Breakspear S, Smith J R
Scanning Probe Microscopy Laboratory, School of Pharmacy and Biomedical Sciences, University of Portsmouth, St Michael's Building, White Swan Road, PO1 2DT, UK.
J Microsc. 2004 Jul;215(Pt 1):34-9. doi: 10.1111/j.0022-2720.2004.01355.x.
We report the use of longitudinal (aspect ratio > 1 : 1) scanning atomic force microscopy as an aid in returning to the same area of hair fibres after bleaching, treatment with a commercial shampoo or the application of a 'leave-on' conditioner product. The bleaching treatment used in this study was not found to affect the cuticular architecture and lateral force microscopy (LFM) also showed little difference after treatment, reflecting the homogeneity of the newly revealed surfaces. After treatment with a commercial shampoo, the hair sample again showed very little difference in topography or lateral force characteristics. Hair treated with the leave-on conditioner product also showed no major topographical changes. LFM traces, however, showed regions between the ghost edge, marking the original position of the scale edge before cuticular erosion, and the existing scale edge, to have higher frictional properties than distal regions of the cuticle. A thin film of the leave-on product thus seems to form in this region and extends from the foot of the scale edge.
我们报告了使用纵向（长宽比>1:1）扫描原子力显微镜，以辅助在头发纤维漂白、使用商业洗发水处理或涂抹“免洗”护发素产品后返回同一区域。本研究中使用的漂白处理未发现影响表皮结构，横向力显微镜（LFM）在处理后也显示出微小差异，这反映了新暴露表面的均匀性。在用商业洗发水处理后，头发样本在形貌或横向力特征上再次显示出极小差异。用免洗护发素产品处理的头发也未显示出主要的形貌变化。然而，LFM轨迹显示，在标记表皮侵蚀前鳞片边缘原始位置的虚边与现有鳞片边缘之间的区域，比表皮远端区域具有更高的摩擦特性。因此，免洗产品的薄膜似乎在该区域形成，并从鳞片边缘底部延伸。
