Offical-Logo
Offical-Logo
Zhengzhou, Henan China
24 hours At your service

agglomeration sedimentation cell

Agglomeration and sedimentation of TiO2 nanoparticles in ...

01-01-2009  Particle agglomeration led to sedimentation. The sedimentation was faster as the concentration increased . This indicates that the particle concentration affected the rate and degree of the agglomeration by enhancing the rate of direct particle-to-particle interaction. Download : Download full-size image; Fig. 3.

Get PriceEmail contact

Agglomeration, sedimentation, and cellular toxicity of ...

25-11-2010  There was no significant change in the viability of 293 cells. This in vitro test suggests that the agglomeration and sedimentation of alumina NPs affected cellular viability depending on cell types such as monocytes (THP-1), macrophages (J774A.1), lung carcinoma cells (A549), and embryonic kidney cells (293).

Get PriceEmail contact

Agglomeration, sedimentation, and cellular toxicity of ...

The state of agglomeration and the extent of sedimentation play important roles in delivered dosimetry, cellular uptake, and the resultant cytotoxic effects of NPs in biological systems. 15, 24 ...

Get PriceEmail contact

Assessment of agglomeration, co-sedimentation and

ΔOD > 0 represents the occurrence of NP−cell hetero-agglomeration and co-sedimentation, whereas zero or negative ΔOD values indicate no or very weak agglomeration between NPs and cells 36.

Get PriceEmail contact

(PDF) Agglomeration and sedimentation of TiO 2 ...

All rights reserved. doi:10.1016/j.colsurfb.2008.09.014 84 Z.E. Allouni et al. / Colloids and Surfaces B: Biointerfaces 68 (2009) 83–87 This paper presents the agglomeration and sedimentation hydrodynamic diameter (Z-average mean) was calculated from the behavior of TiO2 nanoparticles in RPMI, a widely used cell cul- autocorrelation function of the intensity of light scattered from the ture

Get PriceEmail contact

(PDF) Agglomeration and sedimentation of TiO2 ...

The agglomeration rate and sedimen- tation rate increased with particles’ concentration. The size of the agglomerates at 1 00 mg/L TiO 2was significantly reduced, from 1620 ±160to348±13 and...

Get PriceEmail contact

Agglomeration and sedimentation of TiO2 nanoparticles in ...

The agglomeration rate and sedimentation rate increased with particles' concentration. The size of the agglomerates at 100 mg/L TiO2 was significantly reduced, from 1620+/-160 to 348+/-13 and 378+/-15 nm, upon the addition of 10% (v/v) FBS and 1% (w/w) HSA, respectively.

Get PriceEmail contact

Cell Aggregation and Sedimentation Taylor Francis Group

Cell Aggregation and Sedimentation book. By Robert H. Davis. Book Cell Adhesion. Click here to navigate to parent product. Edition 1st Edition. First Published 1995. Imprint Routledge. Pages 51. eBook ISBN 9781315138954.

Get PriceEmail contact

ISDD: A computational model of particle sedimentation ...

30-11-2010  Most nanoparticles exist in some degree of agglomeration in cell culture medium . Agglomeration affects particle shape, density and size, with corresponding effects on both diffusion and sedimentation [12, 30].

Get PriceEmail contact

Agglomeration, sedimentation, and cellular toxicity of ...

This in vitro test suggests that the agglomeration and sedimentation of alumina NPs affected cellular viability depending on cell types such as monocytes (THP-1), macrophages (J774A.1), lung ...

Get PriceEmail contact

(PDF) Agglomeration and sedimentation of TiO2 ...

Agglomeration and sedimentation of TiO 2 nanoparticles in cell culture medium Zouhir E. Allouni a , Mihaela R. Cimpan a ,P a u lJ .H ø l b , c , ∗ , Tore Skodvin d , Nils R. Gjerdet a , b

Get PriceEmail contact

Agglomeration and sedimentation of TiO2 nanoparticles

The agglomeration rate and sedimentation rate increased with particles’ concentration. The size of the agglomerates at 100 mg/L TiO 2 was significantly reduced, from 1620 ± 160 to 348 ± 13 and 378 ± 15 nm, upon the addition of 10% (v/v) FBS and 1% (w/w) HSA, respectively.

Get PriceEmail contact

Assessment of agglomeration, co-sedimentation and

ΔOD > 0 represents the occurrence of NP−cell hetero-agglomeration and co-sedimentation, whereas zero or negative ΔOD values indicate no or very weak agglomeration between NPs and cells 36.

Get PriceEmail contact

(PDF) Agglomeration and sedimentation of TiO 2 ...

This study investigates the effect of particle concentration, ionic Accepted 16 September 2008 strength, pH, and the presence of fetal bovine serum (FBS) and human serum albumin (HSA) on the Available online 25 September 2008 colloidal stability of TiO2 nanoparticles in RPMI cell culture medium, by sedimentation measurements, dynamic light scattering, and electrokinetic measurements ( -potential).

Get PriceEmail contact

Sedimentation of agglomerated nanoparticles under cell ...

CONFERENCE PROCEEDINGS Papers Presentations Journals. Advanced Photonics Journal of Applied Remote Sensing

Get PriceEmail contact

Effect of Interparticle Interactions on Agglomeration

10-05-2016  The sedimentation half-times ts of initially monodisperse dispersions of 750, 505, and 350 nm silica microspheres were measured in water, in ethanol, and in aqueous NaBr solutions of concentration cNaBr ranging from 50 to 1000 mM, where the particles may have formed clusters. In water and in ethanol, ts was about 8, 18, and 33 h for the 750, 505, and 350 nm particles, respectively.

Get PriceEmail contact

Effects of agglomeration on in vitro dosimetry and ...

Agglomeration of nanoparticles (NPs) in cell culture media can alter their physicochemical properties and colloidal behaviour, which may affect their cellular association and cytotoxicity. Herein, we investigated the impact of agglomeration of silver NPs on

Get PriceEmail contact

Low High Sedimentation Rate + How to Lower

13-01-2021  In a study on 44 children with sickle-cell disease, their average ESR levels were 7.9 mm/hr when they were healthy . 2) Red Blood Cells Abnormalities. Red blood cells that have different shapes or sizes decrease the sedimentation (falling) rate. These conditions include [98, 116, 152, 157]: Spherocytosis (red blood cells are shaped like circles)

Get PriceEmail contact

Quantitative characterization of nanoparticle ...

Quantitative analysis of nanoparticle dispersion state within biological media is essential to understanding cellular uptake and the roles of diffusion, sedimentation, and endocytosis in determining nanoparticle dose. The dispersion of polymer-coated CdTe/ZnS quantum dots in water and cell growth medium with and without fetal bovine serum was analyzed by transmission electron microscopy (TEM ...

Get PriceEmail contact

Red blood cell aggregation and sedimentation: the role of ...

It was found that a severely abnormal red cell morphology reduced the sedimentation rate in a standardized, fibrinogen-rich plasma to about half. These results indicate that the shape plays a crucial role in the aggregation and sedimentation of red cells and they may contribute to the understanding of the interaction of red cells with other cells such as endothelium.

Get PriceEmail contact

Assessment of agglomeration, co-sedimentation and

This interaction favoured the hetero-agglomeration and co-sedimentation of nTiO2. The extent of nTiO2 agglomeration under ... An increase in nTiO2 internalisation in Paramecium cells was also ...

Get PriceEmail contact

Study of agglomeration and magnetic sedimentation of ...

Study of agglomeration and magnetic sedimentation of ... In this work the sedimentation dynamics of [email protected] were evaluated for water systems with addition of calcium, zinc and sodium ions in a concentration range of 0-40 mg/L in the presence and absence of a vertical magnetic field of 0.2 T.

Get PriceEmail contact

ISDD: A computational model of particle sedimentation ...

30-11-2010  Most nanoparticles exist in some degree of agglomeration in cell culture medium . Agglomeration affects particle shape, density and size, with corresponding effects on both diffusion and sedimentation [12, 30].

Get PriceEmail contact

A model for motion and sedimentation of cylindrical red ...

N2 - When blood flows slowly in a narrow tube, red-cell aggregation results in formation of an approximately cylindrical “core” of red cells, which moves as a rigid body. The core is denser than the surrounding fluid, and sedimentation is observed in horizontal tubes.

Get PriceEmail contact

Disintegration of dried yeast cells and its effect on ...

The destruction of the agglomeration and the cell‐wall structure increased the hydration of the cell and thereby increased the stability of the suspension. The sedimentation and the viscosity of the cell suspension corresponded to the morphological changes and the extractability of protein in the cell suspensions with different treatments.

Get PriceEmail contact

Effects of agglomeration on in vitro dosimetry and ...

Agglomeration of nanoparticles (NPs) in cell culture media can alter their physicochemical properties and colloidal behaviour, which may affect their cellular association and cytotoxicity. Herein, we investigated the impact of agglomeration of silver NPs on their effective dose and cellular association under various in vitro assay conditions.

Get PriceEmail contact

SEDIMENTATION ANALYSIS DNAFROM AND UNIRRADIATED L-CELLS

SEDIMENTATION ANALYSIS OF DNAFROM IRRADIATED ANDUNIRRADIATED L-CELLS M. W. MCBURNEY, F. L. GRAHAM, and G. F. WHITMORE From the Department ofMedical Biophysics, University ofToronto, andthe Ontario CancerInstitute, Toronto, Ontario, Canada ABsrRAcr DNA,released fromunirradiated mouseL-cells gently lysed in a thin layer of2%sucrose ontop ofanalkaline sucrose

Get PriceEmail contact

Stable nanoparticle aggregates/agglomerates of different ...

agglomeration states in aqueous solutions compatible with cell-based assays. Here, we disperse gold, silver, cerium oxide, and positively-charged polystyrene nanoparticles in cell culture media, using the timing between mixing steps to control agglomerate size in otherwise identical media.

Get PriceEmail contact

Quantitative characterization of nanoparticle ...

Abstract. Quantitative analysis of nanoparticle dispersion state within biological media is essential to understanding cellular uptake and the roles of diffusion, sedimentation, and endocytosis in determining nanoparticle dose. The dispersion of polymer-coated CdTe/ZnS quantum dots in water and cell growth medium with and without fetal bovine serum ...

Get PriceEmail contact