Microchips de papel para la detección de pigmentos fotosintéticos
Growing populations demand higher food production. Agricultural yields are directly related to the nutritional status of crops. Nitrogen (N) is one of the mineral nutrients limiting the growth of plants and its deficiency is associated with a lower plant growth and lower yields. Nitrogen is the main...
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| Autores principales: | , , , , , , |
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| Publicado: |
2019
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| Materias: | |
| Acceso en línea: | https://bdigital.uncu.edu.ar/fichas.php?idobjeto=14378 |
| Sumario: | Growing populations demand higher food production. Agricultural yields are directly related to the nutritional status of crops. Nitrogen (N) is one of the mineral nutrients limiting the growth of plants and its deficiency is associated with a lower plant growth and lower yields. Nitrogen is the main component of synthetic fertilizers and both the production of this type of fertilizer and its application are expensive. The determination of N in plant tissues requires analytical techniques that demand a high analysis time, use relatively high volumes of harm solvents and require complex equipment. Another strategy is to infer the nutritional status of N by monitoring the concentration of chlorophylls since they are directly related to the concentration of N in plant tissues. Monitoring the chlorophyll content in leaves when performing timely nitrogenous fertilizations and in the quantities required for a given crop, is a practice that is commonly used in agricultural-based companies that can afford the necessary investment cost (> USD 2000) to purchase the equipment to measure the chlorophyll content in leaves.On the other hand, the use of paper microfluidic devices (PADs) has growing application in various fields due to their versatility, low cost and easy operation without the need to have with complex equipment. The development of these devices for the determination of chlorophylls has not yet been explored, despite its great potential. Therefore, the main objective of the present project is to develop sustainable, portable, low cost microfluidic devices for the determination of chlorophyll a and b in vine plants and the application of them to infer the nutritional status of plants in the field. |
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