1
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Liu Y, Suarez-Arnedo A, Caston EL, Riley L, Schneider M, Segura T. Exploring the Role of Spatial Confinement in Immune Cell Recruitment and Regeneration of Skin Wounds. Adv Mater 2023; 35:e2304049. [PMID: 37721722 PMCID: PMC10874253 DOI: 10.1002/adma.202304049] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 09/09/2023] [Indexed: 09/19/2023]
Abstract
Microporous annealed particle (MAP) scaffolds are injectable granular materials comprised of micron sized hydrogel particles (microgels). The diameter of these microgels directly determines the size of the interconnected void space between particles where infiltrating or encapsulated cells reside. This tunable porosity allows the authors to use MAP scaffolds to study the impact of spatial confinement (SC) on both cellular behaviors and the host response to biomaterials. Despite previous studies showing that pore size and SC influence cellular phenotypes, including mitigating macrophage inflammatory response, there is still a gap in knowledge regarding how SC within a biomaterial modulates immune cell recruitment in vivo in wounds and implants. Thus, the immune cell profile within confined and unconfined biomaterials is studied using small (40 µm), medium (70 µm), and large (130 µm) diameter spherical microgels, respectively. This work uncovered that MAP scaffolds impart regenerative wound healing with an IgG1-biased Th2 response. MAP scaffolds made with large microgels promote a balanced pro-regenerative macrophage response, resulting in enhanced wound healing with mature collagen regeneration and reduced inflammation levels.
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Affiliation(s)
- Yining Liu
- Department of Biomedical Engineering, Duke University, 101 Science Drive Campus Box 90281, Durham, NC 27708, USA
| | - Alejandra Suarez-Arnedo
- Department of Biomedical Engineering, Duke University, 101 Science Drive Campus Box 90281, Durham, NC 27708, USA
| | - Eleanor L.P. Caston
- Department of Biomedical Engineering, Duke University, 101 Science Drive Campus Box 90281, Durham, NC 27708, USA
| | - Lindsay Riley
- Department of Biomedical Engineering, Duke University, 101 Science Drive Campus Box 90281, Durham, NC 27708, USA
| | - Michelle Schneider
- Department of Pathology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Tatiana Segura
- Department of Biomedical Engineering, Duke University, 101 Science Drive Campus Box 90281, Durham, NC 27708, USA
- Clinical Science Departments of Neurology and Dermatology, Duke University, Durham, NC 27708, USA
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2
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Ren X, Wang Q, Pu Y, Sun Q, Sun W, Lu L. Synergizing Spatial Confinement and Dual-Metal Catalysis to Boost Sulfur Kinetics in Lithium-Sulfur Batteries. Adv Mater 2023; 35:e2304120. [PMID: 37467076 DOI: 10.1002/adma.202304120] [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: 05/03/2023] [Revised: 07/09/2023] [Indexed: 07/21/2023]
Abstract
Sluggish kinetics and parasitic shuttling reactions severely impede lithium-sulfur (Li-S) battery operation; resolving these issues can enhance the capacity retention and cyclability of Li-S cells. Therefore, an effective strategy featuring core-shell-structured Co/Ni bimetal-doped metal-organic framework (MOF)/sulfur nanoparticles is reported herein for addressing these problems; this approach offers unprecedented spatial confinement and abundant catalytic sites by encapsulating sulfur within an ordered architecture. The protective shells exhibit long-term stability, ion screening, high lithium-polysulfide adsorption capability, and decent multistep catalytic conversion. Additionally, the delocalized electrons of the MOF endow the cathodes with superior electron/lithium-ion transfer ability. Via multiple physicochemical and theoretical analysis, the resulting synergistic interactions are proved to significantly promote interfacial charge-transfer kinetics, facilitate sulfur conversion dynamics, and inhibit shuttling. The assembled Li-S batteries deliver a stable, highly reversible capacity with marginal decay (0.075% per cycle) for 400 cycles at 0.2 C, a pouch-cell areal capacity of 3.8 mAh cm-2 for 200 cycles under a high sulfur loading, as well as remarkably improved pouch-cell performance.
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Affiliation(s)
- Xiaoyan Ren
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
| | - Qin Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yulai Pu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Qi Sun
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Wenbo Sun
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
| | - Lehui Lu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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3
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Wu H, Xu X, Wu J, Zhai J, Wu F, Li Y, Jiang S, Zhang J, Li H, Gao Y. Atomic Engineering Modulates Oxygen Reduction of Hollow Carbon Matrix Confined Single Metal-Nitrogen Sites for Zinc-Air Batteries. Small 2023; 19:e2301327. [PMID: 37415572 DOI: 10.1002/smll.202301327] [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: 02/14/2023] [Revised: 05/30/2023] [Indexed: 07/08/2023]
Abstract
The systematical understanding of metal-dependent activity in electrocatalyzing oxygen reduction reaction (ORR), a vital reaction with sluggish kinetics for zinc-air batteries, remains quite unclear. An atomic and spatial engineering modulating ORR activity over hollow carbon quasi-sphere (HCS) confined in a series of single M-N (M = Cu, Mn, Ni) sites is reported here. Based on the theoretical prediction and experimental validation, Cu-N4 site with the lowest overpotential shows a better ORR kinetics than Mn-N4 and Ni-N4 . The ORR activity of single-atom Cu center can be further improved by decreasing the coordination number of N to two, namely Cu-N2 , due to the enhancement of electrons with lower coordination structure. Benefitting from the unique spatial confinement effect of the HCS structure in modulating electronic feature of active sites, the Cu-N2 site confined in HCS also delivers highly improved ORR kinetics and activity relative to that on planner graphene. Additionally, the best catalyst holds excellent promise in the application of zinc-air batteries. The findings will pave a new way to atomically and electronically tune active sites with high efficiency for other single-atom catalysts.
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Affiliation(s)
- Haihua Wu
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Xin Xu
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Jiahao Wu
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Juanjuan Zhai
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Feng Wu
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Yudan Li
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Sen Jiang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Jiangwei Zhang
- Science Center of Energy Material and Chemistry, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia, 010021, China
| | - Haobo Li
- School of Chemical Engineering, The University of Adelaide, Adelaide, South Australia, 5005, Australia
| | - Yunfang Gao
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
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4
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Liu Y, Suarez-Arnedo A, Riley L, Miley T, Xia J, Segura T. Spatial Confinement Modulates Macrophage Response in Microporous Annealed Particle (MAP) Scaffolds. Adv Healthc Mater 2023; 12:e2300823. [PMID: 37165945 PMCID: PMC10592513 DOI: 10.1002/adhm.202300823] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/17/2023] [Indexed: 05/12/2023]
Abstract
Macrophages are essential in the initiation, maintenance, and transition of inflammatory processes such as foreign body response and wound healing. Mounting evidence suggests that physical factors also modulate macrophage activation. 2D in vitro systems demonstrate that constraining macrophages to small areas or channels modulates their phenotypes and changes their responses to known inflammatory agents such as lipopolysaccharide. However, how dimensionality and pore size affect macrophage phenotype is less explored. In this work, the change in macrophage M1/M2 polarization when confined in microporous annealed particle (MAP) scaffolds is studied. Particles sizes (40, 70, and 130 µm) are selected using outputs from software LOVAMAP that analyzes the characteristics of 3D pores in MAP gels. As the size of building block particle correlates with pore size inside the scaffolds, the three types of scaffold allow us to study how the degree of spatial confinement modulates the behavior of embedded macrophages. Spatially confining macrophages in scaffolds with pore size on the scale of cells leads to a reduced level of the inflammatory response, which is correlated with a change in cell morphology and motility.
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Affiliation(s)
- Yining Liu
- Department of Biomedical Engineering, Duke University
| | | | - Lindsay Riley
- Department of Biomedical Engineering, Duke University
| | - Tasman Miley
- Department of Biomedical Engineering, Duke University
| | - Jingyi Xia
- Department of Biomedical Engineering, Duke University
| | - Tatiana Segura
- Department of Biomedical Engineering, Duke University
- Clinical Science Departments of Neurology and Dermatology, Duke University
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Brun C, Allain C, Ferron PJ, Younoussa H, Colicchio B, Jeandidier E, M’Kacher R, Guguen-Guillouzo C, Bertile F. Extended lifespan and improved genome stability in HepaRG-derived cell lines through reprogramming by high-density stress. Proc Natl Acad Sci U S A 2023; 120:e2219298120. [PMID: 37639591 PMCID: PMC10483629 DOI: 10.1073/pnas.2219298120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 07/26/2023] [Indexed: 08/31/2023] Open
Abstract
The characteristics and fate of cancer cells partly depend on their environmental stiffness, i.e., the local mechanical cues they face. HepaRG progenitors are liver carcinoma cells exhibiting transdifferentiation properties; however, the underlying mechanisms remain unknown. To evaluate the impact of external physical forces mimicking the tumor microenvironment, we seeded them at very high density for 20 h, keeping the cells round and unanchored to the substrate. Applied without corticoids, spatial confinement due to very high density induced reprogramming of HepaRG cells into stable replicative stem-like cells after replating at normal density. Redifferentiation of these stem-like cells into cells very similar to the original HepaRG cells was then achieved using the same stress but in the presence of corticoids. This demonstrates that the cells retained the memory required to run the complete hepatic differentiation program, after bypassing the Hayflick limit twice. We show that physical stress improved chromosome quality and genomic stability, through greater efficiency of DNA repair and restoration of telomerase activity, thus enabling cells to escape progression to a more aggressive cancer state. We also show the primary importance of high-density seeding, possibly triggering compressive stress, in these processes, rather than that of cell roundness or intracellular tensional signals. The HepaRG-derived lines established here considerably extend the lifespan and availability of this surrogate cell system for mature human hepatocytes. External physical stress is a promising way to create a variety of cell lines, and it paves the way for the development of strategies to improve cancer prognosis.
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Affiliation(s)
- Charlotte Brun
- Université de Strasbourg, CNRS, Institut Pluridisciplinaire Hubert Curien UMR 7178, StrasbourgF-67000, France
- Proteomics French Infrastructure, FR2048, ProFI, StrasbourgF-67000, France
| | - Coralie Allain
- Université de Rennes 1, INSERM U1241, Nutrition, Métabolismes et Cancer, RennesF-35033, France
| | - Pierre-Jean Ferron
- Université de Rennes 1, INSERM U1241, Nutrition, Métabolismes et Cancer, RennesF-35033, France
| | | | - Bruno Colicchio
- Université de Haute-Alsace, Institut de Recherche en Informatique, Mathématiques, Automatique et Signal, MulhouseF-68093, France
| | - Eric Jeandidier
- Groupe Hospitalier de la Région de Mulhouse et Sud Alsace Mulhouse, Service de génétique, MulhouseF-68070, France
| | - Radhia M’Kacher
- Cell Environment DNA Damage R&D, Genopole, EvryF-91058, France
| | | | - Fabrice Bertile
- Université de Strasbourg, CNRS, Institut Pluridisciplinaire Hubert Curien UMR 7178, StrasbourgF-67000, France
- Proteomics French Infrastructure, FR2048, ProFI, StrasbourgF-67000, France
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6
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Sun S, Qi J, Wang S, Wang Z, Hu Y, Huang Y, Fu Y, Wang Y, Du H, Hu X, Lei Y, Chen X, Li L, Hu W. General Spatial Confinement Recrystallization Method for Rapid Preparation of Thickness-Controllable and Uniform Organic Semiconductor Single Crystals. Small 2023; 19:e2301421. [PMID: 37264765 DOI: 10.1002/smll.202301421] [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: 02/16/2023] [Revised: 04/29/2023] [Indexed: 06/03/2023]
Abstract
Organic semiconductor single crystals (OSSCs) are ideal materials for studying the intrinsic properties of organic semiconductors (OSCs) and constructing high-performance organic field-effect transistors (OFETs). However, there is no general method to rapidly prepare thickness-controllable and uniform single crystals for various OSCs. Here, inspired by the recrystallization (a spontaneous morphological instability phenomenon) of polycrystalline films, a spatial confinement recrystallization (SCR) method is developed to rapidly (even at several second timescales) grow thickness-controllable and uniform OSSCs in a well-controlled way by applying longitudinal pressure to tailor the growth direction of grains in OSCs polycrystalline films. The relationship between growth parameters including the growth time, temperature, longitudinal pressure, and thickness is comprehensively investigated. Remarkably, this method is applicable for various OSCs including insoluble and soluble small molecules and polymers, and can realize the high-quality crystal array growth. The corresponding 50 dinaphtho[2,3-b:2″,3″-f]thieno[3,2-b]thiophene (DNTT) single crystals coplanar OFETs prepared by the same batch have the mobility of 4.1 ± 0.4 cm2 V-1 s-1 , showing excellent uniformity. The overall performance of the method is superior to the reported methods in term of growth rate, generality, thickness controllability, and uniformity, indicating its broad application prospects in organic electronic and optoelectronic devices.
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Affiliation(s)
- Shougang Sun
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, 300072, Tianjin, China
| | - Jiannan Qi
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, 300072, Tianjin, China
| | - Shuguang Wang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, 300072, Tianjin, China
| | - Zhongwu Wang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, 300072, Tianjin, China
| | - Yongxu Hu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, 300072, Tianjin, China
| | - Yinan Huang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, 300072, Tianjin, China
| | - Yao Fu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, 300072, Tianjin, China
| | - Yanpeng Wang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, 300072, Tianjin, China
| | - Haiyan Du
- Analysis and testing center of Tianjin University, 300192, Tianjin, China
| | - Xiaoxia Hu
- Analysis and testing center of Tianjin University, 300192, Tianjin, China
| | - Yong Lei
- Fachgebiet Angewandte Nanophysik, Institut für Physik & IMN MacroNano, Technische Universitat Ilmenau, 98693, Ilmenau, Germany
| | - Xiaosong Chen
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, 300072, Tianjin, China
| | - Liqiang Li
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, 300072, Tianjin, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, 350207, Fuzhou, China
- Haihe Laboratory of Sustainable Chemical Transformations, 300192, Tianjin, China
| | - Wenping Hu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, 300072, Tianjin, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, 350207, Fuzhou, China
- Haihe Laboratory of Sustainable Chemical Transformations, 300192, Tianjin, China
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7
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Zhao X, Chen M, Bi Z, Zhang H, Hu G, Zhou Y. Double-Confinement Construction of Atomically-Dispersed-Fe Bifunctional Oxygen Electrocatalyst for High-Performance Zinc-Air Battery. Small 2023:e2304854. [PMID: 37548123 DOI: 10.1002/smll.202304854] [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] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/27/2023] [Indexed: 08/08/2023]
Abstract
Simultaneously achieving high activity for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is the key to constructing rechargeable Zn-air batteries (ZABs). Here the complexation of 1,10-phenanthroline and the spatial confinement effect of closo-[B12 H12 ]2- are used to solidify metal-boron-cluster-organic-polymers on the surface of SiO2 microspheres to construct a bifunctional oxygen electrocatalyst (FeBCN/NHCS). Driven by FeBCN/NHCS, the half-wave-potential of ORR surpasses that of the Pt/C catalyst, reaching 0.893 V versus RHE, and the overpotential (η10 ) of OER is as low as 361 mV. The ZABs of FeBCN/NHCS as an air cathode not only have high power density and specific capacity, but also have charge-discharge durability. The FeBCN/NHCS is not only related to the high specific surface area, but also the high exposure rate of single-atom Fe and the doping of heteroatom B. This study provides an efficient oxygen electrocatalyst and also contributes wisdom to the acquisition of highly active oxygen electrocatalyst.
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Affiliation(s)
- Xue Zhao
- Faculty of chemistry and chemical engineering, Yunnan Normal University, Kunming, 650500, China
| | - Mengshan Chen
- National Engineering Research Center for Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316004, China
| | - Zenghui Bi
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, 650504, China
| | - Haoran Zhang
- National Engineering Research Center for Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316004, China
| | - Guangzhi Hu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, 650504, China
| | - Yingtang Zhou
- National Engineering Research Center for Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316004, China
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8
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Zou Z, Yu Z, Chen C, Wang Q, Zhu K, Ye K, Wang G, Cao D, Yan J. High-Performance Alkali Metal Ion Storage in Bi 2Se 3 Enabled by Suppression of Polyselenide Shuttling Through Intrinsic Sb-Substitution Engineering. ACS Nano 2023. [PMID: 37428997 DOI: 10.1021/acsnano.3c03381] [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] [Indexed: 07/12/2023]
Abstract
Bismuth selenide holds great promise as a kind of conversion-alloying-type anode material for alkali metal ion storage because of its layered structure with large interlayer spacing and high theoretical specific capacity. Nonetheless, its commercial development has been significantly hammered by the poor kinetics, severe pulverization, and polyselenide shuttle during the charge/discharge process. Herein, Sb-substitution and carbon encapsulation strategies are simultaneously employed to synthesize SbxBi2-xSe3 nanoparticles decorated on Ti3C2Tx MXene with encapsulation of N-doped carbon (SbxBi2-xSe3/MX⊂NC) as anodes for alkali metal ion storage. The superb electrochemical performances could be assigned to the cationic displacement of Sb3+ that effectively inhibits the shuttling effect of soluble polyselenides and the confinement engineering that alleviates the volume change during the sodiation/desodiation process. When used as anodes for sodium- and lithium-ion batteries, the Sb0.4Bi1.6Se3/MX⊂NC composite exhibits superior electrochemical performances. This work offers valuable guidance to suppress the shuttling of polyselenides/polysulfides in high-performance alkali metal ion batteries with conversion/alloying-type transition metal sulfide/selenide anode materials.
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Affiliation(s)
- Zhengguang Zou
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Zhiqi Yu
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Chi Chen
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, and Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, China
| | - Qian Wang
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Kai Zhu
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Ke Ye
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Guiling Wang
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Dianxue Cao
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jun Yan
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
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9
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Ru Y, Yang Y, Wu Q, Fang R, Zhao T, Klein J, Liu M. Organohydrogels with High-speed Lubrication via Confining Polymer Chain Mobility by Interpenetrated Heteronetwork. Angew Chem Int Ed Engl 2023:e202302765. [PMID: 37114300 DOI: 10.1002/anie.202302765] [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: 02/23/2023] [Revised: 03/30/2023] [Accepted: 04/26/2023] [Indexed: 04/29/2023]
Abstract
Hydrogels with pure hydrophilic network have received much attention due to their excellent low frictional behavior. However, the lubrication performance of hydrogels is not satisfied under high-speed condition due to the energy dissipation caused by adsorbed polymer chains as well as the failure of lubricating mechanisms accompanied by the transition of lubrication regime. In this work, interpenetrating double-network organohydrogels were constructed by combining hydrophilic and oleophilic polymer networks to modify the physiochemical properties of surface polymer chains, especially the chain mobility. The oleophilic polymer network spatially restricting the mobility of the swollen hydrophilic network in water, resulted in a low coefficient of friction (ca. 0.01) compared with conventional hydrogels at high speed (0.1m/s). Meanwhile, the organohydrogels had superior wear resistance, with almost no wear observed on the sliding track after 5k cycles of rubbing at high speed. The design concept of organohydrogels can be extended to a variety of low-wear, highly-lubricating materials.
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Affiliation(s)
- Yunfei Ru
- Beihang University, School of Chemistry, CHINA
| | | | - Qingshan Wu
- Beihang University, School of Chemistry, CHINA
| | - Ruochen Fang
- Beihang University, Research Institute for Frontier Science, CHINA
| | - Tianyi Zhao
- Beihang University, School of Chemistry, CHINA
| | - Jacob Klein
- Weizmann Institute of Science, Department of Molecular Chemistry and Materials Science, ISRAEL
| | - Mingjie Liu
- Beihang university, School of chemistry and environment, 37# Xueyuan Road, Haidian District, 100191, Beijing, CHINA
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10
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Huang J, Gambietz S, Saccà B. Self-Assembled Artificial DNA Nanocompartments and Their Bioapplications. Small 2023; 19:e2202253. [PMID: 35775957 DOI: 10.1002/smll.202202253] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/02/2022] [Indexed: 06/15/2023]
Abstract
Compartmentalization is the strategy evolved by nature to control reactions in space and time. The ability to emulate this strategy through synthetic compartmentalization systems has rapidly evolved in the past years, accompanied by an increasing understanding of the effects of spatial confinement on the thermodynamic and kinetic properties of the guest molecules. DNA nanotechnology has played a pivotal role in this scientific endeavor and is still one of the most promising approaches for the construction of nanocompartments with programmable structural features and nanometer-scaled addressability. In this review, the design approaches, bioapplications, and theoretical frameworks of self-assembled DNA nanocompartments are surveyed. From DNA polyhedral cages to virus-like capsules, the construction principles of such intriguing architectures are illustrated. Various applications of DNA nanocompartments, including their use for programmable enzyme scaffolding, single-molecule studies, biosensing, and as artificial nanofactories, ending with an ample description of DNA nanocages for biomedical purposes, are then reported. Finally, the theoretical hypotheses that make DNA nanocompartments, and nanosystems in general, a topic of great interest in modern science, are described and the progresses that have been done until now in the comprehension of the peculiar phenomena that occur within nanosized environments are summarized.
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Affiliation(s)
- Jing Huang
- ZMB, Faculty of Biology, University Duisburg-Essen, 45141, Essen, Germany
| | - Sabrina Gambietz
- ZMB, Faculty of Biology, University Duisburg-Essen, 45141, Essen, Germany
| | - Barbara Saccà
- ZMB, Faculty of Biology, University Duisburg-Essen, 45141, Essen, Germany
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11
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Chołuj M, Lipkowski P, Bartkowiak W. HeH + under Spatial Confinement. Molecules 2022; 27:molecules27248997. [PMID: 36558130 PMCID: PMC9787572 DOI: 10.3390/molecules27248997] [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] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/02/2022] [Accepted: 12/07/2022] [Indexed: 12/24/2022]
Abstract
In the present study, the influence of spatial confinement on the bond length as well as dipole moment, polarizability and (hyper)polarizabilities of HeH+ ion was analyzed. The effect of spatial confinement was modelled by cylindrically symmetric harmonic oscillator potential, that can be used to mimic high pressure conditions. Based on the conducted research it was found that the spatial confinement significantly affects the investigated properties. Increasing the confinement strength leads to a substantial decrease of their values. This work may be of particular interest for astrochemistry as HeH+ is believed to be the first compound to form in the Universe.
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12
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Jin C, Han P, Li G, Zhang Y, Sun H, Shen W, Sun C, Wei H. Space-Confined Surface Layer in Superstructured Ni-N-C Catalyst for Enhanced Catalytic Degradation of m-Cresol by PMS Activation. ACS Appl Mater Interfaces 2022; 14:40834-40840. [PMID: 36053002 DOI: 10.1021/acsami.2c09111] [Citation(s) in RCA: 1] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The broad application of peroxymonosulfate (PMS)-assisted oxidation by heterogeneous catalysts for contaminant removal suffers from the limitation of low PMS decomposition efficiency and consequent excessive electrolyte residues. In this work, we report that a micrometer-scale superstructured Ni-N-C catalyst Ni-NCNT/CB with a nanotube-array surface layer exhibits ultrahigh m-cresol removal efficiency with low PMS input and possesses ∼17-fold higher catalytic specific activity (reaction rate constant normalized to per Ni-Nx site) compared to the traditional Ni-SAC catalyst. Electron paramagnetic resonance results indicate that 1O2 is the dominant oxygen species, and Ni-NCNT/CB with a space-confined layer exhibits high 1O2 utilization for m-cresol degradation. Electrochemical impedance spectroscopy and a normalized k value of Ni-NCNT/CB confirm the spatial confinement effect on the catalyst surface, which is beneficial for regulating the mass transfer and exerting the high activity of active sites. This study gives a new application for spatial confinement, and the configuration of Ni-NCNT/CB may guide a rational catalyst design for AOP wastewater treatment.
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Affiliation(s)
- Chengyu Jin
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Peiwei Han
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
- School of Energy Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Gao Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Yanan Zhang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Hao Sun
- National Marine Environmental Monitoring Center, Dalian 116023, China
| | - Wenjie Shen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Chenglin Sun
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Huangzhao Wei
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
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13
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Qin Y, Miao L, Mansuer M, Hu C, Lv Y, Gan L, Liu M. Spatial Confinement Strategy for Micelle-Size-Mediated Modulation of Mesopores in Hierarchical Porous Carbon Nanosheets with an Efficient Capacitive Response. ACS Appl Mater Interfaces 2022; 14:33328-33339. [PMID: 35830692 DOI: 10.1021/acsami.2c08342] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Commercial supercapacitors using available carbon products have long been criticized for the under-utilization of their prominent specific surface area (SSA). In terms of carbonaceous electrode optimization, excessive improvement in SSA observed in the gaseous atmosphere might have little effect on the final performance because cracked/inaccessible pore alleys considerably block the direct electrolyte ion transport in a practical electrochemical environment. Herein, mesopore-adjustable hierarchically porous carbon nanosheets are fabricated based on a micelle-size-mediated spatial confinement strategy. In this strategy, hydrophobic trimethylbenzene in different volumes of the solvent can mediate the interfacial assembly with a carbon precursor and porogen segment through π-π bonding and van der Waals interaction to yield micelles with good dispersity and the diameter varying from 119 to 30 nm. With an increasing solvent volume, the corresponding diffusion coefficient (3.1-14.3 m2 s-1) of as-obtained smaller micelles increases, which makes adjacent micelles gather rapidly and then grow along the radial direction of oligomer aggregates to eventually form mesopores on hierarchically porous carbon nanosheets (MNC150-4.5). Thanks to the pore-expansion effect of trimethylbenzene, the mesoporous volume can be adjusted from 28.8 to 40.0%. Mesopores on hierarchically porous carbon nanosheets endow MNC150-4.5 with an enhanced electrochemically active surface area of 819.5 m2 g-1, which gives rise to quick electrolyte accessibility and a correspondingly immediate capacitive response of 338 F g-1 at 0.5 A g-1 in a three-electrode system. Electrolyte transport through pathways within MNC150-4.5 ultimately enables the symmetric cell to deliver a high energy output of 50.4 Wh kg-1 at 625 W kg-1 in a 14 m LiOTF electrolyte and 95% capacitance retention after 100,000 cycles, which show its superior electrochemical performance over representative carbon-based supercapacitors with aqueous electrolytes in recent literature.
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Affiliation(s)
- Yang Qin
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Ling Miao
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Mulati Mansuer
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Chengmin Hu
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Yaokang Lv
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Lihua Gan
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Mingxian Liu
- Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
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14
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Li H, Guo C, Zhang T, Xue P, Zhao R, Zhou W, Li W, Elzatahry A, Zhao D, Chao D. Hierarchical Confinement Effect with Zincophilic and Spatial Traps Stabilized Zn-Based Aqueous Battery. Nano Lett 2022; 22:4223-4231. [PMID: 35507684 DOI: 10.1021/acs.nanolett.2c01235] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Zn-based aqueous batteries (ZABs) have been regarded as promising candidates for safe and large-scale energy storage in the "post-Li" era. However, kinetics and stability problems of Zn capture cannot be concomitantly regulated, especially at high rates and loadings. Herein, a hierarchical confinement strategy is proposed to design zincophilic and spatial traps through a host of porous Co-embedded carbon cages (denoted as CoCC). The zincophilic Co sites act as preferred nucleation sites with low nucleation barriers (within 0.5 mA h cm-2), and the carbon cage can further spatially confine Zn deposition (within 5.0 mA h cm-2). Theoretical simulations and in situ/ex situ structural observations reveal the hierarchical spatial confinement by the elaborated all-in-one network (within 12 mA h cm-2). Consequently, the elaborate strategy enables a dendrite-free behavior with excellent kinetics (low overpotential of ca. 65 mV at a high rate of 20 mA cm-2) and stable cycle life (over 800 cycles), pushing forward the next-generation high-performance ZABs.
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Affiliation(s)
- Hongpeng Li
- Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
- College of Mechanical Engineering, Yangzhou University, Yangzhou 225127, P. R. China
| | - Can Guo
- School of Chemistry, South China Normal University, Guangzhou 511400, P. R. China
| | - Tengsheng Zhang
- Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Pan Xue
- College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, P. R. China
| | - Ruizheng Zhao
- Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Wanhai Zhou
- Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Wei Li
- Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Ahmed Elzatahry
- Materials Science and Technology Program, College of Arts and Sciences, Qatar University, PO Box 2713, Doha 2713, Qatar
| | - Dongyuan Zhao
- Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Dongliang Chao
- Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and School of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
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15
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Zuo Y, Wang Z, Zhao H, Zhao L, Zhang L, Yi B, Bao W, Zhang Y, Su L, Yu Y, Xie J. Synthesis of a Spatially Confined, Highly Durable, and Fully Exposed Pd Cluster Catalyst via Sequential Site-Selective Atomic Layer Deposition. ACS Appl Mater Interfaces 2022; 14:14466-14473. [PMID: 35312273 DOI: 10.1021/acsami.2c00009] [Citation(s) in RCA: 1] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Bottom-up synthesis based on site-selective atomic layer deposition is a powerful atomic-scale processing approach to fabricate materials with desired functionalities. Typical selective atomic layer deposition (ALD) can be achieved using selective activation of a growth area or selective deactivation of a protected area. In this work, we explored the site selectivity based on the difference of the inherent surface reactivity between different materials and within the same materials. By sequentially applying two site-selective atomic layer deposition, the ALD Pd catalyst is spatially confined on ALD SnO2 modified h-BN substrate Pd/SnO2/h-BN shows improved catalytic activity and stability due to strong metal-support interactions and spatial confinement. The results reveal that sequential site-selective ALD is a feasible and effective synthesis strategy that provides an attractive path toward designing and developing highly stable catalysts.
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Affiliation(s)
- Yuqing Zuo
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Zeyu Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Haojie Zhao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Lianqi Zhao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Lunjia Zhang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Beili Yi
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Wenda Bao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Yue Zhang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Longxing Su
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Yi Yu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Jin Xie
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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16
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Lipkowski P, Kozłowska J, Bartkowiak W. A Look at the Spatial Confining Effect on the Molecular Electrostatic Potential (MEP)-A Case Study of the HF and BrCN Molecules. Molecules 2021; 26:5924. [PMID: 34641468 PMCID: PMC8512269 DOI: 10.3390/molecules26195924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/28/2021] [Accepted: 09/28/2021] [Indexed: 11/16/2022] Open
Abstract
In this theoretical study, we report on the molecular electrostatic potential (MEP) of titled molecules confined by repulsive potentials of cylindrical symmetry mimicking a topology. Our calculations show that the spatial restriction significantly changes the picture of the MEP of molecules in a quantitative and qualitative sense. In particular, the drastic changes in the MEP as a function of the strength of spatial confinement are observed for the BrCN molecule. This preliminary study is the first step in the investigation of the behavior of the MEP of molecular systems under orbital compression.
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Affiliation(s)
| | | | - Wojciech Bartkowiak
- Department of Physical and Quantum Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wyb. Wyspiańskiego 27, PL-50370 Wrocław, Poland; (P.L.); (J.K.)
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17
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Zhang W, Wang K, Zeng Y, Hu X, Zhang X, Chang S, Zhang H. Low-Diffusion Fricke Gel Dosimeters with Core-Shell Structure Based on Spatial Confinement. Materials (Basel) 2021; 14:3932. [PMID: 34300851 DOI: 10.3390/ma14143932] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 07/08/2021] [Accepted: 07/11/2021] [Indexed: 11/17/2022]
Abstract
The diffusion of ferric ions is an important challenge to limit the application of Fricke gel dosimeters in accurate three-dimensional dose verification of modern radiotherapy. In this work, low-diffusion Fricke gel dosimeters, with a core-shell structure based on spatial confinement, were constructed by utilizing microdroplet ultrarapid freezing and coating technology. Polydimethylsiloxane (PDMS), with its excellent hydrophobicity, was coated on the surface of the pellets. The concentration gradient of the ferric ion was realized through shielding half of a Co-60 photon beam field size, and ion diffusion was measured by both ultraviolet-visible spectrophotometry and magnetic resonance imaging. No diffusion occurred between the core-shell pellets, even at 96 h after irradiation, and the diffusion length at the irradiation boundary was limited to the diameter (2-3 mm) of the pellets. Furthermore, Monte Carlo calculations were conducted to study dosimetric properties of the core-shell dosimeter, which indicated that a PDMS shell hardly affected the performance of the dosimeter.
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18
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Huang M, Yao Z, Yang Q, Li C. Consecutive Nucleation and Confinement Modulation towards Li Plating in Seeded Capsules for Durable Li-Metal Batteries. Angew Chem Int Ed Engl 2021; 60:14040-14050. [PMID: 33837636 DOI: 10.1002/anie.202102552] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [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: 02/19/2021] [Revised: 04/02/2021] [Indexed: 01/09/2023]
Abstract
A dual modulation strategy of consecutive nucleation and confined growth of Li metal is proposed by using the metal-organic framework (MOF) derivative hollow capsule with inbuilt lithiophilic Au or Co-O nanoparticle (NP) seeds as heterogeneous host. The seeding-induced nucleation enables the negligible overpotential and promotes the inward injection of Li mass into the abundant cavities in host, followed by the conformal plating of Li on the outer surface of host during discharging. This modulation alleviates the dendrite growth and volume expansion of Li plating. The interconnected porous host network enables enhancement of cycling and rate performances of Li metal (a lifespan over 1200 h for Au-seeding symmetric cells, and an endurance of 220 cycles under an ultrahigh current density of 10 mA cm-2 for corresponding asymmetric cells). The hollow capsules integrated with lithiophilic seeds solve the deformation problem of Li metal for durable and long-life Li-metal batteries.
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Affiliation(s)
- Minsong Huang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 585 He Shuo Road, Shanghai, 201899, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.,CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
| | - Zhenguo Yao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 585 He Shuo Road, Shanghai, 201899, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qifan Yang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 585 He Shuo Road, Shanghai, 201899, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.,CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
| | - Chilin Li
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 585 He Shuo Road, Shanghai, 201899, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.,CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
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19
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Feng C, Tan YL, Cheng YX, Shi YZ, Tan ZJ. Salt-Dependent RNA Pseudoknot Stability: Effect of Spatial Confinement. Front Mol Biosci 2021; 8:666369. [PMID: 33928126 PMCID: PMC8078894 DOI: 10.3389/fmolb.2021.666369] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 03/17/2021] [Indexed: 12/27/2022] Open
Abstract
Macromolecules, such as RNAs, reside in crowded cell environments, which could strongly affect the folded structures and stability of RNAs. The emergence of RNA-driven phase separation in biology further stresses the potential functional roles of molecular crowding. In this work, we employed the coarse-grained model that was previously developed by us to predict 3D structures and stability of the mouse mammary tumor virus (MMTV) pseudoknot under different spatial confinements over a wide range of salt concentrations. The results show that spatial confinements can not only enhance the compactness and stability of MMTV pseudoknot structures but also weaken the dependence of the RNA structure compactness and stability on salt concentration. Based on our microscopic analyses, we found that the effect of spatial confinement on the salt-dependent RNA pseudoknot stability mainly comes through the spatial suppression of extended conformations, which are prevalent in the partially/fully unfolded states, especially at low ion concentrations. Furthermore, our comprehensive analyses revealed that the thermally unfolding pathway of the pseudoknot can be significantly modulated by spatial confinements, since the intermediate states with more extended conformations would loss favor when spatial confinements are introduced.
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Affiliation(s)
- Chenjie Feng
- Key Laboratory of Artificial Micro and Nano-structures of Ministry of Education, Center for Theoretical Physics, School of Physics and Technology, Wuhan University, Wuhan, China
| | - Ya-Lan Tan
- Key Laboratory of Artificial Micro and Nano-structures of Ministry of Education, Center for Theoretical Physics, School of Physics and Technology, Wuhan University, Wuhan, China
| | - Yu-Xuan Cheng
- Key Laboratory of Artificial Micro and Nano-structures of Ministry of Education, Center for Theoretical Physics, School of Physics and Technology, Wuhan University, Wuhan, China
| | - Ya-Zhou Shi
- Research Center of Nonlinear Science, School of Mathematics and Computer Science, Wuhan Textile University, Wuhan, China
| | - Zhi-Jie Tan
- Key Laboratory of Artificial Micro and Nano-structures of Ministry of Education, Center for Theoretical Physics, School of Physics and Technology, Wuhan University, Wuhan, China
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20
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Abstract
Nucleic acids and proteins are two major classes of biopolymers in living systems. Whereas nucleic acids are characterized by robust molecular recognition properties, essential for the reliable storage and transmission of the genetic information, the variability of structures displayed by proteins and their adaptability to the environment make them ideal functional materials. One of the major goals of DNA nanotechnology-and indeed its initial motivation-is to bridge these two worlds in a rational fashion. Combining the predictable base-pairing rule of DNA with chemical conjugation strategies and modern protein engineering methods has enabled the realization of complex DNA-protein architectures with programmable structural features and intriguing functionalities. In this review, we will focus on a special class of biohybrid structures, characterized by one or many enzyme molecules linked to a DNA scaffold with nanometer-scale precision. After an initial survey of the most important methods for coupling DNA oligomers to proteins, we will report the strategies adopted until now for organizing these conjugates in a predictable spatial arrangement. The major focus of this review will be on the consequences of such manipulations on the binding and kinetic properties of single enzymes and enzyme complexes: an interesting aspect of artificial DNA-enzyme hybrids, often reported in the literature, however, not yet entirely understood and whose full comprehension may open the way to new opportunities in protein science.
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Affiliation(s)
- Andreas Jaekel
- ZMB, University Duisburg-Essen, Universitätstraße 2, 45117 Essen, Germany.
| | - Pierre Stegemann
- ZMB, University Duisburg-Essen, Universitätstraße 2, 45117 Essen, Germany.
| | - Barbara Saccà
- ZMB, University Duisburg-Essen, Universitätstraße 2, 45117 Essen, Germany.
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21
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Meng J, E S, Wei X, Chen X, Wang J. Confinement of AuAg NCs in a Pomegranate-Type Silica Architecture for Improved Copper Ion Sensing and Imaging. ACS Appl Mater Interfaces 2019; 11:21150-21158. [PMID: 31117442 DOI: 10.1021/acsami.9b04047] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Metal nanoclusters (NCs) have been in focus received attention due to their superior optical properties, whereas their biomedical applications are limited by the relatively low quantum yield and poor cellular uptaking behaviors. In the present study, a pomegranate-type architecture with densely packed AuAg NCs is constructed, where the aminoterminated dendritic silica spheres (dNSiO2) with ultralarge central-radial pore channels act as an efficient absorbent host for self-assembling of AuAg NCs. The spatial confinement of AuAg NCs within the pomegranate-type silica architecture not only avoids the time-tedious purification procedure in metal NCs fabrication but also offer significant improvement of the photoluminescence performance of AuAg NCs, i.e., the quantum yield (17.0%) is nearly doubled when compared to that of free AuAg NCs. The presence of Cu2+ induces efficient quenching of the photoluminescence of obtained dNSiO2-AuAg NCs, achieving the sensitive detection of Cu2+ with a detection limit of 0.060 μM. Moreover, the pomegranate-type silica architecture serves itself as an excellent nanocarrier to deliver AuAg NCs into living cells, making dNSiO2-AuAg NCs an efficient probe for intracellular Cu2+ sensing and imaging.
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Affiliation(s)
- Jie Meng
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences , Northeastern University , Box 332, Shenyang 110819 , China
| | - Shuang E
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences , Northeastern University , Box 332, Shenyang 110819 , China
| | - Xing Wei
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences , Northeastern University , Box 332, Shenyang 110819 , China
| | - Xuwei Chen
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences , Northeastern University , Box 332, Shenyang 110819 , China
| | - Jianhua Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences , Northeastern University , Box 332, Shenyang 110819 , China
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22
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Ma S, Kim SH, Jeong B, Kwon HC, Yun SC, Jang G, Yang H, Park C, Lee D, Moon J. Strain-Mediated Phase Stabilization: A New Strategy for Ultrastable α-CsPbI 3 Perovskite by Nanoconfined Growth. Small 2019; 15:e1900219. [PMID: 30946524 DOI: 10.1002/smll.201900219] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/01/2019] [Indexed: 05/08/2023]
Abstract
All-inorganic cesium lead triiodide (CsPbI3 ) perovskite is considered a promising solution-processable semiconductor for highly stable optoelectronic and photovoltaic applications. However, despite its excellent optoelectronic properties, the phase instability of CsPbI3 poses a critical hurdle for practical application. In this study, a novel stain-mediated phase stabilization strategy is demonstrated to significantly enhance the phase stability of cubic α-phase CsPbI3 . Careful control of the degree of spatial confinement induced by anodized aluminum oxide (AAO) templates with varying pore sizes leads to effective manipulation of the phase stability of α-CsPbI3 . The Williamson-Hall method in conjunction with density functional theory calculations clearly confirms that the strain imposed on the perovskite lattice when confined in vertically aligned nanopores can alter the formation energy of the system, stabilizing α-CsPbI3 at room temperature. Finally, the CsPbI3 grown inside nanoporous AAO templates exhibits exceptional phase stability over three months under ambient conditions, in which the resulting light-emitting diode reveals a natural red color emission with very narrow bandwidth (full width at half maximum of 33 nm) at 702 nm. The universally applicable template-based stabilization strategy can give in-depth insights on the strain-mediated phase transition mechanism in all-inorganic perovskites.
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Affiliation(s)
- Sunihl Ma
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Seong Hun Kim
- Department of Materials Science and Engineering and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Beomjin Jeong
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hyeok-Chan Kwon
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Seong-Cheol Yun
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Gyumin Jang
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hyunha Yang
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Cheolmin Park
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Donghwa Lee
- Department of Materials Science and Engineering and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Jooho Moon
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
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23
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Liu K, Gao S, Zheng Z, Deng X, Mukherjee S, Wang S, Xu H, Wang J, Liu J, Zhai T, Fang Y. Spatially Confined Growth of Fullerene to Super-Long Crystalline Fibers in Supramolecular Gels for High-Performance Photodetector. Adv Mater 2019; 31:e1808254. [PMID: 30873680 DOI: 10.1002/adma.201808254] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 02/25/2019] [Indexed: 06/09/2023]
Abstract
As a superstar organic semiconductor, fullerene (C60 ) is versatile in nature for its multiple photoelectric applications. However, owing to its natural 0D structure, a challenge still remains unbeaten as to growth of 1D fullerene crystals with tunable sizes. Herein, reported is an efficient approach to grow C60 as super-long crystalline fibers with tunable lengths and diameters in supramolecular gel by synergic changes of anti-solvent, gel length, crystallization time or fullerene concentration. As a result, the crystalline C60 fibers can be modulated to as long as 70 mm and 70 000 in their length-to-width ratio. In this case, the gel 3D network provides spatial confinements for the growth of 1D crystal along the directional dispersion of anti-solvent. The fabricated fullerene device exhibits high responsivity (2595.6 mA W-1 ) and high specific detectivity (2.7 × 1012 Jones) at 10 V bias upon irradiation of 400 nm incident light. The on/off ratio and its quantum efficiency are near to 540 and about 800%, respectively, and importantly, its photoelectric property remains very stable after storage in air for six months. Therefore, spatially confined growth of fullerene in supramolecular gels will be another crucial strategy to synthesize 1D semiconductor crystals for photoelectrical device applications in near future.
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Affiliation(s)
- Kaiqiang Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Sheng Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Zhi Zheng
- State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Xinling Deng
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Somnath Mukherjee
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Suansuan Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Hua Xu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Jinqiang Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Jianfei Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Tianyou Zhai
- State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Yu Fang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
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24
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Kuang H, Wang J, Li J, Qiao K, Liu Y, Hu F, Sun J, Shen B. Enhanced Field Modulation Sensitivity and Anomalous Polarity-Dependency Emerged in Spatial-Confined Manganite Strips. ACS Appl Mater Interfaces 2018; 10:32597-32606. [PMID: 30175581 DOI: 10.1021/acsami.8b10915] [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: 06/08/2023]
Abstract
An anomalous polarity-dependent electrostatic field modulation effect, facilitated by spatial confinement, is found in an oxide-based field-effect prototype device with a spatial-confined Pr0.7(Ca0.6Sr0.4)0.3MnO3 channel. It is revealed that the dominant field modulation mode under a small bias field varies from a polarity-independent strain-mediated one to a nonvolatile polarity-dependent one with enhanced modulation sensitivity as the channel width narrows down to several micrometers. Specially, in the structure confined to length scales similar to that of the phase domains, the field modulation exhibits a greatly increased modulation amplitude around the transition temperature and an anomalous bias-polarity dependence that is diametrically opposite to the normal one observed in regular polarization field-effect. Further simulations show that a large in-plane polarization field is unexpectedly induced by a small out-of-plane bias field of 4 kV/cm in the narrow strip (up to 790 kV/cm for the 3 μm strip). Such large in-plane polarization field, facilitated and enhanced by size reduction, drives phase transitions in the narrow channel film, leading to the reconfiguration of percolation channel and nonvolatile modulation of transport properties. Accordingly, the accompanied polarity relationship between the induced in-plane polarization field and the applied vertical bias field well explains the observed anomalous polarity-dependence of the modulation. Our studies reveal a new acting channel in the nanoscale control of lateral configurations of electronic phase separation and macroscopic behaviors by a small vertical electric bias field in spatial-confined field-effect structures. This distinct acting mechanism offers new possibilities for designing low-power all-oxide-based electronic devices and exploiting new types of multifunctionality to other strongly correlated materials where electronic phase competition exists.
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Affiliation(s)
- Hao Kuang
- Beijing National Laboratory for Condensed Matter Physics and State Key Laboratory of Magnetism , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , P. R. China
- School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Jing Wang
- Beijing National Laboratory for Condensed Matter Physics and State Key Laboratory of Magnetism , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , P. R. China
- School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Jia Li
- Beijing National Laboratory for Condensed Matter Physics and State Key Laboratory of Magnetism , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , P. R. China
- School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Kaiming Qiao
- Beijing National Laboratory for Condensed Matter Physics and State Key Laboratory of Magnetism , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , P. R. China
- School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Yao Liu
- Beijing National Laboratory for Condensed Matter Physics and State Key Laboratory of Magnetism , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , P. R. China
- School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Fengxia Hu
- Beijing National Laboratory for Condensed Matter Physics and State Key Laboratory of Magnetism , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , P. R. China
- School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Jirong Sun
- Beijing National Laboratory for Condensed Matter Physics and State Key Laboratory of Magnetism , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , P. R. China
- School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Baogen Shen
- Beijing National Laboratory for Condensed Matter Physics and State Key Laboratory of Magnetism , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , P. R. China
- School of Physical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
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25
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Cheng K, Zhu K, Liu S, Li M, Huang J, Yu L, Xia Z, Zhu C, Liu X, Li W, Lu W, Wei F, Zhou Y, Zheng W, Mu S. A Spatially Confined gC 3N 4-Pt Electrocatalyst with Robust Stability. ACS Appl Mater Interfaces 2018; 10:21306-21312. [PMID: 29856588 DOI: 10.1021/acsami.8b03832] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Metal catalysts (e.g., Pt) have a variety of applications in energy conversion devices including polymer electrolyte fuel cells (PEFCs); however, they commonly confront a crucial issue of poor stability. Herein, a structural model of spatially confining supported Pt nanoparticles is determined to improve the stability of metal catalysts, wherein graphitic carbon nitride (gC3N4) supported Pt nanoparticles (gC3N4-Pt) are spatially confined by carbon nanospheres (CNSs). The resulting CNSs-Pt/gC3N4 catalyst demonstrates a surprising retention rate of electrochemical surface area as high as 85.0%, much higher than that of the commercial Pt/C catalyst (45.2%), and the half-wave potential is reduced by only 11 mV compared with 54 mV for Pt/C after 6000 scanning cycles. In addition, CNSs also serve as a conductive agent to increase electron transfer pathways on Pt surfaces, and the unique spatial confinement structure with an open framework ensures the mass transfer. Moreover, the methanol oxidation reaction (MOR) activity of CNSs-Pt/gC3N4 gets elevated by 2.1 times that of Pt/C in terms of the anodic peak current. The stabilized catalyst model and its derivative structures can be applied to various metal catalyst systems.
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Affiliation(s)
- Kun Cheng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan , Hubei 430056 , P. R. China
| | | | | | | | | | | | | | | | - Xiaobo Liu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan , Hubei 430056 , P. R. China
| | | | | | | | | | - Wanquan Zheng
- Institut des Sciences Moléculaires d'Orsay , Université Paris-Sud , 91405 Orsay Cedex , France
| | - Shichun Mu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan , Hubei 430056 , P. R. China
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26
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Wilmoth JL, Doak PW, Timm A, Halsted M, Anderson JD, Ginovart M, Prats C, Portell X, Retterer ST, Fuentes-Cabrera M. A Microfluidics and Agent-Based Modeling Framework for Investigating Spatial Organization in Bacterial Colonies: The Case of Pseudomonas Aeruginosa and H1-Type VI Secretion Interactions. Front Microbiol 2018; 9:33. [PMID: 29467721 PMCID: PMC5808251 DOI: 10.3389/fmicb.2018.00033] [Citation(s) in RCA: 18] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 01/09/2018] [Indexed: 12/17/2022] Open
Abstract
The factors leading to changes in the organization of microbial assemblages at fine spatial scales are not well characterized or understood. However, they are expected to guide the succession of community development and function toward specific outcomes that could impact human health and the environment. In this study, we put forward a combined experimental and agent-based modeling framework and use it to interpret unique spatial organization patterns of H1-Type VI secretion system (T6SS) mutants of P. aeruginosa under spatial confinement. We find that key parameters, such as T6SS-mediated cell contact and lysis, spatial localization, relative species abundance, cell density and local concentrations of growth substrates and metabolites are influenced by spatial confinement. The model, written in the accessible programming language NetLogo, can be adapted to a variety of biological systems of interest and used to simulate experiments across a broad parameter space. It was implemented and run in a high-throughput mode by deploying it across multiple CPUs, with each simulation representing an individual well within a high-throughput microwell array experimental platform. The microfluidics and agent-based modeling framework we present in this paper provides an effective means by which to connect experimental studies in microbiology to model development. The work demonstrates progress in coupling experimental results to simulation while also highlighting potential sources of discrepancies between real-world experiments and idealized models.
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Affiliation(s)
- Jared L Wilmoth
- Oak Ridge National Laboratory, Biosciences Division, Oak Ridge, TN, United States
| | - Peter W Doak
- Computational Sciences and Engineering Division, Oak Ridge, TN, United States
| | - Andrea Timm
- Oak Ridge National Laboratory, Biosciences Division, Oak Ridge, TN, United States
| | - Michelle Halsted
- The Bredesen Center, University of Tennessee, Knoxville, TN, United States
| | - John D Anderson
- The Bredesen Center, University of Tennessee, Knoxville, TN, United States
| | - Marta Ginovart
- Department of Mathematics, Universitat Politecnica de Catalunya, Barcelona, Spain
| | - Clara Prats
- Department of Physics, Universitat Politecnica de Catalunya, Barcelona, Spain
| | - Xavier Portell
- School of Water, Energy and Environment, Cranfield University, Cranfield, United Kingdom
| | - Scott T Retterer
- Oak Ridge National Laboratory, Biosciences Division, Oak Ridge, TN, United States.,Computational Sciences and Engineering Division, Oak Ridge, TN, United States
| | - Miguel Fuentes-Cabrera
- Computational Sciences and Engineering Division, Oak Ridge, TN, United States.,Computational Sciences and Engineering Division, Oak Ridge, TN, United States
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27
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Wen R, Lan Z, Peng B, Xu W, Yang R, Ma X. Wetting Transition of Condensed Droplets on Nanostructured Superhydrophobic Surfaces: Coordination of Surface Properties and Condensing Conditions. ACS Appl Mater Interfaces 2017; 9:13770-13777. [PMID: 28362085 DOI: 10.1021/acsami.7b01812] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nanostructured superhydrophobic surfaces have been actively explored to promote favorable droplet dynamics for a wide range of technological applications. However, the tendency of condensed droplets to form as pinned states greatly limits their applicability in enhancing condensation heat transfer efficiency. Despite recent progresses, the understanding of physical mechanisms governing the wetting transition of condensed droplets is still lacking. In this work, a nanostructured superhydrophobic surface with tapered nanogaps is fabricated to demonstrate the coordination of surface wetting property, topography, and the condensing condition on the wetting state and dynamic behavior of condensed droplets. Combining the environmental scanning electron microscopy and optical visualization methods, we systematically show the morphology of nucleated droplets in nanostructures and the droplet dynamic evolution throughout the growth stages, which provides the direct evidence of condensing condition-induced droplet wetting transition. When the surface subcooling is smaller than 0.3 K, the droplets formed as the Cassie-Baxter state, followed by coalescence-induced droplet jumping. With the increase of surface subcooling up to 0.6 K, however, droplet formation occurs randomly inside nanogaps, resulting in the loss of superhydrophobicity. These new observations along with the new insights about the coordination of surface properties and condensing conditions on droplet wetting transition are useful for guiding the development of novel surfaces for improving droplet removal and phase-change heat transfer.
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Affiliation(s)
- Rongfu Wen
- State Key Laboratory of Fine Chemicals & Liaoning Key Laboratory of Clean Utilization of Chemical Resources, Institute of Chemical Engineering, Dalian University of Technology , Dalian 116024, P. R. China
- Department of Mechanical Engineering, University of Colorado Boulder , Boulder, Colorado 80309-0427, United States
| | - Zhong Lan
- State Key Laboratory of Fine Chemicals & Liaoning Key Laboratory of Clean Utilization of Chemical Resources, Institute of Chemical Engineering, Dalian University of Technology , Dalian 116024, P. R. China
| | - Benli Peng
- State Key Laboratory of Fine Chemicals & Liaoning Key Laboratory of Clean Utilization of Chemical Resources, Institute of Chemical Engineering, Dalian University of Technology , Dalian 116024, P. R. China
| | - Wei Xu
- State Key Laboratory of Fine Chemicals & Liaoning Key Laboratory of Clean Utilization of Chemical Resources, Institute of Chemical Engineering, Dalian University of Technology , Dalian 116024, P. R. China
| | - Ronggui Yang
- Department of Mechanical Engineering, University of Colorado Boulder , Boulder, Colorado 80309-0427, United States
| | - Xuehu Ma
- State Key Laboratory of Fine Chemicals & Liaoning Key Laboratory of Clean Utilization of Chemical Resources, Institute of Chemical Engineering, Dalian University of Technology , Dalian 116024, P. R. China
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28
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Abstract
We report a simple and practical method for creating colloidal patchy particles with a variety of three-dimensional shapes via the evaporation-induced assembly of polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) block copolymer (BCP) in an oil-in-water emulsion. Depending on the particle volume, a series of patchy particles in the shapes of snowmen, dumbbells, triangles, tetrahedra, and raspberry can be prepared, which are then precisely tuned by modulating the interfacial interaction at the particle/water interface using a mixture of two different surfactants. Moreover, for a given interfacial interaction, the stretching penalty of the BCPs in the patchy particles can be systematically controlled by adding P4VP homopolymers, which decreases the number of patches of soft particles from multiple patches to a single patch but increases the size of the patch. Calculations based on the strong segregation theory supported the experimental observation of various soft patchy particles and identified the underlying principles of their formation with tunable 3D structures.
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Affiliation(s)
| | | | - Gi-Ra Yi
- School of Chemical Engineering, Sungkyunkwan University , Suwon 440-746, Republic of Korea
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29
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Koch B, Meyer AK, Helbig L, Harazim SM, Storch A, Sanchez S, Schmidt OG. Dimensionality of Rolled-up Nanomembranes Controls Neural Stem Cell Migration Mechanism. Nano Lett 2015; 15:5530-8. [PMID: 26161791 PMCID: PMC4538455 DOI: 10.1021/acs.nanolett.5b02099] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
We employ glass microtube structures fabricated by rolled-up nanotechnology to infer the influence of scaffold dimensionality and cell confinement on neural stem cell (NSC) migration. Thereby, we observe a pronounced morphology change that marks a reversible mesenchymal to amoeboid migration mode transition. Space restrictions preset by the diameter of nanomembrane topography modify the cell shape toward characteristics found in living tissue. We demonstrate the importance of substrate dimensionality for the migration mode of NSCs and thereby define rolled-up nanomembranes as the ultimate tool for single-cell migration studies.
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Affiliation(s)
- Britta Koch
- Institute
for Integrative Nanosciences, Leibniz Institute
for Solid State and Materials Research Dresden, D-01069 Dresden, Germany
- E-mail:
| | - Anne K. Meyer
- Institute
for Integrative Nanosciences, Leibniz Institute
for Solid State and Materials Research Dresden, D-01069 Dresden, Germany
- Division
of Neurodegenerative Diseases, Department of Neurology, Technische Universität Dresden, D-01307 Dresden, Germany
| | - Linda Helbig
- Institute
for Integrative Nanosciences, Leibniz Institute
for Solid State and Materials Research Dresden, D-01069 Dresden, Germany
| | - Stefan M. Harazim
- Institute
for Integrative Nanosciences, Leibniz Institute
for Solid State and Materials Research Dresden, D-01069 Dresden, Germany
| | - Alexander Storch
- Division
of Neurodegenerative Diseases, Department of Neurology, Technische Universität Dresden, D-01307 Dresden, Germany
- German Center for
Neurodegenerative Diseases (DZNE) Dresden, D-01307 Dresden, Germany
- Center
for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, D-01307 Dresden, Germany
| | - Samuel Sanchez
- Institute
for Integrative Nanosciences, Leibniz Institute
for Solid State and Materials Research Dresden, D-01069 Dresden, Germany
- Max Planck Institute
for Intelligent Systems, D-70569 Stuttgart, Germany
| | - Oliver G. Schmidt
- Institute
for Integrative Nanosciences, Leibniz Institute
for Solid State and Materials Research Dresden, D-01069 Dresden, Germany
- Material
Systems for Nanoelectronics, Technische
Universität Chemnitz, D-09107 Chemnitz, Germany
- Center
for
Advancing Electronics Dresden, Technische
Universität Dresden, D-01187 Dresden, Germany
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30
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Xi W, Schmidt CK, Sanchez S, Gracias DH, Carazo-Salas RE, Jackson SP, Schmidt O. Rolled-up functionalized nanomembranes as three-dimensional cavities for single cell studies. Nano Lett 2014; 14:4197-204. [PMID: 24598026 PMCID: PMC4133182 DOI: 10.1021/nl4042565] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Revised: 02/24/2014] [Indexed: 05/17/2023]
Abstract
We use micropatterning and strain engineering to encapsulate single living mammalian cells into transparent tubular architectures consisting of three-dimensional (3D) rolled-up nanomembranes. By using optical microscopy, we demonstrate that these structures are suitable for the scrutiny of cellular dynamics within confined 3D-microenvironments. We show that spatial confinement of mitotic mammalian cells inside tubular architectures can perturb metaphase plate formation, delay mitotic progression, and cause chromosomal instability in both a transformed and nontransformed human cell line. These findings could provide important clues into how spatial constraints dictate cellular behavior and function.
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Affiliation(s)
- Wang Xi
- Institute
for Integrative Nanosciences, IFW Dresden, Helmholtzstrasse 20, D-01069 Dresden, Germany
- Max
Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany
| | - Christine K. Schmidt
- The
Gurdon Institute and Departments of Biochemistry and Genetics, University of Cambridge, Tennis Court Road, Cambridge CB2 1QN, United Kingdom
| | - Samuel Sanchez
- Institute
for Integrative Nanosciences, IFW Dresden, Helmholtzstrasse 20, D-01069 Dresden, Germany
- Max
Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany
| | - David H. Gracias
- Department
of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Rafael E. Carazo-Salas
- The
Gurdon Institute and Departments of Biochemistry and Genetics, University of Cambridge, Tennis Court Road, Cambridge CB2 1QN, United Kingdom
| | - Stephen P. Jackson
- The
Gurdon Institute and Departments of Biochemistry and Genetics, University of Cambridge, Tennis Court Road, Cambridge CB2 1QN, United Kingdom
- The
Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1SA, United Kingdom
| | - Oliver
G. Schmidt
- Institute
for Integrative Nanosciences, IFW Dresden, Helmholtzstrasse 20, D-01069 Dresden, Germany
- Material
Systems for Nanoelectronics, Chemnitz University
of Technology, Reichenhainer
Strasse 70, D-09107 Chemnitz, Germany
- Center
for Advancing Electronics Dresden, Dresden
University of Technology, Georg-Schumann-Str. 11, 01187 Dresden, Germany
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31
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Abstract
The amount and type of self-entanglement of DNA filaments is significantly affected by spatial confinement, which is ubiquitous in biological systems. Motivated by recent advancements in single DNA molecule experiments based on nanofluidic devices and by the introduction of algorithms capable of detecting knots in open chains, we investigate numerically the entanglement of linear, open DNA chains confined inside nano-slits. The results regard the abundance, type, and length of occurring knots and are compared with recent findings for DNA inside nano-channels. In both cases, the width of the confining region, D, spans the 30 nm-1 μm range and the confined DNA chains are 1-4 μm long. It is found that the knotting probability is maximum for slit widths in the 70-100 nm range. However, over the considered DNA contour lengths, the maximum incidence of knots remains below 20%, while for channel confinement it tops 50%. Further differences of the entanglement are seen for the average contour length of the knotted region, which drops significantly below D ~100 nm for channel-confinement, while it stays approximately constant for slit-like confinement. These properties ought to reverberate in different kinetic properties of linear DNA depending on confinement and could be detectable experimentally or exploitable in nano-technological applications.
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Affiliation(s)
- Enzo Orlandini
- />Dipartimento di Fisica e Astronomia and Sezione INFN, Università di Padova, Via Marzolo 8, 35131 Padova, Italy
| | - Cristian Micheletti
- />SISSA - Scuola Internazionale Superiore di Studi Avanzati and CNR-IOM Democritos, Via Bonomea 265, 34136 Trieste, Italy
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32
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Steppan J, Ryoo S, Schuleri KH, Gregg C, Hasan RK, White AR, Bugaj LJ, Khan M, Santhanam L, Nyhan D, Shoukas AA, Hare JM, Berkowitz DE. Arginase modulates myocardial contractility by a nitric oxide synthase 1-dependent mechanism. Proc Natl Acad Sci U S A 2006; 103:4759-64. [PMID: 16537391 PMCID: PMC1450243 DOI: 10.1073/pnas.0506589103] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2005] [Indexed: 12/14/2022] Open
Abstract
Cardiac myocytes contain two constitutive NO synthase (NOS) isoforms with distinct spatial locations, which allows for isoform-specific regulation. One regulatory mechanism for NOS is substrate (l-arginine) bioavailability. We tested the hypothesis that arginase (Arg), which metabolizes l-arginine, constrains NOS activity in the cardiac myocyte in an isoform-specific manner. Arg activity was detected in both rat heart homogenates and isolated myocytes. Although both Arg I and II mRNA and protein were present in whole heart, Arg II alone was found in isolated myocytes. Arg inhibition with S-(2-boronoethyl)-l-cysteine (BEC) augmented Ca(2+)-dependent NOS activity and NO production in myocytes, which did not depend on extracellular l-arginine. Arg II coimmunoprecipited with NOS1 but not NOS3. Isolation of myocyte mitochondrial fractions in combination with immuno-electron microscopy demonstrates that Arg II is confined primarily to the mitochondria. Because NOS1 positively modulates myocardial contractility, we determined whether Arg inhibition would increase basal myocardial contractility. Consistent with our hypothesis, Arg inhibition increased basal contractility in isolated myocytes by a NOS-dependent mechanism. Both the Arg inhibitors N-hydroxy-nor-l-arginine and BEC dose-dependently increased basal contractility in rat myocytes, which was inhibited by both nonspecific and NOS1-specific NOS inhibitors N(G)-nitro-l-arginine methyl ester and S-methyl-l-thiocitrulline, respectively. Also, BEC increased contractility in isolated myocytes from WT and NOS3 but not NOS1 knockout mice. We conclude that mitochondrial Arg II negatively regulates NOS1 activity, most likely by limiting substrate availability in its microdomain. These findings have implications for therapy in pathophysiologic states such as aging and heart failure in which myocardial NO signaling is disrupted.
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Affiliation(s)
- Jochen Steppan
- Departments of Anesthesiology and Critical Care Medicine, Medicine, and Biomedical Engineering, and Institute for Cell Engineering, The Johns Hopkins Medical Institutions, Baltimore, MD 21287
| | - Sungwoo Ryoo
- Departments of Anesthesiology and Critical Care Medicine, Medicine, and Biomedical Engineering, and Institute for Cell Engineering, The Johns Hopkins Medical Institutions, Baltimore, MD 21287
| | - Karl H. Schuleri
- Departments of Anesthesiology and Critical Care Medicine, Medicine, and Biomedical Engineering, and Institute for Cell Engineering, The Johns Hopkins Medical Institutions, Baltimore, MD 21287
| | - Chris Gregg
- Departments of Anesthesiology and Critical Care Medicine, Medicine, and Biomedical Engineering, and Institute for Cell Engineering, The Johns Hopkins Medical Institutions, Baltimore, MD 21287
| | - Rani K. Hasan
- Departments of Anesthesiology and Critical Care Medicine, Medicine, and Biomedical Engineering, and Institute for Cell Engineering, The Johns Hopkins Medical Institutions, Baltimore, MD 21287
| | - A. Ron White
- Departments of Anesthesiology and Critical Care Medicine, Medicine, and Biomedical Engineering, and Institute for Cell Engineering, The Johns Hopkins Medical Institutions, Baltimore, MD 21287
| | - Lukasz J. Bugaj
- Departments of Anesthesiology and Critical Care Medicine, Medicine, and Biomedical Engineering, and Institute for Cell Engineering, The Johns Hopkins Medical Institutions, Baltimore, MD 21287
| | - Mehnaz Khan
- Departments of Anesthesiology and Critical Care Medicine, Medicine, and Biomedical Engineering, and Institute for Cell Engineering, The Johns Hopkins Medical Institutions, Baltimore, MD 21287
| | - Lakshmi Santhanam
- Departments of Anesthesiology and Critical Care Medicine, Medicine, and Biomedical Engineering, and Institute for Cell Engineering, The Johns Hopkins Medical Institutions, Baltimore, MD 21287
| | - Daniel Nyhan
- Departments of Anesthesiology and Critical Care Medicine, Medicine, and Biomedical Engineering, and Institute for Cell Engineering, The Johns Hopkins Medical Institutions, Baltimore, MD 21287
| | - Artin A. Shoukas
- Departments of Anesthesiology and Critical Care Medicine, Medicine, and Biomedical Engineering, and Institute for Cell Engineering, The Johns Hopkins Medical Institutions, Baltimore, MD 21287
| | - Joshua M. Hare
- Departments of Anesthesiology and Critical Care Medicine, Medicine, and Biomedical Engineering, and Institute for Cell Engineering, The Johns Hopkins Medical Institutions, Baltimore, MD 21287
| | - Dan E. Berkowitz
- Departments of Anesthesiology and Critical Care Medicine, Medicine, and Biomedical Engineering, and Institute for Cell Engineering, The Johns Hopkins Medical Institutions, Baltimore, MD 21287
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