The Potential of Silver Nanoparticles

Oct 13, 2025 by windailys.com 38 views

Silver Nanoparticle Antioxidant Activity Synthesized Using Cellulose Nanocrystal from Pineapple Leaf Waste (Ananas comosus (L.) Merr.)

Introduction

The Growing Demand for Sustainable and Eco-Friendly Materials

In recent years, there has been a significant shift towards the development of sustainable and eco-friendly materials. This trend is driven by the increasing awareness of the environmental impact of traditional materials and the need for innovative solutions that minimize waste and promote green technologies. One area that has gained significant attention is the use of plant waste as a source of valuable materials. In this context, pineapple leaf waste (Ananas comosus (L.) Merr.) has emerged as a promising feedstock for the production of cellulose nanocrystals, which can be used to synthesize silver nanoparticles with antioxidant activity.

The Potential of Silver Nanoparticles

Silver nanoparticles are particles that have nano sizes, ranging from 1 to 100 nm. These particles have been widely studied for their unique properties, which make them suitable for various applications, including medicine, electronics, and catalysis. One of the most promising applications of silver nanoparticles is their use as antioxidants. Antioxidants are molecules that can neutralize free radicals, which are unstable molecules that can cause oxidative stress and damage to cells. Silver nanoparticles have been shown to have antioxidant activity, making them a potential candidate for the development of health products.

Methodology

Cellulose Nanocrystal Isolation from Pineapple Leaf Waste

Pineapple leaves contain as many as 69.5-71.5% cellulose, which makes them a good source for cellulose nanocrystal isolation. The process of isolating cellulose nanocrystals from pineapple leaf waste involves several steps, including mechanical treatment, acid hydrolysis, and centrifugation. The resulting cellulose nanocrystals are then used as a bioreductor to synthesize silver nanoparticles.

Silver Nanoparticle Synthesis using the Green Method

The green method of synthesizing silver nanoparticles involves the use of a bioreductor, such as cellulose nanocrystals, to reduce silver ions to silver nanoparticles. This method is considered eco-friendly because it does not involve the use of toxic chemicals or high temperatures. The resulting silver nanoparticles are then characterized using various techniques, including UV-Vis spectrophotometry, FTIR spectroscopy, and scanning electron microscopy (SEM).

Results and Discussion

Characterization of Silver Nanoparticles

The characterization of silver nanoparticles using UV-Vis spectrophotometry shows a maximum wavelength at 412 nm. The FTIR spectrum of silver nanoparticles shows the presence of OH bonds, C-H alkan bonds, C = O bonds, and C-O bonds of glycosidic. The analysis of silver nanoparticles using PSA shows an average particle size of 55.15 Nm. The results of characterization using SEM indicate that some silver nanoparticles have a spherical shape, some are irregular, and there is agglomerate.

Antioxidant Activity of Silver Nanoparticles

The antioxidant activity of silver nanoparticles was evaluated using the DPPH free radical capture method. The results show that silver nanoparticles have antioxidant activity with an IC50 value of 148,3408 µg/ml, which is included in the medium category. This indicates that the synthesized silver nanoparticles have the potential as an antioxidant agent, which can be useful in the development of health products.

Conclusion

The Potential of Silver Nanoparticles as Antioxidants

This study has demonstrated the potential of silver nanoparticles synthesized using cellulose nanocrystals from pineapple leaf waste as antioxidants. The results show that silver nanoparticles have antioxidant activity, which makes them a promising candidate for the development of health products. This study provides an opportunity to utilize plant waste, as well as producing materials that have the potential for broad application in the health sector.

Future Directions

The Use of Plant Waste as a Source of Valuable Materials

This study highlights the potential of plant waste as a source of valuable materials. Further research is needed to explore the use of other plant waste materials as feedstocks for the production of cellulose nanocrystals and silver nanoparticles. Additionally, the development of new applications for silver nanoparticles, such as their use in cancer treatment, is an area that requires further investigation.

References

Khodadadi, A. A., et al. (2020). "Green synthesis of silver nanoparticles using natural resources and their applications: a review." Journal of Environmental Chemical Engineering.
Nadeem, M. et al. (2021). "Role of Silver Nanoparticles in the Treatment of Cancer: A Review." Journal of Drug Delivery Science and Technology.
Frequently Asked Questions (FAQs) about Silver Nanoparticle Antioxidant Activity Synthesized Using Cellulose Nanocrystal from Pineapple Leaf Waste (Ananas comosus (L.) Merr.)

Q: What is the purpose of this study?

A: The purpose of this study is to synthesize and evaluate the antioxidant activity of silver nanoparticles produced through cellulose nanocrystal hydrolysis from pineapple leaf waste.

Q: What is the significance of using pineapple leaf waste as a feedstock for cellulose nanocrystal isolation?

A: Pineapple leaf waste is a good source of cellulose, which makes it a suitable feedstock for cellulose nanocrystal isolation. This study demonstrates the potential of utilizing plant waste as a valuable resource for the production of cellulose nanocrystals and silver nanoparticles.

Q: What is the green method of synthesizing silver nanoparticles?

A: The green method of synthesizing silver nanoparticles involves the use of a bioreductor, such as cellulose nanocrystals, to reduce silver ions to silver nanoparticles. This method is considered eco-friendly because it does not involve the use of toxic chemicals or high temperatures.

Q: What is the antioxidant activity of silver nanoparticles?

A: The antioxidant activity of silver nanoparticles was evaluated using the DPPH free radical capture method. The results show that silver nanoparticles have antioxidant activity with an IC50 value of 148,3408 µg/ml, which is included in the medium category.

Q: What are the potential applications of silver nanoparticles as antioxidants?

A: Silver nanoparticles have the potential to be used as antioxidants in various applications, including the development of health products, such as dietary supplements and cosmetics.

Q: What are the advantages of using silver nanoparticles as antioxidants?

A: Silver nanoparticles have several advantages as antioxidants, including their high surface area, ability to penetrate cells, and ability to neutralize free radicals.

Q: What are the limitations of this study?

A: This study has several limitations, including the use of a single feedstock (pineapple leaf waste) and the need for further research to explore the use of other plant waste materials as feedstocks for the production of cellulose nanocrystals and silver nanoparticles.

Q: What are the future directions for this research?

A: Future directions for this research include the exploration of the use of other plant waste materials as feedstocks for the production of cellulose nanocrystals and silver nanoparticles, as well as the development of new applications for silver nanoparticles, such as their use in cancer treatment.

Q: What are the potential environmental benefits of using plant waste as a feedstock for cellulose nanocrystal isolation?

A: The use of plant waste as a feedstock for cellulose nanocrystal isolation has several potential environmental benefits, including the reduction of waste, the conservation of natural resources, and the promotion of sustainable agriculture practices.

Q: What are the potential economic benefits of using plant waste as a feedstock for cellulose nanocrystal isolation?

A: The use of plant waste as a feedstock for cellulose nanocrystal isolation has several potential economic benefits, including the creation of new industries and jobs, the increase in revenue from the sale of cellulose nanocrystals and silver nanoparticles, and the reduction of costs associated with waste disposal.

Q: What are the potential health benefits of using silver nanoparticles as antioxidants?

A: The use of silver nanoparticles as antioxidants has several potential health benefits, including the reduction of oxidative stress, the prevention of cell damage, and the promotion of overall health and well-being.

Q: What are the potential risks associated with the use of silver nanoparticles as antioxidants?

A: The use of silver nanoparticles as antioxidants has several potential risks, including the risk of toxicity, the risk of allergic reactions, and the risk of environmental contamination.

Q: What are the potential regulatory challenges associated with the use of silver nanoparticles as antioxidants?

A: The use of silver nanoparticles as antioxidants has several potential regulatory challenges, including the need for further research to understand the safety and efficacy of silver nanoparticles, the need for regulatory approval, and the need for labeling and packaging requirements.