Search Results

You are looking at 1 - 10 of 1,160 items for :

  • nanoparticle x
Clear All
Open access

J. Reszczyńska, A. Jurek, I. Łącka, E. Skwarek and A. Zaleska

References Zielinska A., Skwarek E., Gazda M., Zaleska A., Hupka J., Preparation of silver nanoparticles with controlled particle size, Procedia Chemistry 1 (2009) 1560-1566. Kelsall R. W., Hamley I. W., Geoghegan M., K. Kurzydłowski [Ed.], Nanotechnologie, PWN, Warszawa 2008. Rujitanaroj P., Pimpha N., Supaphol P.: Wound-dressing materials with antibacterial activity from electrospun gelatin fiber mats containing silver nanoparticles. Polymer 49 (2008), pp. 4723

Open access

Lusi Ernawati, Ratna Balgis, Takashi Ogi, Kikuo Okuyama and Tomonori Takada

(methylmethacrylate) nanoparticles using surfactant-free emulsion polymerization. J. Colloid Interface Sci., 344(2), 528-532, DOI: 10.1016/j.jcis.2010.01.041. Chou C., Chiu W.Y., 2013. Novel Synthesis of Multi-Scaled, surfactant-free monodisperse latexes via alcoholic dispersion polymerization in a mixed ionic-nonionic initiation system. Macromolecules, 46, 3561-3569. DOI: 10.1021/ma400277s. Chou I. C., Chen S. I., Chiu W. Y., 2014. Surfactant-free dispersion polymerization as an efficient synthesis route to a successful encapsulation of nanoparticles. RSC Adv., 4

Open access

M. Maiorov, E. Blums, G. Kronkalns, A. Krumina and M. Lubane

REFERENCES 1. Tartaj, P., Morales M. P., Veintemillas-Verdaguer, S., Gonzalez-Carreno, T., and Serna, C. J. (2003). The preparation of magnetic nanoparticles for applications in biomedicine. J. Phys. D: Appl. Phys . 36, R182–R197. 2. Mahmoudi, M., Sant, S., Wang, B., Laurent, S., and Sen, T. (2011). Superparamagnetic iron oxide nanoparticles (SPIONs): Development, surface modification and applications in chemotherapy. Advanced Drug Delivery Reviews. 63 , 24–46. 3. Mozgovoi, E., N., and Blum, E. Ya. (1971). Magnetic properties of finely

Open access

Reyhane Azimi, Mohammad Jankju Borzelabad, Hassan Feizi and Amin Azimi

. & Schuster, E.W. (2012). Applications of nanomaterials in agricultural production and crop protection: A review. Crop Protection 35, 64-70. DOI: 10.1016/j.cropro.2012.01.007. 4. Guo, Z. (2000). Synthesis of the needle-like silica nanoparticles by biomineral method [J]. Chemical Journal of Chinese Universities 21(6), 847-848. 5. Hu, Y. & Schmidhalter, U. (2005). Drought and salinity: A comparison of their effects on mineral nutrition of plants. Journal Plant Nutrition Soil Science 168, 541-549. DOI: 10.1002/ jpln.200420516. 6

Open access

Amir Ghasemi Jangjoo, Hosein Ghiasi and Asghar Mesbahi

to brachytherapy source design. Med Phys 2014;41(1):011716. [4] Chandran PR, Thomas RT. Chapter 14 - Gold Nanoparticles in Cancer Drug Delivery. In: Ninan STG, editor. Nanotechnology Applications for Tissue Engineering.Oxford: William Andrew Publishing; 2015; 221-37. [5] Gilles M, Brun E, Sicard-Roselli C. Gold nanoparticles functionalization notably decreases radiosensitization through hydroxyl radical production under ionizing radiation. Colloids Surf B: Biointerfaces 2014;123:770-7. [6] Xie WZ, Friedland WF, Li WB, et al. Simulation on the

Open access

M. Jamshidiyan, A.S. Shirani and Gh. Alahyarizadeh

1 Introduction Magnetic Fe 3 O 4 nanoparticles as a kind of magnetic nanoparticle material have attracted significant interest due to their unique magnetic properties and feasibility of preparation [ 1 ]. The preparation feasibility of Fe 3 O 4 nanoparticles is one of the key advantages of the magnetic nanoparticles. Using an external magnetic field can lead to easy and rapid separation of the Fe 3 O 4 particles from their matrix or solution [ 2 , 3 ]. Other advantages of the magnetic Fe 3 O 4 nanoparticles, including scalable and non-toxic synthesis

Open access

Veno Kononenko, Mojca Narat and Damjana Drobne

References 1. Gartman A, Findlay AJ, Luther GW. Nanoparticulate pyrite and other nanoparticles are a widespread component of hydrothermal vent black smoker emissions. Chem Geol 2014;336:32-41. doi: 10.1016/j.chemgeo.2013.12.013 2. Wise JP, Goodale BC, Wise SS, Craig GA, Pongan AF, Walter RB, Thompson WD, Ng AK, Aboueissa AM, Mitani H, Spalding MJ, Mason MD. Silver nanospheres are cytotoxic and genotoxic to fish cells. Aquat Toxicol 2010;97:34-41. doi: 10.1016/j.aquatox.2009.11.016 3. Ngô C, Van de Voorde MH

Open access

Zohreh Mohammadi, Farid Dorkoosh, Saman Hosseinkhani, Tina Amini, Amir Rahimi, Abdolhossein Najafabadi and Morteza Tehrani

References S. Mansouria, Y. Cuieb, F. Winnikb, Q. Shia, P. Lavignea, M. Benderdoura, E. Beaumonta and J. C. Fernandes, Characterization of folate-chitosan-DNA nanoparticles for gene therapy, Biomaterials   27 (2006) 2060-2065; DOI: 10.1016/j.biomaterials.2005.09.020. Z. Cui and R. J. Mumper, Chitosan-based nanoparticles for topical genetic immunization, J. Control. Release   75 (2001) 409-419; DOI: 10.1016/s0168-3659(01)00407-2. F. C. MacLaughlin, R. J. Mumper, J. Wang, J. M

Open access

A. Janardhanan, T. Roshmi, Rintu Varghese, E. Soniya, Jyothis Mathew and E. Radhakrishnan

Abstract

This study was aimed to explore the nanoparticle synthesizing properties of a silver resistant Bacillus sp. isolated from a marine water sample. The 16SrDNA sequence analysis of the isolate proved it as a Bacillus strain. Very interestingly, the isolate was found to have the ability to form intracellular silver nanoparticles at room temperature within 24 hours. This was confirmed by the UV-Vis absorption analysis which showed a peak at 430 nm corresponding to the plasmon absorbance of silver nanoparticles. Further characterization of the nanoparticles was carried out by transmission electron microscopy (TEM) and scanning electron microscopy (SEM) analysis. The presence of silver nanoparticles with the size less than 100 nm was confirmed. These particles were found to be extremely stable as confirmed by the TEM analysis after three months of purification. So, the current study is the demonstration of an efficient synthesis of stable silver nanoparticles by a marine Bacillus strain.

Open access

M. Luty-Błocho, M. Wojnicki, J. Grzonka and K.J. Kurzydłowski

Abstract

In this work, the synthesis of the spherical clusters containing 3-4 nm platinum nanoparticles enclosed in a polymer capsule is described. The process of nanoparticles formation was intensified by using a microreactor. The application of microreactor enabled us to shorten the time of redox reaction and nucleation stage up to 6 seconds at 105°C in comparison with the process carried out in a batch reactor at 40°C. Using Vitamin C as a bio-reducer of platinum(IV) complexes and biocompatible polymers, the products non-toxic and environmentally friendly, stable for at least 9 months, were obtained. Presented procedure for nanoparticles synthesis seems to be an alternative method for platinum recovery from solutions containing platinum(IV) chloride complexions.