201
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Alxneit I. Particle Size Distributions from Electron Microscopy Images: Avoiding Pitfalls. J Phys Chem A 2020; 124:10075-10081. [PMID: 33203210 DOI: 10.1021/acs.jpca.0c07840] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
An important property of heterogeneous catalysts is the size distribution of the catalytically active phase. This is typically obtained form a long list of particles sizes (manually) compiled from electron micrographs. These raw data are then represented as histogram to approximate the underlying continuous distribution. Selecting the proper bin width, w, for the histogram is important as one has to balance resolution with statistical significance of the bin count in each bin. For most published particle size distributions, the selection criterion for w is not reported transparently. In this contribution, it is demonstrated how operator's bias can be avoided by using estimators for w that are based on the raw data only. First, synthetic data are analyzed to illustrate the importance of selecting a proper value for w. Then a survey of published data is presented which reveals that the values for the bin width w was chosen too large in many cases. By using statistically founded bin width estimators not only is operator's bias avoided but also hidden features in the distribution are sometimes revealed; in one case, a distinct bimodal distribution was missed in the original report. Finally, a work-flow is suggested which avoids operator's bias to generate particles size distributions from a list of experimentally determined particle sizes.
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Affiliation(s)
- Ivo Alxneit
- Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
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202
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Quinson J, Jensen KM. From platinum atoms in molecules to colloidal nanoparticles: A review on reduction, nucleation and growth mechanisms. Adv Colloid Interface Sci 2020; 286:102300. [PMID: 33166723 DOI: 10.1016/j.cis.2020.102300] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/25/2020] [Accepted: 10/26/2020] [Indexed: 12/24/2022]
Abstract
Platinum (Pt) is one of the most studied materials in catalysis today and considered for a wide range of applications: chemical synthesis, energy conversion, air treatment, water purification, sensing, medicine etc. As a limited and non-renewable resource, optimized used of Pt is key. Nanomaterial design offers multiple opportunities to make the most of Pt resources down to the atomic scale. In particular, colloidal syntheses of Pt nanoparticles are well documented and simple to implement, which accounts for the large interest in research and development. For further breakthroughs in the design of Pt nanomaterials, a deeper understanding of the intricate synthesis-structures-properties relations of Pt nanoparticles must be obtained. Understanding how Pt nanoparticles form from molecular precursors is both a challenging and rewarding area of investigation. It is directly relevant to develop improved Pt nanomaterials but is also a source of inspiration to design other precious metal nanostructures. Here, we review the current understanding of Pt nanoparticle formation. This review is aimed at readers with interest in Pt nanoparticles in general and their colloidal syntheses in particular. Readers with a strongest interest on the study of nanomaterial formation will find here the case study of Pt. The preferred model systems and characterization techniques used to perform the study of Pt nanoparticle syntheses are discussed. In light of recent achievements, further direction and areas of research are proposed.
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203
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Guyon L, Groo AC, Malzert-Fréon A. Relevant Physicochemical Methods to Functionalize, Purify, and Characterize Surface-Decorated Lipid-Based Nanocarriers. Mol Pharm 2020; 18:44-64. [PMID: 33244972 DOI: 10.1021/acs.molpharmaceut.0c00857] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Surface functionalization of lipid-based nanocarriers (LBNCs) with targeting ligands has attracted huge interest in the field of nanomedicines for their ability to overcome some physiological barriers and their potential to deliver an active molecule to a specific target without causing damage to healthy tissues. The principal objective of this review is to summarize the present knowledge on LBNC decoration used for biomedical applications, with an emphasis on the ligands used, the functionalization approaches, and the purification methods after ligand corona formation. The most potent experimental techniques for the LBNC surface characterization are described. The potential of promising methods such as nuclear magnetic resonance spectroscopy and isothermal titration calorimetry to characterize ligand surface corona is also outlined.
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Affiliation(s)
- Léna Guyon
- CERMN, UNICAEN Université de Caen Normandie, F-14000 Caen, France
| | - Anne-Claire Groo
- CERMN, UNICAEN Université de Caen Normandie, F-14000 Caen, France
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204
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Insights into the multi-scale structure and in vitro digestibility changes of rice starch-oleic acid/linoleic acid complex induced by heat-moisture treatment. Food Res Int 2020; 137:109612. [DOI: 10.1016/j.foodres.2020.109612] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 07/22/2020] [Accepted: 08/01/2020] [Indexed: 02/07/2023]
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205
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Myalo Z, Ikpo CO, Nwanya AC, Ndipingwi MM, Duoman SF, Mokwebo KV, Iwuoha EI. Graphenised Lithium Iron Phosphate and Lithium Manganese Silicate Hybrid Cathodes: Potentials for Application in Lithium‐ion Batteries. ELECTROANAL 2020. [DOI: 10.1002/elan.202060435] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zolani Myalo
- SensorLab University of the Western Cape Sensor Laboratories) Robert Sobukwe Road, Bellville 7535 Cape Town South Africa
| | - Chinwe Oluchi Ikpo
- SensorLab University of the Western Cape Sensor Laboratories) Robert Sobukwe Road, Bellville 7535 Cape Town South Africa
| | - Assumpta Chinwe Nwanya
- SensorLab University of the Western Cape Sensor Laboratories) Robert Sobukwe Road, Bellville 7535 Cape Town South Africa
- Department of Physics and Astronomy University of Nigeria Nsukka Nigeria
| | - Miranda Mengwi Ndipingwi
- SensorLab University of the Western Cape Sensor Laboratories) Robert Sobukwe Road, Bellville 7535 Cape Town South Africa
| | - Samantha Fiona Duoman
- SensorLab University of the Western Cape Sensor Laboratories) Robert Sobukwe Road, Bellville 7535 Cape Town South Africa
| | - Kefilwe Vanessa Mokwebo
- SensorLab University of the Western Cape Sensor Laboratories) Robert Sobukwe Road, Bellville 7535 Cape Town South Africa
| | - Emmanuel Iheanyichukwu Iwuoha
- SensorLab University of the Western Cape Sensor Laboratories) Robert Sobukwe Road, Bellville 7535 Cape Town South Africa
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206
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Deng K, Huang X, Liu Y, Xu L, Li R, Tang J, Lei QL, Ni R, Li C, Zhao YS, Xu H, Wang Z, Quan Z. Supercrystallographic Reconstruction of 3D Nanorod Assembly with Collectively Anisotropic Upconversion Fluorescence. NANO LETTERS 2020; 20:7367-7374. [PMID: 32857525 DOI: 10.1021/acs.nanolett.0c02779] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Constructing three-dimensional (3D) metamaterials from functional nanoparticles endows them with emerging collective properties tailored by the packing geometries. Herein, we report 3D supercrystals self-assembled from upconversion nanorods (NaYF4:Yb,Er NRs), which exhibit both translational ordering of NRs and orientational ordering between constituent NRs in the superlattice (SL). The construction of 3D reciprocal space mappings (RSMs) based on synchrotron-based X-ray scattering measurements was developed to uncover the complex structure of such an assembly. That is, the two main orthogonal sets of hexagonal close-packing (hcp)-like SLs share the [110]SL axis, and NRs within the SL possess orientational relationships of [120]NR//[100]SL, [210]NR//[010]SL, and [001]NR//[001]SL. Notably, these supercrystals containing well-aligned NRs exhibit collectively anisotropic upconversion fluorescence in two perpendicular directions. This study not only demonstrates novel crystalline superstructures and functionality of NR-based 3D assemblies but also offers a unique tool for deciphering a wide range of complex nanoparticle supercrystals.
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Affiliation(s)
- Kerong Deng
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China
| | - Xin Huang
- Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, United States
| | - Yulian Liu
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China
| | - Lili Xu
- Institute of Molecular Sciences and Engineering, Shandong University, Qingdao 266237, China
| | - Ruipeng Li
- Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, United States
| | - Ji Tang
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Qun-Li Lei
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore
| | - Ran Ni
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore
| | - Chunxia Li
- Institute of Molecular Sciences and Engineering, Shandong University, Qingdao 266237, China
| | - Yong Sheng Zhao
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Hongwu Xu
- Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Zhongwu Wang
- Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, United States
| | - Zewei Quan
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China
- Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
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207
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Septani CM, Wang CA, Jeng US, Su YC, Ko BT, Sun YS. Hierarchically Porous Carbon Materials from Self-Assembled Block Copolymer/Dopamine Mixtures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:11754-11764. [PMID: 32955261 DOI: 10.1021/acs.langmuir.0c01431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hierarchically porous carbon materials with interconnected frameworks of macro- and mesopores are desirable for electrochemical applications in biosensors, electrocatalysis, and supercapacitors. In this study, we report a facile synthetic route to fabricate hierarchically porous carbon materials by controlled macro- and mesophase separation of a mixture of polystyrene-block-poly(ethylene) and dopamine. The morphology of mesopores is tailored by controlling the coassembly of PS-b-PEO and dopamine in the acidic tetrahydrofuran-water cosolvent. HCl addition plays a critical role via enhancing the charge-dipole interactions between PEO and dopamine and suppressing the clustering and chemical reactions of dopamine in solution. As a result, subsequent drying can produce interpenetrated PS-b-PEO/DA mixtures without forming dopamine microsized crystallites. Dopamine oxidative polymerization induced by solvent annealing in NH4OH vapor enables the formation of percolating macropores. Subsequent pyrolysis to selectively remove the PS-b-PEO template from the complex can produce hierarchically porous carbon materials with interconnected frameworks of macro- and mesopores when pyrolysis is implemented at a low temperature or when DA is a minor component.
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Affiliation(s)
- Cindy M Septani
- Department of Chemical and Materials Engineering, National Central University, 300 Zhongda Road, Zhongli District, Taoyuan City 32001, Taiwan
| | - Chen-An Wang
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 30076, Taiwan
| | - U-Ser Jeng
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 30076, Taiwan
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yu-Chia Su
- Department of Chemistry, National Chung Hsing University, 145 Xingda Road, South District, Taichung City 402, Taiwan
| | - Bao-Tsan Ko
- Department of Chemistry, National Chung Hsing University, 145 Xingda Road, South District, Taichung City 402, Taiwan
| | - Ya-Sen Sun
- Department of Chemical and Materials Engineering, National Central University, 300 Zhongda Road, Zhongli District, Taoyuan City 32001, Taiwan
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208
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Zheng J, Tang CH, Sun W. Heteroprotein complex coacervation: Focus on experimental strategies to investigate structure formation as a function of intrinsic and external physicochemical parameters for food applications. Adv Colloid Interface Sci 2020; 284:102268. [PMID: 32977143 DOI: 10.1016/j.cis.2020.102268] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/07/2020] [Accepted: 09/09/2020] [Indexed: 12/14/2022]
Abstract
Proteins are important components of foods, because they are one of the essential food groups, they have many functional properties that are very useful for modifying the physicochemical and textural properties of processed foods and possess many biological activities that are beneficial to human health. The process of heteroprotein complex coacervation (HPCC) combines two or more proteins through long-range coulombic interaction and specific short-range forces, creating a liquid-liquid colloid, with highly concentrated protein in the droplet phase and much more diluted-protein in the bulk phase. Coacervates possess novel, modifiable, physicochemical characteristics, and often exhibit the combined biological activities of the protein components, which makes them applicable to formulated foods and encapsulation carriers. This review discusses research progress in the field of HPCC in three parts: (1) the basic and innovative experimental methods and simulation tools for understanding the physicochemical behavior of these heteroprotein supramolecular architectures; (2) the influence of environmental factors (pH, mixing ratio, salts, temperature, and formation time) and intrinsic factors (protein modifications, metal-binding, charge anisotropy, and polypeptide designs) on HPCC; (3) the potential applications of HPCC materials, such as encapsulation of nutraceuticals, nanogels, emulsion stabilization, and protein separation. The wide diversity of possible combinations of proteins with different properties, endows HPCC materials with great potential for development into highly-innovation functional food ingredients.
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Affiliation(s)
- Jiabao Zheng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Chuan-He Tang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou 510641, China
| | - Weizheng Sun
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou 510641, China.
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209
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Thompson M. Generalizing small-angle scattering form factors with linear transformations. J Appl Crystallogr 2020. [DOI: 10.1107/s1600576720010389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Nanostructure characterization using small-angle scattering is often performed by iteratively fitting a scattering model to experimental data. These scattering models are usually derived in part from the form factors of the expected shapes of the particles. Most small-angle-scattering pattern-fitting software is well equipped with form factor libraries for high-symmetry models, yet there is more limited support for distortions to these ideals that are more typically found in nature. Here, a means of generalizing high-symmetry form factors to these lower-symmetry cases via linear transformations is introduced, significantly expanding the range of form factors available to researchers. These linear transformations are composed of a series of scaling, shear, rotation and inversion operations, enabling particle distortions to be understood in a straightforward and intuitive way. This approach is expected to be especially useful for in situ studies of nanostructure growth where anisotropic structures change continuously and large data sets must be analysed.
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210
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Li M, Zheng Z, Yin P. Small-angle X-ray scattering studies of emergent polyoxometalates in solution. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1830973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Mu Li
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, China
| | - Zhao Zheng
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, China
| | - Panchao Yin
- South China Advanced Institute for Soft Matter Science and Technology & State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, China
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211
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Preparation of nano-sized Mg-doped copper silicate materials using coal gangue as the raw material and its characterization for CO2 adsorption. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-020-0593-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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212
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Maia RA, Carneiro LSDA, Cifuentes JMC, Buarque CD, Esteves PM, Percebom AM. Small-angle X-ray scattering as a multifaceted tool for structural characterization of covalent organic frameworks. J Appl Crystallogr 2020. [DOI: 10.1107/s1600576720011553] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Small-angle X-ray scattering (SAXS) is an accurate nondestructive method that requires a minimum of sample preparation and is employed to study porosity, morphology and hierarchical structures. Zeolites and silica are among the porous materials that are widely investigated by SAXS. However, studies of covalent organic frameworks (COFs) are still scarce. In the present study, SAXS was employed to investigate meso- and microporous COFs, affording insightful information about their nanostructure textural properties. SAXS is especially useful when combined with other characterization techniques, such as powder X-ray diffraction and N2 adsorption isotherms, emerging as an efficient tool to further characterize COFs. For microporous COFs, SAXS was used mainly to obtain quantitative values of surface roughness as a function of fractal parameters, in all cases indicating surface fractals of the large-scale scattering object, namely the `grain'. Mesoporous COF studies allowed elucidation of their hexagonal structure on the basis of their structure peaks; however, the main result lies in the distinction between the pore and the grain, which are described as a hierarchical structure by the Beaucage model and evaluated according to their fractality. These COFs generally exhibit pores with mass fractal features and grains with surface fractal features when they are submitted to post-functionalization, which may be due to the poor diffusivity of the functionalizing agents into the pores. In addition, a proposed aggregation description of the porous scattering objects was envisioned, based on small-angle scattering premises, which was confirmed for a microporous COF by high-resolution transmission electron microscopy.
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213
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Yuan D, Awais MA, Sharapov V, Liu X, Neshchadin A, Chen W, Bera M, Yu L. Foldable semi-ladder polymers: novel aggregation behavior and high-performance solution-processed organic light-emitting transistors. Chem Sci 2020; 11:11315-11321. [PMID: 34094373 PMCID: PMC8162540 DOI: 10.1039/d0sc04068a] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A critical issue in developing high-performance organic light-emitting transistors (OLETs) is to balance the trade-off between charge transport and light emission in a semiconducting material. Although traditional materials for organic light-emitting diodes (OLEDs) or organic field-effect transistors (OFETs) have shown modest performance in OLET devices, design strategies towards high-performance OLET materials and the crucial structure–performance relationship remain unclear. Our research effort in developing cross-conjugated weak acceptor-weak donor copolymers for luminescent properties lead us to an unintentional discovery that these copolymers form coiled foldamers with intramolecular H-aggregation, leading to their exceptional OLET properties. An impressive external quantum efficiency (EQE) of 6.9% in solution-processed multi-layer OLET devices was achieved. Coiled foldamers with intramolecular H-aggregation in semi-ladder copolymers lead towards the highest EQE of 6.9% in solution-processed multi-layer OLETs.![]()
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Affiliation(s)
- Dafei Yuan
- Department of Chemistry, The James Franck Institute, The University of Chicago 929 E 57th Street Chicago Illinois 60601 USA
| | - Mohammad A Awais
- Department of Chemistry, The James Franck Institute, The University of Chicago 929 E 57th Street Chicago Illinois 60601 USA
| | - Valerii Sharapov
- Department of Chemistry, The James Franck Institute, The University of Chicago 929 E 57th Street Chicago Illinois 60601 USA
| | - Xunshan Liu
- Department of Chemistry, The James Franck Institute, The University of Chicago 929 E 57th Street Chicago Illinois 60601 USA
| | - Andriy Neshchadin
- Department of Chemistry, The James Franck Institute, The University of Chicago 929 E 57th Street Chicago Illinois 60601 USA
| | - Wei Chen
- Materials Science Division, Argonne National Laboratory 9700 Cass Avenue Lemont Illinois 60439 USA
| | - Mrinal Bera
- NSF's ChemMatCARS, The University of Chicago Chicago Illinois 60637 USA
| | - Luping Yu
- Department of Chemistry, The James Franck Institute, The University of Chicago 929 E 57th Street Chicago Illinois 60601 USA
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214
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Particle engineering enabled by polyphenol-mediated supramolecular networks. Nat Commun 2020; 11:4804. [PMID: 32968077 PMCID: PMC7511334 DOI: 10.1038/s41467-020-18589-0] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/27/2020] [Indexed: 12/17/2022] Open
Abstract
We report a facile strategy for engineering diverse particles based on the supramolecular assembly of natural polyphenols and a self-polymerizable aromatic dithiol. In aqueous conditions, uniform and size-tunable supramolecular particles are assembled through π–π interactions as mediated by polyphenols. Owing to the high binding affinity of phenolic motifs present at the surface, these particles allow for the subsequent deposition of various materials (i.e., organic, inorganic, and hybrid components), producing a variety of monodisperse functional particles. Moreover, the solvent-dependent disassembly of the supramolecular networks enables their removal, generating a wide range of corresponding hollow structures including capsules and yolk–shell structures. The versatility of these supramolecular networks, combined with their negligible cytotoxicity provides a pathway for the rational design of a range of particle systems (including core–shell, hollow, and yolk–shell) with potential in biomedical and environmental applications. Monodisperse colloidal particles with tunable properties show promise for biomedical, energy, and environmental applications and simple routes for fabricating these particles are of interest. Here, the authors report a facile strategy for fabrication of diverse particles based on the supramolecular assembly of phenols and self-polymerizable thiols
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215
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Guan Q, Wang GB, Zhou LL, Li WY, Dong YB. Nanoscale covalent organic frameworks as theranostic platforms for oncotherapy: synthesis, functionalization, and applications. NANOSCALE ADVANCES 2020; 2:3656-3733. [PMID: 36132748 PMCID: PMC9419729 DOI: 10.1039/d0na00537a] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 07/15/2020] [Indexed: 05/08/2023]
Abstract
Cancer nanomedicine is one of the most promising domains that has emerged in the continuing search for cancer diagnosis and treatment. The rapid development of nanomaterials and nanotechnology provide a vast array of materials for use in cancer nanomedicine. Among the various nanomaterials, covalent organic frameworks (COFs) are becoming an attractive class of upstarts owing to their high crystallinity, structural regularity, inherent porosity, extensive functionality, design flexibility, and good biocompatibility. In this comprehensive review, recent developments and key achievements of COFs are provided, including their structural design, synthesis methods, nanocrystallization, and functionalization strategies. Subsequently, a systematic overview of the potential oncotherapy applications achieved till date in the fast-growing field of COFs is provided with the aim to inspire further contributions and developments to this nascent but promising field. Finally, development opportunities, critical challenges, and some personal perspectives for COF-based cancer therapeutics are presented.
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Affiliation(s)
- Qun Guan
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University Jinan 250014 P. R. China
| | - Guang-Bo Wang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University Jinan 250014 P. R. China
| | - Le-Le Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University Jinan 250014 P. R. China
| | - Wen-Yan Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University Jinan 250014 P. R. China
| | - Yu-Bin Dong
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University Jinan 250014 P. R. China
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216
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Le Goas M, Testard F, Taché O, Debou N, Cambien B, Carrot G, Renault JP. How Do Surface Properties of Nanoparticles Influence Their Diffusion in the Extracellular Matrix? A Model Study in Matrigel Using Polymer-Grafted Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:10460-10470. [PMID: 32787032 DOI: 10.1021/acs.langmuir.0c01624] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Diffusion of nanomedicines inside the extracellular matrix (ECM) has been identified as a key factor to achieve homogeneous distribution and therefore therapeutic efficacy. Here, we sought to determine the impact of nanoparticles' (NPs) surface properties on their ability to diffuse in the ECM. As model nano-objects, we used a library of gold nanoparticles grafted with a versatile polymethacrylate corona, which enabled the surface properties to be modified. To accurately recreate the features of the native ECM, diffusion studies were carried out in a tumor-derived gel (Matrigel). We developed two methods to evaluate the diffusion ability of NPs inside this model gel: an easy-to-implement one based on optical monitoring and another one using small-angle X-ray scattering (SAXS) measurements. Both enabled the determination of the diffusion coefficients of NPs and comparison of the influence of their various surface properties, while the SAXS technique also allowed to monitor the NPs' structure as they diffused inside the gel. Positive charges and hydrophobicity were found to particularly hinder diffusion, and the different results suggested on the whole the presence of NPs-matrix interactions, therefore underlying the importance of the ECM model. The accuracy of the tumor-derived gels used in this study was evidenced by in vivo experiments involving intratumoral injections of NPs on mice, which showed that diffusion patterns in the peripheral tumor tissues were quite similar to the ones obtained within the chosen ECM model.
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Affiliation(s)
- Marine Le Goas
- NIMBE, CEA, CNRS UMR 3685, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
| | - Fabienne Testard
- NIMBE, CEA, CNRS UMR 3685, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
| | - Olivier Taché
- NIMBE, CEA, CNRS UMR 3685, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
| | - Nabila Debou
- NIMBE, CEA, CNRS UMR 3685, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
| | - Béatrice Cambien
- Laboratoire TIRO, UMRE 4320, Université Côte d'Azur, CEA, 06107 Nice Cedex, France
| | - Geraldine Carrot
- NIMBE, CEA, CNRS UMR 3685, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
| | - Jean-Philippe Renault
- NIMBE, CEA, CNRS UMR 3685, Université Paris-Saclay, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France
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217
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Totea AM, Dorin I, Laity PR, Sabin J, Conway BR, Waters L, Asare-Addo K. A molecular understanding of magnesium aluminium silicate - drug, drug - polymer, magnesium aluminium silicate - polymer nanocomposite complex interactions in modulating drug release: Towards zero order release. Eur J Pharm Biopharm 2020; 154:270-282. [PMID: 32717386 DOI: 10.1016/j.ejpb.2020.07.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/06/2020] [Accepted: 07/22/2020] [Indexed: 10/23/2022]
Abstract
This study reports the use of ITC in understanding the thermodynamics occurring for a controlled release system in which complexation has been exploited. In this study, a model drug, propranolol hydrochloride (PPN) was complexed with magnesium aluminium silicate (MAS) and these complexes were used in combination with polyethylene oxide (PEO) as a hydrophilic carrier at various concentrations to sustain the release of PPN. DSC, XRPD, ATR-FTIR and SEM/EDX were successfully used in characterising the produced complexes. 2D- SAXS data patterns for MAS and the produced complexes were shown to be symmetric and circular with the particles showing no preferred orientation at the nanometre scale. ITC studies showed differences between PPN adsorption onto MAS compared with PPN adsorption onto a MAS-PEO mixture. At both temperatures studied the binding affinity Ka was greater for the titration of PPN into the MAS-PEO mixture (5.37E + 04 ± 7.54E + 03 M at 25 °C and 8.63E + 04 ± 6.11E + 03 M at 37 °C), compared to the affinity obtained upon binding between PPN and MAS as previously reported suggesting a stronger binding with implications for the dissolution process. MAS-PPN complexes with the PEO polymer compacts displayed desired manufacturing and formulation properties for a formulator including, reduced plastic recovery therefore potentially reducing the risk of cracking/splitting and on tooling wear, controlled release of PPN at a significantly low (5%) polymer level as well as a zero-order release profile (case II transport) using up to 50% polymer level.
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Affiliation(s)
- A M Totea
- School of Applied Sciences, Department of Pharmacy, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, UK
| | - I Dorin
- Biomolecular Formulation and Characterization Sciences, UCB, Slough SL3WE, UK
| | - P R Laity
- Department of Materials Science and Engineering, University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield S1 3JD, UK
| | - Juan Sabin
- AFFINImeter, Edificio Emprendia, Campus Vida, Santiago de Compostela, Spain
| | - B R Conway
- School of Applied Sciences, Department of Pharmacy, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, UK
| | - L Waters
- School of Applied Sciences, Department of Pharmacy, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, UK
| | - K Asare-Addo
- School of Applied Sciences, Department of Pharmacy, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, UK.
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218
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Green synthesis, characteristics and antimicrobial activity of silver nanoparticles mediated by essential oils as reducing agents. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101746] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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219
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Krzysko AJ, Nakouzi E, Zhang X, Graham TR, Rosso KM, Schenter GK, Ilavsky J, Kuzmenko I, Frith MG, Ivory CF, Clark SB, Weston JS, Weigandt KM, De Yoreo JJ, Chun J, Anovitz LM. Correlating inter-particle forces and particle shape to shear-induced aggregation/fragmentation and rheology for dilute anisotropic particle suspensions: A complementary study via capillary rheometry and in-situ small and ultra-small angle X-ray scattering. J Colloid Interface Sci 2020; 576:47-58. [DOI: 10.1016/j.jcis.2020.04.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/03/2020] [Accepted: 04/03/2020] [Indexed: 11/28/2022]
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220
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Özkan E, Badaczewski F, Cop P, Werner S, Hofmann A, Votsmeier M, Amenitsch H, Smarsly BM. Peering into the Formation of Cerium Oxide Colloidal Particles in Solution by In Situ Small-Angle X-ray Scattering. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:9175-9190. [PMID: 32659089 DOI: 10.1021/acs.langmuir.0c01463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The formation of CeO2 colloidal particles upon heating an aqueous solution of (NH4)2Ce(NO3)6 to 100 °C was investigated by time-resolved in situ SAXS analysis using synchrotron radiation, providing absolute intensity data. In particular, the experiments were performed by applying different temperatures between room temperature and 100 °C as well as under variation of the ionic strength and concentration. Using validated SAXS evaluation tools (SASfit and McSAS software), the analyses revealed the presence of two types of particle populations possessing average dimensions of ca. 2 nm and 5-15 nm, with the latter being agglomerates of the 2 nm particles rather than single crystallites. The analysis revealed not only the changes in the size, but also the relative volume fractions of these two CeO2 particle populations as a function of the aforementioned parameters. Increasing the temperature increases the number of the 5-15 nm agglomerates on one hand by the enhanced nucleation rate of the primary particles. On the other hand, especially at high temperatures (90 and 100 °C) the larger agglomerate particles precipitate, resulting in interesting trends in the fractions of the two populations as a function of time, temperature, ionic strength, and precursor concentration. The experimental studies are complemented by calculating colloidal interaction energies based on classical DLVO theory. Thereby, this study provides detailed insight into the nucleation, growth, and agglomeration of CeO2 nanoparticles. The primary objective of this study is to provide a better understanding of the nucleation and growth of particles by the hydrolysis of the tetravalent cerium ion in aqueous solutions.
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Affiliation(s)
- Elifkübra Özkan
- Institute of Physical Chemistry, Justus-Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
- Umicore AG & Co. KG, Rodenbacher Chaussee 4, 63457 Hanau, Germany
| | - Felix Badaczewski
- Institute of Physical Chemistry, Justus-Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
- Center for Materials Research (LaMa), Justus-Liebig University, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
| | - Pascal Cop
- Institute of Physical Chemistry, Justus-Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Sebastian Werner
- Institute of Physical Chemistry, Justus-Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | | | - Martin Votsmeier
- Umicore AG & Co. KG, Rodenbacher Chaussee 4, 63457 Hanau, Germany
- Technical University Darmstadt, 64287 Darmstadt, Germany
| | - Heinz Amenitsch
- Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Bernd M Smarsly
- Institute of Physical Chemistry, Justus-Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
- Center for Materials Research (LaMa), Justus-Liebig University, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
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221
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Valencia L, Nomena EM, Monti S, Rosas-Arbelaez W, Mathew AP, Kumar S, Velikov KP. Multivalent ion-induced re-entrant transition of carboxylated cellulose nanofibrils and its influence on nanomaterials' properties. NANOSCALE 2020; 12:15652-15662. [PMID: 32496493 DOI: 10.1039/d0nr02888f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work, we identify and characterize a new intriguing capability of carboxylated cellulose nanofibrils that could be exploited to design smart nanomaterials with tuned response properties for specific applications. Cellulose nanofibrils undergo a multivalent counter-ion induced re-entrant behavior at a specific multivalent metal salt concentration. This effect is manifested as an abrupt increase in the strength of the hydrogel that returns upon a further increment of salt concentration. We systematically study this phenomenon using dynamic light scattering, small-angle X-ray scattering, and molecular dynamics simulations based on a reactive force field. We find that the transitions in the nanofibril microstructure are mainly because of the perturbing actions of multivalent metal ions that induce conformational changes of the nanocellulosic chains and thus new packing arrangements. These new aggregation states also cause changes in the thermal and mechanical properties as well as wettability of the resulting films, upon water evaporation. Our results provide guidelines for the fabrication of cellulose-based films with variable properties by the simple addition of multivalent ions.
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Affiliation(s)
- Luis Valencia
- Division of Materials and Environmental Chemistry, Stockholm University, Frescativägen 8, 10691, Stockholm, Sweden.
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222
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Size characterization of core-corona spherical particles using model-free inverse Fourier transform method. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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223
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Takahara A, Higaki Y, Hirai T, Ishige R. Application of Synchrotron Radiation X-ray Scattering and Spectroscopy to Soft Matter. Polymers (Basel) 2020; 12:polym12071624. [PMID: 32708350 PMCID: PMC7407237 DOI: 10.3390/polym12071624] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/04/2020] [Accepted: 07/20/2020] [Indexed: 12/04/2022] Open
Abstract
Light produced by synchrotron radiation (SR) is much brighter than that produced by conventional laboratory X-ray sources. The photon energy of SR X-ray ranges from soft and tender X-rays to hard X-rays. Moreover, X-rays become element sensitive with decreasing photon energy. By using a wide energy range and high-quality light of SR, different scattering and spectroscopic methods were applied to various soft matters. We present five of our recent studies performed using specific light properties of a synchrotron facility, which are as follows: (1) In situ USAXS study to understand the deformation behavior of colloidal crystals during uniaxial stretching; (2) structure characterization of semiconducting polymer thin films along the film thickness direction by grazing-incidence wide-angle X-ray scattering using tender X-rays; (3) X-ray absorption fine structure (XAFS) analysis of the formation mechanism of poly(3-hexylthiophene) (P3HT); (4) soft X-ray absorption and emission spectroscopic analysis of water structure in polyelectrolyte brushes; and (5) X-ray photon correlation spectroscopic analysis of the diffusion behavior of polystyrene-grafted nanoparticles dispersed in a polystyrene matrix.
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Affiliation(s)
- Atsushi Takahara
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; (Y.H.); (T.H.); (R.I.)
- Correspondence:
| | - Yuji Higaki
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; (Y.H.); (T.H.); (R.I.)
- Department of Integrated Science and Technology, Faculty of Science and Technology, Oita University, 700 Dannoharu, Oita 870-1192, Japan
| | - Tomoyasu Hirai
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; (Y.H.); (T.H.); (R.I.)
- Department of Applied Chemistry, Faculty of Engineering, and Graduate School of Engineering, Osaka Institute of Technology, 5-16-1, Asahi-ku, Osaka 535-8585, Japan
| | - Ryohei Ishige
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; (Y.H.); (T.H.); (R.I.)
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, E4-5, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
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224
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Deng K, Luo Z, Tan L, Quan Z. Self-assembly of anisotropic nanoparticles into functional superstructures. Chem Soc Rev 2020; 49:6002-6038. [PMID: 32692337 DOI: 10.1039/d0cs00541j] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Self-assembly of colloidal nanoparticles (NPs) into superstructures offers a flexible and promising pathway to manipulate the nanometer-sized particles and thus make full use of their unique properties. This bottom-up strategy builds a bridge between the NP regime and a new class of transformative materials across multiple length scales for technological applications. In this field, anisotropic NPs with size- and shape-dependent physical properties as self-assembly building blocks have long fascinated scientists. Self-assembly of anisotropic NPs not only opens up exciting opportunities to engineer a variety of intriguing and complex superlattice architectures, but also provides access to discover emergent collective properties that stem from their ordered arrangement. Thus, this has stimulated enormous research interests in both fundamental science and technological applications. This present review comprehensively summarizes the latest advances in this area, and highlights their rich packing behaviors from the viewpoint of NP shape. We provide the basics of the experimental techniques to produce NP superstructures and structural characterization tools, and detail the delicate assembled structures. Then the current understanding of the assembly dynamics is discussed with the assistance of in situ studies, followed by emergent collective properties from these NP assemblies. Finally, we end this article with the remaining challenges and outlook, hoping to encourage further research in this field.
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Affiliation(s)
- Kerong Deng
- Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Key Laboratory of Energy Conversion and Storage Technologies, Ministry of Education, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China.
| | - Zhishan Luo
- Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Key Laboratory of Energy Conversion and Storage Technologies, Ministry of Education, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China.
| | - Li Tan
- Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Key Laboratory of Energy Conversion and Storage Technologies, Ministry of Education, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China.
| | - Zewei Quan
- Department of Chemistry, Academy for Advanced Interdisciplinary Studies, Key Laboratory of Energy Conversion and Storage Technologies, Ministry of Education, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, China.
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225
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Zhou X, Yang J, Zhong M, Xia Q, Li B, Duan X, Wei Z. Intercalation of Two-dimensional Layered Materials. Chem Res Chin Univ 2020. [DOI: 10.1007/s40242-020-0185-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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226
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Takahashi R, Fujii S, Akiba I, Sakurai K. Scattering Form Factor of Block Copolymer Micelles with Corona Chains Discretely Distributed on the Core Surface. J Phys Chem B 2020; 124:6140-6146. [PMID: 32580553 DOI: 10.1021/acs.jpcb.0c04120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Small-angle scattering is a powerful tool to investigate micellar structure, and a model form factor proposed by Pedersen and Gerstenberg [Pedersen, J. S.; Gerstenberg, M. Macromolecules 1996, 29, 1363-1365] has been used quite frequently to analyze experimentally obtained scattering data of block copolymer micelles. Their model consists of a spherical core and the Gaussian corona chains attached to the core surface; the corona chains are considered to be approximately continuously (evenly) distributed on the core surface. In this paper, we present a micellar form factor model in which the corona chains are discretely distributed on the core surface. Our proposed discrete model was found to deviate from the Pedersen-Gerstenberg model as well as another model [Svaneborg, C.; Pedersen, J. S. Phys. Rev. E 2001, 64, R01802.], which incorporates the approximate interference effect between the corona chains, in conditions in which the scattering from the corona chains is stronger than that from a core with lower number density of the corona chains.
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Affiliation(s)
- Rintaro Takahashi
- Department Chemistry and Biochemistry, University of Kitakyushu, 1-1 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0135, Japan
| | - Shota Fujii
- Department Chemistry and Biochemistry, University of Kitakyushu, 1-1 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0135, Japan
| | - Isamu Akiba
- Department Chemistry and Biochemistry, University of Kitakyushu, 1-1 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0135, Japan
| | - Kazuo Sakurai
- Department Chemistry and Biochemistry, University of Kitakyushu, 1-1 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0135, Japan
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227
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Salnikova KE, Larichev YV, Sulman EM, Bykov AV, Sidorov AI, Demidenko GN, Sulman MG, Bronstein LM, Matveeva VG. Selective Hydrogenation of Biomass-Derived Furfural: Enhanced Catalytic Performance of Pd-Cu Alloy Nanoparticles in Porous Polymer. Chempluschem 2020; 85:1697-1703. [PMID: 32662952 DOI: 10.1002/cplu.202000383] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/26/2020] [Indexed: 11/09/2022]
Abstract
Here, the development of a new catalyst is reported for the selective furfural (FF) hydrogenation to furfuryl alcohol (FA) based on about 7 nm sized Pd-Cu alloy nanoparticles (NPs) formed in inexpensive, commercially available micro/mesoporous hypercrosslinked polystyrene (HPS). A comparison of the catalytic properties of as-synthesized and reduced (denoted "r") catalysts as well as Pd-Cu alloy and monometallic palladium NPs showed a considerable enhancement of the catalytic performance of Pd-Cu/HPS-r compared to other catalysts studied, resulting in about 100 % FF conversion, 95.2 % selectivity for FA and a TOF of 1209 h-1 . This was attributed to the enrichment of the NP surface with copper atoms, disrupting the furan ring adsorption, and to the presence of both zerovalent and cationic palladium and copper species, resulting in optimal hydrogen and FF adsorption. These factors along with exceptional stability of the catalyst in ten consecutive catalytic cycles make it highly promising in practical applications.
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Affiliation(s)
- Ksenia E Salnikova
- Department of Biotechnology and Chemistry, Tver State Technical University, A.Nikitin str., 22, 170026, Tver, Russia.,Regional technological centre, Tver State University, Zhelyabova str., 33, 170100, Tver, Russia
| | - Yurii V Larichev
- Boreskov Institute of Catalysis, 5 Academician Lavrentiev Avenue, 630090, Novosibirsk, Russia.,Novosibirsk State University, 2 Pirogov Street, 630090, Novosibirsk, Russia
| | - Esther M Sulman
- Department of Biotechnology and Chemistry, Tver State Technical University, A.Nikitin str., 22, 170026, Tver, Russia
| | - Alexey V Bykov
- Department of Biotechnology and Chemistry, Tver State Technical University, A.Nikitin str., 22, 170026, Tver, Russia
| | - Alexander I Sidorov
- Department of Biotechnology and Chemistry, Tver State Technical University, A.Nikitin str., 22, 170026, Tver, Russia
| | - Galina N Demidenko
- Department of Biotechnology and Chemistry, Tver State Technical University, A.Nikitin str., 22, 170026, Tver, Russia
| | - Mikhail G Sulman
- Department of Biotechnology and Chemistry, Tver State Technical University, A.Nikitin str., 22, 170026, Tver, Russia
| | - Lyudmila M Bronstein
- Department of Chemistry, Indiana University, 800 E. Kirkwood Av., Bloomington, IN, 47408, USA.,A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St., Moscow, 119991, Russia.,Faculty of Science Department of Physics, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Valentina G Matveeva
- Department of Biotechnology and Chemistry, Tver State Technical University, A.Nikitin str., 22, 170026, Tver, Russia.,Regional technological centre, Tver State University, Zhelyabova str., 33, 170100, Tver, Russia
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228
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Zhang Z, Si R, Lv J, Ji Y, Chen W, Guan W, Cui Y, Zhang T. Effects of Extracellular Polymeric Substances on the Formation and Methylation of Mercury Sulfide Nanoparticles. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:8061-8071. [PMID: 32511902 DOI: 10.1021/acs.est.0c01456] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Growing evidence has suggested that microbial biofilms are potential environmental "hotspots" for the production and accumulation of a bioaccumulative neurotoxin, methylmercury. Here, we demonstrate that extracellular polymeric substances (EPS), the main components of biofilm matrices, significantly interfere with mercury sulfide precipitation and lead to the formation of nanoparticulate metacinnabar available for microbial methylation, a natural process predominantly responsible for the environmental occurrence of methylmercury. EPS derived from mercury methylating bacteria, particularly Desulfovibrio desulfuricans ND132, substantially increase the methylation potential of nanoparticulate mercury. This is likely due to the abundant aromatic biomolecules in EPS that strongly interact with mercury sulfide via inner-sphere complexation and consequently enhance the short-range structural disorder while mitigating the aggregation of nanoparticulate mercury. The EPS-elevated bioavailability of nanoparticulate mercury to D. desulfuricans ND132 is not induced by dissolution of these nanoparticles in aqueous phase, and may be dictated by cell-nanoparticle interfacial reactions. Our discovery is the first step of mechanistically understanding methylmercury production in biofilms. These new mechanistic insights will help incorporate microbial EPS and particulate-phase mercury into mercury methylation models, and may facilitate the assessment of biogeochemical cycling of other nutrient or toxic elements driven by EPS-producing microorganisms that are prevalent in nature.
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Affiliation(s)
- Zhanhua Zhang
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin 300350, P. R. China
| | - Rui Si
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, P. R. China
| | - Jitao Lv
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
| | - Yunyun Ji
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin 300350, P. R. China
| | - Wenshan Chen
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin 300350, P. R. China
| | - Wenyu Guan
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin 300350, P. R. China
| | - Yuxiao Cui
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin 300350, P. R. China
| | - Tong Zhang
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin 300350, P. R. China
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229
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Li B, Chua SL, Ch'ng AL, Yu D, Koh SP, Phang H, Chiew PKT. An effective approach for size characterization and mass quantification of silica nanoparticles in coffee creamer by AF4-ICP-MS. Anal Bioanal Chem 2020; 412:5499-5512. [PMID: 32621094 DOI: 10.1007/s00216-020-02770-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/27/2020] [Accepted: 06/12/2020] [Indexed: 11/25/2022]
Abstract
Silicon dioxide (SiO2) has been used as a food additive (E551) for decades. However, some safety concerns have been raised recently due to the detection of silica nanoparticles (SiO2 NPs) in a variety of foodstuffs and their unknown long-term health risk to humans. In order for risk assessment to be conducted, it is essential to establish a reliable, valid, and pragmatic method for analysis of SiO2 NPs in foods for estimation of exposure. This paper presents an effective approach for both size characterization and mass quantification of SiO2 NPs in commercial high-fat coffee creamer using asymmetric flow field-flow fractionation (AF4) coupled to inductively coupled plasma mass spectrometry (ICP-MS). SiO2 NPs from coffee creamer were well extracted after cleanup with hexane in a two-phase (hexane vs. water) aqueous environment. Size determination of SiO2 NPs was performed by on-line AF4-ICP-MS based on calibration with monodispersed standards. The dominant primary size of SiO2 NPs in the studied sample was 36.5 nm. The mass percentages of SiO2 NPs (vs. total SiO2) were 18.6% for the dominant primary nano-silica particles by prechannel calibration and 35.7% for total SiO2 NPs (≤ 100 nm) by postchannel calibration, with recoveries of 89-96% for the former and 75% for the latter. The established approach was demonstrated to be efficient and practical for routine analysis of polydispersed SiO2 NPs with wide nano-size distribution in coffee creamer. This method may be extended to monitor the presence of SiO2 NPs in other similar complex food matrices. Graphical abstract.
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Affiliation(s)
- Bin Li
- National Centre for Food Science, Singapore Food Agency, 10 Perahu Road, Singapore, 718837, Singapore
| | - Sew Lay Chua
- National Centre for Food Science, Singapore Food Agency, 10 Perahu Road, Singapore, 718837, Singapore
| | - Ai Lee Ch'ng
- Veterinary Public Health Laboratory, Agri-Food and Veterinary Authority of Singapor, 10 Perahu Road, Singapore, 718837, Singapore
| | - Dingyi Yu
- National Centre for Food Science, Singapore Food Agency, 10 Perahu Road, Singapore, 718837, Singapore
| | - Shoo Peng Koh
- National Centre for Food Science, Singapore Food Agency, 10 Perahu Road, Singapore, 718837, Singapore.
| | - Helen Phang
- National Centre for Food Science, Singapore Food Agency, 10 Perahu Road, Singapore, 718837, Singapore
| | - Paul K T Chiew
- National Centre for Food Science, Singapore Food Agency, 10 Perahu Road, Singapore, 718837, Singapore
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230
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Esteban Florez FL, Trofimov AA, Ievlev A, Qian S, Rondinone AJ, Khajotia SS. Advanced characterization of surface-modified nanoparticles and nanofilled antibacterial dental adhesive resins. Sci Rep 2020; 10:9811. [PMID: 32555360 PMCID: PMC7299952 DOI: 10.1038/s41598-020-66819-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 05/21/2020] [Indexed: 11/30/2022] Open
Abstract
Nanotechnology can improve the performance of dental polymers. The objective of this study was to modify the surfaces of nanoparticles with silanes and proteins, characterize nanoparticles' agglomeration levels and interfaces between nanoparticles and the polymeric matrix. Undoped (n-TiO2), nitrogen-doped (N_TiO2) and nitrogen-fluorine co-doped titanium dioxide nanoparticles (NF_TiO2) were synthesized and subjected to surface modification procedures in preparation for Small-Angle X-Ray Scattering (SAXS) and Small-Angle Neutron Scattering (SANS) characterizations. Experimental adhesives were manually synthesized by incorporating 20% (v/v) of n-TiO2, N_TiO2 or NF_TiO2 (as-synthesized or surface-modified) into OptiBond Solo Plus (OPTB). Specimens (n = 15/group; d = 6.0 mm, t = 0.5 mm) of OPTB and experimental adhesives were characterized using Time-of-Flight Secondary Ion Mass Spectroscopy (ToF-SIMS), 2-D ToF-SIMS chemical imaging and SANS. SAXS results indicated that surface-modified nanoparticles displayed higher scattering intensities in a particle-size dependent manner. ToF-SIMS results demonstrated that nanoparticles' incorporation did not adversely impact the parental polymer. 2-D ToF-SIMS chemical imaging demonstrated the distribution of Ti+ and confirmed nitrogen-doping levels. SANS results confirmed nanoparticles' functionalization and revealed the interfaces between nanoparticles and the polymer matrix. Metaloxide nanoparticles were successfully fabricated, incorporated and covalently functionalized in a commercial dental adhesive resin, thereby supporting the utilization of nanotechnology in dentistry.
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Affiliation(s)
- Fernando Luis Esteban Florez
- The University of Oklahoma Health Sciences Center, Department of Restorative Sciences, Division of Dental Biomaterials, College of Dentistry, 1201 N. Stonewall Avenue, Oklahoma City, Oklahoma, 73117, USA.
| | - Artem A Trofimov
- Oak Ridge National Laboratory, Center for Nanophase Materials Sciences, Oak Ridge, Tennessee, 37831, USA
| | - Anton Ievlev
- Oak Ridge National Laboratory, Center for Nanophase Materials Sciences, Oak Ridge, Tennessee, 37831, USA
| | - Shuo Qian
- Oak Ridge National Laboratory, Neutron Scattering Division, Oak Ridge, Tennessee, 37831, USA
| | - Adam Justin Rondinone
- Oak Ridge National Laboratory, Center for Nanophase Materials Sciences, Oak Ridge, Tennessee, 37831, USA
| | - Sharukh Soli Khajotia
- The University of Oklahoma Health Sciences Center, Department of Restorative Sciences, Division of Dental Biomaterials, College of Dentistry, 1201 N. Stonewall Avenue, Oklahoma City, Oklahoma, 73117, USA
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231
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Yang Y, Liao S, Luo Z, Qi R, Mac Fhionnlaoich N, Stellacci F, Guldin S. Comparative characterisation of non-monodisperse gold nanoparticle populations by X-ray scattering and electron microscopy. NANOSCALE 2020; 12:12007-12013. [PMID: 32463396 DOI: 10.1039/c9nr09481d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Accurate nanoparticle size determination is essential across various research domains, with many functionalities in nanoscience and biomedical research being size-dependent. Although electron microscopy is capable of resolving a single particle down to the sub-nm scale, the reliable representation of entire populations is plagued by challenges in providing statistical significance, suboptimal preparation procedures and operator bias. While alternative techniques exist that provide ensemble information in solution, their implementation is generally challenging for non-monodisperse populations. Herein, we explore the use of small-angle X-ray scattering in combination with form-free Monte Carlo fitting of scattering profiles as an alternative to conventional electron microscopy imaging in providing access to any type of core size distribution. We report on a cross-method comparison for quasi-monodisperse, polydisperse and bimodal gold nanoparticles of 2-7 nm in diameter and discuss advantages and limitations of both techniques.
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Affiliation(s)
- Ye Yang
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
| | - Suiyang Liao
- Institute of Materials, École Polytechnique Fédérale de Lausanne (EPFL), Station 12, 1015 Lausanne, Switzerland
| | - Zhi Luo
- Institute of Materials, École Polytechnique Fédérale de Lausanne (EPFL), Station 12, 1015 Lausanne, Switzerland
| | - Runzhang Qi
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
| | - Niamh Mac Fhionnlaoich
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
| | - Francesco Stellacci
- Institute of Materials, École Polytechnique Fédérale de Lausanne (EPFL), Station 12, 1015 Lausanne, Switzerland and Interfaculty Bioengineering Institute, École Polytechnique Fédérale de Lausanne (EPFL), Station 12, 1015 Lausanne, Switzerland
| | - Stefan Guldin
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
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232
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Liu CH, Janke EM, Li R, Juhás P, Gang O, Talapin DV, Billinge SJL. sasPDF: pair distribution function analysis of nanoparticle assemblies from small-angle scattering data. J Appl Crystallogr 2020; 53:699-709. [PMID: 32684885 PMCID: PMC7312144 DOI: 10.1107/s1600576720004628] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 04/02/2020] [Indexed: 11/10/2022] Open
Abstract
sasPDF, a method for characterizing the structure of nanoparticle assemblies (NPAs), is presented. The method is an extension of the atomic pair distribution function (PDF) analysis to the small-angle scattering (SAS) regime. The PDFgetS3 software package for computing the PDF from SAS data is also presented. An application of the sasPDF method to characterize structures of representative NPA samples with different levels of structural order is then demonstrated. The sasPDF method quantitatively yields information such as structure, disorder and crystallite sizes of ordered NPA samples. The method was also used to successfully model the data from a disordered NPA sample. The sasPDF method offers the possibility of more quantitative characterizations of NPA structures for a wide class of samples.
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Affiliation(s)
- Chia-Hao Liu
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, USA
| | - Eric M. Janke
- Department of Chemistry, University of Chicago, Chicago, IL 60637, USA
| | - Ruipen Li
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Pavol Juhás
- Computational Science Initiative, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Oleg Gang
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, USA
- Center for Functional Nanomaterials, Energy and Photon Sciences Directorate, Brookhaven National Laboratory, Upton, NY 11973, USA
- Department of Chemical Engineering, Columbia University, New York, NY 10027, USA
| | - Dmitri V. Talapin
- Department of Chemistry, University of Chicago, Chicago, IL 60637, USA
| | - Simon J. L. Billinge
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, USA
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, USA
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233
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Baiyasi R, Gallagher MJ, McCarthy LA, Searles EK, Zhang Q, Link S, Landes CF. Quantitative Analysis of Nanorod Aggregation and Morphology from Scanning Electron Micrographs Using SEMseg. J Phys Chem A 2020; 124:5262-5270. [DOI: 10.1021/acs.jpca.0c03190] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Rashad Baiyasi
- Department of Electrical and Computer Engineering, Rice University, MS 366, Houston, Texas 77005, United States
| | - Miranda J. Gallagher
- Department of Chemistry, Rice University, MS 60, Houston, Texas 77005, United States
| | - Lauren A. McCarthy
- Department of Chemistry, Rice University, MS 60, Houston, Texas 77005, United States
| | - Emily K. Searles
- Department of Chemistry, Rice University, MS 60, Houston, Texas 77005, United States
| | - Qingfeng Zhang
- Department of Chemistry, Rice University, MS 60, Houston, Texas 77005, United States
- Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
| | - Stephan Link
- Department of Electrical and Computer Engineering, Rice University, MS 366, Houston, Texas 77005, United States
- Department of Chemistry, Rice University, MS 60, Houston, Texas 77005, United States
- Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
| | - Christy F. Landes
- Department of Electrical and Computer Engineering, Rice University, MS 366, Houston, Texas 77005, United States
- Department of Chemistry, Rice University, MS 60, Houston, Texas 77005, United States
- Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
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234
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Saez Cabezas CA, Sherman ZM, Howard MP, Dominguez MN, Cho SH, Ong GK, Green AM, Truskett TM, Milliron DJ. Universal Gelation of Metal Oxide Nanocrystals via Depletion Attractions. NANO LETTERS 2020; 20:4007-4013. [PMID: 32357005 DOI: 10.1021/acs.nanolett.0c01311] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanocrystal gelation provides a powerful framework to translate nanoscale properties into bulk materials and to engineer emergent properties through the assembled microstructure. However, many established gelation strategies rely on chemical reactions and specific interactions, e.g., stabilizing ligands or ions on the nanocrystals' surfaces, and are therefore not easily transferable. Here, we report a general gelation strategy via nonspecific and purely entropic depletion attractions applied to three types of metal oxide nanocrystals. The gelation thresholds of two compositionally distinct spherical nanocrystals agree quantitatively, demonstrating the adaptability of the approach for different chemistries. Consistent with theoretical phase behavior predictions, nanocrystal cubes form gels at a lower polymer concentration than nanocrystal spheres, allowing shape to serve as a handle to control gelation. These results suggest that the fundamental underpinnings of depletion-driven assembly, traditionally associated with larger colloidal particles, are also applicable at the nanoscale.
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Affiliation(s)
- Camila A Saez Cabezas
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712-1589, United States
| | - Zachary M Sherman
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712-1589, United States
| | - Michael P Howard
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712-1589, United States
| | - Manuel N Dominguez
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712-1589, United States
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712-1589, United States
| | - Shin Hum Cho
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712-1589, United States
| | - Gary K Ong
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712-1589, United States
| | - Allison M Green
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712-1589, United States
| | - Thomas M Truskett
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712-1589, United States
- Department of Physics, University of Texas at Austin, Austin, Texas 78712-1589, United States
| | - Delia J Milliron
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712-1589, United States
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235
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Feger G, Angelov B, Angelova A. Prediction of Amphiphilic Cell-Penetrating Peptide Building Blocks from Protein-Derived Amino Acid Sequences for Engineering of Drug Delivery Nanoassemblies. J Phys Chem B 2020; 124:4069-4078. [PMID: 32337991 DOI: 10.1021/acs.jpcb.0c01618] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Amphiphilic molecules, forming self-assembled nanoarchitectures, are typically composed of hydrophobic and hydrophilic domains. Peptide amphiphiles can be designed from two, three, or four building blocks imparting novel structural and functional properties and affinities for interaction with cellular membranes or intracellular organelles. Here we present a combined numerical approach to design amphiphilic peptide scaffolds that are derived from the human nuclear Ki-67 protein. Ki-67 acts, like a biosurfactant, as a steric and electrostatic charge barrier against the collapse of mitotic chromosomes. The proposed predictive design of new Ki-67 protein-derived amphiphilic amino acid sequences exploits the computational outcomes of a set of web-accessible predictors, which are based on machine learning methods. The ensemble of such artificial intelligence algorithms, involving support vector machine (SVM), random forest (RF) classifiers, and neural networks (NN), enables the nanoengineering of a broad range of innovative peptide materials for therapeutic delivery in various applications. Amphiphilic cell-penetrating peptides (CPP), derived from natural protein sequences, may spontaneously form self-assembled nanocarriers characterized by enhanced cellular uptake. Thanks to their inherent low immunogenicity, they may enable the safe delivery of therapeutic molecules across the biological barriers.
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Affiliation(s)
- Guillaume Feger
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay UMR8612, F-92296 Châtenay-Malabry, France
| | - Borislav Angelov
- Institute of Physics, ELI Beamlines, Academy of Sciences of the Czech Republic, Na Slovance 2, CZ-18221 Prague, Czech Republic
| | - Angelina Angelova
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay UMR8612, F-92296 Châtenay-Malabry, France
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236
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Ploetz E, Zimpel A, Cauda V, Bauer D, Lamb DC, Haisch C, Zahler S, Vollmar AM, Wuttke S, Engelke H. Metal-Organic Framework Nanoparticles Induce Pyroptosis in Cells Controlled by the Extracellular pH. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907267. [PMID: 32182391 DOI: 10.1002/adfm.201909062] [Citation(s) in RCA: 113] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 03/01/2020] [Accepted: 03/02/2020] [Indexed: 05/23/2023]
Abstract
Ion homeostasis is essential for cellular survival, and elevated concentrations of specific ions are used to start distinct forms of programmed cell death. However, investigating the influence of certain ions on cells in a controlled way has been hampered due to the tight regulation of ion import by cells. Here, it is shown that lipid-coated iron-based metal-organic framework nanoparticles are able to deliver and release high amounts of iron ions into cells. While high concentrations of iron often trigger ferroptosis, here, the released iron induces pyroptosis, a form of cell death involving the immune system. The iron release occurs only in slightly acidic extracellular environments restricting cell death to cells in acidic microenvironments and allowing for external control. The release mechanism is based on endocytosis facilitated by the lipid-coating followed by degradation of the nanoparticle in the lysosome via cysteine-mediated reduction, which is enhanced in slightly acidic extracellular environment. Thus, a new functionality of hybrid nanoparticles is demonstrated, which uses their nanoarchitecture to facilitate controlled ion delivery into cells. Based on the selectivity for acidic microenvironments, the described nanoparticles may also be used for immunotherapy: the nanoparticles may directly affect the primary tumor and the induced pyroptosis activates the immune system.
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Affiliation(s)
- Evelyn Ploetz
- Department of Chemistry and Center for NanoScience (CeNS), LMU Munich, Munich, 81377, Germany
- Nanosystems Initiative Munich (NIM), LMU Munich, Munich, 81377, Germany
- Center for Integrated Protein Science Munich (CiPSM), LMU Munich, Munich, 81377, Germany
| | - Andreas Zimpel
- Department of Chemistry and Center for NanoScience (CeNS), LMU Munich, Munich, 81377, Germany
| | - Valentina Cauda
- Department of Applied Science and Technology, Politecnico di Torino, Torino, 10129, Italy
| | - David Bauer
- Department of Chemistry, TU Munich, Munich, 81377, Germany
| | - Don C Lamb
- Department of Chemistry and Center for NanoScience (CeNS), LMU Munich, Munich, 81377, Germany
- Nanosystems Initiative Munich (NIM), LMU Munich, Munich, 81377, Germany
- Center for Integrated Protein Science Munich (CiPSM), LMU Munich, Munich, 81377, Germany
| | | | - Stefan Zahler
- Department of Pharmacy, LMU Munich, Munich, 81377, Germany
| | | | - Stefan Wuttke
- BCMaterials, Basque Center for Materials, UPV/EHU Science Park, Leioa, 48940, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, 48013, Spain
| | - Hanna Engelke
- Department of Chemistry and Center for NanoScience (CeNS), LMU Munich, Munich, 81377, Germany
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237
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Thermodynamic stability condition can judge whether a nanoparticle dispersion can be considered a solution in a single phase. J Colloid Interface Sci 2020; 575:472-479. [PMID: 32402826 DOI: 10.1016/j.jcis.2020.04.101] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/12/2020] [Accepted: 04/23/2020] [Indexed: 11/20/2022]
Abstract
Establishing that a nanoparticle dispersion can, in fact, be treated as a solution has an important practical ramification, namely the application of solubility theories for solvent selection. However, what distinguishes a solution and dispersion has remained ambiguously understood. Based on the recent progress in statistical thermodynamics on multiple-component solutions, here we establish the condition upon which a nanoparticle dispersion can be considered a single-phased solution. We shall provide experimental evidence already found in the literature showing the solution nature of nanoparticle dispersions.
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238
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Vanhecke D, Crippa F, Lattuada M, Balog S, Rothen-Rutishauser B, Petri-Fink A. Characterization of the Shape Anisotropy of Superparamagnetic Iron Oxide Nanoparticles during Thermal Decomposition. MATERIALS 2020; 13:ma13092018. [PMID: 32344889 PMCID: PMC7254344 DOI: 10.3390/ma13092018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/22/2020] [Accepted: 04/22/2020] [Indexed: 12/30/2022]
Abstract
Magnetosomes are near-perfect intracellular magnetite nanocrystals found in magnetotactic bacteria. Their synthetic imitation, known as superparamagnetic iron oxide nanoparticles (SPIONs), have found applications in a variety of (nano)medicinal fields such as magnetic resonance imaging contrast agents, multimodal imaging and drug carriers. In order to perform these functions in medicine, shape and size control of the SPIONs is vital. We sampled SPIONs at ten-minutes intervals during the high-temperature thermal decomposition reaction. Their shape (sphericity and anisotropy) and geometric description (volume and surface area) were retrieved using three-dimensional imaging techniques, which allowed to reconstruct each particle in three dimensions, followed by stereological quantification methods. The results, supported by small angle X-ray scattering characterization, reveal that SPIONs initially have a spherical shape, then grow increasingly asymmetric and irregular. A high heterogeneity in volume at the initial stages makes place for lower particle volume dispersity at later stages. The SPIONs settled into a preferred orientation on the support used for transmission electron microscopy imaging, which hides the extent of their anisotropic nature in the axial dimension, there by biasing the interpretation of standard 2D micrographs. This information could be feedback into the design of the chemical processes and the characterization strategies to improve the current applications of SPIONs in nanomedicine.
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Affiliation(s)
- Dimitri Vanhecke
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland
| | - Federica Crippa
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland
| | - Marco Lattuada
- Chemistry Department, University of Fribourg, Chemin du Musée 9, 1700 Fribourg, Switzerland
| | - Sandor Balog
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland
| | | | - Alke Petri-Fink
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland
- Chemistry Department, University of Fribourg, Chemin du Musée 9, 1700 Fribourg, Switzerland
- Correspondence: ; Tel.: +41-(0)-26-300-9501
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239
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Aliyah K, Lyu J, Goldmann C, Bizien T, Hamon C, Alloyeau D, Constantin D. Real-Time In Situ Observations Reveal a Double Role for Ascorbic Acid in the Anisotropic Growth of Silver on Gold. J Phys Chem Lett 2020; 11:2830-2837. [PMID: 32200632 DOI: 10.1021/acs.jpclett.0c00121] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Rational nanoparticle design is one of the main goals of materials science, but it can only be achieved via a thorough understanding of the growth process and of the respective roles of the molecular species involved. We demonstrate that a combination of complementary techniques can yield novel information with respect to their individual contributions. We monitored the growth of long aspect ratio silver rods from gold pentatwinned seeds by three in situ techniques (small-angle X-ray scattering, optical extinction spectroscopy and liquid-cell transmission electron microscopy). Exploiting the difference in reaction speed between the bulk synthesis and the nanoparticle formation in the TEM cell, we show that the anisotropic growth is thermodynamically controlled (rather than kinetically) and that ascorbic acid, widely used for its mild reductive properties, plays a shape-directing role, by stabilizing the {100} facets of the silver cubic lattice, in synergy with the halide ions. This approach can easily be applied to a wide variety of synthesis strategies.
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Affiliation(s)
- Kinanti Aliyah
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France
| | - Jieli Lyu
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France
| | - Claire Goldmann
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France
| | - Thomas Bizien
- SWING beamline, SOLEIL Synchrotron, 91192 Gif-sur-Yvette, France
| | - Cyrille Hamon
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France
| | - Damien Alloyeau
- Laboratoire Matériaux et Phénomènes Quantiques, Université de Paris - CNRS, F-75013 Paris, France
| | - Doru Constantin
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France
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240
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Girard M, Wang S, Du JS, Das A, Huang Z, Dravid VP, Lee B, Mirkin CA, Olvera de la Cruz M. Particle analogs of electrons in colloidal crystals. Science 2020; 364:1174-1178. [PMID: 31221857 DOI: 10.1126/science.aaw8237] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 05/28/2019] [Indexed: 12/13/2022]
Abstract
A versatile method for the design of colloidal crystals involves the use of DNA as a particle-directing ligand. With such systems, DNA-nanoparticle conjugates are considered programmable atom equivalents (PAEs), and design rules have been devised to engineer crystallization outcomes. This work shows that when reduced in size and DNA grafting density, PAEs behave as electron equivalents (EEs), roaming through and stabilizing the lattices defined by larger PAEs, as electrons do in metals in the classical picture. This discovery defines a new property of colloidal crystals-metallicity-that is characterized by the extent of EE delocalization and diffusion. As the number of strands increases or the temperature decreases, the EEs localize, which is structurally reminiscent of a metal-insulator transition. Colloidal crystal metallicity, therefore, provides new routes to metallic, intermetallic, and compound phases.
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Affiliation(s)
- Martin Girard
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA.,Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA.,International Institute for Nanotechnology, Northwestern University, Evanston, IL 60208, USA
| | - Shunzhi Wang
- International Institute for Nanotechnology, Northwestern University, Evanston, IL 60208, USA.,Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Jingshan S Du
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA.,International Institute for Nanotechnology, Northwestern University, Evanston, IL 60208, USA
| | - Anindita Das
- International Institute for Nanotechnology, Northwestern University, Evanston, IL 60208, USA.,Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Ziyin Huang
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA.,International Institute for Nanotechnology, Northwestern University, Evanston, IL 60208, USA
| | - Vinayak P Dravid
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA.,International Institute for Nanotechnology, Northwestern University, Evanston, IL 60208, USA
| | - Byeongdu Lee
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Chad A Mirkin
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA. .,International Institute for Nanotechnology, Northwestern University, Evanston, IL 60208, USA.,Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Monica Olvera de la Cruz
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA. .,Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA.,International Institute for Nanotechnology, Northwestern University, Evanston, IL 60208, USA.,Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
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241
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Wang Y, Li L, Wang Y, Yang Q, Ye Z, Hua C, Tian Y, Klitzing RV, Guo X. Interaction among Spherical Polyelectrolyte Brushes in Concentrated Aqueous Solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3104-3110. [PMID: 32176504 DOI: 10.1021/acs.langmuir.9b03180] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Interaction among concentrated spherical polyelectrolyte brushes (SPB) dispersions in water was systematically investigated by means of small-angle X-ray scattering (SAXS), wide-angle X-ray scattering (WAXS), and rheological methods. SPB consist of a core of polystyrene (PS) and a poly(acrylic acid) (PAA) brush shell. The "polyelectrolyte peak" appeared in SAXS spectra and was observed in WAXS curves for the first time. The size of the polyelectrolyte peak and the rheological properties of SPB were found to be strongly effected by SPB concentration, pH, and ionic strength. Combined with SAXS, WAXS, and rheological results, it is confirmed that the polyelectrolyte peak is originated from local ordered structures of polyelectrolyte chains bridged by counterions in the overlapping area among SPB driven by electrostatic interactions.
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Affiliation(s)
- Yunwei Wang
- State Key Laboratory of Chemical Engineering, Engineering Research Center of Large Scale Reactor Engineering and Technology (Ministry of Education), and International Joint Research Center of Green Energy Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Li Li
- State Key Laboratory of Chemical Engineering, Engineering Research Center of Large Scale Reactor Engineering and Technology (Ministry of Education), and International Joint Research Center of Green Energy Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Yiming Wang
- State Key Laboratory of Chemical Engineering, Engineering Research Center of Large Scale Reactor Engineering and Technology (Ministry of Education), and International Joint Research Center of Green Energy Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Qingshong Yang
- State Key Laboratory of Chemical Engineering, Engineering Research Center of Large Scale Reactor Engineering and Technology (Ministry of Education), and International Joint Research Center of Green Energy Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Zhishuang Ye
- State Key Laboratory of Chemical Engineering, Engineering Research Center of Large Scale Reactor Engineering and Technology (Ministry of Education), and International Joint Research Center of Green Energy Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Chen Hua
- State Key Laboratory of Chemical Engineering, Engineering Research Center of Large Scale Reactor Engineering and Technology (Ministry of Education), and International Joint Research Center of Green Energy Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Yuchuan Tian
- State Key Laboratory of Chemical Engineering, Engineering Research Center of Large Scale Reactor Engineering and Technology (Ministry of Education), and International Joint Research Center of Green Energy Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Regine von Klitzing
- Technical University Darmstadt, Department of Physics, Soft Matter at Interfaces, Darmstadt 64287, Germany
| | - Xuhong Guo
- State Key Laboratory of Chemical Engineering, Engineering Research Center of Large Scale Reactor Engineering and Technology (Ministry of Education), and International Joint Research Center of Green Energy Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
- Engineering Research Center of Xinjiang Bingtuan of Materials Chemical Engineering, School of Chemistry and Chemical Engineering, Shihezi University, Xinjiang 832000, P.R. China
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242
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Engström J, Jimenez AM, Malmström E. Nanoparticle rearrangement under stress in networks of cellulose nanofibrils using in situ SAXS during tensile testing. NANOSCALE 2020; 12:6462-6471. [PMID: 32150180 DOI: 10.1039/c9nr10964a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This study aims to describe and evaluate the mechanism for increased strain-at-break of composites made of cellulose nanofibrils (CNFs) reinforced with nanoscopic latex particles (<200 nm) stabilized by a cationic polyelectrolyte as corona. The applied latex nanoparticles (NPs), synthesized by polymerization-induced self-assembly (PISA), are composed of a neutral core polymer, either poly(butyl methacrylate) (PBMA) or poly(methyl methacrylate) (PMMA). At room temperature, PBMA is close to its glass transition (Tg), while PMMA is below its Tg. Nanocomposites with 75 wt% CNFs and 25 wt% NPs were analyzed using in situ small angle X-ray scattering during tensile testing, monitoring the structural evolution of the NPs under strain. The scattering of the spherical PMMA NPs, which do not coalesce like the PBMA NPs, shows changes to the organization of the NPs in the CNF-network. The observations are corroborated by cross-sectional transmission and scanning electron microscopy. No distinct change from spherical to ellipsoidal shape is evidenced for the PMMA NP cores during tensile strain. Changes in anisotropic scattering produced by the three-dimensional NP structure appear to be very different between nanocomposites loaded with PMMA or PBMA NPs, contrasting commonly described two-dimensional CNF networks. The discrete PMMA NPs can reorganize within the CNF-NP double network under strain, resulting in maintained strength and increased strain-at-break. Increasing the humidity (20, 50 and 80% RH) during in situ measurements further emphasizes this effect in the PMMA composite, relative to the PBMA composite and CNF reference films. The onset of deformation occurs at strain values beyond the fracture of the more brittle films, indicating the effect of secondary nanoscale interaction available only for the PMMA composite, extending the plastic deformation and increasing the ductility. These results provide key insights into the deformation mechanism occurring during tensile testing in the CNF composites loaded with PMMA NPs.
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Affiliation(s)
- J Engström
- KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Fibre and Polymer Technology, Sweden. and Wallenberg Wood Science Centre, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
| | - A M Jimenez
- Department of Chemical Engineering, Columbia University, 10027 New York, NY, USA
| | - E Malmström
- KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Fibre and Polymer Technology, Sweden. and Wallenberg Wood Science Centre, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
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243
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Shen J, Zhou Y, Lu Y, Wang B, Shen C, Chen J, Zhang B. Later Stage Melting of Isotactic Polypropylene. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b01880] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Junfang Shen
- School of Materials Science & Engineering, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Yufeng Zhou
- School of Materials Science & Engineering, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Yaguang Lu
- School of Materials Science & Engineering, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Binghua Wang
- School of Materials Science & Engineering, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Changyu Shen
- School of Materials Science & Engineering, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Jingbo Chen
- School of Materials Science & Engineering, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Bin Zhang
- School of Materials Science & Engineering, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
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244
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Märkl RS, Hohn N, Hupf E, Bießmann L, Körstgens V, Kreuzer LP, Mangiapia G, Pomm M, Kriele A, Rivard E, Müller-Buschbaum P. Comparing the backfilling of mesoporous titania thin films with hole conductors of different sizes sharing the same mass density. IUCRJ 2020; 7:268-275. [PMID: 32148854 PMCID: PMC7055378 DOI: 10.1107/s2052252520000913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 01/23/2020] [Indexed: 06/10/2023]
Abstract
Efficient infiltration of a mesoporous titania matrix with conducting organic polymers or small molecules is one key challenge to overcome for hybrid photovoltaic devices. A quantitative analysis of the backfilling efficiency with time-of-flight grazing incidence small-angle neutron scattering (ToF-GISANS) and scanning electron microscopy (SEM) measurements is presented. Differences in the morphology due to the backfilling of mesoporous titania thin films are compared for the macromolecule poly[4,8-bis-(5-(2-ethyl-hexyl)-thio-phen-2-yl)benzo[1,2-b;4,5-b']di-thio-phene-2,6-diyl-alt-(4-(2-ethyl-hexyl)-3-fluoro-thieno[3,4-b]thio-phene-)-2-carboxyl-ate-2-6-diyl)] (PTB7-Th) and the heavy-element containing small molecule 2-pinacol-boronate-3-phenyl-phen-anthro[9,10-b]telluro-phene (PhenTe-BPinPh). Hence, a 1.7 times higher backfilling efficiency of almost 70% is achieved for the small molecule PhenTe-BPinPh compared with the polymer PTB7-Th despite sharing the same volumetric mass density. The precise characterization of structural changes due to backfilling reveals that the volumetric density of backfilled materials plays a minor role in obtaining good backfilling efficiencies and interfaces with large surface contact.
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Affiliation(s)
- Raphael S. Märkl
- Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Strasse 1, Garching 85748, Germany
| | - Nuri Hohn
- Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Strasse 1, Garching 85748, Germany
| | - Emanuel Hupf
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr, Edmonton, Alberta T6G 2G2, Canada
| | - Lorenz Bießmann
- Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Strasse 1, Garching 85748, Germany
| | - Volker Körstgens
- Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Strasse 1, Garching 85748, Germany
| | - Lucas P. Kreuzer
- Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Strasse 1, Garching 85748, Germany
| | - Gaetano Mangiapia
- Helmholtz Zentrum Geesthacht at Heinz Maier-Leibnitz-Zentrum, Lichtenbergstr. 1, Garching 85748, Germany
| | - Matthias Pomm
- Helmholtz Zentrum Geesthacht at Heinz Maier-Leibnitz-Zentrum, Lichtenbergstr. 1, Garching 85748, Germany
| | - Armin Kriele
- Helmholtz Zentrum Geesthacht at Heinz Maier-Leibnitz-Zentrum, Lichtenbergstr. 1, Garching 85748, Germany
| | - Eric Rivard
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr, Edmonton, Alberta T6G 2G2, Canada
| | - Peter Müller-Buschbaum
- Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Strasse 1, Garching 85748, Germany
- Heinz Maier-Leibnitz-Zentrum, Lichtenbergstr. 1, Garching 85748, Germany
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245
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Yu Z, Curtiss LA, Winans RE, Zhang Y, Li T, Cheng L. Asymmetric Composition of Ionic Aggregates and the Origin of High Correlated Transference Number in Water-in-Salt Electrolytes. J Phys Chem Lett 2020; 11:1276-1281. [PMID: 31951143 DOI: 10.1021/acs.jpclett.9b03495] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
"Water-in-salt" electrolytes open up exciting new avenues for expanding the electrochemical window of aqueous electrolytes. We investigated the solvation structure and dynamics of highly concentrated lithium bis(trifluoromethane)sulfonimide aqueous electrolyte using experimentally corroborated molecular dynamics simulations. The simulations revealed that the heterogeneous structure of the electrolyte comprises percolating networks of ion and water domains/aggregates. Interestingly, the ionic regions are composed of more TFSI- ions than Li+ ions. The Li+-ion transport mechanism was further explored. Li+ ions can hop along the coordinated TFSI- ions in the ionic aggregates. The calculated correlated transference number of the 20 m electrolyte is ∼0.32, which is reasonably high for the high concentration due to a weak negative correlation between the motion of cations and anions within the heterogeneous microscopic domains. These molecular dynamics results connect the heterogeneous structure of the electrolyte to the correlated dynamics of the Li+ ion and provide a new understanding of the Li+-ion transport mechanism in this novel electrolyte.
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Affiliation(s)
- Zhou Yu
- Materials Science Division and Joint Center for Energy Storage Research , Argonne National Laboratory , Lemont , Illinois 60439 , United States
| | - Larry A Curtiss
- Materials Science Division and Joint Center for Energy Storage Research , Argonne National Laboratory , Lemont , Illinois 60439 , United States
| | - Randall E Winans
- X-ray Science Division , Argonne National Laboratory , Lemont , Illinois 60439 , United States
| | - Yang Zhang
- Department of Nuclear, Plasma, and Radiological Engineering, Beckman Institute for Advanced Science and Technology, Program of Computational Science and Engineering and Department of Electrical and Computer Engineering , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | - Tao Li
- X-ray Science Division , Argonne National Laboratory , Lemont , Illinois 60439 , United States
- Department of Chemistry and Biochemistry , Northern Illinois University , DeKalb , Illinois 60115 , United States
| | - Lei Cheng
- Materials Science Division and Joint Center for Energy Storage Research , Argonne National Laboratory , Lemont , Illinois 60439 , United States
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246
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Wong JC, Xiang L, Ngoi KH, Chia CH, Jin KS, Ree M. Quantitative Structural Analysis of Polystyrene Nanoparticles Using Synchrotron X-Ray Scattering and Dynamic Light Scattering. Polymers (Basel) 2020; 12:polym12020477. [PMID: 32093008 PMCID: PMC7077714 DOI: 10.3390/polym12020477] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 02/16/2020] [Accepted: 02/18/2020] [Indexed: 01/03/2023] Open
Abstract
A series of polystyrene nanoparticles (PS-1, PS-2, PS-3, and PS-4) in aqueous solutions were investigated in terms of morphological structure, size, and size distribution. Synchrotron small-angle X-ray scattering analysis (SAXS) was carried out, providing morphology details, size and size distribution on the particles. PS-1, PS-2, and PS-3 were confirmed to behave two-phase (core and shell) spherical shapes, whereas PS-4 exhibited a single-phase spherical shape. They all revealed very narrow unimodal size distributions. The structural parameter details including radial density profile were determined. In addition, the presence of surfactant molecules and their assemblies were detected for all particle solutions, which could originate from their surfactant-assisted emulsion polymerizations. In addition, dynamic light scattering (DLS) analysis was performed, finding only meaningful hydrodynamic size and intensity-weighted mean size information on the individual PS solutions because of the particles' spherical nature. In contrast, the size distributions were extracted unrealistically too broad, and the volume- and number-weighted mean sizes were too small, therefore inappropriate to describe the particle systems. Furthermore, the DLS analysis could not detect completely the surfactant and their assemblies present in the particle solutions. Overall, the quantitative SAXS analysis confirmed that the individual PS particle systems were successfully prepared with spherical shape in a very narrow unimodal size distribution.
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Affiliation(s)
- Jia Chyi Wong
- Materials Science Program, School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia; (J.C.W.); (K.H.N.)
- Department of Chemistry, Polymer Research Institute, and Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 37673, Korea;
| | - Li Xiang
- Department of Chemistry, Polymer Research Institute, and Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 37673, Korea;
| | - Kuan Hoon Ngoi
- Materials Science Program, School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia; (J.C.W.); (K.H.N.)
- Department of Chemistry, Polymer Research Institute, and Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 37673, Korea;
| | - Chin Hua Chia
- Materials Science Program, School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia; (J.C.W.); (K.H.N.)
- Correspondence: (C.H.C.); (K.S.J.); (M.R.)
| | - Kyeong Sik Jin
- Pohang Accelerator Laboratory, Pohang University of Science & Technology, Pohang 37673, Korea
- Correspondence: (C.H.C.); (K.S.J.); (M.R.)
| | - Moonhor Ree
- Department of Chemistry, Polymer Research Institute, and Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 37673, Korea;
- Correspondence: (C.H.C.); (K.S.J.); (M.R.)
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247
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Narayanan T, Konovalov O. Synchrotron Scattering Methods for Nanomaterials and Soft Matter Research. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E752. [PMID: 32041363 PMCID: PMC7040635 DOI: 10.3390/ma13030752] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 01/29/2020] [Accepted: 01/31/2020] [Indexed: 12/17/2022]
Abstract
This article aims to provide an overview of broad range of applications of synchrotron scattering methods in the investigation of nanoscale materials. These scattering techniques allow the elucidation of the structure and dynamics of nanomaterials from sub-nm to micron size scales and down to sub-millisecond time ranges both in bulk and at interfaces. A major advantage of scattering methods is that they provide the ensemble averaged information under in situ and operando conditions. As a result, they are complementary to various imaging techniques which reveal more local information. Scattering methods are particularly suitable for probing buried structures that are difficult to image. Although, many qualitative features can be directly extracted from scattering data, derivation of detailed structural and dynamical information requires quantitative modeling. The fourth-generation synchrotron sources open new possibilities for investigating these complex systems by exploiting the enhanced brightness and coherence properties of X-rays.
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248
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Asgar H, Semeykina V, Hunt M, Mohammed S, Kuzmenko I, Zharov I, Gadikota G. Thermally-Induced morphological evolution of spherical silica nanoparticles using in-operando X-ray scattering measurements. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124260] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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249
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Khaykelson D, Raviv U. Studying viruses using solution X-ray scattering. Biophys Rev 2020; 12:41-48. [PMID: 32062837 PMCID: PMC7040123 DOI: 10.1007/s12551-020-00617-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 01/07/2020] [Indexed: 12/23/2022] Open
Abstract
Viruses have been of interest to mankind since their discovery as small infectious agents in the nineteenth century. Because many viruses cause diseases to humans and agriculture, they were rigorously studied for biological and medical purposes. Viruses have remarkable properties such as the symmetry and self-assembly of their protein envelope, maturation into infectious virions, structural stability, and disassembly. Solution X-ray scattering can probe structures and reactions in solutions, down to subnanometer spatial resolution and millisecond temporal resolution. It probes the bulk solution and reveals the average shape and average mass of particles in solution and can be used to study kinetics and thermodynamics of viruses at different stages of their life cycle. Here we review recent work that demonstrates the capabilities of solution X-ray scattering to study in vitro the viral life cycle.
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Affiliation(s)
- Daniel Khaykelson
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat Ram, Jerusalem, 9190401, Israel.
| | - Uri Raviv
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat Ram, Jerusalem, 9190401, Israel.
- Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat Ram, Jerusalem, 9190401, Israel.
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250
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Marichal L, Klein G, Armengaud J, Boulard Y, Chédin S, Labarre J, Pin S, Renault JP, Aude JC. Protein Corona Composition of Silica Nanoparticles in Complex Media: Nanoparticle Size does not Matter. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E240. [PMID: 32013169 PMCID: PMC7075126 DOI: 10.3390/nano10020240] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/17/2020] [Accepted: 01/22/2020] [Indexed: 12/30/2022]
Abstract
Biomolecules, and particularly proteins, bind on nanoparticle (NP) surfaces to form the so-called protein corona. It is accepted that the corona drives the biological distribution and toxicity of NPs. Here, the corona composition and structure were studied using silica nanoparticles (SiNPs) of different sizes interacting with soluble yeast protein extracts. Adsorption isotherms showed that the amount of adsorbed proteins varied greatly upon NP size with large NPs having more adsorbed proteins per surface unit. The protein corona composition was studied using a large-scale label-free proteomic approach, combined with statistical and regression analyses. Most of the proteins adsorbed on the NPs were the same, regardless of the size of the NPs. To go beyond, the protein physicochemical parameters relevant for the adsorption were studied: electrostatic interactions and disordered regions are the main driving forces for the adsorption on SiNPs but polypeptide sequence length seems to be an important factor as well. This article demonstrates that curvature effects exhibited using model proteins are not determining factors for the corona composition on SiNPs, when dealing with complex biological media.
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Affiliation(s)
- Laurent Marichal
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198 Gif-sur-Yvette, France; (G.K.); (Y.B.); (S.C.); (J.L.)
- Université Paris-Saclay, CEA, CNRS, NIMBE, Laboratoire Interdisciplinaire sur l’Organisation Nanométrique et Supramoléculaire, 91191 Gif-sur-Yvette, France; (S.P.); (J.-P.R.)
| | - Géraldine Klein
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198 Gif-sur-Yvette, France; (G.K.); (Y.B.); (S.C.); (J.L.)
- Université Paris-Saclay, CEA, CNRS, NIMBE, Laboratoire Interdisciplinaire sur l’Organisation Nanométrique et Supramoléculaire, 91191 Gif-sur-Yvette, France; (S.P.); (J.-P.R.)
- UMR Procédés Alimentaires et Microbiologiques, Equipe VAlMiS (Vin, Aliment, Microbiologie, Stress), Institut Universitaire de la Vigne et du Vin, AgroSup Dijon, Université de Bourgogne Franche-Comté, rue Claude Ladrey, BP 27877, 21000 Dijon, France
| | - Jean Armengaud
- Laboratoire Innovations technologiques pour la Détection et le Diagnostic (Li2D), Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA, 30207 Bagnols-sur-Cèze, France;
| | - Yves Boulard
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198 Gif-sur-Yvette, France; (G.K.); (Y.B.); (S.C.); (J.L.)
| | - Stéphane Chédin
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198 Gif-sur-Yvette, France; (G.K.); (Y.B.); (S.C.); (J.L.)
| | - Jean Labarre
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198 Gif-sur-Yvette, France; (G.K.); (Y.B.); (S.C.); (J.L.)
| | - Serge Pin
- Université Paris-Saclay, CEA, CNRS, NIMBE, Laboratoire Interdisciplinaire sur l’Organisation Nanométrique et Supramoléculaire, 91191 Gif-sur-Yvette, France; (S.P.); (J.-P.R.)
| | - Jean-Philippe Renault
- Université Paris-Saclay, CEA, CNRS, NIMBE, Laboratoire Interdisciplinaire sur l’Organisation Nanométrique et Supramoléculaire, 91191 Gif-sur-Yvette, France; (S.P.); (J.-P.R.)
| | - Jean-Christophe Aude
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198 Gif-sur-Yvette, France; (G.K.); (Y.B.); (S.C.); (J.L.)
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