Plant Part-Derived Carbon Dots for Biosensing

We provide a review of the progress of Carbon dots derived from various plant parts with their synthesis methods, optical properties, and biosensing applications in the last five years

Muhammad Zulfajri; Hani Nasser Abdelhamid; Sri Sudewi; Sandhiya Dayalan; Akhtar Rasool; Ahsan Habib; Genin Gary Huang

2020

Scholarcy highlights

  • Carbon dots were initially serendipitously discovered in 2004 as fluorescent impurities during the purifying of single-walled carbon nanotubes
  • The findings showed that this system had good selectivity towards adenosine triphosphate
  • Insignificant decreases in FL intensity were observed after adding metal ions into the CDs. These findings showed that CDs are selective to V5+
  • CDs synthesized from various plant parts including stems, flowers, fruits, biosensors were discussed
  • The heteroatom doping obtained by self-passivation provides an excellent effect on their optical properties, generating powerful applications
  • FL quenching showed a linearity with concentrations of Fe3+ ions of between 0.05 and 500 μM with over 50% quenching at 500 μM Fe3+
  • The CDs have proven their benefits in biosensing applications due to their easy synthesis, low cytotoxicity, and superior optical properties
  • The biosensing applications of plant part-derived Carbon dots in the sensing of microwave-assisted hydrothermal methods, pyrolysis, and chemical oxidation were overviewed

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