Development of a new water sterilization device with a 365 nm UV-LED.

Mori M; Hamamoto A; Takahashi A; Nakano M; Wakikawa N; Tachibana S; Ikehara T; Nakaya Y; Akutagawa M; Kinouchi Y

首页> 外文期刊>Medical and Biological Engineering and Computing: Journal of the International Federation for Medical and Biological Engineering >Development of a new water sterilization device with a 365 nm UV-LED.

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Development of a new water sterilization device with a 365 nm UV-LED.

机译：开发了一种新的带有365 nm UV-LED的水消毒装置。

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Ultraviolet (UV) irradiation is an effective disinfection method. In sterilization equipment, a low-pressure mercury lamp emitting an effective germicidal UVC (254 nm) is used as the light source. However, the lamp, which contains mercury, must be disposed of at the end of its lifetime or following damage due to physical shock or vibration. We investigated the suitability of an ultraviolet light-emitting diode at an output wavelength of 365 nm (UVA-LED) as a sterilization device, comparing with the other wavelength irradiation such as 254 nm (a low-pressure mercury lam) and 405 nm (LED). We used a commercially available UVA-LED that emitted light at the shortest wavelength and at the highest output energy. The new sterilization system using the UVA-LED was able to inactivate bacteria, such as Escherichia coli DH5alpha, Enteropathogenic E. coli, Vibrio parahaemolyticus, Staphylococcus aureus, and Salmonella enterica serovar Enteritidis. The inactivations of the bacteria were dependent on the accumulation of UVA irradiation. Taking advantage of the safety and compact size of LED devices, we expect that the UVA-LED sterilization device can be developed as a new type of water sterilization device.

机译：紫外线（UV）照射是一种有效的消毒方法。在灭菌设备中，使用发射有效杀菌UVC（254 nm）的低压汞灯作为光源。但是，灯泡中含有汞的灯泡必须在其使用寿命结束时或由于物理撞击或振动而损坏后再进行处理。我们比较了其他波长辐射（例如254 nm（低压汞Lam）和405 nm（紫外线），在365 nm输出波长的紫外线发光二极管（UVA-LED）作为灭菌设备的适用性）发光二极管）。我们使用了市售的UVA-LED，它以最短的波长和最高的输出能量发光。使用UVA-LED的新灭菌系统能够灭活细菌，例如大肠杆菌DH5alpha，肠致病性大肠杆菌，副溶血性弧菌，金黄色葡萄球菌和肠炎沙门氏菌肠炎沙门氏菌。细菌的灭活取决于UVA辐射的积累。利用LED设备的安全性和紧凑的尺寸，我们期望UVA-LED消毒设备可以被开发为新型的水消毒设备。

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来源
《Medical and Biological Engineering and Computing: Journal of the International Federation for Medical and Biological Engineering》 |2007年第12期|共5页
作者
Mori M; Hamamoto A; Takahashi A; Nakano M; Wakikawa N; Tachibana S; Ikehara T; Nakaya Y; Akutagawa M; Kinouchi Y;
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正文语种 eng
中图分类医用一般科学;
关键词
Nanometer; Wavelength; Water; Radiation; Mercury; 水; 辐射; 汞;

机译：Nanometer;Wavelength;Water;Radiation;Mercury;水;辐射;汞;

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Development of a new water sterilization device with a 365 nm UV-LED.

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