01758nas a2200145   4500008004100000245012900041210006900170260000800239300001800247490000600265520123700271100003001508700003101538856004301569       2021                        eng d00a2D MoO2/N-Doped-carbon nanosheets as SERS tweezers: a non-noble metal reusable substrate for selective organic dye detection0 a2D MoO2NDopedcarbon nanosheets as SERS tweezers a nonnoble metal  cNOV  a11611 - 116240 v43 aThe design and synthesis of a highly sensitive and exceptionally selective surface-enhanced Raman scattering (SERS) substrate with an excellent reusable property are of significant interest because of its vast prospective application in actual and complicated detection environments. Here, a simple synthesis strategy was presented to fabricate crystalline two-dimensional (2D) MoO2/N-doped-carbon nanosheets with the plasmonic property. The morphology, crystal phase, and surface property of MoO2 nanomaterials (NMs) were specifically controlled under suitable reaction conditions. In addition, the plasmonic MoO2/N-doped-carbon NM exhibited a SERS maximum enhancement factor up to 1.38 × 104 with a detection limit as low as 1.0 × 10–6 M. More importantly, the as-synthesized nanocomposite shows high selectivity as a “SERS Tweezer” toward methylene blue (MB) in binary and ternary mixed interfering analyte solutions, preserving detection sensitivity toward MB for three cycles via an “elect-and-eliminate” approach. This strategy will be helpful to design other plasmonic semiconductor NMs for successful tangible applications of selective SERS sensing for trace impurity detections in real and complex environments.1 aGaikwad, Supriya, Hanmant1 aMukherjee, Shatabdi, Porel  uhttps://doi.org/10.1021/acsanm.1c02151