According to statistics published on StatNano website, a number of about 137500 nanotechnology articles have been indexed in Web of Science (WoS) Database by the end of December 2016, which is 9.5% of all articles indexed in this database in 2016. China has a share of 34% while USA has a share of 16%.
China keeps the ascending trend in the publication of nanotechnology articles, to the extent that the number of Chinese nanotechnology articles is 2 and 1.2 times greater than that of the United States and European Union, respectively. India, South Korea, and Germany possess the third to fifth ranks. By having a growth rate of 0.8 % in the share of its nano-articles, Iran possesses the sixth rank higher than Japan. At the end of 2011, Japan possessed the fourth rank in the world in the publication of nanotechnology articles, but now it possesses the seventh rank due to the decrease in the number of its nanotechnology articles. In addition to Japan, other countries such as USA, South Korea, France, and Russia experienced a decrease in the share of nanotechnology articles in 2016 in comparison with the previous year.
Top 20 countries in publication of nanotechnology articles in 2016
|
Rank |
Country |
Nano-articles |
Share (%) |
|---|---|---|---|
|
1 |
47,455 |
34.51 |
|
|
2 |
22,337 |
16.25 |
|
|
3 |
11,066 |
8.05 |
|
|
4 |
8,386 |
6.1 |
|
|
5 |
7,963 |
5.79 |
|
|
6 |
7,583 |
5.52 |
|
|
7 |
6,952 |
5.06 |
|
|
8 |
5,313 |
3.86 |
|
|
9 |
5,038 |
3.66 |
|
|
10 |
4,178 |
3.04 |
|
|
11 |
4,124 |
3.0 |
|
|
12 |
3,901 |
2.84 |
|
|
13 |
3,406 |
2.48 |
|
|
14 |
3,018 |
2.19 |
|
|
15 |
2,831 |
2.06 |
|
|
16 |
2,489 |
1.81 |
|
|
17 |
2,471 |
1.8 |
|
|
18 |
2,300 |
1.67 |
|
|
19 |
2,170 |
1.58 |
|
|
20 |
2,056 |
1.5 |
Nine countries out of 20 are located in Asia and Oceania, and in general, more than half of nanotechnology publications belong to the countries in Asia and Oceania. Brazil is the only country from Latin America in the top 20 countries. Egypt is the top African country in this ranking by publishing 1423 nano-articles and possessing the 25th rank. By possessing the 35th rank, South Africa is the second African country.
Geographical distribution of nanotechnology publications in 2016
The following table shows the share of nanotechnology articles to total articles published by each country (Local Share) in 2016. Asian countries have the highest share in this indicator too, and almost all of them have a share of higher than the world average (9.5%). Iran and Saudi Arabia have the highest ratio of nano-articles to all articles, and they experienced huge growth in the publication of nano-articles by giving propriety to nanotechnology research. The United States, as the second top country in publication of nanotechnology articles, possesses a share of only 6 % in the ratio of nano-articles to all articles in 2016.
Share of nano-articles to all articles published by each country in 2016
(For top 20 countries with the most number of nano-articles)
|
Rank |
Country |
Share (%) |
|---|---|---|
|
1 |
22.91 |
|
|
2 |
18.11 |
|
|
3 |
17.72 |
|
|
4 |
17.13 |
|
|
5 |
16.83 |
|
|
6 |
15.71 |
|
|
7 |
12.48 |
|
|
8 |
11.99 |
|
|
9 |
9.56 |
|
|
10 |
9.07 |
|
|
11 |
8.09 |
|
|
12 |
7.94 |
|
|
13 |
7.64 |
|
|
14 |
7.06 |
|
|
15 |
6.45 |
|
|
16 |
6.13 |
|
|
17 |
5.84 |
|
|
18 |
5.8 |
|
|
19 |
5.2 |
|
|
20 |
4.87 |
Visit the full table here.