Os(II/III) complex supports pH-insensitive electrochemical DNA-based sensing with superior operational stability than the benchmark methylene blue reporter.
Os(II/III) complex supports pH-insensitive electrochemical DNA-based sensing with superior operational stability than the benchmark methylene blue reporter.
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OS(II/III)复合物比基准甲基蓝蓝色报告基因相比,基于pH不敏感的电化学DNA感应具有出色的操作稳定性。
DOI:
10.1039/d2an01901a
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发表时间:
2023-02-13
期刊:
影响因子:
4.2
通讯作者:
Arroyo-Curras, Netzahualcoyotl
中科院分区:
文献类型:
--
作者:
Pellitero, Miguel Aller;Kundu, Nandini;Sczepanski, Jonathan;Arroyo-Curras, Netzahualcoyotl
DNA-based electrochemical sensors use redox reporters to transduce affinity events into electrical currents. Ideally, such reporters must be electrochemically reversible, chemically stable for thousands of redox cycles, and tolerant to changing chemical environments. Here we report the first use of an Os(ii/iii) complex in DNA-based sensors, which undergoes pH-insensitive electron transfer with 35% better operational stability relative to the benchmark methylene blue, making it a promising reporter for continuous molecular monitoring applications where pH fluctuates with time. This study reports an osmium-based redox reporter that enables pH-insensitive and fast DNA-based molecular sensing, offering new possibilities for the study of short-lived dynamic molecular events.
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