Zeta potential: a surface electrical characteristic to probe the interaction of nanoparticles with normal and cancer human breast epithelial cells

Zhang, Yu; Yang, Mo; Portney, Nathaniel G.; Cui, Daxiang; Budak, Gürer G.; Özbay, Ekmel; Ozkan, Mihrimah; Ozkan, Cengiz S.

doi:10.1007/s10544-007-9139-2

Cited by 365 publications

(226 citation statements)

References 28 publications

(34 reference statements)

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“…Stability of the metal complexes is crucially important for many applications and can be determined using zeta potential measurements [18]. Zeta potential is the net surface charge of the nanoparticles when they are inside a solution.…”

Section: Particle Size and Zeta Potentialmentioning

confidence: 99%

Anticancer cytotoxicity assessment of cationic surfactants metal complexes

Negm¹,

Mohamed²,

Said³

et al. 2014

IOSRJAC

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Section: Particle Size and Zeta Potentialmentioning

confidence: 99%

Anticancer cytotoxicity assessment of cationic surfactants metal complexes

Negm¹,

Mohamed²,

Said³

et al. 2014

IOSRJAC

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“…were conducting experiments that focused on the biosensor field, to develop different methods for the determination of various ions and analytes [20]. Among the different biosensors, biosensors based on nanomaterials are very useful for biomolecular recombination pathogenic diagnosis and environmental monitoring applications [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…Among the different biosensors, biosensors based on nanomaterials are very useful for biomolecular recombination pathogenic diagnosis and environmental monitoring applications [20][21][22][23]. The nano-size of a surface and the fast interaction with the target analytes on the surface make biosensors based on a nanomaterial able to detect analytes even in small volumes.…”

Section: Introductionmentioning

confidence: 99%

Synthesising Metal Oxide Materials and Their Composite Nanostructures for Sensing and Optoelectronic Device Applications

Khun¹

2015

Linköping Studies in Science and Technology. Dissertations

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Research on nanomaterials has been revolutionized in the last few years because of the attractive properties they have in comparison to the bulk phase of similar materials. These properties are physical, chemical, catalytic and optical. Among these nanomaterials, the metal oxide nanostructures have become of particular interest to scientists for the development of different optical, biochemical and biomedical nanodevices. In the present research work using the advantageous features of nanotechnology, high performance nanodevices for optoelectronics with a wide band gap compound nanostructure and highly sensitive sensor devices have been demonstrated. The nanotechnology is used to fabricate sensitive and precise nanodevices based on nanomaterials for the application of sensing.Among metal oxide nanostructures, ZnO, CuO and NiO are attractive materials because of their unique properties; their high surface area to volume ratio, their energy band gap of 3.37 eV, 1.2 eV and 3.7 eV, respectively, biocompatibility, high electron mobility, fast electron transfer rate and they are environmental-friendly in many applications. When used in sensor devices, nanomaterials have indicated high selectivity for possible use to detect the various analytes even in small volumes. Metal oxide nanostructures have shown to be good for optoelectronic nanodevices because of their electrical characteristics, high optical absorption and low-processing temperature.In this thesis, the synthesis of different morphologies of metal oxide semiconductor nanostructures and their composite using the hydrothermal method are demonstrated for various applications. This thesis is divided into three parts:In the first part of this research work, the fabrication of well-aligned ZnO nanorods using different concentrations of composite seed layer of inorganic and organic materials when using the hydrothermal growth method is presented. The effect of the composite seed layer on the i Abstract alignment, density and optical properties of the grown ZnO nanorods is investigated (paper I).Utilizing the advantage of ZnO nanostructure, a comparative study of ZnO nanorods and thin films for chemical and biosensing application was carried out. The ZnO nanorods and thin films were functionalized with strontium ionophore membrane, immobilized the galactose oxidase and lactate oxidase for determining the strontium ions, D-galactose and L-lactic acid, respectively (paper II).In the second part, the effects of different urea concentrations on the morphology of CuO nanostructures is studied as described in paper III. Moreover, CuO nanoflowers were functionalized with cadmium ion ionophore for the detection of Cd ions, while CuO nanosheets were grown by the low temperature growth method and were used for the development of a nonenzymatic glucose sensor, respectively (Paper IV).In the last part of this thesis, composite nanostructures of CuO/ZnO and NiO/ZnO were applied to develop dopamine sensor and fast sensitive UV photodetector, respectively. A nanohybrid of C...

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“…At pH 7.4, ALN results in positive zeta potentials, while RIS results in negative ones as a function of concentration, most likely due to the differing nitrogen charges/species among the two bisphosphonates. (1) Cells may sense and react to this potential, (46)(47)(48)(49)(50)(51)(52)(53) thus it is plausible that the different affinities and zeta-potentials influence osteoblastic function differently, quantitatively and/or qualitatively.…”

Section: Discussionmentioning

confidence: 99%

Effects of alendronate and risedronate on bone material properties in actively forming trabecular bone surfaces

Hofstetter

Gamsjaeger

Phipps³

et al. 2012

Journal of Bone and Mineral Research

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We used Raman and Fourier transform infrared microspectroscopy (FTIRM) analysis to examine the intrinsic bone material properties at actively bone-forming trabecular surfaces in iliac crest biopsies from women with postmenopausal osteoporosis (PMO) who were treated with either alendronate (ALN) or risedronate (RIS). At eight study sites, women were identified who had postmenopausal osteoporosis (PMO), were at least 5 years postmenopause, and had been on long-term therapy (either 3-5 years or >5 years) with daily or weekly ALN or RIS. Following standard tetracycline labeling, biopsies were collected from 102 women (33 treated with ALN for 3-5 years , 35 with ALN for >5 years , 26 with RIS for 3-5 years , and 8 with RIS for >5 years ) and were analyzed at anatomical areas of similar tissue age in bone-forming areas (within the fluorescent double labels). The following outcomes were monitored and reported: mineral to matrix ratio (corresponding to ash weight), relative proteoglycan content (regulating mineralization commencement), mineral maturity (indicative of the mineral crystallite chemistry and stoichiometry, and having a direct bearing on crystallite shape and size), and the ratio of two of the major enzymatic collagen cross-links (pyridinoline/divalent). In RIS-5 there was a significant decrease in the relative proteoglycan content (À5.83% compared to ALN-5), while in both RIS-3 and RIS-5 there was significantly lower mineral maturity/ crystallinity (À6.78% and À13.68% versus ALN-3 and ALN-5, respectively), and pyridinoline/divalent collagen cross-link ratio (À23.09% and À41.85% versus ALN-3 and ALN-5, respectively). The results of the present study indicate that ALN and RIS exert differential effects on the intrinsic bone material properties at actively bone-forming trabecular surfaces. ß

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Zeta potential: a surface electrical characteristic to probe the interaction of nanoparticles with normal and cancer human breast epithelial cells

Cited by 365 publications

References 28 publications

Anticancer cytotoxicity assessment of cationic surfactants metal complexes

Anticancer cytotoxicity assessment of cationic surfactants metal complexes

Synthesising Metal Oxide Materials and Their Composite Nanostructures for Sensing and Optoelectronic Device Applications

Effects of alendronate and risedronate on bone material properties in actively forming trabecular bone surfaces

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