1
|
Shi X, Ling Y, Li Y, Li G, Li J, Wang L, Min F, Hübner R, Yuan S, Zhan J, Cai B. Complete Glucose Electrooxidation Enabled by Coordinatively Unsaturated Copper Sites in Metal-Organic Frameworks. Angew Chem Int Ed Engl 2023; 62:e202316257. [PMID: 37941302 DOI: 10.1002/anie.202316257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/01/2023] [Accepted: 11/08/2023] [Indexed: 11/10/2023]
Abstract
The electrocatalytic oxidation of glucose plays a vital role in biomass conversion, renewable energy, and biosensors, but significant challenges remain to achieve high selectivity and high activity simultaneously. In this study, we present a novel approach for achieving complete glucose electrooxidation utilizing Cu-based metal-hydroxide-organic framework (Cu-MHOF) featuring coordinatively unsaturated Cu active sites. In contrast to traditional Cu(OH)2 catalysts, the Cu-MHOF exhibits a remarkable 40-fold increase in electrocatalytic activity for glucose oxidation, enabling exclusive oxidation of glucose into formate and carbonate as the final products. The critical role of open metal sites in enhancing the adsorption affinity of glucose and key intermediates was confirmed by control experiments and density functional theory simulations. Subsequently, a miniaturized nonenzymatic glucose sensor was developed showing superior performance with a high sensitivity of 214.7 μA mM-1 cm-2 , a wide detection range from 0.1 μM to 22 mM, and a low detection limit of 0.086 μM. Our work provides a novel molecule-level strategy for designing catalytically active sites and could inspire the development of novel metal-organic framework for next-generation electrochemical devices.
Collapse
Affiliation(s)
- Xiaoyue Shi
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Qingdao University of Science and Technology, Qingdao, 266061, P. R. China
| | - Yiqi Ling
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Youcong Li
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Guanhua Li
- Shenzhen Refresh Intelligent Technology Co. Ltd., Guangdong, 518000, P. R. China
| | - Juan Li
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Lingwei Wang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Fanhong Min
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - René Hübner
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328, Dresden, Germany
| | - Shuai Yuan
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Jinhua Zhan
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Bin Cai
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
- Shenzhen Research Institute of Shandong University, Shenzhen, 518057, P. R. China
| |
Collapse
|
2
|
Hoang NH, Golten O, Forsberg Z, Eijsink VGH, Richter M. In situ H2O2 Generation by Choline Oxidase and Its Application in Amino Polysaccharide Degradation by Coupling to Lytic Polysaccharide Monooxygenase. Chembiochem 2023:e202300363. [PMID: 37191321 DOI: 10.1002/cbic.202300363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 05/16/2023] [Indexed: 05/17/2023]
Abstract
Chitin, the most abundant amino polysaccharide in Nature, has many applications in different fields. However, processing of this recalcitrant biopolymer in an environmentally friendly manner remains a major challenge. In this context, lytic polysaccharide monooxygenases (LPMOs) are of interest, as they can act on the most recalcitrant parts of chitin and related insoluble biopolymers such as cellulose. Efficient LPMO catalysis can be achieved by feeding reactions with H2O2, but careful control of H2O2 is required to avoid autocatalytic enzyme inactivation. Herein, we present a coupled enzyme system in which a choline oxidase from Arthrobacter globiformis is employed for controlled in situ generation of H2O2 that fuels LPMO-catalyzed oxidative degradation of chitin. We show that the rate, stability and extent of the LPMO reaction can be manipulated by varying the amount of choline oxidase and/or its substrate, choline chloride, and that efficient peroxygenase reactions may be achieved using sub-μM concentrations of the H2O2-generating enzyme. This coupled system requires only sub-stoichiometric amounts of the reductant that is needed to keep the LPMO in its active, reduced state. It is conceivable that this enzyme system may be used for bioprocessing of chitin in choline-based natural deep eutectic solvents.
Collapse
Affiliation(s)
- Nam-Hai Hoang
- Fraunhofer Institute for Interfacial Engineering and Biotechnology: Fraunhofer-Institut fur Grenzflachen- und Bioverfahrenstechnik IGB, Bioinspired Chemsitry, Schulgasse 11a, 94315, Straubing, GERMANY
| | - Ole Golten
- Norwegian University of Life Sciences, Faculty of Chemistry, Biotechnology and Food Science, Chr. Magnus Falsensvei 1, 1432, Ås, NORWAY
| | - Zarah Forsberg
- Norwegian University of Life Sciences, Faculty of Chemistry, Biotechnology and Food Science, Chr. Magnus Falsensvei 1, 1430, Ås, NORWAY
| | - Vincent G H Eijsink
- Norwegian University of Life Sciences, Faculty of Chemistry, Biotechnology and Food Science, P.O. Box 5003, NO-1432, Ås, NORWAY
| | - Michael Richter
- Fraunhofer Institute for Interfacial Engineering and Biotechnology: Fraunhofer-Institut fur Grenzflachen- und Bioverfahrenstechnik IGB, Bioinspired Chemsitry, Schulgasse 11a, 94315, Straubing, GERMANY
| |
Collapse
|
3
|
Zhu YQ, Zhou H, Dong J, Xu SM, Xu M, Zheng L, Xu Q, Ma L, Li Z, Shao M, Duan H. Identification of Active Sites Formed on Cobalt Oxyhydroxide in Glucose Electrooxidation. Angew Chem Int Ed Engl 2023; 62:e202219048. [PMID: 36807450 DOI: 10.1002/anie.202219048] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/09/2023] [Accepted: 02/17/2023] [Indexed: 02/20/2023]
Abstract
Transition-metal-based oxyhydroxides are efficient catalysts in biomass electrooxidation towards fossil-fuel-free production of valuable chemicals. However, identification of active sites remains elusive. Herein, using cobalt oxyhydroxide (CoOOH) as the archetype and the electrocatalyzed glucose oxidation reaction (GOR) as the model reaction, we track dynamic transformation of the electronic and atomic structure of the catalyst using a suite of operando and ex situ techniques. We reveal that two types of reducible Co3+ -oxo species are afforded for the GOR, including adsorbed hydroxyl on Co3+ ion (μ1 -OH-Co3+ ) and di-Co3+ -bridged lattice oxygen (μ2 -O-Co3+ ). Moreover, theoretical calculations unveil that μ1 -OH-Co3+ is responsible for oxygenation, while μ2 -O-Co3+ mainly contributes to dehydrogenation, both as key oxidative steps in glucose-to-formate transformation. This work provides a framework for mechanistic understanding of the complex near-surface chemistry of metal oxyhydroxides in biomass electrorefining.
Collapse
Affiliation(s)
- Yu-Quan Zhu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, 100029, Beijing, China
| | - Hua Zhou
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, 100029, Beijing, China
| | - Juncai Dong
- Institute of High Energy Physics, Chinese Academy of Sciences, 100049, Beijing, China
| | - Si-Min Xu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, 100029, Beijing, China
| | - Ming Xu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, 100029, Beijing, China
| | - Lirong Zheng
- Institute of High Energy Physics, Chinese Academy of Sciences, 100049, Beijing, China
| | - Qian Xu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230029, Hefei, Anhui, China
| | - Lina Ma
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, 100029, Beijing, China
| | - Zhenhua Li
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, 100029, Beijing, China
| | - Mingfei Shao
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, 100029, Beijing, China
| | - Haohong Duan
- Department of Chemistry, Tsinghua University, 100084, Beijing, China.,Engineering Research Center of Advanced Rare Earth Materials, Ministry of Education), Department of Chemistry, Tsinghua University, 100084, Beijing, China
| |
Collapse
|
4
|
Somorin T, Getahun S, Septien S, Mabbet I, Kolios A, Buckley C. Isothermal drying characteristics and kinetics of human faecal sludges. Gates Open Res 2021; 4:67. [PMID: 34056550 PMCID: PMC8135097 DOI: 10.12688/gatesopenres.13137.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2021] [Indexed: 11/20/2022] Open
Abstract
Background: Drying is an important step for the thermochemical conversion of solid fuels, but it is energy-intensive for treating highly moist materials. Methods: To inform the thermal treatment of faecal sludge (FS), this study investigated the drying characteristics and kinetics of various faecal wastes using thermogravimetric analysis and isothermal heating conditions. Results: The findings show that FS from the anaerobic baffled reactor (ABR) and ventilated improved pit latrines (VIP) exhibit similar drying characteristics, with maximum drying rates at 0.04 mg/min during a constant rate period that is followed by a distinct falling rate period. On the contrary, fresh human faeces (HF) and FS from urine diversion dry toilets (UDDT) exhibited a falling rate period regime with no prior or intermittent constant rate periods. The absence of a constant rate period in these samples suggested limited amounts of unbound water that can be removed by dewatering and vice versa for VIP and ABR faecal sludges. The activation energies and effective moisture diffusivity for the sludges varied from 28 to 36 kJ/mol and 1.7·10
-7 to 10·10
-7 m
2/s at 55°C and sludge thickness of 3mm. The Page model was consistent in modelling the different sludges across all temperatures. Conclusions: These results presented in this study can inform the design and development of innovative drying methods for FS treatment.
Collapse
Affiliation(s)
- Tosin Somorin
- Chemical and Process Engineering, University of Strathclyde, Glasgow, G1 1XQ, UK
| | - Samuel Getahun
- Pollution Research Group, University of Kwazulu-Natal, Durban, 4041, South Africa
| | - Santiago Septien
- Pollution Research Group, University of Kwazulu-Natal, Durban, 4041, South Africa
| | - Ian Mabbet
- Department of Chemistry, Swansea University, Swansea, UK
| | - Athanasios Kolios
- Naval Architecture, Ocean & Marine Engineering, University of Strathclyde, Glasgow, G1 1XQ, UK
| | - Chris Buckley
- Pollution Research Group, University of Kwazulu-Natal, Durban, 4041, South Africa
| |
Collapse
|
5
|
Karkehabadi S, Helmich KE, Kaper T, Hansson H, Mikkelsen NE, Gudmundsson M, Piens K, Fujdala M, Banerjee G, Scott-Craig JS, Walton JD, Phillips GN, Sandgren M. Biochemical characterization and crystal structures of a fungal family 3 β-glucosidase, Cel3A from Hypocrea jecorina. J Biol Chem 2014; 289:31624-37. [PMID: 25164811 DOI: 10.1074/jbc.m114.587766] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Cellulase mixtures from Hypocrea jecorina are commonly used for the saccharification of cellulose in biotechnical applications. The most abundant β-glucosidase in the mesophilic fungus Hypocrea jecorina is HjCel3A, which hydrolyzes the β-linkage between two adjacent molecules in dimers and short oligomers of glucose. It has been shown that enhanced levels of HjCel3A in H. jecorina cellulase mixtures benefit the conversion of cellulose to glucose. Biochemical characterization of HjCel3A shows that the enzyme efficiently hydrolyzes (1,4)- as well as (1,2)-, (1,3)-, and (1,6)-β-D-linked disaccharides. For crystallization studies, HjCel3A was produced in both H. jecorina (HjCel3A) and Pichia pastoris (Pp-HjCel3A). Whereas the thermostabilities of HjCel3A and Pp-HjCel3A are the same, Pp-HjCel3A has a higher degree of N-linked glycosylation. Here, we present x-ray structures of HjCel3A with and without glucose bound in the active site. The structures have a three-domain architecture as observed previously for other glycoside hydrolase family 3 β-glucosidases. Both production hosts resulted in HjCel3A structures that have N-linked glycosylations at Asn(208) and Asn(310). In H. jecorina-produced HjCel3A, a single N-acetylglucosamine is present at both sites, whereas in Pp-HjCel3A, the P. pastoris-produced HjCel3A enzyme, the glycan chains consist of 8 or 4 saccharides. The glycosylations are involved in intermolecular contacts in the structures derived from either host. Due to the different sizes of the glycosylations, the interactions result in different crystal forms for the two protein forms.
Collapse
Affiliation(s)
- Saeid Karkehabadi
- From the Department of Chemistry and Biotechnology, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-750 07 Uppsala, Sweden
| | - Kate E Helmich
- the Department of Energy Great Lakes Bioenergy Research Center and Department of Biochemistry, University of Wisconsin, Madison, Wisconsin 53706
| | - Thijs Kaper
- DuPont Industrial Biosciences, Palo Alto, California 94304
| | - Henrik Hansson
- From the Department of Chemistry and Biotechnology, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-750 07 Uppsala, Sweden
| | - Nils-Egil Mikkelsen
- From the Department of Chemistry and Biotechnology, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-750 07 Uppsala, Sweden
| | - Mikael Gudmundsson
- From the Department of Chemistry and Biotechnology, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-750 07 Uppsala, Sweden
| | - Kathleen Piens
- From the Department of Chemistry and Biotechnology, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-750 07 Uppsala, Sweden
| | | | - Goutami Banerjee
- the Department of Energy Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, Michigan 48824, and
| | - John S Scott-Craig
- the Department of Energy Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, Michigan 48824, and
| | - Jonathan D Walton
- the Department of Energy Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, Michigan 48824, and
| | - George N Phillips
- the Department of Energy Great Lakes Bioenergy Research Center and Department of Biochemistry, University of Wisconsin, Madison, Wisconsin 53706, the Department of Biochemistry and Cell Biology and Department of Chemistry, Rice University, Houston, Texas 77251
| | - Mats Sandgren
- From the Department of Chemistry and Biotechnology, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-750 07 Uppsala, Sweden,
| |
Collapse
|