Metallic Nanoparticles for Biomedical Applications
43
formaldehyde, cuboctahedral Pt NPs were formed in the initial stage [49]. Figure 6
shows the effect of glycine in the morphology of synthesized Pt nanocrystals. It is
found that as the number of glycine increases, the size of the particles increases.
Nanocrystals formed without glycine consists of various shapes, but the majority of
particles were in the form of nanowires, and they were assembled together. Mixed
morphologies (cubes, polyhedral, and icosahedra) of particles started forming when
the glycine amount is 30 mg. Concave nanocubes are present with 50 and 75 mg
of glycine, but the sizes are different. As the amount reaches 150 mg, the concavity
is easily visible, results in exposure to other different high index facets. Moreover,
an increase in glycine amount produce particles with concavity, but less in number.
The overall analysis shows that glycine and amine can control the size as well as
the morphology of Pt nanocrystals [42]. Small organic molecule can also be used
Fig. 6 Effect of the surface controller on the MNPs synthesis using the solvothermal method; TEM
images of Pt nanocrystals synthesized using glycine of a 0, b 30, c 50, and d 150 mg respectively.
Reprinted with permission from [42]. Copyright (2012) American Chemical Society
43
formaldehyde, cuboctahedral Pt NPs were formed in the initial stage [49]. Figure 6
shows the effect of glycine in the morphology of synthesized Pt nanocrystals. It is
found that as the number of glycine increases, the size of the particles increases.
Nanocrystals formed without glycine consists of various shapes, but the majority of
particles were in the form of nanowires, and they were assembled together. Mixed
morphologies (cubes, polyhedral, and icosahedra) of particles started forming when
the glycine amount is 30 mg. Concave nanocubes are present with 50 and 75 mg
of glycine, but the sizes are different. As the amount reaches 150 mg, the concavity
is easily visible, results in exposure to other different high index facets. Moreover,
an increase in glycine amount produce particles with concavity, but less in number.
The overall analysis shows that glycine and amine can control the size as well as
the morphology of Pt nanocrystals [42]. Small organic molecule can also be used
Fig. 6 Effect of the surface controller on the MNPs synthesis using the solvothermal method; TEM
images of Pt nanocrystals synthesized using glycine of a 0, b 30, c 50, and d 150 mg respectively.
Reprinted with permission from [42]. Copyright (2012) American Chemical Society