TITLE

Cell patterning using microstructured ferromagnetic thin films

AUTHOR(S)
Mei-Feng Lai; Chia-Yi Chen; Chiun-Peng Lee; Hao-Ting Huang; Tzong-Rong Ger; Zung-Hang Wei
PUB. DATE
May 2010
SOURCE
Applied Physics Letters;5/3/2010, Vol. 96 Issue 18, p183701
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Magnetic cell patterning is demonstrated through controlling the micromagnetic states in microstructured ferromagnetic thin films. The number of magnetic nanoparticles entering the cells by endocytosis can be determined by magnetophoresis experiment and is found to be dependent of the cocultured extracellular magnetic nanoparticles concentrations. In zigzag magnetic films the effects of cell patterning differ for magnetic films at as-deposited state and at remanent states after applying fields in different directions. Remanent states of concentric rings are proposed for cell patterning. Cells can be arranged at any positions in sequence by selectively changing the magnetic field directions.
ACCESSION #
50309222

 

Related Articles

  • Anisotropic magnetoresistive sensors of the magnetic field and current. Kasatkin, S.; Murav’ev, A.; Plotnikova, N.; Amelichev, V.; Galushkov, A.; Gamarts, I.; Lopatin, V.; Saurov, A. // Automation & Remote Control;Jun2009, Vol. 70 Issue 6, p1043 

    Results are presented of the work in the domain of investigation and production of thin-filmed anisotropic magnetoresistive sensors (AMRSs) of the magnetic field and current on the basis of the single-layer or the double-layer metallic ferromagnetic nanostructure with a thickness of the magnetic...

  • Magnetic domain formation within patterned NiFe/Cu/Co ellipses. Krycka, K. L.; Maranville, B. B.; Borchers, J. A.; Castaño, F. J.; Ng, B. G.; Perkinson, J. C.; Ross, C. A. // Journal of Applied Physics;Apr2009, Vol. 105 Issue 7, p07C120 

    Neutron reflectometry was used to study the formation and evolution of magnetic domains within a patterned array of NiFe/Cu/Co ellipses. The measurements directly show that domains form upon relaxation away from hard axis magnetic saturation, and their size and shape distributions are invariant...

  • Magnetic domain pinning in patterned magneto-optical material. Wu, Te-Ho; Wu, J.C. // Journal of Applied Physics;4/15/1999 Part 2B of 2, Vol. 85 Issue 8, p5980 

    Reports on a study on pinning magnetic domains with defined shapes for magneto-optical thin film material. Fabrication of pinning array of holes on the substrate; Application of external magnetic field to the film plane; Imaging by atomic force microscopy.

  • Quantitative Lorentz transmission electron microscopy of structured thin permalloy films. Nepijko, S. A.; Schönhense, G. // Applied Physics A: Materials Science & Processing;Aug2009, Vol. 96 Issue 3, p671 

    The defocusing of images of ferromagnetic particles in the transmission electron microscope gives rise to magnetic contrast (Lorentz microscopy). We have developed a theory which allows from this contrast to determine quantitatively the distribution of the magnetic fields of the specimen. The...

  • Magnetic anisotropy by ferromagnetic particles alignment in a magnetic field. Yamaguchi, K.; Matsumoto, K.; Fujii, T. // Journal of Applied Physics;5/1/1990, Vol. 67 Issue 9, p4493 

    Presents a study which investigated the magnetic and optical properties of films composed of ferromagnetic fine particles aligned in a magnetic field. Experimental details; Results and discussion; Conclusions.

  • Effect of radio-frequency noise suppression on the coplanar transmission line using soft magnetic thin films. Kim, Ki Hyeon; Yamaguchi, Masahiro; Arai, Ken-Ichi; Nagura, Hideaki; Ohnuma, Shigehiro // Journal of Applied Physics;5/15/2003, Vol. 93 Issue 10, p8002 

    We demonstrated the radio-frequency (rf) noise suppressor using soft magnetic films on a coplanar transmission line from 0.1 to 20 GHz. The coplanar transmission line is composed of magnetic film/polyimide/Cu transmission line/seed layer (Cu/Ti)/glass substrate with the dimension of 50 μm...

  • Anisotropy dispersion effects on the high frequency behavior of soft magnetic Fe–Co–N thin films. Sun, N. X.; Wang, S. X. // Journal of Applied Physics;5/15/2003, Vol. 93 Issue 10, p6468 

    The high frequency behavior beyond 1 GHz of a Fe-Co-N film and a NiFe\Fe-Co-N film [NiFe stands for Ni[SUB18]Fe[SUB19] wt.%)], shown as promising magnetic write head materials previously, has been) investigated using a pulse inductive microwave magnetometer in this work. The NiF\Fe-Co-N film,...

  • Anomalous magnetoresistance in high-temperature organic-based magnetic semiconducting V(TCNE)[sub x] films. Raju, N. P.; Savrin, T.; Prigodin, V. N.; Pokhodnya, K. I.; Miller, Joel S.; Epstein, A. J. // Journal of Applied Physics;5/15/2003, Vol. 93 Issue 10, p6799 

    Anomalous positive magnetoresistance (MR) in high temperature organic-based magnet V(TCNE)[SUBx] (TCNE=tetracynoethylene) thin films is reported. MR increases linearly with applied magnetic field and shows a maximum at the ferromagnetic ordering temperature. The suggested roles of oppositely...

  • Finite temperature micromagnetics and magnetic measurements of submicron patterned permalloy thin films. Deak, James G. // Journal of Applied Physics;5/15/2003, Vol. 93 Issue 10, p6814 

    Micromagnetic simulation using the deterministic Landau-Lifshitz-Gilbert (LLG) equation is inadequate for predicting the coercivity of submicron patterned thin films. The discrepancy results because the deterministic LLG equation only provides a zero-temperature description of the magnetization...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics