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Preparation of Samples for Electron Microscopy

Preparation of Samples for Electron Microscopy

To be visualized by an electron microscope, either transmission or scanning, biological samples need to be fixed (stabilized) so the electron beam does not destroy them and dried thoroughly (desiccated/dehydrated) so the vacuum does not affect them. Fixation needs to be done as quickly as possible because the sample properties will start changing as soon as it is removed from its natural environment. For example, in a tissue sample, the oxygen levels begin decreasing, causing an altered...

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Related Experiment Video

Updated: May 9, 2026

Scalable Solution-processed Fabrication Strategy for High-performance, Flexible, Transparent Electrodes with Embedded Metal Mesh

Scalable Solution-processed Fabrication Strategy for High-performance, Flexible, Transparent Electrodes with Embedded Metal Mesh

Published on: June 23, 2017

Advanced Liquid Metal-Based Hydrogels for Flexible Electronics.

Weiwei Zhao¹, Le Yao¹, Jiacheng Shen¹

¹State Key Laboratory of Flexible Electronics (LoFE) and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.

ACS Applied Materials & Interfaces

|May 5, 2025

Summary

This summary is machine-generated.

Liquid metal (LM)-based hydrogels offer advanced properties for flexible electronics. This review details their synthesis, characteristics, and diverse applications in wearable technology and beyond.

Keywords:

Flexible electronics Functionalization Hydrogels Liquid metals Nanocomposite Potential applications Properties Synthesis methods

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Area of Science:

Materials Science
Polymer Science
Nanotechnology

Background:

Flexible electronics are rapidly advancing, driving demand for novel functional materials.
Liquid metals (LMs)-based hydrogels are emerging as key materials due to their conductivity, mechanical tunability, biocompatibility, and self-healing capabilities.

Purpose of the Study:

To comprehensively review recent advancements in LMs-based hydrogels for flexible electronics.
To systematically analyze synthesis methods, properties, and applications of these materials.

Main Methods:

Classification and summarization of innovative synthesis methods for LMs-based hydrogels.
Detailed explanation of synthesis mechanisms and the role of LMs in property modulation.
Categorization of applications including sensors, wireless communication, EMI shielding, soft robotics, and energy devices.

Main Results:

Innovative synthesis strategies include patterned LMs, LMs as conductive fillers, initiators, and cross-linkers.
LMs play multiple roles in tailoring hydrogel properties for specific applications.
LMs-based hydrogels demonstrate versatility across a wide range of flexible electronic applications.

Conclusions:

LMs-based hydrogels are highly promising for next-generation flexible electronics.
Further research into synthesis and application is warranted.
Addressing current challenges will unlock future potential in wearable devices, IoT, and healthcare.