COMPOSITIONS FOR AEROSOLIZATION OF HIGHLY CONDUCTIVE SOLUTIONS
Compositions for aerosolization of conductive solutions (preferably highly conductive solutions) by way of electrostatic or electrohydrodynamic spraying are provided. Methods for making and using these compositions and electrostatic and electrohydrodynamic aerosol generators containing these compositions are also provided.
1 . A highly conductive liquid composition capable of aerosolization using an EHD aerosol generating device, wherein said highly conductive liquid composition has a surface viscoelastic modulus of from about 0.5 mN/m to about 10 mN/m, a phase angle of from about 10 degrees to about 50 degrees, and a conductivity of from about 5.0 μSiemens/cm to about 1000 μSiemens/cm; wherein said composition comprises:
(i) an active agent;
(ii) a liquid carrier vehicle which is ethanol;
(iii) a material for adjusting surface rheological properties; and
(iv) optionally a formulation additive or mixtures thereof;
wherein said active agent is dissolved or suspended in said liquid carrier vehicle.
2 . The highly conductive liquid composition according to claim 1 wherein the surface viscoelastic modulus of said liquid composition ranges from about 2.0 mN/m to from about 7.5 mN/m.
3 . The highly conductive liquid composition according to claim 2 , wherein the surface viscoelastic modulus of said liquid composition is about 5.0 mN/m.
4 . The highly conductive liquid composition according claim 1 , wherein the phase angle of said liquid composition is about 25 degrees.
5 . The highly conductive liquid composition according to claim 6 , wherein the conductivity of said liquid composition ranges from about 10 μSiemens/cm to about 400 μSiemens/cm.
6 . The highly conductive liquid composition according to claim 5 , wherein the conductivity of said liquid composition ranges is about 12.5 μSiemens/cm.
7 . The highly conductive liquid composition according to claim 1 , wherein said liquid composition has a surface tension of from about 20 milliNewtons/meter to about 30 milliNewtons/meter.
8 . The highly conductive liquid composition according to any claim 1 , wherein said material for adjusting surface rheological properties comprises film forming agents, polyols, surfactants and polymers and mixtures thereof.
9 . The highly conductive liquid composition according to claim 8 , wherein said material for adjusting surface rheological properties is selected from the group consisting of polyvinylpyrrolidone, tyloxapol, an alkylpolyglucoside, polyethylene glycol, hydroxypropyl methylcellulose and hydroxy methylcellulose and mixtures thereof.
10 . The highly conductive liquid composition according to claim 1 , wherein said active agent is dissolved or suspended in said liquid carrier vehicle.
11 . The highly conductive liquid composition according to claim 1 , wherein said formation excipient is selected from the group consisting of an agent that increases physical stability of said liquid composition, an antioxidant, a chelating or complexing agent, an antimicrobial agent, an antifungal agent or a flavoring agent.
12 - 26 . (canceled)
27 . A highly conductive liquid composition for direct delivery of an active agent to a target surface wherein said highly conductive liquid composition is capable of aerosolization using an electrohydrodynamic aerosolization means, wherein said liquid composition has a surface viscoelastic modulus of from about 0.5 mN/m to about 10 mN/m, a phase angle of from about 10 degrees to about 50 degrees, and a conductivity of from about 12.5 μSiemens/cm to about 400 μSiemens/cm; wherein said composition comprises:
(i) an active agent;
(ii) a liquid carrier vehicle which is ethanol;
(iii) a material for adjusting surface rheological properties; and
(iv) a formulation additive or mixtures thereof;
wherein said active agent is dissolved or suspended in said liquid carrier vehicle.
28 . The highly conductive liquid composition according to claim 27 wherein said active agent is selected from the group comprising a pharmaceutical, a paint, an agricultural chemical, a cosmetic, or a flavoring material.
29 . The highly conductive liquid composition according to claim 28 , wherein said active agent is selected from the group comprising a paint, an insecticide, a fungicide, an herbicide, a liquid foundation, a liquid tanning material and a flavoring agent.
30 . The highly conductive liquid composition according to claim 28 , wherein said active agent is a pharmaceutical selected from the group comprising a small molecule drug; a vaccine; a nucleic acid; a gene therapy agent; an enzyme; a hormone; an antibody; a vitamin; a peptide; a polypeptide; an antibiotic; an antifungal; an anti-viral agent; an anti-cancer agent; and a pain management drug.
31 . The highly conductive liquid composition according to any of the preceding claims 27 - 30 claim 30 , wherein the surface viscoelastic modulus is from about 2.0 mN/m to about 7.5 mN/m, wherein the phase angle is from about 10 degrees to about 50 degrees, and wherein the conductivity is from about 5.0 μSiemens/cm to about 400 μSiemens/cm.
32 . The highly conductive liquid composition according to claim 31 , wherein the surface viscoelastic modulus is about 5.0 mN/m, wherein the phase angle is about 25 degrees, and wherein the conductivity is about 12.5 μSiemens/cm.
33 . The highly conductive liquid composition according to claim 32 , wherein the surface viscoelastic modulus is from about 2.0 mN/m to about 7.5 mN/m, wherein the phase angle is from about 10 degrees to about 50 degrees, and wherein the conductivity is from about 5.0 μSiemens/cm to about 400 μSiemens/cm.
34 . The highly conductive liquid composition claim 27 , wherein said liquid composition has a surface tension of from about 15.0 milliNewtons/meter to about 45.0 milliNewtons/meter and wherein said aerosol formed from said liquid composition has a particle size diameter of from about 1.0 μm to about 300.0 μm.
35 . The highly conductive liquid composition claim 34 , wherein said liquid composition has a surface tension of from about 20.0 milliNewtons/meter to about 35.0 milliNewtons/meter and wherein said aerosol formed from said liquid composition has a particle size diameter of from about 1.0 μm to about 50.0 μm.
36 . The highly conductive liquid composition according to claim 27 , wherein said material for adjusting surface rheological properties comprises a film forming agent, surfactant, polymer, cellulosic materials and mixtures thereof.
37 . The highly conductive liquid composition according to claim 36 , wherein said material for adjusting surface rheological properties is selected from the group consisting essentially of polyvinylpyrrolidone polymers, tyloxapol, an alkylpolyglucoside, polyethylene glycol, hydroxypropyl methylcellulose, hydroxy methylcellulose and mixtures thereof.
38 . The highly conductive liquid composition according to claim 37 , wherein said active agent is dissolved or suspended in said liquid carrier vehicle.
39 . The highly conductive liquid composition according to claim 38 , wherein said formation excipient is selected from the group consisting of an agent that increases physical stability of said liquid composition, an antioxidant, a chelating agent, an antimicrobial agent, an antifungal agent or a flavoring agent.
40 . (canceled)
41 . (canceled)
42 . The highly conductive liquid composition according to claim 27 , wherein the target surface is a surface of the lungs of the patient.
43 . The highly conductive liquid composition according to claim 27 , for treating, preventing or ameliorating a disease or condition selected from the group consisting of asthma, COPD, pain, wasting, osteoporosis, pulmonary hypertension, diabetes; smoking-dependence; immunosuppression; or infection.
44 . The aerosol formed when a highly conductive liquid composition is aerosolized according to claim 14 , wherein said aerosol has an aerosol particle diameter of from about 1.0 μm to about 5.0 μm.
45 . The aerosol formed when a highly conductive liquid composition is aerosolized according to claim 44 , wherein said aerosol has an aerosol particle diameter of from about 3.0.
46 . A method for delivering an active agent to the respiratory tract of a patient in need of treatment comprising the steps of:
(a) preparing a highly conductive liquid composition wherein said composition comprises:
(i) a pharmaceutically active agent;
(ii) a liquid carrier vehicle which is ethanol;
(iii) a material for adjusting surface rheological properties; and
(iv) optionally a formulation additive and mixtures thereof
(b) dissolving or suspending an effective amount of said pharmaceutically active agent in said liquid carrier vehicle to produce a solution or suspension;
(c) producing an aerosol of said solution or suspension using an electrohydrodynamic aerosolization means; and
(d) administering said aerosol to the pulmonary tract of said patient via inhalation of said aerosol;
wherein said highly conductive liquid composition has a surface viscoelastic modulus of from about 0.5 mN/m to about 10 mN/m; a phase angle of from about 10 degrees to about 50 degrees; and a conductivity of from about 5.0 μSiemens/cm to about 1000 μSiemens/cm; and wherein the particle size of said aerosol is from about 1.0 microns to about 30 microns in diameter.
47 . The method according to claim 44 wherein the particle size of said aerosol is from about 1.0 microns to about 3.0 microns in diameter.
48 . The method according to claim 45 , wherein the surface viscoelastic modulus is from about 2.0 mN/m to about 7.5 mN/m, wherein the phase angle is from about 10 degrees to about 50 degrees, and wherein the conductivity is from about 5.0 μSiemens/cm to about 400 μSiemens/cm.
49 . The method according to claim 46 , wherein the surface viscoelastic modulus is about 5.0 mN/m, wherein the phase angle is about 25 degrees, and wherein the conductivity is about 12.5 μSiemens/cm.
50 . The method according to claim 44 , wherein said material for adjusting surface rheological properties is selected from the group consisting essentially of polyvinylpyrrolidone polymers, tyloxapol, an alkylpolyglucoside, polyethylene glycol, hydroxypropyl methylcellulose, hydroxy methylcellulose and mixtures thereof.
51 . The method according to claim 44 , wherein said formation excipient is selected from the group consisting of an agent that increases physical stability of said liquid composition, an antioxidant, a chelating agent, an antimicrobial agent, an antifungal agent or a flavoring agent.
52 . The method according to claim 44 wherein said active agent is selected from the group consisting of active agents to treat asthma, COPD, pain, wasting, osteoporosis, pulmonary hypertension, diabetes, smoking-dependence; immunosuppression, cancer, infection and weight control.
53 . The method of claim 49 wherein the surface viscoelastic modulus is about 5.0 mN/m, wherein the phase angle is about 25 degrees, and wherein the conductivity is about 12.5 μSiemens/cm and wherein the particle size of said aerosol is from about 1.0 microns to about 3.0 microns in diameter.