共查询到20条相似文献,搜索用时 109 毫秒
1.
工业生物技术是指以微生物或酶为催化剂进行物质转化,大规模地生产人类所需的化学品、医药、燃料、材料、食品等产品的生物技术。发展工业生物技术是人类由化石经济向生物经济过渡的关键路径,是解决人类目前面临的资源、能源及环境问题的重要手段。中国科学院天津工业生物技术研究所是我国工业生物技术和生物制造领域的主力代表。本文结合该研究所成立十年来的发展,简要回顾了我国工业生物技术发展战略规划布局、重要技术突破进展和行业影响,并对我国工业生物技术和生物制造的未来发展进行了展望分析。 相似文献
2.
3.
4.
5.
作为现代生物产业的核心,生物制造涵盖了从生物资源到生物技术,再到生物产业的价值链,集中体现了现代生物技术在医药、农业、能源、材料、化工、环保等多个工业领域的应用,对经济社会可持续发展进程有重要推动作用。当前,生物制造已成为世界主要发达经济体科技产业布局的重点领域之一,吸引了大量公共投资和社会资本,形成了价值数十亿美元级别的投资风口。调研统计2018~2019年全球150家生物制造相关企业201次融资事件,梳理生物制造产业的国内外发展环境和融资现状,为我国生物制造产业发展提出建议,以期引导领域科技成果转移转化、技术资本对接和行业繁荣发展,为我国经济社会可持续发展做出贡献。 相似文献
6.
资源匮乏、能源短缺和环境污染日趋恶化等现实问题,已经成为社会可持续发展的巨大障碍。工业生物技术作为生物技术发展的第三次浪潮,是解决目前人类所面临的资源、能源与环境问题的有效途径之一,是工业可持续发展最有希望的技术。本期“中国工业生物技术发展高峰论坛·2008”专刊, 集中展现了我国工业生物技术专家学者在生物炼制和生物基化学品、微生物基因组学和生物信息学、代谢工程与药物研发、现代工业酶技术、生物炼制细胞工厂、生物催化与生物转化、工业生物过程技术以及工业微生物菌种的选育和改良等工业生物技术领域所取得的最新进展。希望通过专刊的出版, 更好地促进我国工业生物技术领域的交流和发展。 相似文献
7.
资源匮乏、能源短缺和环境污染日趋恶化等现实问题,已经成为社会可持续发展的巨大障碍。工业生物技术作为生物技术发展的第三次浪潮,是解决目前人类所面临的资源、能源与环境问题的有效途径之一,是工业可持续发展最有希望的技术。本期“中国工业生物技术发展高峰论坛·2008”专刊, 集中展现了我国工业生物技术专家学者在生物炼制和生物基化学品、微生物基因组学和生物信息学、代谢工程与药物研发、现代工业酶技术、生物炼制细胞工厂、生物催化与生物转化、工业生物过程技术以及工业微生物菌种的选育和改良等工业生物技术领域所取得的最新进展。希望通过专刊的出版, 更好地促进我国工业生物技术领域的交流和发展。 相似文献
8.
9.
手性化学品是传统制造工业的重要产品之一,现代生物技术的快速进步极大地推动了生物制造手性化学品的快速发展。目前,生物制造手性化学品受到世界各国的广泛关注,已经成为发达国家工业生物技术领域重要的科技与产业发展方向。本文主要介绍了国内外生物制造手性化学品的研究现状和发展趋势。今后应大力加强系统技术平台和理论体系的构建,为建设重要手性化学品的先进绿色生物制造产业提供全面的技术支撑。 相似文献
10.
生物经济是指通过可持续的方式,利用可再生自然资源来生产食品、能源、生物技术产品和服务的一切经济活动的总和。生物经济是继农业经济、工业经济、信息经济之后,人类经济社会发展的第四次浪潮。概述全球生物经济发展现状,梳理世界主要经济体生物经济战略布局,归纳生物经济未来发展的四个主要方向,通过调研统计分析生物制药、生物基材料和化学品、生物农业和未来食品三个生物产业重点领域的投融资数据,预判未来生物产业投融资前景,并针对我国生物产业投融资提出建议。 相似文献
11.
12.
K. Hausmann 《Protoplasma》1979,100(2):199-213
Summary The membranes of the pellicle of the ciliatePseudomicrothorax dubius are investigated using thin section electron microscopy and freeze-fracture replicas. The plasma membrane is covered by a surface coat and is connected to the outer alveolar membrane by short, sometimes branched, bridges. The inner alveolar membrane is coated on both sides. The epiplasm lies in intimate contact with the cytoplasmic surface of this membrane, and there is a corresponding deposit on the other surface. This deposit is regularly striated.The epiplasmic layer and the alveoli are interrupted at sites of cytotic activity,e.g., the attachment sites of trichocysts, the cytoproct, and the parasomal sacs. The striated deposit ends where the epiplasm ends, indicating a direct relationship between these two epimembranous layers.There is a deposit along the sides of the first part of the tip of the trichocysts, and in this region the trichocyst membrane is free of intramembranous particles.The membrane of the parasomal sacs has a coat on both surfaces. That on the extraplasmic surface is similar to the surface coat of the plasma membrane. The origin of the cytoplasmic coat is unknown. The cytotic activity of these sacs is indicated by their highly irregular profiles. 相似文献
13.
Summary The differentiation of the spermatid, especially in reference to the formation of the flagellum, and transformation of the shape of the nucleus was investigated in the domestic fowl.In the early stage of the spermatid, a prominent Golgi apparatus appears around the centrioles. The Golgi vesicles then surround the axial-filament complex which develops from the distal centriole. These vesicles fuse to form continuous membrane at the earliest stage of flagellar formation, and in the succeeding stage Golgi lamellae are attached to the plasma membrane of the developing flagellum. From these observations, it is assumed that Golgi apparatus may be a source of the membrane system of the flagellum.The microtubules distributed around the nucleus form the circular manchette. The anterior region of the nucleus with the manchette is cylindrical in shape and the posterior region without it remains irregular in shape. When the circular manchette has been completed, the whole nucleus acquires a slender cylindrical shape. The circular manchette then changes into the longitudinal manchette. The nuclei of spermatids without a longitudinal manchette are abnormal in shape. In view of these observations it is assumed that the nuclear shaping of the spermatid may be accomplished by circular manchette and the maintenance of shape of the elongated nucleus by longitudinal manchette.The authors wish to thank Mr. Takayuki Mori for his helpful suggestions and technical advices 相似文献
14.
15.
16.
17.
18.
19.
Panova IG Sharova NP Dmitrieva SB Levin PP Tatikolov AS 《Comparative biochemistry and physiology. Part A, Molecular & integrative physiology》2008,151(4):676-681
This study aimed to analyze the aqueous humor (AH) and the vitreous body (VB) of the eye of the adult frog Rana temporaria L. as a representative species of amphibians, which lead a semi-terrestrial life. The presence of collagen, albumin, uric acid and electron donors was shown in both media; however, there are slight differences in their concentrations. To determine collagen, a spectral-fluorescent probe, cyanine dye, was used. The presence of collagen in AH of the frog was found at the first time. The total content of electron donors (ascorbic and uric acids, tryptophan, and tyrosine) in VB and HA was roughly estimated at ~ 1.5 × 10− 4 mol/L. Both VB and AH absorb light in similar UV regions. The total protein and albumin contents in AH were found to be somewhat higher than those in VB. The uric acid content was at an equally low level in both intraocular media. It is supposed that the similarity of VB and AH compositions shown in this work is due to some exchange between VB and AH contents in the course of accommodation. The role of intraocular fluids in physiological functions of the eye and in protecting the retina against UV light is discussed. 相似文献
20.
Summary The choriocapillaris is a fenestrated capillary bed located posterior to the retinal pigment epithelium. It serves as the main source of supply to the photoreceptors, retinal pigment epithelium, and other cells of the outer retina. The permeability of these capillaries to intravenously injected ferritin (MW — approx. 480,000; mol. diam. 11 nm) was examined in the mouse, rabbit, and guinea pig, each of which is characterized by a different type of retinal vascularization. In all three species, the bulk of the ferritin remained in the capillary lumina, where it appeared to be blocked at the level of the diaphragmed fenestrae. Some ferritin was present in endothelial cell vacuoles. The results confirm previous work on the rat choriocapillaris and indicate that the barrier function of the choriocapillary endothelium is present even among species in which the retinal circulation differs significantly.Supported by NIH grant EY03418 相似文献