Perylene diimide-based sensors for multiple analyte sensing (Fe2+/H2S/ dopamine and Hg2+/Fe2+): cell imaging and INH, XOR, and encoder logic,Analytical Methods

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Perylene diimide-based sensors for multiple analyte sensing (Fe2+/H2S/ dopamine and Hg2+/Fe2+): cell imaging and INH, XOR, and encoder logic
Analytical Methods ( IF 2.7 ) Pub Date : 2023-04-18 , DOI: 10.1039/d3ay00290j
Navdeep Kaur ₁ , Rasdeep Kour ₂ , Satwinderjeet Kaur ₂ , Prabhpreet Singh ₁

Affiliation

In this report, we present our results on the recognition of multiple analytes using trisubstituted PDI-based chemosensors DNP and DNB in 50% HEPES buffered–CH₃CN solution. Upon the addition of Hg²⁺, DNB showed a decrease and increase in absorbance intensity at 560 and 590 nm, respectively, with a detection limit of 7.17 μM and bleaching of the violet color (de-butynoxy). Similarly, the addition of Fe²⁺ or H₂S to the solution of DNP or DNB resulted in ratiometric changes (A_688nm/A_560nm) with respective detection limits of 185 nM and 27.6 nM for Fe²⁺, respectively, and a color change from violet to green. However, the addition of >37 μM H₂S caused a decrease in absorbance at 688 nm with a concomitant blue shift to 634 nm. Upon the addition of dopamine, the DNP + Fe²⁺ assay showed ratiometric (A_560nm/A_688nm) changes within 10 s along with a color change from green to violet. Moreover, DNP has been successfully used for the exogenous detection of Fe²⁺ in A549 cells. Further, the multiple outputs observed with DNP in the presence of H₂S have been used to construct NOR, XOR, INH and 4-to-2 encoder logic gates and circuits.

中文翻译：

用于多种分析物传感（Fe2+/H2S/多巴胺和 Hg2+/Fe2+）的基于苝二酰亚胺的传感器：细胞成像和 INH、XOR 和编码器逻辑

在本报告中，我们展示了我们在 50% HEPES 缓冲-CH ₃ CN 溶液中使用基于三取代 PDI 的化学传感器DNP和DNB识别多种分析物的结果。添加 Hg ²⁺后，DNB在 560 和 590 nm 处的吸光度强度分别降低和增加，检测限为 7.17 μM 并且紫色（去丁炔氧基）漂白。类似地，向DNP或DNB溶液中添加 Fe ²⁺或 H ₂ S会导致比例变化 ( A _688nm / A _560nm) 的 Fe ²⁺检测限分别为 185 nM 和 27.6 nM，颜色从紫色变为绿色。然而，添加 >37 μM H ₂ S 会导致 688 nm 处的吸光度降低，并伴随蓝移至 634 nm。添加多巴胺后，DNP + Fe ²⁺测定显示比例（A _560nm / A _688nm）在 10 秒内发生变化，颜色从绿色变为紫色。此外，DNP已成功用于A549细胞中Fe ²⁺的外源性检测。此外，在存在 H ₂的情况下使用DNP观察到的多个输出S 已用于构建 NOR、XOR、INH 和 4 对 2 编码器逻辑门和电路。

更新日期：2023-04-18

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