Cell-free biosynthesis is emerging as a very attractive alternative for the production of market-relevant molecules. The free combination of enzymes, regardless of where they are isolated from, raises the possibility to build more efficient synthetic routes but at the same time leads to higher complexity regarding the analysis of the different enzymatic steps. Here we present an analytical method for the real-time analysis of acyl-CoA blocks forming and consuming during multi-step catalyses. We focused on malonyl-Coenzyme A and acetyl-CoA, which are the most used acyl-CoA units for carbon chain elongations. By employing capillary electrophoresis, we could detect the decrease of educts and the formation of products in a time-resolved fashion.
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http://dx.doi.org/10.1002/ansa.202200021 | DOI Listing |
Materials (Basel)
January 2024
Beijing Institute of Spacecraft System Engineering, Beijing 100094, China.
Measuring the size distribution and temperature of high-temperature dispersed particles, particularly in-flame soot, holds paramount importance across various industries. Laser-induced incandescence (LII) stands out as a potent non-contact diagnostic technology for in-flame soot, although its effectiveness is hindered by uncertainties associated with pre-determined thermal properties. To tackle this challenge, our study proposes a multi-parameter inversion strategy-simultaneous inversion of particle size distribution, thermal accommodation coefficient, and initial temperature of in-flame soot aggregates using time-resolved LII signals.
View Article and Find Full Text PDFSens Diagn
November 2023
Reading School of Pharmacy, University of Reading Whiteknights Reading RG6 6UB UK +44 (0)118 378 4253.
Measuring the complex processes of blood coagulation, haemostasis and thrombosis that are central to cardiovascular health and disease typically requires a choice between high-resolution low-throughput laboratory assays, or simpler less quantitative tests. We propose combining mass-produced microfluidic devices with open-source robotic instrumentation to enable rapid development of affordable and portable, yet high-throughput and performance haematological testing. A time- and distance-resolved fluid flow analysis by Raspberry Pi imaging integrated with controlled sample addition and illumination, enabled simultaneous tracking of capillary rise in 120 individual capillaries (∼160, 200 or 270 μm internal diameter), in 12 parallel disposable devices.
View Article and Find Full Text PDFAnal Sci Adv
December 2022
Cell-free biosynthesis is emerging as a very attractive alternative for the production of market-relevant molecules. The free combination of enzymes, regardless of where they are isolated from, raises the possibility to build more efficient synthetic routes but at the same time leads to higher complexity regarding the analysis of the different enzymatic steps. Here we present an analytical method for the real-time analysis of acyl-CoA blocks forming and consuming during multi-step catalyses.
View Article and Find Full Text PDFACS Nano
October 2022
Department of Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden.
Time-resolved measurements of changes in the size and shape of nanobiological objects and layers are crucial to understand their properties and optimize their performance. Optical sensing is particularly attractive with high throughput and sensitivity, and label-free operation. However, most state-of-the-art solutions require intricate modeling or multiparameter measurements to disentangle conformational or thickness changes of biomolecular layers from complex interfacial refractive index variations.
View Article and Find Full Text PDFInt J Environ Res Public Health
May 2022
Residential Building Systems Group and Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
Recent studies have succeeded in relating emissions of various volatile organic compounds to material mass diffusion transfer using detailed empirical characteristics of each of the individual emitting materials. While significant, the resulting models are often scenario specific and/or require a host of individual component parameters to estimate emission rates. This study developed an approach to estimate aggregated emissions rates based on a wide number of field measurements.
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