Research Data Leeds Repository

Citation

Li, Shunbo (2017) Dataset associated with 'Synchrotron FTIR Mapping of Mineralization in a Microfluidic Device'. University of Leeds. [Dataset] https://doi.org/10.5518/183

Dataset description

Fourier transform infrared micro-spectroscopy provides an effective means of performing rapid, non-destructive, and label-free analysis of specimens according to their vibrational modes. However, as water absorbs very strongly in the infrared region, analysis of aqueous solutions in transmission mode can suffer from problems with signal saturation. We here describe the fabrication of a novel microfluidic device that overcomes this problem. Devices with channel depths of just 3 µm were constructed from calcium fluoride using photolithography and hot embossing bonding, where calcium fluoride was selected due to its transparency in the IR region. The utility of this device was then demonstrated by employing it to follow the precipitation pathways of calcium sulfate and calcium carbonate using synchrotron FTIR micro-spectroscopy. Importantly, due to the high brightness provided by synchrotron radiation, and the fact that the reacting ions (HCO3- , CO32- and SO42-) and the different mineral polymorphs all have finger print spectra in the measured IR range, this method can be used to acquire time-resolved, hyperspectral maps of the mineral particles formed within the sample cell, and then study the interaction and evolution of particles. The data provide new insight into the formation pathway of a population of crystals in confined volumes, and demonstrate that this in situ, real-time detection system provides a powerful tool for studying crystallization processes. And the useful dataset were deposited here.

Keywords:	Synchrotron FTIR, Microfluidic device, Mineralization, Chemical mapping, In situ technique
Subjects:	F000 - Physical sciences > F100 - Chemistry > F180 - Analytical chemistry
Divisions:	Faculty of Engineering and Physical Sciences > School of Chemistry
Related resources:	Location Type https://eprints.whiterose.ac.uk/114434/ Publication https://doi.org/10.1039/C6LC01393G Publication
License:	Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited:	11 Apr 2017 18:14
URI:	https://archive.researchdata.leeds.ac.uk/id/eprint/140
Additional details Additional details Creators or authors: Creators ORCID Other ID Email Primary affiliation Primary affiliation ID Primary affiliation ID type Secondary affiliation Secondary affiliation ID Secondary affiliation ID type Li, Shunbo https://orcid.org/0000-0001-5297-9079 University of Leeds https://ror.org/024mrxd33 ror Type of data: Dataset Research funders: Engineering and Physical Sciences Research Council (EPSRC) Grant numbers: EP/L015005/1, EP/H005374/1, EP/N002423/1 Publication date: 2017 Resource language: English Metadata language: English Research project title: Biomolecule-directed evolution of inorganic nanomaterials Publisher: University of Leeds Contact email: chmslic@leeds.ac.uk Last Modified: 20 Aug 2024 10:02

Files

Documentation

readme.txt [2kB] readme.txt [2kB] readme.txt [2kB] Security: Anyone File name: readme.txt Content type: Documentation Mime-Type: text/plain File size: 2kB

Data

Synchrotron FTIR spectrum [11MB] Synchrotron FTIR spectrum [11MB] Synchrotron FTIR spectrum [11MB] Security: Anyone File name: Synchrotron_data.zip Content type: Data Mime-Type: application/zip File size: 11MB

Absorption spectrum under different pathlength [86kB] Absorption spectrum under different pathlength [86kB] Absorption spectrum under different pathlength [86kB] Security: Anyone File name: height_25um_6um.opj Content type: Data File size: 86kB

Raman spectrum [191kB] Raman spectrum [191kB] Raman spectrum [191kB] Security: Anyone File name: Raman_ACC_vat_Cal.opj Content type: Data File size: 191kB

Normal FTIR spectrum of standard phases [664kB] Normal FTIR spectrum of standard phases [664kB] Normal FTIR spectrum of standard phases [664kB] Security: Anyone File name: LabIR_ACC_vat_cal_gypsum.opj Content type: Data File size: 664kB

Normal FTIR spectrum during transformation [270kB] Normal FTIR spectrum during transformation [270kB] Normal FTIR spectrum during transformation [270kB] Security: Anyone File name: bulk_transformation_FTIR.opj Content type: Data File size: 270kB

powder XRD data [244kB] powder XRD data [244kB] powder XRD data [244kB] Security: Anyone File name: bulk_transformation_XRD.opj Content type: Data File size: 244kB

CaF2 transmission coefficient [65kB] CaF2 transmission coefficient [65kB] CaF2 transmission coefficient [65kB] Security: Anyone File name: CaF2_1mm_IR_transmission.pdf Content type: Data Mime-Type: application/pdf File size: 65kB