异丙醇(IPA)

Search documents
于涛团队:转化丙酮电&生物催化合成香豆酸、脂肪酸、番茄红素等高值天然产物 | Nature Sustainability
合成生物学与绿色生物制造· 2025-06-10 09:22
Core Viewpoint - The research group led by Yu Tao focuses on utilizing synthetic biology to address major issues such as sustainable manufacturing, green energy, and food security through innovative methods of converting CO2 into valuable compounds [1][2]. Group 1: CO2 Conversion and Sustainable Production - Significant progress has been made in converting CO2 into simple low-carbon compounds (C1-3) through various methods, but producing complex compounds remains challenging [1]. - The research group successfully demonstrated the conversion of CO2 into glucose and fatty acids using an electrochemical-coupled microbial cell factory, providing a viable method for sustainable production of sugar-derived food and chemicals [1]. - This achievement was recognized as one of the "Top Ten Scientific Advances in China" in 2022 [1]. Group 2: Synthetic Energy Systems - The research team constructed a synthetic energy system within yeast cells, supporting cell growth and efficient fatty acid synthesis [2]. - Low-carbon compounds such as methanol and ethanol were converted into sugars and sugar derivatives, including glucose and starch, through synthetic biology and metabolic engineering techniques [2]. Group 3: Upcycling Chemical Byproducts - The research group collaborated with other institutions to address the challenge of surplus byproducts in the chemical industry, specifically converting excess acetone into high-value natural products using a tandem electro-biosystem [3]. - The results of this work were published in Nature Sustainability, showcasing a novel approach to upcycling surplus acetone into long-chain chemicals [3][6]. Group 4: Electrochemical and Biological Catalysis - A synergistic strategy combining electrochemical and synthetic biology was proposed, where acetone is first converted into high-purity isopropanol (IPA) through electrochemical hydrogenation, followed by fermentation to produce high-value natural products [6][8]. - The research demonstrated a maximum IPA Faradaic efficiency of 95.6% and a current density of -240 mA cm-2 using a specially designed catalyst [8][10]. Group 5: Future Directions - Future research will focus on optimizing the bipolar membrane electrode reactor design, regulating metabolic pathways for fermentation, and expanding the application of electro-biosynthetic coupling systems [15].
光刻胶上游原材料国内企业进展如何?
势银芯链· 2025-05-20 01:55
Core Viewpoint - The global photoresist market is expected to exceed $15 billion by 2025, with China's market share increasing to 35%, highlighting significant growth potential in the industry [2]. Industry Overview - The photoresist industry is a critical component of high-tech materials, encompassing the entire chain from research and development to production and sales [2]. - In the high-end semiconductor photoresist sector, Japanese companies like JSR and Tokyo Ohka dominate with over 85% market share, while domestic production rates are below 5%, indicating a significant technological and market monopoly [2]. Market Dynamics - The advancement in the photoresist industry is driven by downstream demand, where manufacturers' process improvements necessitate technological iterations in photoresists and raw materials [2]. - Domestic manufacturers are increasingly replacing foreign suppliers and expanding production, creating opportunities for photoresist companies [2]. Supply Chain Components - The upstream of the photoresist supply chain includes raw materials such as resins, monomers, photosensitizers, and solvents; the midstream involves the production and synthesis of photoresists based on formulations; and the downstream includes applications in printed circuit boards, LCDs, and IC chips across various industries [2]. Key Raw Materials - Solvents constitute 50%-90% of photoresist composition, essential for dissolving resins and photosensitizers to create a uniform photoresist solution [3][5]. - Photosensitizers, making up 1%-6% of the composition, are crucial for initiating chemical reactions under specific wavelengths of light, altering the solubility of resins during the development process [3][8]. - Resins account for 10%-40% of photoresist, serving as the inert polymer matrix that binds materials together and determines the basic performance of the photoresist after exposure [3]. Market Players - Domestic companies like Yida Co. hold over 40% market share in electronic-grade PM solvents, while other firms like Xilong Science and Jingrui Electric Materials are also making strides in the solvent sector [7]. - The photosensitizer market is dominated by international players such as BASF and IGM Resins, with a trend of production capacity shifting towards China due to patent expirations and increased domestic demand [10]. Product Types and Applications - Different types of photoresists are used for various exposure wavelengths, with global resin supply primarily monopolized by companies like Sumitomo Chemical and Dow Chemical [11]. - Domestic enterprises such as Shengquan Group and Tongcheng New Materials are making significant advancements in photoresist resin production, with some achieving production capacities exceeding 5,000 tons per year [12]. Upcoming Events - The 2025 TrendBank (Fifth) Photoresist Materials Industry Conference will be held from July 8-10 in Hefei, focusing on new applications, current trends, and in-depth discussions on the photoresist supply chain [13].