The effect of titanium dioxide (TiO2) nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation

Today, nanoparticles are used in many products. One of the most common nanoparticles is titanium dioxide (TiO2). These particles generate reactive oxygen species (ROS) upon UV irradiation. Although nanoparticles are very useful in many products, there are concerns about their biological and ecologic...
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Autor*in:	Iwahashi, Hitoshi [verfasserIn] Yamada, Ikuho Nomura, Kazuki Horie, Masanori

Format:	Artikel
Sprache:	Englisch

Erschienen:	2016

Rechteinformationen:	Nutzungsrecht: Copyright © 2015 Elsevier Ltd. All rights reserved.

Systematik:	AR 10100

Übergeordnetes Werk:	Enthalten in: Chemosphere - Kidlington, Oxford : Elsevier Science, 1972, 143(2016), Seite 123-127
Übergeordnetes Werk:	volume:143 ; year:2016 ; pages:123-127

Links:	Volltext Link aufrufen

DOI / URN:	10.1016/j.chemosphere.2015.04.017

Katalog-ID:	OLC1970466855

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520			\|a Today, nanoparticles are used in many products. One of the most common nanoparticles is titanium dioxide (TiO2). These particles generate reactive oxygen species (ROS) upon UV irradiation. Although nanoparticles are very useful in many products, there are concerns about their biological and ecological effects when released into the environment. Thus, it was assessed that the effect of TiO2 nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation by using Escherichia coli and Saccharomyces cerevisiae. ROS generation was evaluated by adding TiO2 nanoparticles and methylene blue to distilled water. We also assessed growth inhibition by adding TiO2 nanoparticles and microbes in minimal agar medium. Moreover, microbial inactivation was assessed by adding TiO2 nanoparticles and microbes to PBS. Upon UV irradiation, TiO2-NOAAs decomposed methylene blue and generated ROS. TiO2-NOAAs also decomposed methylene blue in minimal agar medium under UV irradiation; however, they did not inhibit microbial growth. Surprisingly, TiO2-NOAAs in the medium protect microbes from UV irradiation as colony formation was observed only near TiO2-NOAAs. In PBS, TiO2-NOAAs did not inactivate microbes but instead protected microbes from lethal UV irradiation. These results suggest that the amount of ROS generated by TiO2-NOAAs is not enough to inactivate microbes. In fact, our results suggest that TiO2-NOAAs may protect microbes from UV irradiations.
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700	1		\|a Yamada, Ikuho \|4 oth
700	1		\|a Nomura, Kazuki \|4 oth
700	1		\|a Horie, Masanori \|4 oth
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matchkey_str	article:00456535:2016----::hefcottnudoiei2aobetadhiageaeadglmrtsraeta10m
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allfields	10.1016/j.chemosphere.2015.04.017 doi PQ20160212 (DE-627)OLC1970466855 (DE-599)GBVOLC1970466855 (PRQ)c1264-8226062209228a3ed8291d0c9ea9745289d793e46504ba38044f9cd0303605ef0 (KEY)0012464820160000143000000123effectoftitaniumdioxidetio2nanoobjectsandtheiraggr DE-627 ger DE-627 rakwb eng 333.7 DNB AR 10100 AVZ rvk 38.32 bkl 35.00 bkl Iwahashi, Hitoshi verfasserin aut The effect of titanium dioxide (TiO2) nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Today, nanoparticles are used in many products. One of the most common nanoparticles is titanium dioxide (TiO2). These particles generate reactive oxygen species (ROS) upon UV irradiation. Although nanoparticles are very useful in many products, there are concerns about their biological and ecological effects when released into the environment. Thus, it was assessed that the effect of TiO2 nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation by using Escherichia coli and Saccharomyces cerevisiae. ROS generation was evaluated by adding TiO2 nanoparticles and methylene blue to distilled water. We also assessed growth inhibition by adding TiO2 nanoparticles and microbes in minimal agar medium. Moreover, microbial inactivation was assessed by adding TiO2 nanoparticles and microbes to PBS. Upon UV irradiation, TiO2-NOAAs decomposed methylene blue and generated ROS. TiO2-NOAAs also decomposed methylene blue in minimal agar medium under UV irradiation; however, they did not inhibit microbial growth. Surprisingly, TiO2-NOAAs in the medium protect microbes from UV irradiation as colony formation was observed only near TiO2-NOAAs. In PBS, TiO2-NOAAs did not inactivate microbes but instead protected microbes from lethal UV irradiation. These results suggest that the amount of ROS generated by TiO2-NOAAs is not enough to inactivate microbes. In fact, our results suggest that TiO2-NOAAs may protect microbes from UV irradiations. Nutzungsrecht: Copyright © 2015 Elsevier Ltd. All rights reserved. Yamada, Ikuho oth Nomura, Kazuki oth Horie, Masanori oth Enthalten in Chemosphere Kidlington, Oxford : Elsevier Science, 1972 143(2016), Seite 123-127 (DE-627)129288586 (DE-600)120089-6 (DE-576)014470187 0045-6535 nnns volume:143 year:2016 pages:123-127 http://dx.doi.org/10.1016/j.chemosphere.2015.04.017 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25956024 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-GGO GBV_ILN_21 GBV_ILN_70 GBV_ILN_4012 AR 10100 38.32 AVZ 35.00 AVZ AR 143 2016 123-127
spelling	10.1016/j.chemosphere.2015.04.017 doi PQ20160212 (DE-627)OLC1970466855 (DE-599)GBVOLC1970466855 (PRQ)c1264-8226062209228a3ed8291d0c9ea9745289d793e46504ba38044f9cd0303605ef0 (KEY)0012464820160000143000000123effectoftitaniumdioxidetio2nanoobjectsandtheiraggr DE-627 ger DE-627 rakwb eng 333.7 DNB AR 10100 AVZ rvk 38.32 bkl 35.00 bkl Iwahashi, Hitoshi verfasserin aut The effect of titanium dioxide (TiO2) nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Today, nanoparticles are used in many products. One of the most common nanoparticles is titanium dioxide (TiO2). These particles generate reactive oxygen species (ROS) upon UV irradiation. Although nanoparticles are very useful in many products, there are concerns about their biological and ecological effects when released into the environment. Thus, it was assessed that the effect of TiO2 nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation by using Escherichia coli and Saccharomyces cerevisiae. ROS generation was evaluated by adding TiO2 nanoparticles and methylene blue to distilled water. We also assessed growth inhibition by adding TiO2 nanoparticles and microbes in minimal agar medium. Moreover, microbial inactivation was assessed by adding TiO2 nanoparticles and microbes to PBS. Upon UV irradiation, TiO2-NOAAs decomposed methylene blue and generated ROS. TiO2-NOAAs also decomposed methylene blue in minimal agar medium under UV irradiation; however, they did not inhibit microbial growth. Surprisingly, TiO2-NOAAs in the medium protect microbes from UV irradiation as colony formation was observed only near TiO2-NOAAs. In PBS, TiO2-NOAAs did not inactivate microbes but instead protected microbes from lethal UV irradiation. These results suggest that the amount of ROS generated by TiO2-NOAAs is not enough to inactivate microbes. In fact, our results suggest that TiO2-NOAAs may protect microbes from UV irradiations. Nutzungsrecht: Copyright © 2015 Elsevier Ltd. All rights reserved. Yamada, Ikuho oth Nomura, Kazuki oth Horie, Masanori oth Enthalten in Chemosphere Kidlington, Oxford : Elsevier Science, 1972 143(2016), Seite 123-127 (DE-627)129288586 (DE-600)120089-6 (DE-576)014470187 0045-6535 nnns volume:143 year:2016 pages:123-127 http://dx.doi.org/10.1016/j.chemosphere.2015.04.017 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25956024 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-GGO GBV_ILN_21 GBV_ILN_70 GBV_ILN_4012 AR 10100 38.32 AVZ 35.00 AVZ AR 143 2016 123-127
allfields_unstemmed	10.1016/j.chemosphere.2015.04.017 doi PQ20160212 (DE-627)OLC1970466855 (DE-599)GBVOLC1970466855 (PRQ)c1264-8226062209228a3ed8291d0c9ea9745289d793e46504ba38044f9cd0303605ef0 (KEY)0012464820160000143000000123effectoftitaniumdioxidetio2nanoobjectsandtheiraggr DE-627 ger DE-627 rakwb eng 333.7 DNB AR 10100 AVZ rvk 38.32 bkl 35.00 bkl Iwahashi, Hitoshi verfasserin aut The effect of titanium dioxide (TiO2) nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Today, nanoparticles are used in many products. One of the most common nanoparticles is titanium dioxide (TiO2). These particles generate reactive oxygen species (ROS) upon UV irradiation. Although nanoparticles are very useful in many products, there are concerns about their biological and ecological effects when released into the environment. Thus, it was assessed that the effect of TiO2 nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation by using Escherichia coli and Saccharomyces cerevisiae. ROS generation was evaluated by adding TiO2 nanoparticles and methylene blue to distilled water. We also assessed growth inhibition by adding TiO2 nanoparticles and microbes in minimal agar medium. Moreover, microbial inactivation was assessed by adding TiO2 nanoparticles and microbes to PBS. Upon UV irradiation, TiO2-NOAAs decomposed methylene blue and generated ROS. TiO2-NOAAs also decomposed methylene blue in minimal agar medium under UV irradiation; however, they did not inhibit microbial growth. Surprisingly, TiO2-NOAAs in the medium protect microbes from UV irradiation as colony formation was observed only near TiO2-NOAAs. In PBS, TiO2-NOAAs did not inactivate microbes but instead protected microbes from lethal UV irradiation. These results suggest that the amount of ROS generated by TiO2-NOAAs is not enough to inactivate microbes. In fact, our results suggest that TiO2-NOAAs may protect microbes from UV irradiations. Nutzungsrecht: Copyright © 2015 Elsevier Ltd. All rights reserved. Yamada, Ikuho oth Nomura, Kazuki oth Horie, Masanori oth Enthalten in Chemosphere Kidlington, Oxford : Elsevier Science, 1972 143(2016), Seite 123-127 (DE-627)129288586 (DE-600)120089-6 (DE-576)014470187 0045-6535 nnns volume:143 year:2016 pages:123-127 http://dx.doi.org/10.1016/j.chemosphere.2015.04.017 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25956024 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-GGO GBV_ILN_21 GBV_ILN_70 GBV_ILN_4012 AR 10100 38.32 AVZ 35.00 AVZ AR 143 2016 123-127
allfieldsGer	10.1016/j.chemosphere.2015.04.017 doi PQ20160212 (DE-627)OLC1970466855 (DE-599)GBVOLC1970466855 (PRQ)c1264-8226062209228a3ed8291d0c9ea9745289d793e46504ba38044f9cd0303605ef0 (KEY)0012464820160000143000000123effectoftitaniumdioxidetio2nanoobjectsandtheiraggr DE-627 ger DE-627 rakwb eng 333.7 DNB AR 10100 AVZ rvk 38.32 bkl 35.00 bkl Iwahashi, Hitoshi verfasserin aut The effect of titanium dioxide (TiO2) nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Today, nanoparticles are used in many products. One of the most common nanoparticles is titanium dioxide (TiO2). These particles generate reactive oxygen species (ROS) upon UV irradiation. Although nanoparticles are very useful in many products, there are concerns about their biological and ecological effects when released into the environment. Thus, it was assessed that the effect of TiO2 nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation by using Escherichia coli and Saccharomyces cerevisiae. ROS generation was evaluated by adding TiO2 nanoparticles and methylene blue to distilled water. We also assessed growth inhibition by adding TiO2 nanoparticles and microbes in minimal agar medium. Moreover, microbial inactivation was assessed by adding TiO2 nanoparticles and microbes to PBS. Upon UV irradiation, TiO2-NOAAs decomposed methylene blue and generated ROS. TiO2-NOAAs also decomposed methylene blue in minimal agar medium under UV irradiation; however, they did not inhibit microbial growth. Surprisingly, TiO2-NOAAs in the medium protect microbes from UV irradiation as colony formation was observed only near TiO2-NOAAs. In PBS, TiO2-NOAAs did not inactivate microbes but instead protected microbes from lethal UV irradiation. These results suggest that the amount of ROS generated by TiO2-NOAAs is not enough to inactivate microbes. In fact, our results suggest that TiO2-NOAAs may protect microbes from UV irradiations. Nutzungsrecht: Copyright © 2015 Elsevier Ltd. All rights reserved. Yamada, Ikuho oth Nomura, Kazuki oth Horie, Masanori oth Enthalten in Chemosphere Kidlington, Oxford : Elsevier Science, 1972 143(2016), Seite 123-127 (DE-627)129288586 (DE-600)120089-6 (DE-576)014470187 0045-6535 nnns volume:143 year:2016 pages:123-127 http://dx.doi.org/10.1016/j.chemosphere.2015.04.017 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25956024 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-GGO GBV_ILN_21 GBV_ILN_70 GBV_ILN_4012 AR 10100 38.32 AVZ 35.00 AVZ AR 143 2016 123-127
allfieldsSound	10.1016/j.chemosphere.2015.04.017 doi PQ20160212 (DE-627)OLC1970466855 (DE-599)GBVOLC1970466855 (PRQ)c1264-8226062209228a3ed8291d0c9ea9745289d793e46504ba38044f9cd0303605ef0 (KEY)0012464820160000143000000123effectoftitaniumdioxidetio2nanoobjectsandtheiraggr DE-627 ger DE-627 rakwb eng 333.7 DNB AR 10100 AVZ rvk 38.32 bkl 35.00 bkl Iwahashi, Hitoshi verfasserin aut The effect of titanium dioxide (TiO2) nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Today, nanoparticles are used in many products. One of the most common nanoparticles is titanium dioxide (TiO2). These particles generate reactive oxygen species (ROS) upon UV irradiation. Although nanoparticles are very useful in many products, there are concerns about their biological and ecological effects when released into the environment. Thus, it was assessed that the effect of TiO2 nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation by using Escherichia coli and Saccharomyces cerevisiae. ROS generation was evaluated by adding TiO2 nanoparticles and methylene blue to distilled water. We also assessed growth inhibition by adding TiO2 nanoparticles and microbes in minimal agar medium. Moreover, microbial inactivation was assessed by adding TiO2 nanoparticles and microbes to PBS. Upon UV irradiation, TiO2-NOAAs decomposed methylene blue and generated ROS. TiO2-NOAAs also decomposed methylene blue in minimal agar medium under UV irradiation; however, they did not inhibit microbial growth. Surprisingly, TiO2-NOAAs in the medium protect microbes from UV irradiation as colony formation was observed only near TiO2-NOAAs. In PBS, TiO2-NOAAs did not inactivate microbes but instead protected microbes from lethal UV irradiation. These results suggest that the amount of ROS generated by TiO2-NOAAs is not enough to inactivate microbes. In fact, our results suggest that TiO2-NOAAs may protect microbes from UV irradiations. Nutzungsrecht: Copyright © 2015 Elsevier Ltd. All rights reserved. Yamada, Ikuho oth Nomura, Kazuki oth Horie, Masanori oth Enthalten in Chemosphere Kidlington, Oxford : Elsevier Science, 1972 143(2016), Seite 123-127 (DE-627)129288586 (DE-600)120089-6 (DE-576)014470187 0045-6535 nnns volume:143 year:2016 pages:123-127 http://dx.doi.org/10.1016/j.chemosphere.2015.04.017 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25956024 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-GGO GBV_ILN_21 GBV_ILN_70 GBV_ILN_4012 AR 10100 38.32 AVZ 35.00 AVZ AR 143 2016 123-127
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author	Iwahashi, Hitoshi
spellingShingle	Iwahashi, Hitoshi ddc 333.7 rvk AR 10100 bkl 38.32 bkl 35.00 The effect of titanium dioxide (TiO2) nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation
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title	The effect of titanium dioxide (TiO2) nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation
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title_full	The effect of titanium dioxide (TiO2) nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation
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title_sort	effect of titanium dioxide (tio2) nano-objects, and their aggregates and agglomerates greater than 100nm (noaa) on microbes under uv irradiation
title_auth	The effect of titanium dioxide (TiO2) nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation
abstract	Today, nanoparticles are used in many products. One of the most common nanoparticles is titanium dioxide (TiO2). These particles generate reactive oxygen species (ROS) upon UV irradiation. Although nanoparticles are very useful in many products, there are concerns about their biological and ecological effects when released into the environment. Thus, it was assessed that the effect of TiO2 nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation by using Escherichia coli and Saccharomyces cerevisiae. ROS generation was evaluated by adding TiO2 nanoparticles and methylene blue to distilled water. We also assessed growth inhibition by adding TiO2 nanoparticles and microbes in minimal agar medium. Moreover, microbial inactivation was assessed by adding TiO2 nanoparticles and microbes to PBS. Upon UV irradiation, TiO2-NOAAs decomposed methylene blue and generated ROS. TiO2-NOAAs also decomposed methylene blue in minimal agar medium under UV irradiation; however, they did not inhibit microbial growth. Surprisingly, TiO2-NOAAs in the medium protect microbes from UV irradiation as colony formation was observed only near TiO2-NOAAs. In PBS, TiO2-NOAAs did not inactivate microbes but instead protected microbes from lethal UV irradiation. These results suggest that the amount of ROS generated by TiO2-NOAAs is not enough to inactivate microbes. In fact, our results suggest that TiO2-NOAAs may protect microbes from UV irradiations.
abstractGer	Today, nanoparticles are used in many products. One of the most common nanoparticles is titanium dioxide (TiO2). These particles generate reactive oxygen species (ROS) upon UV irradiation. Although nanoparticles are very useful in many products, there are concerns about their biological and ecological effects when released into the environment. Thus, it was assessed that the effect of TiO2 nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation by using Escherichia coli and Saccharomyces cerevisiae. ROS generation was evaluated by adding TiO2 nanoparticles and methylene blue to distilled water. We also assessed growth inhibition by adding TiO2 nanoparticles and microbes in minimal agar medium. Moreover, microbial inactivation was assessed by adding TiO2 nanoparticles and microbes to PBS. Upon UV irradiation, TiO2-NOAAs decomposed methylene blue and generated ROS. TiO2-NOAAs also decomposed methylene blue in minimal agar medium under UV irradiation; however, they did not inhibit microbial growth. Surprisingly, TiO2-NOAAs in the medium protect microbes from UV irradiation as colony formation was observed only near TiO2-NOAAs. In PBS, TiO2-NOAAs did not inactivate microbes but instead protected microbes from lethal UV irradiation. These results suggest that the amount of ROS generated by TiO2-NOAAs is not enough to inactivate microbes. In fact, our results suggest that TiO2-NOAAs may protect microbes from UV irradiations.
abstract_unstemmed	Today, nanoparticles are used in many products. One of the most common nanoparticles is titanium dioxide (TiO2). These particles generate reactive oxygen species (ROS) upon UV irradiation. Although nanoparticles are very useful in many products, there are concerns about their biological and ecological effects when released into the environment. Thus, it was assessed that the effect of TiO2 nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation by using Escherichia coli and Saccharomyces cerevisiae. ROS generation was evaluated by adding TiO2 nanoparticles and methylene blue to distilled water. We also assessed growth inhibition by adding TiO2 nanoparticles and microbes in minimal agar medium. Moreover, microbial inactivation was assessed by adding TiO2 nanoparticles and microbes to PBS. Upon UV irradiation, TiO2-NOAAs decomposed methylene blue and generated ROS. TiO2-NOAAs also decomposed methylene blue in minimal agar medium under UV irradiation; however, they did not inhibit microbial growth. Surprisingly, TiO2-NOAAs in the medium protect microbes from UV irradiation as colony formation was observed only near TiO2-NOAAs. In PBS, TiO2-NOAAs did not inactivate microbes but instead protected microbes from lethal UV irradiation. These results suggest that the amount of ROS generated by TiO2-NOAAs is not enough to inactivate microbes. In fact, our results suggest that TiO2-NOAAs may protect microbes from UV irradiations.
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title_short	The effect of titanium dioxide (TiO2) nano-objects, and their aggregates and agglomerates greater than 100nm (NOAA) on microbes under UV irradiation
url	http://dx.doi.org/10.1016/j.chemosphere.2015.04.017 http://www.ncbi.nlm.nih.gov/pubmed/25956024
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