The new ophthalmic formulation for infection control by combining collagen/gelatin/alginate biomaterial with liposomal chloramphenicol

Biomed Phys Eng Express. 2020 Jun 12;6(4):045017. doi: 10.1088/2057-1976/ab97a2.

Abstract

Eye drops are a conventional method of drug delivery to the eye, accounting for 90% of currently accessible ophthalmic formulations. The major problem with eye drop treatments is rapid pre-corneal drug loss. Furthermore, the need for frequent administration of eye drops can profoundly affect the quality of life of ophthalmological patients. In the current study, we developed a liposomal nanoparticle encapsulated with chloramphenicol mixed with biodegradable materials against ophthalmological disease. We first established a protocol for chloramphenicol (CAP) loaded into liposomal nanoparticle (LipoCAP). We also established the collagen/gelatin/sodium alginate (CGA) as the component of biodegradable polymers and calibrated the novel drug-releasing formulation. Finally, we combined LipoCAP with CGA to generate an 8-h degradable ophthalmic chloramphenicol gel, CGA-LipoCAP-8. CGA-LipoCAP-8 reached the effective working concentration in 75 min and prolonged the drug-releasing time for at least 12 h. In addition, CGA-LipoCAP-8 could stably and continuously inhibit E. coli proliferation. The inhibiting phenomenon was more pronounced over time. Furthermore, there were no significant toxicities observed when CGA-LipoCAP-8 co-cultured with ocular epithelial cells. In conclusion, CGA-LipoCAP-8 achieved effective CAP dose concentrations in a short time and sustained CAP release for a prolonged period. Our results provide an innovative concept in relation to novel drug-release formulations, with safety and efficiency supporting use in future treatments for ophthalmological diseases.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Administration, Ophthalmic*
  • Alginates / chemistry*
  • Anti-Bacterial Agents / administration & dosage
  • Bacillus
  • Biocompatible Materials / chemistry*
  • Calibration
  • Chloramphenicol / administration & dosage*
  • Collagen / chemistry*
  • Cornea / drug effects
  • Culture Media
  • Drug Delivery Systems / methods
  • Epithelial Cells / drug effects
  • Escherichia coli / metabolism
  • Eye / drug effects*
  • Gelatin / chemistry*
  • Humans
  • Liposomes / chemistry*
  • Microbial Sensitivity Tests
  • Microscopy, Electron, Transmission
  • Ophthalmic Solutions
  • Polymers / chemistry
  • Reproducibility of Results

Substances

  • Alginates
  • Anti-Bacterial Agents
  • Biocompatible Materials
  • Culture Media
  • Liposomes
  • Ophthalmic Solutions
  • Polymers
  • Chloramphenicol
  • Gelatin
  • Collagen