跳至主要内容

Silver Nanoparticles Supported on TiO2 and Their Antibacterial Properties: Effect of Surface Confinement and Nonexistence of Plasmon Resonance

Read full paper at:
http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50684#.VEiSZVfHRK0

Ag/TiO2 nanocomposites are usually regarded as an effective synergy for high antimicrobial performance under ultraviolet-visible light conditions. This study confirmed that the surface plasmon resonance of Ag NPs plays an important role in relation to the NPs size and consequently with the antibacterial effect of the nanocomposite. We observed that under visible light the reactivity of TiO2 cannot be amplified when it is supporting Ag NPs that have an inactive photocatalytically surface. The results confirmed that the antimicrobial effectiveness of nanocomposite based on Ag NPs supported-TiO2 is closely associated to the contact surface area and to the electronic performance of the noble metal.
Cite this paper
Quiñones-Jurado, Z. , Waldo-Mendoza, M. , Aguilera-Bandin, H. , Villabona-Leal, E. , Cervantes-González, E. and Pérez, E. (2014) Silver Nanoparticles Supported on TiO2 and Their Antibacterial Properties: Effect of Surface Confinement and Nonexistence of Plasmon Resonance. Materials Sciences and Applications, 5, 895-903. doi: 10.4236/msa.2014.512091. 
 

[1] Marambio, C. and Hoek, E. (2010) A Review of the Antibacterial Effects of Silver Nanomaterials and Potential Implications for Human Health and the Environment. Journal of Nanoparticle Research, 12, 1531-1551.
http://dx.doi.org/10.1007/s11051-010-9900-y
[2] Baker, C, Pradhan, A., Pakstis, L., Pochan, D. and Shah, I. (2005) Synthesis and Antibacterial Properties of Silver Nanoparticles. Journal of Nanoparticle Research, 5, 244-249.
[3] Rai, M., Yadav, A. and Gade, A. (2009) Silver Nanoparticles as a New Generation of Antibacterials. Biotechnology Advances, 27, 76-83.
http://dx.doi.org/10.1016/j.biotechadv.2008.09.002
[4] Yoon, K., Byeon, J., Park, J., Hi, J., Bae, G and Hwang, J. (2008) Antibacterial Characteristics of Silver Aerosol Nanoparticles against Bacillus subtilis Bioaerosols. Environmental Engineering Science, 25, 289-294.
http://dx.doi.org/10.1089/ees.2007.0003
[5] Lok, C., Ho, C., Chen, R., He, Q., Wing, Y., Sun, H., Tam, P., Chiu, J. and Che, C. (2006) Proteomic Analysis of the Mode of Antibacterial Action of Silver Nanoparticles. Journal of Proteome Research, 5, 916-924.
http://dx.doi.org/10.1021/pr0504079
[6] Pal, S., Tak, Y. and Song, J. (2007) Does the Antibacterial Activity of Silver Nanoparticles Depend on the Shape of the Nanoparticle? A Study of the Gramnegative Bacterium Escherichia coli. Applied and Environmental Microbiology, 73, 1712-1720.
http://dx.doi.org/10.1128/AEM.02218-06
[7] Ayala, N., Lara, H., Ixtepan, L. and Rodríguez, C. (2009) Silver Nanoparticles Toxicity and Bactericidal Effect against Methicillin-Resistant. Staphylococcus aureus: Nanoscale Does Matter. Nanobiotechnology, 5, 2-9.
http://dx.doi.org/10.1007/s12030-009-9029-1
[8] Dror, A., Mamane, H., Belenkova, T., Markovich, G. and Adin, A. (2009) Silver Nanoparticle—E. coli Colloidal Interaction in Water and Effect on E. coli Survival. Journal of Colloid and Interface Science, 339, 521-526.
http://dx.doi.org/10.1016/j.jcis.2009.07.052
[9] Reidy, B., Haase, A., Luch, A., Dawson, K. and Lynch, I. (2013) Mechanisms of Silver Nanoparticle Release, Transformation and Toxicity: A Critical Review of Current Knowledge and Recommendations for Future Studies and Applications. Materials, 6, 2295-2350.
http://dx.doi.org/10.3390/ma6062295
[10] Tao, A., Habas, S. and Yang, P. (2008) Shape Control of Colloidal Metal Nanocrystals. Small, 4, 310-325.
http://dx.doi.org/10.1002/smll.200701295
[11] Xiu, Z., Zhang, Q., Puppala, H., Colvin, V. and Alvarez, P. (2012) Negligible Particle-Specific Antibacterial Activity of Silver Nanoparticles. Nano Letters, 12, 4271-4275.
http://dx.doi.org/10.1021/nl301934w
[12] Sunada, K., Watanabe, T. and Hashimoto, K. (2003) Bactericidal Activity of Copper-Deposited TiO2 Thin Film under Weak UV Light Illumination. Environmental Science & Technology, 37, 4785-4789.
http://dx.doi.org/10.1021/es034106g
[13] Xiaoyang, P. and Yi-Jun, X. (2013) Defect-Mediated Growth of Noble-Metal (Ag, Pt, and Pd) Nanoparticles on TiO2 with Oxygen Vacancies for Photocatalytic Redox Reactions under Visible Light. The Journal of Physical Chemistry C, 117, 17996-18005.
http://dx.doi.org/10.1021/jp4064802
[14] Yao, K., Wang, D., Ho, W., Yan, J. and Tzeng, K. (2007) Photocatalytic Bactericidal Effect of TiO2 Thin Film on Plant Pathogens. Surface and Coatings Technology, 201, 6886-6888.
http://dx.doi.org/10.1016/j.surfcoat.2006.09.068
[15] Cai, Y.L., Stromme, M. and Welch, K. (2014) Disinfection Kinetics and Contribution of Reactive Oxygen Species When Eliminating Bacteria with TiO2 Induced Photocatalysis. Journal of Biomaterials and Nanobiotechnology, 5, 200-209.
http://dx.doi.org/10.4236/jbnb.2014.53024
[16] Loganathan, K., Bommusamy, P., Muthaiahpillai, P. and Velayutham, M. (2011) The Syntheses, Characterizations, and Photocatalytic Activities of Silver, Platinum, and Gold Doped TiO2 Nanoparticles. Environmental Engineering Research, 16, 81-90.
http://dx.doi.org/10.4491/eer.2011.16.2.81
[17] Huanjun, Zh. and Guohua, Ch. (2009) Potent Antibacterial Activities of Ag/TiO2 Nanocomposite Powders Synthesized by a One-Pot Sol-Gel Method. Environmental Science & Technology, 43, 2905-2910.
http://dx.doi.org/10.1021/es803450f
[18] Keleher, J., Bashant, J., Heldt, N., Johnson, L. and Li, Y. (2002) Photo-Catalytic Preparation of Silver-Coated TiO2 Particles for Antibacterial Applications. Journal of Microbiology and Biotechnology, 18, 133-139.
http://dx.doi.org/10.1023/A:1014455310342
[19] Ashkarran, A., Aghigh, S., Kavianipour, M. and Farahani, N. (2011) Visible Light Photo-and Bioactivity of Ag/TiO2 Nanocomposite with Various Silver Contents. Current Applied Physics, 11, 1048-1055.
http://dx.doi.org/10.1016/j.cap.2011.01.042
[20] Zou, X., Silva, R., Huang, X., Jafar, F., Al-Sharab, J. and Asefa, T. (2013) A Self-Cleaning Porous TiO2-Ag Core-Shell Nanocomposite Material for Surface-Enhanced Raman Scattering. Chemical Communications, 49, 382-384.
http://dx.doi.org/10.1039/c2cc35917k
[21] Pan, X., Medina, I., Mernaugh, R. and Liu, J. (2010) Characterization and Bactericidal Performance of Silver Modified Titaniaphotocatalyst. Colloids and Surfaces B: Biointerfaces, 77, 82-89.
http://dx.doi.org/10.1016/j.colsurfb.2010.01.010
[22] Lin, Y.-C., Bai, H., Lin, C.-H. and Wu, J.-F. (2013) Applying Surface Charge Attraction to Synthesizing TiO2/Ag Composition for VOCs Photodegradation. Aerosol and Air Quality Research, 13, 1512-1520.
[23] Choi, H., Jung Y. and Kim, S. (2004) Characterization of Raman Spectra of Size-Selected TiO2 Nanoparticles by Two-Dimensional Correlation Spectroscopy. Bulletin of the Korean Chemical Society, 25, 426-428.
http://dx.doi.org/10.5012/bkcs.2004.25.3.426
[24] Chen, X. and Mao, S. (2007) Titanium Dioxide Nanomaterials: Synthesis, Properties, Modifications, and Applications. Chemical Reviews, 107, 2891-2959.
http://dx.doi.org/10.1021/cr0500535
[25] Tsivadze, A., Ionova, G., Mikhalko, V., Ionova, I. and Gerasimova, G. (2013) Plasmon Properties of Silver Spherical Nanoparticles and Films. Protection of Metals and Chemistry of Surfaces, 49, 169-172.
http://dx.doi.org/10.1134/S207020511302010X
[26] Madigan, M., Martinko, J. and Parker, J. (2003) Brock Biology of Microorganisms. 10th Edition, Pearson, Prentice Hall, New York.
[27] Wen, L., Xiao, X., Qing, S., Hai, Z., You, O. and Yi, C. (2010) Antibacterial Activity and Mechanism of Silver Nanoparticles on Escherichia coli. Applied Microbiology and Biotechnology, 85, 1115-1122.
http://dx.doi.org/10.1007/s00253-009-2159-5                eww141023lx
标签：

评论

发表评论

此博客中的热门博文

Does Immigration Promote the Investment of the Monopolistic Firm?

In the present paper, we examine the effect of increasing uncertainty of immigrants’ growth on the optimal timing of investment of a firm that has a monopolistic power over the labor market. It is revealed that when the uncertainty of immigrants’ growth is more than a threshold level, increasing uncertainty of immigrants’ growth accelerates the optimal timing of firms’ investment and enhances the economic growth, even if the uncertainty of immigrants’ growth is formulated by the geometric Brownian motion, which is in sharp contrast to the standard result that an increase in the uncertainty postpones the optimal timing. With an increase in the immigrants over the past ten years, workforces in the host countries have been growing significantly to the extent that the immigrants represent 70% of the increase in the workforce in Europe, and 47% in the United States as OECD indicates. In the present paper, we attempted to investigate the effect of increased uncertainty caused by the growi...
发表评论
阅读全文

Education Policy Implementation: A Mechanism for Enhancing Primary Education Development in Zanzibar

Education is one of the fundamental rights of individuals; therefore, the government of a country needs to develop and strengthen educational policy and quality as well as to ensure that everyone has equal access to basic education. The improvement of access and quality of education in the world is becoming as an essential factor in development, whereas the basic education (primary school), is acknowledged as a foundation of the higher educational development for every country. To fulfill this goal, governments introduce several policies and procedures; however, it requires some reforms and participation from the politician, policymakers, and other stakeholders to re-examine educational policy so that it can lead to multiplication and betterment of the reforms. Educational reforms actually focus on accountability. A positive educational development and reform is very challenging and needs more effort and strategy on how to use and utilize the resources effectively as such it can achie...
发表评论
阅读全文