解放松动态,并通过离子替代和聚合物捕获来增强双活性离子液体 - - 益布洛芬的玻璃形成能力
K P Safna Hussan1, M Sahra2, S Lekshmi3
1Micro/Nano Technology Center, Tokai University, Hiratsukashi, Kanagawa 259-1292, Japan; Amala Cancer, Research Center, Thrissur, Kerala 680 555, India; Ayurgreen Scientifica Research Institute, Edapal, Malappuram 679 582, Kerala, India.
概括
这项研究通过用布洛芬离子替代化物,合成了一种新型的益子离子液体PrHIb. PrHIb表现出增强的抗微生物和抗炎性质,改善玻璃形成能力,并限制了制药应用的分子流动性.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 制药科学 制药科学
背景情况:
- 像Procaine HCl (PrHCl) 这样的蛋白离子液体 (PIL) 显示出复杂的放松动态,但玻璃形成能力有限.
- 在PrHCl中的离子和中性物种之间的相互作用有助于其放松行为.
- 提高热稳定性和玻璃成形性质对于制药应用中的PILs至关重要.
研究的目的:
- 通过使用布洛芬离子合成和表征一种新型的益子离子液体PrHIb.
- 研究PrHIb.的放松动态,玻璃形成能力和双重治疗潜力.
- 探索聚合物限制对PrHIb特性的影响.
主要方法:
- 使用密度函数理论 (DFT),FTIR和FT-RS.验证PrHIb的合成.
- 评估了抗菌和抗炎活性.
- 热和分子动力学通过差分扫描热量计 (DSC) 和宽带介电光谱 (BDS) 来研究.
主要成果:
- DFT证实了具有特定热力学参数 (∆H, ∆G, ∆S) 的PrHIb形成.
- FTIR和FT-RS验证了功能组的成功整合.
- PrHIb对大肠杆菌 (62%) 和 Pseudomonas (80%) 的抗菌疗效提高,并保持了95%的抗炎活性.
- DSC和BDS显示了玻璃形成行为 (Tg = 266 K) 与解放松和缺乏二次放松.
- 在聚乙烯罗利 (PVP) 中封闭,降低了脆弱性 (m=36) 和提高了稳定性 (Tg ≈ 269 K).
结论:
- 在PrHIb中用ibuprofen离子替换化物限制了分子运动,导致脱放松和增强动态异质性.
- 在PVP中的聚合物限制进一步稳定了PrHIb,减少了脆弱性并提高了玻璃成型能力.
- PrHIb的双重抗微生物和抗炎活性,加上其改善的物理特性,突出了其作为多功能药物离子液体的潜力.
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