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Development of luminescent atacamite nanoclusters for bioimaging and photothermal applications

机译：发光亚氨基铝石纳米能器的开发，用于生物分析和光热应用

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摘要

Fluorescent atacamite nanoclusters (FANCs) have been developed and modified with silica for Drosophila salivary gland tissue imaging and photothermally induced cell death of osteosarcoma MG-63 cells. FANCs were synthesized with Moringa oleifera leaf extract without using any hazardous reducing and external capping agents. FANC was further used to evaluate light absorption, fluorescence emission, band gap, and magnetic properties as the first report on such nanoclusters. Upon excitation with a 350 nm light source, FANCs exhibited fluorescence at 460 nm, with a relative quantum yield of 0.3%. Besides, silica-encapsulated fluorescent atacamite nanoclusters (SEFANC) manifested remarkable improvement in emission, quantum yield (1.7%), shelf-life (15 d), biocompatibility, and photostability. Concomitantly, it has also increased the absorption in the near-infrared region and demonstrated high heat generation potential (42 degrees C -> 50 degrees C). The above results suggest that FANC can be a potential candidate in the area of nanomedicine for a number of applications such as bioimaging, photothermal therapy, etc.
机译：荧光阿托氨酰胺纳米能器（FANCS）已开发和改性二氧化硅，用于果蝇唾液腺组织成像和骨肉瘤Mg-63细胞的光热诱导的细胞死亡。在不使用任何危险的还原和外部封端剂的情况下用Moringa Oleifera叶提取物合成FANCS。 FANC进一步用于评估荧光吸收，荧光发射，带隙和磁性，作为该纳米能器的第一报告。在用350nm光源激发后，FANCS在460nm处表现出荧光，相对量子收率为0.3％。此外，二氧化硅包封的荧光阿崎纳米铝石纳米能器（SEFANC）表现出发射，量子产率（1.7％），保质期（15d），生物相容性和光稳定性的显着提高。同时，它还增加了近红外区域的吸收，并显示出高发热电位（42℃ - > 50℃）。上述结果表明，FANC可以是纳米医生面积的潜在候选者，用于许多应用，例如生物体，光热疗法等。

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