Abstract
TiO2 nanofiber films were prepared by a homemade electrostatic spray method at 13 kV using a high power supply. As-prepared TiO2 was used to sterilize enteropathogenic Escherichia coli in polluted water by using near-UV LEDs at three different wavelengths with variable exposure time and frequency of irradiation. Irrespective of the wavelength of the light source used, longer irradiation times such as 1 h completely inactivated the E. coli. However, a wavelength of 375 nm was effective in inactivating in a shorter irradiation time (15 min). When the frequency of irradiation was 1 kHz, almost 95% of the E. coli was inactivated after 30 min exposure.
| Original language | English |
|---|---|
| Article number | 014011 |
| Journal | Physica Scripta T |
| Volume | T139 |
| DOIs | |
| Publication status | Published - Jul 23 2010 |
| Externally published | Yes |
| Event | 3rd International Symposium on Functional Materials 2009, ISFM 2009 - Jinju, Korea, Republic of Duration: Jun 15 2009 → Jun 18 2009 |
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All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- Mathematical Physics
- Condensed Matter Physics
- Physics and Astronomy(all)
Cite this
Sterilization of Escherichia coli by using near-UV LED and TiO2 nanofibers that were prepared by using electrostatic spray. / Lee, Dong Gil; Hong, Ji Tae; Son, Minkyu; Lee, Kyoung Jun; Xu, Guo Cheng; Prabakar, Kandasamy; Kim, Hee Je.
In: Physica Scripta T, Vol. T139, 014011, 23.07.2010.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Sterilization of Escherichia coli by using near-UV LED and TiO2 nanofibers that were prepared by using electrostatic spray
AU - Lee, Dong Gil
AU - Hong, Ji Tae
AU - Son, Minkyu
AU - Lee, Kyoung Jun
AU - Xu, Guo Cheng
AU - Prabakar, Kandasamy
AU - Kim, Hee Je
PY - 2010/7/23
Y1 - 2010/7/23
N2 - TiO2 nanofiber films were prepared by a homemade electrostatic spray method at 13 kV using a high power supply. As-prepared TiO2 was used to sterilize enteropathogenic Escherichia coli in polluted water by using near-UV LEDs at three different wavelengths with variable exposure time and frequency of irradiation. Irrespective of the wavelength of the light source used, longer irradiation times such as 1 h completely inactivated the E. coli. However, a wavelength of 375 nm was effective in inactivating in a shorter irradiation time (15 min). When the frequency of irradiation was 1 kHz, almost 95% of the E. coli was inactivated after 30 min exposure.
AB - TiO2 nanofiber films were prepared by a homemade electrostatic spray method at 13 kV using a high power supply. As-prepared TiO2 was used to sterilize enteropathogenic Escherichia coli in polluted water by using near-UV LEDs at three different wavelengths with variable exposure time and frequency of irradiation. Irrespective of the wavelength of the light source used, longer irradiation times such as 1 h completely inactivated the E. coli. However, a wavelength of 375 nm was effective in inactivating in a shorter irradiation time (15 min). When the frequency of irradiation was 1 kHz, almost 95% of the E. coli was inactivated after 30 min exposure.
UR - http://www.scopus.com/inward/record.url?scp=77954690780&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77954690780&partnerID=8YFLogxK
U2 - 10.1088/0031-8949/2010/T139/014011
DO - 10.1088/0031-8949/2010/T139/014011
M3 - Conference article
AN - SCOPUS:77954690780
VL - T139
JO - Physica Scripta
JF - Physica Scripta
SN - 0031-8949
M1 - 014011
ER -