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- W3136850470 abstract "A simple and sensitive electrochemical sensor is designed for evaluating nitrite (NO2−) in cured meat by using the functionalized mesoporous carbon composites (CMK-8) as sensing interface. Herein, the synthesized CMK-8 with 3-D bicontinuous cubic (Ia3d) space groups has obvious electrochemical superiority over the usual CMK-3 with 2-D hexagonal (p6mm) space groups, and offers a powerful platform for gold nanoparticles (AuNPs) decoration inside and outside the ordered carbon pores via electrostatic adsorption and size matching. Benefitting from the synergistic effects of AuNPs and CMK-8 under suitable ratio, AuNPs-CMK-8 provides a favorable biocompatible microenvironment for hemoglobin (Hb) attachment, and also accelerates electron transfer between NO2− and active centers of Hb. The electrochemical determination is accomplished through one-step catalytic process without complicated operation or multiple reagents, greatly improving temporal efficiency. The limit of detection (LOD) as low as 2.1 nM (corresponding to 0.097 ppb by weight) is well qualified for the requirement for rapid monitoring nitrite in cured meat. Overall, the sensing strategy possesses the characteristics of excellent sensitivity, anti-interference ability, and single-step fashion, giving a promising solution to evaluate nitrite residual for ensuring cured meat safety." @default.
- W3136850470 created "2021-03-29" @default.
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- W3136850470 date "2021-07-01" @default.
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- W3136850470 title "Single-step electrochemical sensing toward ppb-level nitrite in cured meat sensitized with functionalized Ia3d mesoporous carbon" @default.
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- W3136850470 doi "https://doi.org/10.1016/j.snb.2021.129846" @default.
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