微结构细菌生态系统的生物制造使用混乱的生物打印:推进微生物工程的体外研究
Ariel Cantoral Sánchez1, Oscar Emmanuel Solís-Pérez1, Francisco Javier Javier Flores Loera1
1Centro de Biotecnología-FEMSA, Tecnologico de Monterrey, Ave. Eugenio Garza Sada 2501 sur, Monterrey, NL, 64849, MEXICO.
Biofabrication
|May 7, 2025
概括
混乱的3D生物打印创造了结构化的微生物社区,模仿自然生态系统. 这种技术增强了细菌的共存和活力,为微生物群研究和生物医学应用提供了新的工具.
科学领域:
- 微生物学 微生物学
- 生物技术是生物技术.
- 材料科学 材料科学 材料科学
背景情况:
- 混合微生物群落对生态系统至关重要,但在体外复制它们的空间组织是困难的.
- 传统的微生物学方法使用混合文化,无法捕捉结构化环境中的复杂相互作用.
- 混乱的3D打印提供了一种创新的方法来创建空间有组织的微生物联盟.
研究的目的:
- 开发和评估混乱的3D打印,用于制造微结构细菌共同培养.
- 模仿自然微生物生态系统中观察到的空间分离.
- 研究微型架构对细菌生长动态和社区稳定性的影响.
主要方法:
- 使用凯尼克斯静态混合器喷嘴利用混乱的3D打印来生物打印一个细菌联盟 (Lactobacillus rhamnosus,Bifidobacterium bifidum,Escherichia coli).
- 创建的水凝结构具有多层的微观结构,以允许细菌菌株的部分分离.
- 使用光显微镜,殖民地计数和定量聚合酶连锁反应来表征共同培养.
主要成果:
- 混乱的生物打印成功地创造了具有独特的微结构共同培养,使不同细菌菌株的共存和群体平衡成为可能.
- 与混合条件相比,分层安排在72小时内显著提高了共同种植的生存能力和平衡.
- 微型架构影响了细菌生长动态,并且实现了无氧细菌 (B. bifidum) 在缺氧层中的定位.
结论:
- 混乱生物打印是一种强大的工具,用于设计微生物生态系统,在微米尺度上具有精确的空间控制.
- 这种方法促进了对结构化环境中的微生物相互作用的理解.
- 潜在的生物医学应用包括抗生素测试,微生物群研究,生物修复和合成生物学.
相关概念视频
01:29Bioreactor Design and Operational System
Bioreactors are engineered vessels designed to cultivate microorganisms under controlled conditions for industrial bioprocessing. They maintain sterility and allow precise regulation of pH, temperature, oxygen, and nutrient levels to optimize microbial growth and metabolite production. Bioreactors range from small laboratory units of 1 liter to industrial systems holding up to 500,000 liters, though only about 75% of their volume is actively used for fermentation. The remaining headspace...
01:22Bioreactor Controls-III
Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
01:14Scale-Up Processes
The scale-up of microbial fermentation processes is essential in industrial biotechnology, allowing the transition from laboratory-scale experiments to commercial-scale production while aiming to maintain product yield and quality. This process requires meticulous adjustment of equipment design, process parameters, and contamination control strategies to accommodate increasing culture volumes.At the laboratory scale, cultures are typically maintained in 1 to 10-liter glass or autoclavable...
01:24iChip
The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...