title: Influence of electromagnetic signal of antibiotics excited by low-frequency pulsed electromagnetic fields on growth of Escherichia coli.
abstract: Energy medicine (EM) provides a new medical choice for patients, and its advantages are the noninvasive detection and nondrug treatment. An electromagnetic signal, a kind of EM, induced from antibiotic coupling with weak, extremely low-frequency pulsed electromagnetic fields (PEMFs) is utilized for investigating the growth speed of Escherichia coli (E. coli). PEMFs are produced by solenoidal coils for coupling the electromagnetic signal of antibiotics (penicillin). The growth retardation rate (GRR) of E. coli is used to investigate the efficacy of the electromagnetic signal of antibiotics. The E. coli is cultivated in the exposure of PEMFs coupling with the electromagnetic signal of antibiotics. The maximum GRR of PEMFs with and without the electromagnetic signal of antibiotics on the growth of E. coli cells in the logarithmic is 17.4 and 9.08%, respectively. The electromagnetic signal of antibiotics is successfully coupled by the electromagnetic signal coupling instrument to affect the growth of E. coli. In addition, the retardation effect on E. coli growth can be improved of by changing the carrier frequency of PEMFs coupling with the electromagnetic signal of antibiotics. GRR caused by the electromagnetic signal of antibiotics can be fixed by a different carrier frequency in a different phase of E. coli growth.
authors.affiliation: Department of Electrical Engineering and Center for Micro/Nano Science and Technology, National Cheng Kung University, 1 University Road, Tainan, 701, Taiwan.
authors.forename: Yin-Lung
authors.initials: YL
authors.lastname: Ke
authors.forename: Fu-Yu
authors.initials: FY
authors.lastname: Chang
authors.forename: Ming-Kun
authors.initials: MK
authors.lastname: Chen
authors.forename: Shun-Lai
authors.initials: SL
authors.lastname: Li
authors.forename: Ling-Sheng
authors.initials: LS
authors.lastname: Jang
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D004574:Electromagnetic Fields; D004926:Escherichia coli / Q000187:drug effects* / Q000254:growth & development; D010406:Penicillins / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D010406:Penicillins