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Journal article
Colloidal Stability, Sedimentation, and Aggregation of Crystalline Two-Dimensional Crumpled Birnessite Flakes, Their Dye Adsorption and Immune Cell Response
Langmuir, v 41(7), pp 4482-4490
14 Feb 2025
PMID: 39951550
Featured in Collection : Research Supported by Drexel Libraries' OA Programs
Abstract
Highly crystalline two-dimensional (2D) flakes of birnessite, a polymorph of manganese oxide with a MnO
chemistry, were synthesized by reacting manganese oxide, Mn
O
, at 80 °C with aqueous solutions of tetramethylammonium hydroxide (TMAH) for tens of hours. Their colloidal stability, aggregation, and sedimentation were studied as a function of ionic strengths of Na
and Li
cations. After reaction, a water-based stable colloidal suspension (ζ-potential ∼ -31 ± 1 mV) was obtained. Mixing the colloidal suspension with a LiCl or NaCl aqueous solution resulted in the sedimentation of crumpled flakes, as evidenced by electron microscopy (transmission and scanning). Concomitant with the sedimentation, the TMA
cations present after synthesis are exchanged by the alkali ions, as evidenced by a decrease in the
-spacings between the 2D sheets illustrated by X-ray diffraction (XRD). Both Na and Li uptakes were quantified by elemental analysis via inductively coupled plasma tandem mass spectrometry, giving Li
Mn
O
and Na
Mn
O
. Rhodamine 6G dye was also studied as a sedimentation agent, resulting in a maximum uptake of 550 mg (1.15 mmol) of dye per g of birnessite. To explore the immune response of the Li
-intercalated crumpled flakes, the activation of antigen-presenting cells by the flakes was investigated. It was found that the immune cells were slightly activated in a dose-dependent manner, indicating that the materials may have good biocompatibility and thus possibe applications in healthcare.
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Details
- Title
- Colloidal Stability, Sedimentation, and Aggregation of Crystalline Two-Dimensional Crumpled Birnessite Flakes, Their Dye Adsorption and Immune Cell Response
- Creators
- Mary Qin Hassig - Drexel UniversityAdam D Walter - Drexel UniversityVanessa R Morris - Fayetteville State UniversityYucheng Zhu - Drexel UniversityAhmed M H Ibrahim - Drexel UniversityAbijah Gordon - Department of Chemistry, Physics and Materials Science, Fayetteville Statue University, Fayetteville, North Carolina 28301, United StatesMohamed A Ibrahim - Drexel UniversityHao Cheng - Drexel UniversityHussein O Badr - Drexel UniversityMichel W Barsoum (Corresponding Author) - Drexel University
- Publication Details
- Langmuir, v 41(7), pp 4482-4490
- Publisher
- ACS Publications
- Number of pages
- 9
- Grant note
- National Institute of Allergy and Infectious Diseases: 4906 Agilent University Relations SIRA program: P200A180032 Department of Education Graduate Assistance in Areas of National Need Grant: 1740795 Ceramics Division of NSF: DMR-2211319 NSF: HRD 1800795 NSF HBCU-UP RIAMurata Manufacturing Co. Ltd of Japan: R56AI177800 National Institute of Allergy and Infectious Diseases of the National Institutes of Health: 1839505 National Science Foundation
The authors would like to acknowledge Materials Characterization Core at Drexel University where most of the characterizations, XRD, SEM, XPS, and TEM analyses were performed. We would also like to thank Yao Zhou and Dr. Nicolas J. Alvarez for their assistance with the collection of the zeta data. The authors additionally thank the Agilent University Relations SIRA program (Grant ID #4906) for the loan of the Agilent 8900 ICP-QQQ. This work was funded by the Department of Education Graduate Assistance in Areas of National Need Grant, fund P200A180032; Ceramics Division of NSF (1740795); NSF proposal number DMR-2211319; NSF HBCU-UP RIA (HRD 1800795); Murata Manufacturing Co. Ltd of Japan. The work is also supported by the National Institute of Allergy and Infectious Diseases of the National Institutes of Health (Award Number R56AI177800) and the National Science Foundation (Award Number 1839505).
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:001422565300001
- Scopus ID
- 2-s2.0-85217791734
- Other Identifier
- 991022030047604721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary