1
|
Krupnik L, Avaro J, Liebi M, Anaraki NI, Kohlbrecher J, Sologubenko A, Handschin S, Rzepiela AJ, Appel C, Totu T, Blanchet CE, Alston AEB, Digigow R, Philipp E, Flühmann B, Silva BFB, Neels A, Wick P. Iron-carbohydrate complexes treating iron anaemia: Understanding the nano-structure and interactions with proteins through orthogonal characterisation. J Control Release 2024; 368:566-579. [PMID: 38438093 DOI: 10.1016/j.jconrel.2024.02.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/24/2024] [Accepted: 02/27/2024] [Indexed: 03/06/2024]
Abstract
Intravenous (IV) iron-carbohydrate complexes are widely used nanoparticles (NPs) to treat iron deficiency anaemia, often associated with medical conditions such as chronic kidney disease, heart failure and various inflammatory conditions. Even though a plethora of physicochemical characterisation data and clinical studies are available for these products, evidence-based correlation between physicochemical properties of iron-carbohydrate complexes and clinical outcome has not fully been elucidated yet. Studies on other metal oxide NPs suggest that early interactions between NPs and blood upon IV injection are key to understanding how differences in physicochemical characteristics of iron-carbohydrate complexes cause variance in clinical outcomes. We therefore investigated the core-ligand structure of two clinically relevant iron-carbohydrate complexes, iron sucrose (IS) and ferric carboxymaltose (FCM), and their interactions with two structurally different human plasma proteins, human serum albumin (HSA) and fibrinogen, using a combination of cryo-scanning transmission electron microscopy (cryo-STEM), x-ray diffraction (XRD), small-angle x-ray scattering (SAXS) and small-angle neutron scattering (SANS). Using this orthogonal approach, we defined the nano-structure, individual building blocks and surface morphology for IS and FCM. Importantly, we revealed significant differences in the surface morphology of the iron-carbohydrate complexes. FCM shows a localised carbohydrate shell around its core, in contrast to IS, which is characterised by a diffuse and dynamic layer of carbohydrate ligand surrounding its core. We hypothesised that such differences in carbohydrate morphology determine the interaction between iron-carbohydrate complexes and proteins and therefore investigated the NPs in the presence of HSA and fibrinogen. Intriguingly, IS showed significant interaction with HSA and fibrinogen, forming NP-protein clusters, while FCM only showed significant interaction with fibrinogen. We postulate that these differences could influence bio-response of the two formulations and their clinical outcome. In conclusion, our study provides orthogonal characterisation of two clinically relevant iron-carbohydrate complexes and first hints at their interaction behaviour with proteins in the human bloodstream, setting a prerequisite towards complete understanding of the correlation between physicochemical properties and clinical outcome.
Collapse
Affiliation(s)
- Leonard Krupnik
- Center for X-ray Analytics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland; Particles-Biology Interactions Laboratory, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland; Department of Chemistry, University of Fribourg, Chemin du Musée 9, 1700 Fribourg, Switzerland
| | - Jonathan Avaro
- Center for X-ray Analytics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland
| | - Marianne Liebi
- Photon Science Division, PSI Paul Scherrer Institute, Villigen CH-5232, Switzerland; Institute of Materials, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Neda Iranpour Anaraki
- Center for X-ray Analytics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland; Particles-Biology Interactions Laboratory, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland; Department of Chemistry, University of Fribourg, Chemin du Musée 9, 1700 Fribourg, Switzerland
| | - Joachim Kohlbrecher
- Laboratory for Neutron Scattering, PSI Paul Scherrer Institute, Villigen CH-5232, Switzerland
| | - Alla Sologubenko
- Scientific Center for Optical and Electron Microscopy, ScopeM, ETH Zürich, 8093 Zürich, Switzerland
| | - Stephan Handschin
- Scientific Center for Optical and Electron Microscopy, ScopeM, ETH Zürich, 8093 Zürich, Switzerland
| | - Andrzej J Rzepiela
- Scientific Center for Optical and Electron Microscopy, ScopeM, ETH Zürich, 8093 Zürich, Switzerland
| | - Christian Appel
- Photon Science Division, PSI Paul Scherrer Institute, Villigen CH-5232, Switzerland
| | - Tiberiu Totu
- Particles-Biology Interactions Laboratory, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland; ETH Zurich, Department of Health Sciences and Technology (D-HEST), CH-8093 Zurich, Switzerland; SIB, Swiss Institute of Bioinformatics, CH-1015 Lausanne, Switzerland
| | - Clement E Blanchet
- European Molecular Biology Laboratory, Hamburg Outstation, Notkestrasse 85, Hamburg 22603, Germany
| | | | | | - Erik Philipp
- CSL Vifor, Flughofstrasse 61, CH-8152 Glattbrugg, Switzerland
| | - Beat Flühmann
- CSL Vifor, Flughofstrasse 61, CH-8152 Glattbrugg, Switzerland
| | - Bruno F B Silva
- Center for X-ray Analytics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland
| | - Antonia Neels
- Center for X-ray Analytics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland; Department of Chemistry, University of Fribourg, Chemin du Musée 9, 1700 Fribourg, Switzerland.
| | - Peter Wick
- Particles-Biology Interactions Laboratory, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
| |
Collapse
|
2
|
Li W, Wang Y, Liu F, Xie H, Yin H, Yi T. Atomic insights into the mechanisms of Al 3+ or Cr 3+ affecting ferrihydrite nucleation. RSC Adv 2023; 13:26861-26868. [PMID: 37692349 PMCID: PMC10483270 DOI: 10.1039/d3ra02945j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 08/22/2023] [Indexed: 09/12/2023] Open
Abstract
Various exotic metal cations commonly coexist with ferrihydrite nanoparticles in natural environments. Lack of knowledge about the metal cations effects on ferrihydrite nucleation and growth greatly blights the deep understanding of ferrihydrite mineralogical properties and reactivities, and thus the fates of associated nutrients, heavy metals/metalloids, and organic pollutants. Here, the nucleation processes and mechanisms of ferrihydrite nanoparticles in the presence of Al3+ or Cr3+ were studied by combining visible spectroscopy, in situ quick X-ray absorption fine structure spectroscopy and quantum chemical calculations. The formation of ferrihydrite can be divided into three stages. In stage 1, Fe(H2O)63+ forms μ-oxo Fe dimers, with the gradual increase of Fe-O bond length (dFe-O) and disappearance of Fe-O multiple scattering. In stage 2, ferrihydrite particles begin to form and grow slowly, during which dFe-O continues to increase and edge- and corner-sharing Fe-Fe bonds appear. In stage 3, ferrihydrite growth rate increases significantly and continues to the end of the reaction, with the decreases of dFe-O. The presence of metal cations at a molar ratio of 0.1 to Fe hinders the formation of μ-oxo dimers by affecting the Fe3+ hydrolysis and polymerization at stage 1 and stage 2, but promotes the conversion of the μ-oxo dimer to the dihydroxo dimer with lower energy barrier and the creation of crystal growth sites and thus enhances the ferrihydrite nucleation and growth at stage 3.
Collapse
Affiliation(s)
- Wei Li
- Institute of Agricultural Quality Standards and Testing Technology Research, Hubei Academy of Agricultural Sciences Wuhan Hubei 430064 China
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River) Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University Wuhan 430070 PR China
| | - Yan Wang
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River) Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University Wuhan 430070 PR China
| | - Fan Liu
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River) Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University Wuhan 430070 PR China
| | - Haijiao Xie
- Hangzhou Yanqu Information Technology Co., Ltd Y2, 2nd Floor, Building 2, Xixi Legu Creative Pioneering Park, No. 712 Wen'er West Road, Xihu District Hangzhou Zhejiang 310003 P.R. China
| | - Hui Yin
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River) Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University Wuhan 430070 PR China
| | - Tian Yi
- Institute of Agricultural Quality Standards and Testing Technology Research, Hubei Academy of Agricultural Sciences Wuhan Hubei 430064 China
| |
Collapse
|
3
|
Krupnik L, Joshi P, Kappler A, Flühmann B, Alston AB, Digigow R, Wick P, Neels A. Critical nanomaterial attributes of iron-carbohydrate nanoparticles: Leveraging orthogonal methods to resolve the 3-dimensional structure. Eur J Pharm Sci 2023; 188:106521. [PMID: 37423578 DOI: 10.1016/j.ejps.2023.106521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 06/08/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
Intravenous iron-carbohydrate nanomedicines are widely used to treat iron deficiency and iron deficiency anemia across a wide breadth of patient populations. These colloidal solutions of nanoparticles are complex drugs which inherently makes physicochemical characterization more challenging than small molecule drugs. There have been advancements in physicochemical characterization techniques such as dynamic light scattering and zeta potential measurement, that have provided a better understanding of the physical structure of these drug products in vitro. However, establishment and validation of complementary and orthogonal approaches are necessary to better understand the 3-dimensional physical structure of the iron-carbohydrate complexes, particularly with regard to their physical state in the context of the nanoparticle interaction with biological components such as whole blood (i.e. the nano-bio interface).
Collapse
Affiliation(s)
- Leonard Krupnik
- Laboratory for Particles-Biology Interactions, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland; Center for X-ray Analytics, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland; Department of Chemistry, University of Fribourg, Fribourg 1700, Switzerland
| | - Prachi Joshi
- Geomicrobiology, Department of Geosciences, University of Tuebingen, Tuebingen 72076, Germany
| | - Andreas Kappler
- Geomicrobiology, Department of Geosciences, University of Tuebingen, Tuebingen 72076, Germany; Cluster of Excellence: EXC 2124: Controlling Microbes to Fight Infection, Tuebingen 72076, Germany
| | - Beat Flühmann
- CSL Vifor, Flughofstrasse 61, Glattbrug 8152, Switzerland
| | | | | | - Peter Wick
- Laboratory for Particles-Biology Interactions, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland
| | - Antonia Neels
- Center for X-ray Analytics, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland; Department of Chemistry, University of Fribourg, Fribourg 1700, Switzerland
| |
Collapse
|
4
|
Zhang C, Wu P, Yang Z, Liu F, Luo H, Luo J. Effect of iron cyclic transformation on the natural purification of antimony in contaminated reservoirs of mines. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 874:162510. [PMID: 36868284 DOI: 10.1016/j.scitotenv.2023.162510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
To further understand the purification mechanism of antimony (Sb) in reservoirs, samples of stratified water and bottom interface sediment were collected in this study. The cross-flow ultrafiltration technique was used to separate the truly dissolved (<1 kDa) and colloidal (1 kDa-0.45 μm) phases of water, and two modified sequential extraction techniques were used to determine the Sb and Fe mineral forms in sediment, respectively. The results showed that the total Sb concentration could decrease from 142.2 μg/L in surface water to 98.6 μg/L at 16 m; this was contributed to by the removal of truly dissolved Sb. In comparison to particulate Sb (>0.45 μm), the formation of colloidal Sb played a greater role in the purification process. There was a positive correlation between Sb and Fe in the colloidal phase (r = 0.45, P < 0.05). The generation of colloidal Fe could be promoted by higher temperatures, pH values, DO, and DOC in the upper layer (0-5 m). However, the complexation of DOC with colloidal Fe inhibited the adsorption of truly dissolved Sb. After entering the sediment, the secondary release of Sb could not increase the Sb concentration in the lower layer obviously, while the supplementation of Fe(III) could further enhance Sb natural purification.
Collapse
Affiliation(s)
- Chipeng Zhang
- College of Resources and Environmental Engineering, Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, Guiyang 550025, China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guizhou University, Guiyang 550025, China.
| | - Pan Wu
- College of Resources and Environmental Engineering, Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, Guiyang 550025, China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Zeyan Yang
- College of Resources and Environmental Engineering, Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Fengzhu Liu
- College of Resources and Environmental Engineering, Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Huan Luo
- College of Resources and Environmental Engineering, Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Jianglan Luo
- College of Resources and Environmental Engineering, Key Laboratory of Karst Georesources and Environment, Ministry of Education, Guizhou University, Guiyang 550025, China
| |
Collapse
|
5
|
Shao X, Huang Y, Wang G. Microfluidic devices for protein analysis using intact and top‐down mass spectrometry. VIEW 2022. [DOI: 10.1002/viw.20220032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Affiliation(s)
- Xinyang Shao
- Institute for Cell Analysis Shenzhen Bay Laboratory Shenzhen China
- Biomedical Pioneering Innovation Center Peking University Beijing China
- Peking‐Tsinghua Center for Life Sciences Peking University Beijing China
| | - Yanyi Huang
- Institute for Cell Analysis Shenzhen Bay Laboratory Shenzhen China
- Biomedical Pioneering Innovation Center Peking University Beijing China
- Peking‐Tsinghua Center for Life Sciences Peking University Beijing China
- College of Chemistry and Molecular Engineering and Beijing National Laboratory for Molecular Sciences Peking University Beijing China
| | - Guanbo Wang
- Institute for Cell Analysis Shenzhen Bay Laboratory Shenzhen China
- Biomedical Pioneering Innovation Center Peking University Beijing China
| |
Collapse
|
6
|
Parmar KS, Kim JH, Bist A, Dua P, Tiwari PK, Phuruangrat A, Lee JS. Superparamagnetic and Perfect-Paramagnetic Zinc Ferrite Quantum Dots from Microwave-Assisted Tunable Synthesis. ACS OMEGA 2022; 7:31607-31611. [PMID: 36092622 PMCID: PMC9453939 DOI: 10.1021/acsomega.2c04668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
The properties of quantum dot (QD)-size material depend directly upon its unit cell structure. Spinel zinc ferrite QD powder is produced via a one-pot microwave-assisted hydrothermal synthesis for just 5 min. Varying initial pH values of the preparation sol from 6 to 12 enlarges the Zn/Fe atomic ratio (by ca. 10%), unit cell volume (by ca. 0.5%), particle size (3.5-4.5 nm), and degree of inversion. This leads to a change in the magnetic behavior of the QD-size zinc ferrite from a superparamagnetic to a perfect-paramagnetic type. This novel finding points that the significant changes in the inherent structural parameters of spinel ZnFe2O4 QDs (Zn/Fe ratio and degree of inversion) induced by the systematic pH change of the preparation sol are exclusively responsible for the observed unique magnetic behavior instead of mere QD (single domain) nanosizes.
Collapse
Affiliation(s)
- Kanak
Pal S. Parmar
- Department
of Physics, University of Petroleum and
Energy Studies (UPES), Dehradun 248007, India
| | - Jeong Hun Kim
- School
of Energy and Chemical Engineering, Ulsan
National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, South Korea
| | - Amita Bist
- Department
of Science, Atal Utkrisht Government Inter
College, Srikot, Uttarkashi 249193, India
| | - Piyush Dua
- College
of Applied Sciences, Suhar University of
Technology and Applied Sciences, Muscat 133, Oman
| | - Pawan K. Tiwari
- Department
of Physics, Birla Institute of Technology, Mesra, Ranchi 835215, India
| | - Anukorn Phuruangrat
- Division
of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Jae Sung Lee
- School
of Energy and Chemical Engineering, Ulsan
National Institute of Science and Technology (UNIST), 50 UNIST, Ulsan 44919, South Korea
| |
Collapse
|
7
|
The coprecipitation formation study of iron oxide nanoparticles with the assist of a gas/liquid mixed phase fluidic reactor. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
8
|
Li W, Chaihu L, Jiang J, Wu B, Zheng X, Dai R, Tian Y, Huang Y, Wang G, Men Y. Microfluidic Platform for Time-Resolved Characterization of Protein Higher-Order Structures and Dynamics Using Top-Down Mass Spectrometry. Anal Chem 2022; 94:7520-7527. [PMID: 35584038 DOI: 10.1021/acs.analchem.2c00077] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Characterization of protein higher-order structures and dynamics is essential for understanding the biological functions of proteins and revealing the underlying mechanisms. Top-down mass spectrometry (MS) accesses structural information at both the intact protein level and the peptide fragment level. Native top-down MS allows analysis of a protein complex's architecture and subunits' identity and modifications. Top-down hydrogen/deuterium exchange (HDX) MS offers high spatial resolution for conformational or binding interface analysis and enables conformer-specific characterization. A microfluidic chip can provide superior performance for front-end reactions useful for these MS workflows, such as flexibility in manipulating multiple reactant flows, integrating various functional modules, and automation. However, most microchip-MS devices are designed for bottom-up approaches or top-down proteomics. Here, we demonstrate a strategy for designing a microchip for top-down MS analysis of protein higher-order structures and dynamics. It is suitable for time-resolved native MS and HDX MS, with designs aiming for efficient ionization of intact protein complexes, flexible manipulation of multiple reactant flows, and precise control of reaction times over a broad range of flow rates on the submicroliter per minute scale. The performance of the prototype device is demonstrated by measurements of systems including monoclonal antibodies, antibody-antigen complexes, and coexisting protein conformers. This strategy may benefit elaborate structural analysis of biomacromolecules and inspire method development using the microchip-MS approach.
Collapse
Affiliation(s)
- Wen Li
- Research Center for Biomedical Optics and Molecular Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Lingxiao Chaihu
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.,Institute of Cell Analysis, Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Jialu Jiang
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Bizhu Wu
- Research Center for Biomedical Optics and Molecular Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xuan Zheng
- Research Center for Biomedical Optics and Molecular Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Rongrong Dai
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Ye Tian
- Institute of Cell Analysis, Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Yanyi Huang
- Institute of Cell Analysis, Shenzhen Bay Laboratory, Shenzhen 518132, China.,Biomedical Pioneering Innovation Centre, Peking University, Beijing 100871, China
| | - Guanbo Wang
- Institute of Cell Analysis, Shenzhen Bay Laboratory, Shenzhen 518132, China.,Biomedical Pioneering Innovation Centre, Peking University, Beijing 100871, China
| | - Yongfan Men
- Research Center for Biomedical Optics and Molecular Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| |
Collapse
|
9
|
Mao Y, Zhang Z, Zhan H, Sun J, Li Y, Su Z, Chen Y, Gao X, Huang X, Gu N. Revealing the crystal phases of primary particles formed during the coprecipitation of iron oxides. Chem Commun (Camb) 2022; 58:5749-5752. [PMID: 35446329 DOI: 10.1039/d2cc01617f] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The mechanistic investigation of the coprecipitation formation of iron oxides has been a long-standing challenge due to the rapid reaction kinetics and high complexity of iron hydrolysis reactions. Although a few studies have suggested that the coprecipitation of iron oxide nanoparticles follows a non-classic route through inter-particle attachment, the compositions of the primary particles remain undetermined. Herein, by using a specially designed gas/liquid mixed phase fluidic reactor we controlled the reaction time from 3 s to over 5 min, and successfully identified the concentration of different intermediate phases as a function of time. We suggest that the initial Fe3+ ions are hydrolyzed under the alkaline condition to give Fe(OH)3, which then rapidly dehydrates to yield α-FeOOH. In the presence of Fe2+ ions, which could also act as the catalyst, α-FeOOH finally transforms to Fe3O4.
Collapse
Affiliation(s)
- Yu Mao
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210096, China.
| | - Zuoheng Zhang
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210096, China.
| | - Hongfeng Zhan
- State Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China.
| | - Jianfei Sun
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210096, China.
| | - Yan Li
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210096, China.
| | - Zhenhuang Su
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Yonghua Chen
- State Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China.
| | - Xingyu Gao
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Xiao Huang
- State Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China.
| | - Ning Gu
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210096, China.
| |
Collapse
|
10
|
Perton F, Cotin G, Kiefer C, Strub JM, Cianferani S, Greneche JM, Parizel N, Heinrich B, Pichon B, Mertz D, Begin-Colin S. Iron Stearate Structures: An Original Tool for Nanoparticles Design. Inorg Chem 2021; 60:12445-12456. [PMID: 34339179 DOI: 10.1021/acs.inorgchem.1c01689] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Iron carboxylates are widely used as iron precursors in the thermal decomposition process or considered as in situ formed intermediate precursors. Their molecular and three-dimensional (3D)-structural nature has been shown to affect the shape, size, and composition of the resulting iron oxide nanoparticles (NPs). Among carboxylate precursors, stearates are particularly attractive because of their higher stability to aging and hydration and they are used as additives in many applications. Despite the huge interest of iron stearates, very few studies aimed up to now at deciphering their full metal-ligand structures and the mechanisms allowing us to achieve in a controlled manner the bottom-up NP formation. In this work, we have thus investigated the molecular structure and composition of two iron stearate precursors, synthesized by introducing either two (FeSt2) or three (FeSt3) stearate (St) chains. Interestingly, both iron stearates consist of lamellar structures with planes of iron polynuclear complexes (polycations) separated with stearate chains in all-trans conformation. The iron content in polycations was found very different between both iron stearates. Their detailed characterizations indicate that FeSt2 is mainly composed of [Fe3-(μ3-O)St6·xH2O]Cl, with no (or few) free stearate, whereas FeSt3 is a mixture of mainly [Fe7(μ3-O(H))6(μ2-OH)xSt12-2x]St with some [Fe3(μ3-O)St6·xH2O]St and free stearic acid. The formation of bigger polynuclear complexes with FeSt3 was related to higher hydrolysis and condensation rates within the iron(III) chloride solution compared to the iron(II) chloride solution. These data suggested a nucleation mechanism based on the condensation of polycation radicals generated by the catalytic departure of two stearate chains from an iron polycation-based molecule.
Collapse
Affiliation(s)
- Francis Perton
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - Geoffrey Cotin
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - Céline Kiefer
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - Jean-Marc Strub
- Laboratoire de Spectrométrie de Masse BioOrganique, Université Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - Sarah Cianferani
- Laboratoire de Spectrométrie de Masse BioOrganique, Université Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - Jean-Marc Greneche
- Institut des Molécules et Matériaux du Mans IMMM UMR CNRS 6283, Université du Maine, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
| | - Nathalie Parizel
- Institut de Chimie de Strasbourg (UMR 7177, CNRS Unistra), F-67081 Strasbourg, France.,Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, F-67081 Strasbourg, France.,French EPR Federation of Research (Reseau National de Rpe Interdisciplinaire, RENARD), Fédération IR-RPE CNRS 3443, 67000 Strasbourg, France
| | - Benoît Heinrich
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France
| | - Benoit Pichon
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - Damien Mertz
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - Sylvie Begin-Colin
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67034 Strasbourg, France.,Labex CSC, Fondation IcFRC/Université de Strasbourg, 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| |
Collapse
|
11
|
Kuhrts L, Prévost S, Chevrier DM, Pekker P, Spaeker O, Egglseder M, Baumgartner J, Pósfai M, Faivre D. Wettability of Magnetite Nanoparticles Guides Growth from Stabilized Amorphous Ferrihydrite. J Am Chem Soc 2021; 143:10963-10969. [PMID: 34264055 PMCID: PMC8323100 DOI: 10.1021/jacs.1c02687] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Crystal formation
via amorphous precursors is a long-sought-after
gateway to engineer nanoparticles with well-controlled size and morphology.
Biomineralizing organisms, like magnetotactic bacteria, follow such
a nonclassical crystallization pathway to produce magnetite nanoparticles
with sophistication unmatched by synthetic efforts at ambient conditions.
Here, using in situ small-angle X-ray scattering,
we demonstrate how the addition of poly(arginine) in the synthetic
formation of magnetite nanoparticles induces a biomineralization-reminiscent
pathway. The addition of poly(arginine) stabilizes an amorphous ferrihydrite
precursor, shifting the magnetite formation pathway from thermodynamic
to kinetic control. Altering the energetic landscape of magnetite
formation by catalyzing the pH-dependent precursor attachment, we
tune magnetite nanoparticle size continuously, exceeding sizes observed
in magnetotactic bacteria. This mechanistic shift we uncover here
further allows for crystal morphology control by adjusting the pH-dependent
interfacial interaction between liquidlike ferrihydrite and nascent
magnetite nanoparticles, establishing a new strategy to control nanoparticle
morphology. Synthesizing compact single crystals at wetting conditions
and unique semicontinuous single-crystalline nanoparticles at dewetting
conditions in combination with an improved control over magnetite
crystallite size, we demonstrate the versatility of bio-inspired,
kinetically controlled nanoparticle formation pathways.
Collapse
Affiliation(s)
- Lucas Kuhrts
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Sylvain Prévost
- Institut Laue-Langevin, 71 avenue des Martyrs, CS 20156, 38042 Cedex 9 Grenoble, France
| | - Daniel M Chevrier
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany.,CNRS, CEA, BIAM, Aix-Marseille University, 13108 Saint-Paul-lez-Durance, France
| | - Péter Pekker
- Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Egyetem u. 10, H8200 Veszprém, Hungary
| | - Oliver Spaeker
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Mathias Egglseder
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Jens Baumgartner
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Mihály Pósfai
- Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Egyetem u. 10, H8200 Veszprém, Hungary
| | - Damien Faivre
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany.,CNRS, CEA, BIAM, Aix-Marseille University, 13108 Saint-Paul-lez-Durance, France
| |
Collapse
|
12
|
Lukić MJ, Gebauer D, Rose A. Nonclassical nucleation towards separation and recycling science: Iron and aluminium (Oxy)(hydr)oxides. Curr Opin Colloid Interface Sci 2020. [DOI: 10.1016/j.cocis.2020.03.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
13
|
Pedersen JN, Lyngsø J, Zinn T, Otzen DE, Pedersen JS. A complete picture of protein unfolding and refolding in surfactants. Chem Sci 2019; 11:699-712. [PMID: 34123043 PMCID: PMC8145811 DOI: 10.1039/c9sc04831f] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Interactions between proteins and surfactants are of relevance in many applications including food, washing powder formulations, and drug formulation. The anionic surfactant sodium dodecyl sulfate (SDS) is known to unfold globular proteins, while the non-ionic surfactant octaethyleneglycol monododecyl ether (C12E8) can be used to refold proteins from their SDS-denatured state. While unfolding have been studied in detail at the protein level, a complete picture of the interplay between protein and surfactant in these processes is lacking. This gap in our knowledge is addressed in the current work, using the β-sheet-rich globular protein β-lactoglobulin (bLG). We combined stopped-flow time-resolved SAXS, fluorescence, and circular dichroism, respectively, to provide an unprecedented in-depth picture of the different steps involved in both protein unfolding and refolding in the presence of SDS and C12E8. During unfolding, core-shell bLG-SDS complexes were formed within ∼10 ms. This involved an initial rapid process where protein and SDS formed aggregates, followed by two slower processes, where the complexes first disaggregated into single protein structures situated asymmetrically on the SDS micelles, followed by isotropic redistribution of the protein. Refolding kinetics (>100 s) were slower than unfolding (<30 s), and involved rearrangements within the mixing deadtime (∼5 ms) and transient accumulation of unfolded monomeric protein, differing in structure from the original bLG-SDS structure. Refolding of bLG involved two steps: extraction of most of the SDS from the complexes followed by protein refolding. These results reveal that surfactant-mediated unfolding and refolding of proteins are complex processes with rearrangements occurring on time scales from sub-milliseconds to minutes.
Collapse
Affiliation(s)
- Jannik Nedergaard Pedersen
- Interdisciplinary Nanoscience Center (iNANO), Department of Chemistry, Aarhus University Gustav Wieds Vej 14 DK - 8000 Aarhus C Denmark
| | - Jeppe Lyngsø
- Interdisciplinary Nanoscience Center (iNANO), Department of Chemistry, Aarhus University Gustav Wieds Vej 14 DK - 8000 Aarhus C Denmark
| | - Thomas Zinn
- ESRF - The European Synchrotron 38043 Grenoble France
| | - Daniel E Otzen
- Interdisciplinary Nanoscience Center (iNANO), Department of Molecular Biology and Genetics, Aarhus University Gustav Wieds Vej 14 DK - 8000 Aarhus C Denmark
| | - Jan Skov Pedersen
- Interdisciplinary Nanoscience Center (iNANO), Department of Chemistry, Aarhus University Gustav Wieds Vej 14 DK - 8000 Aarhus C Denmark
| |
Collapse
|
14
|
Thakur N, Sharma B, Bishnoi S, Jain S, Nayak D, Sarma TK. Biocompatible Fe3+ and Ca2+ Dual Cross-Linked G-Quadruplex Hydrogels as Effective Drug Delivery System for pH-Responsive Sustained Zero-Order Release of Doxorubicin. ACS APPLIED BIO MATERIALS 2019; 2:3300-3311. [DOI: 10.1021/acsabm.9b00334] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Neha Thakur
- Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Khandwa Road, Indore 453552, India
| | - Bhagwati Sharma
- Materials Research Centre, Malaviya National Institute of Technology Jaipur, Jaipur 302017, India
| | - Suman Bishnoi
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, Khandwa Road, Indore 453552, India
| | - Siddarth Jain
- Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Khandwa Road, Indore 453552, India
| | - Debasis Nayak
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, Khandwa Road, Indore 453552, India
| | - Tridib K. Sarma
- Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Khandwa Road, Indore 453552, India
| |
Collapse
|
15
|
Chikunov AS, Taran OP, Pyshnaya IA, Parmon VN. Colloidal Fe III , Mn III , Co III , and Cu II Hydroxides Stabilized by Starch as Catalysts of Water Oxidation Reaction with One Electron Oxidant Ru(bpy) 3 3. Chemphyschem 2019; 20:410-421. [PMID: 30520572 DOI: 10.1002/cphc.201800957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 11/26/2018] [Indexed: 11/09/2022]
Abstract
Colloidal catalysts for oxidation of water to dioxygen, which are stable on storage and under the reaction conditions, are synthesized based on CoIII , MnIII , FeIII and CuII hydroxides. Stabilization of the colloids with dextrated starch allows the process of hydroxide ageing to be stopped at the stage of the formation of primary nuclei (ca. 2-3 nm from transmission electron microscopy data). Molecular mechanics and dynamic light scattering studies indicate a core-shell type structure of the catalysts, where the hydroxide core is stabilized by the molecular starch network (ca. 5-7 nm). The colloidal catalysts are highly efficient in oxidizing water with one electron oxidant Ru(bpy)3 3+ at pH 7 to 10. The influence of pH, catalyst concentration, and buffer nature on the oxygen yield is studied. The maximal yields are 72, 53, and 78 % over Fe-, Mn- and Co-containing catalysts, respectively, and turnover numbers are 7.8; 54 and 360, respectively. The Cu-containing catalyst is poorly effective to the water oxidation (the maximal yield is 28 % O2 ). The synthesized catalysts are of interest for stopped-flow kinetic studies of the mechanism of the water oxidation and as precursors for anchoring nanosized hydroxides onto various supports in order to develop biomimetic systems for artificial photosynthesis.
Collapse
Affiliation(s)
- Andrei S Chikunov
- Boreskov Institute of Catalysis (BIC SB RAS), 630090, Novosibirsk, Lavrentieva ave. 5, Russian Federation
| | - Oxana P Taran
- Boreskov Institute of Catalysis (BIC SB RAS), 630090, Novosibirsk, Lavrentieva ave. 5, Russian Federation.,Institute of Chemistry and Chemical Technilogy SB RAS (ICCT SB RAS), 660036, Krasnoyarsk, Akademgorodok st. 50-24, Russian Federation.,Siberian Federal University, 660041, Krasnoyarsk, Svobodny ave. 79, Russian Federation
| | - Inna A Pyshnaya
- Institute of Chemical Biology and Fundamental Medicine SB RAS (ICBFM SB RAS), 630090, Novosibirsk, Lavrentieva ave. 8, Russian Federation
| | - Valentin N Parmon
- Boreskov Institute of Catalysis (BIC SB RAS), 630090, Novosibirsk, Lavrentieva ave. 5, Russian Federation
| |
Collapse
|
16
|
Dultz S, Steinke H, Mikutta R, Woche SK, Guggenberger G. Impact of organic matter types on surface charge and aggregation of goethite. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.06.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
17
|
Bligh MW, Maheshwari P, David Waite T. Formation, reactivity and aging of amorphous ferric oxides in the presence of model and membrane bioreactor derived organics. WATER RESEARCH 2017; 124:341-352. [PMID: 28780358 DOI: 10.1016/j.watres.2017.07.076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 07/29/2017] [Accepted: 07/30/2017] [Indexed: 06/07/2023]
Abstract
Iron salts are routinely dosed in wastewater treatment as a means of achieving effluent phosphorous concentration goals. The iron oxides that result from addition of iron salts partake in various reactions, including reductive dissolution and phosphate adsorption. The reactivity of these oxides is controlled by the conditions of formation and the processes, such as aggregation, that lead to a reduction in accessible surface sites following formation. The presence of organic compounds is expected to significantly impact these processes in a number of ways. In this study, amorphous ferric oxide (AFO) reactivity and aging was investigated following the addition of ferric iron (Fe(III)) to three solution systems: two synthetic buffered systems, either containing no organic or containing alginate, and a supernatant system containing soluble microbial products (SMPs) sourced from a membrane bioreactor (MBR). Reactivity of the Fe(III) phases in these systems at various times (1-60 min) following Fe(III) addition was quantified by determining the rate constants for ascorbate-mediated reductive dissolution over short (5 min) and long (60 min) dissolution periods and for a range (0.5-10 mM) of ascorbate concentrations. AFO particle size was monitored using dynamic light scattering during the aging and dissolution periods. In the presence of alginate, AFO particles appeared to be stabilized against aggregation. However, aging in the alginate system was remarkably similar to the inorganic system where aging is associated with aggregation. An aging mechanism involving restructuring within the alginate-AFO assemblage was proposed. In the presence of SMPs, a greater diversity of Fe(III) phases was evident with both a small labile pool of organically complexed Fe(III) and a polydisperse population of stabilized AFO particles present. The prevalence of low molecular weight organic molecules facilitated stabilization of the Fe(III) oxyhydroxides formed but subsequent aging observed in the alginate system did not occur. The reactivity of the Fe(III) in the supernatant system was maintained with little loss in reactivity over at least 24 h. The capacity of SMPs to maintain high reactivity of AFO has important implications in a reactor where Fe(III) phases encounter alternating redox conditions due to sludge recirculation, creating a cycle of reductive dissolution, oxidation and precipitation.
Collapse
Affiliation(s)
- Mark W Bligh
- Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Pradeep Maheshwari
- Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, 2052, Australia
| | - T David Waite
- Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, 2052, Australia.
| |
Collapse
|
18
|
Pettinger NW, Williams REA, Chen J, Kohler B. Crystallization kinetics of cerium oxide nanoparticles formed by spontaneous, room-temperature hydrolysis of cerium(iv) ammonium nitrate in light and heavy water. Phys Chem Chem Phys 2017; 19:3523-3531. [DOI: 10.1039/c6cp08227k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Ceria nanocrystals form tenfold more slowly in D2O vs. H2O, revealing a rate-determining proton transfer reaction and a non-classical crystallization mechanism.
Collapse
Affiliation(s)
| | - Robert E. A. Williams
- Center for Electron Microscopy and Analysis
- Department of Materials Science and Engineering
- Ohio State University
- Columbus
- USA
| | - Jinquan Chen
- Department of Chemistry and Biochemistry
- Montana State University
- Bozeman
- USA
| | - Bern Kohler
- Department of Chemistry and Biochemistry
- Montana State University
- Bozeman
- USA
- Department of Chemistry and Biochemistry
| |
Collapse
|
19
|
Kinsela AS, Jones AM, Bligh MW, Pham AN, Collins RN, Harrison JJ, Wilsher KL, Payne TE, Waite TD. Influence of Dissolved Silicate on Rates of Fe(II) Oxidation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:11663-11671. [PMID: 27704793 DOI: 10.1021/acs.est.6b03015] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Increasing concentrations of dissolved silicate progressively retard Fe(II) oxidation kinetics in the circum-neutral pH range 6.0-7.0. As Si:Fe molar ratios increase from 0 to 2, the primary Fe(III) oxidation product transitions from lepidocrocite to a ferrihydrite/silica-ferrihydrite composite. Empirical results, supported by chemical kinetic modeling, indicated that the decreased heterogeneous oxidation rate was not due to differences in absolute Fe(II) sorption between the two solids types or competition for adsorption sites in the presence of silicate. Rather, competitive desorption experiments suggest Fe(II) was associated with more weakly bound, outer-sphere complexes on silica-ferrihydrite compared to lepidocrocite. A reduction in extent of inner-sphere Fe(II) complexation on silica-ferrihydrite confers a decreased ability for Fe(II) to undergo surface-induced hydrolysis via electronic configuration alterations, thereby inhibiting the heterogeneous Fe(II) oxidation mechanism. Water samples from a legacy radioactive waste site (Little Forest, Australia) were shown to exhibit a similar pattern of Fe(II) oxidation retardation derived from elevated silicate concentrations. These findings have important implications for contaminant migration at this site as well as a variety of other groundwater/high silicate containing natural and engineered sites that might undergo iron redox fluctuations.
Collapse
Affiliation(s)
- Andrew S Kinsela
- School of Civil and Environmental Engineering, The University of New South Wales , Sydney, New South Wales 2052, Australia
- Institute for Environmental Research, Australian Nuclear Science and Technology Organisation , Locked Bag 2001, Kirrawee DC, New South Wales 2232, Australia
| | - Adele M Jones
- School of Civil and Environmental Engineering, The University of New South Wales , Sydney, New South Wales 2052, Australia
| | - Mark W Bligh
- School of Civil and Environmental Engineering, The University of New South Wales , Sydney, New South Wales 2052, Australia
- Institute for Environmental Research, Australian Nuclear Science and Technology Organisation , Locked Bag 2001, Kirrawee DC, New South Wales 2232, Australia
| | - An Ninh Pham
- School of Civil and Environmental Engineering, The University of New South Wales , Sydney, New South Wales 2052, Australia
| | - Richard N Collins
- School of Civil and Environmental Engineering, The University of New South Wales , Sydney, New South Wales 2052, Australia
| | - Jennifer J Harrison
- Institute for Environmental Research, Australian Nuclear Science and Technology Organisation , Locked Bag 2001, Kirrawee DC, New South Wales 2232, Australia
| | - Kerry L Wilsher
- Institute for Environmental Research, Australian Nuclear Science and Technology Organisation , Locked Bag 2001, Kirrawee DC, New South Wales 2232, Australia
| | - Timothy E Payne
- Institute for Environmental Research, Australian Nuclear Science and Technology Organisation , Locked Bag 2001, Kirrawee DC, New South Wales 2232, Australia
| | - T David Waite
- School of Civil and Environmental Engineering, The University of New South Wales , Sydney, New South Wales 2052, Australia
| |
Collapse
|
20
|
Weatherill JS, Morris K, Bots P, Stawski TM, Janssen A, Abrahamsen L, Blackham R, Shaw S. Ferrihydrite Formation: The Role of Fe13 Keggin Clusters. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:9333-42. [PMID: 27480123 DOI: 10.1021/acs.est.6b02481] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Ferrihydrite is the most common iron oxyhydroxide found in soil and is a key sequester of contaminants in the environment. Ferrihydrite formation is also a common component of many treatment processes for cleanup of industrial effluents. Here we characterize ferrihydrite formation during the titration of an acidic ferric nitrate solution with NaOH. In situ SAXS measurements supported by ex situ TEM indicate that initially Fe13 Keggin clusters (radius ∼ 0.45 nm) form in solution at pH 0.12-1.5 and are persistent for at least 18 days. The Fe13 clusters begin to aggregate above ∼ pH 1, initially forming highly linear structures. Above pH ∼ 2 densification of the aggregates occurs in conjunction with precipitation of low molecular weight Fe(III) species (e.g., monomers, dimers) to form mass fractal aggregates of ferrihydrite nanoparticles (∼3 nm) in which the Fe13 Keggin motif is preserved. SAXS analysis indicates the ferrihydrite particles have a core-shell structure consisting of a Keggin center surrounded by a Fe-depleted shell, supporting the surface depleted model of ferrihydrite. Overall, we present the first direct evidence for the role of Fe13 clusters in the pathway of ferrihydrite formation during base hydrolysis, showing clear structural continuity from isolated Fe13 Keggins to the ferrihydrite particle structure. The results have direct relevance to the fundamental understanding of ferrihydrite formation in environmental, engineered, and industrial processes.
Collapse
Affiliation(s)
| | | | | | - Tomasz M Stawski
- School of Earth and Environment, University of Leeds , Leeds LS2 9JT, U.K
- German Research Centre for Geosciences, GFZ , 14473 Potsdam, Germany
| | | | - Liam Abrahamsen
- National Nuclear Laboratory, Chadwick House, Warrington Road, Birchwood Park, Warrington WA3 6AE, U.K
| | - Richard Blackham
- Sellafield Ltd., Hinton House, Birchwood Park Avenue, Risley, Warrington, Cheshire WA3 6GR, U.K
| | | |
Collapse
|
21
|
Scheck J, Wu B, Drechsler M, Rosenberg R, Van Driessche AES, Stawski TM, Gebauer D. The Molecular Mechanism of Iron(III) Oxide Nucleation. J Phys Chem Lett 2016; 7:3123-3130. [PMID: 27466739 DOI: 10.1021/acs.jpclett.6b01237] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A molecular understanding of the formation of solid phases from solution would be beneficial for various scientific fields. However, nucleation pathways are still not fully understood, whereby the case of iron (oxyhydr)oxides poses a prime example. We show that in the prenucleation regime, thermodynamically stable solute species up to a few nanometers in size are observed, which meet the definition of prenucleation clusters. Nucleation then is not governed by a critical size, but rather by the dynamics of the clusters that are forming at the distinct nucleation stages, based on the chemistry of the linkages within the clusters. This resolves a longstanding debate in the field of iron oxide nucleation, and the results may generally apply to oxides forming via hydrolysis and condensation. The (molecular) understanding of the chemical basis of phase separation is paramount for, e.g., tailoring size, shape and structure of novel nanocrystalline materials.
Collapse
Affiliation(s)
- Johanna Scheck
- Department of Chemistry, Physical Chemistry, University of Konstanz , Universitätsstraße 10, D-78457 Konstanz, Germany
| | - Baohu Wu
- Department of Chemistry, Physical Chemistry, University of Konstanz , Universitätsstraße 10, D-78457 Konstanz, Germany
- Jülich Centre for Neutron Science, Outstation at the MLZ, Forschungszentrum Jülich, Lichtenbergstraße 1, D-85748 Garching, Germany
| | - Markus Drechsler
- Laboratory for Soft Matter Electron Microscopy, BIMF; University of Bayreuth , Universitätsstraße 30, D-95440 Bayreuth, Germany
| | - Rose Rosenberg
- Department of Chemistry, Physical Chemistry, University of Konstanz , Universitätsstraße 10, D-78457 Konstanz, Germany
| | | | - Tomasz M Stawski
- Cohen Geochemistry, School of Earth and Environment, University of Leeds , LS2 9JT, Leeds, U.K
- German Research Centre for Geosciences, GFZ, 14473, Potsdam, Germany
| | - Denis Gebauer
- Department of Chemistry, Physical Chemistry, University of Konstanz , Universitätsstraße 10, D-78457 Konstanz, Germany
| |
Collapse
|
22
|
Dai C, Hu Y. Fe(III) hydroxide nucleation and growth on quartz in the presence of Cu(II), Pb(II), and Cr(III): metal hydrolysis and adsorption. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:292-300. [PMID: 25496643 DOI: 10.1021/es504140k] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Fe(III) hydroxide nanoparticles are an essential carrier for aqueous heavy metals. Particularly, iron hydroxide precipitation on mineral surfaces can immobilize aqueous heavy metals. Here, we used grazing-incidence small-angle X-ray scattering (GISAXS) to quantify nucleation and growth of iron hydroxide on quartz in 0.1 mM Fe(NO3)3 solution in the presence of Na(+), Cu(2+), Pb(2+), or Cr(3+) at pH = 3.7 ± 0.1. In 30 min, the average radii of gyration (R(g)) of particles on quartz grew from around 2 to 6 nm in the presence of Na(+) and Cu(2+). Interestingly, the particle sizes remained 3.3 ± 0.3 nm in the presence of Pb(2+), and few particles formed in the presence of Cr(3+). Quartz crystal microbalance dissipation (QCM-D) measurements showed that only Cr(3+) adsorbed onto quartz, while Cu(2+) and Pb(2+) did not. Cr(3+) adsorption changed the surface charge of quartz from negative to positive, thus inhibiting the precipitation of positively charged iron hydroxide on quartz. Masses and compositions of the precipitates were also quantified. This study provided new insights on interactions among quartz, iron hydroxide, and metal ions. Such information is helpful not only for environmental remediation but also for the doping design of iron oxide catalysts.
Collapse
Affiliation(s)
- Chong Dai
- Department of Civil & Environmental Engineering, University of Houston , Houston, Texas 77004, United States
| | | |
Collapse
|
23
|
Bots P, Morris K, Hibberd R, Law GTW, Mosselmans JFW, Brown AP, Doutch J, Smith AJ, Shaw S. Formation of stable uranium(VI) colloidal nanoparticles in conditions relevant to radioactive waste disposal. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:14396-405. [PMID: 25418066 DOI: 10.1021/la502832j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The favored pathway for disposal of higher activity radioactive wastes is via deep geological disposal. Many geological disposal facility designs include cement in their engineering design. Over the long term, interaction of groundwater with the cement and waste will form a plume of a hyperalkaline leachate (pH 10-13), and the behavior of radionuclides needs to be constrained under these extreme conditions to minimize the environmental hazard from the wastes. For uranium, a key component of many radioactive wastes, thermodynamic modeling predicts that, at high pH, U(VI) solubility will be very low (nM or lower) and controlled by equilibrium with solid phase alkali and alkaline-earth uranates. However, the formation of U(VI) colloids could potentially enhance the mobility of U(VI) under these conditions, and characterizing the potential for formation and medium-term stability of U(VI) colloids is important in underpinning our understanding of U behavior in waste disposal. Reflecting this, we applied conventional geochemical and microscopy techniques combined with synchrotron based in situ and ex situ X-ray techniques (small-angle X-ray scattering and X-ray adsorption spectroscopy (XAS)) to characterize colloidal U(VI) nanoparticles in a synthetic cement leachate (pH > 13) containing 4.2-252 μM U(VI). The results show that in cement leachates with 42 μM U(VI), colloids formed within hours and remained stable for several years. The colloids consisted of 1.5-1.8 nm nanoparticles with a proportion forming 20-60 nm aggregates. Using XAS and electron microscopy, we were able to determine that the colloidal nanoparticles had a clarkeite (sodium-uranate)-type crystallographic structure. The presented results have clear and hitherto unrecognized implications for the mobility of U(VI) in cementitious environments, in particular those associated with the geological disposal of nuclear waste.
Collapse
Affiliation(s)
- Pieter Bots
- Research Centre for Radwaste & Disposal, and Williamson Research Centre, School of Earth, Atmospheric and Environmental Sciences, Faculty of Engineering and Physical Sciences, The University of Manchester , Manchester M13 9PL, U.K
| | | | | | | | | | | | | | | | | |
Collapse
|