Controlling Arsenic Accumulation in Rice Grain under Nanomaterials-Assisted Optimal Greenhouse Set-Up

Muhammad Nur Aiman Uda, Subash C. B. Gopinath (), Uda Hashim, Muhammad Nur Afnan Uda, Tijjani Adam, Nor Azizah Parmin, Sreeramanan Subramaniam, Suresh V. Chinni, Veeranjaneya Reddy Lebaka and Ramachawolran Gobinath ()
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Muhammad Nur Aiman Uda: Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar 01000, Malaysia
Subash C. B. Gopinath: Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar 01000, Malaysia
Uda Hashim: Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar 01000, Malaysia
Muhammad Nur Afnan Uda: Faculty of Engineering, Universiti Malaysia Sabah, Kota Kinabalu 88400, Malaysia
Tijjani Adam: Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar 01000, Malaysia
Nor Azizah Parmin: Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar 01000, Malaysia
Sreeramanan Subramaniam: Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis (UniMAP), Arau 02600, Malaysia
Suresh V. Chinni: Department of Biochemistry, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom 42610, Malaysia
Veeranjaneya Reddy Lebaka: Department of Microbiology, Yogi Vemana University, Kadapa 516005, India
Ramachawolran Gobinath: Department of Foundation, RCSI & UCD Malaysia Campus, Georgetown 10450, Malaysia

Sustainability, 2023, vol. 15, issue 3, 1-14

Abstract: Rice is being increasingly exposed to inorganic arsenic and this affects half of the world population because they are rice consumers. In this study, pot experiments were carried out to investigate the effect of two dose-dependent nanomaterials (silica and graphene) treatment on varied arsenic levels (2, 7 and 12 mg/kg). The results showed that both nanomaterials were affected significantly with 1 mg/mL of nanomaterial. Arsenic adversely affected the plant height, tillering, number of grains, and grain weight and when high concentrations of arsenic were applied at 12 mg/kg, the plant could not withstand it and died before 75 days even in the presence of graphene. Based on inductively coupled plasma mass spectrometry analysis, silica nanoparticles showed the highest inhibition on the total accumulation of arsenic as 93% (control plant), 84% (2 mg/kg), 67% (7 mg/kg) to 35 % (12 mg/kg), whereas graphene showed lower inhibition percentages. This outcome confirms that silica nanoparticles prevent arsenic uptake, because they translocate from the root to the grains and are able to offer a promising way to reduce consumer health risk.

Keywords: paddy plantation; rice straw; nanomaterial; metalloid (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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