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  1. Article ; Online: A Zeolitic Octahedral Metal Oxide with Ultrahigh Porosity for High-temperature and High-humidity Alkyne/Alkene Separation.

    Ma, Baokai / Hu, Panpan / Zou, Liangcheng / Zhu, Qianqian / Zhang, Lifeng / Ishikawa, Satoshi / Ueda, Wataru / Li, Yanshuo / Zhang, Zhenxin

    Angewandte Chemie (International ed. in English)

    2024  , Page(s) e202406374

    Abstract: Zeolitic octahedral metal oxide is a newly synthesized all-inorganic zeolitic material and has been used for adsorption, separation, and catalysis. Herein, a new zeolitic octahedral metal oxide was synthesized and characterized. The porous framework was ... ...

    Abstract Zeolitic octahedral metal oxide is a newly synthesized all-inorganic zeolitic material and has been used for adsorption, separation, and catalysis. Herein, a new zeolitic octahedral metal oxide was synthesized and characterized. The porous framework was established through the assembly of [P
    Language English
    Publishing date 2024-04-16
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202406374
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  2. Article ; Online: A Zeolitic Octahedral Metal Oxide with Ultra-Microporosity for Inverse CO

    Ma, Baokai / Li, Denan / Zhu, Qianqian / Li, Yanshuo / Ueda, Wataru / Zhang, Zhenxin

    Angewandte Chemie (International ed. in English)

    2022  Volume 61, Issue 37, Page(s) e202209121

    Abstract: Separation of ... ...

    Abstract Separation of CO
    Language English
    Publishing date 2022-08-01
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202209121
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  3. Article ; Online: Direct, selective and ultrasensitive electrochemical biosensing of methyl parathion in vegetables using Burkholderia cepacia lipase@MOF nanofibers-based biosensor.

    Wang, Zhipan / Ma, Baokai / Shen, Cai / Cheong, Ling-Zhi

    Talanta

    2019  Volume 197, Page(s) 356–362

    Abstract: Methyl parathion is one of the most widely used pesticides in agricultural practices. It caused accumulation of acetylcholine and over-stimulation of receptors in synapses which eventually led to damage of the nervous system. Present study developed a ... ...

    Abstract Methyl parathion is one of the most widely used pesticides in agricultural practices. It caused accumulation of acetylcholine and over-stimulation of receptors in synapses which eventually led to damage of the nervous system. Present study developed a direct, sensitive, rapid and reliable method for methyl parathion residues detection in vegetable samples. MOF nanofibers which demonstrated stable framework structure, good thermal/chemical stability, good electrochemical behavior, high porosity, surface area and pore volume was synthesized and used for fabrication of Burkholderia cepacia lipase (BCL)@MOF nanofibers biosensors. BCL@MOF nanofibers/chitosan/GCE biosensor demonstrated high sensitivity for methyl detection with a wide linear range (0.1-38 µM) and low limit of detection 0.067 µM. During the 3 weeks storage stability test at 4 °C, the fabricated biosensor demonstrated good reusability and excellent stability for methyl parathion detection with retainment of more than 80% of its initial response. When applied for detection of methyl parathion residues in vegetable samples, the BCL@MOF nanofibers/chitosan/GCE biosensors demonstrated good recovery rates.
    MeSH term(s) Biosensing Techniques ; Burkholderia cepacia/enzymology ; Electrochemical Techniques ; Insecticides/analysis ; Lipase/chemistry ; Lipase/metabolism ; Metal-Organic Frameworks/chemistry ; Methyl Parathion/analysis ; Nanofibers/chemistry ; Vegetables/chemistry
    Chemical Substances Insecticides ; Metal-Organic Frameworks ; Methyl Parathion (41BCL2O91D) ; Lipase (EC 3.1.1.3)
    Language English
    Publishing date 2019-01-14
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1500969-5
    ISSN 1873-3573 ; 0039-9140
    ISSN (online) 1873-3573
    ISSN 0039-9140
    DOI 10.1016/j.talanta.2019.01.052
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  4. Article: Direct, selective and ultrasensitive electrochemical biosensing of methyl parathion in vegetables using Burkholderia cepacia lipase@MOF nanofibers-based biosensor

    Wang, Zhipan / Ma, Baokai / Shen, Cai / Cheong, Ling-Zhi

    Talanta. 2019 May 15, v. 197

    2019  

    Abstract: Methyl parathion is one of the most widely used pesticides in agricultural practices. It caused accumulation of acetylcholine and over-stimulation of receptors in synapses which eventually led to damage of the nervous system. Present study developed a ... ...

    Abstract Methyl parathion is one of the most widely used pesticides in agricultural practices. It caused accumulation of acetylcholine and over-stimulation of receptors in synapses which eventually led to damage of the nervous system. Present study developed a direct, sensitive, rapid and reliable method for methyl parathion residues detection in vegetable samples. MOF nanofibers which demonstrated stable framework structure, good thermal/chemical stability, good electrochemical behavior, high porosity, surface area and pore volume was synthesized and used for fabrication of Burkholderia cepacia lipase (BCL)@MOF nanofibers biosensors. BCL@MOF nanofibers/chitosan/GCE biosensor demonstrated high sensitivity for methyl detection with a wide linear range (0.1–38 μM) and low limit of detection 0.067 μM. During the 3 weeks storage stability test at 4 °C, the fabricated biosensor demonstrated good reusability and excellent stability for methyl parathion detection with retainment of more than 80% of its initial response. When applied for detection of methyl parathion residues in vegetable samples, the BCL@MOF nanofibers/chitosan/GCE biosensors demonstrated good recovery rates.
    Keywords Burkholderia cepacia ; acetylcholine ; biosensors ; chitosan ; detection limit ; electrochemistry ; nanofibers ; parathion-methyl ; porosity ; receptors ; storage quality ; surface area ; synapse ; triacylglycerol lipase ; vegetables
    Language English
    Dates of publication 2019-0515
    Size p. 356-362.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 1500969-5
    ISSN 1873-3573 ; 0039-9140
    ISSN (online) 1873-3573
    ISSN 0039-9140
    DOI 10.1016/j.talanta.2019.01.052
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  5. Article: Electrochemical Biosensing of Chilled Seafood Freshness by Xanthine Oxidase Immobilized on Copper-Based Metal–Organic Framework Nanofiber Film

    Wang, Zhipan / Ma, Baokai / Shen, Cai / Lai, Oi-Ming / Tan, Chin-Ping / Cheong, Ling-Zhi

    Food analytical methods. 2019 Aug., v. 12, no. 8

    2019  

    Abstract: ATP degradation is an important biochemical change during decomposition of seafood. Hypoxanthine and xanthine which are formed during ATP degradation process can be used for evaluation of chilled seafood freshness. Present study successfully immobilized ... ...

    Abstract ATP degradation is an important biochemical change during decomposition of seafood. Hypoxanthine and xanthine which are formed during ATP degradation process can be used for evaluation of chilled seafood freshness. Present study successfully immobilized xanthine oxidase (XOD) onto a type of biocompatible copper-based metal organic framework nanofibers (Cu-MOF) film and used it for fabrication of a hypoxanthine and xanthine electrochemical biosensor. Cu-MOF can efficiently entrap XOD, provide a suitable atmosphere for XOD biocatalysis, and ensure good electron transfer between enzyme and electrode surface. The as-prepared XOD-electrochemical biosensor demonstrated high sensitivity for both hypoxanthine and xanthine with a wide linear range (0.01 to 10 μM) and low limit of detection. During the 3-week storage stability test at 4 °C, the fabricated biosensor demonstrated good reusability (up to 100 times) and excellent storage stability for hypoxanthine and xanthine. When applied for detection of hypoxanthine and xanthine in chilled squid and large yellow croaker, the XOD-electrochemical biosensors demonstrated good recovery rates.
    Keywords Larimichthys crocea ; biocatalysis ; biosensors ; coordination polymers ; copper ; detection limit ; electrochemistry ; electrodes ; electron transfer ; freshness ; hypoxanthine ; nanofibers ; seafoods ; squid ; storage quality ; xanthine ; xanthine oxidase
    Language English
    Dates of publication 2019-08
    Size p. 1715-1724.
    Publishing place Springer US
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2429656-9
    ISSN 1936-976X ; 1936-9751
    ISSN (online) 1936-976X
    ISSN 1936-9751
    DOI 10.1007/s12161-019-01513-8
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    In stock of ZB MED Bonn / Germany

    Z 7787: Show issues

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  6. Article ; Online: Fingerprinting of Phospholipid Molecular Species from Human Milk and Infant Formula Using HILIC-ESI-IT-TOF-MS and Discriminatory Analysis by Principal Component Analysis.

    Jiang, Chenyu / Ma, Baokai / Song, Shuang / Lai, Oi-Ming / Cheong, Ling-Zhi

    Journal of agricultural and food chemistry

    2018  Volume 66, Issue 27, Page(s) 7131–7138

    Abstract: Phospholipid composition in the milk fat globule membrane (MFGM) fluctuates during the entire lactation period in order to suit the growing needs of newborn infants. The present study elucidated and relatively quantified phospholipid molecular species ... ...

    Abstract Phospholipid composition in the milk fat globule membrane (MFGM) fluctuates during the entire lactation period in order to suit the growing needs of newborn infants. The present study elucidated and relatively quantified phospholipid molecular species extracted from human milk (HM), mature human milk (MHM), and infant formulas (with or without MFGM supplementation) using hydrophilic liquid chromatography-electrospray ionization-ion trap-time of flight-mass spectrometry (HILIC-ESI-IT-TOF-MS) system. Principal component analysis was used to clarify the differences between phospholipid composition in HM, MHM, and infant formulas. HM and MHM contained high concentrations of sphingomyeline (HM: 107.61 μg/mL, MHM: 227.18 μg/mL), phosphatidylcholine (HM: 59.96 μg/mL, MHM: 50.77 μg/mL), and phosphatidylethanolamine (PE) (HM: 25.24 μg/mL, MHM: 31.76 μg/mL). Significant concentrations (<300 ng/mL) of arachidonic, eicosapentanoic, and docosahexanoic acids were found to esterify to PE in HM and MHM. Meanwhile, all infant formulas were found to contain high concentrations of phosphatidic acids indicating the possibility of degradation of the fortified MFGM either during processing or storage of the infant formulas.
    MeSH term(s) Adult ; Chromatography, Liquid ; Female ; Glycolipids/chemistry ; Glycoproteins/chemistry ; Humans ; Infant ; Infant Formula/analysis ; Infant Formula/chemistry ; Milk, Human/chemistry ; Phosphatidic Acids/analysis ; Phospholipids/analysis ; Phospholipids/chemistry ; Principal Component Analysis ; Spectrometry, Mass, Electrospray Ionization/methods
    Chemical Substances Glycolipids ; Glycoproteins ; Phosphatidic Acids ; Phospholipids ; milk fat globule
    Language English
    Publishing date 2018-06-26
    Publishing country United States
    Document type Journal Article
    ZDB-ID 241619-0
    ISSN 1520-5118 ; 0021-8561
    ISSN (online) 1520-5118
    ISSN 0021-8561
    DOI 10.1021/acs.jafc.8b01393
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1172: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  7. Article ; Online: Single-Atom-Thick Active Layers Realized in Nanolaminated Ti

    Li, Youbing / Li, Mian / Lu, Jun / Ma, Baokai / Wang, Zhipan / Cheong, Ling-Zhi / Luo, Kan / Zha, Xianhu / Chen, Ke / Persson, Per O Å / Hultman, Lars / Eklund, Per / Shen, Cai / Wang, Qigang / Xue, Jianming / Du, Shiyu / Huang, Zhengren / Chai, Zhifang / Huang, Qing

    ACS nano

    2019  Volume 13, Issue 8, Page(s) 9198–9205

    Abstract: ... A ... ...

    Abstract A Ti
    Language English
    Publishing date 2019-07-24
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1936-086X
    ISSN (online) 1936-086X
    DOI 10.1021/acsnano.9b03530
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