21 Posts with tag: kim

paper18

Carbon Nanotubes as Intracellular Transporters for Proteins and DNA: An Investigation of the Uptake Mechanism and Pathway

Nadine Wong Shi Kam, Zhuang Liu, and Hongjie Dai

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Cellular-uptake mechanism of short SWNTs is energy-dependent endocytosis expecially clathrin-coated pits.

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paper17

Uptake of C60 by human monocyte macrophages, its localization and implications for toxicity: Studied by high resolution electron microscopy and electron tomography

Alexandra E. Porter a,¤, Karin Muller b, Jeremy Skepper b, Paul Midgley c, Mark Welland a

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Electron tomography (EFTEM and STEM ) could be used to visualzed cell structures without staining.

C60 accumulates at various intracellular sites in juman macrophages.

Do you think this paper is well organized? I feel it is well organized becuase it indicates research ...

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paper16

Nanotoxicology: An Emerging Discipline Evolving from Studies of Ultrafine Particles

Günter Oberdörster, Eva Oberdörster, and Jan Oberdörster

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concept of nanotoxicology

entry, translocation, and clearance of nanoparticles

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paper15

Nanomaterials and nanoparticles: Sources and toxicity

Cristina Buzeaa, Ivan I. Pachecob, Kevin Robbiec

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variety way of uptaking nanoparticle and health effect

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paper14

Surface modification of superparamagnetic magnetite nanoparticles and their intracellular uptake

Yong Zhang, Nathan Kohler and Miqin Zhang

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Nanoparticles with PEG and folic acid can be used for cancer therapy because they resist the protein adsorption.

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paper13

Silver nanoparticles as antimicrobial agent: a case study on E. coli as a model for Gram-negative bacteria

Ivan Sondi ∗ and Branka Salopek-Sondi

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Using agar plates and liquid LB medium to know the growth of E.coli exposed in nanoparticles

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paper12

Real-time detection of airborne viruses on a mass-sensitive device

Joonhyung Lee,1,2 Jaesung Jang,3 Demir Akin,1,4 Cagri A. Savran,1,4,5,6 and Rashid Bashir7

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I read this to know more about how to count the number of virues or particle by QCM.

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paper11

Ecotoxicity of engineered nanoparticles to aquatic invertebrates: a brief review and recommendations for future toxicity testing

A. Baun Æ N. B. Hartmann Æ K. Grieger Æ K. O. Kusk

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It uses aquatic food web concept for nanotoxicity.

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Aerosol

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“Emerging Issues in Nanoparticle Aerosol Science and Technology (NAST)”

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paper10

Electrostatics and nanoparticles: What’s the same, what’s different?

Mark N. Horenstein

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The paper illustrated creating, manipulating and utilization of nanoparticles. I looked this paper to know what types of generations are used. For generating solid nanoparticles, there are many methods. Electrospary and evaporation method, plasma spray, laser ablation, arc discharges and commercial park generator.

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paper9

Aerosol generation and measurement of multi-wall carbon nanotubes

Toshihiko Myojo Æ Takako Oyabu Æ Kenichiro Nishi Æ Chikara Kadoya Æ Isamu Tanaka Æ Mariko Ono-Ogasawara Æ Hirokazu Sakae Æ Tadashi Shirai

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The paper is about the determining the characterization of aerosolized multi-walled carbon nanotubes. Palas RBS-1000 was used to generate particles then they go to the two-component fluidized bed. A condensation particle counter and a Nanoparticle Surface Area Monitor were used to characterize the number and surface concentration of ...

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paper8

Imaging nanoparticles in cells by nanomechanical holography

LAURENE TETARD1,2, ALI PASSIAN1,2*, KATHERINE T. VENMAR1, RACHEL M. LYNCH1, BRYNN H. VOY1, GAJENDRA SHEKHAWAT3, VINAYAK P. DRAVID3 AND THOMAS THUNDAT1,2

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The article is about how the SNFUH is well observed the nanoparticles uptake on cell. Single-walled carbon nanohorns (SWCNHs) were used. Cell, Erythrocytes and peripheral blood samples were used to see the nanoparticles uptake. Lastly, to verify the result that the SNFUH is good method to see nanoparticle ...

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paper7

Effects of nanomaterial physicochemical properties on in vivo toxicity

Kristin L. Aillona, b, Yumei Xiea, Nashwa El-Gendya, b, Cory J. Berklanda, b and M. Laird Forresta

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To examine the intracellular uptake of the Au NPs, confocal fluorescence microscopy was used. Uptaking of the NPs were result from receptor-mediated endocytosis and clathrin-mediated process More free energy generates from wrapping time and the receptor-ligand interaction for NPs into the cell. Transferrin-coated rod-shaped NPs uptakes less than transferring-coated spherical NPs. Uptake of ...

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paper6

Elucidating the Mechanism of Cellular Uptake and Removal of Protein-Coated Gold Nanoparticles of Different Sizes and Shapes

B. Devika Chithrani†,‡ and Warren C. W. Chan*,†,‡,§

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Interaction of nanomaterials with the mitochondria and cell nucleus and interaction with surrounding environment (blood components, immune system. Metabolic modification of nanomaterials) are main mechanisms of nanoparticle toxicity.

Dendrimers – size and generation; exposure duration; biodistribution; and the rate, location and mechanism of metabolism is related to the dendrimer toxicity. Cationic amine terminal groups are ...

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paper5

Toxicological effects of multi-wall carbon nanotubes in rats

Aihong Liu Æ Kangning Sun Æ Jiafeng Yang Æ Dongmei Zhao

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The lung toxicity of multi-wall carbon nanotubes was studied by the X-ray diffraction and Transmission Electron Microscopy. Male Vister rats were used for experiment.

Exposed to different dose MWCNTs by intratracheal instillation – 3, 5 and 7 mg/kg dose – high dose has more inflammation

Different exposure time (Rat exposed to MUCNTs of 3mg/kg) – The longer exposure time, the thicker ...

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paper4

Acute Toxicity and Prothrombotic Effects of Quantum Dots:Impact of Surface Charge

Jorina Geys,1 Abderrahim Nemmar,1,2 Erik Verbeken,3 Erik Smolders,4 Monica Ratoi,5 Marc F. Hoylaerts,6 Benoit Nemery,1 and Peter H.M. Hoet1

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Inflammatory properties, tissue distribution and prothrombotic effects after intravenous injection measure to QDs with Carboxyl surface coating and QOs with amine surface coating using transmission electron microscopy and dynamic light scattering.

Particle characterization – Amine-QDs have more negative zeta potential ...

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paper3

Cellular Toxicity of Carbon-Based Nanomaterials Arnaud Magrez,*,† Sandor Kasas,‡,§ Vale´rie Salicio,| Nathalie Pasquier,^ Jin Won Seo,† Marco Celio,| Stefan Catsicas,‡ Beat Schwaller,| and La´szlo´ Forro´ †

Effect of shape and surface chemical properties on the toxicity. Celatine, MUCNTs, CNFs, Carbon black are used and H596 cells are used for the experiment. Number of living cells and optical density was established though MTT assay. An accurate quantification of cell numbers could be known through them. For the shape toxicity, The ...

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paper2

Drug Delivery with Carbon Nanotubes for In vivo Cancer Treatment Zhuang Liu,1 Kai Chen,2 Corrine Davis,3 Sarah Sherlock,1 Qizhen Cao,2 Xiaoyuan Chen,2 and Hongjie Dai

(Nano Safety) SWNT-PTX is more effective than clinical Taxol for treatment in a murine 4T1 breast cancer model. Longer blood circulation and EPR(enhanced permeability and retention) effects result to have higher tumor uptake of PTX. SWNT-PTX slow down the growth of tumor at a low drug dose and ...

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paper

Carbon nanotubes as multifunctional biological transporters and near-infrared agents for selective cancer cell destruction - Nadine Wong Shi Kam*, Michael O’Connell*, Jeffrey A. Wisdom†, and Hongjie Dai*‡

(Nano Safety) NIR radiation and optical property of SWNT can cause cancer cell death without destroying normal cell. Functionalization of SWNT by PEG ligands could recognize and targets timorous cell types. Combining these two factor can open for drug delivery and cancer therapy.

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Meeting 09/18/09

List of chemicals made by Rekha 4 students enrolled for small scale algal cultivation ABE100 Sun presented the research paper : EFFECT OF NANOMATERIAL PHYSICOCHEMICAL PROPERTIES ON INVIVO TOXICITY. Rekha presented the paper ISOLATION OF INTACT CHAINS OF polyP FROM PROPIONIBACTERIUM shermanii Goutam taught the use of REFWORKS to build library of references.

Tags: goutam , kim , particles , Rekha

Sun Min's first post

This is fun!

Tags: kim , nanotechnology