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Browsing by Subject "nanoparticles"

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Commercial Gold Nanoparticles on Untreated Aluminum Foil: Versatile, Sensitive, and Cost-Effective SERS Substrate

Gudun, Kristina; Elemessova, Zarina; Khamkhash, Laura; Ralchenko, Ekaterina; Bukasov, Rostislav (Journal of Nanomaterials, 2017-04-27)

We introduce low-cost, tunable, hybrid SERS substrate of commercial gold nanoparticles on untreated aluminum foil (AuNPs@AlF). Two or three AuNP centrifugation/resuspension cycles are proven to be critical in the assay ...
Development of new type of wound dressing based on cryogel matrix with incorporated nanoparticles

Saliev, Timur; Kulsharova, Gulsim; Akhmetova, Alma; Nurgozhin, Talgat; Whitby, Ray D.L. (The 15th IUMRS-International Conference in Asia (IUMRS-ICA 2014), 2014-08)

A cryogel (polymethyl methacrylate) has been chosen as a basis for new type of wound dressings, where incorporated silver and gold nanoparticles do provide effective antibacterial protection [1]. This function will be ...
Development of technology and study of optimized secreted products of stem cells for collaterogenesis

Sultankulov, B.; Mektepbayeva, D.; Zhiyenbay, Y.; Seralin, A.; Alibek, K. (Nazarbayev University, 2014)

Cell therapy using stem cells is a promising strategy for the treatment of ischemic diseases, nevertheless low viability of implanted cells, is one of the main problems limiting stem cell therapy. In addition, there is ...
Distributed fiber optics 3D shape sensing by means of high scattering NP-doped fibers simultaneous spatial multiplexing

Beisenova, Aidana; Issatayeva, Aizhan; Iordachita, Iulian; Blanc, Wilfried; Molardi, Carlo; Tosi, Daniele (OSA Publishing, 2019-08)

A novel approach for fiber optics 3D shape sensing, applicable to mini-invasive bio-medical devices, is presented. The approach exploits the optical backscatter reflectometry (OBR) and an innovative setup that permits the ...
Enhancement of Heavy Oil Recovery by Nanoparticle/Microwave Application

Pourafshary, Peyman; Al Farsi, Hajir (The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08)

Around 70% of the total oil resources in the world are heavy. The primary heavy oil recovery is low due to the high viscosity and low mobility; hence, thermal enhanced oil recovery methods are widely applied to increase ...
Enhancing of charge transfer efficiency from a perovskite CH3NH3PbI3 film in a layer of titanium dioxide in the presence of Ag/SiO2 nanoparticles

Ibrayev, Niazbek; Afanasyev, Dmitriy; Toleutay, Dias (The 8th International Conference on Nanomaterials and Advanced Energy Storage Systems; Nazarbayev University; National Laboratory Astana; Institute of Batteries, 2020-08)

Using of localized plasmon resonance (LPR) in metal nanoparticles (NPs) is one of the promising directions for increasing of perovskite solar cells efficiency [1, 2]. Metal NPs coated dielectric shell can be used to exclude ...
EVALUATION OF CYTOTOXICITY OF ORGANOSILICA NANOPARTICLES

Zhaisanbayeva, B. A.; Mun, E. A.; Vorobyev, I. A.; Hortelano, G.; Khutoryanskiy, V. V. (International conference "MODERN PERSPECTIVES FOR BIOMEDICAL SCIENCES: FROM BENCH TO BEDSIDE”; National Laboratory Astana, 2020)

Over the past few decades, nanoparticles have been attracting attention of researches in chemical, biomedical, pharmaceutical sciences, due to their unique physicochemical properties. This includes small size, large ...
High purity nanoparticles exceed stoichiometry limits in rebox chemistry: the nano way to cleaner water

Whitby, R. L. D.; Mikhalovsky, S. V.; Katok, K.; Cundy, A. B. (Nazarbayev University, 2014)

A potentially cheaper and more effective way of cleaning wastewater has been discovered by scientists at Nazarbayev University and the University of Brighton researching nanotechnology [1]. It is well established that ...
High sensitivity detection of NBT on novel SERS substrate

Khamkhash, L.; Ralchenko, Y.; Bukasov, R. (Nazarbayev University, 2014)

Surface-enhanced Raman scattering (SERS) is rapidly evolving as a useful analytical tool in chemical and biological analysis. The most critical aspect of SERS is the research of efficient SERSactive substrates, such as ...
New technology based on combination of cryogel and nanoparticles for wound management

Saliev, Timur; Kulsharova, Gulsim; Akhmetova, Alma; Nurgozhin, Talgat; Whitby, Ray D.L.; Mikhalovsky, S. V. (26th European Conference on Biomaterials, Liverpool, 2014-08)

The anti-microbial properties of noble metals have been known since ancient times. The new technology allows obtaining metal particles with programmed size and shape. Gold and silver nanoparticles have been employed ...
POTENTIAL APPLICABILITY OF POLYETHYLENEIMINE PEI-COATED EU2O3 AND DY2O3 NANOPARTICLES FOR CONTRAST ENHANCEMENT IN COMPUTED TOMOGRAPHY

Olifirenko, Valentina; Abduraimova, Aiganym; Kang, Moon Sung; Raja, Iruthayapandi Selestin; Duisenbayeva, Bakyt; Molkenova, Anara; Khamkhash, Laura; Hwang, Yoon-Hwae; Han, Dong-Wook; Atabaev, Timur Sh (Nano Express, 2021-02-15)

Rare-earth metal oxide nanoparticles considered promising contrast agents for x-ray computed tomography (CT) and magnetic resonance imaging (MRI). The main purpose of this study is to investigate the potential applicability ...
Recombinant nanoparticles decorated with a near-infrared fluorescent protein for in vivo imaging

Kaliyeva, M.; Shustov, V. (National Laboratory Astana, Nazarbayev University, 2017-09-15)
Synthesis and Properties of the Copper Composite Membranes

Mashentseva, Anastassiya A.; Turapbay, Kaysar.O.; Krekesheva, Aida; Temir, Adilet M. (The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08)

Composite catalysts based on track-etched membranes (TeMs) and metal nanoparticles (NPs) or nanotubes (NTs) deposited by different approaches have drawn a special attention because of attractive catalytic properties coupled ...
Synthesis of PVP-coated nanoparticles based on ferrum oxide

Yermekova, A.; Tulebayeva, D. (The 6th International Conference on Nanomaterials and Advanced Energy Storage Systems. Institute of Batteries LLP, Nazarbayev University, and PI “National Laboratory Astana”., 2018-08-08)

Magnetic nanoparticles, especial Fe3O4, are the most interesting particles among others because of their attractive properties and a wide range of application in various areas. But magnetic nanoparticles have huge surface ...
Toxicity studies of combination of silver nanoparticles and cryogels

Saliev, T.; Illsley, M.; Akhmetova, A.; Nurgozhin, T.; Mikhalovsky, S. V. (Nazarbayev University, 2014)

The combination "cryogel + nanoparticles" allows developing a new type of wound dressing, where antimicrobial properties of silver nanoparticles made have been utilized. Previous reports have shown that the production ...