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Fabrication and cha...
Fabrication and characterisation of a silicon-borosilicate glass microfluidic device for synchrotron-based hard X-ray spectroscopy studies
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- Raj, Pushparani (författare)
- MAX IV Laboratory, Lund University, Lund, Sweden
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- Barbe, Laurent (författare)
- Dept. Materials Science and Engineering, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
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- Andersson, Martin (författare)
- Dept. Materials Science and Engineering, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
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- De Albuquerque Moreira, Milena (författare)
- Dept. Materials Science and Engineering, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
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- Haase, Dörthe (författare)
- MAX IV Laboratory, Lund University, Lund, Sweden
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- Wootton, James (författare)
- MAX IV Laboratory, Lund University, Lund, Sweden
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- Nehzati, Susan (författare)
- MAX IV Laboratory, Lund University, Lund, Sweden
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- Terry, Ann E. (författare)
- MAX IV Laboratory, Lund University, Lund, Sweden
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- Friel, Ross J., Dr, 1982- (författare)
- Högskolan i Halmstad,Centrum för forskning om inbyggda system (CERES)
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- Tenje, Maria (författare)
- Dept. Materials Science and Engineering, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
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- Sigfridsson Clauss, Kajsa G. V. (författare)
- MAX IV Laboratory, Lund University, Lund, Sweden
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MAX IV Laboratory, Lund University, Lund, Sweden Dept Materials Science and Engineering, Science for Life Laboratory, Uppsala University, Uppsala, Sweden (creator_code:org_t)
- Cambridge : RSC Publishing, 2021
- 2021
- Engelska.
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Ingår i: RSC Advances. - Cambridge : RSC Publishing. - 2046-2069. ; 11:47, s. 29859-29869
- Relaterad länk:
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https://doi.org/10.1...
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https://hh.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Some of the most fundamental chemical building blocks of life on Earth are the metal elements. X-ray absorption spectroscopy (XAS) is an element-specific technique that can analyse the local atomic and electronic structure of, for example, the active sites in catalysts and energy materials and allow the metal sites in biological samples to be identified and understood. A microfluidic device capable of withstanding the intense hard X-ray beams of a 4th generation synchrotron and harsh chemical sample conditions is presented in this work. The device is evaluated at the K-edges of iron and bromine and the L3-edge of lead, in both transmission and fluorescence mode detection and in a wide range of sample concentrations, as low as 0.001 M. The device is fabricated in silicon and glass with plasma etched microchannels defined in the silicon wafer before anodic bonding of the glass wafer into a complete device. The device is supported with a well-designed printed chip holder that made the microfluidic device portable and easy to handle. The chip holder plays a pivotal role in mounting the delicate microfluidic device on the beamline stage. Testing validated that the device was sufficiently robust to contain and flow through harsh acids and toxic samples. There was also no significant radiation damage to the device observed, despite focusing with intense X-ray beams for multiple hours. The quality of X-ray spectra collected is comparable to that from standard methods; hence we present a robust microfluidic device to analyse liquid samples using synchrotron XAS.
Ämnesord
- NATURVETENSKAP -- Biologi -- Strukturbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Structural Biology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
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Raj, Pushparani
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Barbe, Laurent
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Andersson, Marti ...
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De Albuquerque M ...
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Haase, Dörthe
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Wootton, James
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visa fler...
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Nehzati, Susan
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Terry, Ann E.
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Friel, Ross J., ...
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Tenje, Maria
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Sigfridsson Clau ...
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- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Biologi
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och Strukturbiologi
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Materialteknik
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och Bearbetnings yt ...
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RSC Advances
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Högskolan i Halmstad