40
S. S. Habtoor et al.
the production of nanoparticles (Prakash et al. 2013). The synthesis of nanoparticles
by microorganisms and plants is right away widely preferred as a green synthesis
eco-friendly and inexpensive approach to the synthesis of nanoparticles of accurate
forms and controlling temples (Gurunathan et al. 2009). Various bio-systems like
fungus (Gholami-Shabani et al. 2013), bacteria (Kumar and Mamidyala 2011), plant
extracts (Shankar et al. 2004), and yeast (Kowshik et al. 2002) have been applied in
nanoparticles synthesis.
3.4 Bio-nanotechnology
Scientists often rely on inspiration from nature for their research (Marrow 2000;
Cossins 2015). Large concentrations of nanoparticles have been detected by organic
processes (Haferburg and Kothe 2007). Several subsequent studies have shown that
many plant extracts containing biomolecules can produce inorganic nanoparticles
that accumulate on the surface of biomolecules. Therefore, there has been tremendous
development in area of nanoparticles synthesized by plants. It is clear that there
is increasing interest by scientists on inorganic particles reaction with bio-species
through the backlog of many studies on producing diverse of NPs by biochemistry.
The groups contain NPs such as silver, gold, and alloys (Sharma et al. 2016). Bionanotechnology is an emerging technology with great interest in the use of green
synthesis in material production (Kumar et al. 2016).
Bio-nanotechnology is known to be used as a building block and to take advantage
of bio-activity to develop modern nanotechnology (Ehud and Anna 2013). Biotechnology combines vital biological essentials to chemical and physical methods in
the synthesis of nanoparticles. It is as well the economical alternative to physical
and chemical processes in the formation of nanoparticles (Patil et al. 2012). The
use of chemical and physical methods to produce nanoparticles is very limited in
bio-applications, especially in the field of medicine. The use of biological systems
as an alternative to chemical and physical methods is appropriate and environmentally friendly. Thus, the use of safe, non-toxic, environmentally friendly alternative
methods to develop nanoparticles synthesis is of most importance for the expansion
of medical applications. Compared with biomolecules, chemicals are considered
expensive and are replaced by a green method that is more acceptable and energyconsuming than chemicals and environmentally friendly. The biological approach
supports more, as this process occurs at standard conditions of varying temperatures,
pH, and pressure, the nanoparticles resulting from this process are more catalytic
reactive and have a high surface area (Bhattacharya and Mukherjee 2008).
Synthesis of nanoparticles by a biological method is a isolate of bottom-up
approach, wherever the primary interaction in this process is reducing and capping
metal ions to complete nanoparticles synthesis (Nalawade et al. 2014). NPs are synthesized when biomolecules grabbing purpose ions of their medium then turnover
the ions to the atoms over functional groups present. The metal ions are reduced and
converted into neutral metals aggregated on the surface of the biological molecules
S. S. Habtoor et al.
the production of nanoparticles (Prakash et al. 2013). The synthesis of nanoparticles
by microorganisms and plants is right away widely preferred as a green synthesis
eco-friendly and inexpensive approach to the synthesis of nanoparticles of accurate
forms and controlling temples (Gurunathan et al. 2009). Various bio-systems like
fungus (Gholami-Shabani et al. 2013), bacteria (Kumar and Mamidyala 2011), plant
extracts (Shankar et al. 2004), and yeast (Kowshik et al. 2002) have been applied in
nanoparticles synthesis.
3.4 Bio-nanotechnology
Scientists often rely on inspiration from nature for their research (Marrow 2000;
Cossins 2015). Large concentrations of nanoparticles have been detected by organic
processes (Haferburg and Kothe 2007). Several subsequent studies have shown that
many plant extracts containing biomolecules can produce inorganic nanoparticles
that accumulate on the surface of biomolecules. Therefore, there has been tremendous
development in area of nanoparticles synthesized by plants. It is clear that there
is increasing interest by scientists on inorganic particles reaction with bio-species
through the backlog of many studies on producing diverse of NPs by biochemistry.
The groups contain NPs such as silver, gold, and alloys (Sharma et al. 2016). Bionanotechnology is an emerging technology with great interest in the use of green
synthesis in material production (Kumar et al. 2016).
Bio-nanotechnology is known to be used as a building block and to take advantage
of bio-activity to develop modern nanotechnology (Ehud and Anna 2013). Biotechnology combines vital biological essentials to chemical and physical methods in
the synthesis of nanoparticles. It is as well the economical alternative to physical
and chemical processes in the formation of nanoparticles (Patil et al. 2012). The
use of chemical and physical methods to produce nanoparticles is very limited in
bio-applications, especially in the field of medicine. The use of biological systems
as an alternative to chemical and physical methods is appropriate and environmentally friendly. Thus, the use of safe, non-toxic, environmentally friendly alternative
methods to develop nanoparticles synthesis is of most importance for the expansion
of medical applications. Compared with biomolecules, chemicals are considered
expensive and are replaced by a green method that is more acceptable and energyconsuming than chemicals and environmentally friendly. The biological approach
supports more, as this process occurs at standard conditions of varying temperatures,
pH, and pressure, the nanoparticles resulting from this process are more catalytic
reactive and have a high surface area (Bhattacharya and Mukherjee 2008).
Synthesis of nanoparticles by a biological method is a isolate of bottom-up
approach, wherever the primary interaction in this process is reducing and capping
metal ions to complete nanoparticles synthesis (Nalawade et al. 2014). NPs are synthesized when biomolecules grabbing purpose ions of their medium then turnover
the ions to the atoms over functional groups present. The metal ions are reduced and
converted into neutral metals aggregated on the surface of the biological molecules