Carbon dots with positive surface charge from tartaric acid and <i>m</i>-aminophenol for selective killing of Gram-positive bacteria
Huibo Wang, Fang Lü, Chongqing Ma, Yurong Ma, Mengling Zhang, Bo Wang, Yue Zhang, Yang Liu, Hui Huang, Zhenhui Kang
Abstract
of CDs with +33.2 ± 0.99 mV can selectively kill Gram-positive bacteria and the antibacterial efficiency can reach approximately >99%. These CDs with positive surface charge can be selectively absorbed on the cell walls of Staphylococcus aureus (S. aureus) via electrostatic interaction and then disturb their physiological metabolism, eventually leading to bacterial death. The present work provides a novel method to adjust the surface charge of CDs and apply these CDs as alternative antibacterial agents.
Topics & Concepts
Tartaric acidBacteriaCarbon fibersMaterials scienceCharge (physics)Gram-negative bacteriaGramNanotechnologyChemistryOrganic chemistryEscherichia coliBiochemistryComposite materialBiologyPhysicsQuantum mechanicsComposite numberCitric acidGeneticsGeneCarbon and Quantum Dots ApplicationsLuminescence and Fluorescent MaterialsNanocluster Synthesis and Applications