A stereoselective bioreduction of 2-oxocycloalkanecarbonitriles was concurrently coupled to a whole cell-catalyzed nitrile hydrolysis in one-pot. The first step, mediated by ketoreductases, involved a dynamic reductive kinetic resolution, which led to 2-hydroxycycloalkanenitriles in very high enantio- and diastereomeric ratios. Then, the simultaneous exposure to nitrile hydratase and amidase from whole cells of Rhodococcus rhodochrous provided the corresponding 2-hydroxycycloalkanecarboxylic acids with excellent overall yield and optical purity for the all-enzymatic cascade.
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http://dx.doi.org/10.1021/acs.orglett.6b01510 | DOI Listing |
Sensors (Basel)
April 2023
Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yutian Road, Shanghai 200083, China.
This study presents a glucose biosensor based on electrospun core-sheath nanofibers. Two types of film were fabricated using different electrospinning procedures. Film F1 was composed solely of core-sheath nanofibers fabricated using a modified coaxial electrospinning process.
View Article and Find Full Text PDFResearch (Wash D C)
August 2022
Key Laboratory of Flexible Electronics (KLOFE), Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211800, China.
The one-pot combination of biocatalytic and chemocatalytic reactions represents an economically and ecologically attractive concept in the emerging cascade processes for manufacturing. The mutual incompatibility of biocatalysis and chemocatalysis, however, usually causes the deactivation of catalysts, the mismatching of reaction dynamic, and further challenges their integration into concurrent chemo-biocascades. Herein, we have developed a convenient strategy to construct versatile functional metal-organic framework micro-nanoreactors (MOF-MNRs), which can realize not only the encapsulation and protection of biocatalysts but also the controllable transmission of substances and the mutual communication of the incompatible chemo-biosystems.
View Article and Find Full Text PDFChembiochem
June 2022
School of Chemistry, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.
β-Nicotinamide mononucleotide (NMN) has recently gained attention for a nutritional supplement because it is an intermediate in the biosynthesis of nicotinamide adenine dinucleotide (NAD ). In this study, we developed NMN synthesis by coupling two modules. The first module is to culture E.
View Article and Find Full Text PDFJ Am Chem Soc
October 2020
Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, Zhejiang 310016, China.
Osteoporosis is a global chronic disease characterized by severe bone loss and high susceptibility to fragile fracture. It is widely accepted that the origin acidified microenvironment created by excessive osteoclasts causes irreversible bone mineral dissolution and organic degradation during osteoclastic resorption. However, current clinically available approaches are mainly developed from the perspective of osteoclast biology rather than the critical acidified niche.
View Article and Find Full Text PDFOrg Lett
July 2016
Departament of Organic and Inorganic Chemistry, University of Oviedo, Julián Clavería, 8, 33006 Oviedo, Spain.
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