Table 22.

Topics of SCI Papers (India), 1976–2007

Rank	Region Label	# of papers in the region
1	Atomic force microscopy	301
2	Transmission electron microscopy	270
3	Particle sizes	227
4	Room temperature	223
5	Scanning electron microscopy	186
6	Carbon nanotubes	132
7	Magnetic properties	123
8	Optical properties	115
9	Gold nanoparticles	113
10	Average particle sizes	107
11	Glass substrates	97
12	Temperature ranges	94
13	Grain sizes	88
14	Molecular modeling	84
15	Crystallite sizes	83
16	Aqueous solutions	83
17	Silver nanoparticles	81
18	Different temperatures	79
19	Quantum dots	76
20	Mechanical properties	71
21	Sol–Gel methods	66
22	Electron microscopy	62
23	Electrical properties	60
24	Mu M	59
25	Sol–gel techniques	59
26	Mechanical alloying	53
27	Experimental results	49
28	High temperatures	47
29	Aqueous medium	44
30	Quantum effects	36
31	Binding energies	31