FR2642265A1 - New electrophoretic device applicable to plants - Google Patents

Abstract

The aim of the present invention is to define the electric signals intended to cause an electrophoretic field over the plants in order to cause a migration of the active substances and in particular the metal oligo-elements in the plant. The invention specifies the electric signals applied and the equipment used. The latter comprises a potentiostat 1 of high impedance, to which a sinusoidal or pulse-shaped function generator 7 is connected, the output voltage of the potentiostat being a component of the polarisation signals applicable directly to the plants or their surrounding atmosphere. The invention is used in the phytotherapeutic or horticultural industry.

Description

 The present deposit relates to an electrophoretic device making it possible to apply an electric field to a chosen plant in order to cause in a certain part of the plant a migration of active substances subject or not to a phenomenon of photosynthesis. These substances, either trace elements or active substances from the medical or veterinary point of view, migrate either towards negative or positive polarity.

 We have already studied the application on the plant of an electrophoretic device made up of a potentiostat or any other source of direct or pulsed current making it possible to apply an electric polarization on a plant favoring the migration of ionized active substances according to their polarity electric.

 The present invention relates to the installation of the new electrophoretic device applicable to plants characterized by a potentiostat or galvanostat of high impedance generating the bias current on which an alternating or pre-impulsive depolarization signal from a capacitance and a self, the electrical signal obtained cathodically or anodically polarizes directly on the growing plant, the latter can be kept growing in a tank containing only the enriching electrolyte.

These characteristics will be better understood thanks to the attached figure.
There is shown in Figure 1, the electrical block diagram applicable to plants. In an elaborate version the polarization of the emerging leaves can be obtained by means of a polarized mist consisting of an electrolyte and ionized cathodic: or anodically by means of an electrode located slightly above the plant.

Referring to Figure 1, we find the plants chosen for their specific absorption. They can be devoid of soil, bare at the roots and plunged in a tank containing l: ectrolyte which one wants to provoke the absorption. These plants are subjected naturally or artificially to cyc: e -lcardien in order to cause the phenomenon of photosynthesis. at the level of the sheets (2) for example. The absorption of specific substances can be obtained at the level of the roots and in this case, the film covering the root acts as an ion exchange membrane,
The polarization is obtained with calves of the electrodes t and 5 and the resulting electrical signal consists of a continuous or pulse polarization current on which are superimposed brief electrical impulses of depolarization of the membranes. These electrical pre-pulses are generated by the generator (7) constituted for example by a se if coupled to a chemical capacity @@. The bias current generator (6 is of high impedance and its voltage is controlled by the voltmeter (9) and the current by the milliammeter (8). The bias currents vary according to the circuit impedance from a few volts to tens of volts.

 When the culture is applied in a controlled atmosphere, an electrolyte mist can be produced ensuring the electrical conduction between the two electrodes via the plant.

 We will ensure the phenomenon of photosynthesis on plants by exposing them to solar cycles or any other artificial light cycle.

 The use of metal ions as a vector of active substance for photosynthesis is easily adaptable.

Claims (1)

 RESELL: CATION 1  New electrophoretic device applicable to plants characterized by a potentiostat or a galvanostat generating a polar.sation current on which is superposed an alternating or pre-impulsive depolarization signal from a capacity and self urea, the overall electrical signal obtained cathodically polarized or anodically the growing plants, the latter being kept with their roots in a tank containing only the enriching electrolyte.  RFV-NDICATION 2  Electrophoretic device according to claim 1, characterized in that the electrical bias circuit of the plants is obtained by means of a high impedance potentiostat or galvanostat (6) controlled by a pulse generator (7) or ur. circuit consisting of salt and electrical capacity. CLAIM 3  Electrophoretic device according to the claim; ;, characterized in that the bias current applied to the plants (1) is obtained by removing them from the soil containing fertilizers, by planting them in a tank containing the electrolyte to be absorbed polarized by one electrode, the second electrode being formed by a contact at the level of the emerging leaves (2) or being formed by a continuous wire (5) placed on a selolytolytic mist maintained in a closed enclosure subjected to light.