Plant-based amyloids from food waste for removal of heavy metals from contaminated water
Water pollution is one of the major global threats brought about by industrial, agricultural, and any other anthropogenic activity. Heavy metals represent a large group of water pollutants that can accumulate in the human body, causing cancer and mutagenic diseases. Technologies currently used to tr...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/162784 |
| _version_ | 1824454218893754368 |
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| author | Soon, Wei Long Peydayesh, Mohammad Mezzenga, Raffaele Miserez, Ali |
| author2 | School of Biological Sciences |
| author_facet | School of Biological Sciences Soon, Wei Long Peydayesh, Mohammad Mezzenga, Raffaele Miserez, Ali |
| author_sort | Soon, Wei Long |
| collection | NTU |
| description | Water pollution is one of the major global threats brought about by industrial, agricultural, and any other anthropogenic activity. Heavy metals represent a large group of water pollutants that can accumulate in the human body, causing cancer and mutagenic diseases. Technologies currently used to treat polluted wastewaters of heavy metals employ chemical, ion-exchange, and membrane purification methods. However, these techniques are energy-intensive due to high pressure and power requirements for membrane-based technologies, or highly selective, as in ion-exchange resins, making drinking water less affordable in developing countries. In this study, plant amyloid-carbon membranes consisting of sunflower and peanut amyloid fibrils were fabricated through a green and sustainable process and were used to remove toxic heavy metal pollutants to drinkable standards with negligible energy consumption. Protein-rich sunflower and peanut meals serve as low-cost raw materials, from which proteins were extracted, isolated, and self-assembled into functional amyloid fibrils for heavy metal removal. These amyloid fibrils were incorporated into hybrid carbon/amyloid membranes and used to filer Pt-, Cr-, and Pb-containing water to produce water of drinkable standards containing < 10 ppb heavy metals. This process can easily be upscaled due to its simplicity and minimal use of chemical reagents, pointing towards the future of low-cost yet efficient water treatment technologies. |
| first_indexed | 2025-02-19T03:18:50Z |
| format | Journal Article |
| id | ntu-10356/162784 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:18:50Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1627842023-02-28T17:13:18Z Plant-based amyloids from food waste for removal of heavy metals from contaminated water Soon, Wei Long Peydayesh, Mohammad Mezzenga, Raffaele Miserez, Ali School of Biological Sciences School of Materials Science and Engineering Center for Sustainable Materials (SusMat) Science::Biological sciences Engineering::Materials Waste Management Recycling Water pollution is one of the major global threats brought about by industrial, agricultural, and any other anthropogenic activity. Heavy metals represent a large group of water pollutants that can accumulate in the human body, causing cancer and mutagenic diseases. Technologies currently used to treat polluted wastewaters of heavy metals employ chemical, ion-exchange, and membrane purification methods. However, these techniques are energy-intensive due to high pressure and power requirements for membrane-based technologies, or highly selective, as in ion-exchange resins, making drinking water less affordable in developing countries. In this study, plant amyloid-carbon membranes consisting of sunflower and peanut amyloid fibrils were fabricated through a green and sustainable process and were used to remove toxic heavy metal pollutants to drinkable standards with negligible energy consumption. Protein-rich sunflower and peanut meals serve as low-cost raw materials, from which proteins were extracted, isolated, and self-assembled into functional amyloid fibrils for heavy metal removal. These amyloid fibrils were incorporated into hybrid carbon/amyloid membranes and used to filer Pt-, Cr-, and Pb-containing water to produce water of drinkable standards containing < 10 ppb heavy metals. This process can easily be upscaled due to its simplicity and minimal use of chemical reagents, pointing towards the future of low-cost yet efficient water treatment technologies. Nanyang Technological University Published version This research was supported by the strategic initiative on biomimetic and sustainable materials (IBSM), Nanyang Technological University (NTU), Singapore. 2022-11-09T00:18:26Z 2022-11-09T00:18:26Z 2022 Journal Article Soon, W. L., Peydayesh, M., Mezzenga, R. & Miserez, A. (2022). Plant-based amyloids from food waste for removal of heavy metals from contaminated water. Chemical Engineering Journal, 445, 136513-. https://dx.doi.org/10.1016/j.cej.2022.136513 1385-8947 https://hdl.handle.net/10356/162784 10.1016/j.cej.2022.136513 2-s2.0-85129670309 445 136513 en Chemical Engineering Journal © The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). application/pdf |
| spellingShingle | Science::Biological sciences Engineering::Materials Waste Management Recycling Soon, Wei Long Peydayesh, Mohammad Mezzenga, Raffaele Miserez, Ali Plant-based amyloids from food waste for removal of heavy metals from contaminated water |
| title | Plant-based amyloids from food waste for removal of heavy metals from contaminated water |
| title_full | Plant-based amyloids from food waste for removal of heavy metals from contaminated water |
| title_fullStr | Plant-based amyloids from food waste for removal of heavy metals from contaminated water |
| title_full_unstemmed | Plant-based amyloids from food waste for removal of heavy metals from contaminated water |
| title_short | Plant-based amyloids from food waste for removal of heavy metals from contaminated water |
| title_sort | plant based amyloids from food waste for removal of heavy metals from contaminated water |
| topic | Science::Biological sciences Engineering::Materials Waste Management Recycling |
| url | https://hdl.handle.net/10356/162784 |
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