1
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Guo P, Ying Y, Liu D. One Scalable and Stable Metal-Organic Framework for Efficient Separation of CH 4/N 2 Mixture. ACS Appl Mater Interfaces 2024; 16:7338-7344. [PMID: 38301114 DOI: 10.1021/acsami.3c18378] [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: 02/03/2024]
Abstract
Separating CH4 from coal bed methane is of great importance but challenging. Adsorption-based separation often suffers from low selectivity, poor stability, and difficulty to scale up. Herein, a stable and scalable metal-organic framework [MOF, CoNi(pyz-NH2)] with multiple CH4 binding sites was reported to efficiently separate the CH4/N2 mixture. Due to its suitable pore size and multiple CH4 binding sites, it exhibits excellent CH4/N2 selectivity (16.5) and CH4 uptake (35.9 cm3/g) at 273 K and 1 bar, which is comparable to that of the state-of-the-art MOFs. Theoretical calculations reveal that the high density of open metal sites and polar functional groups in the pores provide strong affinity to CH4 than to N2. Moreover, CoNi(pyz-NH2) displays excellent structural stability and can be scale-up synthesized (22.7 g). This work not only provides an excellent adsorbent but also provides important inspiration for the future design and preparation of porous adsorbents for separations.
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Affiliation(s)
- Pengtao Guo
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yunpan Ying
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Dahuan Liu
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- College of Chemical Engineering, Qinghai University, Xining 810016, China
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2
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Shi D, Li H, Yu X, Zhang Z, Yuan YD, Fan W, Yuan H, Ying Y, Yang H, Shang C, Imbrogno J, Zhao D. Intercrystalline Channels at Subnanometer Scale for Precise Molecular Nanofiltration. J Am Chem Soc 2023. [PMID: 37436791 DOI: 10.1021/jacs.3c02711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
Membrane-based technologies can provide cost-effective and energy-efficient methods for various separation processes. The key goal is to develop materials with uniform, tunable, and well-defined subnanometer-scale channels. Suitable membrane materials should have high selectivity and permeance and can be manufactured in a robust and scalable fashion. Here, we report the construction of sub-1 nm intercrystalline channels with such characteristics and elucidate their transport properties. These channels are formed by assembling 3D aluminum formate crystals during the amorphous-to-crystalline transformation process. By controlling the transformation time, the channel size can be tuned from the macroscopic scale to nanometer scale. The resulting membranes exhibit tailored selectivity and permeance, with molecular weight cutoffs ranging from around 300 Da to approximately 650 Da, and ethanol permeance ranging from 0.8 to 22.0 L m-2 h-1 bar-1. We further show that liquid flow through these channels changes from viscosity-dominated continuum flow to subcontinuum flow, which can be described by a modified Hagen-Poiseuille model. Our strategy provides a new scalable platform for applications that commonly exploit nanoscale mass transport.
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Affiliation(s)
- Dongchen Shi
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - He Li
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Xin Yu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Zhaoqiang Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Yi Di Yuan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Weidong Fan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Hongye Yuan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Yunpan Ying
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Hao Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Chuning Shang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Joseph Imbrogno
- Chemical Research & Development, Pfizer Worldwide Research & Development, Groton, Connecticut 06340, United States
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
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3
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Huize C, Ying Y, Jingrong N, Kwak JM, Meiting D. Analysis of Brachypodium distachyon UVR8 reveals conservation in UV-B receptors. Plant Biol (Stuttg) 2023. [PMID: 37073564 DOI: 10.1111/plb.13526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 04/03/2023] [Indexed: 05/03/2023]
Abstract
The Ultraviolet Resistance Locus 8 (UVR8) in plants recognizes Ultraviolet-B (UV-B) and plays a crucial role by regulating plant growth through a series of signal transduction events. However, the UVR8 in monocotyledon crops has not been systematically analyzed. We identified BdUVR8 (BRADI_3g45740) from the genome of Brachypodium distachyon, a relative of wheat, by analyzing the phylogenetic tree, gene expression pattern, detecting the accumulation of UV-B response metabolites, and check the phenotype recovery. The BdUVR8 protein sequence is similar to the known UVR8 of other species. The phylogenetic tree of UVR8 shows clear divergence between dicotyledons and monocotyledons. The expression analysis reveals that UV-B down-regulates BdUVR8 by 70% and up-regulates the chalcone synthase (BdCHS) gene 3.4-folds in B. distachyon. The pCAMBIA1300::BdUVR8-mCherry construct introduced into Arabidopsis uvr8 mutants shows that BdUVR8 protein localized in the cytoplasm translocates into the nucleus in response to UV-B irradiation. The introduction of BdUVR8 into uvr8 rescued the hypocotyl elongation by UV-B and restored the expression of HY5, Chalcone synthase, and Flavanone 3-hydroxylase as well as the accumulation of total flavonoids. Altogether, our results show that BdUVR8 is a photoreceptor that perceives UV-B in B. distachyon.
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Affiliation(s)
- C Huize
- Higher Education Key Laboratory of Plant Molecular and Environment Stress Response (Shanxi Normal University) in Shanxi Province, TaiYuan, P.R., China
- School of Life Sciences, Shanxi Normal University, TaiYuan, P.R., China
| | - Y Ying
- Higher Education Key Laboratory of Plant Molecular and Environment Stress Response (Shanxi Normal University) in Shanxi Province, TaiYuan, P.R., China
- School of Life Sciences, Shanxi Normal University, TaiYuan, P.R., China
| | - N Jingrong
- Higher Education Key Laboratory of Plant Molecular and Environment Stress Response (Shanxi Normal University) in Shanxi Province, TaiYuan, P.R., China
- School of Life Sciences, Shanxi Normal University, TaiYuan, P.R., China
| | - J M Kwak
- Department of New Biology, DGIST, Daegu, 42988, Republic of Korea
| | - D Meiting
- School of Life Sciences, Shanxi Normal University, TaiYuan, P.R., China
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4
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Yang Z, Ying Y, Pu Y, Wang D, Yang H, Zhao D. Poly(ionic liquid)-Functionalized UiO-66-(OH) 2: Improved Interfacial Compatibility and Separation Ability in Mixed Matrix Membranes for CO 2 Separation. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04648] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ziqi Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Yunpan Ying
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Yunchuan Pu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
| | - Dechao Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710129, China
| | - Hao Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
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5
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Ying Y, Peh SB, Yang H, Yang Z, Zhao D. Ultrathin Covalent Organic Framework Membranes via a Multi-Interfacial Engineering Strategy for Gas Separation. Adv Mater 2022; 34:e2104946. [PMID: 34535914 DOI: 10.1002/adma.202104946] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/03/2021] [Indexed: 06/13/2023]
Abstract
Covalent organic frameworks (COFs) are promising membrane materials due to their high porosity, ordered arrangements, and high stability. However, the relatively large pore size and complicated membrane preparation processes of COFs limit their applications in sieving small gas molecules, even at a lab scale. Herein, a multi-interfacial engineering strategy is proposed, that is, direct layer-by-layer interfacial reaction of two COFs (TpPa-SO3 H and TpTGCl ) with different pore sizes to form narrowed apertures at the COF-COF interfaces atop a relatively large-pore COF (COF-LZU1) film. At 423 K, one fabricated 155 nm-thick ultrathin COF membrane displays H2 permeance as high as 2163 gas permeation units (GPU) and a H2 /CO2 selectivity of 26, transcending the 2008 Robeson upper bound. This strategy not only provides high-performance membrane candidates for H2 separation, but also enlightens the interfacial engineering and pore engineering manipulation for other COFs, porous polymers, and their membranes.
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Affiliation(s)
- Yunpan Ying
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Shing Bo Peh
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Hao Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Ziqi Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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6
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Huang Z, Hu P, Liu J, Shen F, Zhang Y, Chai K, Ying Y, Kang C, Zhang Z, Ji H. Enhancing CH4/N2 separation performance within aluminum-based Metal-Organic Frameworks: Influence of the pore structure and linker polarity. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120446] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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7
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Fan W, Ying Y, Peh SB, Yuan H, Yang Z, Yuan YD, Shi D, Yu X, Kang C, Zhao D. Multivariate Polycrystalline Metal-Organic Framework Membranes for CO 2/CH 4 Separation. J Am Chem Soc 2021; 143:17716-17723. [PMID: 34608802 DOI: 10.1021/jacs.1c08404] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Membrane technology is attractive for natural gas separation (removing CO2, H2O, and hydrocarbons from CH4) because of membranes' low energy consumption and small environmental footprint. Compared to polymeric membranes, microporous inorganic membranes such as silicoaluminophosphate-34 (SAPO-34) membrane can retain their separation performance under conditions close to industrial requirements. However, moisture and hydrocarbons in natural gas can be strongly adsorbed in the pores of those membranes, thereby reducing the membrane separation performance. Herein, we report the fabrication of a polycrystalline MIL-160 membrane on an Al2O3 substrate by in situ hydrothermal synthesis. The MIL-160 membrane with a thickness of ca. 3 μm shows a remarkable molecular sieving effect in gas separation. Besides, the pore size and environment of the MIL-160 membrane can be precisely controlled using reticular chemistry by regulating the size and functionality of the ligand. Interestingly, the more polar fluorine-functionalized multivariate MIL-160/CAU-10-F membrane exhibits a 10.7% increase in selectivity for CO2/CH4 separation and a 31.2% increase in CO2 permeance compared to those of the MIL-160 membrane. In addition, hydrophobic MIL-160 membranes and MIL-160/CAU-10-F membranes are more resistant to water vapor and hydrocarbons than the hydrophilic SAPO-34 membranes.
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Affiliation(s)
- Weidong Fan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585 Singapore
| | - Yunpan Ying
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585 Singapore
| | - Shing Bo Peh
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585 Singapore
| | - Hongye Yuan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585 Singapore
| | - Ziqi Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585 Singapore
| | - Yi Di Yuan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585 Singapore
| | - Dongchen Shi
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585 Singapore
| | - Xin Yu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585 Singapore
| | - Chengjun Kang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585 Singapore
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585 Singapore
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8
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Ying Y, Yang Z, Shi D, Peh SB, Wang Y, Yu X, Yang H, Chai K, Zhao D. Ultrathin covalent organic framework film as membrane gutter layer for high-permeance CO2 capture. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119384] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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9
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10
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Abstract
In order to explore the mechanism of gefitinib-acquired resistance in lung cancer, a new biomarker has been developed for early clinical diagnosis and intervention; human NSCLC (Non-Small Cell Lung Cancer) cell lines H292 (denoted as H292S) and PC9 (denoted as PC9S) were used to establish gefitinib-resistant NSCLC cell lines H292 and PC9 models. CCK-8 (Cell Counting Kit-8) method was used to test the drug resistance of the cells. circRNAs (circular RNAs) that were differentially expressed before and after resistance were screened by RNA sequencing technology. The effects of circSETD3 overexpression and interference on the sensitivity of gefitinib was observed to analyze the nuclear localization of circSETD3 and verify the interaction between circSETD3-miR-520h-ABCG2. The results showed that the most significant change in differential expression of human NSCLC cell lines before and after drug resistance was hsa_circ_0000567, that is, circSETD3, which is mainly present in the cytoplasm. In H292S and PC9S, compared with the negative control group, the cell proliferation ability of the overexpression group was significantly increased, and the apoptosis ability was significantly decreased. In H292R and PC9R, compared with the negative control group, the proliferation ability of the interference group was significantly decreased, and the apoptosis ability was significantly increased. Overexpression of circSETD3 to H292S and PC9S, the expression of ABCG2 increased significantly. Also, the expression of ABCG2 decreased significantly after transfection with miR-520h mimics. H292R and PC9R interfered with circSETD3, the expression of ABCG2 decreased significantly. Moreover, the expression of ABCG2 increased significantly after transfection with miR-520h inhibitor. In conclusion, circSETD3 can be used as a novel biomarker for lung cancer. It relieves miR-520h degradation of the transporter ABCG2 by down-regulating the miR-520h expression, causing gefitinib to be pumped out of the cell.
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Affiliation(s)
- F Tao
- Department of Respiratory Medicine, The Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, China
| | - C Gu
- Department of Respiratory Medicine, The Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, China
| | - N Li
- Department of Respiratory Medicine, The Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, China
| | - Y Ying
- Department of Respiratory Medicine, The Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, China
| | - L F Cao
- Department of Respiratory Medicine, The Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, China
| | - Q F Xiao
- Department of Respiratory Medicine, The Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, China
| | - D Ni
- Department of Respiratory Medicine, The Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, China
| | - Y B Zhuang
- Department of Respiratory Medicine, The Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, China
| | - Q Zhang
- Department of Respiratory Medicine, The Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, China
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11
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Ying Y, Zhang Z, Peh SB, Karmakar A, Cheng Y, Zhang J, Xi L, Boothroyd C, Lam YM, Zhong C, Zhao D. Innenrücktitelbild: Pressure‐Responsive Two‐Dimensional Metal–Organic Framework Composite Membranes for CO
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Separation (Angew. Chem. 20/2021). Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yunpan Ying
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Zhengqing Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes Tiangong University Tianjin 300387 China
| | - Shing Bo Peh
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Avishek Karmakar
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Youdong Cheng
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Jian Zhang
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Lifei Xi
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS) Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Chris Boothroyd
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS) Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Yeng Ming Lam
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS) Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Chongli Zhong
- State Key Laboratory of Separation Membranes and Membrane Processes Tiangong University Tianjin 300387 China
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
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12
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Ying Y, Zhang Z, Peh SB, Karmakar A, Cheng Y, Zhang J, Xi L, Boothroyd C, Lam YM, Zhong C, Zhao D. Inside Back Cover: Pressure‐Responsive Two‐Dimensional Metal–Organic Framework Composite Membranes for CO
2
Separation (Angew. Chem. Int. Ed. 20/2021). Angew Chem Int Ed Engl 2021. [DOI: 10.1002/anie.202103672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yunpan Ying
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Zhengqing Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes Tiangong University Tianjin 300387 China
| | - Shing Bo Peh
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Avishek Karmakar
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Youdong Cheng
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Jian Zhang
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Lifei Xi
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS) Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Chris Boothroyd
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS) Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Yeng Ming Lam
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS) Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Chongli Zhong
- State Key Laboratory of Separation Membranes and Membrane Processes Tiangong University Tianjin 300387 China
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
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13
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Ying Y, Zhang Z, Peh SB, Karmakar A, Cheng Y, Zhang J, Xi L, Boothroyd C, Lam YM, Zhong C, Zhao D. Pressure-Responsive Two-Dimensional Metal-Organic Framework Composite Membranes for CO 2 Separation. Angew Chem Int Ed Engl 2021; 60:11318-11325. [PMID: 33599088 DOI: 10.1002/anie.202017089] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/13/2021] [Indexed: 11/06/2022]
Abstract
The regulation of permeance and selectivity in membrane systems may allow effective relief of conventional energy-intensive separations. Here, pressure-responsive ultrathin membranes (≈100 nm) fabricated by compositing flexible two-dimensional metal-organic framework nanosheets (MONs) with graphene oxide nanosheets for CO2 separation are reported. By controlling the gas permeation direction to leverage the pressure-responsive phase transition of the MONs, CO2 -induced gate opening and closing behaviors are observed in the resultant membranes, which are accompanied with the sharp increase of CO2 permeance (from 173.8 to 1144 gas permeation units) as well as CO2 /N2 and CO2 /CH4 selectivities (from 4.1 to 22.8 and from 4 to 19.6, respectively). The flexible behaviors and separation mechanism are further elucidated by molecular dynamics simulations. This work establishes the relevance of structural transformation-based framework dynamics chemistry in smart membrane systems.
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Affiliation(s)
- Yunpan Ying
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Zhengqing Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
| | - Shing Bo Peh
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Avishek Karmakar
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Youdong Cheng
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Jian Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Lifei Xi
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS), Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Chris Boothroyd
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS), Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Yeng Ming Lam
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS), Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Chongli Zhong
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
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14
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Wang T, Chang M, Yan T, Ying Y, Yang Q, Liu D. Calcium-Based Metal–Organic Framework for Efficient Capture of Sulfur Hexafluoride at Low Concentrations. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00662] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tongge Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Miao Chang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Tongan Yan
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yunpan Ying
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117585 Singapore
| | - Qingyuan Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Dahuan Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
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15
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Ying Y, Zhang Z, Peh SB, Karmakar A, Cheng Y, Zhang J, Xi L, Boothroyd C, Lam YM, Zhong C, Zhao D. Pressure‐Responsive Two‐Dimensional Metal–Organic Framework Composite Membranes for CO
2
Separation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017089] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yunpan Ying
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Zhengqing Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes Tiangong University Tianjin 300387 China
| | - Shing Bo Peh
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Avishek Karmakar
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Youdong Cheng
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Jian Zhang
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Lifei Xi
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS) Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Chris Boothroyd
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS) Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Yeng Ming Lam
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS) Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Chongli Zhong
- State Key Laboratory of Separation Membranes and Membrane Processes Tiangong University Tianjin 300387 China
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
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16
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Cai Y, Shi D, Liu G, Ying Y, Cheng Y, Wang Y, Chen D, Lu J, Zhao D. Polycrystalline zirconium metal-organic framework membranes supported on flexible carbon cloth for organic solvent nanofiltration. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118551] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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17
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Shetty S, Malik H, Abbas A, Ying Y, Aronow W, Briasoulis A. Impact of acute kidney injury on in-hospital outcomes among patients hospitalized with acute heart failure: a propensity score matched analysis. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Acute kidney injury (AKI) is frequently present in patients admitted for acute heart failure (AHF). Several studies have evaluated the mortality risk and have concluded poor prognosis in any patient with AKI admitted for AHF. For the most part, the additional morbidity and mortality burden in AHF patients with AKI has been attributed to the concomitant comorbidities, and/or interventions.
Purpose
We sought to determine the impact of acute kidney injury (AKI) on in-hospital outcomes in patients presenting with acute heart failure (AHF). We identified isolated AKI patients after excluding other concomitant diagnoses and procedures, which may contribute to an increased risk of mortality and morbidity.
Methods
Data from the National Inpatient Sample (2012- 14) were used to identify patients with the principal diagnosis of AHF and the concomitant secondary diagnosis of AKI. Propensity score matching was performed on 30 baseline variables to identify a matched cohort. The outcome of interest was in-hospital mortality. We further evaluated in-hospital procedures and complications.
Results
Of 1,470,450 patients admitted with AHF, 24.3% had AKI. After propensity matching a matched cohort of 356,940 patients was identified. In this matched group, the AKI group had significantly higher in-hospital mortality (3.8% vs 1.7%, p<0.001). Complications such as sepsis and cardiac arrest were higher in the AKI group. Similarly, in-hospital procedures including CABG, mechanical ventilation and IABP were performed more in the AKI group. AHF patients with AKI had longer in-hospital stay of ∼1.7 days.
Conclusions
In a propensity score-matched cohort of AHF with and without AKI, the risk of in-hospital mortality was >2-fold in the AKI group. Healthcare utilization and burden of complications were higher in the AKI group.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- S Shetty
- University of Iowa, Iowa city, United States of America
| | - H Malik
- New York Medical College, Internal Medicine, Valhalla, United States of America
| | - A Abbas
- University of Iowa, Iowa city, United States of America
| | - Y Ying
- University of Iowa, Iowa city, United States of America
| | - W Aronow
- New York Medical College, Internal Medicine, Valhalla, United States of America
| | - A Briasoulis
- University of Iowa, Iowa city, United States of America
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18
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Zhai L, Yu X, Wang Y, Zhang J, Ying Y, Cheng Y, Peh SB, Liu G, Wang X, Cai Y, Zhao D. Polycrystalline rare-earth metal-organic framework membranes with in-situ healing ability for efficient alcohol dehydration. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118239] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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Zeng Z, Ziliang Q, Ying Y, Wang B, Ji J, Xu X. Non-invasive detection of urothelial carcinoma by cost-effective low-coverage whole genome sequencing from urine exfoliated cells DNA. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33254-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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20
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Xu DB, Lin F, He HJ, Ying Y. Protective effects and underlying mechanism of sevoflurane pretreatment on cerebral isch¬emia-reperfusion injury in mice. J BIOL REG HOMEOS AG 2020; 34:1479-1485. [PMID: 32924374 DOI: 10.23812/20-253-l] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- D B Xu
- Department of Anesthesiology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Taizhou, Zhejiang Province, China
- Department of Anesthesiology, Taizhou Enze Medical Center (Group) Enze Hospital, Taizhou, Zhejiang Province, China
| | - F Lin
- Department of Anesthesiology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Taizhou, Zhejiang Province, China
- Department of Anesthesiology, Taizhou Enze Medical Center (Group) Enze Hospital, Taizhou, Zhejiang Province, China
| | - H J He
- Department of Anesthesiology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Taizhou, Zhejiang Province, China
- Department of Anesthesiology, Taizhou Enze Medical Center (Group) Enze Hospital, Taizhou, Zhejiang Province, China
| | - Y Ying
- Department of Anesthesiology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Taizhou, Zhejiang Province, China
- Department of Anesthesiology, Taizhou Enze Medical Center (Group) Enze Hospital, Taizhou, Zhejiang Province, China
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21
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Andreen D, Salfer I, Ying Y, Reinemann D, Harvatine K. Technical note: Method for improving precision of in-parlor milk meters and adjusting milk weights for stall effects. J Dairy Sci 2020; 103:5162-5169. [DOI: 10.3168/jds.2019-17479] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 01/06/2020] [Indexed: 11/19/2022]
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22
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Ying Y, Feng X, Zhang W, Yu P. Implication of Modified Chemical Profiles of Different Seed Proteins through Heat-Related Processing to Protein Nutrition and Metabolic Characteristics in Ruminant Systems. J Agric Food Chem 2020; 68:4939-4945. [PMID: 32227938 DOI: 10.1021/acs.jafc.9b07900] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The objectives of this study were to reveal the implication of modified chemical profiles of protein in cool-season-adapted cereal seeds through heat-related processing to protein nutrition and metabolic characteristics in ruminant systems. The parameters of protein-related chemical and nutritive profiles modified by heat-related processing included (a) chemical and nutrient profiles, (b) degradation kinetics (Kd and BCP), (c) digestion (IDP and TDP), (d) degraded protein balance (DPB/OEB value), and (e) metabolizable protein (MP, DVE, and FMV values). The seeds used in this study included cool-season-adapted wheat (CSW), triticale (CST), and corn (CSC). Each grain source had 3 consecutive year-replicated samples and were subjected to different heat-related processing: dry heating (DH) and moist heating (MH). The results showed that (1) the heat-related processing significantly modified metabolic characteristics of protein in the seeds (p < 0.05), (2) in comparison to DH, MH had a dramatic improvement (p < 0.05) in protein utilization profiles (decreased rumen degradation and increased intestinal digestion), (3) the seeds had significant (p < 0.05) difference in rumen degradation and intestinal digestion, (4) among the seeds, the CSW had the highest milk value (FMV; p < 0.05) and was increased by MH application (p < 0.05), and (5) the results showed that the seeds responded independently to different heat-related processing. MH-related processing had a more profound impact on CSW and CST in chemical profiles and nutrition. The CSC had less response to the heat-related processing.
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Affiliation(s)
- Y Ying
- Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5A8, Canada
| | - X Feng
- Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5A8, Canada
- School of Life Science and Engineering, Foshan University, Foshan, Guangdong 528000, People's Republic of China
| | - W Zhang
- Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5A8, Canada
- Henan University of Animal Husbandry and Economy,ZhengzhouChina
| | - P Yu
- Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5A8, Canada
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23
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Ying Y, Tong M, Ning S, Ravi SK, Peh SB, Tan SC, Pennycook SJ, Zhao D. Ultrathin Two-Dimensional Membranes Assembled by Ionic Covalent Organic Nanosheets with Reduced Apertures for Gas Separation. J Am Chem Soc 2020; 142:4472-4480. [DOI: 10.1021/jacs.9b13825] [Citation(s) in RCA: 189] [Impact Index Per Article: 47.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yunpan Ying
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Minman Tong
- School of Chemistry and Materials Science, Jiangsu Normal University, No. 101 of Shanghai Road, Xuzhou 221116, China
| | - Shoucong Ning
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Sai Kishore Ravi
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Shing Bo Peh
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Swee Ching Tan
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Stephen John Pennycook
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
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24
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Zhang J, Peh SB, Wang J, Du Y, Xi S, Dong J, Karmakar A, Ying Y, Wang Y, Zhao D. Hybrid MOF-808-Tb nanospheres for highly sensitive and selective detection of acetone vapor and Fe3+ in aqueous solution. Chem Commun (Camb) 2019; 55:4727-4730. [DOI: 10.1039/c9cc00178f] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Hybrid MOF-808-Tb nanospheres were synthesized by a microwave-assisted approach and post-synthetic modification, exhibiting an outstanding luminescence sensing performance.
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Affiliation(s)
- Jian Zhang
- Department of Chemical and Biomolecular Engineering
- National University of
- Singapore
- Singapore
| | - Shing Bo Peh
- Department of Chemical and Biomolecular Engineering
- National University of
- Singapore
- Singapore
| | - Jian Wang
- Department of Chemical and Biomolecular Engineering
- National University of
- Singapore
- Singapore
| | - Yonghua Du
- Institute of Chemical and Engineering Sciences
- A*STAR
- Jurong Island
- Singapore
| | - Shibo Xi
- Institute of Chemical and Engineering Sciences
- A*STAR
- Jurong Island
- Singapore
| | - Jinqiao Dong
- Department of Chemical and Biomolecular Engineering
- National University of
- Singapore
- Singapore
| | - Avishek Karmakar
- Department of Chemical and Biomolecular Engineering
- National University of
- Singapore
- Singapore
| | - Yunpan Ying
- Department of Chemical and Biomolecular Engineering
- National University of
- Singapore
- Singapore
| | - Yuxiang Wang
- Department of Chemical and Biomolecular Engineering
- National University of
- Singapore
- Singapore
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering
- National University of
- Singapore
- Singapore
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25
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Cheng Y, Tavares SR, Doherty CM, Ying Y, Sarnello E, Maurin G, Hill MR, Li T, Zhao D. Enhanced Polymer Crystallinity in Mixed-Matrix Membranes Induced by Metal-Organic Framework Nanosheets for Efficient CO 2 Capture. ACS Appl Mater Interfaces 2018; 10:43095-43103. [PMID: 30427179 DOI: 10.1021/acsami.8b16386] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The design and fabrication of novel mixed-matrix membranes (MMMs) with simultaneously enhanced gas permeability and selectivity are highly sought for the industrial deployment of membrane technology for large-scale CO2 capture and storage. Conventional isotropic bulky particle fillers often exhibit limited interfacial compatibility that eventually leads to significant selectivity loss in MMMs. Here, we report the incorporation of chemically stable metal-organic framework (MOF) nanosheets into a highly permeable polymer matrix to prepare defect-free MMMs. MOF nanosheets are homogeneously dispersed within the polymer matrix, owing to their high aspect ratios that improve the polymer-filler integration. The strong hydrogen bonding and π-π interactions between the two components not only enhance the interfacial compatibility but also favor the efficient polymer chain packing along the surface of MOF nanosheets, leading to enhanced polymer crystallinity as well as size-sieving capability of the membranes. The as-prepared MMMs demonstrate high CO2-selective separation performance, good antipressure, and antiaging abilities, thus offering new opportunities in developing advanced membranes for industrial gas separation applications.
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Affiliation(s)
- Youdong Cheng
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , 117585 , Singapore
| | - Sérgio R Tavares
- Institut Charles Gerhardt Montpellier , Université de Montpellier , Place E. Bataillon , Montpellier Cedex 05 34095 , France
| | - Cara M Doherty
- CSIRO Manufacturing , Private Bag 10 , Clayton South , Victoria 3169 , Australia
| | - Yunpan Ying
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , 117585 , Singapore
| | - Erik Sarnello
- Department of Chemistry and Biochemistry , Northern Illinois University , DeKalb , Illinois 60115 , United States
| | - Guillaume Maurin
- Institut Charles Gerhardt Montpellier , Université de Montpellier , Place E. Bataillon , Montpellier Cedex 05 34095 , France
| | - Matthew R Hill
- CSIRO Manufacturing , Private Bag 10 , Clayton South , Victoria 3169 , Australia
- Department of Chemical Engineering , Monash University , Clayton , Victoria 3800 , Australia
| | - Tao Li
- Department of Chemistry and Biochemistry , Northern Illinois University , DeKalb , Illinois 60115 , United States
- X-Ray Science Division, Advanced Photon Source , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , 117585 , Singapore
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26
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Cheng Y, Ying Y, Japip S, Jiang SD, Chung TS, Zhang S, Zhao D. Advanced Porous Materials in Mixed Matrix Membranes. Adv Mater 2018; 30:e1802401. [PMID: 30048014 DOI: 10.1002/adma.201802401] [Citation(s) in RCA: 148] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 05/19/2018] [Indexed: 05/18/2023]
Abstract
Membrane technology has gained great interest in industrial separation processing over the past few decades owing to its high energy efficiency, small capital investment, environmentally benign characteristics, and the continuous operation process. Among various types of membranes, mixed matrix membranes (MMMs) combining the merits of the polymer matrix and inorganic/organic fillers have been extensively investigated. With the rapid development of chemistry and materials science, recent studies have shifted toward the design and application of advanced porous materials as promising fillers to boost the separation performance of MMMs. Here, first a comprehensive overview is provided on the choices of advanced porous materials recently adopted in MMMs, including metal-organic frameworks, porous organic frameworks, and porous molecular compounds. Novel trends in MMMs induced by these advanced porous fillers are discussed in detail, followed by a summary of applying these MMMs for gas and liquid separations. Finally, a concise conclusion and current challenges toward the industrial implementation of MMMs are outlined, hoping to provide guidance for the design of high-performance membranes to meet the urgent needs of clean energy and environmental sustainability.
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Affiliation(s)
- Youdong Cheng
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Yunpan Ying
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Susilo Japip
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Shu-Dong Jiang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Tai-Shung Chung
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Sui Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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27
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Salfer IJ, Morelli MC, Ying Y, Allen MS, Harvatine KJ. The effects of source and concentration of dietary fiber, starch, and fatty acids on the daily patterns of feed intake, rumination, and rumen pH in dairy cows. J Dairy Sci 2018; 101:10911-10921. [PMID: 30316599 DOI: 10.3168/jds.2018-15071] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 08/19/2018] [Indexed: 11/19/2022]
Abstract
The daily patterns of feed intake and rumination influence rumen fermentation, rumen pH, and timing of absorbed nutrients in the dairy cow, but the effects of diet composition on these patterns are not well characterized. Data from 3 previously published experiments were examined to determine the influence of dietary starch, fiber, and fatty acids (FA) on daily patterns of intake, rumination, and rumen pH. Dietary neutral detergent fiber (NDF) and starch were investigated in 2 experiments, each with duplicated 4 × 4 Latin square designs with a 2 × 2 factorial arrangement of treatments in cows fed cows 1×/d at 1200 and 1400 h, respectively. To investigate fiber content and digestibility in the first experiment, brown midrib or isogenic conventional corn silage were fed in low- and high-NDF diets (29 and 38%, respectively). To investigate starch source and concentration in the second experiment, ground high-moisture corn or dry ground corn were fed in low- and high-starch diets (21 and 32%, respectively). Effect of fat concentration and saturation was investigated in the third experiment using a replicated 4 × 4 Latin square design that fed cows 1×/d at 0900 h; treatments included a control diet with no added fat and 2.5% added saturated FA, unsaturated FA, or a mixture of the saturated and unsaturated FA. In the first 2 experiments, intake followed a similar daily pattern regardless of starch and NDF concentration or digestibility. Rumination displayed a treatment by time interaction for both NDF and starch concentration, with high-fiber, low-starch diets causing greater rumination overnight but not midday. High-starch diets decreased total daily rumen pH equally across the day, but did not change the daily pattern. Type of corn silage did not affect the daily patterns of rumination or rumen pH, but pH was reduced throughout the day in brown midrib diets. In the third experiment, no interactions between fatty acid supplement and time of day were observed for intake, rumination, or rumen pH. Within all experiments, rumination fit or tended to fit a 24-h rhythm regardless of diet, with the amplitude of the rumination being reduced in low-starch diets and diets containing saturated FA or a mixture of saturated and unsaturated FA. Overall, intake, rumination, and rumen pH follow a daily pattern that was minimally modified by dietary fiber and starch type and level or fat level and fatty acid profile.
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Affiliation(s)
- I J Salfer
- Department of Animal Science, Penn State University, University Park 16802
| | - M C Morelli
- Department of Animal Science, Penn State University, University Park 16802
| | - Y Ying
- Department of Animal Science, Penn State University, University Park 16802
| | - M S Allen
- Department of Animal Science, Michigan State University, East Lansing 48824-1225
| | - K J Harvatine
- Department of Animal Science, Penn State University, University Park 16802.
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28
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Castagnino DS, Seck M, Longuski RA, Ying Y, Allen MS, Gervais R, Chouinard PY, Girard CL. Particle size and endosperm type of dry corn grain altered duodenal flow of B vitamins in lactating dairy cows. J Dairy Sci 2018; 101:9841-9846. [PMID: 30197133 DOI: 10.3168/jds.2018-15131] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 07/14/2018] [Indexed: 11/19/2022]
Abstract
The objective of the experiment was to determine if factors such as endosperm type (floury vs. vitreous) and particle size (fine vs. medium) of dry corn grain, known to affect starch digestibility in the rumen, modify apparent ruminal synthesis and duodenal flow of B vitamins in lactating dairy cows. Eight lactating multiparous Holstein cows equipped with rumen and duodenal cannulas were assigned randomly to a treatment sequence according to a 2 × 2 factorial arrangement in duplicate 4 × 4 Latin square design experiment. Duration of each experimental period was 21 d. When expressed per unit of dry matter intake (DMI), floury treatments increased duodenal flow and apparent ruminal synthesis of niacin and folates but tended to increase apparent degradation of thiamin in the rumen. Duodenal flow of thiamin, riboflavin, niacin, folates, and vitamin B12, expressed per unit of DMI, decreased with an increase in particle size. Similarly, apparent degradation of thiamin and riboflavin was greater and apparent synthesis of niacin, folates, and vitamin B12 was reduced when cows were fed coarser dry corn grain particles. Neither endosperm type nor particle size had an effect on duodenal flow and apparent ruminal synthesis of vitamin B6. Apparent ruminal syntheses, expressed per unit of DMI, of all studied B vitamins but thiamin were negatively correlated with apparent ruminal digestibility of neutral detergent fiber. Duodenal flow of microbial N was positively correlated with apparent ruminal synthesis of riboflavin, niacin, vitamin B6, and folates. Under the conditions of the present experiment, except for thiamin, the effects of factors increasing starch digestibility of dry corn grain in the rumen on the amounts of B vitamins available for absorption by the dairy cow seem to be mediated through differences on ruminal digestibility of neutral detergent fiber and, to a lesser extent, on duodenal microbial N flow.
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Affiliation(s)
- D S Castagnino
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, 2000 College, Sherbrooke, QC, Canada, J1M 0C8; Département des Sciences Animales, Université Laval, 2425 rue de l'Agriculture, Québec, QC, Canada, G1V 0A6
| | - M Seck
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, 2000 College, Sherbrooke, QC, Canada, J1M 0C8; Département des Sciences Animales, Université Laval, 2425 rue de l'Agriculture, Québec, QC, Canada, G1V 0A6
| | - R A Longuski
- Department of Animal Science, Michigan State University, East Lansing 48824-1225
| | - Y Ying
- Department of Animal Science, Michigan State University, East Lansing 48824-1225
| | - M S Allen
- Department of Animal Science, Michigan State University, East Lansing 48824-1225
| | - R Gervais
- Département des Sciences Animales, Université Laval, 2425 rue de l'Agriculture, Québec, QC, Canada, G1V 0A6
| | - P Y Chouinard
- Département des Sciences Animales, Université Laval, 2425 rue de l'Agriculture, Québec, QC, Canada, G1V 0A6
| | - C L Girard
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, 2000 College, Sherbrooke, QC, Canada, J1M 0C8.
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29
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Shiomi M, Takeda H, Irino Y, Yamada S, Kuniyoshi N, Ying Y, Koike T, Izumi Y, Shinohara M, Bamba T, Ishida T. Development of markers for progression of coronary plaques using WHHLMI rabbits, an animal model of familial hypercholesterolemia. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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30
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Ying Y, Hong X, Xu X, Ma K, He J, Zhu F. A novel mutation +5904 C>T of RUNX1 site in the erythroid cell-specific regulatory element decreases the ABO antigen expression in Chinese population. Vox Sang 2018; 113:594-600. [PMID: 29978484 DOI: 10.1111/vox.12676] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 04/16/2018] [Accepted: 06/10/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND An erythroid cell-specific regulatory element (+5·8-kb) in the first intron of ABO is responsible for the antigen differential expression and the regulatory activity of the element was affected by the nucleotide mutation in the +5·8-kb region. Currently, many individuals with ABO subgroups were found in the Chinese population, but there was little information about the function of +5·8-kb region in these individuals. Here, we studied the mechanism of the mutation in the +5·8-kb region responsible for reducing of antigen expression in 30 ABO subtype Chinese individuals without mutation in the coding region or splicing site. MATERIALS AND METHODS The nucleotide sequence of the partial intron 1 covering the +5·8-kb site was amplified and directly sequenced. The haplotype with the novel mutation was obtained by the TOPO TA cloning. Both of the ABO promoter and the +5·8 kb regulatory element were subcloned into the basic luciferase reporter plasmid using the double endonuclease digestion. The promoter activity was examined by the dual-luciferase report vector with K562 cells. RESULTS A novel nucleotide substitution +5904 C>T located at RUNX1-binding site in the +5·8 kb site was identified from three individuals with B subtypes. +5890 T>G were found in three Bel and one Ael phenotypes. Cotransfection and luciferase assays demonstrated that the +5904 C>T could obviously reduce activity of the +5·8 kb site. CONCLUSION The study suggested that the transcriptional activity of the +5·8 kb site could be downregulated by the single point mutation of RUNX1 motif, leading to reduction in A or B antigen expression.
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Affiliation(s)
- Y Ying
- Blood Center of Zhejiang Province, Hangzhou, China
- Key Laboratory of Blood Safety Research of Zhejiang Province, Hangzhou, China
| | - X Hong
- Blood Center of Zhejiang Province, Hangzhou, China
- Key Laboratory of Blood Safety Research of Zhejiang Province, Hangzhou, China
| | - X Xu
- Blood Center of Zhejiang Province, Hangzhou, China
- Key Laboratory of Blood Safety Research of Zhejiang Province, Hangzhou, China
| | - K Ma
- Blood Center of Zhejiang Province, Hangzhou, China
- Key Laboratory of Blood Safety Research of Zhejiang Province, Hangzhou, China
| | - J He
- Blood Center of Zhejiang Province, Hangzhou, China
- Key Laboratory of Blood Safety Research of Zhejiang Province, Hangzhou, China
| | - F Zhu
- Blood Center of Zhejiang Province, Hangzhou, China
- Key Laboratory of Blood Safety Research of Zhejiang Province, Hangzhou, China
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Wei N, Jiang Y, Liu Z, Ying Y, Guo X, Wu Y, Wen Y, Yang H. 4-Phenylpyrimidine monolayer protection of a copper surface from salt corrosion. RSC Adv 2018; 8:7340-7349. [PMID: 35539134 PMCID: PMC9078396 DOI: 10.1039/c7ra12256j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 02/04/2018] [Indexed: 11/21/2022] Open
Abstract
4-Phenylpyrimidine (4-PPM) containing N heteroatoms can easily form compact and uniform layers on metallic surfaces. In this work, the protection of a copper surface from corrosion in 3 wt% NaCl by a 4-PPM layer was investigated by electrochemical impedance spectroscopy (EIS) and polarization methods. Under optimum conditions, the inhibition efficiency of a 4-PPM layer for copper corrosion reached 83.2%. Raman analysis in conjunction with calculations using density functional theory (DFT) based on the B3LYP/LANL2DZ basis set suggested that the 4-PPM molecule anchored on the copper surface via the N1 atom to construct a uniform layer. The efficiency of a 4-phenylpyrimidine monolayer optimally self-assembled on a copper surface against corrosion by a 3 wt% NaCl solution could reach 83.2%.![]()
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Affiliation(s)
- N Wei
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry, Shanghai Normal University Shanghai 200234 PR China +86-02164322511
| | - Y Jiang
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry, Shanghai Normal University Shanghai 200234 PR China +86-02164322511
| | - Z Liu
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry, Shanghai Normal University Shanghai 200234 PR China +86-02164322511
| | - Y Ying
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry, Shanghai Normal University Shanghai 200234 PR China +86-02164322511
| | - X Guo
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry, Shanghai Normal University Shanghai 200234 PR China +86-02164322511
| | - Y Wu
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry, Shanghai Normal University Shanghai 200234 PR China +86-02164322511
| | - Y Wen
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry, Shanghai Normal University Shanghai 200234 PR China +86-02164322511
| | - H Yang
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Department of Chemistry, Shanghai Normal University Shanghai 200234 PR China +86-02164322511
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Baldin M, Ying Y, Fan Y, Roth G, Casper DP, Harvatine KJ. Characterization of linoleic acid (C18:2) concentration in commercial corn silage and grain hybrids. J Dairy Sci 2017; 101:222-232. [PMID: 29103704 DOI: 10.3168/jds.2017-12972] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Accepted: 08/04/2017] [Indexed: 11/19/2022]
Abstract
Corn silage and high-moisture corn grain are commonly recognized as risk factors for biohydrogenation-induced milk fat depression and may be due to the high concentration of linoleic acid (C18:2) in corn. Corn silage and corn grain have a low concentration of fatty acids (FA), but due to their high inclusion rate in diets they contribute substantially to unsaturated FA intake. The first objective of this study was to characterize the contribution of individual plant parts to total FA in whole-plant chopped corn. The second objective was to characterize the variation in FA profile in commercial silage and grain hybrids and evaluate the relationship between FA profile and other nutrients. To determine the location of FA in the corn plant, 4 stalks from 4 different commercial hybrids were separated into stalk, husk and shank, leaves, cob, and kernels. On a dry matter basis, 80.5% of total FA were in the kernels, 11.8% in the leaves, 5.1% in the stalk, 1.7% in the cob, and 1.0% in the husk and shank. More than 96% of the oleic acid (C18:1) and 92.5% of the C18:2 was in the kernels, whereas 71.0% of the linolenic acid (C18:3) was in the leaves. Next, the FA composition of fresh whole-plant chopped corn from 124 silage hybrids and grain from 72 grain hybrids was determined over 2 yr from test plots in Pennsylvania. Last, to extend the characterization, FA composition of whole-plant corn silage from 45 hybrids grown in test plots in South Dakota were characterized. In the fresh whole-plant chopped corn from PA test plots, C18:2 as a percentage of total FA averaged from 48.7% in 2013 (percentiles: 10th = 45.2, 90th = 52.2) and 48.0% in 2014 (percentiles: 10th = 44.1, 90th = 49.4). Concentration of C18:2 in corn grain averaged 57.5% in the 2013 (percentiles: 10th = 53.4, 90th = 60.8) and 56.1% in 2014 (percentiles: 10th = 53.5, 90th = 59.4). In the corn silage from South Dakota, the concentration of C18:2 as percentage of total FA averaged 45.4% (percentiles: 10th = 39.4, 90th = 50.2) and C18:2 concentration as a percent of dry matter averaged 1.1% (percentiles: 10th = 0.76, 90th = 1.41). An increase in the concentration of C18:2 was associated with a decrease in C18:3 in fresh whole-plant chopped corn and with a decrease in C18:1 in corn grain. Total FA and C18:2 (as a percentage of dry matter) were positively correlated with starch and negatively correlated with neutral detergent fiber in both fresh whole-plant chopped corn and corn silage samples, whereas no correlation with these traits was observed for C18:2 as a percentage of total FA. In conclusion, FA concentration and profile of corn silage reflects to a great extent the FA composition of kernels and the proportion of grain in the silage. The variation in C18:2 across hybrids provides the opportunity to develop selection programs to decrease C18:2 in corn silage and grain. Selection based on C18:2 concentration as a percent of total FA is preferred as this trait did not correlate with other nutritional properties.
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Affiliation(s)
- M Baldin
- Department of Animal Science, Penn State University, University Park 16802
| | - Y Ying
- Department of Animal Science, Penn State University, University Park 16802
| | - Y Fan
- Department of Animal Science, Penn State University, University Park 16802; State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China 100193
| | - G Roth
- Department of Plant Sciences, Penn State University, University Park 16802
| | - D P Casper
- Furst-McNess Company, 120 E Clark St, Freeport, IL 61032
| | - K J Harvatine
- Department of Animal Science, Penn State University, University Park 16802.
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Rico DE, Ying Y, Harvatine KJ. Short communication: Effects of lysolecithin on milk fat synthesis and milk fatty acid profile of cows fed diets differing in fiber and unsaturated fatty acid concentration. J Dairy Sci 2017; 100:9042-9047. [PMID: 28918150 DOI: 10.3168/jds.2017-12976] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Accepted: 07/17/2017] [Indexed: 12/16/2023]
Abstract
Thirteen multiparous Holstein cows were used in a crossover design that tested the effect of lysolecithin in diets differing in neutral detergent fiber (NDF) and unsaturated fatty acid (FA) concentrations. Experimental periods were 20 d in length and included two 10-d phases. A standard fiber and lower fat diet was fed the first 10 d (30.5% NDF, no added oil, lower-risk phase) and a lower NDF and higher oil diet was fed during the second 10 d (29.0% NDF and 2% oil from whole soybeans and soybean oil, high-risk phase). Treatments were control and 10 g/d of lysolecithin (LYSO) extended in a ground corn carrier. Milk was sampled on d 0, 5, and 10 of each phase for determination of fat and protein concentration and FA profile. We found no effect of treatment or treatment by time interaction for dry matter intake, milk yield, or milk protein concentration. A treatment by time interaction was observed for milk fat concentration and yield. Milk fat concentration was higher in LYSO on d 5 of the lower-risk phase, but decreased progressively in both treatments during the high-risk phase. Milk fat yield was not different among treatments during the lower-risk phase, but was lower in LYSO on d 15 and tended to be lower on d 20 during the high-risk phase. Concentrations of milk de novo FA decreased and preformed FA increased during the high-risk phase, but we found no effect of treatment or treatment by time interactions. We noted an effect of time, but no treatment or treatment by time interactions for milk trans FA isomers. Briefly, trans-11 C18:1 and cis-9,trans-11 conjugated linoleic acid progressively decreased as trans-10 C18:1 and trans-10,cis-12 conjugated linoleic acid progressively increased during the high-risk phase. The LYSO increased milk fat concentration when feeding a higher fiber and lower unsaturated FA diet, but decreased milk fat yield when feeding a lower fiber and higher unsaturated FA diet, although biohydrogenation pathways and capacity did not appear to be modified. The effect of lysolecithin on rumen fermentation warrants further investigation, but is not recommended when feeding lower fiber and higher unsaturated fat diets.
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Affiliation(s)
- D E Rico
- Centre de Recherche en Sciences Animales à Deschambault (CRSAD), Deschambault, QC, Canada, G0A 1S0
| | - Y Ying
- Department of Animal Science, Penn State University, University Park 16802
| | - K J Harvatine
- Department of Animal Science, Penn State University, University Park 16802.
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Castagnino D, Ying Y, Allen M, Gervais R, Chouinard P, Girard C. Short communication: Apparent ruminal synthesis of B vitamins in lactating dairy cows fed Saccharomyces cerevisiae fermentation product. J Dairy Sci 2017; 100:8161-8164. [DOI: 10.3168/jds.2017-13146] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 06/30/2017] [Indexed: 11/19/2022]
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35
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Sarkar P, Gandhi A, Plosker S, Ying Y, Mayer J, Imudia A. The impact of supraphysiologic estradiol (E2) level during IVF on oocyte / embryo quality and pregnancy outcome. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.1039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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36
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Ying Y, Niu M, Clarke A, Harvatine K. Short communication: Effect of a citrus extract in lactating dairy cows. J Dairy Sci 2017; 100:5468-5471. [DOI: 10.3168/jds.2016-12233] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Accepted: 04/02/2017] [Indexed: 11/19/2022]
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37
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Urrutia N, Ying Y, Harvatine K. The effect of conjugated linoleic acid, acetate, and their interaction on adipose tissue lipid metabolism in nonlactating cows. J Dairy Sci 2017; 100:5058-5067. [DOI: 10.3168/jds.2016-12232] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Accepted: 03/01/2017] [Indexed: 12/23/2022]
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Hong X, Chen S, Ying Y, Liu Y, Xu X, He J, Zhu F. Simultaneous genotyping of human platelet alloantigen-1 to 28bw systems by multiplex polymerase chain reaction sequence-based typing. Vox Sang 2017; 112:360-366. [PMID: 28370062 DOI: 10.1111/vox.12507] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 01/11/2017] [Accepted: 01/23/2017] [Indexed: 02/02/2023]
Abstract
BACKGROUND AND OBJECTIVES Human platelet alloantigen (HPA) genotyping is important for the diagnosis and prevention the alloimmune platelet disorders. In this study, a simultaneous genotyping method for HPA-1 to -28bw systems was established using multiplex PCR-SBT and the frequencies of genotypes and alleles of HPA-1 to -28bw systems in the Zhejiang Han population were analysed. MATERIALS AND METHODS The specific primers were designed according to the nucleotide sequences of HPA-1 to 28bw systems which are located in ITGB3, GP1BA, ITGA2B, ITGA2, GP1BB and CD109, respectively. The multiplex PCR amplification systems were used, and then, the amplicons were purified and sequenced. A total of 335 healthy volunteer blood donors were detected. RESULTS The genotypes of ten reference samples from Platelet Immunology Workshop of ISBT were in concordance with the known genotypes. Among the 28 HPA systems, HPA a and b alleles were found in HPA-1 to 6w, HPA-15 and HPA-21w systems in the Chinese Han population, while only HPA aa genotype was detected in the other HPA systems. The frequencies of HPA-1a and HPA-1b were 0·993 and 0·007, with 0·943 and 0·057 for HPA-2a and HPA-2b, 0·527 and 0·473 for HPA-3a and HPA-3b, 0·997 and 0·003 for HPA-4a and HPA-4b, 0·991 and 0·009 for HPA-5a and HPA-5b, 0·980 and 0·020 for HPA-6wa and HPA-6wb, 0·508 and 0·492 for HPA-15a and HPA-15b and 0·994 and 0·006 for HPA-21wa and HPA-21wb. CONCLUSIONS One multiplex PCR-SBT method for HPAs was established and the data of the study could help to prevent and treat for alloimmune thrombocytopenia.
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Affiliation(s)
- X Hong
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - S Chen
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - Y Ying
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - Y Liu
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - X Xu
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - J He
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
| | - F Zhu
- Blood Center of Zhejiang Province, Hangzhou, Zhejiang, China.,Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang, China.,Zhejiang Provincial Key Laboratory of Blood Safety Research, Hangzhou, Zhejiang, China
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Zhang W, Ying Y, Ma J, Guo X, Huang H, Liu D, Zhong C. Mixed matrix membranes incorporated with polydopamine-coated metal-organic framework for dehydration of ethylene glycol by pervaporation. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.01.001] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ying Y, Liu D, Zhang W, Ma J, Huang H, Yang Q, Zhong C. High-Flux Graphene Oxide Membranes Intercalated by Metal-Organic Framework with Highly Selective Separation of Aqueous Organic Solution. ACS Appl Mater Interfaces 2017; 9:1710-1718. [PMID: 28001352 DOI: 10.1021/acsami.6b14371] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Graphene oxide (GO) membranes assembled by single-atom thick GO nanosheets have displayed huge potential application both in gas and liquid separation processes due to its facile and large-scale preparation resulting from various functional groups, such as hydroxyl, carboxyl, and epoxide groups. Taking advantage of these characters, GO membranes intercalated by superhydrophilic metal-organic frameworks (MOFs) as strengthening separation fillers were prepared on modified polyacrylonitrile (PAN) support by a novel pressure-assisted self-assembly (PASA) filtration technique instead of traditional vacuum filtration method for the first time. The synthesized MOF@GO membranes were characterized with several spectroscopic techniques including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS), as well as scanning electron microscopy (SEM). Compared with GO membrane, these MOF@GO membranes combine the unique properties of MOF and GO and thus have significant enhancements of pervaporation (PV) permeation flux and separation factor simultaneously for ethyl acetate/water mixtures (98/2, w/w) through the PV process, which are also superior to the reported other kinds of membranes. Especially, for MOF@GO-0.3 membrane (corresponding MOF loading: 23.08 wt %), the increments are 159% and 244%, respectively, at 303 K, and the permeate water content can reach as high as 99.5 wt % (corresponding separation factor, 9751) with a high permeation flux of 2423 g m-2 h-1. Moreover, the procedures of both the synthesis of MOF and membranes preparation are environmentally friendly that only water was used as solvent. Such a nanosized MOF-intercalating approach may be also extended to other laminated membranes, providing valuable insights in designing and developing of advanced membranes for effective separation of aqueous organic solution through nanostructure manipulation of the nanomaterials.
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Affiliation(s)
- Yunpan Ying
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
| | - Dahuan Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
| | - Weixin Zhang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
| | - Jing Ma
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
| | - Hongliang Huang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
| | - Qingyuan Yang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
| | - Chongli Zhong
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China
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Niu M, Ying Y, Bartell P, Harvatine K. The effects of feeding rations that differ in fiber and fermentable starch within a day on milk production and the daily rhythm of feed intake and plasma hormones and metabolites in dairy cows. J Dairy Sci 2017; 100:187-198. [DOI: 10.3168/jds.2016-11129] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 09/23/2016] [Indexed: 11/19/2022]
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Jun C, Song W, Diling C, Ying Y, Hao L, Zhansen H, Tao Q, Lili S, Dongqian S. 249 Preliminary Study on the Relationship Between Gut Microbiota and Type 2 Diabetic Erectile Dysfunction of Sprague -Dawley Rats. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.11.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sim F, Ying Y, Patel A, Cheng A, Bell R, Bui T, Dierks E. Onlay Adipofascial Flap for Pharyngotomy Defects Post Salvage Laryngectomy: A Case Series Review. J Oral Maxillofac Surg 2016. [DOI: 10.1016/j.joms.2016.06.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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McMillan HJ, Torres C, Michaud J, Ying Y, Boyd KU, Bourque PR. Diagnosis and outcome of childhood perineurioma. Childs Nerv Syst 2016; 32:1555-60. [PMID: 27086131 DOI: 10.1007/s00381-016-3089-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Accepted: 04/13/2016] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Intraneural perineurioma is a rare peripheral nerve tumor of childhood and early adulthood. Patients demonstrate progressive muscle weakness and atrophy largely without sensory complaints. CASE We report two children with perineurioma affecting the radial and femoral nerves. Electromyography (EMG), ultrasound, and 3-T MR imaging were important tools for localizing perineurioma and permitting its differentiation from other nerve lesions. The first patient underwent surgical excision of the perineurioma and a traditional nerve graft. At 10 months post-operative follow-up, she demonstrated no meaningful recovery of muscle strength compared to her pre-operative assessment. EMG did confirm axonal continuity indicating that reinnervation had occurred via the nerve graft. The second patient underwent a two-staged surgical procedure that included an end-to-side nerve transfer. At 18 months post-operative follow-up, she demonstrated mild improvement in muscle strength and EMG evidence of ongoing reinnervation. CONCLUSION The surgical management of perineurioma remains controversial, and reports of clinical recovery after nerve grafts and nerve transfers vary. Nerve transfers have been reported to provide superior results to traditional nerve grafting in adults with post-traumatic plexus injuries. The modest gain in strength of our patient who underwent a nerve transfer raises the question if this may also apply to patients with perineurioma. Additional studies will be required, which must also take into consideration that features of long-standing neuropathy (i.e., limb length discrepancy) have the potential to reduce the likelihood of reinnervation and clinical recovery.
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Affiliation(s)
- Hugh J McMillan
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, 401 Smyth Rd, Ottawa, ON, K1H 8L1, Canada.
| | - C Torres
- The Ottawa Hospital, Civic Campus, University of Ottawa, 1053 Carling Ave, Ottawa, ON, K1Y 4E9, Canada
| | - J Michaud
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, 401 Smyth Rd, Ottawa, ON, K1H 8L1, Canada
| | - Y Ying
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, 401 Smyth Rd, Ottawa, ON, K1H 8L1, Canada
| | - K U Boyd
- The Ottawa Hospital, Civic Campus, University of Ottawa, 1053 Carling Ave, Ottawa, ON, K1Y 4E9, Canada
| | - P R Bourque
- The Ottawa Hospital, Civic Campus, University of Ottawa, 1053 Carling Ave, Ottawa, ON, K1Y 4E9, Canada
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Ying Y, Zhang J, Huang SB, Liu FD, Liu JH, Zhang J, Hu XF, Zhang ZQ, Liu X, Huang XT. Fluconazole susceptibility of 3,056 clinical isolates of Candida species from 2005 to 2009 in a tertiary-care hospital. Indian J Med Microbiol 2016; 33:413-5. [PMID: 26068346 DOI: 10.4103/0255-0857.158569] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
In recent years, Candida infections have been increasing significantly. This study was to investigate the distribution and fluconazole susceptibility of such infections. Totally, 3,056 clinical isolates were analysed, C. albicans was the most prevalent species from respiratory and vaginal specimens. However, non-albicans species constituted the majority of isolates from blood, urine, intensive care unit (ICU), organ transplant and burned patients. Similarly, Candida spp. from different specimens and clinical services had different degrees of susceptibility to fluconazole. Isolates from vagina and burned patients had the highest resistance rate, while all of the isolates from ascites and dermatological services were susceptible to fluconazole.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - X T Huang
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, People's Republic of China
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Huang Z, Xu D, Zhang F, Ying Y, Song L. Pro-gastrin-releasing peptide and neuron-specific enolase: useful predictors of response to chemotherapy and survival in patients with small cell lung cancer. Clin Transl Oncol 2016; 18:1019-25. [PMID: 26886220 DOI: 10.1007/s12094-015-1479-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 12/29/2015] [Indexed: 11/29/2022]
Abstract
PURPOSE The aim of this study was (1) to evaluate and predict the value of ProGRP and NSE in therapy and survival; (2) as well as to investigate the correlation between the ProGRP mRNA expression in peripheral blood and serum ProGRP protein. METHODS The study included 122 patients with SCLC without prior therapy. The serum levels of ProGRP and NSE were detected by enzyme-linked immunosorbent assay and eletro-chemiluminescence immunoassay, respectively. The expression of ProGRP mRNA was detected by real-time reverse transcriptase-polymerase chain reaction. RESULTS Distribution of serum levels of ProGRP, NSE and ProGRP mRNA differed significantly according to tumor size, disease stage and distant metastasis (all P < 0.05), and no association was found between them and gender or age (both P > 0.05). After two courses of chemotherapy, patients of remission and stable groups showed a marked decrease in ProGRP and NSE concentrations (P < 0.05). The ProGRP concentration of patients in progression group was significantly higher than pretreatment level (P < 0.05), while NSE concentration was not. A linear nonparametric (Spearman) correlation test revealed that there was a significant correlation between ProGRP mRNA expression in peripheral blood and serum ProGRP protein level (P < 0.05). Univariate analysis found a statistically significant association of survival with disease stage, distant metastasis, ProGRP and NSE (P < 0.05). Gender, age and tumor size were not prognostic factors (P > 0.05). Multiple Cox regression model analysis found that only disease stage and NSE were significant predictors (P < 0.05). CONCLUSIONS This study has found that there is a potential role for ProGRP and NSE in both therapy monitoring and predicting survival in SCLC patients.
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Affiliation(s)
- Z Huang
- Department of Internal Medicine Oncology, Shandong Cancer Hospital and Institute, No. 440 Jiyan Road, Jinan, 250117, China.,Shandong Academy of Medical Sciences, School of Medicine and Life Sciences, University of Jinan, Jinan, China
| | - D Xu
- Department of Internal Medicine Oncology, Shandong Cancer Hospital and Institute, No. 440 Jiyan Road, Jinan, 250117, China.,Shandong Academy of Medical Sciences, School of Medicine and Life Sciences, University of Jinan, Jinan, China.,Department of Medical Oncology II, Affiliated Hospital of Shandong Academy of Medical Sciences, Jinan, China
| | - F Zhang
- Department of Internal Medicine Oncology, Shandong Cancer Hospital and Institute, No. 440 Jiyan Road, Jinan, 250117, China.,Shandong Academy of Medical Sciences, School of Medicine and Life Sciences, University of Jinan, Jinan, China
| | - Y Ying
- Department of Internal Medicine Oncology, Shandong Cancer Hospital and Institute, No. 440 Jiyan Road, Jinan, 250117, China.,Shandong Academy of Medical Sciences, School of Medicine and Life Sciences, University of Jinan, Jinan, China
| | - L Song
- Department of Internal Medicine Oncology, Shandong Cancer Hospital and Institute, No. 440 Jiyan Road, Jinan, 250117, China.
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Ying Y, Xie JJ, Wang HP, Mao P, Zhou W, Yang Z, Chen XY. Whole genome sequencing identified new somatic mutations for chronic myelomonocytic leukemia. Eur Rev Med Pharmacol Sci 2016; 20:278-284. [PMID: 26875896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE We aimed to gain new insight into the molecular alterations of Chronic Myelomonocytic Leukemia (CMML). PATIENTS AND METHODS We performed whole-genome sequencing (WGS) and subsequent Sanger sequencing validation analysis in three individuals with CMML. Genomic DNA samples from bone marrow and matching buccal mucosa samples were sequenced. RESULTS For all six samples, a total of 806.43 Gb data were generated, achieving a minimum mean depth of 30.76. A total of 22 somatic variants were found to be protein-altering, including 1 exonic frame shift indel, 18 missense SNVs, 2 stop gain SNVs, and 1 stop loss SNV. We focused on the five novel variants which have not been reported in known databases and successfully validated three missense SNVs in AKAP4, COL2A1, and MAML1, respectively. CONCLUSIONS WGS analyzes provided us a new insight into the molecular events governing the pathogenesis of CMML. The somatic variants we reported here may provide new targets for further therapeutic studies.
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Affiliation(s)
- Y Ying
- Department of Hematology, Guangzhou First People's Hospital, Guangzhou, China.
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Guest F, Everson R, Ying Y, Scrutton S, Hwang D. 601 Towards automatic prediction of tumour growth from CT images using machine learning algorithms a feasibility study. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30338-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Rottman L, Ying Y, Zhou K, Bartell P, Harvatine K. The effects of feeding rations that differ in neutral detergent fiber and starch concentration within a day on production, feeding behavior, total-tract digestibility, and plasma metabolites and hormones in dairy cows. J Dairy Sci 2015; 98:4673-84. [DOI: 10.3168/jds.2014-8859] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 12/30/2014] [Indexed: 11/19/2022]
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Ying Y, Rottman LW, Crawford C, Bartell PA, Harvatine KJ. The effects of feeding rations that differ in neutral detergent fiber and starch concentration within a day on rumen digesta nutrient concentration, pH, and fermentation products in dairy cows. J Dairy Sci 2015; 98:4685-97. [PMID: 25935245 DOI: 10.3168/jds.2014-8873] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 03/02/2015] [Indexed: 11/19/2022]
Abstract
There is a daily pattern of feed intake in the dairy cow, and feeding a single total mixed ration results in variation in the amount of fermentable substrate entering the rumen over the day. The object of this study was to determine if feeding multiple rations over the day that complement the pattern of feed intake would stabilize rumen pool sizes and fermentation. Nine ruminally cannulated cows were used in a 3×3 Latin square design with 23-d periods. Diets were a control diet [33.3% neutral detergent fiber (NDF)], a low-fiber diet (LF; 29.6% NDF), and a high-fiber diet (HF; 34.8% NDF). The LF and HF diets were balanced to provide the same nutrient composition as the control diet when cows were fed 3 parts of LF and 7 parts of HF. Cows on the control treatment (CON) were fed at 0900h, cows on the high/low treatment (H/L) were fed HF at 70% of daily offering at 0900h and LF at 30% of daily offering at 2200h, and cows on the low/high (L/H) treatment were fed LF at 30% of daily offering at 0900h and HF at 70% of daily offering at 1300h. All treatments were fed at 110% of daily intake. Preplanned contrasts compared CON with H/L and H/L with L/H. Feeding the LF diet in the evening resulted in a large increase in the amount of feed consumed immediately after feed delivery at that feeding. Rumen digesta starch concentration increased and NDF concentration decreased following feeding of the LF diet in both the L/H and H/L treatments. Starch pool size also increased following feeding of the LF diet in the evening and tended to increase after feeding the LF diet in the morning. Rumen ammonia concentration was increased following feeding of the HF diet in the morning and the LF diet in the evening in the H/L treatment. Additionally, cis-9 C18:1 and cis-9,cis-12 18:2 are higher in concentrate feeds and were increased after feeding the LF diet in both treatments. Trans fatty acid isomers of the normal and alternate biohydrogenation pathways followed a daily pattern, and the H/L treatment increased isomers of the alternate pathway during the overnight period following the evening feeding of the LF diet. Additionally, C17:0 decreased during the overnight period in the H/L treatment. Feeding multiple rations over the day changed feeding behavior, and the combined effect of diet composition and feeding pattern resulted in a change in rumen nutrient pool sizes and fermentation products. Feeding the low-fiber diet in the evening resulted in a large increase in feed intake after feed delivery and did not increase starch intake during the overnight period. The H/L treatment failed to stabilize rumen fermentation because of the shift in the feeding pattern. Feeding strategies that feed multiple diets over the day must integrate diet composition and feeding behavior to achieve the desired effect on rumen nutrient pools and fermentation.
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Affiliation(s)
- Y Ying
- Department of Animal Science, Penn State University, University Park 16802
| | - L W Rottman
- Department of Animal Science, Penn State University, University Park 16802
| | - C Crawford
- Department of Animal Science, Penn State University, University Park 16802
| | - P A Bartell
- Department of Animal Science, Penn State University, University Park 16802
| | - K J Harvatine
- Department of Animal Science, Penn State University, University Park 16802.
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