论文标题
预测表面单层中对单个原子取代的人触摸敏感性
Predicting Human Touch Sensitivity to Single Atom Substitutions in Surface Monolayers
论文作者
论文摘要
作为手指产生的机械刺激会询问物体的物理和化学特征，这是细感的基础。当前研究或控制触摸的方法主要集中在物理特征上，但是可以利用细触摸的化学方面来创建更丰富的触觉接口并揭示触觉感知的基本方面。为了将触觉感知与分子结构联系起来，我们系统地沉积在不透彻的光滑表面上的硅烷衍生的单层，并通过摩擦和互相关分析对人类触觉灵敏度进行了预测。我们预测并证明了人类可以区分两个同质硅烷，这些硅烷仅由单个氮替代而有所不同。触觉对比的机理起源于单层排序的差异，该差异在两种烷基硅烷中复制，长度为三碳。这种方法可能可以推广到其他材料系统，并导致材料化学的新触觉感觉。
The mechanical stimuli generated as a finger interrogates the physical and chemical features of an object forms the basis of fine touch. Current approaches to study or control touch primarily focuses on physical features, but the chemical aspects of fine touch may be harnessed to create richer tactile interfaces and reveal fundamental aspects of tactile perception. To connect tactile perception with molecular structure, we systematically varied silane-derived monolayers deposited onto imperceptibly smooth surfaces and made predictions of human tactile sensitivity via friction and cross-correlation analysis. We predicted, and demonstrated, that humans can distinguish between two isosteric silanes which differ only by a single nitrogen-for-carbon substitution. The mechanism of tactile contrast originates from a difference in monolayer ordering which was replicated in two alkylsilanes with a three-carbon difference in length. This approach may be generalizable to other materials systems and lead to new tactile sensations derived from materials chemistry.
