典型文献
Influence of two polyphenols on the structure and lubrication of salivary pellicle: An in vitro study on astringency mechanism
文献摘要：
This study investigated the influence of two polyphenols on the structure and lubrication of the salivary pellicle, aiming to extend the understanding of astringency mechanisms. The salivary pellicle was prepared by the adsorption of human whole saliva on the enamel substrate. Low-astringency catechin and high-astringency tannic acid were used as astringents. The changes induced by the two polyphenols in the structure and lubrication of the salivary pellicle were examined using quartz crystal microbalance with dissipation (QCM-D) and nano- indentation/scratch technique. The salivary pellicle suffers from changes in structure and physical properties owing to protein dehydration and protein-polyphenol complexation when encountering polyphenolic molecules, causing increases in the roughness and contact angle but a decrease in the load-bearing capacity. Therefore, the lubrication performance of the salivary pellicle is impaired, leading to an increase and fluctuation of the friction coefficient. The intensity of astringency has a strong positive correlation with the water contact angle, surface roughness, and friction coefficient of the salivary pellicle. In summary, astringency is a tactile perception driven by the roughness and wettability of the salivary pellicle rather than oral lubrication, and increased intraoral friction is an inevitable consequence of astringency. The findings of this study will help promote and assist the objective evaluation of astringency.
文献关键词：
中图分类号：
作者姓名：
Lei LEI;Yue TANG;Jing ZHENG;Genlei MA;Zhongrong ZHOU
作者机构：
Tribology Research Institute,Key Laboratory of Advanced Technologies of Materials,Ministry of Education,Southwest Jiaotong University,Chengdu 610031,China
文献出处：
引用格式：
[1]Lei LEI;Yue TANG;Jing ZHENG;Genlei MA;Zhongrong ZHOU-.Influence of two polyphenols on the structure and lubrication of salivary pellicle: An in vitro study on astringency mechanism)[J].摩擦（英文）,2022(01):167-178
A类：
pellicle,astringency,astringents
B类：
Influence,two,polyphenols,structure,lubrication,salivary,An,vitro,study,This,investigated,influence,aiming,extend,understanding,mechanisms,was,prepared,by,adsorption,human,whole,enamel,substrate,Low,catechin,high,tannic,acid,were,used,changes,induced,examined,quartz,crystal,microbalance,dissipation,QCM,nano,indentation,scratch,technique,suffers,from,physical,properties,owing,protein,dehydration,complexation,when,encountering,polyphenolic,molecules,causing,increases,roughness,contact,angle,but,decrease,load,bearing,capacity,Therefore,performance,impaired,leading,fluctuation,friction,coefficient,intensity,has,strong,positive,correlation,water,surface,summary,tactile,perception,driven,wettability,rather,than,increased,intraoral,inevitable,consequence,findings,this,will,help,promote,assist,objective,evaluation
AB值：
0.475577
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
