Chemistry, University of Rajasthan, Jaipur, 302004, India.
J Fluoresc. 2024 Sep 17. doi: 10.1007/s10895-024-03924-1.
In this research, CNDs were prepared by a green and cost effective method using Cinnamomum Tamala (bay leaf) as carbon sources. TEM, UV, FTIR, ZETA Potential, PL and Fluorescence methods were used to characterize the produced CNDs and the average particle size is 3.42 nm. This research was conducted on the development of fluorescent sensors for various metal ions, including Fe, Cu, Zn, Ni, Pb, Cr, Mg, Na and Cd. The CNDs demonstrated selective sensing of biologically important Fe and Cu metal ions. The CNDs antioxidant assay was tasked with DPPH• radical scavenging properties. CNDs made from Cinnamomum Tamala had the highest DPPH free radical scavenging activity at 100 mg/L (42.06%) with the IC of 130.68 mg/L. The outcome implies that Indian spices are among the best materials for optical metal ion detection and sensing, and they also have therapeutic benefits.
在本研究中，以锡兰肉桂（月桂叶）作为碳源，通过一种绿色且经济高效的方法制备了碳纳米点。采用透射电子显微镜、紫外、傅里叶变换红外光谱、zeta电位、光致发光和荧光方法对所制备的碳纳米点进行表征，其平均粒径为3.42纳米。本研究致力于开发用于检测包括铁、铜、锌、镍、铅、铬、镁、钠和镉在内的各种金属离子的荧光传感器。碳纳米点对具有生物学重要性的铁和铜金属离子表现出选择性传感。碳纳米点的抗氧化测定考察了其对二苯基苦味酰基自由基的清除特性。由锡兰肉桂制备的碳纳米点在100毫克/升时具有最高二苯基苦味酰基自由基清除活性（42.06%），半数抑制浓度为130.68毫克/升。该结果表明，印度香料是用于光学金属离子检测和传感的最佳材料之一，并且它们还具有治疗益处。
