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Near-field thermal and spectroscopic microscopy Fundamental research into the thermal properties of materials on the nanoscale has led to a new generic scanning technique - Scanning Thermal probe Microscopy (SThM) - where thermal modes of imaging at the sub-micron scale are complemented with localised analysis. A cantilever with an ultra-miniature resistive element on its tip can act either as a temperature sensor or as a point-like heat source. This is used to locally provide and monitor thermal flux to the material surface as well as to record the surface topography. Individual regions of a solid sample are selected by means of surface or even sub-surface imaging to combine spatial discrimination and chemical fingerprinting using calorimetry, thermomechanometry, infrared spectroscopy, or pyrolysis mass spectrometry. Patented technology has led to the development of instruments including micro- and nano- thermal analysers and photothermal nano-infrared spectrometers. These have been used in a wide range of situations ranging from polymer technology to biomedical studies. Here, the samples to be characterized can be inhomogeneous, with structural detail at the sub-micrometer level. The researcher often faces the task of chemically mapping the individual components or detecting subtle spatial variations in their molecular composition.
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Bruna F. Brun,Marcia H. C. Nascimento, Pedro A. C. Dias,Wena D. Marcarini,Maneesh N. Singh,Paulo R. Filgueiras,Paula F. Vassallo, Wanderson Roma,Jose G. Mill,Francis L. Martin,Valerio G. Barauna
TALANTA (2024): 125482
Shu‐Zhen Liu,You‐Hong Luo,Camilo L. M. Morais, Xiao‐Jun Ma, Li‐Jun Yang,De‐Chan Tan,Jin‐Bo Li, Bao‐Yi Liao, Yuan‐Feng Wei,Francis L. Martin,Wei‐Yi Pang
Journal of hazardous materials (2021): 126892-126892
João Octávio Sales Passos,Marcelo Victor dos Santos Alves,Camilo L. M. Morais,Francis L. Martin,Antônio Felipe Cavalcante,Telma Maria Araújo Moura Lemos, Shayanne Moura,Daniel L. D. Freitas, João Vitor Medeiros Mariz, Jean Lucas Carvalho,Kássio M. G. Lima,Rodrigo Pegado
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