1
|
Roque-Borda CA, Silva HRL, Crusca Junior E, Serafim JA, Meneguin AB, Chorilli M, Macedo WC, Teixeira SR, Guastalli EAL, Soares NM, Blair JMA, Pikramenou Z, Vicente EF. Alginate-based microparticles coated with HPMCP/AS cellulose-derivatives enable the Ctx(Ile 21)-Ha antimicrobial peptide application as a feed additive. Int J Biol Macromol 2021; 183:1236-1247. [PMID: 33965488 DOI: 10.1016/j.ijbiomac.2021.05.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 04/26/2021] [Accepted: 05/02/2021] [Indexed: 12/20/2022]
Abstract
Microencapsulation is a potential biotechnological tool, which can overcome antimicrobial peptides (AMP) instabilities and reduce toxic side effects. Thus, this study evaluates the antibacterial activities of the Ctx(Ile21)-Ha AMP against multidrug-resistant (MDR) and non-resistant bacteria and develop and characterize peptide-loaded microparticles coated with the enteric polymers hydroxypropylmethylcellulose acetate succinate (HPMCAS) and hydroxypropylmethylcellulose phthalate (HPMCP). Ctx(Ile21)-Ha was obtained by solid phase peptide synthesis (SPPS) method, purified and characterized by HPLC and Mass Spectrometry. The peptide exhibited potent antibiotic activities against Salmonella enteritidis, Salmonella typhimurium, Pseudomonas aeruginosa (MDR), Acinetobacter baumannii (MDR), and Staphylococcus aureus (MDR). Ctx(Ile21)-Ha microencapsulation was performed by ionic gelation with high efficiency, maintaining the physical-chemical stability. Ctx(Ile21)-Ha coated-microparticles were characterized by DSC, TGA, FTIR-Raman, XRD and SEM. Hemolytic activity assay demonstrated that hemolysis was decreased up to 95% compared to single molecule. In addition, in vitro release control profile simulating different portions of gastrointestinal tract was performed and showed the microcapsules' ability to protect the peptide and release it in the intestine, aiming pathogen's location, mainly by Salmonella sp. Therefore, use of microencapsulated Ctx(Ile21)-Ha can be allowed as an antimicrobial controller in monogastric animal production as an oral feed additive (antimicrobial controller), being a valuable option for molecules with low therapeutic indexes or high hemolytic rates.
Collapse
Affiliation(s)
- Cesar Augusto Roque-Borda
- São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal, São Paulo CEP 14884-900, Brazil
| | - Hanyeny Raiely Leite Silva
- São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal, São Paulo CEP 14884-900, Brazil
| | - Edson Crusca Junior
- São Paulo State University (Unesp), Institute of Chemistry, Araraquara, São Paulo CEP 14800-900, Brazil
| | - Jéssica Aparecida Serafim
- São Paulo State University (Unesp), School of Sciences and Engineering, Tupã, São Paulo CEP 17602-496, Brazil
| | - Andréia Bagliotti Meneguin
- São Paulo State University (Unesp), School of Pharmaceutical Sciences, Araraquara, São Paulo CEP 14801-902, Brazil
| | - Marlus Chorilli
- São Paulo State University (Unesp), School of Pharmaceutical Sciences, Araraquara, São Paulo CEP 14801-902, Brazil
| | - Wagner Costa Macedo
- São Paulo State University (Unesp), School of Technology and Sciences, Presidente Prudente, São Paulo CEP 19060-900, Brazil
| | - Silvio Rainho Teixeira
- São Paulo State University (Unesp), School of Technology and Sciences, Presidente Prudente, São Paulo CEP 19060-900, Brazil
| | | | - Nilce Maria Soares
- Poultry Health Specialized Laboratory, Biological Institute, Bastos, São Paulo CEP 17690000, Brazil
| | - Jessica M A Blair
- Institute of Microbiology and Infection, University of Birmingham, Birmingham B15 2TT, UK
| | - Zoe Pikramenou
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, UK
| | - Eduardo Festozo Vicente
- São Paulo State University (Unesp), School of Sciences and Engineering, Tupã, São Paulo CEP 17602-496, Brazil.
| |
Collapse
|
2
|
Fernandes JD, Pazin WM, Macedo WC, Ruiz GCM, Constantino CJL. Langmuir-Schaefer Perylene Derivative Films: Influence of the Molecular Chemical Structure on the Supramolecular Arrangement. Langmuir 2021; 37:3836-3848. [PMID: 33770439 DOI: 10.1021/acs.langmuir.0c03299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Since the optical and electrical properties of organic thin films devices depend on their supramolecular arrangement and the molecular chemical structure, the understanding of such characteristics is essential for the optimization of these devices. In this study, we determine the supramolecular arrangement of thin films produced using the Langmuir-Schaefer (LS) technique and explain how its supramolecular arrangement is affected by the molecular chemical structure using two perylene derivatives: bis-butylimide (BuPTCD) and bis-phenethylimide (PhPTCD). The optical absorption measurements reveal that both films grow homogeneously and indicate that the presence of H aggregates (forbidden emission) is higher for BuPTCD LS film than for PhPTCD LS film. Atomic force microscopic analysis shows that the PhPTCD LS film is rougher than the BuPTCD film. In addition, FTIR analyses indicate that both films have head-on molecular organization. XRD patterns reveal that both the BuPTCD LS film and the PhPTCD LS film are crystalline, but that crystallinity is more prevalent in the BuPTCD LS film. Thus, the results show that the difference presented in the chemical structures leads the films to have different supramolecular arrangements, with consequences for their optical properties.
Collapse
Affiliation(s)
- José Diego Fernandes
- School of Technology and Applied Sciences, São Paulo State University (UNESP), Presidente Prudente, 19060-900, São Paulo, Brazil
| | - Wallance Moreira Pazin
- School of Technology and Applied Sciences, São Paulo State University (UNESP), Presidente Prudente, 19060-900, São Paulo, Brazil
| | - Wagner Costa Macedo
- School of Technology and Applied Sciences, São Paulo State University (UNESP), Presidente Prudente, 19060-900, São Paulo, Brazil
| | - Gilia Cristine Marques Ruiz
- School of Technology and Applied Sciences, São Paulo State University (UNESP), Presidente Prudente, 19060-900, São Paulo, Brazil
| | - Carlos José Leopoldo Constantino
- School of Technology and Applied Sciences, São Paulo State University (UNESP), Presidente Prudente, 19060-900, São Paulo, Brazil
| |
Collapse
|