Biogenic Silver Nanoparticles (AgNPs) from Marphysa moribidii Extract: Optimization of Synthesis Parameters
Interest in biogenic silver nanoparticles (AgNPs) is steadily increasing due to the cost-effective, easy, and environmentally friendly way in which they are synthesized. Synthesis using polychaete (Marphysa moribidii) extract as a reducing agent is particularly new and has the potential of being...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universitas Indonesia
2021-07-01
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| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | https://ijtech.eng.ui.ac.id/article/view/4303 |
| Summary: | Interest in biogenic silver nanoparticles
(AgNPs) is steadily increasing due to the cost-effective, easy, and
environmentally friendly way in which they are synthesized. Synthesis using
polychaete (Marphysa moribidii)
extract as a reducing agent is particularly new and has the potential of being
applied in various industries. However, biogenic AgNPs require synthesis
optimization to increase their stability, yield, and characteristics. To meet
these requirements, several synthesis parameters (such as polychaete size (body
width), silver nitrate (AgNO3) concentration, pH of polychaete crude
extract, and the temperature during pre-incubation) and storage conditions were
optimized in this study. The optimized conditions for obtaining high yield and
stable AgNPs were polychaetes with a body width of 6–8 mm, 1 mM AgNO3
with polychaete crude extract of pH 9, preheated at 90°C for 15 min before
incubation at 30°C (150 rpm) for 24 hours, and stored at 4°C for long-term
stability. The formation of AgNPs was confirmed through observation of a color
transition (from pinkish to yellowish-brown) and analysis of UV-Vis spectra
(between 398 and 400 nm). Scanning electron microscopy and transmission
electron microscopy revealed the formation of spherical AgNPs with an average
size of approximately 40.19 nm. Further, the optimized AgNPs demonstrated high
storage stability for up to 6 months without any agglomeration. It is believed
that these parameters are eminently suitable for the production of stable
biosynthesized AgNPs. |
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| ISSN: | 2086-9614 2087-2100 |