Rationale: Rapid and facile detection of pathogenic bacteria is challenging due to the requirement of large-scale instruments and equipment in conventional methods. We utilize D-amino acid as molecules to selectively target bacteria because bacteria can incorporate DADA in its cell wall while mammalian cells or fungi cannot.

中文翻译：

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D-丙氨酰-D-丙氨酸修饰的金纳米粒子形成细菌的广谱传感器。

理由：由于常规方法需要大规模的仪器和设备，因此快速，简便地检测病原菌具有挑战性。我们利用D-氨基酸作为分子来选择性地靶向细菌，因为细菌可以在其细胞壁中掺入DADA，而哺乳动物细胞或真菌则不能。