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Electrospinning of high concentration gelatin solutions

T. BALAU MINDRU1, I. BALAU MINDRU1, T. MALUTAN2, V. TURA3,*

Affiliation

  1. Faculty of Textiles and Leather Engineering, Gh. Asachi Technical University, Str. Dimitrie Mangeron nr. 53, Corp TEX1, 700050, Iasi, Romania
  2. Faculty of Industrial Chemistry, Gh. Asachi Technical University, Str. Dimitrie Mangeron nr. 71, 700050, Iasi, Romania
  3. Faculty of Physics, Al. I. Cuza University, Blvd. Carol I, nr. 11A, 700506, Iasi, Romania

Abstract

Non-woven gelatin nanofiber membranes membranes were prepared by electrospinning of high concentration gelatin solutions. Electrospinnable solutions of 27-30% (w/v) gelatin concentration were prepared using various solvents. The solvent mixture consisting of formic acid, acetic acid and dimethylformamide in 4:0.5:0.5 volume ratio gave the best results, the gelatin solution remaining stable for more than 48 hours, as proved by viscosity measurements. The chemical and physical structure of the gelatin nanofiber membranes were investigated by scanning electron microscopy, infrared spectroscopy, differential scanning calorimetry and X-ray diffraction. The observed chemical and physical properties were compared to those of gelatin films prepared from the same solutions. The films showed structural differences depending on the solvent mixture used, while the characteristics of the electrospun membranes were almost similar..

Keywords

Electrospinning, Gelatin, Nanofibers.

Submitted at: May 4, 2007
Accepted at: Nov. 16, 2007

Citation

T. BALAU MINDRU, I. BALAU MINDRU, T. MALUTAN, V. TURA, Electrospinning of high concentration gelatin solutions, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 11, pp. 3633-3638 (2007)