In phytosynthesis of gold nanoparticles (AuNPs), biomolecules play a vital role in biocapping the surface of particles and generating the electrostatic repulsive forces to inhibit their growth kinetics. However, estimation of bioactive compounds influencing their surface characteristics through formation of electric repulsive forces (\(V_{elec}\)), Van der Waals attraction forces (\(V_{vdw}\)) and ultimately hindering their growth is still in the phase of obscurity. Current study, based on surface chemistry approach has been performed for identification of bioactive compounds in Elaeis guineensis leaves (EGL/OPL), acting as biocapping agents and directing the growth of AuNPs over a period of time. The quantitative estimation of interparticle interactions and modification in Ostwald ripening (MOR) model were also done to correlate the growth kinetic of AuNPs. The X-ray photoelectron spectroscopy (XPS) showed the major contribution of oxygen, carbon and nitrogen elements, corresponding to polyphenolic, carboxylic and amides, in biocapping the surface of AuNPs and directing their interparticle interactions associated with growth kinetics. The \(V_{elec}\) forces were reduced with an enhancement in the \(V_{vdw}\) forces, depicting their major role in impeding growth of AuNPs. The MOR model exhibited an excellent agreement of predicted growth with experimental size enlargements of AuNPs, having 4.8% average absolute relative percentage error.

在金纳米颗粒（AuNPs）的植物合成中，生物分子在生物包覆颗粒表面并产生静电排斥力以抑制其生长动力学方面起着至关重要的作用。但是，估计仍会通过形成电排斥力（\（V_ {elec} \）），范德华吸引力（\（V_ {vdw} \））并最终阻碍其生长来影响其表面特性的生物活性化合物。晦涩的阶段。基于表面化学方法的当前研究已经进行了鉴定，以鉴定吉利油菜中的生物活性化合物。叶片（EGL / OPL），充当生物封闭剂并指导AuNP在一段时间内的生长。还进行了奥斯特瓦尔德成熟（MOR）模型中颗粒间相互作用和修饰的定量估计，以关联AuNPs的生长动力学。X射线光电子能谱（XPS）显示，与多酚，羧酸和酰胺相对应的氧，碳和氮元素在生物包覆AuNPs的表面并指导它们与生长动力学相关的粒子间相互作用方面起了主要作用。的\（V_ {ELEC} \）的力与在增强物降低\（V_ {VDW} \）力量，描绘了它们在阻碍AuNP增长方面的主要作用。MOR模型显示出预测的增长与AuNPs的实验尺寸扩大的极佳一致性，平均绝对相对误差为4.8％。