부산대학교 도서관

Titilope John Jayeoye,1 Fredrick Nwude Eze,2,3 Oladipupo Odunayo Olatunde,4,5 Sudarshan Singh,6 Jian Zuo,7– 9 Opeyemi Joshua Olatunji10 1Department of Chemistry, Faculty of Physical Science, Alex-Ekwueme Federal University Ndufu-Alike, Abakalilki, Ebonyi State, Nigeria; 2Faculty of Pharmaceutical Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand; 3Drug Delivery System Excellence of Center, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand; 4Department of Food and Human Nutritional Sciences, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada; 5Richardson Centre for Functional Foods and Nutraceuticals, University of Manitoba, Winnipeg, MB, R3T 6C5, Canada; 6Food Technology and Innovation Research Center of Excellence, Institute of Research and Innovation, Walailak University, Nakhon Si Thammarat, 80160, Thailand; 7Department of Traditional Chinese Medicine, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241001, People’s Republic of China; 8Key Laboratory of Non-Coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, 241001, People’s Republic of China; 9Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241001, People’s Republic of China; 10Faculty of Thai Traditional Medicine, Prince of Songkla University, Hat Yai, 90110, ThailandCorrespondence: Opeyemi Joshua OlatunjiFaculty of Thai Traditional Medicine, Prince of Songkla University, Hat Yai, 90110, ThailandEmail opeyemi.j@psu.ac.thTitilope John JayeoyeDepartment of Chemistry, Faculty of Physical Science, Alex-Ekwueme Federal University, Ndufu-Alike (AE-FUNAI), P.M.B. 1010, Abakaliki, Ebonyi State, NigeriaEmail titilope12@gmail.comIntroduction: The use of environmentally benign resources for nanoparticles synthesis is consistently pushed to the front burner in a bid to ensure and enhance environmental protection and beneficiation. In this light, application of different plant parts for the reduction and stabilization of nanoparticles is gaining popularity.Materials and Methods: In this contribution, we have exploited Securidaca inappendiculata stem extract (SISE), as the reducing and stabilizing agent for room temperature synthesis of highly stable and dispersed AgNPs. The major bioactive compounds in SISE were profiled using an ultra-high-performance liquid chromatography-quadrupole-time-of-flight mass spectrometry (UHPLC-MS-QTOF-MS).Results and Discussion: SISE could reduce silver salts to its nanoparticles almost instantaneously with a maximum absorption spectrum at 423 nm, under the optimal conditions. The fabricated SISE AgNPs was extensively characterized using FTIR, TEM, SEM, XRD, EDS, Zeta analysis/DLS and TGA/DTG analysis. SISE AgNPs with average particles size between 10– 15 nm and a zeta potential value of − 19.5 ± 1.8 mV was obtained. It was investigated for in-vitro biological applications by carrying out, antimicrobial, antioxidant, hemolytic, cytotoxicity and antidiabetic assays. It was found that SISE AgNPs exhibited potent antimicrobial capacity against some food borne microbes, good antioxidant property, while also demonstrating high biocompatibility. Moreover, with a view to extending further the applications SISE AgNPs, it was tested as a colorimetric nanoprobe for Hg2+ detection in aqueous environment, where good linearity between 0.10 and 10.0 μM, with a detection limit of 26.5 nM, were obtained. The practicality of the probe was investigated by carrying out Hg2+ detection in water sample, with good accuracy and precision.Discussion: Overall, this work introduced a new stabilizer for biocompatible AgNPs with far-reaching applications.Keywords: silver nanoparticles, Securidaca inappendiculata, biological applications, mercury (II) ion, colorimetric probe