当前位置: X-MOL 学术Green Process. Synth. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
In vitro and in vivo applications of Euphorbia wallichii shoot extract-mediated gold nanospheres
Green Processing and Synthesis ( IF 4.3 ) Pub Date : 2021-01-01 , DOI: 10.1515/gps-2021-0013
Rehman Ullah 1 , Sumaira Shah 2 , Zahir Muhammad 1 , Sajjad Ali Shah 3 , Shah Faisal 3 , Umbreen Khattak 4 , Tauheed ul Haq 1 , Muhammad Taj Akbar 5
Affiliation  

The current study was designed to investigate the potential of Euphorbia wallichii shoot extract for reducting Au 3+ and stabilizing gold nanoparticles. UV-visible spectra of gold nanoparticles showed obvious surface plasmon resonance peak at 548 nm. Microscopy (SEM and TEM) showed spherical dimensions, and the energy dispersive X-ray spectra displayed the strongest optical absorption peak for gold (Au) at 2.1 keV. Dynamic light scattering spectra represent polydispersed mixture with particulate diameter of 2.5–103.2 nm. The IR spectra confirm the potential functional groups of shoot extract responsible for the reduction of Au 3+ to gold nanoparticles which exhibit tremendous antibacterial potential of 76.31%, 68.47%, 79.85%, 48.10%, and 65.53% against Escherichia coli , Staphylococcus aureus , Bacillus pumilus , Pseudomonas aeruginosa , and Klebsiella pneumoniae , respectively. Gold nanoparticles showed markedly elevated fungicidal potency compared to the shoot extract alone against the tested fungal strains. IC 50 for 2,2-diphenyl-1-picrylhydrazyl scavenging was 31.52, 18.29, and 15.32 µg/mL at 30, 60, and 90 min of reaction time, respectively. Both shoot extract and nanoparticles revealed 71% mortality at 100 µg/mL, with LD 90 values of 310.56 µg/mL. Experimental mice acquired dose-dependent analgesia of 54.21%, 82.60%, and 86.53% when treated with gold nanoparticles at 50, 100, and 200 mg/kg bw. Inhibition of gastrointestinal muscular contraction was 21.16%, 30.49%, and 40.19% in mice feed with 50, 100, and 200 mg/kg bw, respectively.

中文翻译:

大戟花茎提取物介导的金纳米球的体外和体内应用

当前的研究旨在研究大戟一枝提取物还原Au 3+和稳定金纳米颗粒的潜力。金纳米粒子的紫外-可见光谱在548 nm处显示出明显的表面等离子体共振峰。显微镜(SEM和TEM)显示球形,能量色散X射线光谱在2.1 keV处显示出最强的金(Au)吸收峰。动态光散射光谱表示粒径为2.5-103.2 nm的多分散混合物。红外光谱证实了芽提取物可能将Au 3+还原为金纳米颗粒的潜在功能基团,它们具有对大肠杆菌,金黄色葡萄球菌,短小芽孢杆菌,铜绿假单胞菌,和肺炎克雷伯菌。与单独的芽提取物相比,金纳米颗粒对测试的真菌菌株显示出显着提高的杀真菌效力。在30、60和90分钟的反应时间下,清除2,2-二苯基-1-吡啶并肼基的IC 50分别为31.52、18.29和15.32 µg / mL。芽提取物和纳米颗粒在100 µg / mL时均显示出71%的死亡率,LD 90值为310.56 µg / mL。当用金纳米颗粒分别以50、100和200 mg / kg bw处理时,实验小鼠获得了54.21%,82.60%和86.53%的剂量依赖性镇痛作用。在以50、100和200 mg / kg bw喂养的小鼠中,胃肠道肌肉收缩的抑制率分别为21.16%,30.49%和40.19%。与单独的芽提取物相比,金纳米颗粒对测试的真菌菌株显示出显着提高的杀真菌效力。在30、60和90分钟的反应时间下,清除2,2-二苯基-1-吡啶并肼基的IC 50分别为31.52、18.29和15.32 µg / mL。芽提取物和纳米颗粒在100 µg / mL时均显示出71%的死亡率,LD 90值为310.56 µg / mL。当用金纳米颗粒分别以50、100和200 mg / kg bw处理时,实验小鼠获得了54.21%,82.60%和86.53%的剂量依赖性镇痛作用。在以50、100和200 mg / kg bw喂养的小鼠中,胃肠道肌肉收缩的抑制率分别为21.16%,30.49%和40.19%。与单独的芽提取物相比,金纳米颗粒对测试的真菌菌株显示出显着提高的杀真菌效力。在30、60和90分钟的反应时间,清除2,2-二苯基-1-吡啶并肼基的IC 50分别为31.52、18.29和15.32 µg / mL。芽提取物和纳米颗粒在100 µg / mL时均显示出71%的死亡率,LD 90值为310.56 µg / mL。当用金纳米颗粒分别以50、100和200 mg / kg bw处理时,实验小鼠获得了54.21%,82.60%和86.53%的剂量依赖性镇痛作用。在以50、100和200 mg / kg bw喂养的小鼠中,胃肠道肌肉收缩的抑制率分别为21.16%,30.49%和40.19%。芽提取物和纳米颗粒在100 µg / mL时均显示出71%的死亡率,LD 90值为310.56 µg / mL。当用金纳米颗粒分别以50、100和200 mg / kg bw处理时,实验小鼠获得了54.21%,82.60%和86.53%的剂量依赖性镇痛作用。在以50、100和200 mg / kg bw喂养的小鼠中,胃肠道肌肉收缩的抑制率分别为21.16%,30.49%和40.19%。芽提取物和纳米颗粒在100 µg / mL时均显示出71%的死亡率,LD 90值为310.56 µg / mL。当用金纳米颗粒分别以50、100和200 mg / kg bw处理时,实验小鼠获得了54.21%,82.60%和86.53%的剂量依赖性镇痛作用。在以50、100和200 mg / kg bw喂养的小鼠中,胃肠道肌肉收缩的抑制率分别为21.16%,30.49%和40.19%。
更新日期:2021-01-01
down
wechat
bug