Laser-assisted fabrication of new ultrasensitive sensors based on Pd/Graphene/Copper heterogeneous layers for glucose detection

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science Pub Date : 2025-05-20 DOI:10.1016/j.apsusc.2025.163588

Chawki Awada , Hassan H. Hammud , Waleed A. Aljamhi , Stefano Boscarino , Antonino Scandurra , Francesco Ruffino

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Abstract

In this work, we report for the first time a new Palladium (Pd)/Graphene (GR)/Copper (Cu) electrode fabricated with a new way that consists of pulsed liquid laser ablation (PLAL) and drop casting. Pd nanoparticles fabricated by PLAL were dropped into a single layer of graphene and dried at 80 °C. Pd/GR/Cu electrodes were tested towards the detection of glucose using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). With both techniques the detection limit was 0.5 mM and the quantification range was between 0.5 mM to 13.0 mM. The sensitivity values were high, 0.245 mA.mM⁻¹.cm⁻² by CV and 81.3 Ohm.mM⁻¹.cm⁻² by EIS. The findings underscore the potential of this novel Pd/GR/Cu electrode as a highly sensitive and stable non-enzymatic sensor for glucose detection, offering significant advancements in biosensing technology.

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基于Pd/石墨烯/铜非均相层的新型超灵敏葡萄糖检测传感器的激光辅助制造

在这项工作中，我们首次报道了一种新的钯(Pd)/石墨烯(GR)/铜（Cu）电极由脉冲液体激光烧蚀（PLAL）和滴铸组成的新方法。将PLAL制备的Pd纳米颗粒滴入单层石墨烯中，并在80 °C下干燥。采用循环伏安法（CV）和电化学阻抗谱法（EIS）对Pd/GR/Cu电极检测葡萄糖进行了测试。两种方法的检出限均为0.5 mM，定量范围为0.5 ~ 13.0 mM。灵敏度值较高，为0.245 mA.mM−1。cm−2通过CV和81.3 O.mM−1。cm−2的EIS。这些发现强调了这种新型Pd/GR/Cu电极作为一种高灵敏度和稳定的非酶传感器用于葡萄糖检测的潜力，为生物传感技术提供了重大进展

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来源期刊

Applied Surface Science 工程技术-材料科学：膜

CiteScore

12.50

自引率

7.50%

发文量

3393

审稿时长

67 days

期刊介绍： Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.