TITLE

A magnetic trap for living cells suspended in a paramagnetic buffer

AUTHOR(S)
Winkleman, Adam; Gudiksen, Katherine L.; Ryan, Declan; Whitesides, George M.; Greenfield, Derek; Prentiss, Mara
PUB. DATE
September 2004
SOURCE
Applied Physics Letters;9/20/2004, Vol. 85 Issue 12, p2411
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This manuscript describes the fabrication and use of a three-dimensional magnetic trap for diamagnetic objects in an aqueous solution of paramagnetic ions; this trap uses permanent magnets. It demonstrates trapping of polystyrene spheres, and of various types of living cells: mouse fibroblast (NIH-3T3), yeast (Saccharomyces cerevisiae), and algae (Chlamydomonas reinhardtii). For a 40 mM solution of gadolinium (III) diethylenetriaminepentaacetic acid (Gd·DTPA) in aqueous buffer, the smallest cell (particle) that could be trapped had a radius of ∼2.5 μm. The trapped particle and location of the magnetic trap can be translated in three dimensions by independent manipulation of the permanent magnets. This letter a1so characterizes the biocompatibility of the trapping solution.
ACCESSION #
14546648

 

Related Articles

  • Capture-emission process in double Poole–Frenkel well traps: Theory and experiments. Chang, C. Y.; Hsu, W. C.; Wang, S. J.; Hau, S. S. // Journal of Applied Physics;8/1/1986, Vol. 60 Issue 3, p1042 

    Focuses on a study which examined the field-dependent capture-emission process for double Poole-Frenkel well traps. Model of the two-Poole-Frenkel well trap; Sample preparation; Discussion; Conclusion.

  • Three designs for a magnetic trap that will simultaneously confine neutral atoms and a non-neutral plasma. Dubin, Daniel H. E. // Physics of Plasmas;Oct2001, Vol. 8 Issue 10 

    Three trap designs are proposed for the simultaneous confinement of neutral atoms and a non-neutral plasma in close proximity. One design uses axially symmetric static magnetic fields with a magnetic minimum in a ring around the trap axis. Axial symmetry is required for confinement of the...

  • Long-Term Confinement of Dense Positron Plasma. Meyer, Kirby J.; Moon, Namdoo; Smith, Gerald A.; Spalek, George; Thode, L.E.; VanderJack, Kevin J.; Vu, Hoanh // AIP Conference Proceedings;2003, Vol. 692 Issue 1, p184 

    Efforts to increase the storage levels of positrons in Penning-Malmberg and other types of traps are important for many applications. Positronics Research LLC (PRLLC) is developing a storage trap that will host several positron, electron, and mixed plasma experiments intended to maximize storage...

  • Transfer of ultracold 87Rb from a QUIC magnetic trap into a far off resonance optical trap. Ming, H.; van Wijngaarden, W. A. // Canadian Journal of Physics;Mar2007, Vol. 85 Issue 3, p247 

    Ultracold 87Rb atoms were transferred from a QUIC (quadrupole and Ioffe configuration) magnetic trap into a far off resonance optical trap (FORT). FORTs were created by focusing a 150 mW laser beam having a wavelength of 852 nm to a spot having a radius of 20 and 30 �m. A probe laser then...

  • Millisecond Confinement and Observation of the m=1 Diocotron Mode in a Toroidal Electron Plasma. Stoneking, M.R.; Growdon, M.A.; Milne, M.L.; Peterson, R.T. // AIP Conference Proceedings;2003, Vol. 692 Issue 1, p310 

    Electron plasmas with density in excess of 106 cm-3 are trapped for about 1 ms in a purely toroidal magnetic field (Bo = 200G, Ro = 43cm, a = 4.5cm). The trap is a partial torus, or curved Penning-Malmberg trap. The measured confinement time is an order of magnitude longer than previously...

  • Confinement of non-neutral plasmas in the Columbia Non-neutral Torus Experiment. Pedersen, Thomas Sunn; Kremer, Jason P.; Boozer, Allen H. // AIP Conference Proceedings;2003, Vol. 692 Issue 1, p302 

    The physics of non-neutral plasmas confined on magnetic surfaces is discussed. The Columbia Non-neutral Torus (CNT), a table-top ultrahigh vacuum stellarator being constructed at Columbia University, is being built to systematically study non-neutral plasmas confined on magnetic surfaces. The...

  • Experimental simulation of a gaseous plasma collector. Fiksel, G.; Kishinevsky, M.; Hershkowitz, N. // Physics of Fluids B: Plasma Physics;Apr90, Vol. 2 Issue 4, p837 

    Hydrogen plasma with a density of 3×1014 cm-3 and electron temperature of 20 eV is injected parallel to a 0.1 T B field, into hydrogen (and helium) neutral gas at 0.1–2 Torr. This plasma is opaque to molecular hydrogen but transparent to Franck–Condon neutrals. The axial...

  • The Tornado-X magnetic trap for plasma confinement and heating. Abramova, K. A.; Voronin, A. V.; Galechyan, G. A.; Lev, M. L. // Technical Physics;Feb97, Vol. 42 Issue 2, p134 

    A description of the Tornado-X magnetic trap for plasma confinement and heating is given. The results of the first investigations of a decaying plasma are presented, which lead to the conclusion that the plasma losses are determined by classical diffusion. The plasma is heated by utilizing the...

  • Profiles of ion beams and plasma parameters on a multi-frequencies microwaves large bore electron cyclotron resonance ion source with permanent magnets. Kato, Yushi; Sakamoto, Naoki; Kiriyama, Ryutaro; Takenaka, Tomoya; Kurisu, Yosuke; Nozaki, Dai; Sato, Fuminobu; Iida, Toshiyuki // Review of Scientific Instruments;Feb2012, Vol. 83 Issue 2, p02A317 

    In order to contribute to various applications of plasma and beams based on an electron cyclotron resonance, a new concept on magnetic field with all magnets on plasma production and confinement has been proposed with enhanced efficiency for broad and dense ion beam. The magnetic field...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

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

Try another library?
Sign out of this library

Other Topics