Zinc-oxide nanoparticles

Xiong F1M, Shchukin DG, Mohwald H, Xu Y, Xia YY (2009) Sonochemical synthesis of hghly luminescent zinc oxide nanoparticles doped with magnesium (II). Angew Chem Int Ed... 

George, S. et al. (2010) Use of a rapid cytotoxicity screening approach to engineer a safer zinc oxide nanoparticle through iron doping. ACS Nano, 4 (1), 15-29. 

Jang, Y.J., Simer, C. and Ohm, T. (2006) Comparison of zinc oxide nanoparticles and its nano-crystalline particles on the photocatalytic degradation of methylene blue. Materials Research Bulletin, 41,67-77. 

As an example of the latter technique, Volkman et al. demonstrated the feasibility of using spin-cast zinc oxide nanoparticles encapsulated in 1-dodecanethiol to fabricate a functional transistor.44 The zinc oxide was deposited on a thermally grown silicon dioxide layer on a conventional silicon wafer, with thermally evaporated gold source and drain electrodes. As reported, the process requires very small particles (3nm or less) and a 400 °C forming gas anneal. A similar approach was also reported by Petrat, demonstrating n-channel thin-film transistor operation using a nanoparticle solution of zinc oxide dispersed onto a thermally grown silicon dioxide layer on a conventional... 

Figure 1. SEM images of different electrodeposited metal oxide nanoparticles Ti02 nanotube arrays grown on Ti substrate(a) cobalt oxide nanoparticles onto glassy carbon electrode (b) nickel oxide nanoparticles(c) and zinc oxide nanoparticles Reproduced from references [ 138],[ 102],[ 137] and [135] with permission from Elsevier.

Figure 2. The mechanism for preparation of Nano ZnO-CHIT electrode and immobilization of ChOx onto NanoZnO-CHIT Nanocomposite, Reprinted from Analytica Chimica Acta, 616, R. Khan, A. Kaushik, P. R. Solanki, A.A. Ansari, M.K. Pandy, B.D. Malhotra, Zinc oxide nanoparticles -chitosan composite film for cholesterol biosensor, 209,Copyright( 2008) with permission fom Elsevier.

Another application of Zinc oxide nanostructure is immobilization of uricace onto ZnO nanorod and fabrication a sensitive biosensor for uric acid detection [167], The biosensor successfully used for micromolar detection of uric acid in the presence serious interferences, glucose, ascorbic acid, and 1-cysteine. The apparent KM value for the uric acid biosensor is 0.238 mM, showing high affinity of the biosensor. Direct electron transfer of SOD at a physical vapor deposited zinc oxide nanoparticles surface was investigated [168], In comparison to SOD immobilized onto ZnO nanodisks [169], the electron transfer rate constant is small and a quasi- reversible electrochemical behavior observed. A novel... 

Lenz AG, Karg E, Lentner B et al (2009) A dose-controlled system for air-liquid interface cell exposure and application to zinc oxide nanoparticles. Part Fibre Toxicol 6 32... 

NanoTek zinc oxide - nanoparticle size zinc oxide manufactured by physical vapor synthesis process Societe des Blancs de Zinc de la Mediterranee, Marseille, France Cachet Or - French process zinc oxide Zinc Corporation of America, Monaca, PA, USA Kadox - French process zinc oxide... 

Beek W. J. E., Wienk M. M. and Janssen R. A. J. (2004), Efficient hybrid solar cells from zinc oxide nanoparticles and a conjngated polymer , Adv. Mat. 16, 1009-1012. 

The growth of zinc-oxide nanoparticles from norborene-based block copolymers was demonstrated by Kofinas et al.78 The block copolymer consisted of polynorborene and poly(norborene dicarboxylic acid) (block-size ratio = 400 50) was synthesized by ROMP (Scheme 5.7).78 In a tetrahydrofuran (THF) solution, ZnCl2 was introduced into the dicarboxylic acid units and the resulting Zn2+-containing block film exhibited spherical domains... 

This was conducted through a simple and soft reaction of the zinc metal with methanol (CH3OH) at 300 °C in order to synthesize zinc oxide nanoparticles. Produced nanoparticles had an average diameter of 100 nm (i.e., in the range of 50—200 nm). A plausible mechanism is proposed for the formation of these nanoparticles and it is expected that this synthetic technique can be extended to obtain other metal oxides. The addition of the ethylenediamine to this reaction acted as a shape-controlling agent and resulted in the formation of nanorods. Mainly, the reaction involved the cleavage of C—O bond of the methanol, which occurs readily on the Zn surface (Shah, 2008). 

Shah, M.A., 2008. Formation of zinc oxide nanoparticles by the reaction of zinc metal with methanol at very low temperature. Afr. Phys. 2, 11. 

Nagarajan, S., Kuppusamy, K.A., 2013. Extracellular synthesis of zinc oxide nanoparticle using seaweeds of gulf of Mannar, India. J. Nanobiotechnology 11, 1 — 11. 

W. J. E. Beek, M. M. Wienk, R. A. J. Janssen, Efficient Hybrid Solar Cells from Zinc Oxide Nanoparticles and a Conjugated Polymer. Advanced Materials 2004,16,1009-1013. 

An improved photovoltaic performance was observed when the zinc oxide nanoparticles were stabilized with a semiconducting surfactant, i.e., 2-(2-ethylhexyl) -1,3-dioxo-2,3-dihydro-1 H-benzo [de] isoquinoline-6,7-dicarboxylic acid (BQ). The incorporation of this surfactant increases the power conversion efficiency. In contrast, a typical insulating surfactant, such as oleic acid, decreases the efficiency in such a device [145]. 

Nanocomposites with zinc oxide nanoparticles based on BPI have been fabricated from zinc oxide nanoparticles that are modified with 3-aminopropyltriethoxylsilane as coupling agent [22]. The zinc oxide nanoparticles effect an enhancement of the thermal stability of nanocomposite in comparison to the neat BPI. 

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