Research and Teaching Blog

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

link

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

Posted on January 4, 2010 0 Comments
Tags: kim

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

link

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 ...

Posted on December 30, 2009 0 Comments
Tags: kim

paper16

Nanotoxicology: An Emerging Discipline Evolving from Studies of Ultrafine Particles

Günter Oberdörster, Eva Oberdörster, and Jan Oberdörster

link

concept of nanotoxicology

entry, translocation, and clearance of nanoparticles

Posted on December 29, 2009 0 Comments
Tags: kim

paper15

Nanomaterials and nanoparticles: Sources and toxicity

Cristina Buzeaa, Ivan I. Pachecob, Kevin Robbiec

link

variety way of uptaking nanoparticle and health effect

Posted on December 27, 2009 0 Comments
Tags: kim

paper14

Surface modification of superparamagnetic magnetite nanoparticles and their intracellular uptake

Yong Zhang, Nathan Kohler and Miqin Zhang

link

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

Posted on November 24, 2009 0 Comments
Tags: kim

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

link

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

Posted on November 23, 2009 0 Comments
Tags: kim

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

link

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

Posted on November 18, 2009 0 Comments
Tags: kim

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

link

It uses aquatic food web concept for nanotoxicity.

Posted on November 16, 2009 0 Comments
Tags: kim

Aerosol

link

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

Posted on October 22, 2009 0 Comments
Tags: kim

paper10

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

Mark N. Horenstein

link

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.

Posted on October 22, 2009 0 Comments
Tags: kim

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

link

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 ...

Posted on October 22, 2009 0 Comments
Tags: kim

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

link

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 ...

Posted on October 22, 2009 0 Comments
Tags: kim

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

link

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 ...

Posted on October 9, 2009 0 Comments
Tags: kim

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*,†,‡,§

link

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 ...

Posted on October 9, 2009 0 Comments
Tags: kim

paper5

Toxicological effects of multi-wall carbon nanotubes in rats

Aihong Liu Æ Kangning Sun Æ Jiafeng Yang Æ Dongmei Zhao

link

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 ...

Posted on October 6, 2009 0 Comments
Tags: kim

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

link

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 ...

Posted on October 3, 2009 0 Comments
Tags: kim

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 ...

Posted on October 1, 2009 0 Comments
Tags: kim

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 ...

Posted on October 1, 2009 0 Comments
Tags: kim

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.

Posted on October 1, 2009 0 Comments
Tags: kim

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.

Posted on September 18, 2009 0 Comments
Tags: goutam , kim , particles , Rekha

Sun Min's first post

This is fun!

Posted on August 27, 2009 0 Comments
Tags: kim , nanotechnology

 
Loading