A method for targeted drug delivery. The method includes injecting a drug composition into a cancer patient's body including forming an ion of an anticancer agent of the drug composition in bloodstream of the cancer patient, placing an electrically conductive element in a region next to a tumor location inside the cancer patient's body, and delivering the drug composition to the tumor location. Delivering the drug composition to the tumor location includes electrostatically trapping the drug composition within the tumor location by applying an electrostatic field with an opposite sign of electric charge to a sign of electric charge of the ion of the anticancer agent to the electrically conductive element.

A method for targeted drug delivery. The method includes injecting a drug composition into a cancer patient's body including forming an ion of an anticancer agent of the drug composition in bloodstream of the cancer patient, placing an electrically conductive element in a region next to a tumor location inside the cancer patient's body, and delivering the drug composition to the tumor location. Delivering the drug composition to the tumor location includes electrostatically trapping the drug composition within the tumor location by applying an electrostatic field with an opposite sign of electric charge to a sign of electric charge of the ion of the anticancer agent to the electrically conductive element.

A system and method is provided for simulating a wellness promoting, DC variable electric field in an environment. A DC power source (DC input) and converter provide a DC output and generate an electric field in between positive and negative electrodes in an environment. An electric field detector measures and transmits information (data) about the strength of the actual electric field in the environment. A microprocessor receives the data and compares the information to the parameters of a wellness promoting electric field in order to direct the function of a pulse width modulator to modulate the DC output and thereby the DC variable electric field in real-time. The wellness of a subject in the environment of the DC variable electric field is enhanced by ensuring the positive electrode is proximal to a positive part of the subject and the negative electrode is proximal to a negative part of the subject.

A system and method is provided for simulating a wellness promoting, DC variable electric field in an environment. A DC power source (DC input) and converter provide a DC output and generate an electric field in between positive and negative electrodes in an environment. An electric field detector measures and transmits information (data) about the strength of the actual electric field in the environment. A microprocessor receives the data and compares the information to the parameters of a wellness promoting electric field in order to direct the function of a pulse width modulator to modulate the DC output and thereby the DC variable electric field in real-time. The wellness of a subject in the environment of the DC variable electric field is enhanced by ensuring the positive electrode is proximal to a positive part of the subject and the negative electrode is proximal to a negative part of the subject.

A system and methods are provided for simulating a fair weather electric field in an environment to promote the well-being of a subject. A converter provides a DC output to generate a DC electric field in between positive and negative electrodes in an environment, where the positive electrode is proximal to a positive part of a subject and the negative electrode is proximal to a negative part of the subject. An electric field detector measures and transmits data about the strength of the actual electric field in the environment. A microprocessor receives the data and compares the information to the parameters of a fair weather electric field to direct the function of a pulse width modulator, modulate the DC output and thereby simulate the fair weather electric field in real-time. Means are provided for filtering out over-voltages, pulses and over-currents to ensure the controlled modulation of the DC electric field.

A spaser device comprises a graphene resonator and a carbon nanotube (CNT) gain element coupled via exciton-plasmon interaction. The graphene resonator may be a rectangular or square graphene nanoflake (GNF), and the CNT gain element may be characterized by chirality vector (n,m) selected such that the CNT has semiconducting properties. The CNT gain element may be illuminated using a light source having a photon energy corresponding with a first exciton energy (E.sub.22) of the CNT, whereby excitons having a second exciton energy (E.sub.11) less than the first exciton energy are generated in the CNT, and coupled to a surface plasmon (SP) mode of the graphene resonator. When the rate of generation of excitons having the second exciton energy exceeds a gain threshold, continuous spasing is established within the spaser device.

A spaser device comprises a graphene resonator and a carbon nanotube (CNT) gain element coupled via exciton-plasmon interaction. The graphene resonator may be a rectangular or square graphene nanoflake (GNF), and the CNT gain element may be characterized by chirality vector (n,m) selected such that the CNT has semiconducting properties. The CNT gain element may be illuminated using a light source having a photon energy corresponding with a first exciton energy (E.sub.22) of the CNT, whereby excitons having a second exciton energy (E.sub.11) less than the first exciton energy are generated in the CNT, and coupled to a surface plasmon (SP) mode of the graphene resonator. When the rate of generation of excitons having the second exciton energy exceeds a gain threshold, continuous spasing is established within the spaser device.

An example of subject may deliver a therapy by delivering energy to tissue. The system may comprise a magnetic field system and an electric field system. The magnetic field system may be configured to provide a magnetic field in a first direction to the tissue. The magnetic field system may include at least one magnetic field source to produce the magnetic field. The magnetic field produced by the at least one magnetic field source may include a magnetic field produced by at least one of a permanent magnet, a temporary magnet or electric current flow through a conductor. The electric field system may be configured to provide an electric field in a second direction to the tissue. The electric field system may include at least one electric field source to provide the electric field and the second direction is non-parallel to the first direction.

An example of subject may deliver a therapy by delivering energy to tissue. The system may comprise a magnetic field system and an electric field system. The magnetic field system may be configured to provide a magnetic field in a first direction to the tissue. The magnetic field system may include at least one magnetic field source to produce the magnetic field. The magnetic field produced by the at least one magnetic field source may include a magnetic field produced by at least one of a permanent magnet, a temporary magnet or electric current flow through a conductor. The electric field system may be configured to provide an electric field in a second direction to the tissue. The electric field system may include at least one electric field source to provide the electric field and the second direction is non-parallel to the first direction.

An example of subject may deliver a therapy by delivering energy to tissue. The system may comprise a magnetic field system and an electric field system. The magnetic field system may be configured to provide a magnetic field in a first direction to the tissue. The magnetic field system may include at least one magnetic field source to produce the magnetic field. The magnetic field produced by the at least one magnetic field source may include a magnetic field produced by at least one of a permanent magnet, a temporary magnet or electric current flow through a conductor. The electric field system may be configured to provide an electric field in a second direction to the tissue. The electric field system may include at least one electric field source to provide the electric field and the second direction is non-parallel to the first direction.