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  1. Article ; Online: Correction: Sub-nL thin-film differential scanning calorimetry chip for rapid thermal analysis of liquid samples.

    Ni, Sheng / Zhu, Hanliang / Neuzil, Pavel / Yobas, Levent

    Lab on a chip

    2024  Volume 24, Issue 2, Page(s) 383

    Abstract: Correction for 'Sub-nL thin-film differential scanning calorimetry chip for rapid thermal analysis of liquid samples' by Sheng ... ...

    Abstract Correction for 'Sub-nL thin-film differential scanning calorimetry chip for rapid thermal analysis of liquid samples' by Sheng Ni
    Language English
    Publishing date 2024-01-17
    Publishing country England
    Document type Published Erratum
    ZDB-ID 2056646-3
    ISSN 1473-0189 ; 1473-0197
    ISSN (online) 1473-0189
    ISSN 1473-0197
    DOI 10.1039/d3lc90109b
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Sub-nL thin-film differential scanning calorimetry chip for rapid thermal analysis of liquid samples.

    Ni, Sheng / Zhu, Hanliang / Neuzil, Pavel / Yobas, Levent

    Lab on a chip

    2023  Volume 23, Issue 7, Page(s) 1926–1934

    Abstract: Differential scanning calorimetry (DSC) is a popular thermal analysis technique. The miniaturization of DSC on chip as thin-film DSC (tfDSC) has been pioneered for the analysis of ultrathin polymer films at temperature scan rates and sensitivities far ... ...

    Abstract Differential scanning calorimetry (DSC) is a popular thermal analysis technique. The miniaturization of DSC on chip as thin-film DSC (tfDSC) has been pioneered for the analysis of ultrathin polymer films at temperature scan rates and sensitivities far superior to those attainable with DSC instruments. The adoption of tfDSC chips for the analysis of liquid samples is, however, confronted with various issues including sample evaporation due to the lack of sealed enclosures. Although the subsequent integration of enclosures has been demonstrated in various designs, rarely did those designs exceed the scan rates of DSC instruments mainly because of their bulky features and requirement for exterior heating. Here, we present a tfDSC chip featuring sub-nL thin-film enclosures integrated with resistance temperature detectors (RTDs) and heaters. The chip attains an unprecedented sensitivity of 11 V W
    Language English
    Publishing date 2023-03-28
    Publishing country England
    Document type Journal Article
    ZDB-ID 2056646-3
    ISSN 1473-0189 ; 1473-0197
    ISSN (online) 1473-0189
    ISSN 1473-0197
    DOI 10.1039/d2lc01094a
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Cu-catalyzed cascade difluoroalkylation/5-

    Su, Jingwen / Guo, Wenbin / Liu, Yi / Kong, Lichun / Zheng, Hanliang / Zhu, Gangguo

    Chemical communications (Cambridge, England)

    2023  Volume 59, Issue 13, Page(s) 1821–1824

    Abstract: A copper-catalyzed, redox-neutral cascade difluoroalkylation/5- ...

    Abstract A copper-catalyzed, redox-neutral cascade difluoroalkylation/5-
    Language English
    Publishing date 2023-02-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/d2cc06068j
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Improvement of sulfur and water resistance with Fe-modified S-MnCoCe/Ti/Si catalyst for low-temperature selective catalytic reduction of NO with NH

    Qiu, Lu / Li, Dengkui / Li, Hanliang / Ren, Zhaoyong / Zhu, Zhenye / Ouyang, Feng / Guo, Mingxin

    Chemosphere

    2022  Volume 302, Page(s) 134740

    Abstract: The low-temperature SCR of ... ...

    Abstract The low-temperature SCR of NO
    MeSH term(s) Ammonia ; Catalysis ; Oxidation-Reduction ; Silicon Dioxide ; Sulfur ; Temperature ; Titanium ; Water
    Chemical Substances Water (059QF0KO0R) ; Sulfur (70FD1KFU70) ; Silicon Dioxide (7631-86-9) ; Ammonia (7664-41-7) ; Titanium (D1JT611TNE)
    Language English
    Publishing date 2022-04-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2022.134740
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2540: Show issues Location:
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  5. Article ; Online: Recent advances in sterilization and disinfection technology: A review.

    Bharti, Bandna / Li, Hanliang / Ren, Zhaoyong / Zhu, Rongshu / Zhu, Zhenye

    Chemosphere

    2022  Volume 308, Issue Pt 3, Page(s) 136404

    Abstract: Sterilization and disinfection of pollutants and microorganisms have been extensively studied in order to address the problem of environmental contamination, which is a crucial issue for public health and economics. Various form of hazardous materials/ ... ...

    Abstract Sterilization and disinfection of pollutants and microorganisms have been extensively studied in order to address the problem of environmental contamination, which is a crucial issue for public health and economics. Various form of hazardous materials/pollutants including microorganisms and harmful gases are released into the environment that enter into the human body either through inhalation, adsorption or ingestion. The human death rate rises due to various respiratory ailments, strokes, lung cancer, and heart disorders related with these pollutants. Hence, it is essential to control the environmental pollution by applying economical and effective sterilization and disinfections techniques to save life. In general, numerous forms of traditional physical and chemical sterilization and disinfection treatments, such as dry and moist heat, radiation, filtration, ethylene oxide, ozone, hydrogen peroxide, etc. are known along with advanced techniques. In this review we summarized both advanced and conventional techniques of sterilization and disinfection along with their uses and mode of action. This review gives the knowledge about the advantages, disadvantages of both the methods comparatively. Despite, the effective solution given by the advanced sterilization and disinfection technology, joint technologies of sterilization and disinfection has proven to be more effective innovation to protect the indoor and outdoor environments.
    MeSH term(s) Disinfection/methods ; Environmental Pollutants ; Ethylene Oxide ; Hazardous Substances ; Humans ; Hydrogen Peroxide ; Ozone ; Sterilization/methods
    Chemical Substances Environmental Pollutants ; Hazardous Substances ; Ozone (66H7ZZK23N) ; Hydrogen Peroxide (BBX060AN9V) ; Ethylene Oxide (JJH7GNN18P)
    Language English
    Publishing date 2022-09-19
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2022.136404
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Improvement of the signal to noise ratio for fluorescent imaging in microfluidic chips.

    Liu, Xiaocheng / Zhu, Hanliang / Sabó, Ján / Lánský, Zdeněk / Neužil, Pavel

    Scientific reports

    2022  Volume 12, Issue 1, Page(s) 18911

    Abstract: Microfluidics systems can be fabricated in various ways using original silicon glass systems, with easy Si processing and surface modifications for subsequent applications such as cell seeding and their study. Fluorescent imaging of cells became a ... ...

    Abstract Microfluidics systems can be fabricated in various ways using original silicon glass systems, with easy Si processing and surface modifications for subsequent applications such as cell seeding and their study. Fluorescent imaging of cells became a standard technique for the investigation of cell behavior. Unfortunately, high sensitivity fluorescent imaging, e.g., using total internal reflection fluorescence (TIRF) microscopy, is problematic in these microfluidic systems because the uneven surfaces of the silicon channels' bottoms affect light penetration through the optical filters. In this work, we study the nature of the phenomenon, finding that the problem can be rectified by using a silicon-on-insulator (SOI) substrate, defining the channel depth by the thickness of the top Si layer, and halting the etching at the buried SiO
    MeSH term(s) Microfluidics ; Silicon/chemistry ; Signal-To-Noise Ratio ; Silicon Dioxide ; Nanotechnology/methods
    Chemical Substances Silicon (Z4152N8IUI) ; Silicon Dioxide (7631-86-9)
    Language English
    Publishing date 2022-11-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-022-23426-z
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  7. Article ; Online: Improvement of the signal to noise ratio for fluorescent imaging in microfluidic chips

    Xiaocheng Liu / Hanliang Zhu / Ján Sabó / Zdeněk Lánský / Pavel Neužil

    Scientific Reports, Vol 12, Iss 1, Pp 1-

    2022  Volume 9

    Abstract: Abstract Microfluidics systems can be fabricated in various ways using original silicon glass systems, with easy Si processing and surface modifications for subsequent applications such as cell seeding and their study. Fluorescent imaging of cells became ...

    Abstract Abstract Microfluidics systems can be fabricated in various ways using original silicon glass systems, with easy Si processing and surface modifications for subsequent applications such as cell seeding and their study. Fluorescent imaging of cells became a standard technique for the investigation of cell behavior. Unfortunately, high sensitivity fluorescent imaging, e.g., using total internal reflection fluorescence (TIRF) microscopy, is problematic in these microfluidic systems because the uneven surfaces of the silicon channels’ bottoms affect light penetration through the optical filters. In this work, we study the nature of the phenomenon, finding that the problem can be rectified by using a silicon-on-insulator (SOI) substrate, defining the channel depth by the thickness of the top Si layer, and halting the etching at the buried SiO2 layer. Then the fluorescent background signal drops by = 5 times, corresponding to the limit of detection drop from = 0.05 mM to = 50 nM of fluorescein. We demonstrate the importance of a flat surface using TIRF-based single-molecule detection, improving the signal to a noise ratio more than 18 times compared to a conventional Si wafer. Overall, using very high-quality SOI substrates pays off, as it improves the fluorescence image quality due to the increase in signal-to-noise ratio. Concerning the cost of microfluidic device fabrication—design, mask fabrication, wafer processing, and device testing—the initial SOI wafer cost is marginal, and using it improves the system performance.
    Keywords Medicine ; R ; Science ; Q
    Subject code 621
    Language English
    Publishing date 2022-11-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Effect of water-oil ratio on the photocatalytic performance of visible light-active BiVO

    Huang, Jingyuan / Ma, Yueyong / Chen, Qianqian / Zhu, Jinyan / Jiang, Hongyi / Li, Hanliang / Yi, Lian / Li, Haiyan / Hong, Mei

    Chemosphere

    2022  Volume 299, Page(s) 134454

    Abstract: Nowadays, nano-photocatalysts (NPs) have become the research focus in the field of photocatalysis due to their excellent photocatalytic activity, and microemulsion is an effective method to prepare high-efficiency nano-photocatalysts. Here, ... ...

    Abstract Nowadays, nano-photocatalysts (NPs) have become the research focus in the field of photocatalysis due to their excellent photocatalytic activity, and microemulsion is an effective method to prepare high-efficiency nano-photocatalysts. Here, BiVO
    Language English
    Publishing date 2022-03-29
    Publishing country England
    Document type Journal Article
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2022.134454
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  9. Article ; Online: Thermally Driven Diselenide Metathesis: Polarization Process vs Radical Process.

    Chen, Sisi / Lu, Weihong / Zhang, Jiandong / He, Hanliang / Cang, Yujie / Pan, Xiangqiang / Zhu, Jian

    ACS macro letters

    2022  Volume 11, Issue 2, Page(s) 264–269

    Abstract: Diselenide, as a dynamic covalent bond, has been widely applied in functional materials due to its response to light, heat, sonication, pH, and other stimuli. Herein, a polarization-induced metathesis mechanism for diselenides under heating conditions in ...

    Abstract Diselenide, as a dynamic covalent bond, has been widely applied in functional materials due to its response to light, heat, sonication, pH, and other stimuli. Herein, a polarization-induced metathesis mechanism for diselenides under heating conditions in the dark is proposed. First, a radical trap experiment is used to prove that the exchange reaction of diselenides in the dark does not involve any radicals. Second, the dynamic exchange reaction of diselenides is found to be affected not only by the polarity of the solvent but also by the introduction of polar groups into the molecular skeleton. Furthermore, DFT calculations also support the notion that polarity has a large effect on the heterolytic rather than homolytic bond dissociation energies. The experimental results for allyl selenide small molecules, polymers, and polymer materials catalyzed by diselenide all support the polarization-induced metathesis mechanism. In short, we successfully enhanced the understanding of the mechanism for diselenide metathesis.
    Language English
    Publishing date 2022-01-27
    Publishing country United States
    Document type Journal Article
    ISSN 2161-1653
    ISSN (online) 2161-1653
    DOI 10.1021/acsmacrolett.1c00795
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Multiplexed digital polymerase chain reaction as a powerful diagnostic tool.

    Gaňová, Martina / Zhang, Haoqing / Zhu, Hanliang / Korabečná, Marie / Neužil, Pavel

    Biosensors & bioelectronics

    2021  Volume 181, Page(s) 113155

    Abstract: The digital polymerase chain reaction (dPCR) multiplexing method can simultaneously detect and quantify closely related deoxyribonucleic acid sequences in complex mixtures. The dPCR concept is continuously improved by the development of microfluidics and ...

    Abstract The digital polymerase chain reaction (dPCR) multiplexing method can simultaneously detect and quantify closely related deoxyribonucleic acid sequences in complex mixtures. The dPCR concept is continuously improved by the development of microfluidics and micro- and nanofabrication, and different complex techniques are introduced. In this review, we introduce dPCR techniques based on sample compartmentalization, droplet- and chip-based systems, and their combinations. We then discuss dPCR multiplexing methods in both laboratory research settings and advanced or routine clinical applications. We focus on their strengths and weaknesses with regard to the character of biological samples and to the required precision of such analysis, as well as showing recently published work based on those methods. Finally, we envisage possible future achievements in this field.
    MeSH term(s) Biosensing Techniques ; Polymerase Chain Reaction
    Language English
    Publishing date 2021-03-09
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1011023-9
    ISSN 1873-4235 ; 0956-5663
    ISSN (online) 1873-4235
    ISSN 0956-5663
    DOI 10.1016/j.bios.2021.113155
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