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Li S, Wei W, Chi K, Ferguson CTJ, Zhao Y, Zhang KAI. Promoting Photocatalytic Direct C-H Difluoromethylation of Heterocycles using Synergistic Dual-Active-Centered Covalent Organic Frameworks. J Am Chem Soc 2024. [PMID: 38500309 DOI: 10.1021/jacs.3c12880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Difluoromethylation reactions are increasingly important for the creation of fluorine-containing heterocycles, which are core groups in a diverse range of biologically and pharmacologically active ingredients. Ideally, this typically challenging reaction could be performed photocatalytically under mild conditions. To achieve this separation of redox processes would be required for the efficient generation of difluoromethyl radicals and the reduction of oxygen. A covalent organic framework photocatalytic material was, therefore, designed with dual reactive centers. Here, anthracene was used as a reduction site and benzothiadiazole was used as an oxidation site, distributed in a tristyryl triazine framework. Efficient charge separation was ensured by the superior electron-donating and -accepting abilities of the dual centers, creating long-lived photogenerated electron-hole pairs. Photocatalytic difluoromethylation of 16 compounds with high yields and remarkable functional group tolerance was demonstrated; compounds included bioactive molecules such as xanthine and uracil. The structure-function relationship of the dual-active-center photocatalyst was investigated through electron spin resonance, femtosecond transient absorption spectroscopy, and density functional theory calculations.
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Affiliation(s)
- Sizhe Li
- Department of Materials Science, Fudan University, 200433 Shanghai, P. R. China
| | - Wenxin Wei
- Department of Materials Science, Fudan University, 200433 Shanghai, P. R. China
| | - Kai Chi
- Department of Materials Science, Fudan University, 200433 Shanghai, P. R. China
| | - Calum T J Ferguson
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
- School of Chemistry, University of Birmingham, University Road W, Birmingham B15 2TT, United Kingdom
| | - Yan Zhao
- Department of Materials Science, Fudan University, 200433 Shanghai, P. R. China
| | - Kai A I Zhang
- Department of Materials Science, Fudan University, 200433 Shanghai, P. R. China
- Max Planck Institute for Polymer Research, 55128 Mainz, Germany
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Chi K, Wang Z, Sun T, He P, Xiao F, Lu J, Wang S. Simultaneously Engineering the First and Second Coordination Shells of Single Iron Catalysts for Enhanced Oxygen Reduction. Small 2024:e2311817. [PMID: 38461534 DOI: 10.1002/smll.202311817] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/01/2024] [Indexed: 03/12/2024]
Abstract
The atomically dispersed Fe-N4 active site presents enormous potential for various renewable energy conversions. Despite its already remarkable catalytic performance, the local atomic microenvironment of each Fe atom can be regulated to further enhance its efficiency. Herein, a novel conceptual strategy that utilizes a simple salt-template polymerization method to simultaneously adjust the first coordination shell (Fe-N3 S1 ) and second coordination shell (C-S-C, a structure similar to thiophene) of Fe-N4 isolated atoms is proposed. Theoretical studies suggest that this approach can redistribute charge density in the MN4 moiety, lowering the d-band center of the metal site. This weakens the binding of oxygenated intermediates, enhancing oxygen reduction reaction (ORR) activity when compared to only implementing coordination shell regulation. Based on the above discovery, a single Fe atom electrocatalyst with the optimal Fe-N3 S1 -S active moiety incorporated in nitrogen, sulfur co-doped graphene (Fe-SAc/NSG) is designed and synthesized. The Fe-SAc/NSG catalyst exhibits excellent alkaline ORR activity, exceeding benchmark Pt/C and most Fe-SAc ORR electrocatalysts, as well as superior stability in Zn-air battery. This work aims to pave the way for creating highly active single metal atom catalysts through the localized regulation of their atomic structure.
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Affiliation(s)
- Kai Chi
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Department of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Zhuoping Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Department of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Tao Sun
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Peng He
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Fei Xiao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Department of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Jiong Lu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Shuai Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Department of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
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Linskey Dougherty M, Izer JM, Kunselman AR, Oh JS, Chi K, Chen C, Catchmark JM, Armen SB. Novel cross-linked polysaccharide-polyelectrolyte hemostatic foam improves survival compared to CombatGauze in swine femoral artery hemorrhage model. J Trauma Acute Care Surg 2023; 95:672-678. [PMID: 37478341 DOI: 10.1097/ta.0000000000004106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2023]
Abstract
BACKGROUND Uncontrolled hemorrhage is the leading cause of preventable death in combat and civilian trauma. Efficacious hemostatic agents in junctional hemorrhage can quell blood loss and improve survival. We hypothesized that a novel hemostatic foam of starch and chitosan would improve hemostasis, and thereby increase survival in a swine femoral artery hemorrhage model when compared with CombatGauze (CG). METHODS A novel hemostatic foam of starch and chitosan was created and modified during the study period. Thirty pigs (four excluded) were assigned to treatment using either foam version 1 (FV1, n = 9) or 2 (FV2, n = 8), or (n = 9) in a standard swine femoral artery hemorrhage model. Animals were observed for 150 minutes. Outcomes assessed included hemostasis, survival, posttreatment blood loss, IV fluid volume, and hemodynamic and laboratory trends. RESULTS Hemostasis prior to 150 minutes was similar with 44.4%, 77.8%, and 50% of swine treated with CG, FV1 and FV2, respectively (Kaplan-Meyer and log-rank test [KM-LR] p > 0.05). Survival to 150 minutes was improved in swine treated with FV1 (100%) compared with CG (55.6%) (KM-LR p = 0.02). Survival was similar between FV1 and FV2 (75%) (KM-LR p > 0.05), and between CG and FV2 (KM-LR p > 0.05). Using mixed model for longitudinal data, mean arterial pressure decreased significantly in CG- and FV2-treated swine, while there was no significant change in mean arterial pressure in FV1-treated swine. Trends in lactic acid, hematocrit, platelets, INR, and thrombelastography were more favorable for FV1 compared with CG. CONCLUSION In this preclinical study of junctional hemorrhage, survival was improved in swine treated with version 1 of a novel chitosan/starch foam compared with CG. Trends in hemodynamics and laboratory data were also more favorable in the FV1-treated swine. This novel hemostatic foam may be an effective alternative to current hemostatic agents.
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Affiliation(s)
- Melissa Linskey Dougherty
- From the Division of Trauma, Acute Care and Critical Care Surgery, Department of Surgery (M.L.D., J.S.O., S.B.A.), Department of Comparative Medicine (J.M.I.), Penn State University College of Medicine; Department of Public Health Sciences (A.R.K.), Penn State University; and Department of Agricultural and Biological Engineering (K.C., C.C., J.M.C.), Penn State University Colleges of Agricultural Sciences and Engineering, Hershey, Pennsylvania
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Liu L, Pang J, Qin D, Li R, Zou D, Chi K, Wu W, Rui H, Yu H, Zhu W, Liu K, Wu X, Wang J, Xu P, Song X, Cao Y, Wang J, Xu F, Xue L, Chen Y. Deubiquitinase OTUD5 as a Novel Protector against 4-HNE-Triggered Ferroptosis in Myocardial Ischemia/Reperfusion Injury. Adv Sci (Weinh) 2023; 10:e2301852. [PMID: 37552043 PMCID: PMC10558642 DOI: 10.1002/advs.202301852] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 07/13/2023] [Indexed: 08/09/2023]
Abstract
Despite the development of advanced technologies for interventional coronary reperfusion after myocardial infarction, a substantial number of patients experience high mortality due to myocardial ischemia-reperfusion (MI/R) injury. An in-depth understanding of the mechanisms underlying MI/R injury can provide crucial strategies for mitigating myocardial damage and improving patient survival. Here, it is discovered that the 4-hydroxy-2-nonenal (4-HNE) accumulates during MI/R, accompanied by high rates of myocardial ferroptosis. The loss-of-function of aldehyde dehydrogenase 2 (ALDH2), which dissipates 4-HNE, aggravates myocardial ferroptosis, whereas the activation of ALDH2 mitigates ferroptosis. Mechanistically, 4-HNE targets glutathione peroxidase 4 (GPX4) for K48-linked polyubiquitin-related degradation, which 4-HNE-GPX4 axis commits to myocyte ferroptosis and forms a positive feedback circuit. 4-HNE blocks the interaction between GPX4 and ovarian tumor (OTU) deubiquitinase 5 (OTUD5) by directly carbonylating their cysteine residues at C93 of GPX4 and C247 of OTUD5, identifying OTUD5 as the novel deubiquitinase for GPX4. Consequently, the elevation of OTUD5 deubiquitinates and stabilizes GPX4 to reverse 4-HNE-induced ferroptosis and alleviate MI/R injury. The data unravel the mechanism of 4-HNE in GPX4-dependent ferroptosis and identify OTUD5 as a novel therapeutic target for the treatment of MI/R injury.
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Wu Z, Liu W, Yang X, Li W, Zhao L, Chi K, Xiao X, Yan Y, Zeng W, Liu Y, Chen H, Zhao Y. An In-Situ Cyanidation Strategy To Access Tetracyanodiacenaphthoanthracene Diimides with High Electron Mobilities Exceeding 10 cm 2 V -1 s -1. Angew Chem Int Ed Engl 2023; 62:e202307695. [PMID: 37394618 DOI: 10.1002/anie.202307695] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/25/2023] [Accepted: 06/30/2023] [Indexed: 07/04/2023]
Abstract
A family of novel highly π-extended tetracyano-substituted acene diimides, named as tetracyanodiacenaphthoanthracene diimides (TCDADIs), have been synthesized using a facile four-fold Knoevenagel condensation strategy. Unlike conventional cyano substitution reactions, our approach enables access to a large π-conjugated backbone with the in-situ formation of four cyano substitutents at room temperature while avoiding extra cyano-functionalization reactions. TCDADIs decorated with different N-alkyl substituents present good solubility, near-coplanar backbones, good crystallinity, and low-lying lowest unoccupied molecular orbital energies of -4.33 eV, all of which contribute to desirable electron-transport performance when applied in organic field-effect transistors (OFET). The highest electron mobility of an OFET based on a 2-hexyldecyl-substituted TCDADI single crystal reaches 12.6 cm2 V-1 s-1 , which is not only among the highest values for the reported n-type organic semiconductor materials (OSMs) but also exceeds that of most n-type OSMs decorated with imide units.
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Affiliation(s)
- Zeng Wu
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Wentao Liu
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Xin Yang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Wenhao Li
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Lingli Zhao
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Kai Chi
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Xuetao Xiao
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Yongkun Yan
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Weixuan Zeng
- Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Yunqi Liu
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Huajie Chen
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China
| | - Yan Zhao
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
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Chang D, Zhu J, Sun Y, Chi K, Qiao Y, Wang T, Zhao Y, Liu Y, Lu X. From closed-shell edge-extended kekulenes to open-shell carbonylated cycloarene diradicaloid. Chem Sci 2023; 14:6087-6094. [PMID: 37293645 PMCID: PMC10246668 DOI: 10.1039/d3sc01295f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 05/13/2023] [Indexed: 06/10/2023] Open
Abstract
The precise synthesis of cycloarenes remains a challenging topic in both organic chemistry and materials science due to their unique fully fused macrocyclic π-conjugated structure. Herein, a series of alkoxyl- and aryl-cosubstituted cycloarenes (kekulene and edge-extended kekulene derivatives, K1-K3) were conveniently synthesized and an unexpected transformation of the anthryl-containing cycloarene K3 into a carbonylated cycloarene derivative K3-R was disclosed by controlling the temperature and gas atmosphere of the Bi(OTf)3-catalyzed cyclization reaction. All their molecular structures were confirmed by single-crystal X-ray analysis. The crystallographic data, NMR measurements, and theoretical calculations reveal their rigid quasi-planar skeletons, dominant local aromaticities, and decreasing intermolecular π-π stacking distance with extension of the two opposite edges. The much lower oxidation potential for K3 by cyclic voltammetry explains its unique reactivity. Moreover, carbonylated cycloarene derivative K3-R shows a remarkable stability, large diradical character, a small singlet-triplet energy gap (ΔES-T = -1.81 kcal mol-1), and weak intramolecular spin-spin coupling. Most importantly, it represents the first example of carbonylated cycloarene diradicaloids as well as the first example of radical-acceptor cycloarenes and will shed some light on synthesis of extended kekulenes and conjugated macrocyclic diradicaloids and polyradicaloids.
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Affiliation(s)
- Dongdong Chang
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200433 China
| | - Jiangyu Zhu
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200433 China
| | - Yutao Sun
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200433 China
| | - Kai Chi
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200433 China
| | - Yanjun Qiao
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200433 China
| | - Teng Wang
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200433 China
| | - Yan Zhao
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200433 China
| | - Yunqi Liu
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200433 China
| | - Xuefeng Lu
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University Shanghai 200433 China
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Wang Z, Chi K, Yang S, Xiao J, Xiao F, Zhao X, Wang S. Optimizing the Electronic Structure of Atomically Dispersed Ru Sites with CoP for Highly Efficient Hydrogen Evolution in both Alkaline and Acidic Media. Small 2023:e2301403. [PMID: 37183299 DOI: 10.1002/smll.202301403] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/20/2023] [Indexed: 05/16/2023]
Abstract
Developing efficient and stable electrocatalysts for hydrogen evolution reaction (HER) over a wide pH range and industrial large-scale hydrogen production is critical and challenging. Here, a tailoring strategy is developed to fabricate an outstanding HER catalyst in both acidic and alkaline electrolytes containing high-density atomically dispersed Ru sites anchored in the CoP nanoparticles supported on carbon spheres (NC@RuSA -CoP). The obtained NC@RuSA -CoP catalyst exhibits excellent HER performance with overpotentials of only 15 and 13 mV at 10 mA cm-2 in 1 m KOH and 0.5 m H2 SO4 , respectively. The experimental results and theoretical calculations indicate that the strong interaction between the Ru site and the CoP can effectively optimize the electronic structure of Ru sites to reduce the hydrogen binding energy and the water dissociation energy barrier. The constructed alkaline anion exchange membrane water electrolyze (AAEMWE) demonstrates remarkable durability and an industrial-level current density of 1560 mA cm-2 at 1.8 V. This strategy provides a new perspective on the design of Ru-based electrocatalysts with suitable intermediate adsorption strengths and paves the way for the development of highly active electrocatalysts for industrial-scale hydrogen production.
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Affiliation(s)
- Zhuoping Wang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Kai Chi
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Shengxiong Yang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Junwu Xiao
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Fei Xiao
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Xiaoxu Zhao
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Shuai Wang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
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8
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Zhang N, Li W, Zhu J, Wang T, Zhang R, Chi K, Liu Y, Zhao Y, Lu X. Periphery Fusion Strategy of a Carbazole-Based Macrocycle toward Coplanar N-Heterocycloarene for High-Mobility Single-Crystal Transistors. Adv Mater 2023; 35:e2300094. [PMID: 36807375 DOI: 10.1002/adma.202300094] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/10/2023] [Indexed: 05/19/2023]
Abstract
Designing (hetero)cycloarenes through the modifications of the π-topology and molecular packing of organic semiconductors has recently garnered considerable attention. However, their applications as an organic active layer in field-effect transistors are very limited, and the obtained hole carrier mobilities are less than 1 cm2 V-1 s-1 . In this work, a novel alkyl-substituted coplanar N-heterocycloarene (FM-C4) containing four carbazole units is successfully synthesized in crystalline form. As compared to the corresponding single-bond-linked carbazole-based macrocycle M-C4, it is found that the periphery fusion strategy greatly changes the electronic structures, energy levels, photophysical properties, host-guest interactions with fullerenes, and molecular crystal stacking motifs. In particular, the fully fused N-heterocycloarene FM-C4 exhibits a herringbone packing structure with an unusual long-range π-π overlap distance as low as 3.19 Å, whereas the single crystal of M-C4 demonstrates no π-π interactions. As a consequence, FM-C4 in single-crystal transistors displays the highest hole mobility of 2.06 cm2 V-1 s-1 , significantly outperforming M-C4 and all the reported (hetero)cycloarenes and suggesting the high potential of (hetero)cycloarenes for organic electronic applications.
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Affiliation(s)
- Ning Zhang
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| | - Wenhao Li
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| | - Jiangyu Zhu
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| | - Teng Wang
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| | - Rong Zhang
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| | - Kai Chi
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| | - Yunqi Liu
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| | - Yan Zhao
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
| | - Xuefeng Lu
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
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Chi K, He J, Lin WS, Bokhari SMQ, Catchmark JM. Electrostatically Complexed Natural Polysaccharides as Aqueous Barrier Coatings for Sustainable and Recyclable Fiber-Based Packaging. ACS Appl Mater Interfaces 2023; 15:12248-12260. [PMID: 36848253 DOI: 10.1021/acsami.2c17886] [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] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Driven by the ever-growing awareness of sustainability and circular economy, renewable, biodegradable, and recyclable fiber-based packaging materials are emerging as alternatives to fossil-derived, nonbiodegradable single-use plastics for the packaging industry. However, without functional barrier coatings, the water/moisture vulnerability and high permeability of fiber-based packaging significantly restrain its broader application as primary packaging for food, beverages, and drugs. Herein, we develop waterborne complex dispersion barrier coatings consisting of natural, biodegradable polysaccharides (i.e., chitosan and carboxymethyl cellulose) through a scalable, one-pot mechanochemical pathway. By tailoring the electrostatic complexation, the key element to form a highly crosslinked and interpenetrated polymer network structure, we formulate complex dispersion barrier coatings with excellent film-forming property and adaptable solid-viscosity profiles suitable for paperboard and molded pulp substrates. Our complex dispersions enable the formation of a uniform, defect-free, and integrated coating layer, leading to a remarkable oil and grease barrier and efficient water/moisture sensitivity reduction while still exhibiting excellent recyclability profile of the resulting fiber-based substrates. This natural, biorenewable, and repulpable barrier coating is a promising candidate to serve as a sustainable option for fiber-based packaging intended for the food and food service packaging industry.
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Affiliation(s)
- Kai Chi
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Jiamu He
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Wei-Shu Lin
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Syed M Q Bokhari
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Jeffrey M Catchmark
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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10
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Lv Q, Chi K, Shi X, Liu M, Li X, Zhou C, Shi L, Fan H, Liu H, Liu J, Zhang Y, Wang S, Wang L, Wang Z. Nanozyme-like single-atom catalyst combined with artesunate achieves photothermal-enhanced nanocatalytic therapy in the near-infrared biowindow. Acta Biomater 2023; 158:686-697. [PMID: 36623782 DOI: 10.1016/j.actbio.2022.12.071] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 07/21/2022] [Revised: 12/26/2022] [Accepted: 12/31/2022] [Indexed: 01/09/2023]
Abstract
Selectively generating active free radical (AFR) in tumor microenvironment (TME) can promote irreversible oxidation of biomolecules and damage tumor cells, resulting in effective tumor inhibition. However, therapeutic efficacy of AFR-based tumor suppression approaches is often limited by insufficient amount of H2O2 or O2 within TME. To overcome this obstacle, we design a pH/photothermal dual responsive nanosystem (PFeSA@AS) for combined photothermal and nanocatalytic therapy in the near-infrared biowindow. Here the Fe single-atom dispersed N, S-doped carbon nanosheets (FeSA) nanozyme is dispersed by phospholipid-polyethylene glycol-amine (DSPE-PEG-NH2), and further loads artesunate (AS) via an amide reaction. Upon 808-nm laser irradiation in TME, the AS is released and further be catalyzed by the FeSA nanozyme to produce cytotoxic C-centered AFRs, and further be accelerated due to the photothermal conversion performance of FeSA (23.35%). The nanocatalytic process of FeSA nanozyme is realized by density functional theory (DFT). The tumor inhibition rates of a CT26 xenograft model is 92% through a photothermal-enhanced nanocatalytic synergistic therapy, and negligible systematic toxicity is observed. This work offers a potential paradigm of multifunctional single atomic catalysts (SACs) for enhancing tumor nanocatalytic therapy. STATEMENT OF SIGNIFICANCE: We designed a pH/photothermal dual responsive nanosystem (PFeSA@AS) for nanocatalytic therapy: (1) the nanosystem responsively releases AS under 808-nm laser irradiation in TME; (2) FeSA in the nanosystem can act as heme mimetic to convert AS into high cytotoxic C-centered free radicals for nanocatalytic therapy; (3) the photothermal conversion performance of FeSA further enhances the catalytic process to yield abundant AFR. Both in vitro and in vivo results demonstrate that this nanosystem can efficiently inhibit tumor growth through a photothermal-enhanced nanocatalytic synergistic therapy.
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Affiliation(s)
- Qiying Lv
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Kai Chi
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Xiaolei Shi
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Miaodeng Liu
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaoye Li
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Cheng Zhou
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Lin Shi
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Huiling Fan
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Huan Liu
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jia Liu
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yan Zhang
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shuai Wang
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
| | - Lin Wang
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Zheng Wang
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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11
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Joshi R, Sebat N, Chi K, Khan M, Johnson KI, Alhamzani AG, Habib MA, Lindstrom T, Hsiao BS. Low Fouling Nanostructured Cellulose Membranes for Ultrafiltration in Wastewater Treatment. Membranes (Basel) 2023; 13:membranes13020147. [PMID: 36837650 PMCID: PMC9964168 DOI: 10.3390/membranes13020147] [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] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 06/01/2023]
Abstract
Ultrafiltration (UF) is a common technique used in wastewater treatments. However, the issue of membrane fouling in UF can greatly hinder the effectiveness of the treatments. This study demonstrated a low-fouling composite cellulose membrane system based on microfibrillated cellulose (MFC) and silica nanoparticle additives. The incorporation of 'non-spherical' silica nanoparticles was found to exhibit better structural integration in the membrane (i.e., minimal aggregation of silica nanoparticles in the membrane scaffold) as compared to spherical silica. The resulting composite membranes were tested for UF using local wastewater, where the best-performing membrane exhibited higher permeation flux than commercial polyvinylidene difluoride (PVDF) and polyether sulfone (PES) membranes while maintaining a high separation efficiency (~99.6%) and good flux recovery ratio (>90%). The analysis of the fouling behavior using different models suggested that the processes of cake layer formation and pore-constriction were probably two dominant fouling mechanisms, likely due to the presence of humic substances in wastewater. The demonstrated cellulose composite membrane system showed low-fouling and high restoration capability by a simple hydraulic cleaning method due to the super hydrophilic nature of the cellulose scaffold containing silica nanoparticles.
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Affiliation(s)
- Ritika Joshi
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, NY 11794, USA
| | - Nilay Sebat
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, NY 11794, USA
| | - Kai Chi
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, NY 11794, USA
| | - Madani Khan
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, NY 11794, USA
| | - Ken I. Johnson
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, NY 11794, USA
| | - Abdulrahman G. Alhamzani
- Department of Chemistry, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - M. A. Habib
- Department of Chemistry, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Tom Lindstrom
- KTH Royal Institute of Technology, 100 44 Stockholm, Sweden
| | - Benjamin S. Hsiao
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, NY 11794, USA
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12
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Zhang N, Yang L, Li W, Zhu J, Chi K, Chang D, Qiao Y, Wang T, Zhao Y, Lu X, Liu Y. Alkyl-Substituted N,S-Embedded Heterocycloarenes with a Planar Aromatic Configuration for Hosting Fullerenes and Organic Field-Effect Transistors. J Am Chem Soc 2022; 144:21521-21529. [DOI: 10.1021/jacs.2c08276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ning Zhang
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Longfei Yang
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Wenhao Li
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Jiangyu Zhu
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Kai Chi
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Dongdong Chang
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Yanjun Qiao
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Teng Wang
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Yan Zhao
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Xuefeng Lu
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Yunqi Liu
- Department of Materials Science, Fudan University, Shanghai 200433, China
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13
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Chi K, Wu Y, Wang X, Zhang Q, Gao W, Yang L, Chen X, Chang D, Zhang Y, Shen T, Lu X, Zhao Y, Liu Y. Single Atom Catalysts with Out-of-Plane Coordination Structure on Conjugated Covalent Organic Frameworks. Small 2022; 18:e2203966. [PMID: 36135721 DOI: 10.1002/smll.202203966] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/18/2022] [Indexed: 06/16/2023]
Abstract
Adjusting the local coordination environment of single-atom electrocatalysts is a viable way to improve catalytic performance. The diversity of coordination geometric structures is limited to the traditional in-plane configuration, with only a little consideration paid to out-of-plane configurations due to the lack of suitable carriers and fabrication methods. This study reports out-of-plane coordination of Co-based single-atom catalysts mediated by the conjugated bipyridine-rich covalent organic framework (COF). The bipyridine nitrogen on the COF layer backbone of these catalysts serves as the linker center for cobalt sites anchoring, while the complementary moieties are coordinated at the other side of the Co metal and reside beyond the COF backbone plane, thus yielding out-of-plane coordination. The electrochemical experiments and density functional theory calculations reveal that catalysts with multiple out-of-plane coordinations exhibit different electrocatalytic oxygen evolution activities and catalytic pathways. The out-of-plane coordination enabled by COFs provides a strategy for designing single-atom electrocatalysts, expanding the application of COFs in the field of electrocatalysis.
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Affiliation(s)
- Kai Chi
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Yangjiang Wu
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Xuejun Wang
- Department of Macromolecular Science, Fudan University, Shanghai, 200433, P. R. China
| | - Qingsong Zhang
- Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Wenqiang Gao
- Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Longfei Yang
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Xin Chen
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Dongdong Chang
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Yu Zhang
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Tao Shen
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Xuefeng Lu
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Yan Zhao
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Yunqi Liu
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
- Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, P. R. China
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14
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Yang J, Yang X, Chen J, Zhao Z, Jiang Y, Zhu M, Li J, Chi K, Wang S, Guo Y, Liu Y. A multihalogenation strategy for ambipolar transistors and high-gain inverters with good noise margin. Sci Bull (Beijing) 2022; 67:1849-1853. [PMID: 36546297 DOI: 10.1016/j.scib.2022.08.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/13/2022] [Accepted: 08/24/2022] [Indexed: 01/07/2023]
Affiliation(s)
- Jie Yang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China; School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xueli Yang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China
| | - Jinyang Chen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China
| | - Zhiyuan Zhao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China
| | - Yaqian Jiang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China
| | - Mingliang Zhu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China
| | - Junyu Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China
| | - Kai Chi
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Shuai Wang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yunlong Guo
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China.
| | - Yunqi Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China.
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15
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Hospodiuk-Karwowski M, Chi K, Pritchard J, Catchmark JM. Vascularized pancreas-on-a-chip device produced using a printable simulated extracellular matrix. Biomed Mater 2022; 17. [PMID: 36001993 DOI: 10.1088/1748-605x/ac8c74] [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: 04/20/2022] [Accepted: 08/24/2022] [Indexed: 11/12/2022]
Abstract
The extracellular matrix (ECM) influences cellular behavior, function, and fate. The ECM surrounding Langerhans islets has not been investigated in detail to explain its role in the development and maturation of pancreatic β-cells. Herein, a complex combination of the simulated ECM (sECM) has been examined with a comprehensive analysis of cell response and a variety of controls. The most promising results were obtained from group containing fibrin, collagen type I, Matrigel®, hyaluronic acid, methylcellulose, and two compounds of functionalized, ionically crosslinking bacterial cellulose (sECMbc). Even though the cell viability was not significantly impacted, the performance of group of sECMbc showed 2 to 4x higher sprouting number and length, 2 to 4x higher insulin secretion in static conditions, and 2 to 10x higher gene expression of VEGF-A, Endothelin-1, and NOS3 than the control group of fibrin matrix (sECMf). Each material was tested in a hydrogel-based, perfusable, pancreas-on-a-chip device and the best group - sECMbc has been tested with the drug Sunitinib to show the extended possibilities of the device for both diabetes-like screening as well as PDAC chemotherapeutics screening for potential personal medicine approach. It proved its functionality in 7 days dynamic culture and is suitable as a physiological tissue model. Moreover, the device with the pancreatic-like spheroids was 3D bioprintable and perfusable.
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Affiliation(s)
- Monika Hospodiuk-Karwowski
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, 201 Old Main, University Park, Pennsylvania, 16802-1503, UNITED STATES
| | - Kai Chi
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, 201 Old Main, University Park, Pennsylvania, 16802-1503, UNITED STATES
| | - Justin Pritchard
- Biomedical Engineering Department, The Pennsylvania State University, 201 Old Main, University Park, Pennsylvania, 16802-1503, UNITED STATES
| | - Jeffrey M Catchmark
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, 201 Old Main, University Park, Pennsylvania, 16802-1503, UNITED STATES
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16
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Abstract
Nanocelluloses (NC) are nature-based sustainable biomaterials, which not only possess cellulosic properties but also have the important hallmarks of nanomaterials, such as large surface area, versatile reactive sites or functionalities, and scaffolding stability to host inorganic nanoparticles. This class of nanomaterials offers new opportunities for a broad spectrum of applications for clean water production that were once thought impractical. This Review covers substantial discussions based on evaluative judgments of the recent literature and technical advancements in the fields of coagulation/flocculation, adsorption, photocatalysis, and membrane filtration for water decontamination through proper understanding of fundamental knowledge of NC, such as purity, crystallinity, surface chemistry and charge, suspension rheology, morphology, mechanical properties, and film stability. To supplement these, discussions on low-cost and scalable NC extraction, new characterizations including solution small-angle X-ray scattering evaluation, and structure-property relationships of NC are also reviewed. Identifying knowledge gaps and drawing perspectives could generate guidance to overcome uncertainties associated with the adaptation of NC-enabled water purification technologies. Furthermore, the topics of simultaneous removal of multipollutants disposal and proper handling of post/spent NC are discussed. We believe NC-enabled remediation nanomaterials can be integrated into a broad range of water treatments, greatly improving the cost-effectiveness and sustainability of water purification.
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Affiliation(s)
- Rasel Das
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Tom Lindström
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States.,KTH Royal Institute of Technology, Stockholm 100 44, Sweden
| | - Priyanka R Sharma
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Kai Chi
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Benjamin S Hsiao
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
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17
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Kim B, Park J, Kim J, Park J, Chi K, Kim J. P-77 Risk factors and clinical outcomes of post-gastrectomy sarcopenia newly developed after curative resection for gastric cancer. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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18
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Xu R, Chi K, Wu J, Wang L, Lin J, Wang S. A novel metal–organic framework‐derived NiSe
2
/ZnSe‐NC as advanced anode materials for high‐performance asymmetric supercapacitors. Electrochemical Science Advances 2021. [DOI: 10.1002/elsa.202100047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Rui Xu
- Department of Materials Science Fudan University Shanghai China
| | - Kai Chi
- Department of Materials Science Fudan University Shanghai China
| | - Jihuai Wu
- Engineering Research Center of Environment‐Friendly Functional Materials College of Materials Science and Engineering, Institute of Materials Physical Chemistry Huaqiao University Xiamen China
| | - Liangjie Wang
- Department of Materials Science Fudan University Shanghai China
| | - Jianming Lin
- Engineering Research Center of Environment‐Friendly Functional Materials College of Materials Science and Engineering, Institute of Materials Physical Chemistry Huaqiao University Xiamen China
| | - Shuai Wang
- Department of Materials Science Fudan University Shanghai China
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19
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Wu J, Sun W, Yang X, Wang H, Liu X, Chi K, Zhou L, Huang X, Zhao S, Ding T, Meng B, Lin D. FP07.03 Landscape Heterogeneity of PD-L1 Expression and Immune Cells Predicts Prognosis of Metastatic Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Guo W, Chi K, Yan J, Bao L, Wang S, Liu Y. Integrated ionic sieving channels from engineering ordered monolayer two-dimensional crystallite structures. Sci Bull (Beijing) 2020; 65:1356-1362. [PMID: 36659214 DOI: 10.1016/j.scib.2020.04.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 01/14/2020] [Revised: 03/03/2020] [Accepted: 03/24/2020] [Indexed: 02/06/2023]
Abstract
Atomically thin solid-state channels enabling selective molecular transport could potentially be used in a variety of separation and energy conversion applications. The density of channels, their height, distance and edge structure are the key factors that dramatically impact the selective transport performance. However, such channels with small constrictions and atomic precision have been limited to proof-of-concept demonstrations based on microscale two-dimensional (2D) crystal stripes. Here, we report the engineering of highly ordered, scalable monolayer graphene crystallite arrays by chemical vapor deposition (CVD) method with a modified anisotropic etching approach. The size, shape, distance and edge structure of the graphene crystallite arrays in a large area could be delicately controlled through tailoring the synthetic parameters. This array structure can act as pillars to prop up a smooth single-crystal graphene film, and the fabricated integrated angstrom-size (3.4 Å) channels allow water transport but exclude hydrated ions, demonstrating potential in selective ionic sieving and nanofiltration practice.
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Affiliation(s)
- Wei Guo
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Kai Chi
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jiahao Yan
- Institute of Physics, Chinese Academy of Sciences, Beijing 100010, China
| | - Lihong Bao
- Institute of Physics, Chinese Academy of Sciences, Beijing 100010, China
| | - Shuai Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; Department of Materials Science, Fudan University, Shanghai 200433, China.
| | - Yunqi Liu
- Department of Materials Science, Fudan University, Shanghai 200433, China.
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21
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Zhang M, Chen L, Chi K, Xu L, Li Y. Necrotizing fasciitis complicated with multiple organ dysfunction syndrome after breast augmentation with fat from the waist and lower extremities: a case report. J Int Med Res 2020; 48:300060520937623. [PMID: 32692272 PMCID: PMC7375722 DOI: 10.1177/0300060520937623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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] [Indexed: 11/16/2022] Open
Abstract
Necrotizing fasciitis (NF) is a rapidly progressing soft tissue infection with a mortality rate as high as 30% to 50%. However, the incidence rate of NF after liposuction is extremely low. In the current case report, we describe a woman with NF who developed multiple organ dysfunction syndrome (MODS) after fat acquisition. The aim of this paper is to summarize the management of these patients. After debridement and drainage, correction of multiple organ failure, and plastic surgery, the patient’s organ and lower limb functions improved to a normal level. Early diagnosis, early operative treatment, and correction of systemic abnormalities are the keys to successful recovery of patients with NF complicated with MODS after liposuction.
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Affiliation(s)
- Mingjun Zhang
- Plastic and Cosmetic Department, Zhengzhou First People's Hospital, Zhengzhou, China
| | - Longjin Chen
- Plastic and Cosmetic Department, Zhengzhou First People's Hospital, Zhengzhou, China
| | - Kai Chi
- Plastic and Cosmetic Department, Zhengzhou First People's Hospital, Zhengzhou, China
| | - Liyan Xu
- Department of Blood Transfusion, PLA Strategic Support Force Characteristic Medical Center, Beijing, China
| | - Yonglin Li
- Plastic and Cosmetic Department, Zhengzhou First People's Hospital, Zhengzhou, China
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22
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23
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Yuan H, Zhao J, Wang Q, Manoj D, Zhao A, Chi K, Ren J, He W, Zhang Y, Sun Y, Xiao F, Wang S. Hierarchical Core-Shell Structure of 2D VS 2@VC@N-Doped Carbon Sheets Decorated by Ultrafine Pd Nanoparticles: Assembled in a 3D Rosette-like Array on Carbon Fiber Microelectrode for Electrochemical Sensing. ACS Appl Mater Interfaces 2020; 12:15507-15516. [PMID: 32083465 DOI: 10.1021/acsami.9b21436] [Citation(s) in RCA: 16] [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] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The development of two-dimensional (2D) nanohybrid materials with heterogeneous components in nanoscale and three-dimensional (3D) well-ordered assembly in microscale has been regarded as an effective way to improve their overall performances by the synergistic coupling of the optimized structure and composition. In this work, we reported the design and synthesis of a new type of hierarchically core-shell structure of 2D VS2@VC@N-doped carbon (NC) sheets decorated by ultrafine Pd nanoparticles (PdNPs), which were vertically grown on carbon fiber (CF) and assembled into a unique 3D rosette-like array. The resultant VS2@VC@NC-PdNPs modified CF microelectrode integrated the structural and electrochemical properties of the heterogeneous hybridization of core-shell VS2@VC@NC-PdNPs sheets with a unique rosette-like array structure, and gave rise to a significant improvement in terms of electron transfer ability, electrocatalytic activity, stability, and biocompatibility. Under the optimized conditions, the VS2@VC@NC-PdNPs modified CF microelectrode demonstrated excellent electrochemical sensing performance towards biomarker hydrogen peroxide (H2O2) including a high sensitivity of 152.7 μA cm-2 mM-1, a low detection limit of 50 nM (a signal-to-noise ratio of 3:1), as well as good reproducibility and anti-interference ability, which could be used for the real-time in situ electrochemical detection of H2O2 in live cancer cells and cancer tissue. The remarkable performances of the proposed nanohybrid microelectrode will have a profound impact on the design of diverse 2D layered materials as a promising candidate for electrochemical biosensing applications.
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Affiliation(s)
- Hao Yuan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jianquan Zhao
- Analytical and Testing Center, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Qijun Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Devaraj Manoj
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Anshun Zhao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Kai Chi
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jinghua Ren
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Wenshan He
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yan Zhang
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yimin Sun
- Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Fei Xiao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Shuai Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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24
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Chi K, Zhang X, Tian X, Zhang Z, Wu Z, Xiao F, Wang S. High‐Performance Flexible Asymmetric Supercapacitors Facilitated by N‐doped Porous Vertical Graphene Nanomesh Arrays. ChemElectroChem 2020. [DOI: 10.1002/celc.201902040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kai Chi
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Xiangyu Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Xin Tian
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Zheye Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Zhu Wu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Fei Xiao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Shuai Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
- Flexible Electronics Research Center (FERC), School of Mechanical Science and Engineering, DepartmentHuazhong University of Science and Technology Wuhan 430074 China
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Chi K, Zhang X, Tian X, Zhang Z, Wu Z, Xiao F, Wang S. Front Cover: High‐Performance Flexible Asymmetric Supercapacitors Facilitated by N‐doped Porous Vertical Graphene Nanomesh Arrays (ChemElectroChem 2/2020). ChemElectroChem 2020. [DOI: 10.1002/celc.201902041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kai Chi
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Xiangyu Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Xin Tian
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Zheye Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Zhu Wu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Fei Xiao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Shuai Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
- Flexible Electronics Research Center (FERC), School of Mechanical Science and Engineering, DepartmentHuazhong University of Science and Technology Wuhan 430074 China
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Chi K, Tian X, Wang Q, Zhang Z, Zhang X, Zhang Y, Jing F, Lv Q, Yao W, Xiao F, Wang S. Oxygen vacancies engineered CoMoO4 nanosheet arrays as efficient bifunctional electrocatalysts for overall water splitting. J Catal 2020. [DOI: 10.1016/j.jcat.2019.10.025] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sandhu S, Hussain M, Mateo J, Fizazi K, Saad F, Shore N, Chi K, Sartor O, Agarwal N, Olmos D, Thiery-Vuillemin A, Twardowski P, Mehra N, Goessl C, Kang J, Burgents J, Wu W, Kohlmann A, Adelman C, de Bono J. PROfound: Phase III study of olaparib versus enzalutamide or abiraterone for metastatic castration-resistant prostate cancer (mCRPC) with homologous recombination repair (HRR) gene alterations. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz446.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Chi K, Zhang X, Tian X, Zhang Z, Wu Z, Xiao F, Wang S. High‐Performance Flexible Asymmetric Supercapacitors Facilitated by N‐doped Porous Vertical Graphene Nanomesh Arrays. ChemElectroChem 2019. [DOI: 10.1002/celc.201901499] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Kai Chi
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Xiangyu Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Xin Tian
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Zheye Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Zhu Wu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Fei Xiao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
| | - Shuai Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 China
- Flexible Electronics Research Center (FERC), School of Mechanical Science and Engineering, DepartmentHuazhong University of Science and Technology Wuhan 430074 China
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van der Heijden M, Powles T, Petrylak D, de Wit R, Chi K, Necchi A, Sternberg C, Matsubara N, Nishiyama H, Castellano D, Hussain S, Bamias A, Hozak R, Rhodes R, Xia M, Rasmussen E, Aggarwal A, Wijayawardana S, Bell-McGuinn K, Drakaki A. Biomarker analyses of ramucirumab in patients with platinum refractory urothelial cancer from RANGE, a global, randomized, double-blind, phase III study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz249.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Jing F, Lv Q, Wang Q, Chi K, Xu Z, Wang X, Wang S. Self-supported 3D porous N-Doped nickel selenide electrode for hydrogen evolution reaction over a wide range of pH. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.02.116] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Chen Z, Liu C, Zhao X, Yan H, Li J, Lyu P, Du Y, Xi S, Chi K, Chi X, Xu H, Li X, Fu W, Leng K, Pennycook SJ, Wang S, Loh KP. Promoted Glycerol Oxidation Reaction in an Interface-Confined Hierarchically Structured Catalyst. Adv Mater 2019; 31:e1804763. [PMID: 30412314 DOI: 10.1002/adma.201804763] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 10/08/2018] [Indexed: 06/08/2023]
Abstract
Confined catalysis in a 2D system is of particular interest owing to the facet control of the catalysts and the anisotropic kinetics of reactants, which suppress side reactions and improve selectivity. Here, a 2D-confined system consisting of intercalated Pt nanosheets within few-layered graphene is demonstrated. The strong metal-substrate interaction between the Pt nanosheets and the graphene leads to the quasi-2D growth of Pt with a unique (100)/(111)/(100) faceted structure, thus providing excellent catalytic activity and selectivity toward one-carbon (C1) products for the glycerol oxidation reaction. A hierarchically porous graphene architecture, grown on carbon cloth, is used to fabricate the confined catalyst bed in order to enhance the mass-diffusion limitation in interface-confined reactions. Owing to its unique 3D porous structure, this graphene-confined Pt catalyst exhibits an extraordinary mass activity of 2910 mA mgPt -1 together with a formate selectivity of 79% at 60 °C. This paves the way toward rational designs of heterogeneous catalysts for energy-related applications.
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Affiliation(s)
- Zhongxin Chen
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Centre for Life Sciences, #05-01, 28 Medical Drive, Singapore, 117456, Singapore
| | - Cuibo Liu
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Xiaoxu Zhao
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Centre for Life Sciences, #05-01, 28 Medical Drive, Singapore, 117456, Singapore
| | - Huan Yan
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Jing Li
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Pin Lyu
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Yonghua Du
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore, 627833, Singapore
| | - Shibo Xi
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore, 627833, Singapore
| | - Kai Chi
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Xiao Chi
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Haisen Xu
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Xing Li
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Centre for Life Sciences, #05-01, 28 Medical Drive, Singapore, 117456, Singapore
| | - Wei Fu
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Kai Leng
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Stephen J Pennycook
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Centre for Life Sciences, #05-01, 28 Medical Drive, Singapore, 117456, Singapore
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Shuai Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Kian Ping Loh
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Centre for Life Sciences, #05-01, 28 Medical Drive, Singapore, 117456, Singapore
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Chi K, Lay J, Graf P, Mahmood A, Hoppmann C. LINKS BETWEEN EVERYDAY INTERGENERATIONAL PROSOCIAL BEHAVIOUR AND EMOTIONAL WELL-BEING IN OLD AGE. Innov Aging 2018. [DOI: 10.1093/geroni/igy031.3579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- K Chi
- University of British Columbia
| | - J Lay
- University of British Columbia
| | - P Graf
- University of British Columbia
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Chi K, Catchmark JM. Sustainable Development of Polysaccharide Polyelectrolyte Complexes as Eco-Friendly Barrier Materials for Packaging Applications. Green Polymer Chemistry: New Products, Processes, and Applications 2018. [DOI: 10.1021/bk-2018-1310.ch008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Kai Chi
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, 226 Agricultural Engineering Building, Shortlidge Road, University Park, Pennsylvania 16802, United States
| | - Jeffrey M. Catchmark
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, 226 Agricultural Engineering Building, Shortlidge Road, University Park, Pennsylvania 16802, United States
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Bernstein V, Ellard SL, Dent SF, Tu D, Mates M, Dhesy-Thind SK, Panasci L, Gelmon KA, Salim M, Song X, Clemons M, Ksienski D, Verma S, Simmons C, Lui H, Chi K, Feilotter H, Hagerman LJ, Seymour L. A randomized phase II study of weekly paclitaxel with or without pelareorep in patients with metastatic breast cancer: final analysis of Canadian Cancer Trials Group IND.213. Breast Cancer Res Treat 2017; 167:485-493. [PMID: 29027598 DOI: 10.1007/s10549-017-4538-4] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [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: 10/04/2017] [Accepted: 10/10/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND Pelareorep, a serotype 3 reovirus, has demonstrated preclinical and early clinical activity in breast cancer and synergistic cytotoxic activity with microtubule targeting agents. This multicentre, randomized, phase II trial was undertaken to evaluate the efficacy and safety of adding pelareorep to paclitaxel for patients with metastatic breast cancer (mBC). METHODS Following a safety run-in of 7 patients, 74 women with previously treated mBC were randomized either to paclitaxel 80 mg/m2 intravenously on days 1, 8, and 15 every 4 weeks plus pelareorep 3 × 1010 TCID50 intravenously on days 1, 2, 8, 9, 15, and 16 every 4 weeks (Arm A) or to paclitaxel alone (Arm B). Primary endpoint was progression-free survival (PFS). Secondary endpoints were objective response rate, overall survival (OS), circulating tumour cell counts, safety, and exploratory correlative analyses. All comparisons used a two-sided test at an alpha level of 20%. Survival analyses were adjusted for prior paclitaxel. RESULTS Final analysis was performed after a median follow-up of 29.5 months. Pelareorep was well tolerated. Patients in Arm A had more favourable baseline prognostic variables. Median adjusted PFS (Arm A vs B) was 3.78 mo vs 3.38 mo (HR 1.04, 80% CI 0.76-1.43, P = 0.87). There was no difference in response rate between arms (P = 0.87). Median OS (Arm A vs B) was 17.4 mo vs 10.4 mo (HR 0.65, 80% CI 0.46-0.91, P = 0.1). CONCLUSIONS This first, phase II, randomized study of pelareorep and paclitaxel in previously treated mBC did not show a difference in PFS (the primary endpoint) or RR. However, there was a significantly longer OS for the combination. Further exploration of this regimen in mBC may be of interest.
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Affiliation(s)
- V Bernstein
- BC Cancer Agency, Victoria, BC, V8R 6V5, Canada.
| | | | - S F Dent
- Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - D Tu
- Canadian Cancer Trials Group, Kingston, ON, Canada
| | - M Mates
- Cancer Centre of Southeastern Ontario, Kingston, ON, Canada
| | | | - L Panasci
- Jewish General Hospital, Montreal, QC, Canada
| | | | - M Salim
- Allan Blair Cancer Centre, Regina, SK, Canada
| | - X Song
- Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - M Clemons
- Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - D Ksienski
- BC Cancer Agency, Victoria, BC, V8R 6V5, Canada
| | - S Verma
- Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - C Simmons
- BC Cancer Agency, Vancouver, BC, Canada
| | - H Lui
- Canadian Cancer Trials Group, Kingston, ON, Canada
| | - K Chi
- BC Cancer Agency, Vancouver, BC, Canada
| | | | - L J Hagerman
- Canadian Cancer Trials Group, Kingston, ON, Canada
| | - L Seymour
- Canadian Cancer Trials Group, Kingston, ON, Canada
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Abstract
Acid hydrolyzed bacterial crystalline nanocellulose (BCNC) with different nanofiber morphologies, geometrical dimensions, crystalline structure and mechanical properties were obtained by adding different polysaccharides into the growing culture medium. Arabinogalactan had little effect on the characteristics of BCNC due to its negligible binding affinity to bacterial cellulose (BC). Bacterial exopolysaccharides were capable of modulating the bundling of cellulose microfibrils during BC formation, resulting in BCNC with bundled nanocrystals, high crystallinity, a less sulfated surface, and improved thermal stability and tensile properties. Xylan/BCNC and xyloglucan/BCNC exhibited the most significant improvements, including an increased length and aspect ratio, a significantly less sulfated surface and superior thermal stability and tensile properties. It is hypothesized that the improvement in CNC characteristics results from a change in amorphous cellulose formation in the native BC. This study also suggests that improved feedstocks for producing CNCs may be obtained by modulating hemicellulose production in plants.
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Affiliation(s)
- Kai Chi
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, PA 16802, USA.
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Chi K, Protheroe A, Rodriguez Antolin A, Facchini G, Suttmann H, Matsubara N, Ye ZQ, Keam B, Li T, McQuarrie K, Jia B, De Porre P, Martin J, Todd M, Fizazi K. Benefits of Abiraterone Acetate Plus Prednisone (AA+P) When Added to Androgen Deprivation Therapy (ADT) in LATITUDE on Patient (Pt) Reported Outcomes (PRO). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx370] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Nappi L, Thi M, Fazli L, Chi K, Eigl B, Nichols C, Gleave M, Kollmannsberger C. Biological assessment of viable germ cell tumor (VT) in patients (pts) with seminoma (S) and non-seminoma (S) using miR371. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx371.070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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38
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de Bono J, Bracarda S, Chi K, Massard C, Olmos Hidalgo D, Sandhu S, Sternberg C, Gendreau S, Xu N, Baney T, Maslyar D, Sweeney C. Randomized phase III trial of ipatasertib vs. placebo, plus abiraterone and prednisone/prednisolone, in men with asymptomatic or mildly symptomatic previously untreated metastatic castrate-resistant prostate cancer (mCRPC). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx370.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
As a novel sustainable nanomaterial, crystalline nanocellulose (CNC) possesses many unique characteristics for emerging applications in coatings, emulsions, paints, pharmaceutical formulations, and other aqueous composite systems where interactions with oppositely charged surfactants are commonly employed. Herein, the binding interactions between sulfated CNC and a novel biologically-derived cationic surfactant lauric arginate (LAE) were comprehensively examined. Ionic strength and solution pH are two crucial factors in determining the adsorption of LAE to the CNC surface. Three different driving forces were identified for CNC-LAE binding interactions. Additionally, it was found that the adsorption of LAE to the CNC surface could notably impact the surface potential, aggregation state, hydrophobicity and thermal stability of the CNC. This work provides insights on the binding interactions between oppositely charged CNC and surfactants, and highlights the significance of optimizing the concentration of surfactant required to ionically decorate CNC for its enhanced dispersion and compatibilization in non-polar polymer matrices.
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Affiliation(s)
- Kai Chi
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Jeffrey M Catchmark
- Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, PA 16802, USA.
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Xiao J, Zhang Y, Zhang Z, Lv Q, Jing F, Chi K, Wang S. Self-Supported Biocarbon-Fiber Electrode Decorated with Molybdenum Carbide Nanoparticles for Highly Active Hydrogen-Evolution Reaction. ACS Appl Mater Interfaces 2017. [PMID: 28622725 DOI: 10.1021/acsami.7b06075] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Devising and facilely synthesizing an efficient noble metal-free electrocatalyst for the acceleration of the sluggish kinetics in the hydrogen-evolution reaction (HER) is still a big challenge for electrolytic water splitting. Herein, we present a simple one-step approach for constructing self-supported biocarbon-fiber cloth decorated with molybdenum carbide nanoparticles (BCF/Mo2C) electrodes by a direct annealing treatment of the Mo oxyanions loaded cotton T-shirt. The Mo2C nanoparticles not only serve as the catalytic active sites toward the HER but also enhance the hydrophilicity and conductivity of resultant electrodes. As an integrated three-dimensional HER cathode catalyst, the BCF/Mo2C exhibits outstanding electrocatalytic performance with extremely low overpotentials of 88 and 115 mV to drive a current density of 20 mA cm-2 in alkaline and acidic media, respectively. In addition, it can continuously work for 50 h with little decrease in the cathodic current density in both alkaline and acidic solutions. Even better, self-supported tungsten carbide and vanadium carbide based electrodes also can be prepared by a similar synthesis process. This work will illuminate an entirely new avenue for the preparation of various self-supported three-dimensional electrodes made of transition-metal carbides for various applications.
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Affiliation(s)
- Jian Xiao
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering and §Flexible Electronics Research Center (FERC), School of Mechanical Science and Engineering, Huazhong University of Science and Technology , Wuhan 430074, PR China
| | - Yan Zhang
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering and §Flexible Electronics Research Center (FERC), School of Mechanical Science and Engineering, Huazhong University of Science and Technology , Wuhan 430074, PR China
| | - Zheye Zhang
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering and §Flexible Electronics Research Center (FERC), School of Mechanical Science and Engineering, Huazhong University of Science and Technology , Wuhan 430074, PR China
| | - Qiying Lv
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering and §Flexible Electronics Research Center (FERC), School of Mechanical Science and Engineering, Huazhong University of Science and Technology , Wuhan 430074, PR China
| | - Feng Jing
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering and §Flexible Electronics Research Center (FERC), School of Mechanical Science and Engineering, Huazhong University of Science and Technology , Wuhan 430074, PR China
| | - Kai Chi
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering and §Flexible Electronics Research Center (FERC), School of Mechanical Science and Engineering, Huazhong University of Science and Technology , Wuhan 430074, PR China
| | - Shuai Wang
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering and §Flexible Electronics Research Center (FERC), School of Mechanical Science and Engineering, Huazhong University of Science and Technology , Wuhan 430074, PR China
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Tyldesley S, Parimi S, Tsang E, Bachand F, Aparicio M, Duncan G, Sunderland K, Olson R, Pai H, Alexander A, Lapointe V, Chi K. EP-1359: Pain response in a Population-based study of Radium-223 for Metastatic Prostate Cancer. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31794-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Chi K, Zhang Z, Lv Q, Xie C, Xiao J, Xiao F, Wang S. Well-Ordered Oxygen-Deficient CoMoO 4 and Fe 2O 3 Nanoplate Arrays on 3D Graphene Foam: Toward Flexible Asymmetric Supercapacitors with Enhanced Capacitive Properties. ACS Appl Mater Interfaces 2017; 9:6044-6053. [PMID: 28102070 DOI: 10.1021/acsami.6b14810] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this work, we report the development of well-ordered hydrogenated CoMoO4 (H-CoMoO4) and hydrogenated Fe2O3 (H-Fe2O3) nanoplate arrays on 3D graphene foam (GF) and explore their practice application as binder-free electrodes in assembling flexible all-solid-state asymmetric supercapacitor (ASC) devices. Our results show that the monolithic 3D porous GF prepared by solution casting method using Ni foam template possesses large surface area, superior electrical conductivity, and sufficient surface functional groups, which not only facilitate in situ growth of CoMoO4 and Fe2O3 nanoplates but also contribute the double-layer capacitance of the resultant supercapacitor. The well-ordered pseudocapacitive metal oxide nanoplate arrays standing up on 3D GF scaffold can provide efficient space and shorten the length for electrolyte diffusion from the outer to the inner region of the electrode material for Faradaic energy storage. Furthermore, one of our major findings is that the introduction of oxygen vacancies in CoMoO4 and Fe2O3 nanoplates by hydrogenation treatment can increase their electronic conductivity as well as improve their donor density and surface properties, which gives rise to a substantially improved electrochemical performance. Benefiting from the synergistic contributions of different components in the nanohybrid electrode, the resultant flexible ASC device with GF/H-CoMoO4 as the positive electrode and GF/H-Fe2O3 as the negative electrode achieves a wide operation voltage of 1.5 V and a maximum volumetric specific capacitance of 3.6 F cm-3, which is two times larger than that of the Ni/GF/CoMoO4//Ni/GF/Fe2O3 device (1.8 F cm-3), and the rate capability is up to 70% as the current density increases from 2 to 200 mA cm-3. Moreover, the Ni/GF/H-CoMoO4//Ni/GF/H-Fe2O3 device also exhibits a high energy density of 1.13 mWh cm-3 and a high power density of 150 mW cm-3, good mechanical flexibility with the decrease in capacitance of less than 4% after being bent inward to different angles and inward to 90° 200 times, and good cycling stability of 93.1% capacitance retention after 5000 cycles.
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Affiliation(s)
- Kai Chi
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
| | - Zheye Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
| | - Qiying Lv
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
| | - Chuyi Xie
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
| | - Jian Xiao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
| | - Fei Xiao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
| | - Shuai Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Ministry of Education, Flexible Electronics Research Center (FERC), School of Mechanical Science and Engineering, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
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Attard G, Montgomery R, Vaishampayan U, Gordon M, Smith D, Antonarakis E, Rudsinski E, Perabo F, Chi K, Fizazi K. A phase 1/2 open-label study of safety and antitumor activity of EPI-506, a novel AR N-terminal domain inhibitor, in men with metastatic castration-resistant prostate cancer (mCRPC) with progression after enzalutamide or abiraterone. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/s1569-9056(16)30439-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Wyatt A, Annala M, Beja K, Parimi S, Vandekerkhove G, Warner E, Zulfiqar M, Finch D, Oja C, Vergidis J, Nykter M, Gleave M, Chi K. Genomic alterations in circulating tumor DNA (ctDNA) are associated with clinical outcomes in treatment-naive metastatic castration-resistant prostate cancer (mCRPC) patients commencing androgen receptor (AR)-targeted therapy. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw363.08] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Chi K, Hotte S, Joshua A, North S, Wyatt A, Collins L, Saad F. Treatment of mCRPC in the AR-axis-targeted therapy-resistant state. Ann Oncol 2015; 26:2044-56. [DOI: 10.1093/annonc/mdv267] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 05/29/2015] [Indexed: 12/16/2022] Open
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Chi K, Azad A, Volik S, Haegert A, Zalcberg J, Le Bihan S, McConeghy B, Gleave M, Wyatt A, Collins C. 2504 Genomic predictive and prognostic factors from plasma cell-free DNA (cfDNA) for metastatic castration-resistant prostate cancer (mCRPC) patients (pts) commencing enzalutamide (ENZ). Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31326-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Aviles C, Azad A, Todenhöfer T, Eigl B, Kollmannsberger C, Murray N, Chi K. 2535 Clinical outcomes in chemotherapy-naïve metastatic castrationresistant prostate cancer (mCRPC) patients (pts) treated with abiraterone acetate (ABI) stratified by prognosis. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31354-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Chi K, Zhang Z, Xi J, Huang Y, Xiao F, Wang S, Liu Y. Freestanding graphene paper supported three-dimensional porous graphene-polyaniline nanocomposite synthesized by inkjet printing and in flexible all-solid-state supercapacitor. ACS Appl Mater Interfaces 2014; 6:16312-16319. [PMID: 25180808 DOI: 10.1021/am504539k] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Freestanding paper-like electrode materials have trigged significant research interest for their practical application in flexible and lightweight energy storage devices. In this work, we reported a new type of flexible nanohybrid paper electrode based on full inkjet printing synthesis of a freestanding graphene paper (GP) supported three-dimensional (3D) porous graphene hydrogel (GH)-polyaniline (PANI) nanocomposite, and explored its practical application in flexible all-solid-state supercapacitor (SC). The utilization of 3D porous GH scaffold to load nanostructured PANI dramatically enhances the electrical conductivity, the specific capacitance and the cycle stability of the GH-PANI nanocomposite. Additionally, GP can intimately interact with GH-PANI through π-π stacking to form a unique freestanding GP supported GH-PANI nanocomposite (GH-PANI/GP) with distinguishing mechanical, electrochemical and capacitive properties. These exceptional attributes, coupled with the merits of full inkjet printing strategy, lead to the formation of a high-performance binder-free paper electrode for flexible and lightweight SC application. The flexible all-solid-state symmetric SC based on GH-PANI/GP electrode and gel electrolyte exhibits remarkable mechanical flexibility, high cycling performance and acceptable energy density of 24.02 Wh kg(-1) at a power density of 400.33 W kg(-1). More importantly, the proposed simple and scale-up full inkjet printing procedure for the preparation of freestanding GP supported 3D porous GH-PANI nanocomposite is a modular approach to fabricate other graphene-based nanohybrid papers with tailorable properties and optimal components.
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Affiliation(s)
- Kai Chi
- School of Chemistry & Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, People's Republic of China
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Loriot Y, Fizazi K, Saad F, Sternberg C, Miller K, Mulders P, Chi K, Hirmand M, Selby B, De Bono J. Impact of enzalutamide, an androgen receptor (AR) signalling inhibitor, on time to first skeletal related event (SRE) and pain in the phase 3 AFFIRM study. Prog Urol 2012. [DOI: 10.1016/j.purol.2012.08.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Chi K, Yu E, Ellard S, Hotte S, Gingerich J, Joshua A, Gleave M. A Randomized Phase II Study of OGX-427 Plus Prednisone (P) Vs. P Alone in Patients (PTS) with Metastatic Castration Resistant Prostate Cancer (CRPC). Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33525-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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