5 research outputs found
La actividad turÃstica en base a la cooperación: Sudamérica
Treball Final de Grau en Turisme. Codi: TU0944. Curs acadèmic: 2016/201
Steering Acoustically Propelled Nanowire Motors toward Cells in a Biologically Compatible Environment Using Magnetic Fields
The
recent discovery of fuel-free propulsion of nanomotors using
acoustic energy has provided a new avenue for using nanomotors in
biocompatible media. Crucial to the application of nanomotors in biosensing
and biomedical applications is the ability to remotely control and
steer them toward targets of interest, such as specific cells and
tissues. We demonstrate <i>in vitro</i> magnetic steering
of acoustically powered nanorod motors in a biologically compatible
environment. Steering was accomplished by incorporating (40 ±
5) nm thick nickel stripes into the electrochemically grown nanowires.
An external magnetic field of 40–45 mT was used to orient the
motors, which were acoustically propelled along their long axes. In
the absence of a magnetic field, (300 ± 30) nm diameter, (4.3
± 0.2) μm long nanowires with (40 ± 5) nm thick magnetic
stripes exhibit the same self-acoustophoretic behavior, including
pattern formation into concentric nanowire circles, aligned spinning
chains, and autonomous axial motion, as their non-magnetic counterparts.
In a magnetic field, these wires and their paths are oriented as evidenced
by their relatively linear trajectories. Coordinated motion of multiple
motors and targeting of individual motors toward HeLa cells with micrometer-level
precision was demonstrated
Steering Acoustically Propelled Nanowire Motors toward Cells in a Biologically Compatible Environment Using Magnetic Fields
The
recent discovery of fuel-free propulsion of nanomotors using
acoustic energy has provided a new avenue for using nanomotors in
biocompatible media. Crucial to the application of nanomotors in biosensing
and biomedical applications is the ability to remotely control and
steer them toward targets of interest, such as specific cells and
tissues. We demonstrate <i>in vitro</i> magnetic steering
of acoustically powered nanorod motors in a biologically compatible
environment. Steering was accomplished by incorporating (40 ±
5) nm thick nickel stripes into the electrochemically grown nanowires.
An external magnetic field of 40–45 mT was used to orient the
motors, which were acoustically propelled along their long axes. In
the absence of a magnetic field, (300 ± 30) nm diameter, (4.3
± 0.2) μm long nanowires with (40 ± 5) nm thick magnetic
stripes exhibit the same self-acoustophoretic behavior, including
pattern formation into concentric nanowire circles, aligned spinning
chains, and autonomous axial motion, as their non-magnetic counterparts.
In a magnetic field, these wires and their paths are oriented as evidenced
by their relatively linear trajectories. Coordinated motion of multiple
motors and targeting of individual motors toward HeLa cells with micrometer-level
precision was demonstrated
Steering Acoustically Propelled Nanowire Motors toward Cells in a Biologically Compatible Environment Using Magnetic Fields
The
recent discovery of fuel-free propulsion of nanomotors using
acoustic energy has provided a new avenue for using nanomotors in
biocompatible media. Crucial to the application of nanomotors in biosensing
and biomedical applications is the ability to remotely control and
steer them toward targets of interest, such as specific cells and
tissues. We demonstrate <i>in vitro</i> magnetic steering
of acoustically powered nanorod motors in a biologically compatible
environment. Steering was accomplished by incorporating (40 ±
5) nm thick nickel stripes into the electrochemically grown nanowires.
An external magnetic field of 40–45 mT was used to orient the
motors, which were acoustically propelled along their long axes. In
the absence of a magnetic field, (300 ± 30) nm diameter, (4.3
± 0.2) μm long nanowires with (40 ± 5) nm thick magnetic
stripes exhibit the same self-acoustophoretic behavior, including
pattern formation into concentric nanowire circles, aligned spinning
chains, and autonomous axial motion, as their non-magnetic counterparts.
In a magnetic field, these wires and their paths are oriented as evidenced
by their relatively linear trajectories. Coordinated motion of multiple
motors and targeting of individual motors toward HeLa cells with micrometer-level
precision was demonstrated
Steering Acoustically Propelled Nanowire Motors toward Cells in a Biologically Compatible Environment Using Magnetic Fields
The
recent discovery of fuel-free propulsion of nanomotors using
acoustic energy has provided a new avenue for using nanomotors in
biocompatible media. Crucial to the application of nanomotors in biosensing
and biomedical applications is the ability to remotely control and
steer them toward targets of interest, such as specific cells and
tissues. We demonstrate <i>in vitro</i> magnetic steering
of acoustically powered nanorod motors in a biologically compatible
environment. Steering was accomplished by incorporating (40 ±
5) nm thick nickel stripes into the electrochemically grown nanowires.
An external magnetic field of 40–45 mT was used to orient the
motors, which were acoustically propelled along their long axes. In
the absence of a magnetic field, (300 ± 30) nm diameter, (4.3
± 0.2) μm long nanowires with (40 ± 5) nm thick magnetic
stripes exhibit the same self-acoustophoretic behavior, including
pattern formation into concentric nanowire circles, aligned spinning
chains, and autonomous axial motion, as their non-magnetic counterparts.
In a magnetic field, these wires and their paths are oriented as evidenced
by their relatively linear trajectories. Coordinated motion of multiple
motors and targeting of individual motors toward HeLa cells with micrometer-level
precision was demonstrated