《Comparing novel small-angle X-ray scattering approaches for absolute size and number concentration measurements of spherical SiO2 particles to established methods》

  • 来源专题:现代化工
  • 编译者: 武春亮
  • 发布时间:2024-06-26




















  • Skip to content

    Accessibility Links

    Skip to content
    Skip to search IOPscience
    Skip to Journals list
    Accessibility help











    IOP Science home





    Accessibility Help







    Search


    Journals


    Journals list
    Browse more than 100 science journal titles


    Subject collections
    Read the very best research published in IOP journals


    Publishing partners
    Partner organisations and publications


    Open access
    IOP Publishing open access policy guide


    IOP Conference Series
    Read open access proceedings from science conferences worldwide




    Books


    Publishing Support



    Login

    IOPscience login / Sign Up








    Close

    Click here to close this panel.



    Search all IOPscience content








    Article Lookup

    Select journal (required)

    Select journal (required)2D Mater. (2014 - present)Acta Phys. Sin. (Overseas Edn) (1992 - 1999)Adv. Nat. Sci: Nanosci. Nanotechnol. (2010 - present)Appl. Phys. Express (2008 - present)Biofabrication (2009 - present)Bioinspir. Biomim. (2006 - present)Biomed. Mater. (2006 - present)Biomed. Phys. Eng. Express (2015 - present)Br. J. Appl. Phys. (1950 - 1967)Chin. J. Astron. Astrophys. (2001 - 2008)Chin. J. Chem. Phys. (1987 - 2007)Chin. J. Chem. Phys. (2008 - 2012)Chinese Phys. (2000 - 2007)Chinese Phys. B (2008 - present)Chinese Phys. C (2008 - present)Chinese Phys. Lett. (1984 - present)Class. Quantum Grav. (1984 - present)Clin. Phys. Physiol. Meas. (1980 - 1992)Combustion Theory and Modelling (1997 - 2004)Commun. Theor. Phys. (1982 - present)Comput. Sci. Discov. (2008 - 2015)Converg. Sci. Phys. Oncol. (2015 - 2018)Distrib. Syst. Engng. (1993 - 1999)ECS Adv. (2022 - present)ECS Electrochem. Lett. (2012 - 2015)ECS J. Solid State Sci. Technol. (2012 - present)ECS Sens. Plus (2022 - present)ECS Solid State Lett. (2012 - 2015)ECS Trans. (2005 - present)EPL (1986 - present)Electrochem. Soc. Interface (1992 - present)Electrochem. Solid-State Lett. (1998 - 2012)Electron. Struct. (2019 - present)Eng. Res. Express (2019 - present)Environ. Res. Commun. (2018 - present)Environ. Res. Lett. (2006 - present)Environ. Res.: Climate (2022 - present)Environ. Res.: Ecology (2022 - present)Environ. Res.: Energy (2024 - present)Environ. Res.: Food Syst. (2024 - present)Environ. Res.: Health (2022 - present)Environ. Res.: Infrastruct. Sustain. (2021 - present)Eur. J. Phys. (1980 - present)Flex. Print. Electron. (2015 - present)Fluid Dyn. Res. (1986 - present)Funct. Compos. Struct. (2018 - present)IOP Conf. Ser.: Earth Environ. Sci. (2008 - present)IOP Conf. Ser.: Mater. Sci. Eng. (2009 - present)IOPSciNotes (2020 - 2022)Int. J. Extrem. Manuf. (2019 - present)Inverse Problems (1985 - present)Izv. Math. (1993 - present)J. Breath Res. (2007 - present)J. Cosmol. Astropart. Phys. (2003 - present)J. Electrochem. Soc. (1902 - present)J. Geophys. Eng. (2004 - 2018)J. High Energy Phys. (1997 - 2009)J. Inst. (2006 - present)J. Micromech. Microeng. (1991 - present)J. Neural Eng. (2004 - present)J. Nucl. Energy, Part C Plasma Phys. (1959 - 1966)J. Opt. (1977 - 1998)J. Opt. (2010 - present)J. Opt. A: Pure Appl. Opt. (1999 - 2009)J. Opt. B: Quantum Semiclass. Opt. (1999 - 2005)J. Phys. A: Gen. Phys. (1968 - 1972)J. Phys. A: Math. Gen. (1975 - 2006)J. Phys. A: Math. Nucl. Gen. (1973 - 1974)J. Phys. A: Math. Theor. (2007 - present)J. Phys. B: At. Mol. Opt. Phys. (1988 - present)J. Phys. B: Atom. Mol. Phys. (1968 - 1987)J. Phys. C: Solid State Phys. (1968 - 1988)J. Phys. Commun. (2017 - present)J. Phys. Complex. (2019 - present)J. Phys. D: Appl. Phys. (1968 - present)J. Phys. E: Sci. Instrum. (1968 - 1989)J. Phys. Energy (2018 - present)J. Phys. F: Met. Phys. (1971 - 1988)J. Phys. G: Nucl. Part. Phys. (1989 - present)J. Phys. G: Nucl. Phys. (1975 - 1988)J. Phys. Mater. (2018 - present)J. Phys. Photonics (2018 - present)J. Phys.: Condens. Matter (1989 - present)J. Phys.: Conf. Ser. (2004 - present)J. Radiol. Prot. (1988 - present)J. Sci. Instrum. (1923 - 1967)J. Semicond. (2009 - present)J. Soc. Radiol. Prot. (1981 - 1987)J. Stat. Mech. (2004 - present)JoT (2000 - 2004)Jpn. J. Appl. Phys. (1962 - present)Laser Phys. (2013 - present)Laser Phys. Lett. (2004 - present)Mach. Learn.: Sci. Technol. (2019 - present)Mater. Futures (2022 - present)Mater. Quantum. Technol. (2020 - present)Mater. Res. Express (2014 - present)Math. USSR Izv. (1967 - 1992)Math. USSR Sb. (1967 - 1993)Meas. Sci. Technol. (1990 - present)Meet. Abstr. (2002 - present)Methods Appl. Fluoresc. (2013 - present)Metrologia (1965 - present)Modelling Simul. Mater. Sci. Eng. (1992 - present)Multifunct. Mater. (2018 - 2022)Nano Ex. (2020 - present)Nano Futures (2017 - present)Nanotechnology (1990 - present)Network (1990 - 2004)Neuromorph. Comput. Eng. (2021 - present)New J. Phys. (1998 - present)Nonlinearity (1988 - present)Nouvelle Revue d'Optique (1973 - 1976)Nouvelle Revue d'Optique Appliquée (1970 - 1972)Nucl. Fusion (1960 - present)PASP (1889 - present)Phys. Biol. (2004 - present)Phys. Bull. (1950 - 1988)Phys. Educ. (1966 - present)Phys. Med. Biol. (1956 - present)Phys. Scr. (1970 - present)Phys. World (1988 - present)Phys.-Usp. (1993 - present)Physics in Technology (1973 - 1988)Physiol. Meas. (1993 - present)Plasma Phys. Control. Fusion (1984 - present)Plasma Physics (1967 - 1983)Plasma Res. Express (2018 - 2022)Plasma Sci. Technol. (1999 - present)Plasma Sources Sci. Technol. (1992 - present)Proc. Phys. Soc. (1926 - 1948)Proc. Phys. Soc. (1958 - 1967)Proc. Phys. Soc. A (1949 - 1957)Proc. Phys. Soc. B (1949 - 1957)Proc. Phys. Soc. London (1874 - 1925)Proc. Vol. (1967 - 2005)Prog. Biomed. Eng. (2018 - present)Prog. Energy (2018 - present)Public Understand. Sci. (1992 - 2002)Pure Appl. Opt. (1992 - 1998)Quantitative Finance (2001 - 2004)Quantum Electron. (1993 - present)Quantum Opt. (1989 - 1994)Quantum Sci. Technol. (2015 - present)Quantum Semiclass. Opt. (1995 - 1998)Rep. Prog. Phys. (1934 - present)Res. Astron. Astrophys. (2009 - present)Research Notes of the AAS (2017 - present)RevPhysTech (1970 - 1972)Russ. Chem. Rev. (1960 - present)Russ. Math. Surv. (1960 - present)Sb. Math. (1993 - present)Sci. Technol. Adv. Mater. (2000 - 2015)Semicond. Sci. Technol. (1986 - present)Smart Mater. Struct. (1992 - present)Sov. J. Quantum Electron. (1971 - 1992)Sov. Phys. Usp. (1958 - 1992)Supercond. Sci. Technol. (1988 - present)Surf. Topogr.: Metrol. Prop. (2013 - present)Sustain. Sci. Technol. (2024 - present)The Astronomical Journal (1849 - present)The Astrophysical Journal (1996 - present)The Astrophysical Journal Letters (2010 - present)The Astrophysical Journal Supplement Series (1996 - present)The Planetary Science Journal (2020 - present)Trans. Amer: Electrochem. Soc. (1930 - 1930)Trans. Electrochem. Soc. (1931 - 1948)Trans. Opt. Soc. (1899 - 1932)Transl. Mater. Res. (2014 - 2018)Waves Random Media (1991 - 2004)

    Volume number:

    Issue number (if known):

    Article or page number:





















    Nanotechnology


















    Purpose-led Publishing is a coalition of three not-for-profit publishers in the field of physical sciences: AIP Publishing, the American Physical Society and IOP Publishing.
    Together, as publishers that will always put purpose above profit, we have defined a set of industry standards that underpin high-quality, ethical scholarly communications.
    We are proudly declaring that science is our only shareholder.















    ACCEPTED MANUSCRIPT


    ?




    The following article is
    Open access



    Comparing novel small-angle X-ray scattering approaches for absolute size and number concentration measurements of spherical SiO2 particles to established methods


    Robin Schürmann1, Anikó Gaál2, Aneta Sikora3, David Ojeda3, Dorota Bartczak3, Heidi Goenaga-Infante3, Virpi Korpelainen4, Bruno SAUVET5, Jerome Deumer1, Zoltán Varga2 and Christian Gollwitzer1




    Accepted Manuscript online 11 June 2024
    ?



    © 2024 The Author(s). Published by IOP Publishing Ltd



    What is an Accepted Manuscript?




    DOI 10.1088/1361-6528/ad568b

    Download Accepted Manuscript PDF















    Figures

    Skip to each figure in the article




    Tables

    Skip to each table in the article




    References





    Citations





    Article data

    Skip to each data item in the article

    What
    is article data?



    Open science






















    Article metrics

    32 Total downloads
















    Submit

    Submit to this Journal





    Share this article































    Article and author information




    Author e-mailsrobin.schuermann@ptb.de
    Author affiliations1
    Physikalisch-Technische Bundesanstalt, Abbestr. 2-12, Berlin, 10587, GERMANY
    2
    Institute of Materials and Environmental Chemistry, Magyar Tudósok K?rútja 2, Budapest, H-1117, HUNGARY
    3
    National Measurement Laboratory, LGC Limited, Queens Road, Teddington, TW11 0LY, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
    4
    National Metrology Institute VTT MIKES, Tekniikantie 1, Espoo, FI-02150, FINLAND
    5
    National Metrology Institute VTT MIKES, Tekniikantie 1, Espoo, FI-02150 , FINLAND

    ORCID iDsRobin Schürmann https://orcid.org/0000-0003-4957-5238Bruno SAUVET https://orcid.org/0000-0002-0997-4579


    Dates

    Received 19 January 2024
    Revised 15 May 2024
    Accepted 11 June 2024
    Accepted Manuscript online 11 June 2024







    Peer review information

    Method: Single-anonymous


    Revisions: 1
    Screened for originality? Yes


















    Journal RSS





    Sign up for new issue notifications










    10.1088/1361-6528/ad568b

    Abstract



    Biomedical analytical applications, as well as the industrial production of high-quality nano- and submicrometre particles, require accurate methods to quantify the absolute number concentration of particles. In this context, small angle X-ray scattering (SAXS) is a powerful tool to determine the particle size and concentration traceable to the Système international d'unités (SI). Therefore, absolute measurements of the scattering cross-section must be performed, which require precise knowledge of all experimental parameters, such as the electron density of solvent and particles, whereas the latter is often unknown. Within the present study, novel SAXS-based approaches to determine the size distribution, density and number concentrations of sub-micron spherical silica particles with narrow size distributions and mean diameterss between 160 nm and 430 nm are presented. For the first-time traceable density and number concentration measurements of silica particles are presented and current challenges in SAXS measurements such as beam-smearing, poorly known electron densities and moderately polydisperse samples are addressed. In addition, and for comparison purpose, atomic force microscopy has been used for traceable measurements of the size distribution and single particle inductively coupled plasma mass spectrometry with the dynamic mass flow approach for the accurate quantification of the number concentrations of silica particles. The possibilities and limitations of the current approaches are critically discussed in this study.




    Export citation and abstract

    BibTeX
    RIS







    As the Version of Record of this article is going to be / has been published on a gold open access basis under a CC BY 4.0 licence, this Accepted Manuscript is available for reuse under a CC BY 4.0 licence immediately.


    Everyone is permitted to use all or part of the original content in this article, provided that they adhere to all the terms of the licence https://creativecommons.org/licences/by/4.0


    Although reasonable endeavours have been taken to obtain all necessary permissions from third parties to include their copyrighted content within this article, their full citation and copyright line may not be present in this Accepted Manuscript version. Before using any content from this article, please refer to the Version of Record on IOPscience once published for full citation and copyright details, as permissions may be required. All third party content is fully copyright protected and is not published on a gold open access basis under a CC BY licence, unless that is specifically stated in the figure caption in the Version of Record.





















    Back to top









    10.1088/1361-6528/ad568b

    You may also like

    Journal articles



    First comprehensive inter-comparison of aerosol electrometers for particle sizes up to 200 nm and concentration range 1000 cm?3 to 17?000 cm?3


    Simplified modeling of butane dehydrogenation: deeper understanding of the system's dynamics


    Agroforestry Mapping using Multi Temporal Hybrid CNN+LSTM Framework with Landsat 8 Satellite Imagery and Google Earth Engine


    A boundary element method of bidomain modeling for predicting cellular responses to electromagnetic fields


    Quantification of nanoparticle concentration in colloidal suspensions by a non-destructive optical method


    Synthesis of Energy-Conserving Quantum Circuits with XY interaction



































    IOPscience


    Journals


    Books


    IOP Conference Series


    About IOPscience


    Contact Us


    Developing countries access


    IOP Publishing open
    access policy


    Accessibility




    IOP Publishing


    Copyright 2024 IOP Publishing


    Terms and Conditions


    Disclaimer


    Privacy
    and Cookie Policy




    Publishing Support


    Authors


    Reviewers


    Conference
    Organisers












    This site uses cookies. By continuing to use this
    site you agree to our use of cookies.



    IOP Publishing Twitter page






    IOP Publishing Facebook page






    IOP Publishing LinkedIn page






    IOP Publishing Youtube page






    IOP Publishing WeChat QR code






    IOP Publishing Weibo page























  • 原文来源:https://iopscience.iop.org/article/10.1088/1361-6528/ad568b
相关报告
  • 《With X-Ray Analysis, an Asteroid Provides a View into Our Solar System’s Past》

    • 来源专题:可再生能源
    • 编译者:武春亮
    • 发布时间:2024-07-01
    • Skip to main content Enter the terms you wish to search for. Search History Organization Chart Work with Us Newsroom Careers Energy.gov Offices National Labs Office of Science Main navigation Office of Science Home About Us About Us Leadership History Honors and Awards Diversity, Equity & Inclusion Energy.gov Home Initiatives Initiatives Advanced and Sustainable Energy Artificial Intelligence and Machine Learning Genomics High Performance Computing Large Scale Scientific Instrumentation Quantum Information Science Mission Mission Science Programs Field Mission Support Office of Project Assessment Science & Innovation Science & Innovation National Labs Universities User Facilities PuRe Data Resources Science Highlights DOE Explains... SBIR/STTR Funding Funding Funding Opportunities Awards Budget Portfolio Analysis and Management System (PAMS) Resources Resources Newsroom Scientific and Technical Information Brochures, Logos, and Information Resources FACA Science HQ FOIA Requests CSC (Chicago and Oak Ridge) FOIA Requests Jobs button button Office of Science With X-Ray Analysis, an Asteroid Provides a View into Our Solar System’s Past June 24, 2024 Office of Science With X-Ray Analysis, an Asteroid Provides a View into Our Solar System’s Past Artwork showing the Hayabusa2 spacecraft retrieving a sample from the surface of the asteroid Ryugu. Image courtesy of Akihiro Ikeshita Imagine opening a time capsule, hoping to learn about the ancient past. Except, instead of a box or a chest, it’s an asteroid that could provide insights into the very dawn of life on Earth. That was the situation that researchers using the Advanced Light Source (ALS) faced. As the ALS is a Department of Energy (DOE) Office of Science user facility, the team that works there sees a lot of unusual items, from materials for solar cells to particles influenced by wildfires. But even for this crew, a sample from an asteroid was unusual. Fortunately, the innovative tools available at the ALS allowed them to support scientists digging into the history of these rocks delivered from space.Just like studying rocks on Earth can tell us about Earth’s early history, studying primitive small bodies such as asteroids, meteorites, and comets can tell us about our solar system’s history. Chondrites are a particularly useful type of meteorite. They are undifferentiated and chemically primitive. The rocks in them trace back to dust and small grains in the early solar system that came together to form a large parent body. A certain type of chondrites (called carbonaceous chondrites) preserve relatively abundant chemicals that are easily vaporized, including carbon and water. These are the building blocks of life on Earth. By studying these preserved materials, scientists can investigate one of humanity's fundamental questions: “Where did we come from?”  The team using the ALS examined a sample from the surface of a carbonaceous-type asteroid, Ryugu. They expected this asteroid to be similar to carbonaceous chondrite meteorites. Ryugu is relatively close to Earth, compared to asteroids in the main belt between Mars and Jupiter. Scientists hypothesize that Ryugu is a rubble-pile asteroid. They think that it formed when an object hit its parent body and then the rocks that were ejected re-coalesced into a new asteroid. After that process, the asteroid moved from the main belt to near-Earth orbit. The Japan Aerospace Exploration Agency (JAXA)’s spacecraft, Hayabusa2, collected samples from two locations on the surface of Ryugu in 2019 and returned them to Earth in 2020. The curatorial work at JAXA found a total of 5.4 g of sample. The agency allocated a small portion of the sample to the Hayabusa2 initial analysis team, consisting of about 400 scientists around the world. Hikaru Yabuta at Hiroshima University led one of six sub-teams of the initial analysis team. Ultrathin sections of the asteroid particles arrived at the ALS at DOE’s Lawrence Berkeley National Laboratory. The ALS allows scientists to precisely identify the elements and molecules inside materials. It uses a particle accelerator to produce extraordinarily bright X-ray beams. Like the X-rays at a doctor’s office, they reveal information about what is inside an object. But instead of just highlighting bones, these X-rays allow scientists to probe the chemical and structural properties of the matter itself. First, the team carefully scanned the sample in long horizontal rows—like text in a book—with X-rays. By measuring how the X-rays change as the scanning happens, scientists could identify individual grains of organic material in the asteroid sample. These grains were tiny – only 100 times bigger than a strand of DNA. Once the scientists identified grains of interest, they used X-rays to reveal the type of chemical bonds in the organic carbon grains. In this case, the researchers used the process to map out the various elements and functional groups (specific arrangements of atoms) in the sample. Based on this analysis, the scientists found four different types of carbon compounds as well as different types of structures. After identifying these materials, the scientists compared them to similar meteorites that they already knew the history of. Piecing together all of this data allowed them to outline a broad history of the asteroid during the early solar system, which formed about 4.6 billion years ago. The chemical compositions of the organic carbon in the samples indicated that Ryugu’s organic matter resulted from the precursors to that matter changing during a chemical reaction with liquid water on the asteroid’s parent body. The isotopes of carbon in the samples reflected that the organic precursors came from the extremely cold environment of space (about -200 °C). The team was the first to prove the direct link between organic matter in the carbonaceous asteroid and the similar organic matter in primitive carbonaceous chondrites (meteorites). There was one type of material notably missing – graphite. Graphite is a familiar form of carbon used in pencil leads. In asteroids, graphite or graphite-like material is a sign that the carbon was formed by radiogenic heating in parent bodies for several million years. The lack of it suggests that the sample collected from the asteroid was never exposed to heat above 390 °F (200 °C).Studying the material from Ryugu wasn’t the first or likely the last time that scientists will use the ALS to take a close look at rocks from space. Researchers used the ALS to analyze dust particles from the comet 81P/Wild 2 collected by NASA’s spacecraft Stardust in 2006. They found that the comet dust contained organic matter. This matter was composed of nitrogen- and oxygen-bearing chemical bonds as well as types of organic matter similar to that observed from the asteroid Ryugu and other chondritic meteorites.These studies demonstrated tools and techniques that have proven useful for analyzing samples like those from NASA’s OSIRIS-REx mission. This mission collected samples from the asteroid Bennu. In the fall of 2023, it returned them to Earth. The agency recently released a catalog of samples for scientists to study.  The ALS and other light sources allow us to draw lines from the earliest history of our solar system to today. Through shedding light on the objects in our current solar system, the DOE Office of Science scientists and user facilities may one day help us better understand how Earth became habitable. Shannon Brescher Shea Shannon Brescher Shea (shannon.shea@science.doe.gov) is the social media manager and senior writer/editor in the Office of Science’s Office of Communications and Public Affairs. more by this author Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 (202) 586-5430 Sign Up for Email Updates Twitter Youtube Linkedin An office of About Office of Science Careers & Internships SC Home Contact Energy.gov Resources Budget & Performance Covid-19 Response Directives, Delegations & Requirements FOIA Inspector General Privacy Program Small Business Federal Government The White House USA.gov Vote.gov Web Policies Privacy No Fear Act Whistleblower Protection Notice of EEO Findings of Discrimination Information Quality Open Gov Accessibility Vulnerability Disclosure Program
  • 《Nature,6月24日,Structural plasticity of SARS-CoV-2 3CL Mpro active site cavity revealed by room temperature X-ray crystallography》

    • 来源专题:COVID-19科研动态监测
    • 编译者:zhangmin
    • 发布时间:2020-06-25
    • Structural plasticity of SARS-CoV-2 3CL Mpro active site cavity revealed by room temperature X-ray crystallography Daniel W. Kneller, Gwyndalyn Phillips, Hugh M. O’Neill, Robert Jedrzejczak, Lucy Stols, Paul Langan, Andrzej Joachimiak, Leighton Coates & Andrey Kovalevsky Nature Communications volume 11, Article number: 3202 (2020) Abstract The COVID-19 disease caused by the SARS-CoV-2 coronavirus has become a pandemic health crisis. An attractive target for antiviral inhibitors is the main protease 3CL Mpro due to its essential role in processing the polyproteins translated from viral RNA. Here we report the room temperature X-ray structure of unliganded SARS-CoV-2 3CL Mpro, revealing the ligand-free structure of the active site and the conformation of the catalytic site cavity at near-physiological temperature. Comparison with previously reported low-temperature ligand-free and inhibitor-bound structures suggest that the room temperature structure may provide more relevant information at physiological temperatures for aiding in molecular docking studies.