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Jia HP, Wang XL, Liu ZW, Wu Y, Gao J, Hu Y, Chen Y, Huang C. Bacterial cellulose/gum Arabic composite production by in-situ modification from lavender residue hydrolysate. Int J Biol Macromol 2023; 253:126961. [PMID: 37722637 DOI: 10.1016/j.ijbiomac.2023.126961] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 09/12/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
In this study, bacterial cellulose/gum Arabic composite (BC/GA) was synthesized by in-situ modification from lavender residue hydrolysate for the first time. The in-situ modification with GA adding showed great beneficial effect for BC/GA synthesis. Both the product (BC or BC/GA) yield and the product (BC or BC/GA) production per sugars consumption increased greatly by the in-situ modification when compared with the fermentation without GA adding (2.90 g/L vs. 0.91 g/L, and 0.461 g/g vs. 0.138 g/g). It is hypothesized that the combination of BC and GA is the main mechanism for the beneficial effect of the in-situ modification, and the scanning electron microscope (SEM) images confirmed this hypothesis. GA adding showed little effect on the rheological properties of lavender residue hydrolysate, and this environment was suitable for the combination of BC and GA. The in-situ modification had an obvious influence on the crystallinity index and the thermal stability of BC/GA, but affected little on its functional groups and cellulose structural framework. Besides BC/GA synthesis and structure, the in-situ modification could also alter the texture properties of BC/GA. Overall, this study can offer some useful information for the biochemical conversion from green and cost-effective lavender residue hydrolysate to attractive biomaterial BC/GA.
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Affiliation(s)
- Huai-Peng Jia
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan 528458, People's Republic of China
| | - Xiao-Lin Wang
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan 528458, People's Republic of China
| | - Zhuo-Wei Liu
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan 528458, People's Republic of China
| | - Yi Wu
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan 528458, People's Republic of China
| | - Jing Gao
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan 528458, People's Republic of China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan 528437, People's Republic of China
| | - Yong Hu
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan 528458, People's Republic of China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan 528437, People's Republic of China
| | - Yun Chen
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan 528458, People's Republic of China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan 528437, People's Republic of China.
| | - Chao Huang
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan 528458, People's Republic of China; GDPU-HKU Zhongshan Biomedical Innovation Platform, Zhongshan 528437, People's Republic of China.
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Deng XR, Hu AW, Hu SQ, Yang WL, Sun C, Xiao SJ, Yang GP, Zheng QQ, Liang RP, Zhang L, Qiu JD. An in-situ strategy to construct uracil-conjugated covalent organic frameworks with tunable fluorescence/recognition characteristics for sensitive and selective Mercury(II) detection. Anal Chim Acta 2023; 1252:341056. [PMID: 36935154 DOI: 10.1016/j.aca.2023.341056] [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: 12/24/2022] [Revised: 02/25/2023] [Accepted: 03/05/2023] [Indexed: 03/08/2023]
Abstract
Previous researches of covalent organic frameworks (COFs) have shown their potential as fluorescent probes, but the regulation of their optical properties and recognition characteristics still remains a challenge, and most of reports required complicated post-decoration to improve the sensing performance. In this context, we propose a novel in-situ strategy to construct uracil-conjugated COFs and modulate their fluorescence properties for sensitive and selective mercury(II) detection. By using 1,3,6,8-tetrakis(4-formylphenyl)pyrene (TFPPy) and 1,3,6,8-tetrakis(4-aminophenyl)pyrene (TAPPy) as fundamental blocks and 5-aminouraci (5-AU) as the functional monomer, a series of COFs (Py-COFs and Py-U-COFs-1 to Py-U-COFs-5) with tunable fluorescence were solvothermally synthesized through an in-situ Schiff base reaction. The π-conjugated framework serves as a signal reporter, the evenly and densely distributed uracil acts as a mercury(II) receptor, and the regular pores (channels) make the rapid and sensitive detection of the mercury(II) possible. In this research, we manage to regulate the crystalline structure, the fluorescence properties, and the sensing performance of COFs by simply changing the molar ratio of precursors. We expect this research to open up a new strategy for effective and controllable construction of functionalized COFs for environmental analysis.
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Affiliation(s)
- Xi-Rui Deng
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, PR China
| | - A-Wei Hu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, PR China
| | - Sheng-Qian Hu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, PR China
| | - Wen-Li Yang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, PR China
| | - Chen Sun
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, PR China
| | - Sai-Jin Xiao
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology (ECUT), Nanchang, 330013, PR China
| | - Gui-Ping Yang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, PR China
| | - Qiong-Qing Zheng
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, PR China
| | - Ru-Ping Liang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, PR China
| | - Li Zhang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, PR China.
| | - Jian-Ding Qiu
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, PR China; State Key Laboratory of Nuclear Resources and Environment, East China University of Technology (ECUT), Nanchang, 330013, PR China.
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Gilmour KA, Aljannat M, Markwell C, James P, Scott J, Jiang Y, Torun H, Dade-Robertson M, Zhang M. Biofilm inspired fabrication of functional bacterial cellulose through ex-situ and in-situ approaches. Carbohydr Polym 2023; 304:120482. [PMID: 36641190 DOI: 10.1016/j.carbpol.2022.120482] [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: 09/12/2022] [Revised: 12/11/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
Bacterial cellulose (BC) has been explored for use in a range of applications including tissue engineering and textiles. BC can be produced from waste streams, but sustainable approaches are needed for functionalisation. To this end, BslA, a B. subtilis biofilm protein was produced recombinantly with and without a cellulose binding module (CBM) and the cell free extract was used to treat BC either ex-situ, through drip coating or in-situ, by incorporating during fermentation. The results showed that ex-situ modified BC increased the hydrophobicity and water contact angle reached 120°. In-situ experiments led to a BC film morphological change and mechanical testing demonstrated that addition of BslA with CBM resulted in a stronger, more elastic material. This study presents a nature inspired approach to functionalise BC using a biofilm hydrophobin, and we demonstrate that recombinant proteins could be effective and sustainable molecules for functionalisation of BC materials.
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Affiliation(s)
- Katie A Gilmour
- Hub for Biotechnology in the Built Environment, Department of Applied Sciences, Northumbria University at Newcastle, NE1 8ST, UK.
| | - Mahab Aljannat
- Hub for Biotechnology in the Built Environment, School of Architecture, Planning and Landscape, Newcastle University, NE1 7RU, UK.
| | - Christopher Markwell
- Department of Applied Sciences, Northumbria University at Newcastle, NE1 8ST, UK.
| | - Paul James
- Hub for Biotechnology in the Built Environment, Department of Applied Sciences, Northumbria University at Newcastle, NE1 8ST, UK.
| | - Jane Scott
- Hub for Biotechnology in the Built Environment, School of Architecture, Planning and Landscape, Newcastle University, NE1 7RU, UK.
| | - Yunhong Jiang
- Hub for Biotechnology in the Built Environment, Department of Applied Sciences, Northumbria University at Newcastle, NE1 8ST, UK.
| | - Hamdi Torun
- Department of Mathematics, Physics and Electrical Engineering, Faculty of Environment and Engineering, Northumbria University at Newcastle, NE1 8ST, UK.
| | - Martyn Dade-Robertson
- Hub for Biotechnology in the Built Environment, School of Architecture, Planning and Landscape, Newcastle University, NE1 7RU, UK.
| | - Meng Zhang
- Hub for Biotechnology in the Built Environment, Department of Applied Sciences, Northumbria University at Newcastle, NE1 8ST, UK.
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Ren J, Li C, Zhang S, Luo B, Tian M, Liu S, Wang L. Mass-producible in-situ amorphous solid/electrolyte interface with high ionic conductivity for long-cycling aqueous Zn-ion batteries. J Colloid Interface Sci 2023; 641:229-238. [PMID: 36933469 DOI: 10.1016/j.jcis.2023.03.080] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 12/08/2022] [Revised: 02/22/2023] [Accepted: 03/11/2023] [Indexed: 03/14/2023]
Abstract
Although aqueous Zn-ion batteries (aZIBs) have garnered significant attention, they are yet to be commercialized due to severe corrosion and dendrite growth on Zn anodes. In this work, an artificial solid-electrolyte interface (SEI) with amorphous structure was created in-situ on the anode by immersing Zn foil in ethylene diamine tetra(methylene phosphonic acid) sodium (EDTMPNA5) liquid. This facile and effective method provides the possibility for Zn anode protection in large-scale applications. Experimental results, combined with theoretical calculations, indicate that the artificial SEI remains intact and adheres tightly to the Zn substrate. The negatively-charged phosphonic acid groups and disordered inner structure offer adequate sites for rapid Zn2+ transference and facilitate [Zn(H2O)6]2+ desolvation during charging/discharging. Due to the synergistic effect of the aforementioned advantages, the artificial SEI endows high Coulombic efficiency (CE, 99.75%) and smooth Zn deposition/stripping under the SEI. The symmetric cell exhibits a long cycling life of over 2400 h with low-voltage hysteresis. Additionally, full cells with MVO cathodes demonstrate the superiority of the modified anodes. This work provides insight into the design of in-situ artificial SEI on the Zn anode and self-discharge suppression to expedite the practical application of aZIBs.
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Affiliation(s)
- Junfeng Ren
- State Key Laboratory Base of Eco-Chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, Qingdao University of Science and Technology, Qingdao 266042, China; College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Caixia Li
- State Key Laboratory Base of Eco-Chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Shenghao Zhang
- State Key Laboratory Base of Eco-Chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Bin Luo
- Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Minge Tian
- Scientific Green(shandong) Environmental Technology Co.Ltd, Jining Economic Development Zone, Shandong Province 272499, China
| | - Shiwei Liu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Lei Wang
- State Key Laboratory Base of Eco-Chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
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Zhan F, Liao X, Gao F, Qiu W, Wang Q. Electroactive crown ester-Cu 2+ complex with in-situ modification at molecular beacon probe serving as a facile electrochemical DNA biosensor for the detection of CaMV 35s. Biosens Bioelectron 2017; 92:589-595. [PMID: 27829553 DOI: 10.1016/j.bios.2016.10.055] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 10/10/2016] [Accepted: 10/19/2016] [Indexed: 01/01/2023]
Abstract
A novel electrochemical DNA biosensor has been facilely constructed by in-situ assembly of electroactive 4'-aminobenzo-18-crown-6-copper(II) complex (AbC-Cu2+) on the free terminal of the hairpin-structured molecule beacon. The 3'-SH modified molecule beacon probe was first immobilized on the gold electrode (AuE) surface through self-assembly chemistry of Au-S bond. Then the crow ester of AbC was covalently coupled with 5'-COOH on the molecule beacon, and served as a platform to attach the Cu2+ by coordination with ether bond (-O-) of the crown cycle. Thus, an electroactive molecule beacon-based biosensing interface was constructed. In comparison with conventional methods for preparation of electroactive molecule beacon, the approach presented in this work is much simpler, reagent- and labor-saving. Selectivity study shows that the in-situ fabricated electroactive molecule beacon remains excellent recognition ability of pristine molecule beacon probe to well differentiate various DNA fragments. The target DNA can be quantatively determined over the range from 0.10pM to 0.50nM. The detection limit of 0.060pM was estimated based on signal-to-noise ratio of 3. When the biosensor was applied for the detection cauliflower mosaic virus 35s (CaMV 35s) in soybean extraction samples, satisfactory results are achieved. This work opens a new strategy for facilely fabricating electrochemical sensing interface, which also shows great potential in aptasensor and immurosensor fabrication.
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Affiliation(s)
- Fengping Zhan
- College of Chemistry and Environment, Fujian Province Key Laboratory of Morden Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Xiaolei Liao
- College of Chemistry and Environment, Fujian Province Key Laboratory of Morden Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Feng Gao
- College of Chemistry and Environment, Fujian Province Key Laboratory of Morden Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Weiwei Qiu
- College of Chemistry and Environment, Fujian Province Key Laboratory of Morden Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Qingxiang Wang
- College of Chemistry and Environment, Fujian Province Key Laboratory of Morden Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, PR China.
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