Electron Microscopy Studies of Soft Nanomaterials

Area of Science:

• Materials Science
• Nanotechnology
• Microscopy

Background:

• Soft nanomaterials, including biological ones, present unique characterization challenges.
• Electron microscopy (EM) has evolved significantly, offering powerful tools for nanoscale analysis.

Purpose of the Study:

• To review recent advancements in applying electron microscopy to soft nanomaterials.
• To highlight how hardware and software developments enable deeper understanding of material properties.

Main Methods:

• Standard 2D imaging and analytical techniques.
• Advanced methods: electron tomography for 3D morphology, electron diffraction for local structure/strain, in situ EM for dynamics.
• Integration of machine learning in EM analysis.

Main Results:

• EM provides high spatial resolution (nanometer to atomic scale) for shape, size, phase, structure, and chemistry.
• New insights into formation, assembly, and functioning (energy conversion, phonon/photon modulation) of soft nanomaterials.
• Overcoming technical barriers in EM for soft material characterization.

Conclusions:

• Electron microscopy is crucial for characterizing soft nanomaterials at the nanoscale.
• Future opportunities lie in further developing and utilizing EM-based methods.
• This review aims to stimulate research and industrial applications of EM for soft nanomaterials.