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@ARTICLE{Li:891310,
      author       = {Li, Yongqiang and Ma, Peixiang and Tao, Quan and Krause,
                      Hans-Joachim and Yang, Siwei and Ding, Guqiao and Dong, Hui
                      and Xie, Xiaoming},
      title        = {{M}agnetic graphene quantum dots facilitate closed-tube
                      one-step detection of {SARS}-{C}o{V}-2 with ultra-low field
                      {NMR} relaxometry},
      journal      = {Sensors and actuators / B},
      volume       = {337},
      issn         = {0925-4005},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2021-01417},
      pages        = {129786 -},
      year         = {2021},
      abstract     = {The rapid and sensitive diagnosis of the highly contagious
                      severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
                      is one of the crucial issues at the outbreak of the ongoing
                      global pandemic that has no valid cure. Here, we propose a
                      SARS-CoV-2 antibody conjugated magnetic graphene quantum
                      dots (GQDs)-based magnetic relaxation switch (MRSw) that
                      specifically recognizes the SARS-CoV-2. The probe of MRSw
                      can be directly mixed with the test sample in a fully sealed
                      vial without sample pretreatment, which largely reduces the
                      testers’ risk of infection during the operation. The
                      closed-tube one-step strategy to detect SARS-CoV-2 is
                      developed with homemade ultra-low field nuclear magnetic
                      resonance (ULF NMR) relaxometry working at 118 μT. The
                      magnetic GQDs-based probe shows ultra-high sensitivity in
                      the detection of SARS-CoV-2 due to its high magnetic
                      relaxivity, and the limit of detection is optimized to 248
                      Particles mL‒1. Meanwhile, the detection time in ULF NMR
                      system is only 2 min, which can significantly improve the
                      efficiency of detection. In short, the magnetic GQDs-based
                      MRSw coupled with ULF NMR can realize a rapid, safe, and
                      sensitive detection of SARS-CoV-2.},
      cin          = {IBI-3},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IBI-3-20200312},
      pnm          = {5241 - Molecular Information Processing in Cellular Systems
                      (POF4-524)},
      pid          = {G:(DE-HGF)POF4-5241},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:33753963},
      UT           = {WOS:000640386700002},
      doi          = {10.1016/j.snb.2021.129786},
      url          = {https://juser.fz-juelich.de/record/891310},
}