The first article on nano-selenium was written by a Chinese scientist. After nano-selenium came out in 1997, it received a national patent after evaluation in 1998, and was put into production by Sitong Nano Port after the second evaluation in 1999 and have been gradually recognized and accepted by people. Once I went to Hong Kong to give a lecture, someone asked me for such a product, and he said Taiwan was also popularizing this project. This project is such a project that its application process is the fastest in the world, and also such a project that its invention can be best connected with market. It can be said this project should have been stressed and supported by the government.

The high-speed development of nano-technology has exceeded the people¡¯s expectations especially the progress of its applied technology. For example, up to 2010, the GDP of nano-technology in the United States will reach UD$1000 billion with o.8 million people to be trained in nano-technology. Besides, the progress of the nano-biology development will be shortened about 5 years from 20 years as estimated by the last president Clinton. At present, a great number of laboratories and risk investors in the United States are putting large amount of capital into the research and development of nano-technology, reflecting their mode of production in nano-assembly spaces. Among them, Guigu, with the support of government, has established the first production line in the world to fabricate ships. The chips, to be produced from the line, with a size of 100 nn, are so small that we can¡¯t see them by eyes, but their operation speed increases 1000 times. Besides, The United States has also made a great breakthrough in the fields of new materials and medicine.
At present, all countries are committed to the development of nano-technology, with the United States focusing on a full-scale development, Japan on the development of nano- robots, Germany on the development of environment and energy, Britain on the applications in the field of medicine and France on the establishment of a national nano-center. In short, the progress of nano-application has been quickened, and the nano-technology will become a focus of international competition in the future.
Objectively speaking, China started early in the development of nano-technology and in the basic research we have not been left behind the international level. However, in order to transfer the nano-technology into fortune and make contribution to the GDP in our country with the technology, we have to solve the following three problems: First, in our country, we are short of an applicable progression, a market target, a specific plan to enter the market and a field adequate to our own development of nano-technology; second, the nano-technology is an overlapping technology involving many subjects, and the scientists should be organized to enter market together. However, everyone does what he thinks; third, on the market in our country, there once appeared a trend of the concept of nano being speculated, confused or undervalued. In fact, we should realize that if the performance of nano-technology is not increased, it will worth nothing, and that the increase of nano-technology performance should not be separated from the connotation of the technology.
Are there any fields in which our nano-technology is in a leading position? Yes, there are. For example, nano-selenium is a leading product in the world, and in the research of selenium itself China is in a leading position, with the global standard of selenium concentrations in the diet having been established with the participation of China. Selenium is a substance that has a good future, and is effective in maintaining the balance of metabolism and preventing cancer from occurring, which can¡¯t be substituted by other elements. Lack of calcium will lead to osteoporosis, lack of calcium will lead to anaemia and lack of selenium will lead to enlargement of thyroid gland and the occurrence of many diseases. Of course, excessive supplement of trace elements has also side effects. In the past, people have over estimated the side effects of selenium. In fact, they are caused by excessive supplement.
To let people understand the functions of selenium, I think we should raise a higher demand on the quality of selenium, making the selenium much easy to be absorbed by and less side-effective to the human body after processed with integrated technique. Traditional medicine is very cautious in selenium supplement, because its beneficial contents are too near to its harmful contents. In hospitals, therefore, only when it is inevitable, is selenium supplemented to patients, such as cancer sufferers after radiation and chemical therapy. But as an exception, nano-selenium is featured by low toxicity and high efficacy, and can be used safely.
As predicted, the nano-products will enter the international market 5-10 years from now, and mainly in the fields of medical and environmental applications. In the aspect of nano-technology gaining access to the traditional products market, China Has huge potential and the key lies in how to plan and organize. It is just like a 10000m long-distance running game, in the first 500m China ranks the second or the third, but in the long run, china will be left far behind if we don¡¯t run fast. So now the key for us is to make an overall arrangement and put on the agenda the training of nano-talents.
The forth industrial tide is forthcoming with the nano-technology as its dominant factor. In the first four tides (the first is a steam engine age, in 1737; the second is a electrization, 1835-1914; the third is a micro- electronics age, from the establishment of the P.R. China to the present), China had been left behind. In this industrial tide, we should occupy a leading position.

Extracted from ¡°Medicine World¡±, P25, No. 10, 2004