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Updated: Sep 26, 2025

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High Throughput Microinjections of Sea Urchin Zygotes
Published on: January 21, 2014
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Progress in Preparation of Sea Urchin-like Micro-/Nanoparticles
Ruijing Ma1,2, Liqin Xiang1,3, Xiaopeng Zhao1
1Smart Materials Laboratory, Department of Applied Physics, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710129, China.
Materials (Basel, Switzerland)
|April 23, 2022
Summary
This review details the synthesis and applications of 3D urchin-like nanostructures. These structures offer enhanced photocatalytic and electrochemical performance due to their high surface area and unique morphology.
Area of Science:
- Materials Science
- Nanotechnology
- Chemical Engineering
Background:
- Urchin-like micro/nanoparticles, assembled from radial nanorods, exhibit desirable properties like high specific surface area and improved interfacial interactions.
- Their unique morphology facilitates efficient charge carrier diffusion and light absorption, crucial for enhanced performance in various applications.
- The controllable synthesis of these 3D nanostructures with defined size, shape, and hierarchy is a key area of research.
Purpose of the Study:
- To provide a comprehensive overview of the synthesis, mechanisms, and applications of urchin-like micro/nanoparticles.
- To summarize diverse synthesis methods, including hydrothermal/solvothermal approaches for solid structures and step-by-step/synchronous methods for hollow spheres.
- To review the functionalization strategies, such as coating and doping, for creating composite urchin-like nanostructures.
Main Methods:
- Detailed review of synthesis techniques for solid urchin-like micro-/nanoparticles, focusing on hydrothermal/solvothermal methods.
- Exploration of preparation methods for composite structures via coating and doping.
- Discussion of step-by-step and synchronous methods for synthesizing urchin-like hollow microspheres, including their formation mechanisms.
Main Results:
- The review categorizes synthesis methods for both solid and hollow urchin-like nanostructures.
- It elucidates the formation mechanisms and interfacial properties influenced by interlacing nano-branches.
- The enhanced light absorption and charge carrier dynamics due to the unique microstructure are highlighted.
Conclusions:
- Urchin-like nanostructures offer significant advantages in photocatalysis, electrochemistry, electromagnetic wave absorption, electrorheology, and gas sensing.
- The review consolidates knowledge on their synthesis and functionalization, paving the way for tailored material design.
- Further research into controllable synthesis and diverse applications of these versatile nanostructures is warranted.

