PHD Discussions Logo

Ask, Learn and Accelerate in your PhD Research

Question Icon Post Your Answer

Question Icon

How can green chemistry be applied to nanosynthesis using plants and microbes?

My research involves developing sustainable nanofabrication routes. While the literature showcases many examples of plant-mediated synthesis, I seek practical insights on systematically selecting bio-agents, controlling morphology, and genuinely applying the 12 Principles of Green Chemistry to these processes beyond just using a "green" material.

All Answers (3 Answers In All)

By Adi Answered 3 years ago

This is a promising area that often gets labeled "green" simply by involving a plant. I've evaluated processes where the extraction used liters of organic solvent, negating the benefit. A true green chemistry approach starts with the solvent: use water. Then, look at the energy input; room-temperature reactions are ideal. Choose biomass that is abundant and non-food. Crucially, characterize the active phytochemicals responsible for reduction and capping this turns a "black box" process into a controllable, rational one. Finally, design for atom economy and consider the lifecycle of the nanomaterial itself. It's about the entire system, not just the first step.

 

Replied 3 years ago

By Avinash Kumar

Thank you Adi!

By Sanjay SIngla Answered 3 years ago

From my research experience, green nanosynthesis with plants and microbes works best when we focus on minimizing waste and maximizing efficiency. Microorganisms like bacteria and fungi can act as natural reducing and capping agents, eliminating the need for toxic chemical stabilizers.

The key is optimizing reaction conditions pH, temperature, and concentration to avoid excess reagents and byproducts. I’ve found that scaling thoughtfully is also crucial; a lab-scale green method isn’t automatically sustainable at industrial scale.

Replied 3 years ago

By Avinash Kumar

Thank you so much Sanjay.

By Ashish Prahakar Answered 3 years ago

In my view, applying green chemistry here means designing the process around renewable feedstocks and low-toxicity outputs. Plant extracts can provide natural antioxidants that reduce metal ions into nanoparticles without harsh chemicals.

However, we should carefully assess reproducibility and standardize extract preparation. Without consistency, it’s hard to control particle size and stability. Life cycle assessment (LCA) is also important to confirm that the overall environmental footprint is truly reduced.

Replied 3 years ago

By Avinash Kumar

Really helpful explanation, thank you Ashish!

Your Answer