In-situ nanoscale molecular analyses by PiFM of mineral and organic phases in Pinctada margaritifera shell layers and reference chemicals

This dataset contains in-situ molecular analyses by Photo-induced Force Microscopy (PiFM) of organic and mineral phases in Pinctada margaritifera shell layers and reference materials (Sigma-Aldrich and MTI Corporation). PiFM infrared (IR) absorption spectra were acquired in heterodyne (sideband) mode with a spatial resolution of ~5 nm and spectral resolution of ~1 cm⁻¹. Data are presented as intensity-normalized point spectra averaged across multiple measurements, with associated first standard deviations (1s).本数据集包含采用光诱导力显微镜（Photo-induced Force Microscopy, PiFM）对黑蝶贝（Pinctada margaritifera）贝壳层的有机相、矿物相以及参考材料（Sigma-Aldrich与MTI Corporation）开展的原位分子分析结果。实验以约5 nm的空间分辨率与约1 cm⁻¹的光谱分辨率，在外差（边带）模式下采集了PiFM红外（IR）吸收光谱。数据以经多次测量平均后的强度归一化点光谱形式给出，并附带对应的一阶标准差（1s）。