英文原版-预测表面单层中单原子替换对人类触觉敏感度.pdfVIP

英文文献学习素材 声明：素材来源于互联网公共免费领域，由上传者搜集、整理、编译，旨在帮助科 研领域人士扩展学习途径，丰富科研素材。 中文摘要 预测表面单层中单原子替换对人类触觉敏感度 随着手指探索物体的物理和化学特征而产生的机械刺激，构成了精 密触觉的基础。目前研究或控制触觉的方法主要关注物理特征，但精 密触觉的化学方面可以被利用来创造更丰富的触觉界面，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，我们系统地改 变了沉积在几乎无感的表面上的硅烷衍生单层，并通过摩擦和互相关 分析预测人类触觉敏感度。我们预测并证明，人类可以区分仅仅通过 氮代碳替换而不同的同位素硅烷。触觉对比的机制源于单层排列的差 异，这种差异在碳链长度相差三个碳原子的烷基硅烷中得到了复制。 这种方法可以推广到其他材料系统，并导致来自材料化学的新触觉感 受。 Predicting Human Touch Sensitivity to Single Atom Substitutions in Surface Monolayers 1 1 1 1,2 1,3 Abigail Nolin , Amanda Licht , Kelly Pierson , Laure V. Kayser , Charles Dhong * 1Department of Materials Science Engineering, University of Delaware, Newark, DE 19716, USA 2Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA 3Department of Biomedical Engineering, University of Delaware, Newark, DE 19716, USA *Author to whom correspondence should be addressed: Abstract 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 whic