- 标题
- 摘要
- 关键词
- 实验方案
- 产品
-
<i>Candida albicans</i> Sterilization Using a Light-Emitting Diode and Methylene Blue
摘要： Background and aims: Conventional fungal treatment using external medication requires considerable time and effort. We herein examined the basic effect of methylene blue (MB) with sodium bicarbonate (NaHCO3) on Candida albicans sterilization using photodynamic antimicrobial chemotherapy (PACT). Materials and methods: NaHCO3 was added to MB to establish a basic pH. Then, C. albicans was smeared on a medium with basic MB followed by irradiation using a red light-emitting diode (LED) with a wavelength of 660 nm. The applied energy fluencies were 5, 10, 15, and 20 J/cm2. After 48 h of culture, the effects of the intervention were determined according to the fungal growth area. Results: The basic effect appeared at a pH range of 8.6 to 8.9 and at 10 and 15 J/cm2, while the NaHCO3 concentration was between 1% and 2%. Conclusions: Our results suggested that PACT using basic MB was effective for C. albicans sterilization.
关键词： C. albicans,basic effect,methylene blue,LED,PACT,sodium bicarbonate
更新于2025-09-11 14:15:04
-
Baking soda: an ultra-cheap and air stable electron injection layer for organic electronic devices
摘要： To realize high performance printed organic optoelectronic devices, the development of air-stable, cheap, and solution-processable electron injection layers (EILs) is urgently required to avoid the use of a low work-function metal electrode with poor air stability. We report sodium bicarbonate (baking soda, NaHCO3) as an efficient, low-cost, air-stable, and environmentally friendly EIL material in various printed organic electronic devices including organic solar cells (OSCs), organic light-emitting diodes (OLEDs), organic photodiodes (OPDs) and n-channel organic thin film transistors (OFETs). UV photoelectron spectroscopy results indicated that the work-function of various common electrodes used for organic devices such as ITO, Au, Al and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) decreased significantly by more than 1 eV following deposition of a thin NaHCO3 film. The performance and stability of these organic devices improved by around 15% overall with ultra-cheap, air stable EILs. In particular, high performance OSCs based on PTB7:PC71BM with a power conversion efficiency of 8.40% and solution processed OLEDs based on PVK:PBD:Ir(ppy)3 with light emitting efficiencies of 68.5 cd A?1 and 20 lm A?1 were achieved by applying a NaHCO3 interlayer.
关键词： air-stable,sodium bicarbonate,organic electronic devices,electron injection layers,baking soda,low-cost,solution-processable
更新于2025-09-04 15:30:14