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(A) FESEM and TEM of the PtNp/GCNF nanoparticles. (B) Control diagram of the PtNPs/GCNF-PEI-FA-LOx-Gly-SPCE biosensor under room temperature conditions. At −20°C, the upper limit is three times of the standard deviation of the limit slope (n = 10), electrolyte: 0.1 M PB, pH = 7. Eapp = +0.3 V (error bar, n = 5) (Chen et al., 2004). Reproduced with the permission of 2014 Elsevier B.V.
