Flexible substrate/liquid electrolyte viscous composite material and preparation method therefor

A flexible substrate/liquid electrolyte viscous composite biomedical material for the treatment of myocardium infarction and heart failure, consisting of:

• a flexible substrate selected from the group consisting of and corn starch;
• and
• a liquid electrolyte is a solution containing one selected from the group consisting of zinc nitrate, lithium nitrate, calcium nitrate, magnesium nitrate, potassium nitrate, lithium chloride, calcium chloride, zinc chloride, magnesium chloride, calcium iodine, and a combination thereof,
• wherein the material's bonding strength with the surface of organ tissue is higher than 0.1 Kpa, and the ratio of loss modulus to storage modulus of said material is 0.2 to 5 when tested at 37° C., oscillation frequency at 0.01 to 100 Hz, strain at 0.01 to 10;
• at 37° C., the elastic tensile strength of said material is 3 to 100 kPa, and the elongation to fracture is more than 50%, the time for reaching the 10% stress relaxation rate is less than 10 min;
• at 37° C., the electric conductivity is between 0.01 and 10 S/m, the cytotoxicity level of material extract is 0 to 1;
• and
• wherein the flexible substrate/liquid electrolyte viscous composite biomedical material is adapted for the treatment of myocardium infarction and heart failure.