January 8 Morning, the National Science and Technology Awards Congress held in Beijing. Conference scene, won the national highest science and Technology award, National Natural Science Award, National Technology Invention Award, National Science and Technology Progress Award and international Science and Technology Cooperation Award of scientific research personnel one by one received commendation.
Through the disciplinary review team, the Assessment Committee and the award committee level Three assessment, the 2017 National Science and Technology Award for a total of 271 projects and 9 scientific and technical experts. Among them, the national highest Science and Technology Award 2 people; National Natural Science Awards 35, including the first prize 2, second Prize 33, the National Technical Invention Award 66, including First prize 4, second Prize 62, the National Science and Technology Progress Award 170, including the Grand prize 3, the first prize 21 items (including Innovation Team 3), Second Prize 146, awarded 7 foreign science and technology experts People's Republic of China International Science and Technology Cooperation Award.
Among them, there are two awards related to led. Yang Qichang, Weilingling and other team completed projects-"high light efficiency low-power led Intelligent Plant Factory key technology and system integration" won the National Science and Technology Progress Second prize. In addition, the "Gather induced luminescence" project, led by Tambong Academician, was awarded the first prize of 2017 National Natural science.
Key technology and system integration of high light efficiency low energy led intelligent plant Factory
It is understood that the key technologies that the project has broken through include:
Based on the response characteristics of plant photosynthesis to different spectra, the concept of "light formula" was first put forward, and the optimization parameters of light formula for typical crops in different growth stages were constructed. Created based on the light formula of the red (660nm) and Blu-ray (450nm) chip combination, Blu-ray chip and phosphor excitation multispectral combination (R/G/B/FR) led energy-saving light source; the development of a mobile LED light source and its light environment control technology based on plant developmental characteristics has significantly reduced energy consumption of light source. Compared with fluorescent lamps, the energy saving rate is over 62%.
At the same time, the paper first presents the method of energy-saving thermostat in plant factory, and invented the energy-saving regulation technology based on outdoor cold source and air conditioner. Based on nighttime outdoor air containing cold, the reality of high energy consumption in light period air-conditioning, the first put forward the light period in the night, the introduction of outdoor natural cold source cooling "light-temperature coupled energy-saving thermostat" method, invented based on outdoor cold source and air-conditioning coordinated thermostat plant plants Energy-saving environment control equipment, significantly reduce air-conditioning energy consumption. Compared with the traditional air-conditioning cooling, energy-saving rate reached 24.6-63.0%.
The technology of UV nanometer TiO2 nutrient solution and the method of improving vegetable quality before harvesting was developed, and the technology of vegetable quality improvement based on light-nutrition coordinated control was developed. A technical method of UV nanometer TiO2 in synergetic treatment of the self poisonous substance of nutrient liquid was invented, the new technique of controlling vegetable quality by short-term continuous illumination before harvesting was first put forward, and the optimized parameters of light environment and control strategy for improving vegetable quality were proved, and the nitrate content of leaf vegetable was decreased by more than 30%, and the content of VC and soluble sugar was improved remarkably.
Development of plant plant light efficiency, energy efficiency and nutritional quality promotion of the environment-nutrition multi-factor synergy technology, the integration of the creation of 3 series of intelligent led plant factory sets of products. The logic control strategy and algorithm based on multiple factors such as light formula, light-temperature coupling and nutrition quality promotion are proved. The intelligent control technology of plant plant based on IoT is developed, and the on-line detection, remote access, and the factors such as temperature, humidity, illumination, CO2 concentration and nutrient liquid EC, PH, do and so on are realized. Program Update and network intelligent control. Integration created 3 series of intelligent LED plant factory complete sets of technical products: scale-oriented, mobile, family miniature plant plants.
Narrator: At present, China plant lighting plant development is very fast, compared to Japan, China Taipei, the United States, as well as the Netherlands and other plant factories in the research and production practices of the longer countries and regions, China as an up-and-comer is really from the industrial perspective to do the relevant research, and from the quality of plant growth and the extent, China is far beyond other countries. Today, "high light efficiency low-power led Intelligent Plant Factory key technology and system integration" won the National Science and Technology Progress Second prize, or China led plant lighting technology to push the new heights.
Aggregation induced luminescence
Cluster induced luminescence (aggregation-induced emission, AIE) project has prepared a series of AIE molecular system, perfected and enriched the theory of AIE, and developed the High-tech application of AIE molecule. Through rational molecular design, the AIE molecule of blue and dark blue light with good performance is obtained, which provides an effective way for the design of high efficient blue-ray molecule, and realizes the quantitative detection of CO2 "point-light" and traces of metal ions such as aluminum ions. , the detection of glucose specificity and the growth monitoring of specific cell lines were realized.
Discovery and mechanism of aggregation induced luminescence
The most notable advantage of AIE material is its high efficient luminescence in the aggregation state. According to Tambong, the "aggregation-induced luminescence" material also reverses the luminous quenching of traditional organic light-emitting materials (ACQ) from the principle level, that is, the material is luminous from a single molecule, but the problem of weakening or even not emitting light after aggregation has led to the realization that a single molecule does not glow, but is aggregated together to emit light.
Tambong said that, in addition to making a foldable mobile phone screen, "aggregation-induced luminescence" technology can be like X-ray, CT like in the medical basic diagnosis, as well as the treatment of cancer and many other aspects of the role of the broad prospects, promising.
According to the information, after 16 years of development, AIE materials are used in almost all fields of luminescent materials, such as intelligent materials with specific responses to stimuli (PH, temperature, solvents, pressure, etc.) and reversibility sensing, tunable refractive index liquid crystals or polarized materials, efficient OLED display and lighting materials, Optical waveguide materials, selective biochemical sensing materials, trace-recognition materials and organelles in biological systems, viruses or bacteria, vascular imaging materials, etc. The application of AIE fluorescence probe in the field of cell specific imaging and long term tracking is expected.
Narrator: At present, more than 1100 units of scientists in more than 60 countries and regions in the world are engaged in AIE related research. The number of papers and citations published in the Aie field has increased exponentially, with more than 1200 papers published in 2017 and more than 36,000 citations. At home and abroad has published a series of AIE special issue and has held several AIE conferences, AIE has been included in the experimental teaching of undergraduates at home and abroad.
"Aggregation induced Luminescence" Project won the 2017 National Natural Science First prize will help push the AIE into a brand of Chinese scientists, I believe that there will be more innovative results emerge, will be more gathered, the more luminous.