1
|
Suner SS, Sahiner M, Umut E, Ayyala RS, Sahiner N. Physically Crosslinked Chondroitin Sulfate (CS)-Metal Ion (M: Fe(III), Gd(III), Zn(II), and Cu(II)) Particles for Versatile Applications and Their Biosafety. Pharmaceuticals (Basel) 2023; 16:ph16040483. [PMID: 37111240 PMCID: PMC10144968 DOI: 10.3390/ph16040483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/04/2023] [Accepted: 03/21/2023] [Indexed: 04/29/2023] Open
Abstract
Chondroitin sulfate (CS), a well-known glycosaminoglycan, was physically crosslinked with Fe(III), Gd(III), Zn(II), and Cu(II) ions to obtain CS-Fe(III), CS-Gd(III), CS-Zn(II), and CS-Cu(II) polymeric particles for multipurpose biological applications. The CS-metal ion-containing particles in the micrometer to a few hundred nanometer size range are injectable materials for intravenous administration. The CS-metal ion-containing particles are safe biomaterials for biological applications because of their perfect blood compatibility and no significant cytotoxicity on L929 fibroblast cells up to a 10 mg/mL concentration. Furthermore, CS-Zn(II) and CS-Cu(II) particles show excellent antibacterial susceptibility, with 2.5-5.0 mg/mL minimum inhibition concentration (MIC) values against Escherichia coli and Staphylococcus aureus. Moreover, the in vitro contrast enhancement abilities of aqueous CS-metal ion particle suspensions in magnetic resonance imaging (MRI) were determined by obtaining T1- and T2-weighted MR images using a 0.5 Tesla MRI scanner and by calculating the water proton relaxivities. Therefore, these CS-Fe(III), CS-Gd(III), CS-Zn(II), and CS-Cu(II) particles have significant potential as antibacterial additive materials and MRI contrast enhancement agents with less toxicity.
Collapse
Affiliation(s)
- Selin S Suner
- Department of Chemistry, Nanoscience and Technology Research and Application Center, Canakkale Onsekiz Mart University, Terzioglu Campus, 17100 Canakkale, Turkey
| | - Mehtap Sahiner
- Department of Bioengineering, Engineering Faculty, Canakkale Onsekiz Mart University, 17100 Canakkale, Turkey
| | - Evrim Umut
- Department of Medical Imaging Techniques, School of Healthcare, Dokuz Eylul University, 35330 Izmir, Turkey
- Bioİzmir-Izmir Health Technologies Development and Accelerator Research and Application Center, Dokuz Eylul University, 35330 Izmir, Turkey
| | - Ramesh S Ayyala
- Department of Ophthalmology, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs B. Downs Blv, MDC 21, Tampa, FL 33612, USA
| | - Nurettin Sahiner
- Department of Chemistry, Nanoscience and Technology Research and Application Center, Canakkale Onsekiz Mart University, Terzioglu Campus, 17100 Canakkale, Turkey
- Department of Ophthalmology, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs B. Downs Blv, MDC 21, Tampa, FL 33612, USA
- Department of Chemical and Biomolecular Engineering, University of South Florida, Tampa, FL 33620, USA
| |
Collapse
|
2
|
Suner SS, Sahiner M, Ayyala RS, Sahiner N. Degradable and Non-Degradable Chondroitin Sulfate Particles with the Controlled Antibiotic Release for Bacterial Infections. Pharmaceutics 2022; 14:pharmaceutics14081739. [PMID: 36015365 PMCID: PMC9415033 DOI: 10.3390/pharmaceutics14081739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 12/13/2022] Open
Abstract
Non-degradable, slightly degradable, and completely degradable micro/nanoparticles derived from chondroitin sulfate (CS) were synthesized through crosslinking reactions at 50%, 40%, and 20% mole ratios, respectively. The CS particles with a 20% crosslinking ratio show total degradation within 48 h, whereas 50% CS particles were highly stable for up to 240 h with only 7.0 ± 2.8% weight loss in physiological conditions (pH 7.4, 37 °C). Tobramycin and amikacin antibiotics were encapsulated into non-degradable CS particles with high loading at 250 g/mg for the treatment of corneal bacterial ulcers. The highest release capacity of 92 ± 2% was obtained for CS-Amikacin particles with sustainable and long-term release profiles. The antibacterial effects of CS particles loaded with 2.5 mg of antibiotic continued to render a prolonged release time of 240 h with 24 ± 2 mm inhibition zones against Pseudomonas aeruginosa. Furthermore, as a carrier, CS particles significantly improved the compatibility of the antibiotics even at high particle concentrations of 1000 g/mL with a minimum of 71 ± 7% fibroblast cell viability. In summary, the sustainable delivery of antibiotics and long-term treatment of bacterial keratitis were shown to be afforded by the design of tunable degradation ability of CS particles with improved biocompatibility for the encapsulated drugs.
Collapse
Affiliation(s)
- Selin S. Suner
- Department of Chemistry & Nanoscience and Technology Research and Application Center, Canakkale Onsekiz Mart University Terzioglu Campus, Canakkale 17100, Turkey
| | - Mehtap Sahiner
- Bioengineering Department, Engineering Faculty, Canakkale Onsekiz Mart University Terzioglu Campus, Canakkale 17100, Turkey
| | - Ramesh S. Ayyala
- Department of Ophthalmology, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Nurettin Sahiner
- Department of Chemistry & Nanoscience and Technology Research and Application Center, Canakkale Onsekiz Mart University Terzioglu Campus, Canakkale 17100, Turkey
- Department of Ophthalmology, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- Department of Chemical and Biomolecular Engineering, University of South Florida, Tampa, FL 33620, USA
- Correspondence: or
| |
Collapse
|