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Root nodules are agricultural-important symbiotic plant-microbe composites in which microorganisms receive energy from plants and reduce dinitrogen (N) into fertilizers. Mimicking root nodules using artificial devices can enable renewable energy-driven fertilizer production. This task is challenging due to the necessity of a microscopic dioxygen (O) concentration gradient, which reconciles anaerobic N fixation with O-rich atmosphere. Here we report our designed electricity-powered biological|inorganic hybrid system that possesses the function of root nodules. We construct silicon-based microwire array electrodes and replicate the O gradient of root nodules in the array. The wire array compatibly accommodates N-fixing symbiotic bacteria, which receive energy and reducing equivalents from inorganic catalysts on microwires, and fix N in the air into biomass and free ammonia. A N reduction rate up to 6.5 mg N per gram dry biomass per hour is observed in the device, about two orders of magnitude higher than the natural counterparts.
This article was published in the following journal.
Name: Nature communications
Chickpea is a major protein source in low socio-economic classes and cultivated in marginal soil without fertilizer or irrigation. As a result of its root nodule formation capacity chickpea can direct...
Legumes, a subset of flowering plants, form root nodules in symbiosis with nitrogen-fixing bacteria. The regulatory network controlling nodule formation has remained mysterious. In a recent issue of S...
To investigate the clinical implications and natural history of observations showing a "nodule-in-nodule" architecture on hepatobiliary phase (HBP) in a cirrhotic population.
Artificial intelligence is a hot topic in medical imaging. The development of deep learning methods and in particular the use of convolutional neural networks (CNNs), have led to substantial performan...
To develop a deep learning-based artificial intelligence (AI) scheme for predicting the likelihood of the ground-glass nodule (GGN) detected on CT images being invasive adenocarcinoma (IA) and also co...
This study retrospectively looks to determine the clinical success of ProRoot MTA used as an artificial apical barrier in teeth with immature apices.
Lung cancer is one of the leading cause of cancer related death in China. Lung cancer screening with low-dose computed tomography was considered as a better approach than radiography. Howe...
This study will evaluate which procedure is the best for patients referred for biopsy of a lung nodule (growth in the lung) meeting the size and location requirements of the protocol. Two ...
Management of incidental lung nodule is difficult and mainly based on simple morphometric characteristics such as maximum size and shape. Radiomics could play a role in simplifying this ma...
Regular thyroid diagnostics versus augmented thyroid work-up with additional I-124 PET/US fusion for metabolic-sonographic nodule allocation in patients with benign thyroid diseases
A small round or oval, mostly subcutaneous nodule made up chiefly of a mass of Aschoff bodies and seen in cases of rheumatic fever. It is differentiated from the RHEUMATOID NODULE which appears in rheumatoid arthritis, most frequently over bony prominences. (From Dorland, 27th ed)
Genus of BACTERIA in the family Frankiaceae. They are nitrogen-fixing root-nodule symbionts of many species of woody dicotyledonous plants.
Use of a metal casting, usually with a post in the pulp or root canal, designed to support and retain an artificial crown.
A single lung lesion that is characterized by a small round mass of tissue, usually less than 1 cm in diameter, and can be detected by chest radiography. A solitary pulmonary nodule can be associated with neoplasm, tuberculosis, cyst, or other anomalies in the lung, the CHEST WALL, or the PLEURA.
Devices intended to replace non-functioning organs. They may be temporary or permanent. Since they are intended always to function as the natural organs they are replacing, they should be differentiated from PROSTHESES AND IMPLANTS and specific types of prostheses which, though also replacements for body parts, are frequently cosmetic (EYE, ARTIFICIAL) as well as functional (ARTIFICIAL LIMBS).
Biological therapy involves the use of living organisms, substances derived from living organisms, or laboratory-produced versions of such substances to treat disease. Some biological therapies for cancer use vaccines or bacteria to stimulate the body&rs...
A diagnostic test is any kind of medical test performed to aid in the diagnosis or detection of disease. For example: to diagnose diseases to measure the progress or recovery from disease to confirm that a person is free from disease Clin...