The existence of nanobubbles, especially bulk nanobubbles, remains a mystery mainly due to their stability and longevity, properties that are investigated by many research groups worldwide. At the same time, high efforts are given to develop new generation methods, and so far, their potential uses have spread to high-value applications. Some of them are relevant to drinking water and wastewater treatment, surface cleaning, biomedical, engineering, medical imaging but also in ‘nutritional’” applications such as fishery and agriculture. Although the bulk of nanobubbles generation methods are thorough and known well enough, a remarkable lag is still recorded concerning the detailed explanation of their formation, their special physicochemical properties, and the stability mechanisms. In this short review, a condensed description of the nanobubbles production methods, their major properties, and potential important applications are presented. Emphasis has been given to the results and findings during the research effort of the last four years.

纳米气泡，尤其是块状纳米气泡的存在，仍然是一个谜，主要是由于其稳定性和寿命长，这些特性已被全球许多研究小组进行了研究。同时，人们大力开发新一代方法，到目前为止，它们的潜在用途已扩展到高价值的应用程序中。它们中的一些与饮用水和废水处理，表面清洁，生物医学，工程学，医学成像有关，也与诸如渔业和农业等“营养”应用有关。尽管大多数纳米气泡的产生方法是彻底的并且众所周知，但是关于其形成，其特殊的理化性质和稳定性机理的详细解释仍然记录了明显的滞后。在这篇简短的评论中，简要介绍了纳米气泡的生产方法，其主要性能以及潜在的重要应用。在过去四年的研究工作中，重点放在了结果和发现上。