Abstract The excessive utilization of carbon dots (CDs) has led to different fates and perseverance which further prejudiced by various photochemical and other transformations. The mechanistic behaviour of their respective conversions is still very unclear. The present report fulfils this knowledge breach by single step synthesis of CDs with one step synthesis of CDs by thermal treatment by using agarose waste. The formed particles have possessed outstanding quantum yield with value ∼ 62 %. The developed CDs are highly sustainable and non-toxic in nature as compared to organic and inorganic quantum dots as their unknown chemical, physical and optoelectronic properties limit their widespread use. The exceptional luminescence and physicochemical characteristics of developed CDs inspired this research work towards commercial products. With this view, they particles have been successfully applied in recognition of biological component such as aspartic acid. The fluorescence emission intensity of developed CDs reflects extraordinary sensitivity and selectivity towards l -aspartic acid out of twenty amino acids through quenching mechanism in wide concentration range with a linear relationship of 10 μm to 1 nm and value of detection limit was found to be 0.28 nm. Astonishingly, such a sensor can be applied in real world analysis with satisfactory spiked recovery of 98 %. The developed C-dots are pragmatic to real sample recognition and results are highly sustaining.

中文翻译：

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从琼脂糖废物中可持续合成碳点及其在 L-天冬氨酸传感中的前瞻性应用

摘要 碳点（CDs）的过度利用导致了不同的命运和毅力，进一步受到各种光化学和其他转化的影响。他们各自转换的机械行为仍然很不清楚。本报告通过使用琼脂糖废物通过热处理一步合成 CD 来一步合成 CD，从而实现了这一知识突破。所形成的粒子具有出色的量子产率，值为~62%。与有机和无机量子点相比，开发的 CD 具有高度的可持续性和无毒性质，因为它们未知的化学、物理和光电特性限制了它们的广泛使用。开发的 CD 的特殊发光和物理化学特性激发了这项对商业产品的研究工作。有了这个观点，他们的粒子已成功应用于识别天冬氨酸等生物成分。开发的CDs的荧光发射强度通过淬灭机制在宽浓度范围内反映了对20个氨基酸中的l-天冬氨酸的非凡灵敏度和选择性，线性关系为10 μm至1 nm，检测限值为0.28 nm . 令人惊讶的是，这种传感器可以应用于现实世界的分析，其加标回收率为 98%。开发的C-dots对于真实样本识别非常实用，结果具有高度的可持续性。开发的CDs的荧光发射强度通过淬灭机制在较宽的浓度范围内反映了对20个氨基酸中的l-天冬氨酸的非凡灵敏度和选择性，线性关系为10μm至1nm，检测限值为0.28nm . 令人惊讶的是，这种传感器可以应用于现实世界的分析，其加标回收率为 98%。开发的C-dots对于真实样本识别非常实用，结果具有高度的可持续性。开发的CDs的荧光发射强度通过淬灭机制在较宽的浓度范围内反映了对20个氨基酸中的l-天冬氨酸的非凡灵敏度和选择性，线性关系为10μm至1nm，检测限值为0.28nm . 令人惊讶的是，这种传感器可以应用于现实世界的分析，其加标回收率为 98%。开发的C-dots对于真实样本识别非常实用，结果具有高度的可持续性。