Methodologies for the analysis of antimicrobial effects of immobilized photocatalytic materials

Applied Microbiology and Biotechnology

Volumn 98, Issue 5, 2014, Pages 1925-1936

  Žvab, Urška ^a   Lavrenčič Štangar, Urška ^a   Bergant Marušič, Martina ^a  

^a UNIVERSITY OF NOVA GORICA   (Slovenia)

Author keywords

Antimicrobial activity; Detection methods; Photocatalytic coatings; Testing parameters

Indexed keywords

AIR CLEANERS; COATINGS; MICROORGANISMS; WATER TREATMENT;

ACTIVATION AND REGENERATIONS; ANALYTICAL METHODOLOGY; ANTI-MICROBIAL ACTIVITY; DETECTION METHODS; ENVIRONMENTAL CONDITIONS; PHOTOCATALYTIC COATING; PHOTOCATALYTIC MATERIALS; TESTING PARAMETERS;

MATERIALS TESTING;

ANTIMICROBIAL ACTIVITY; CATALYSIS; COATING; DISINFECTION; IMMOBILIZATION; PHOTOCHEMISTRY;

ANTIBACTERIAL ACTIVITY; ANTIVIRAL ACTIVITY; CATALYST; CERAMICS; DISINFECTION; MATERIAL COATING; MATERIALS TESTING; METHODOLOGY; NONHUMAN; PHOTOCATALYSIS; PHYSICAL CHEMISTRY; SHORT SURVEY;

DISINFECTANTS; DISINFECTION; ENVIRONMENTAL MICROBIOLOGY; MICROBIAL SENSITIVITY TESTS; PHOTOCHEMICAL PROCESSES;

EID: 84896726199     PISSN: 01757598     EISSN: 14320614     Source Type: Journal    
DOI: 10.1007/s00253-013-5464-y     Document Type: Short Survey

References (129)

1. 2 films. Water Res 43:47-54. doi:10.1016/j.watres.2008.10.015
2. Apel K, Hirt H (2004) Reactive oxygen species: metabolism, oxidative stress, and signal transduction. Annu Rev Plant Biol 55:373-399 (Pubitemid 38940937)
3. 2 photoelectrocatalysis. Electrochim Acta 54:3381-3386. doi:10.1016/j.electacta.2008.12.033
4. 2. Appl Catal B 101:212-219. doi:10.1016/j.apcatb.2010.09.024
5. Belhacova L, Krysa J, Geryk J, Jirkovsky J (1999) Inactivation of microorganisms in a flow-through photoreactor with an immobilized layer TiO2. J Chem Technol Biotechnol 74:149-154. doi:10.1002/(SICI)1097-4660(199902)74: 2〈149::AID-JCTB2〉3.0.CO;2-Q (Pubitemid 29084398)
6. Berney M, Hammes F, Bosshard F, Weilenmann H-U, Egli T (2007) Assessment and interpretation of bacterial viability by using the LIVE/DEAD BacLight kit in combination with flow cytometry. Appl Environ Microbiol 73:3283-3290. doi:10.1128/AEM.02750-06 (Pubitemid 46834980)
7. Blake DM, Maness P, Huang Z, Wolfrum EJ, Huang J (1999) Application of the photocatalytic chemistry of titanium dioxide to disinfection and the killing of cancer cells. Sep Purif Method 28:1-50. doi:10.1080/03602549909351643
8. Blanco J, Fernández P, Malato S (2007) Solar photocatalytic detoxification and disinfection of water: recent overview. J Solar Energy Eng 129:4-15. doi:10.1115/1.2390948
9. Burton JG, Jauniaux E (2011) Oxidative stress. Best Pract Res Clin Obstet Gynaecol 25:287-299. doi:10.1016/j.bpobgyn.2010.10.016
10. Cai Y, Stromme M, Welch K (2013) Bacteria viability assessment after photocatalytic treatment. 3 Biotech. doi:10.1007/s13205-013-0137-1
11. Carp O, Huisman CL, Reller A (2004) Photoinduced reactivity of titanium dioxide. Prog Solid State Chem 32:33-177. doi:10.1016/j.progsolidstchem.2004.08. 001
12. 2 process with controlled periodic illumination. Chemosphere 69:184-190. doi:10.1016/j.chemosphere.2007.04.051
13. 2 coated film on moist wood. Build Environ 44:1088-1093. doi:10.1016/j.buildenv. 2008.07.018
14. Chen F, Yang X, Mak HKC, Chan DWT (2010) Photocatalytic oxidation for antimicrobial control in built environment: a brief literature overview. Build Environ 45:1747-1754. doi:10.1016/j.buildenv.2010.01.024
15. 4 particles on fish pathogen in seawater. Thin Solid Films 519:5002-5006. doi:10.1016/j.tsf.2011.01.069
16. 2 photoelectrocatalytic reactor. Water Res 45:2104-2110. doi:10.1016/j.watres.2010.12.017
17. Chollet GF, Josset S, Keller N, Keller V, Lett MC (2009) Monitoring the bactericidal effect of UV-A photocatalysis: a first approach through 1D and 2D protein electrophoresis. Catal Today 147:169-172. doi:10.1026/j.cattod.20090.001
18. 2: parametric and kinetic study. Ind Eng Chem Res 51:4523-4532. doi:10.1021/ie2025213
19. Cushnie TPT, Robertson PKJ, Officer S, Pollard PM, McCullagh C, Robertson JMC (2009) Variables to be considered when assessing the photocatalytic destruction of bacterial pathogens. Chemosphere 74:1374-1378. doi:10.1016/j.chemosphere.2008.11.012
20. 2 thin films at low temperatures - a preliminary study. J Photochem Photobiol A Chem 216:290-294. doi:10.1016/j.jphotochem.2010.06.027
21. Davey HM (2011) Life, death, and in-between: meanings and methods in microbiology, minireview. Appl Environ Microbiol 77:5571-5576. doi:10.1128/AEM.00744-11
22. 2/CuO dual layers on Escherichia coli and bacteriophage T4. ApplMicrobiol Biotechnol 79:127-133. doi:10.1007/s00253-008- 1411-8
23. Downes A, Blunt TP (1877) Researches on the effect of light upon bacteria and other organisms. Proc R Soc Lond 26:488-500. doi:10.1098/rspl.1877.0068
24. Dunlop PSM, Byrne JA, Manga N, Eggins BR (2002) The photocatalytic removal of bacterial pollutants from drinking water. J Photochem Photobiol A Chem 148:355-363. doi:10.1016/S1010-6030(02)00063-1
25. 2 electrodes. J Photochem Photobiol A Chem 196:113-119. doi:10.1016/j.jphotochem.2007.11.024
26. Dunlop PMS, Sheeran CP, Byrne JA, McMahon MAS, Boyle MA, McGuigan KG (2010) Inactivation of clinically relevant pathogens by photocatalytic coatings. J Photochem Photobiol A Chem 216:303-310. doi:10.1016/j.jphotochem.2010.07.004
27. 2 powders. Photochem Photobiol 88:728-735. doi:10.1111/j.1751-1097- 1097.2012.01104.x
28. 2 photocatalysts for water decontamination. Appl Catal B 130-131:8-13. doi:10.1016/j.apcatb.2012.10.013
29. Foster HA, Ditta IB, Varghese S, Steele A (2011) Photocatalytic disinfection using titanium dioxide: spectrum and mechanism of antimicrobial activity. Appl Microbiol Biotechnol 90:1847-1868. doi:10.1002/cvde.201106978
30. 2 coatings prepared by CVD. Chem Vap Depos 18:140-146. doi:10.1002/cvde.201106978
31. Fox MA, Dulay MT (1993) Heterogeneous photocatalysis. Chem Rev 93:3a41-3a357. doi:10.1021/cr00017a016
32. Fresno F, Suárez S, Portela S, Coronado JM (2014) Photocatalytic materials: recent achievements and near future trends. J Mater Chem A. doi:10.1039/C3TA13793G
33. 2 photocatalysis and related surface phenomena. Surf Sci Rep 63:515-582. doi:10.1016/j.surfrep.2008. 10.001
34. Gannon CJ (2000) The global infectious disease threat and its implications for the United States. NIE 99-17D. http://www.fas.org/irp/threat/ nie99-17d.htm. Accessed 7 Dec 2013
35. 2 photocatalysis involves adsorption onto catalyst and the loss of membrane integrity. FEMS Microbiol Lett 258:18-24. doi:10.1111/j.1574-6968.2006.00190.x
36. Gomes AI, Vilar VJP, Boaventura RAR (2009) Synthetic and natural waters disinfection using natural solar radiation in a pilot plant with CPCs. Catal Today 144:55-61
37. Goswami DY, Trivedi DM, Block SS (1997) Photocatalytic disinfection of indoor air. J Sol Energ Eng 119:92-96. doi:10.1115/1.2871871 (Pubitemid 127680220)
38. 2 nanocoatings against microalgal growth on clay brick façades under weak UV exposure conditions. Build Environ 64:38-45. doi:10.1016/j.buildenv.2013.03.003
39. Grieken R, Marugan J, Pablos C, Furones L, Lopez A (2010) Comparison between the photocatalytic inactivation of Gram-positive E. faecalis and Gram-negative E. coli faecal contamination indicator microorganisms. Appl Catal B 100:212-220
40. Guillard C, Bui T-H, Felix C, Moules V, Lina B, Lejeune P (2008) Microbiological disinfection of water and air by photocatalysis. C R Chim 11:107-113. doi:10.1016/j.crci.2007.06.007
41. Hara-Kudo Y, Segawa Y, Kimura K (2006) Sanitation of seawater effluent from seaweed processing plants using a photo-catalytic TiO2 oxidation. Chemosphere 62:149-154 (Pubitemid 41737436)
42. Hargesheimer EE, Watson SB (1996) Drinking water treatment options for taste and odour control. Water Res 30:1423-1430 (Pubitemid 26162928)
43. 2 photocatalysis: a historical overview and future prospects. Jpn J Appl Phys 44:8269-8285. doi:10.1143/JJAP.44.8269
44. 2 film: the combination of Ag deposition with application of external electric field. Thin Solid Films 422:235-238. doi:10.1016/S0040- 6090(02)00892-1
45. He C, Li X, Xiong Y, Zhu X, Liu S (2005) The enhanced PC and PEC oxidation of formic acid in aqueous solution using a Cu-TiO2/ITO film. Chemosphere 58:381-389. doi:10.1016/j.chemosphere.2004.09.041 (Pubitemid 40023205)
46. Hermann JM (2005) Heterogeneous photocatalysis: state of the art and present applications. Top Catal 34:49-65. doi:10.1007/s11244-005-3788-2
47. Herrera Melian JA, Dona Rodriguez JM, Viera Suarez A, Tello Rendon E, Valdes do Campo C, Arana J, Perez Pena P (2000) The photocatalytic disinfection of urban waste waters. Chemosphere 41:323-327. doi:10.1016/S0045-6535(99)00502-0 (Pubitemid 30230203)
48. Hijnen WA, Beerendonk EF, Medema GJ (2006) Inactivation credit of UVradiation for viruses, bacteria and protozoan (oo)cysts in water: a review. Water Res 40:3-22 (Pubitemid 43021298)
49. Hong J, Otaki M (2006) Association of photosynthesis and photocatalytic inhibition of algal growth by TiO2. J Biosci Bioeng 101:185-189. doi:10.1263/jbb.101.185 (Pubitemid 44354387)
50. Hong J, Ma H, Otaki M (2005) Controlling algal growth in photo-dependent decolorant sludge by photocatalysis. J Biosci Bioeng 99:592-597. doi:10.1263/jbb.99.592 (Pubitemid 41557169)
51. Horowitz NH (1979) Biological water requirements. In: Shilo M (ed) Strategies of microbial life in extreme environments. Verlag Chemie, Weinhein, pp 15-27
52. IARC (2010) Volume 93 - Carbon black, titanium dioxide and talc. In: IARC monographs. http://monographs.iarc.fr/ENG/Monographs/vol93/mono93-7.pdf. Accessed 7 Dec 2013
53. Ireland JC, Klostermann P, Rice EW, Clark RM (1993) Inactivation of Escherichia coli by titanium dioxide photocatalytic oxidation. Appl Environ Microbiol 59:1668-1670 (Pubitemid 23141187)
54. Jacoby WA, Maness PC, Wolfrum EJ, Blake DM, Fennell JA (1998) Mineralization of bacterial cell mass on a photocatalytic surface in air. Environ Sci Technol 32:2650-2653. doi:10.1021/es980036f (Pubitemid 28420298)
55. 2 photocatalyst. J Solid State Chem 181:593-602. doi:10.1016/j.jssc.2008.01.004
56. Josset S, Taranto J, Keller N, Keller V, Lett M, Ledoux MJ, Bonnet V, Rougeau S (2007) UV-A photocatalytic treatment of high flow rate air contaminated with Legionella pneumophila. Catal Today 129:215-222. doi:10.1016/j.cattod.2007.08.010 (Pubitemid 350001244)
57. 2 nanocomposite for photocatalytic disinfection of bacteria and detoxification of cyanide under visible light. Mater Res Bull 46:1586-1592. doi:10.1016/j.materresbull.2011.06. 019
58. Kaur J, Karthikeyan R, Smith R (2013) Assessment of Escherichia coli reactivation after photocatalytic water disinfection using flow cytometry: comparison with a culture-based method. Water Sci Technol 13:816-825. doi:10.2166/ws.2013.071
59. Keller V, Keller N, Ledoux MJ, Lett M (2005) Biological agent inactivation in a flowing air stream by photocatalysis. Chem Commun (Camb) 23:2918-2920 (Pubitemid 40917036)
60. Khaengraeng R, Reed RH (2005) Oxygen and photoinactivation of Escherichia coli in UVA and sunlight. J Appl Microbiol 99:39-50. doi:10.1111/j.1365-2672. 2005.02606.x (Pubitemid 40896988)
61. Khan SJ, Reed RH, Rasul MG (2012) Thin-film fixed-bed reactor for solar photocatalytic inactivation of Aeromonas hydrophila: influence of water quality. BMC Microbiol 12:258. doi:10.1186/1471-2180-12-285
62. 2 photocatalytic products. Environ Eng Res 13:136-140
63. Kim S, Ghafoor K, Lee J, FengM, Hong J, Lee D-U, Park J (2013) Bacterial inactivation in water, DNA strand breaking, and membrane damage induced by ultraviolet-assisted titanium dioxide photocatalysis. Water Res 47:4403-4411. doi:10.1016/j.watres.2013.05.009
64. Ko G, First MW, Burge HA (2000) Influence of relative humidity on particle size and UV sensitivity of Serratia marcescens and Mycobacterium bovis BCG aerosols. Tuber Lung Dis 80:217-218
65. Koizumi Y, Taya M (2002) Photocatalytic inactivation of phage MS2 in titanium dioxide suspensions containing various ionic species. Biotechnol Lett 24:459-462. doi:10.1023/A:1014505212151 (Pubitemid 34263650)
66. Krysa J, Musilova E, Zita J (2011) Critical assessment of suitable methods used for determination of antibacterial properties at photocatalytic surfaces. J Hazard Mater 195:100-106. doi:10.1016/j.jhazmat.2011.08.009
67. 2 nanoparticles induce oxidative stress and DNA damage leading to reduced viability of Escherichia coli. Free Radic BiolMed 51:1872-1881. doi:10.1016/j.freeradbiomed.2011.08.025
68. 2 nanometer photocatalyst film by a hydrothermal method and its sterilization performance for Giardia lamblia. Water Res 38:713-719. doi:10.1016/j.watres.2003.10.011
69. 2 photoelectrocatalytic oxidation system for water and wastewater treatment. Environ Sci Technol 39:4614-4620. doi:10.1021/ es048276k
70. 2 thin films/glass fiber photocatalytic reactors in the removal of bioaerosols. Surf Coat Technol 205:S341-S344. doi:10.1016/j.surfcoat.2010.08.009
71. 2 activated with ultraviolet light. Process Biochem 39:475-481. doi:10.1016/S0032-9592(03)00084-0
72. Lonnen J, Kilvington S, Kehoe SC, Al-Touati F, McGuigan KG (2005) Solar and photocatalytic disinfection of protozoan, fungal and bacterial microbes in drinking water. Water Res 39:877-883. doi:10.1016/j.watres.2004.11.023 (Pubitemid 40311663)
73. Madigan TM, Martinko MJ, Parker J (2003) Chapter 21: Human-microbe interactions. In: Brock biology of microorganisms, 10th edn. Pearson Education Inc, Upper Saddle River, pp 727-754
74. Malato S, Fernandez-Ibanez P, Maldonado MI, Blanco J, Gernjak W (2009) Decontamination and disinfection of water by solar photocatalysis: recent overview and trends. Catal Today 147:1-59.doi:10.1016/j.cattod.2009.06.018
75. Marugan J, Grieken R, Pablos C, Sordo C (2010) Analogies and differences between photocatalytic oxidation of chemicals and photocatalytic inactivation of microorganisms. Water Res 44:789-796. doi:10.1016/j.watres.2009.10.022
76. Matsunaga T, Tomoda R, Nakajima T, Wake H (1985) Photoelectrochemical sterilization ofmicrobial cells by semiconductor powders. FEMS Microbiol Lett 29:211-214 (Pubitemid 16221826)
77. Matsunaga T, Tomoda R, Nakajima T, Nakamura N, Komine T (1988) Continuous-sterilization system that uses photosemiconductor powders. Appl Environ Microbiol 54:1330-1333
78. 2 photocatalysis for disinfection of water contaminated with pathogenic micro-organisms: a review. Res Chem Intermed 33:359-375. doi:10.1163/156856707779238775
79. McLoughlin OA, Kehoe SC, McGuigan KG, Duffy EF, Touati FA, Gernjak W, Alberola IO, Malato S, Gill LW (2004) Solar disinfection of contaminated water: a comparison of three small-scale reactors. Sol Energy 77:657-664. doi:10.1016/j.solener.2004.07.004 (Pubitemid 39393855)
80. 2. Review of in vivo data. Environ Pollut 159:677-684. doi:10.1016/j.envpol.2010.11.027
81. 2 nanoparticles are phototoxic to marine phytoplankton. PLoS ONE 7(1):e30321. doi:10.1371/journal.pone.0030321
82. Mills A, Lee S (2002) A web-based overview of semiconductor photochemistry-based current commercial applications. J Photochem Photobiol A Chem 152:233-247. doi:10.1016/S1010-6030(02)00243-5
83. Mills A, Lepre A, Elliott N, Bhopal S, Parkin IP, O'Neill SA (2003a) Characterisation of the photocatalyst Pilkington Activ™: a reference film photocatalyst? J Photochem Photobiol A Chem 160:213-224. doi:10.1016/S1010- 6030(03)00205-3
84. Mills A, Hill G, Bhopan S, Parkin IP, O'Neill SA (2003b) Thick titanium dioxide films for semiconductor photocatalysis. J Photochem Photobiol A Chem 160:185-194. doi:10.1016/S1010-6030(03)00206-5
85. Mills A, Hill C, Robertson PKJ (2012) Overview of the current ISO tests for photocatalyticmaterials. J Photochem Photobiol A Chem237:7-23. doi:10.1016/j.jphotochem.2012.02.024
86. Mizunoe Y, Wai SN, Takade A, Yoshida S (1999) Restoration of culturability of starvation-stressed and low-temperature stressed Escherichia coli O157 cells by using H2O2-degrading compounds. Arch Microbiol 172:63-67 (Pubitemid 29318639)
87. 2 catalysts. J Photochem Photobiol A Chem 253:38-44. doi:10.1016/j.jphotochem.2012.12.016
88. Muranyi P, Schraml C, Wunderlich J (2010) Antimicrobial efficiency of titanium dioxide-coated surfaces. J Appl Microbiol 108:1966-1973. doi:10.1111/j.1365-2672.2009.04594.x
89. 2 photocatalysis studied by ATR-FTIR spectroscopy and AFM microscopy. J Photochem Photobiol A Chem 169:131-137. doi:10.1016/j.jphotochem.2004.06.011
90. 2 photocatalysis: design and applications. J Photochem Photobiol C 13:169-189. doi:10.1016/j.jphotochemrev. 2012.06.001
91. Nowakowska J,Oliver JD (2013) Resistance to environmental stresses by Vibrio vulnificus in the viable but nonculturable state. FEMS Microbiol Ecol 84:213-222. doi:10.1111/1574-6941.12052
92. 2-coatedmaterials. J Appl Electrochem40:1737-1742. doi:10.1007/s10800-010-0133-7
93. Oliver DJ (2010) Recent findings on the viable but nonculturable state in pathogenic bacteria. FEMS Microbiol Rev 34:415-425. doi:10.1111/j.1574-6976. 2009.00200
94. Pablos C, Grieken R, Marugan J, Moreno B (2011) Photocatalytic inactivation of bacteria in a fixed-bed reactor: mechanistic insights by epifluorescence microscopy. Catal Today 161:133-139
95. 2 photocatalysis for air treatment: patents' overview. Appl Catal B 99:448-460. doi:10.1016/j.apcatb. 2010.05.011
96. Pelaez M, Nolan NT, Pillai SC, Seery MK, Falaras P, Kontos AG, Dunlop PSM, Hamilton JWJ, Byrne JA, O'Shea K, Entezari MH, Dionysiou DD (2012) A review on the visible light active titanium dioxide photocatalysts for environmental applications. Appl Catal B 125:331-349. doi:10.1016/j.apcatb.2012.05.036
97. Polo A, Diamant MV, Bjarnsholt T, Hoiby N, Villa F, Pedeferri MP, Cappitelli F (2011) Effects of photoactivated titanium dioxide nanopowders and coating on planktonic and biofilm growth of Pseudomonas aeruginosa. Photochem Photobiol 87:1387-1394. doi:10.1111/j.1751-1097.2011.00972.x
98. 2 film with bifunctionalized zones for photocatalytic degradation of 4-chlorophenol. J Hazard Mater 192:599-604. doi:10.1016/j.jhazmat.2011.05.059
99. Quek PH, Hu J (2008) Indicators for photoreactivation and dark repair studies following ultraviolet disinfection. J Ind Microbiol Biotechnol 35:533-541. doi:10.1007/s10295-008-0314-0
100. Rincon AG, Pulgarin C (2003) Photocatalytical inactivation of E. coli: effect of (continuous-intermittent) light intensity and of (suspended-fixed) TiO2 concentration. Appl Catal B 44:263-284. doi:10.1016/S0926-3373(03)00076-6 (Pubitemid 37007960)
101. 2: is UV solar dose an appropriate parameter for standardization of water solar disinfection? Sol Energy 77:635-648. doi:10.1016/j.solener.2004.08.002
102. 2: implications in solar water disinfection. Appl Catal B 51:283-302. doi:10.1016/j.apcatb.2004.03.007
103. 2-assisted disinfection using solar light. J Braz Chem Soc 18:126-134. doi:10.1590/S0103-50532007000100014
104. Sakthivel S, Kisch H (2003) Daylight photocatalysis by carbon-modified titanium dioxide. Angew Chem Int 42:4908-4911. doi:10.1002/anie.200351577 (Pubitemid 37345387)
105. Sanchez B, Sanchez M, Munoz M, Cobas G, Portela R, Suarez S, Gonzalez AE, Rodriguez N, Amils R (2012) Photocatalytic elimination of indoor air biological and chemical pollution in realistic conditions. Chemosphere 87:625-630. doi:10.1016/j.chemosphere.2012.01.050
106. Sawada D, Ohmasa M, Fukuda M, Masuno K, Koide H, Tsunoda S, Nakamura K (2005) Disinfection of some pathogens of mushroom cultivation by photocatalytic treatment. Mycoscience 46:54-60. doi:10.1007/S10267-004-0211-Y
107. 2 - explanation by DLVO and XDLVO theory. Water Res 47:1503-1511. doi:10.1016/j.watres.2012.11. 030
108. 2-modified UV-C disinfection. Appl Catal B 89:536-542. doi:10.1016/j.apcatb.2009.01.020
109. 2 for photocatalytic degradation of methylene blue under visible light. Int J Green Nanotechnol Biomed 1:M94-M104. doi:10.1080/19430841003684823
110. Shi H, Magaye R, Castranova V, Zhao J (2013) Titanium dioxide nanoparticles: a review of current toxicological data. Part Fibre Toxicol 10:1-33. doi:10.1186/1743-8977-10-15
111. Shlaes DM, Sahm D, Opiela C, Spellberg B (2013) Commentary: the FDA reboot of antibiotic development. Antimicrob Agents Chemother 57:4605-4607. doi:10.1128/AAC.01277-13
112. Sichel C, Cara M, Tello J, Blanco J, Fernandez P (2007) Solar photocatalytic disinfection of agricultural pathogenic fungi: Fusarium species. Appl Catal B 74:152-160. doi:10.1016/j.apcatb.2007.02.005
113. Smit MAL, Spaan S, Heederik D (2005) Endotoxin exposure and symptoms in wastewater treatment workers. Am J Ind Med 48:30-39. doi:10.1002/ajim.20176 (Pubitemid 40993240)
114. Straka PR, Stokes LJ (1956) Rapid destruction of bacteria in commonly used diluents and its elimination. Appl Microbiol 5:21-25
115. 2 thin film photocatalysts. Environ Sci Technol 32:726-728
116. Tiller JC (2008) Coatings for prevention or deactivation of biological decontamination. In: Kohli R, Mittal KL (eds) Developments in surface contamination and cleaning. William Andrew Inc, New York, pp 1013-1065
117. Trevors JT (2003) Fluorescent probes for bacterial cytoplasmic membrane research. J Biochem Biophys Methods 57:87-103. doi:10.1016/S0165-022X(03)00076-9
118. Villarino A, Bouvet O, Regnault B, Martin-Delautre S, Grimont PA (2000) Exploring the frontier between life and death in Escherichia coli: evaluation of different viability markers in live and heat- or UV-killed cells. Res Microbiol 151:755-768
119. Vohra A, Goswami DY, Deshpande DA, Block SS (2006) Enhanced photocatalytic disinfection of indoor air. Appl Catal B 64:57-65. doi:10.1016/j.apcatb.2005.10.025
120. 2. J Phys Condens Matter 18:421-434. doi:10.1088/0953-8984/18/2/006
121. WHO (2011) Guidelines for drinking-water quality, 4th edn. http://whqlibdoc.who.int/publications/2011/9789241548151-eng.pdf. Accessed 19 July 2013
122. Wong M, ChuW, Sun D, Huang H, Chen J, Tsai P, Lin N, Yu M, Hsu S, Wang S, Chang H (2006) Visible-light-induced bactericidal activity of a nitrogen-doped titanium photocatalyst against human pathogens. Appl Environ Microbiol 72:6111-6116. doi:10.1128/AEM.02580-05 (Pubitemid 44414643)
123. Wu D, You H, Jin D, Li X (2011) Enhanced inactivation of Escherichia coli with Ag-coated TiO 2 thin film under UV-C irradiation. J Photochem Photobiol A Chem 217:177-183. doi:10.1016/j.jphotochem.2010.10.006
124. 2 system. Water Res 47:4547-4555. doi:10.1016/j.watres.2013.04.056
125. 2, ZnO and their bulk counterparts on zebrafish: acute toxicity, oxidative stress and oxidative damage. Sci Total Environ 409:1444-1452. doi:10.1016/j.scitotenv.2011.01.01
126. 2 gas. Thin Solid Films 516:1736-1742. doi:10.1016/j.tsf.2007.05.034
127. 2 with enhanced photocatalytic and bactericidal activities. Langmuir 19:10372-10380. doi:10.1021/la035330m
128. 2 membrane adsorption reactor (MAR) for virus removal in drinking water. Chem Eng J 230:180-187. doi:10.1016/j.cej.2013.06.069
129. Zvab U, Bergant Marusic M, Lavrencic Stangar U (2012) Microplate-based assays for the evaluation of antibacterial effects of photocatalytic coatings. Appl Microbiol Biotechnol 96:1341-1351. doi:10.1007/s00253-012-4458-5