VEGLIA ALICIA VIVIANA
Capítulos de libros
Título:
Synthetic routes for the preparation of silver nanoparticles: a mechanistic perspective
Autor/es:
NATALIA L. PACIONI; CLAUDIO D. BORSARELLI; VALENTINA REY; ALICIA V. VEGLIA; ALARCON, EMILIO ISAAC ; GRIFFITH, MAY; UDEKWU, KLAS I.
Libro:
Silver Nanoparticle Applications, In the Fabrication and Design of Medical and Biosensing Devices
Editorial:
Springer
Referencias:
Año: 2015; p. 13 - 46
Resumen:
Silver nanoparticles (AgNP) are already part of our daily life, being present in
clothes (e.g. in socks); household and personal care products, mainly due to their
antimicrobial properties [1], see Chapters 5 and 6. Furthermore, as discussed in
the previous chapter, their unique physical/electronic properties have converted
them in excellent candidates for different applications e.g. Surface Enhanced Raman
Spectroscopy (SERS)[2-4]. AgNP?s optical properties depend on characteristics
such as size, shape and capping-coating.
Synthetic approaches for the preparation of AgNP continue to grow as evidenced
from the quasi-exponential increment in the number of articles published
in the last two decades (Figure 1).
Generally, the methods used for the preparation of metal nanoparticles can be
grouped into two different categories ?Top-down? or ?Bottom-up.? Breaking a
wall down up to get its minimum component ?the brick? represents the Top-down
approach, Figure 2. While building up ?the brick? from clay-bearing soil, sand,
lime and water would represent Bottom-up, Figure 2. Thus, in nanosciences Topdown
involves the use of bulk materials and reduce them into nanoparticles by
way of physical, chemical or mechanical processes whereas Bottom-up requires starting from molecules or atoms to obtain nanoparticles [5].
clothes (e.g. in socks); household and personal care products, mainly due to their
antimicrobial properties [1], see Chapters 5 and 6. Furthermore, as discussed in
the previous chapter, their unique physical/electronic properties have converted
them in excellent candidates for different applications e.g. Surface Enhanced Raman
Spectroscopy (SERS)[2-4]. AgNP?s optical properties depend on characteristics
such as size, shape and capping-coating.
Synthetic approaches for the preparation of AgNP continue to grow as evidenced
from the quasi-exponential increment in the number of articles published
in the last two decades (Figure 1).
Generally, the methods used for the preparation of metal nanoparticles can be
grouped into two different categories ?Top-down? or ?Bottom-up.? Breaking a
wall down up to get its minimum component ?the brick? represents the Top-down
approach, Figure 2. While building up ?the brick? from clay-bearing soil, sand,
lime and water would represent Bottom-up, Figure 2. Thus, in nanosciences Topdown
involves the use of bulk materials and reduce them into nanoparticles by
way of physical, chemical or mechanical processes whereas Bottom-up requires starting from molecules or atoms to obtain nanoparticles [5].
