چکیده
مقدمه
مطالب و روش ها
DPPH
مطالعات میکروبی
نتیجه و بحث
مطالعات میکروبی
نتیجه گیری
منابع
Abstract
Introduction
Materials and methods
DPPH
Microbial studies
Result and discussion
Microbial studies
Conclusion
Acknowledgements
References
چکیده
نانوتکنولوژی شامل بیوپلیمرها به طور جامع در کاربردهای زیست پزشکی، علوم برنامه ریزی و توسعه مواد غذایی مورد استفاده قرار می گیرد. کار حاضر سنتز، خصوصیات و کاربرد نانوذرات کاراگینان و اکسید روی (ZnONPs) مبتنی بر هیدروژل را توصیف میکند. هیدروژل های سنتز شده متعاقبا با استفاده از FTIR، XRD، SEM و TG-DTA مشخص شدند. خاصیت تورم، فعالیت آنتی اکسیدانی و اثربخشی لخته شدن خون کامل هیدروژل کاراگینان و هیدروژل کاراگینان آغشته به نانوذرات اکسید روی مورد ارزیابی قرار گرفت. هیدروژل های Carrageenan + ZnONPs (C/ZnONPs) فعالیت آنتی اکسیدانی و لخته شدن خون خوبی نسبت به هیدروژل کاراگینان خالص نشان دادند. علاوه بر این، هیدروژلهای C/ZnONPs پایدار، فعالیت ضد میکروبی خوبی را در برابر هر دو سویه باکتریهای گرم منفی و گرم مثبت از خود نشان میدهند. تجزیه و تحلیل بیوفیلم نشان داد که هیدروژل های C/ZnONPs دارای پتانسیل ضد بیوفیلم عالی در هر دو مهار و اختلال در بیوفیلم از پیش ساخته شده هستند. نتایج بهدستآمده نشان میدهد که هیدروژل مبتنی بر نانوذرات کاراگینان و اکسید روی کاربردهای بیولوژیکی امیدوارکنندهای دارد.
توجه! این متن ترجمه ماشینی بوده و توسط مترجمین ای ترجمه، ترجمه نشده است.
Abstract
Nanotechnology involving biopolymers is comprehensively used in biomedical applications, planning sciences, and food development. The present work describes the synthesis, characterization, and application of carrageenan and zinc oxide nanoparticles (ZnONPs) based hydrogel. The synthesized hydrogels were subsequently characterized using FTIR, XRD, SEM, and TG-DTA. The swelling property, antioxidant activity, and whole blood clotting effectiveness of the Carrageenan hydrogel, and Carrageenan Hydrogels Impregnated with Zinc Oxide Nanoparticles were evaluated. The Carrageenan + ZnONPs (C/ZnONPs) hydrogels showed good antioxidant, and blood clotting activity than the pure carrageenan hydrogel. In addition, the stable C/ZnONPs hydrogels exhibit good antimicrobial activities against both Gram-negative and Gram-positive bacterial strains. Biofilm analysis showed that C/ZnONPs hydrogels have excellent anti-biofilm potential in both inhibition and disruption of preformed biofilm. The obtained results suggested that the carrageenan and Zinc oxide nanoparticles based hydrogel have promising biological applications.
Introduction
Pathogenic microorganism resistance to frequently used antibiotic substances have become an important health concern in the 21st century. The development of microorganism resistance to antibiotics has significantly increased morbidity and mortality, longer hospitalization and increased health care costs.[1] Resistance is increasing against antibiotics, particularly to the first line, inexpensive, and broad-spectrum antibiotics, but also to the newly developed antibiotics; since the development of novel alternative is necessary.[2,3]
In the specific case of wound management there are several reports of the microorganism resistance to the drug used to manage wounds.[4] The role of microbial infections in the development of wound infections is well established, the life threatening nature of the wound infections has maximized its importance in human health. In addition, the cost of medication for wound management is also high.[5,6] Hence the exploration of new substance for the wound management is very important.
Conclusion
The synthesized C/ZnONPs hydrogels was produced by a simple and efficient method, performing proper swelling capacity and much better mechanical properties. It exhibited better antioxidant, blood clotting activity and also possess excellent antibacterial and biofilm efficacy against B. subtilis, S. aureus, E. coli and K. pneumonia. The present study confirmed that C/ZnONPs hydrogel have multi-potential property. Thus, the present study suggests that this bio-reduction practice is a well suitable system for large-scale production. The blood clotting and biofilm efficacy were tested in this study only at the grassroot stage which needs to be addressed further.