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Lagowski M, Gouveia Z, Yang M, Finer Y, Santerre JP. Synthesis and challenges of fluorinated divinyl urethane monomers as a strategy for masking hydrolytic sensitive methacrylate groups in resin composites. Dent Mater 2024; 40:1624-1634. [PMID: 39084955 DOI: 10.1016/j.dental.2024.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 07/15/2024] [Accepted: 07/23/2024] [Indexed: 08/02/2024]
Abstract
OBJECTIVE The biodegradation of methacrylate (MA)-based dental restoratives has been suggested to contribute to a loss of adhesion and subsequent detachment, or secondary caries, both major causes of restoration failure. Previous studies have demonstrated that intermolecular interactions between resin monomers may affect the hydrolytic-susceptibility of composites. Altering the intermolecular interactions by shielding or masking the hydrolytically-susceptible ester groups found in MA monomers could be an effective strategy to mitigate the biodegradation of resin composites. The objective of this work was to assess whether shielding/masking MAs using fluorinated groups could improve the biostability of experimental composites. METHODS Eight fluorinated monomers (FM) were synthesized, characterized (1H NMR), and formulated into experimental resin composites (FC, 65 wt%, microfill). FCs were assessed for interactions with water (water contact angle, water sorption, gel fraction), mechanical properties (both compressive and flexural strength and modulus), cytocompatibility, resistance to biodegradation using simulated human salivary esterase (SHSE) and compared to a control composite (CC) without FM. RESULTS Integration of FMs was found to generally decrease both the physical and mechanical properties under all incubation conditions when compared to the CC. Additionally, all FCs had a negative influence on composite biodegradation following immersion in SHSE when compared to the CC. SIGNIFICANCE Shielding/masking MA-esters inherently inserts molecular spaces between the polymer chains within the resin network, and shielding is likely not possible while also maintaining the necessary cohesive forces that regulate the physical and mechanical properties of resin composites. Novel dental resin development should seek to remove/replace vulnerable ester-containing MAs rather that adopting a shielding/masking approach.
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Affiliation(s)
- Michael Lagowski
- Institute of Biomedical Engineering, University of Toronto, Ontario, Canada
| | - Zach Gouveia
- Faculty of Dentistry, University of Toronto, Canada
| | - Meilin Yang
- Faculty of Dentistry, University of Toronto, Canada
| | - Yoav Finer
- Institute of Biomedical Engineering, University of Toronto, Ontario, Canada; Faculty of Dentistry, University of Toronto, Canada.
| | - J Paul Santerre
- Institute of Biomedical Engineering, University of Toronto, Ontario, Canada; Faculty of Dentistry, University of Toronto, Canada; Translational Biology and Engineering Program, University of Toronto, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, Canada.
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2
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Yamaguchi M, Shimao H, Hamasaki K, Nishiwaki K, Kashimura S, Matsumoto K. gem-Difluorination of carbon-carbon triple bonds using Brønsted acid/Bu 4NBF 4 or electrogenerated acid. Beilstein J Org Chem 2024; 20:2261-2269. [PMID: 39286791 PMCID: PMC11403803 DOI: 10.3762/bjoc.20.194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 07/08/2024] [Indexed: 09/19/2024] Open
Abstract
gem-Difluorination of carbon-carbon triple bonds was conducted using Brønsted acids, such as Tf2NH and TfOH, combined with Bu4NBF4 as the fluorine source. The electrochemical oxidation of a Bu4NBF4/CH2Cl2 solution containing alkyne substrates could also give the corresponding gem-difluorinated compounds (in-cell method). The ex-cell electrolysis method was also applicable for gem-difluorination of alkynes.
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Affiliation(s)
- Mizuki Yamaguchi
- Department of Chemistry, School of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
| | - Hiroki Shimao
- Department of Chemistry, School of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
| | - Kengo Hamasaki
- Department of Chemistry, School of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
| | - Keiji Nishiwaki
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka, 577-8502, Japan
| | - Shigenori Kashimura
- Department of Chemistry, School of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
| | - Kouichi Matsumoto
- Department of Chemistry, School of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan
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Jung J, Park J, Choe JK, Choi Y. Perfluoroalkyl functionalized-Au nanoparticle sensor: Employing rate of spectrum shifting for highly selective and sensitive detection of per- and polyfluoroalkyl substances (PFASs) in aqueous environments. WATER RESEARCH X 2024; 24:100239. [PMID: 39193396 PMCID: PMC11347827 DOI: 10.1016/j.wroa.2024.100239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 07/15/2024] [Accepted: 07/17/2024] [Indexed: 08/29/2024]
Abstract
Per- and polyfluoroalkyl substances (PFASs) are emerging contaminants detected ubiquitously and have negative impacts on human health and ecosystem; thus, developing in-situ sensing technique is important to ensure safety. Herein, we report a novel colorimetric-based sensor with perfluoroalkyl receptor attached to citrate coated gold nanoparticles (Citrate-Au NPs) that can detect several PFASs including perfluorocarboxylates with different chain lengths (PFHxA, PFOA, PFNA, PFDA), perfluorooctanoic sulfonate (PFOS), and perfluorooctanoic phosphonate (PFOPA). The sensor detects PFASs utilizing fluorous interaction between PFASs and the perfluoroalkyl receptor of Citrate-Au NPs in a solution at a fixed salt concentration, inducing changes in nanoparticle dispersity and the solution color. The rate of spectrum shift was linearly dependent on PFASs concentrations. Citrate-Au NPs with size between 29 - 109 nm were synthesized by adjusting citrate/Au molar ratios, and 78 nm showed the best sensitivity to PFOA concentration (with level of detection of 4.96 µM). Citrate-Au NPs only interacted with PFASs with perfluoroalkyl length > 4 and not with non-fluorinated alkyl compound (nonanoic acid). The performance of Citrate-Au NP based sensor was strongly dependent on the chain length of the perfluoroalkyl group and the head functional group; higher sensitivity was observed with longer chain over shorter chain, and with sulfonate functional group over carboxylate and phosphonate. The sensor was tested using real water samples (i.e., tap water, filtered river water), and it was found that the sensor is capable of detecting PFASs in these conditions if calibrated with the corresponding water matrix. While further optimization is needed, this study demonstrated new capability of Citrate-Au NPs based sensor for detection of PFASs in water.
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Affiliation(s)
- Jihyeun Jung
- Department of Civil & Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Junyoung Park
- Department of Civil & Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
- Institute of Construction and Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jong Kwon Choe
- Department of Civil & Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
- Institute of Construction and Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Yongju Choi
- Department of Civil & Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
- Institute of Construction and Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
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4
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Araki T, Oka T, Shioya N, Hasegawa T. Molecular symmetry change of perfluoro-n-alkanes in 'Phase I' monitored by infrared spectroscopy. ANAL SCI 2024; 40:1723-1731. [PMID: 38874759 PMCID: PMC11358247 DOI: 10.1007/s44211-024-00611-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 05/23/2024] [Indexed: 06/15/2024]
Abstract
Phase diagram of polytetrafluoroethylene (PTFE) comprises four regions. Phases II and IV are characterized by twisted perfluoroalkyl (Rf) chains having different twisting rate of 13/6 and 15/7, respectively, while Phase III is characterized by a planer trans-zigzag molecular skeleton like a normal alkyl chain. These are confirmed by X-ray and electron diffraction and have already been established. Unlike these, Phase I is left an unresolved matter. This phase is complicated indeed and is not symbolized by a single molecular structure. At an ambient pressure, Phase I is the temperature region above 30 ºC (303 K), and the helical molecular structure is supposed to be gradually untwisted with an elevating temperature. This untwisting image is roughly suggested by the diffraction, neutron scattering, and thermal expansion techniques, but the conventional approaches have all experimental limitations because the untwisting accompanies disorder (or defect) in the twist along the chain. To explore the transition between two different helical structures of the Rf chain having disordered structures, vibrational spectroscopic techniques are expected to be an alternative approach. For infrared spectroscopy, for example, the twisting rate of the molecule is simply recognized as a degree of molecular symmetry. Here, we show that the band progression peaks of the CF2 symmetric stretching vibration mode are quite sensitive and useful for pursuing the molecular symmetry change in Phase I for both peak intensity and position using perfluoro-n-alkanes having different chain length covering both even and odd number of the CF2 groups.
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Affiliation(s)
- Taisuke Araki
- Laboratory of Chemistry for Functionalized Surfaces, Division of Environmental Chemistry, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Takayuki Oka
- Laboratory of Chemistry for Functionalized Surfaces, Division of Environmental Chemistry, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Nobutaka Shioya
- Laboratory of Chemistry for Functionalized Surfaces, Division of Environmental Chemistry, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Takeshi Hasegawa
- Laboratory of Chemistry for Functionalized Surfaces, Division of Environmental Chemistry, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan.
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Lyu Z, Ralahy B, Perles-Barbacaru TA, Ding L, Jiang Y, Lian B, Roussel T, Liu X, Galanakou C, Laurini E, Tintaru A, Giorgio S, Pricl S, Liu X, Bernard M, Iovanna J, Viola A, Peng L. Self-assembling dendrimer nanosystems for specific fluorine magnetic resonance imaging and effective theranostic treatment of tumors. Proc Natl Acad Sci U S A 2024; 121:e2322403121. [PMID: 38865273 PMCID: PMC11194563 DOI: 10.1073/pnas.2322403121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 05/13/2024] [Indexed: 06/14/2024] Open
Abstract
Fluorine magnetic resonance imaging (19F-MRI) is particularly promising for biomedical applications owing to the absence of fluorine in most biological systems. However, its use has been limited by the lack of safe and water-soluble imaging agents with high fluorine contents and suitable relaxation properties. We report innovative 19F-MRI agents based on supramolecular dendrimers self-assembled by an amphiphilic dendrimer composed of a hydrophobic alkyl chain and a hydrophilic dendron. Specifically, this amphiphilic dendrimer bears multiple negatively charged terminals with high fluorine content, which effectively prevented intra- and intermolecular aggregation of fluorinated entities via electrostatic repulsion. This permitted high fluorine nuclei mobility alongside good water solubility with favorable relaxation properties for use in 19F-MRI. Importantly, the self-assembling 19F-MRI agent was able to encapsulate the near-infrared fluorescence (NIRF) agent DiR and the anticancer drug paclitaxel for multimodal 19F-MRI and NIRF imaging of and theranostics for pancreatic cancer, a deadly disease for which there remains no adequate early detection method or efficacious treatment. The 19F-MRI and multimodal 19F-MRI and NIRF imaging studies on human pancreatic cancer xenografts in mice confirmed the capability of both imaging modalities to specifically image the tumors and demonstrated the efficacy of the theranostic agent in cancer treatment, largely outperforming the clinical anticancer drug paclitaxel. Consequently, these dendrimer nanosystems constitute promising 19F-MRI agents for effective cancer management. This study offers a broad avenue to the construction of 19F-MRI agents and theranostics, exploiting self-assembling supramolecular dendrimer chemistry.
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Affiliation(s)
- Zhenbin Lyu
- Aix Marseille University, CNRS, Centre Interdisciplinaire de Nanoscience de Marseille (UMR 7325), Equipe Labellisée Ligue Contre le Cancer, Marseille13288, France
- Aix Marseille University, CNRS, Institut de Chimie Radicalaire, UMR 7273, Marseille13013, France
| | - Brigino Ralahy
- Aix Marseille University, CNRS, Centre Interdisciplinaire de Nanoscience de Marseille (UMR 7325), Equipe Labellisée Ligue Contre le Cancer, Marseille13288, France
| | | | - Ling Ding
- Aix Marseille University, CNRS, Centre Interdisciplinaire de Nanoscience de Marseille (UMR 7325), Equipe Labellisée Ligue Contre le Cancer, Marseille13288, France
- Aix Marseille University, CNRS, Centre de Résonance Magnétique Biologique et Médicale, UMR 7339, Marseille13385, France
| | - Yifan Jiang
- Aix Marseille University, CNRS, Centre Interdisciplinaire de Nanoscience de Marseille (UMR 7325), Equipe Labellisée Ligue Contre le Cancer, Marseille13288, France
| | - Baoping Lian
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing211198, People’s Republic of China
| | - Tom Roussel
- Aix Marseille University, CNRS, Centre Interdisciplinaire de Nanoscience de Marseille (UMR 7325), Equipe Labellisée Ligue Contre le Cancer, Marseille13288, France
| | - Xi Liu
- Aix Marseille University, CNRS, Centre Interdisciplinaire de Nanoscience de Marseille (UMR 7325), Equipe Labellisée Ligue Contre le Cancer, Marseille13288, France
- Centre de Recherche en Cancérologie de Marseille, INSERM U1068, CNRS, UMR 7258, Institut Paoli-Calmettes, Aix Marseille Université, Marseille13273, France
| | - Christina Galanakou
- Aix Marseille University, CNRS, Centre Interdisciplinaire de Nanoscience de Marseille (UMR 7325), Equipe Labellisée Ligue Contre le Cancer, Marseille13288, France
| | - Erik Laurini
- Molecular Biology and Nanotechnology Laboratory, Department of Engineering and Architecture, University of Trieste, Trieste34127, Italy
| | - Aura Tintaru
- Aix Marseille University, CNRS, Institut de Chimie Radicalaire, UMR 7273, Marseille13013, France
| | - Suzanne Giorgio
- Aix Marseille University, CNRS, Centre Interdisciplinaire de Nanoscience de Marseille (UMR 7325), Equipe Labellisée Ligue Contre le Cancer, Marseille13288, France
| | - Sabrina Pricl
- Molecular Biology and Nanotechnology Laboratory, Department of Engineering and Architecture, University of Trieste, Trieste34127, Italy
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz90-236, Poland
| | - Xiaoxuan Liu
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing211198, People’s Republic of China
| | - Monique Bernard
- Aix Marseille University, CNRS, Centre de Résonance Magnétique Biologique et Médicale, UMR 7339, Marseille13385, France
| | - Juan Iovanna
- Centre de Recherche en Cancérologie de Marseille, INSERM U1068, CNRS, UMR 7258, Institut Paoli-Calmettes, Aix Marseille Université, Marseille13273, France
| | - Angèle Viola
- Aix Marseille University, CNRS, Centre de Résonance Magnétique Biologique et Médicale, UMR 7339, Marseille13385, France
| | - Ling Peng
- Aix Marseille University, CNRS, Centre Interdisciplinaire de Nanoscience de Marseille (UMR 7325), Equipe Labellisée Ligue Contre le Cancer, Marseille13288, France
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Heaton AR, Lechuga LM, Tangsangasaksri M, Ludwig KD, Fain SB, Mecozzi S. A stable, highly concentrated fluorous nanoemulsion formulation for in vivo cancer imaging via 19F-MRI. NMR IN BIOMEDICINE 2024; 37:e5100. [PMID: 38230415 PMCID: PMC10987282 DOI: 10.1002/nbm.5100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 01/18/2024]
Abstract
Magnetic resonance imaging (MRI) is a routine diagnostic modality in oncology that produces excellent imaging resolution and tumor contrast without the use of ionizing radiation. However, improved contrast agents are still needed to further increase detection sensitivity and avoid toxicity/allergic reactions associated with paramagnetic metal contrast agents, which may be seen in a small percentage of the human population. Fluorine-19 (19F)-MRI is at the forefront of the developing MRI methodologies due to near-zero background signal, high natural abundance of 100%, and unambiguous signal specificity. In this study, we have developed a colloidal nanoemulsion (NE) formulation that can encapsulate high volumes of the fluorous MRI tracer, perfluoro-[15-crown-5]-ether (PFCE) (35% v/v). These nanoparticles exhibit long-term (at least 100 days) stability and high PFCE loading capacity in formulation with our semifluorinated triblock copolymer, M2F8H18. With sizes of approximately 200 nm, these NEs enable in vivo delivery and passive targeting to tumors. Our diagnostic formulation, M2F8H18/PFCE NE, yielded in vivo 19F-MR images with a high signal-to-noise ratio up to 100 in a tumor-bearing mouse model at clinically relevant scan times. M2F8H18/PFCE NE circulated stably in the vasculature, accumulated in high concentration of an estimated 4-9 × 1017 19F spins/voxel at the tumor site, and cleared from most organs over the span of 2 weeks. Uptake by the mononuclear phagocyte system to the liver and spleen was also observed, most likely due to particle size. These promising results suggest that M2F8H18/PFCE NE is a favorable 19F-MR diagnostic tracer for further development in oncological studies and potential clinical translation.
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Affiliation(s)
- Alexa R. Heaton
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave Madison WI 53706, USA
| | - Lawrence M. Lechuga
- Department of Medical Physics, University of Wisconsin-Madison, 1111 Highland Ave Madison WI 53705, USA
| | | | - Kai D. Ludwig
- Department of Medical Physics, University of Wisconsin-Madison, 1111 Highland Ave Madison WI 53705, USA
| | - Sean B. Fain
- Department of Medical Physics, University of Wisconsin-Madison, 1111 Highland Ave Madison WI 53705, USA
- Department of Radiology, University of Iowa, 200 Hawkins Drive Iowa City IA 52242, USA
| | - Sandro Mecozzi
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave Madison WI 53706, USA
- School of Pharmacy, University of Wisconsin-Madison, 777 Highland Ave Madison WI 53705, USA
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Peychev B, Arabadzhieva D, Minkov IL, Mileva E, Slavchov RI. Quantifying the Hydrophobic Effect per CF 2 Moiety from Adsorption of Fluorinated Alcohols at the Water/Oil Interface. Molecules 2024; 29:1421. [PMID: 38611701 PMCID: PMC11154390 DOI: 10.3390/molecules29071421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024] Open
Abstract
Amphiphilic fluorocarbon substances are a trending topic of research due to their wide range of applications accompanied by an alarming environmental and health impact. In order to predict their fate in the environment, use them more economically, develop new water treatment methods, etc., a better understanding of their physicochemical behavior is required. Their hydrophobicity in water/oil systems is particularly sensitive to one key thermodynamic parameter: the free energy of transfer of a perfluoromethylene group from oil to water. However, for the -CF2- moiety, the transfer energy values reported in the literature vary by more than ±25%. Due to the exponential relationship between this energy and the adsorption constants or the partition coefficients, such an uncertainty can lead to orders of magnitude error in the predicted distribution of fluorinated species. We address this problem by presenting an experimental determination of the hydrophobic effect of a -CF2- moiety with a greater certainty than currently available. The transfer energy is determined by measuring the interfacial tension of water|hexane for aqueous solutions of short-chained fluorotelomer alcohols. The obtained results for the free energy of transfer of a -CF2- moiety from oil to water are 1.68±0.02×RT0, 1.75±0.02×RT0, and 1.88±0.02×RT0 at 288.15 K, 293.15 K, and 303.15 K, respectively.
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Affiliation(s)
- Boyan Peychev
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK;
| | - Dimitrinka Arabadzhieva
- Rostislaw Kaischew Institute of Physical Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 11, 1113 Sofia, Bulgaria; (D.A.); (I.L.M.); (E.M.)
| | - Ivan L. Minkov
- Rostislaw Kaischew Institute of Physical Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 11, 1113 Sofia, Bulgaria; (D.A.); (I.L.M.); (E.M.)
- Department of Chemistry, Biochemistry, Physiology, and Pathophysiology, Faculty of Medicine, Sofia University, 1 Koziak Str., 1407 Sofia, Bulgaria
| | - Elena Mileva
- Rostislaw Kaischew Institute of Physical Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 11, 1113 Sofia, Bulgaria; (D.A.); (I.L.M.); (E.M.)
| | - Radomir I. Slavchov
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK;
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8
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Miyazaki M, Arisaka C, Nakagawara A, Sasaki N, Takahashi H, Takagi T, Amii H, Sonoyama M. Thermodynamic study on hydrated bilayers of ether-linked phosphatidylcholines with terminal perfluorobutyl group. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2024; 1866:184261. [PMID: 38101595 DOI: 10.1016/j.bbamem.2023.184261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 11/01/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023]
Abstract
Novel terminally perfluorobutyl group-containing ether-linked phosphatidylcholines with different alkyl chain lengths (di-O-F4-Cn-PCs, n = 14,16 and 18) were developed as possible materials for stable liposomes aiming at applications of structural and functional analyses of membrane proteins. Differential scanning calorimetric investigations of the thermotropic transition of hydrated di-O-F4-Cn-PC bilayers demonstrated that the transition temperature of every di-O-F4-Cn-PC decreases by ~20 °C compared to their corresponding non-fluorinated PCs, di-O-Cn-PCs. With the elongation of the hydrophobic chain, on the other hand, the transition enthalpy (ΔH) and entropy (ΔS) increased in a linear manner. Comparison of ΔH and ΔS values against the net hydrocarbon chain length between di-O-F4-Cn-PCs and di-O-Cn-PCs strongly suggests that in the thermotropic transition of the di-O-F4-Cn-PC membrane, the perfluorobutyl segments undergo very limited structural changes; therefore, the hydrocarbon segments are mainly responsible for the phase transition.
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Affiliation(s)
- Masaya Miyazaki
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Chika Arisaka
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Ai Nakagawara
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Nanako Sasaki
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Hiroshi Takahashi
- Division of Pure and Applied Science, Graduate School of Science and Technology, Gunma University, Maebashi, Gunma 371-8510, Japan.
| | - Toshiyuki Takagi
- Cellular and Molecular Biotechnology Research Institute, AIST, Tsukuba, Ibaraki 305-8565, Japan.
| | - Hideki Amii
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan; Gunma University Initiative for Advanced Research (GIAR), Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Masashi Sonoyama
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan; Gunma University Initiative for Advanced Research (GIAR), Gunma University, Kiryu, Gunma 376-8515, Japan; Gunma University Center for Food Science and Wellness (GUCFW), Gunma University, Kiryu, Gunma 376-8515, Japan.
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9
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Silva P, Silva GMC, Morgado P, Fauré MC, Goldmann M, Filipe EJM. Origin of the central pit in hemimicelles of semifluorinated alkanes: How molecular dipoles and substrate deformation can determine supra-molecular morphology. J Colloid Interface Sci 2024; 655:576-583. [PMID: 37956545 DOI: 10.1016/j.jcis.2023.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 10/26/2023] [Accepted: 11/01/2023] [Indexed: 11/15/2023]
Abstract
HYPOTHESIS Semifluorinated alkanes amphiphiles spontaneously form highly monodispersed hemimicelles at the surface of water. The origin of the formation and complex structure of these surprising supramolecular aggregates were only recently clarified using molecular dynamics simulations (MD). The existence of a pit at the center of these aggregates made up of almost 3000 molecules was indeed reproduced by the MD simulations, but not understood. METHOD A careful strategy of atomistic MD simulations comparing non-electrostatic force fields with force fields that include electrostatic forces, thus bearing an implicit or explicit dipole, allowed demonstrating the roles of dipolar interactions and interactions with the liquid subphase on the morphology of the aggregates. FINDINGS The simulation results clearly show that within the hemimicelles the strong molecular dipoles located at the CH2-CF2 junctions tend to align, leading to a collective shift of the PFAA molecules relatively to each other. This shift is responsible for the curvature of the hemimicelles and originates the central pit, provided the possibility of deforming the surface of the water sub-phase. Comparisons with non-electrostatic force field results further contribute to understand the origin of the self-assembling process. The results directly connect for the first time a molecular property with a mesoscopic structural feature. Given the molecular simplicity of these "primitive" amphiphiles compared to the common hydrophilic/hydrophobic surfactants, the results contribute to understand self-assembly in general.
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Affiliation(s)
- Pedro Silva
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; Sorbonne Université, Institut des NanoSciences de Paris, CNRS-UMR 7588, 4 place Jussieu, 75005 Paris, France
| | - Gonçalo M C Silva
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - Pedro Morgado
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - Marie-Claude Fauré
- Sorbonne Université, Institut des NanoSciences de Paris, CNRS-UMR 7588, 4 place Jussieu, 75005 Paris, France; Université Paris Cité, UFR des Sciences Fondamentales et Biomédicales, 45 Rue de Saints-Pères, 75006 Paris, France
| | - Michel Goldmann
- Sorbonne Université, Institut des NanoSciences de Paris, CNRS-UMR 7588, 4 place Jussieu, 75005 Paris, France; Université Paris Cité, UFR des Sciences Fondamentales et Biomédicales, 45 Rue de Saints-Pères, 75006 Paris, France; Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin BP48, 91192 Gif-Sur-Yvette, France
| | - Eduardo J M Filipe
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal.
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10
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Gabrielli L, Goldin L, Chandrabhas S, Dalla Valle A, Prins LJ. Chemical Information Processing by a Responsive Chemical System. J Am Chem Soc 2024; 146:2080-2088. [PMID: 38214581 PMCID: PMC10811666 DOI: 10.1021/jacs.3c11414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 12/05/2023] [Accepted: 12/22/2023] [Indexed: 01/13/2024]
Abstract
Nature has an extraordinary capacity to precisely regulate the chemical reactivity in a highly complex mixture of molecules that is present in the cell. External stimuli lead to transient up- and downregulation of chemical reactions and provide a means for a cell to process information arriving from the environment. The development of synthetic chemical systems with life-like properties requires strategies that allow likewise control over chemical reactivity in a complex environment. Here, we show a synthetic system that mimics the initial steps that take place when a natural signal transduction pathway is activated. Monophosphate nucleosides act as chemical triggers for the self-assembly of nanoreactors that upregulate chemical reactions between reagents present at low micromolar concentrations. Different nucleotides template different assemblies and hence activate different pathways, thus establishing a distinct connection between input and output molecules. Trigger-induced upregulation of chemical reactivity occurs for only a limited amount of time because the chemical triggers are gradually removed from the system by enzymes. It is shown that the same system transiently produces different output molecules depending on the chemical input that is provided.
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Affiliation(s)
- Luca Gabrielli
- Department of Chemical Sciences, University of Padova, via F. Marzolo 1, Padova 35131, Italy
| | - Lorenzo Goldin
- Department of Chemical Sciences, University of Padova, via F. Marzolo 1, Padova 35131, Italy
| | - Sushmitha Chandrabhas
- Department of Chemical Sciences, University of Padova, via F. Marzolo 1, Padova 35131, Italy
| | - Andrea Dalla Valle
- Department of Chemical Sciences, University of Padova, via F. Marzolo 1, Padova 35131, Italy
| | - Leonard J. Prins
- Department of Chemical Sciences, University of Padova, via F. Marzolo 1, Padova 35131, Italy
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11
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Murata C, Nakashuku A, Shichibu Y, Konishi K. Collective Effects of Multiple Fluorine Atoms Causing π-philic Characteristic within a Caged Polyoxometalate Framework. Chemistry 2024; 30:e202302328. [PMID: 37974320 DOI: 10.1002/chem.202302328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 11/16/2023] [Accepted: 11/16/2023] [Indexed: 11/19/2023]
Abstract
Perfluorination brings about distinctive properties arising from the unusual nature of the F element, which have been extensively developed in materials science and chemistry. Herein we report that the construction of F-rich inner space within a hollowed Mo132 O372 cage ([Mo132 O372 (OCOR)30 (H2 O)72 ]42- ) leads to the emergence of unique guest binding activities in encapsulation. Prominently, the trifluoroacetate-modified cage (R=CF3 , 2) having as many as 90 F groups inside favors trapping cyclopentadiene (Cp), which is hardly trapped by the non-fluorinated counterpart (R=CH3 , 1). Systematic studies using related hydrocarbons show that the amount of the encapsulated guest is correlated with the unsaturation degree of the guests, implying the involvement of the attractive interaction of the CF3 -modified interior wall with the guest π-electron clouds. Control experiments using the semi-fluorinated analogues (R=CF2 H, CFH2 ) reveal that the perfluorination is a critical factor to facilitate the Cp encapsulation by 2, indicating that collective effects of polar C-F bonds spreading over the interior surface, rather than the polarity of the individual C-F bonds, are responsible. We also provide a successful example of the physical molecular confinement within the cage through the "ship-in-a-bottle" Diels-Alder reaction between trapped diene and dienophile.
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Affiliation(s)
- Chinatsu Murata
- Graduate School of Environmental Science, Hokkaido University, North 10 West 5, 060-0810, Sapporo, Japan
| | - Akari Nakashuku
- Graduate School of Environmental Science, Hokkaido University, North 10 West 5, 060-0810, Sapporo, Japan
| | - Yukatsu Shichibu
- Graduate School of Environmental Science, Hokkaido University, North 10 West 5, 060-0810, Sapporo, Japan
- Faculty of Environmental Science, Hokkaido University, North 10 West 5, 060-0810, Sapporo, Japan
| | - Katsuaki Konishi
- Graduate School of Environmental Science, Hokkaido University, North 10 West 5, 060-0810, Sapporo, Japan
- Faculty of Environmental Science, Hokkaido University, North 10 West 5, 060-0810, Sapporo, Japan
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12
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Liu N, Gao P, Lu HY, Fang L, Nicolas J, Ha-Duong T, Shen JS. Polyfluoroalkyl Chain-Based Assemblies for Biomimetic Catalysis. Chemistry 2024; 30:e202302669. [PMID: 37823686 DOI: 10.1002/chem.202302669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/06/2023] [Accepted: 10/12/2023] [Indexed: 10/13/2023]
Abstract
Amphiphobic fluoroalkyl chains are exploited for creating robust and diverse self-assembled biomimetic catalysts. Long terminal perfluoroalkyl chains (Cn F2n+1 with n=6, 8, and 10) linked with a short perhydroalkyl chains (Cm H2m with m=2 and 3) were used to synthesize several 1,4,7-triazacyclononane (TACN) derivatives, Cn F2n+1 -Cm H2m -TACN. In the presence of an equimolar amount of Zn2+ ions that coordinate the TACN moiety and drive the self-assembly into micelle-like aggregates, the critical aggregation concentration of polyfluorinated Cn F2n+1 -Cm H2m -TACN⋅Zn2+ was lowered by ∼1 order of magnitude compared to the traditional perhyroalkyl counterpart with identical carbon number of alkyl chain. When 2'-hydroxypropyl-4-nitrophenyl phosphate was used as the model phosphate substrate, polyfluorinated Cn F2n+1 -Cm H2m -TACN⋅Zn2+ assemblies showed higher affinity and catalytic activity, compared to its perhyroalkyl chain-based counterpart. Coarse-grained molecular dynamic simulations have been introduced to explore the supramolecular assembly of polyfluoroalkyl chains in the presence of Zn2+ ions and to better understand their enhanced catalytic activity.
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Affiliation(s)
- Ning Liu
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Ping Gao
- Institut Galien Paris-Saclay, Université Paris-Saclay, CNRS, Orsay, 91400, France
- BioCIS, Université Paris-Saclay, CNRS, Orsay, 91400, France
| | - Hai-Yan Lu
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Lei Fang
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Julien Nicolas
- Institut Galien Paris-Saclay, Université Paris-Saclay, CNRS, Orsay, 91400, France
| | - Tâp Ha-Duong
- BioCIS, Université Paris-Saclay, CNRS, Orsay, 91400, France
| | - Jiang-Shan Shen
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
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13
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Leung SCE, Wanninayake D, Chen D, Nguyen NT, Li Q. Physicochemical properties and interactions of perfluoroalkyl substances (PFAS) - Challenges and opportunities in sensing and remediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:166764. [PMID: 37660805 DOI: 10.1016/j.scitotenv.2023.166764] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 08/16/2023] [Accepted: 08/31/2023] [Indexed: 09/05/2023]
Abstract
Per- and polyfluoroalkyl substances (PFAS) is a class of persistent organic pollutants that presents health and environmental risks. PFAS are ubiquitously present in the environment, but current remediation technologies are ineffective in degrading them into innocuous chemicals, especially high energy degradation processes often generate toxic short chain intermediates. Therefore, the best remediation strategy is to first detect the source of pollution, followed by capturing and mineralising or recycling of the compounds. The main objective of this article is to summarise the unique physicochemical properties and to critically review the intermolecular and intramolecular physicochemical interactions of PFAS, and how these interactions can become obstacles; and at the same time, how they can be applied to the PFAS sensing, capturing, and recycling process. The physicochemical interactions of PFAS chemicals are being reviewed in this paper includes, (1) fluorophilic interactions, (2) hydrophobic interactions, (3) electrostatic interactions and cation bridging, (4) ionic exchange and (5) hydrogen bond. Moreover, all the different influential factors to these interactions have also been reported. Finally, properties of these interactions are compared against one another, and the recommendations for future designs of affinity materials for PFAS have been given.
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Affiliation(s)
- Shui Cheung Edgar Leung
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, QLD 4111, Australia; School of Engineering and Built Environment, Griffith University, Nathan, QLD 4111, Australia
| | - Dushanthi Wanninayake
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, QLD 4111, Australia; School of Engineering and Built Environment, Griffith University, Nathan, QLD 4111, Australia
| | - Dechao Chen
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, QLD 4111, Australia
| | - Nam-Trung Nguyen
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, QLD 4111, Australia
| | - Qin Li
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, QLD 4111, Australia; School of Engineering and Built Environment, Griffith University, Nathan, QLD 4111, Australia.
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14
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Zhang J, Pei R, Tan J, Ni Z, Ye S, Luo Y. Visualizing Water Monomers and Chiral OH -(H 2O) Complexes Infiltrated in a Macroscopic Hydrophobic Teflon Matrix. J Am Chem Soc 2023. [PMID: 38048434 DOI: 10.1021/jacs.3c09950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
Insights into the interaction of fluoroalkyl groups with water are crucial to understanding the polar hydrophobicity of fluorinated compounds, such as Teflon. While an ordered hydrophobic-like 2D water layer has been demonstrated to be present on the surface of macroscopically hydrophobic fluorinated polymers, little is known about how the water infiltrates into the Teflon and what is the molecular structure of the water infiltrated into the Teflon. Using highly sensitive femtosecond sum frequency generation vibrational spectroscopy (SFG-VS), we observe for the first time that monomeric H2O and chiral OH-(H2O) complexes are present in macroscopically hydrophobic Teflon. The species are inhomogeneously distributed inside the Teflon matrix and at the Teflon surface. No water clusters or single-file water "wires" are observed in the matrix. SFG free induction decay (SFG-FID) experiments demonstrate that the OH oscillators of physically absorbed molecular water at the surface dephase on the time scale of <230 fs, whereas the water monomers and hydrated hydroxide ions infiltrated in the Teflon matrix dephase much more slowly (680-830 fs), indicating that the embedded monomeric H2O and OH-(H2O) complexes are decoupled from the outer environment. Our findings can well interpret ultrafast water permeation through fluorous nanochannels and the charging mechanism of Teflon, which may tailor the desired applications of organofluorines.
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Affiliation(s)
- Jiahui Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Ruoqi Pei
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Junjun Tan
- Hefei National Laboratory, University of Science and Technology of China, Hefei, Anhui 230088, China
| | - Zijian Ni
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Shuji Ye
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
- Hefei National Laboratory, University of Science and Technology of China, Hefei, Anhui 230088, China
| | - Yi Luo
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
- Hefei National Laboratory, University of Science and Technology of China, Hefei, Anhui 230088, China
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15
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Yu X, Yu X, Lin Y, Li H, Li G, Zong R. Comparative Study on Interfacial Properties, Foam Stability, and Firefighting Performance of C6 Fluorocarbon Surfactants with Different Hydrophilic Groups. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:16336-16348. [PMID: 37948692 DOI: 10.1021/acs.langmuir.3c01980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Liquid fuel is flammable and hazardous, and a pool fire is one of the most serious disasters. Therefore, it is important to develop high-performance firefighting agents. To synthesize aqueous film-forming foam (AFFF) formulations, two C6 short-chain fluorocarbon surfactants Capstone 1157 (FC1157) and sodium perfluorohexylethyl sulfonate (SF852) with different hydrophilic groups were introduced, and three hydrocarbon surfactants sodium dodecyl sulfate (SDS), decyl glucoside (APG0810), and coco glucoside (APG0814) were chosen. The AFFF formulations based on the short-chain fluorocarbon-hydrocarbon compounding system were developed, and the firefighting performance of the formulations was assessed according to the standard pool fire extinction test. The results indicated that amphoteric FC1157 was slightly more effective than anionic SF852 in extinguishing small-scale pool fires and could reduce heat flux more effectively than SF852. Fluorocarbon surfactant FC1157 has been shown to suppress large pool fires much better than SF852, possibly due to its higher foam stability, higher foaming property, lower dynamic surface tension, and lower bubble coarsening rate. Both formulations we studied were more effective than commercial AFFF formulations. A concentration of 0.1-0.3% of FC1157 in an AFFF solution was optimal for extinguishing high-boiling-point oil fires.
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Affiliation(s)
- Xiao Yu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
- Suzhou Key Laboratory of Urban Public Safety, Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
| | - Xiaoyang Yu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
- Suzhou Key Laboratory of Urban Public Safety, Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
| | - Yunru Lin
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
- Suzhou Key Laboratory of Urban Public Safety, Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
| | - Huan Li
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
| | - Guangying Li
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
- Suzhou Key Laboratory of Urban Public Safety, Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
| | - Ruowen Zong
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
- Suzhou Key Laboratory of Urban Public Safety, Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
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16
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Zhou MM, He J, Pan HM, Zeng Q, Lin H, Zhao KQ, Hu P, Wang BQ, Donnio B. Induction and Stabilization of Columnar Mesophases in Fluorinated Polycyclic Aromatic Hydrocarbons by Arene-Perfluoroarene Interactions. Chemistry 2023; 29:e202301829. [PMID: 37452614 DOI: 10.1002/chem.202301829] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/06/2023] [Accepted: 07/08/2023] [Indexed: 07/18/2023]
Abstract
The straightforward synthesis of several Fluorinated Polycyclic Aromatic Hydrocarbons by the efficient, transition-metal-free, arene fluorine nucleophilic substitution reaction is described, and the full investigation of their liquid crystalline and optical properties reported. The key precursors for this study, i. e. 2,2'-dilithio-4,4',5,5'-tetraalkoxy-1,1'-biphenyl derivatives, were obtained in two steps from the highly selective Scholl oxidative homo-coupling of 3,4-dialkoxy-1-bromobenzene, followed by quantitative double-lithiation. In situ room temperature nucleophilic annulation with either perfluorobenzene or perfluoronaphthalene leads to 1,2,3,4-tetrafluoro-6,7,10,11-tetraalkxoytriphenylenes and 9,10,11,12,13,14-hexafluoro-2,3,6,7-tetraalkoxybenzo[f]tetraphenes, respectively, in good yields. Exploiting the same strategy, subsequent double annulations resulted in the formation of 9,18-difluoro-2,3,6,7,11,12,15,16-octa(alkoxy)tribenzo[f,k,m]tetraphenes and 9,10,19,20-tetrafluoro-2,3,6,7,12,13,16,17-octakis(hexyloxy)tetrabenzo[a,c,j,l]tetracenes, respectively. Despite the presence of only four alkoxy chains, the polar "Janus" mesogens display a columnar hexagonal mesophase over broad temperature ranges, with higher mesophase stability than the archetypical 2,3,6,7,10,11-hexa(alkoxy)triphenylenes and their hydrogenated counterparts. The improvement or induction of mesomorphism is attributed to efficient antiparallel face-to-face π-stacking driven by the establishment of non-covalent perfluoroarene-arene intermolecular interactions. The larger lipophilic discotic π-extended compounds also exhibit columnar mesomorphism, over similar temperature ranges and stability than their hydrogenated homologs. Finally, these fluorinated molecules form stringy gels in various solvents, and show interesting solvatochromic emission properties in solution as well as strong emission in thin films and gels.
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Affiliation(s)
- Ming-Mei Zhou
- College of Chemistry and Materials Science, Sichuan Normal University, 610066, Chengdu, China
| | - Jiao He
- College of Chemistry and Materials Science, Sichuan Normal University, 610066, Chengdu, China
| | - Hui-Min Pan
- College of Chemistry and Materials Science, Sichuan Normal University, 610066, Chengdu, China
| | - Qing Zeng
- College of Chemistry and Materials Science, Sichuan Normal University, 610066, Chengdu, China
| | - Hang Lin
- College of Chemistry and Materials Science, Sichuan Normal University, 610066, Chengdu, China
| | - Ke-Qing Zhao
- College of Chemistry and Materials Science, Sichuan Normal University, 610066, Chengdu, China
| | - Ping Hu
- College of Chemistry and Materials Science, Sichuan Normal University, 610066, Chengdu, China
| | - Bi-Qin Wang
- College of Chemistry and Materials Science, Sichuan Normal University, 610066, Chengdu, China
| | - Bertrand Donnio
- Institut de Physique et Chimie de Strasbourg, CNRS-Université de Strasbourg (UMR7504), 67000, Strasbourg, France
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17
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Krafft MP, Riess JG. About Perfluoropolyhedranes, Their Electron-Accepting Ability and Questionable Supramolecular Hosting Capacity. Angew Chem Int Ed Engl 2023; 62:e202302942. [PMID: 37208990 DOI: 10.1002/anie.202302942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/16/2023] [Accepted: 05/17/2023] [Indexed: 05/21/2023]
Abstract
Polyhedral molecules are appealing for their eye-catching architecture and distinctive chemistry. Perfluorination of such, often greatly strained, compounds is a momentous challenge. It drastically changes the electron distribution, structure and properties. Notably, small high-symmetry perfluoropolyhedranes feature a centrally located, star-shaped low-energy unoccupied molecular orbital that can host an extra electron within the polyhedral frame, thus producing a radical anion, without loss of symmetry. This predicted electron-hosting capacity was definitively established for perfluorocubane, the first perfluorinated Platonic polyhedrane to be isolated pure. Hosting atoms, molecules, or ions in such "cage" structures is, however, all but forthright, if not illusionary, offering no easy access to supramolecular constructs. While adamantane and cubane have fostered numerous applications in materials science, medicine, and biology, specific uses for their perfluorinated counterparts remain to be established. Some aspects of highly fluorinated carbon allotropes, such as fullerenes and graphite, are briefly mentioned for context.
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Affiliation(s)
- Marie Pierre Krafft
- Institut Charles Sadron (CNRS), University of Strasbourg, 23 rue du Loess., 67034, Strasbourg Cedex, France
| | - Jean G Riess
- Harangoutte Institute, 68160, Ste-Croix-aux-Mines, France
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18
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Vo PH, Key TA, Le TH, McDonough JT, Porman S, Fiorenza S, Nguyen HT, Dao VT, Mueller JF, Thai PK. Evaluation of sealants to mitigate the release of per- and polyfluoroalkyl substances (PFAS) from AFFF-impacted concrete: Characterization and forecasting. WATER RESEARCH X 2023; 20:100195. [PMID: 37637861 PMCID: PMC10448196 DOI: 10.1016/j.wroa.2023.100195] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 08/06/2023] [Accepted: 08/07/2023] [Indexed: 08/29/2023]
Abstract
Per- and polyfluoroalkyl substances (PFAS) within concrete pads impacted by historical firefighting training using aqueous film-forming foam (AFFF) may be potential secondary sources of PFAS due to surficial leaching. This study aimed to (i) characterize the effectiveness of two commercially available sealants (Product A and Product B) in mitigating leaching of five PFAS (e.g., PFOS, PFOA, PFHxS, PFHxA, 6:2 FTS) from concrete surfaces at the laboratory-scale, and (ii) develop a model to forecast cumulative leaching of the same five PFAS over 20 years from sealed and unsealed concrete surfaces. Laboratory trials demonstrated that both sealants reduced the surficial leaching of the five PFAS studied, and Product B demonstrated a comparatively greater reduction in surface leaching than Product A as measured against unsealed controls. The cumulative PFOS leaching from an unsealed concrete surface is estimated by the model to be about 400 mg/m2 over 20 years and reached asymptotic conditions after 15 years. In contrast, the model output suggests asymptotic conditions were not achieved within the modeled time of 20 years after sealing with Product A and 85% of PFOS was predicted to have leached (∼340 mg/m2). Negligible leaching of PFOS after sealing with Product B was observed ( < 5 × 10-9 mg/m2). Results from modeled rainfall scenarios suggest PFAS leachability is reduced from sealed versus unsealed AFFF-impacted concrete surfaces.
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Affiliation(s)
- Phong H.N. Vo
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, Queensland, 4102, Australia
- Climate Change Cluster, Faculty of Science, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia
| | - Trent A. Key
- ExxonMobil Environmental and Property Solutions Company, Spring, TX 77389, USA
- ExxonMobil Biomedical Sciences Inc., Spring, TX 77389, USA
| | - Tu Hoang Le
- Nong Lam University Ho Chi Minh city, Ho Chi Minh City, Vietnam
| | | | - Scott Porman
- Mobil Oil Australia, Melbourne, VIC 3008, Australia
| | | | - Hong T.M. Nguyen
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, Queensland, 4102, Australia
| | - Vinh T.N. Dao
- School of Civil Engineering, The University of Queensland, Queensland, 4102, Australia
| | - Jochen F. Mueller
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, Queensland, 4102, Australia
| | - Phong K. Thai
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, Queensland, 4102, Australia
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19
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Yan B, Liu J. Molecular framework for designing Fluoroclay with enhanced affinity for per- and polyfluoroalkyl substances. WATER RESEARCH X 2023; 19:100175. [PMID: 36950253 PMCID: PMC10026042 DOI: 10.1016/j.wroa.2023.100175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
Motivated by the need for enhancing sorbent affinity for per- and polyfluoroalkyl substances (PFAS), we demonstrate the possibility of rationally designing clay-based material (FluoroClay) with a pre-selected intercalant and predicting sorbent performance using all-atom molecular dynamics simulation coupled with density functional theory-based computation. Perfluorohexyldodecane quaternary ammonium (F6H12A) as the selected intercalant revealed significant enhancement in adsorption affinity for hard-to-remove compounds, including perfluorobutane sulfonate (PFBS) and polyfluoroalkylethers (GenX and ADONA). The adsorption is thermodynamically entropy-driven and dominated by the hydrophobic effect. The incorporation of fluorine atoms into clay intercalants gave rise to a hydrophobic and fluorophilic "cavity" structure for targeted PFAS. The self-assembly of intercalant-PFAS under the negative electric field of clay sheets created a unique configuration that significantly enlarged the contact surface area between PFAS and F6H12A and was quantitatively driven by their intermolecular interactions, e.g., CF chain-CH chain, CF chain-CF chain, and charge-CH chain interactions. Collectively, our work demonstrated a new approach to select fluorinated functionality for designing a new adsorbent and estimating its performance via molecular simulation. It also provided an in-depth understanding of the underlying fundamental physics and chemistry in the adsorption of PFAS, suggesting a new strategy for PFAS removal, particularly for short-chain PFAS and new chemical alternatives.
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Affiliation(s)
- Bei Yan
- Department of Civil Engineering, McGill University, 817 Sherbrooke Street West, Montreal, Quebec H3A 0C3, Canada
| | - Jinxia Liu
- Department of Civil Engineering, McGill University, 817 Sherbrooke Street West, Montreal, Quebec H3A 0C3, Canada
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20
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Wang H, Li X, Wang J, Wang J, Zou H, Hu X, Yang L, Shen P, A R, Wang K, Li Y, Yang J, Wang K, Yang L, Wu L, Sun X. Alveolar Macrophages-Mediated Translocation of Intratracheally Delivered Perfluorocarbon Nanoparticles to Achieve Lung Cancer 19F-MR Imaging. NANO LETTERS 2023; 23:2964-2973. [PMID: 36947431 DOI: 10.1021/acs.nanolett.3c00354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Recent advances in intratracheal delivery strategies have sparked considerable biomedical interest in developing this promising approach for lung cancer diagnosis and treatment. However, there are very few relevant studies on the behavior and mechanism of imaging nanoparticles (NPs) after intratracheal delivery. Here, we found that nanosized perfluoro-15-crown-5-ether (PFCE NPs, ∼200 nm) exhibite significant 19F-MRI signal-to-noise ratio (SNR) enhancement than perfluorooctyl bromide (PFOB NPs) up to day 7 after intratracheal delivery. Alveolar macrophages (AMs) engulf PFCE NPs, become PFCE NPs-laden AMs, and then migrate into the tumor margin, resulting in increased tumor PFCE concentration and 19F-MRI signals. AMs-mediated translocation of PFCE NPs to lung draning lymph nodes (dLNs) decreases the background PFCE concentration. Our results shed light on the dynamic AMs-mediated translocation of intratracheally delivered PFC NPs for effective lung tumor visualization and reveal a pathway to develop and promote the clinical translation of an intratracheal delivery-based imaging strategy.
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Affiliation(s)
- Hongbin Wang
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
| | - Xiaona Li
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
| | - Jing Wang
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
| | - Jiannan Wang
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
| | - Hongyan Zou
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
| | - Xuesong Hu
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
| | - Linqing Yang
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
| | - Penghui Shen
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
| | - Rong A
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
| | - Kaiqi Wang
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
| | - Yingbo Li
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
| | - Jie Yang
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
| | - Kai Wang
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
| | - Lili Yang
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
| | - Lina Wu
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
| | - Xilin Sun
- Department of Nuclear Medicine, The Fourth Hospital of Harbin Medical University, Harbin 150028, China
- NHC Key Laboratory of Molecular Probe and Targeted Diagnosis and Therapy, Molecular Imaging Research Center (MIRC), Harbin Medical University, Harbin 150028, China
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21
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Tsagogiorgas C, Otto M. Semifluorinated Alkanes as New Drug Carriers-An Overview of Potential Medical and Clinical Applications. Pharmaceutics 2023; 15:pharmaceutics15041211. [PMID: 37111696 PMCID: PMC10146824 DOI: 10.3390/pharmaceutics15041211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 04/29/2023] Open
Abstract
Fluorinated compounds have been used in clinical and biomedical applications for years. The newer class of semifluorinated alkanes (SFAs) has very interesting physicochemical properties including high gas solubility (e.g., for oxygen) and low surface tensions, such as the well-known perfluorocarbons (PFC). Due to their high propensity to assemble to interfaces, they can be used to formulate a variety of multiphase colloidal systems, including direct and reverse fluorocarbon emulsions, microbubbles and nanoemulsions, gels, dispersions, suspensions and aerosols. In addition, SFAs can dissolve lipophilic drugs and thus be used as new drug carriers or in new formulations. In vitreoretinal surgery and as eye drops, SFAs have become part of daily clinical practice. This review provides brief background information on the fluorinated compounds used in medicine and discusses the physicochemical properties and biocompatibility of SFAs. The clinically established use in vitreoretinal surgery and new developments in drug delivery as eye drops are described. The potential clinical applications for oxygen transport by SFAs as pure fluids into the lungs or as intravenous applications of SFA emulsions are presented. Finally, aspects of drug delivery with SFAs as topical, oral, intravenous (systemic) and pulmonary applications as well as protein delivery are covered. This manuscript provides an overview of the (potential) medical applications of semifluorinated alkanes. The databases of PubMed and Medline were searched until January 2023.
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Affiliation(s)
- Charalambos Tsagogiorgas
- Department of Anaesthesiology and Critical Care Medicine, University Medical Center Mannheim, Medical Faculty Mannheim, University of Heidelberg, 68167 Mannheim, Germany
- Department of Anaesthesiology and Critical Care Medicine, St. Elisabethen-Krankenhaus, Teaching Hospital of the University of Frankfurt, 60487 Frankfurt, Germany
| | - Matthias Otto
- Department of Anaesthesiology and Critical Care Medicine, University Medical Center Mannheim, Medical Faculty Mannheim, University of Heidelberg, 68167 Mannheim, Germany
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22
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Gong L, Wu F, Yang W, Huang C, Li W, Wang X, Wang J, Tang T, Zeng H. Unraveling the hydrophobic interaction mechanisms of hydrocarbon and fluorinated surfaces. J Colloid Interface Sci 2023; 635:273-283. [PMID: 36587579 DOI: 10.1016/j.jcis.2022.12.084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/15/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
HYPOTHESIS Numerous hydrocarbon and fluorine-based hydrophobic surfaces have been widely applied in various engineering and bioengineering fields. It is hypothesized that the hydrophobic interactions of hydrocarbon and fluorinated surfaces in aqueous media would show some differences. EXPERIMENTS The hydrophobic interactions of hydrocarbon and fluorinated surfaces with air bubbles in aqueous solutions have been systematically and quantitatively measured using a bubble probe atomic force microscopy (AFM) technique. Ethanol was introduced to water for modulating the solution polarity. The experimental force profiles were analyzed using a theoretical model combining the Reynolds lubrication theory and augmented Young-Laplace equation by including disjoining pressure arisen from the Derjarguin-Landau-Verwey-Overbeek (DLVO) and non-DLVO interactions (i.e., hydrophobic interactions). FINDINGS The experiment results show that the hydrophobic interactions were firstly weakened and then strengthened by increasing ethanol content in the aqueous media, mainly due to the variation in interfacial hydrogen bonding network. The fluorinated surface exhibited less sensitivity to ethanol than hydrocarbon surface, which is attributed to the presence of ordered interfacial water layer. Our work reveals the different hydrophobic effects of hydrocarbon and fluorinated surfaces, with useful implications on modulating the interfacial interactions of relevant materials in various engineering and bioengineering applications.
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Affiliation(s)
- Lu Gong
- Department of Chemical & Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Feiyi Wu
- Department of Chemical & Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Wenshuai Yang
- Department of Chemical & Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Charley Huang
- Department of Chemical & Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Wenhui Li
- Department of Chemical & Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Xiaogang Wang
- Heavy Machinery Engineering Research Center of Education Ministry, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Jianmei Wang
- Heavy Machinery Engineering Research Center of Education Ministry, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Tian Tang
- Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Hongbo Zeng
- Department of Chemical & Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada.
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23
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Junge F, Lee PW, Kumar Singh A, Wasternack J, Pachnicz MP, Haag R, Schalley CA. Interfaces with Fluorinated Amphiphiles: Superstructures and Microfluidics. Angew Chem Int Ed Engl 2023; 62:e202213866. [PMID: 36412551 DOI: 10.1002/anie.202213866] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 11/23/2022]
Abstract
This Minireview discusses recent developments in research on the interfacial phenomena of fluorinated amphiphiles, with a focus on applications that exploit the unique and manifold interfacial properties associated with these amphiphiles. Most notably, fluorinated amphiphiles form stable aggregates with often distinctly different morphologies compared to their nonfluorinated counterparts. Consequently, fluorinated surfactants have found wide use in high-performance applications such as microfluidic-assisted screening. Additionally, their fluorine-specific behaviour at solid/liquid interfaces, such as the formation of superhydrophobic coatings after deposition on surfaces, will be discussed. As fluorinated surfactants and perfluorinated materials in general pose potential environmental threats, recent developments in their remediation based on their adsorption onto fluorinated surfaces will be evaluated.
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Affiliation(s)
- Florian Junge
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
| | - Pin-Wei Lee
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 20, 14195, Berlin, Germany
| | - Abhishek Kumar Singh
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
| | - Janos Wasternack
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 20, 14195, Berlin, Germany
| | - Michał P Pachnicz
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 20, 14195, Berlin, Germany
| | - Rainer Haag
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
| | - Christoph A Schalley
- Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimallee 20, 14195, Berlin, Germany
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24
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El-Atawy MA, Omar AZ, Alazmi ML, Alsubaie MS, Hamed EA, Ahmed HA. Synthesis and characterization of new imine liquid crystals based on terminal perfluoroalkyl group. Heliyon 2023; 9:e14871. [PMID: 37025900 PMCID: PMC10070094 DOI: 10.1016/j.heliyon.2023.e14871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/18/2023] [Accepted: 03/21/2023] [Indexed: 03/28/2023] Open
Abstract
New organic derivatives named, (E)-3(or4) -(alkyloxy)-N-{(trifluoromethyl)benzylidene}aniline, 1a-f, were synthesized and examined their liquid crystalline behaviors. FT-IR, 1H NMR, 13C NMR, 19F NMR, elemental analyses and GCMS were used to validate the prepared compounds' chemical structures. We used differential scanning calorimetry (DSC) and polarized optical microscopy (POM) to investigate the mesomorphic characteristics of the formed Schiff bases. All tested compounds of series 1a-c have mesomorphic behaviour of nematogenic temperature ranges while the group 1d-f show non-mesomorphic properties. Moreover, it was found that the enantiotropic N phases included all of the homologue 1a-c. Computational studies using DFT (density functional theory) validated the experimental mesomorphic behavior results. All the analyzed compounds had their dipole moments, polarizability, and reactivity characteristics explained. Theoretical simulations showed that as the length of the terminal chain is increased, the polarizability of the stuided compounds increases. Consequently, compounds 1a and 1d have the least polarizability.
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25
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Bouvain P, Ding Z, Kadir S, Kleimann P, Kluge N, Tiren ZB, Steckel B, Flocke V, Zalfen R, Petzsch P, Wachtmeister T, John G, Subramaniam N, Krämer W, Strasdeit T, Mehrabipour M, Moll JM, Schubert R, Ahmadian MR, Bönner F, Boeken U, Westenfeld R, Engel DR, Kelm M, Schrader J, Köhrer K, Grandoch M, Temme S, Flögel U. Non-invasive mapping of systemic neutrophil dynamics upon cardiovascular injury. NATURE CARDIOVASCULAR RESEARCH 2023; 2:126-143. [PMID: 39196054 PMCID: PMC11357992 DOI: 10.1038/s44161-022-00210-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 12/22/2022] [Indexed: 08/29/2024]
Abstract
Neutrophils play a complex role during onset of tissue injury and subsequent resolution and healing. To assess neutrophil dynamics upon cardiovascular injury, here we develop a non-invasive, background-free approach for specific mapping of neutrophil dynamics by whole-body magnetic resonance imaging using targeted multimodal fluorine-loaded nanotracers engineered with binding peptides specifically directed against murine or human neutrophils. Intravenous tracer application before injury allowed non-invasive three-dimensional visualization of neutrophils within their different hematopoietic niches over the entire body and subsequent monitoring of their egress into affected tissues. Stimulated murine and human neutrophils exhibited enhanced labeling due to upregulation of their target receptors, which could be exploited as an in vivo readout for their activation state in both sterile and nonsterile cardiovascular inflammation. This non-invasive approach will allow us to identify hidden origins of bacterial or sterile inflammation in patients and also to unravel cardiovascular disease states on the verge of severe aggravation due to enhanced neutrophil infiltration or activation.
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Affiliation(s)
- Pascal Bouvain
- Experimental Cardiovascular Imaging, Institute for Molecular Cardiology, Heinrich Heine University, Düsseldorf, Germany
| | - Zhaoping Ding
- Experimental Cardiovascular Imaging, Institute for Molecular Cardiology, Heinrich Heine University, Düsseldorf, Germany
| | - Shiwa Kadir
- Experimental Cardiovascular Imaging, Institute for Molecular Cardiology, Heinrich Heine University, Düsseldorf, Germany
| | - Patricia Kleimann
- Experimental Cardiovascular Imaging, Institute for Molecular Cardiology, Heinrich Heine University, Düsseldorf, Germany
| | - Nils Kluge
- Experimental Cardiovascular Imaging, Institute for Molecular Cardiology, Heinrich Heine University, Düsseldorf, Germany
| | - Zeynep-Büsra Tiren
- Experimental Cardiovascular Imaging, Institute for Molecular Cardiology, Heinrich Heine University, Düsseldorf, Germany
| | - Bodo Steckel
- Experimental Cardiovascular Imaging, Institute for Molecular Cardiology, Heinrich Heine University, Düsseldorf, Germany
| | - Vera Flocke
- Experimental Cardiovascular Imaging, Institute for Molecular Cardiology, Heinrich Heine University, Düsseldorf, Germany
| | - Ria Zalfen
- Experimental Cardiovascular Imaging, Institute for Molecular Cardiology, Heinrich Heine University, Düsseldorf, Germany
| | - Patrick Petzsch
- Biological and Medical Research Center (BMFZ), Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Thorsten Wachtmeister
- Biological and Medical Research Center (BMFZ), Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Gordon John
- Dental Office/Oral Surgery, Dr. G. John, Plauen, Germany
| | - Nirojah Subramaniam
- Institute for Experimental Immunology and Imaging, Department of Immunodynamics, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Wolfgang Krämer
- Department of Pharmaceutical Technology and Biopharmacy, Albert Ludwig University, Freiburg im Breisgau, Germany
| | - Tobias Strasdeit
- Institute of Neuro- and Sensory Physiology, Heinrich Heine University, Düsseldorf, Germany
| | - Mehrnaz Mehrabipour
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf, Germany
| | - Jens M Moll
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf, Germany
| | - Rolf Schubert
- Department of Pharmaceutical Technology and Biopharmacy, Albert Ludwig University, Freiburg im Breisgau, Germany
| | - Mohammad Reza Ahmadian
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf, Germany
| | - Florian Bönner
- Department of Cardiology, Pneumology and Angiology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Udo Boeken
- Clinic for Cardiac Surgery, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Ralf Westenfeld
- Department of Cardiology, Pneumology and Angiology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Daniel Robert Engel
- Institute for Experimental Immunology and Imaging, Department of Immunodynamics, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Malte Kelm
- Department of Cardiology, Pneumology and Angiology, University Hospital Düsseldorf, Düsseldorf, Germany
- Cardiovascular Research Institute Düsseldorf (CARID), Heinrich Heine University, Düsseldorf, Germany
| | - Jürgen Schrader
- Experimental Cardiovascular Imaging, Institute for Molecular Cardiology, Heinrich Heine University, Düsseldorf, Germany
- Cardiovascular Research Institute Düsseldorf (CARID), Heinrich Heine University, Düsseldorf, Germany
| | - Karl Köhrer
- Biological and Medical Research Center (BMFZ), Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Maria Grandoch
- Institute for Translational Pharmacology, Heinrich Heine University, Düsseldorf, Germany
| | - Sebastian Temme
- Experimental Cardiovascular Imaging, Institute for Molecular Cardiology, Heinrich Heine University, Düsseldorf, Germany
- Department of Anesthesiology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Ulrich Flögel
- Experimental Cardiovascular Imaging, Institute for Molecular Cardiology, Heinrich Heine University, Düsseldorf, Germany.
- Department of Cardiology, Pneumology and Angiology, University Hospital Düsseldorf, Düsseldorf, Germany.
- Cardiovascular Research Institute Düsseldorf (CARID), Heinrich Heine University, Düsseldorf, Germany.
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26
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Marschall C, Witt M, Hauptmeier B, Frieß W. Drug Product Characterization of High Concentration Non-Aqueous Protein Powder Suspensions. J Pharm Sci 2023; 112:61-75. [PMID: 35779665 DOI: 10.1016/j.xphs.2022.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 06/18/2022] [Accepted: 06/20/2022] [Indexed: 11/20/2022]
Abstract
High concentration protein formulations for subcutaneous injection represent a substantial number of development projects in the pharmaceutical industry. Such concentrated aqueous protein solutions face some specific challenges such as increased viscosity and aggregation propensity. Protein powder suspensions in non-aqueous vehicles could be an alternative providing lower viscosity than the respective aqueous solution. The choice of potential suspension vehicles is limited as traditional non-aqueous liquids, such as oils, show an inherent high viscosity. We studied suspensions prepared by dispersing spray-dried protein powder in different vehicles including sesame oil and medium chain triglycerides, as well as fluorinated and semifluorinated alkanes. We found, that semifluorinated alkanes enable formulations with high concentrations up to 280 mg/ml monoclonal antibody with a low viscosity of less than 10 mPa·s and low injection forces. The glide force of suspensions containing 210 mg/ml protein was not affected by the particle size of the spray-dried powders with medians ranging from 1 to 14 µm. In contrast, suspensions prepared with cryo-milled powder showed markedly higher viscosities and were not injectable at the same concentration. Protein powder suspensions were syringeable using a 25G needle. Vial filling using a peristaltic pump was possible and lead to a uniform filling. Sedimentation of the suspension was slow and does not lead to challenges upon vial filling during manufacturing or transfer of the suspension into syringes. Thus, we could show that dispersions of spray-dried protein powders in non-aqueous vehicles, such as semifluorinated alkanes, are a promising alternative to aqueous protein solutions at high concentrations.
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Affiliation(s)
- Christoph Marschall
- Ludwig-Maximilians-Universität München; Department of Pharmacy; Pharmaceutical Technology and Biopharmceutics, Butenandtstraße 5, D-81377 München, Germany; AbbVie Deutschland GmbH, Knollstraße 50, D-67061 Ludwigshafen, Germany
| | - Madlen Witt
- Novaliq GmbH, Im Neuenheimer, Feld 515, D-69120, Heidelberg, Germany; Merck KGaA, Frankfurter Straße 250, D-64293 Darmstadt, Germany
| | - Bernhard Hauptmeier
- Novaliq GmbH, Im Neuenheimer, Feld 515, D-69120, Heidelberg, Germany; Boehringer Ingelheim, Vetmedica GmbH, Binger Straße 173, D-55216, Ingelheim am Rhein, Germany
| | - Wolfgang Frieß
- Ludwig-Maximilians-Universität München; Department of Pharmacy; Pharmaceutical Technology and Biopharmceutics, Butenandtstraße 5, D-81377 München, Germany.
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27
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Fountain JN, Hawker MJ, Hartle L, Wu J, Montanari V, Sahoo JK, Davis LM, Kaplan DL, Kumar K. Towards Non-stick Silk: Tuning the Hydrophobicity of Silk Fibroin Protein. Chembiochem 2022; 23:e202200429. [PMID: 35998090 PMCID: PMC9830957 DOI: 10.1002/cbic.202200429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/22/2022] [Indexed: 02/03/2023]
Abstract
Silk fibroin protein is a biomaterial with excellent biocompatibility and low immunogenicity. These properties have catapulted the material as a leader for extensive use in stents, catheters, and wound dressings. Modulation of hydrophobicity of silk fibroin protein to further expand the scope and utility however has been elusive. We report that installing perfluorocarbon chains on the surface of silk fibroin transforms this water-soluble protein into a remarkably hydrophobic polymer that can be solvent-cast. A clear relationship emerged between fluorine content of the modified silk and film hydrophobicity. Water contact angles of the most decorated silk fibroin protein exceeded that of Teflon®. We further show that water uptake in prefabricated silk bars is dramatically reduced, extending their lifetimes, and maintaining mechanical integrity. These results highlight the power of chemistry under moderate conditions to install unnatural groups onto the silk fibroin surface and will enable further exploration into applications of this versatile biomaterial.
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Affiliation(s)
| | - Morgan J. Hawker
- Department of Chemistry and Biochemistry, California State University, Fresno, Fresno, CA 93740
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155
| | - Lauren Hartle
- Department of Chemistry, Tufts University, Medford, MA 02155
- Present address: Prime Impact Fund, Cambridge, MA 02139
| | - Junqi Wu
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155
| | | | | | - Luke M. Davis
- Department of Chemistry, Tufts University, Medford, MA 02155
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155
| | - Krishna Kumar
- Department of Chemistry, Tufts University, Medford, MA 02155
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155
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28
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Parker BA, Knappe DRU, Titaley IA, Wanzek TA, Field JA. Tools for Understanding and Predicting the Affinity of Per- and Polyfluoroalkyl Substances for Anion-Exchange Sorbents. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:15470-15477. [PMID: 36265138 DOI: 10.1021/acs.est.1c08345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Anion-exchange (AE) sorbents are gaining in popularity for the remediation of anionic per- and polyfluoroalkyl substances (PFAS) in water. However, it is unclear how hydrophobic and electrostatic interactions contribute to anionic PFAS retention. The goal of this study was to understand the effects of PFAS chain length and head group on electrostatic interactions between PFAS and an aminopropyl AE phase. Liquid chromatography-mass spectrometry (LC-MS) was used with an aminopropyl AE guard column to find relative retention times. The average electrostatic potential (EPavg) of each PFAS was calculated, which correlated positively with the PFAS chromatographic retention time, demonstrating the value of EPavg as a proxy for predicting electrostatic interactions between PFAS and the aminopropyl AE phase. The order of greatest to lowest PFAS AE affinity for an aminopropyl column based on chromatographic retention times and electrostatic interactions was n:3 fluorotelomer carboxylic acids (n:3 FtAs) > n:2 fluorotelomer carboxylic acids (n:2 FtAs) > perfluoroalkyl carboxylates (PFCAs) > perfluoroalkyl sulfonamides (FASAs) ∼ n:2 fluorotelomer sulfonates (n:2 FtSs) > perfluoroalkyl sulfonates (PFSAs). This study introduces a methodology for qualitatively characterizing electrostatic interactions between PFAS and AE phases and highlights that electrostatic interactions alone cannot explain the affinity of PFAS for AE resins in water treatment/remediation scenarios.
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Affiliation(s)
- Bethany A Parker
- Department of Chemistry, Oregon State University, Corvallis, Oregon97331, United States
| | - Detlef R U Knappe
- Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, North Carolina27695-8201, United States
| | - Ivan A Titaley
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon97331, United States
| | - Thomas A Wanzek
- Department of Crop and Soil Science, Oregon State University, Corvallis, Oregon97331, United States
| | - Jennifer A Field
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon97331, United States
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29
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Singh AK, Schade B, Rosati M, Rashmi R, Dichiarante V, Cavallo G, Metrangolo P, Haag R. Synthesis and Linker-Controlled Self-Assembly of Dendritic Amphiphiles with Branched Fluorinated Tails. Macromol Biosci 2022; 22:e2200108. [PMID: 35612569 DOI: 10.1002/mabi.202200108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/26/2022] [Indexed: 12/25/2022]
Abstract
Amphiphiles containing fluorinated segments tend to aggregate in the aqueous solution into structure of lower curvature than their hydrocarbon analogs due to their larger diameter. A benefit of supramolecular structures incorporating fluorine moieties is their high electron density, which can be viewed in cryo-TEM with better contrast than their hydrogenated forms. A modular approach has been developed for the synthesis of a new family of nonionic branched amphiphiles consisting of oligoglycerol units (G2) as the hydrophilic part and a branched fluorinated (F27) hydrophobic part. The design of this hydrophobic moiety allows to achieve a higher fluorine density than the previously used straight-chain perfluoroalkanes. Two different chemical approaches, amide, and triazole, are used to link the hydrophilic and hydrophobic segments. In addition, the aggregation behavior is investigated by dynamic light scattering (DLS) and cryo-TEM. The measurements prove the formation of multivesicular (MVVs) and multilamellar (MLVs) vesicles as well as smaller unilamellar vesicles. Further, the cell viability test proves the low cell toxicity of these nanoarchitectures for potential biomedical applications.
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Affiliation(s)
- Abhishek Kumar Singh
- Institut für Chemie und Biochemie, Organische Chemie, Freie Universität Berlin, Takustraße 3, Berlin, 14195, Germany
| | - Boris Schade
- Forschungszentrum für Elektronenmikroskopie, Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstraße 36a, Berlin, 14195, Germany
| | - Marta Rosati
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via L. Mancinelli 7, Milan, 20131, Italy
| | - Rashmi Rashmi
- Institut für Chemie und Biochemie, Organische Chemie, Freie Universität Berlin, Takustraße 3, Berlin, 14195, Germany
| | - Valentina Dichiarante
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via L. Mancinelli 7, Milan, 20131, Italy
| | - Gabriella Cavallo
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via L. Mancinelli 7, Milan, 20131, Italy
| | - Pierangelo Metrangolo
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via L. Mancinelli 7, Milan, 20131, Italy
| | - Rainer Haag
- Institut für Chemie und Biochemie, Organische Chemie, Freie Universität Berlin, Takustraße 3, Berlin, 14195, Germany
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Chachaj-Brekiesz A, Kobierski J, Griñón Echaniz R, Wnętrzak A, Dynarowicz-Latka P. Comprehensive Approach to the Interpretation of the Electrical Properties of Film-Forming Molecules. J Phys Chem B 2022; 126:7037-7046. [PMID: 36054662 PMCID: PMC9483982 DOI: 10.1021/acs.jpcb.2c04526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
This paper presents a general protocol for the interpretation
of
the electric surface potential of Langmuir monolayers based on a three-layer
capacitor model. The measured values were correlated with the results
from DFT molecular dynamics simulations, and, as a result, the local
dielectric permittivities and dipole-moment components of molecules
organized in the monolayer were obtained. The main advantage of the
developed approach is applicability to amphiphiles of any type; irrespective
of the structure of the polar head as well as the molecular organization
and inclination in the surface film. The developed methodology was
successively applied to an atypical surface-active compound, perfluorodecyldecane,
and its derivatives containing the hydroxyl, thiol, and carboxyl moiety.
The following contributions to the apparent dipole moments connected
with the reorientation of water molecules and local dielectric permittivities
in the vicinity of polar and apolar molecule parts, respectively,
were determined: μw/εw = −0.85
D, εp = 5.00, and εa = 1.80. Moreover,
the investigated perfluorodecyldecane derivatives were comprehensively
characterized in terms of their surface activity, film rheology, and
effective surface dissociation equilibria. The proposed methodology
may be crucial for the process of the design and the preliminary characterization
of molecules for sensor and material science applications.
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Affiliation(s)
- Anna Chachaj-Brekiesz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Jan Kobierski
- Department of Pharmaceutical Biophysics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Rosa Griñón Echaniz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Anita Wnętrzak
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
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31
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Yalcinkaya H, Mangiapia G, Appavou MS, Hoffmann I, Gradzielski M. Polymeric Nanocapsules from Well-Defined Zwitanionic Vesicles as a Template. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hacer Yalcinkaya
- Stranski-Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, Strasse des 17 Juni, Sekr. TC7, D-10623 Berlin, Germany
- Evonik Operations GmbH, Goldschmidtstraße 100, 45127 Essen, Germany
| | - Gaetano Mangiapia
- German Engineering Materials Science (GEMS) at Heinz Maier-Leibnitz Zentrum (MLZ), Helmhotz-Zentrum Hereon, Lichtenbergstr. 1, 85748 Garching, Germany
| | - Marie-Sousai Appavou
- Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science (JCNS) at MLZ, Lichtenbergstrasse 1, 85748 Garching, Germany
| | - Ingo Hoffmann
- Institut Max von Laue-Paul Langevin (ILL), F-38042 Grenoble Cedex 9, France
| | - Michael Gradzielski
- Stranski-Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, Strasse des 17 Juni, Sekr. TC7, D-10623 Berlin, Germany
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32
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Yu X, Miao X, Li H, Qiu K, Zong R, Li Q. Influence of seawater on interfacial Properties, foam performance and aggregation behaviour of Fluorocarbon/Hydrocarbon surfactant mixtures. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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33
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Gal JF, Maria PC, Duñach E, Meierhenrich UJ. Evolution of Chemical Research in Nice, Côte d'Azur: From Early Laboratories to the 'Institut de Chimie de Nice'. Chempluschem 2022; 87:e202100532. [PMID: 35312225 DOI: 10.1002/cplu.202100532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/23/2022] [Indexed: 02/03/2023]
Abstract
The 'Institut de Chimie de Nice' (ICN), founded in 2012, celebrates its 10th anniversary in 2022. Today, the ICN is part of the University Côte d'Azur (UCA), one out of nine excellence universities in France. ICN is also affiliated to the CNRS. We use the institute's anniversary to reflect on the origins and the successful evolution of research in chemical sciences in Nice, France. We outline research topics and their development towards modern chemistry in Nice that are characterized by innovation and territorial anchoring. At present, four research axes, namely aroma and perfume chemistry, medicinal chemistry, radiochemistry, and material chemistry structure the institute. ICN has created five start-up companies and includes a technological platform. The ICN is central part of the university and contributes to the advancement in chemical sciences as evidenced by both fundamental research and active contributions to local partnerships.
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Affiliation(s)
- Jean-François Gal
- Université Côte d'Azur, Institut de Chimie de Nice, CNRS UMR 7272, 28 Avenue Valrose, 06108, Nice, France
| | - Pierre-Charles Maria
- Université Côte d'Azur, Institut de Chimie de Nice, CNRS UMR 7272, 28 Avenue Valrose, 06108, Nice, France
| | - Elisabet Duñach
- Université Côte d'Azur, Institut de Chimie de Nice, CNRS UMR 7272, 28 Avenue Valrose, 06108, Nice, France
| | - Uwe J Meierhenrich
- Université Côte d'Azur, Institut de Chimie de Nice, CNRS UMR 7272, 28 Avenue Valrose, 06108, Nice, France
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34
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Shen X, Wang H, Zhao Y, Liang J, Lu B, Sun W, Lu K, Wang H, Yuan L. Recycling protein selective adsorption on fluorine-modified surface through fluorine-fluorine interaction. Colloids Surf B Biointerfaces 2022; 214:112486. [PMID: 35364454 DOI: 10.1016/j.colsurfb.2022.112486] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 03/14/2022] [Accepted: 03/25/2022] [Indexed: 11/19/2022]
Abstract
Low surface energy materials with micro-nano structures have been widely developed to prevent non-specific adhesion of biomolecules. Herein we put forward a new approach based on the antifouling and self-assembly properties of fluorine components, to construct a non-specific protein resistance surface with selective protein adsorption property. Briefly, the antifouling surface (SN-F) was obtained by a simple one-step modification on silicon nanowire arrays (SiNWAs) with fluorine coupling agent 1 H,1 H,2 H,2 H-perfluorodecyltrimethoxysilane (FAS). And protein was fluorinated by conjugation with an amphiphilic fluoro-copolymer, produced from 2-methacrylamido glucopyranose (MAG) and trifluoroethyl methacrylate (TFEMA) via RAFT polymerization. The properties of the materials were characterized by 1H nuclear magnetic resonance (1H NMR), infrared spectroscopy (FTIR), water contact angle, and X-ray photoelectron spectroscopy (XPS) etc., and protein adsorption was investigated by protein content measurement, fluorescence detection, and electrophoresis. It was observed that the adsorption for native proteins on SN-F was at an extremely low level, while the adsorption for the fluoro-copolymer conjugated protein (PFG-BSA) was significantly increased. When the percentage of TFEMA in the fluoro-copolymer was as high as 52.0%, the fluorinated protein adsorbed on SN-F was more than 35 times of native proteins on the surface. Moreover, the platform could resist IgG adhesion in serum after the adsorption of fluorinated protein, and it could be recycled three times after 75% ethanol treatment. In conclusion, SN-F showed non-specific protein resistance through low surface energy and specific protein adsorption by fluorine-fluorine self-assembly. The fluorinated nanostructured platform has a great potential in controlling protein adsorption and release.
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Affiliation(s)
- Xiang Shen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou 215123, PR China
| | - Hengxiao Wang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou 215123, PR China
| | - Yingxian Zhao
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou 215123, PR China
| | - Jinwei Liang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou 215123, PR China
| | - Benben Lu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou 215123, PR China
| | - Wei Sun
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou 215123, PR China
| | - Kunyan Lu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou 215123, PR China
| | - Hongwei Wang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou 215123, PR China.
| | - Lin Yuan
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou 215123, PR China.
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35
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Dogan S, Paulus M, Surmeier G, Foryt K, Brägelmann K, Tolan M. Nondestructive Compression and Fluidization of Phospholipid Monolayers by Gaseous and Aerolized Perfluorocarbons: Promising Substances for Lung Surfactant Treatment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:6690-6699. [PMID: 35588471 DOI: 10.1021/acs.langmuir.2c00617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We present a surface-sensitive X-ray scattering study on the influence of gaseous and aerolized perfluorocarbons (FCs) on zwitterionic and anionic phospholipid Langmuir films, which serve as a simplified model system of lung surfactants. It was found that small gaseous FC molecules like F-propane and F-butane penetrate phospholipid monolayers and accumulate between the alkyl chains and form islands. This clustering process can trigger the formation of lipid crystallites at low initial surface pressures. In contrast, the large linear FC F-octyl bromide fluidizes membranes, causing a dissolution of crystalline domains. The bicyclic FC F-decalin accumulates between the alkyl chains of 1,2-dipalmitoyl phosphatidylcholine but cannot penetrate the more densely packed 1,2-dipalmitoyl phosphatidic acid films because of its size. The effects of FCs on lung surfactants are discussed in the framework of currently proposed therapeutic methods for acute respiratory distress syndrome using FC gases, vapor, or aerosol ventilation causing monolayer fluidization effects. This study implies that the highly biocompatible and nontoxic FCs could be beneficial in the treatment of lung diseases with injured nonfunctional lung surfactants in a novel approach for ventilation.
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Affiliation(s)
- Susanne Dogan
- Fakultät Physik/DELTA, TU Dortmund, 44221 Dortmund, Germany
| | - Michael Paulus
- Fakultät Physik/DELTA, TU Dortmund, 44221 Dortmund, Germany
| | - Göran Surmeier
- Fakultät Physik/DELTA, TU Dortmund, 44221 Dortmund, Germany
| | - Kevin Foryt
- Fakultät Physik/DELTA, TU Dortmund, 44221 Dortmund, Germany
| | | | - Metin Tolan
- Fakultät Physik/DELTA, TU Dortmund, 44221 Dortmund, Germany
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36
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Trinh V, Malloy CS, Durkin TJ, Gadh A, Savagatrup S. Detection of PFAS and Fluorinated Surfactants Using Differential Behaviors at Interfaces of Complex Droplets. ACS Sens 2022; 7:1514-1523. [PMID: 35442626 DOI: 10.1021/acssensors.2c00257] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Contamination of per- and polyfluoroalkyl substances (PFAS) in water supplies will continue to have serious health and environmental consequences. Despite the importance of monitoring the concentrations of PFAS at potential sites of contamination and at treatment plants, there are few suitable and rapid on-site methods. Many nonconventional techniques do not possess the necessary selectivity and sensitivity to distinguish PFAS from other surface-active components and to quantify the low concentrations in real-world conditions. Herein, we report a novel and rapid method for the detection of perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) by leveraging their differential behaviors at the interfaces of emissive complex droplets. Measurement of surface and interfacial tensions via a force tensiometer reveals that PFAS preferentially self-assemble at the water-fluorocarbon oil interface (F/W) rather than the water-hydrocarbon oil interface (H/W). We also observe an opposite behavior for hydrocarbon surfactants. This difference in interfacial behavior produces distinct effects on the morphological change and optical emission of biphasic oil-in-water droplets. The change in the intensity of fluorescence emission, measured with a simple spectroscopic setup, correlates with the concentrations of PFAS. We also demonstrate that the range of detection and sensitivity can be tuned by adjusting the initial composition of the complex droplets. Our results illustrate an alternative mode of sensors that may provide a rapid and on-site detection of PFAS.
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Affiliation(s)
- Vivian Trinh
- Department of Chemical and Environmental Engineering, University of Arizona, 1133 E. James E. Rogers Way, Tucson, Arizona 85721, United States
| | - Cameron S. Malloy
- Department of Chemical and Environmental Engineering, University of Arizona, 1133 E. James E. Rogers Way, Tucson, Arizona 85721, United States
| | - Tyler J. Durkin
- Department of Chemical and Environmental Engineering, University of Arizona, 1133 E. James E. Rogers Way, Tucson, Arizona 85721, United States
| | - Aakanksha Gadh
- Department of Chemical and Environmental Engineering, University of Arizona, 1133 E. James E. Rogers Way, Tucson, Arizona 85721, United States
| | - Suchol Savagatrup
- Department of Chemical and Environmental Engineering, University of Arizona, 1133 E. James E. Rogers Way, Tucson, Arizona 85721, United States
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37
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38
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Milnes-Smith E, Stone CA, Willis CR, Perkin S. Surface Reconstruction of Fluoropolymers in Liquid Media. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:4657-4668. [PMID: 35395153 PMCID: PMC9097541 DOI: 10.1021/acs.langmuir.2c00198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/25/2022] [Indexed: 06/14/2023]
Abstract
Surface reconstruction is the rearrangement of atoms or molecules at an interface in response to a stimulus, driven by lowering the overall free energy of the system. Perfluoroalkyl acrylate polymers with short side chains undergo reconstruction at room temperature when exposed to water. Here, we use contact angle aging to examine the liquid- and temperature- dependency of surface reconstruction of plasma polymerized perfluoroalkyl acrylates. We use a first order kinetic model to examine the dynamics of reconstructive processes. Our results show that, above the bulk melting point of the polymers, the contact angles of both polar and nonpolar (hydrocarbon) liquids show a time dependency well fit by the model. We conclude that surface reconstruction can be driven by the preferential segregation of hydrocarbon and fluorocarbon moieties as well as by polar interactions. This has implications in terms of using fluorocarbons to design oleophobic surfaces (and vice versa) and in terms of designing fluorocarbon and/or hydrocarbon surfaces with switchable wettability.
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Affiliation(s)
- Eleanor Milnes-Smith
- Department
of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford OX1 3QZ, United Kingdom
| | - Corinne A. Stone
- Defence
Science and Technology Laboratory, Porton Down, Salisbury,
Wiltshire SP4 0JQ, United
Kingdom
| | - Colin R. Willis
- Defence
Science and Technology Laboratory, Porton Down, Salisbury,
Wiltshire SP4 0JQ, United
Kingdom
| | - Susan Perkin
- Department
of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford OX1 3QZ, United Kingdom
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39
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Lau D, Lechermann LM, Gallagher FA. Clinical Translation of Neutrophil Imaging and Its Role in Cancer. Mol Imaging Biol 2022; 24:221-234. [PMID: 34637051 PMCID: PMC8983506 DOI: 10.1007/s11307-021-01649-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 01/22/2023]
Abstract
Neutrophils are the first line of defense against pathogens and abnormal cells. They regulate many biological processes such as infections and inflammation. Increasing evidence demonstrated a role for neutrophils in cancer, where different subpopulations have been found to possess both pro- or anti-tumorigenic functions in the tumor microenvironment. In this review, we discuss the phenotypic and functional diversity of neutrophils in cancer, their prognostic significance, and therapeutic relevance in human and preclinical models. Molecular imaging methods are increasingly used to probe neutrophil biology in vivo, as well as the cellular changes that occur during tumor progression and over the course of treatment. This review will discuss the role of neutrophil imaging in oncology and the lessons that can be drawn from imaging in infectious diseases and inflammatory disorders. The major factors to be considered when developing imaging techniques and biomarkers for neutrophils in cancer are reviewed. Finally, the potential clinical applications and the limitations of each method are discussed, as well as the challenges for future clinical translation.
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Affiliation(s)
- Doreen Lau
- Department of Radiology, University of Cambridge, Cambridge, UK.
- Cancer Research UK Cambridge Centre, Cambridge, UK.
- Department of Oncology, University of Oxford, Oxford, UK.
| | | | - Ferdia A Gallagher
- Department of Radiology, University of Cambridge, Cambridge, UK.
- Cancer Research UK Cambridge Centre, Cambridge, UK.
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40
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Lopes LD, Merlo AA. Born to be a Liquid Crystal: The role of fluorinated chain in the design and synthesis of new mesogens. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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41
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Fujiwara K, Shibahara M. Thermal transport mechanism at a solid-liquid interface based on the heat flux detected at a subatomic spatial resolution. Phys Rev E 2022; 105:034803. [PMID: 35428048 DOI: 10.1103/physreve.105.034803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 02/06/2022] [Indexed: 06/14/2023]
Abstract
Heat flux is a fundamental quantity in thermal science and engineering and is essential for understanding thermal transport phenomena. In this study, the heat flux in a solid-liquid interfacial region is obtained in a three-dimensional (3D) space at a subatomic spatial resolution based on classical molecular dynamics, yielding a 3D structure of the heat flux between the solid and liquid layers in contact. The results using the Lennard-Jones potential reveal the directional qualities of the heat flux, which are significantly dependent on the subatomic stresses in the structures of condensed phase systems. The heat flux and stress at the subatomic scale are related to the macroscopic transport quantities, which can be obtained using distribution functions; the stress and energy flux properties at the subatomic scale are comprehensively investigated using a single-interaction-based stress and energy flux to determine the origin of the thermal transport mechanism at the solid-liquid interface. The findings reveal that the density of states due to the stress caused by a single interaction exhibits a bandlike behavior. The net energy transport comprises positive and negative energy transport inside and outside the band. In addition, this is related to the intrinsic transport property of the atoms and molecules at the solid-liquid interface at the subatomic scale. The difference between the energy transport rates when a solid atom in the vicinity of the interface is near to or far from the liquid phase is the origin of the energy transport mechanism at the solid-liquid interface. 3D analysis of the heat flux and stress is carried out by varying the interaction strengths between the liquid molecules and solid atoms at the solid-liquid interface. This reveals that the directional quality of transport quantities is high at strong interaction strengths, thus indicating enhanced thermal transport. Furthermore, the influence of the temperature gradient in the system suggests that the energy transport imbalance between inside and outside the stress band in a high-stress field at the subatomic scale induces the net thermal transport across the interface in the nonequilibrium state.
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Affiliation(s)
- Kunio Fujiwara
- Center for Atomic and Molecular Technologies, Osaka University, Suita, Osaka 565-0871, Japan
- Japan Science and Technology Agency, PRESTO, Kawaguchi, Saitama 332-0012, Japan
| | - Masahiko Shibahara
- Department of Mechanical Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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42
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Amphiphilic Protoporphyrin IX Derivatives as New Photosensitizing Agents for the Improvement of Photodynamic Therapy. Biomedicines 2022; 10:biomedicines10020423. [PMID: 35203632 PMCID: PMC8962274 DOI: 10.3390/biomedicines10020423] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/28/2022] [Accepted: 02/04/2022] [Indexed: 11/16/2022] Open
Abstract
Photodynamic therapy (PDT) is a non-invasive therapeutic modality based on the interaction between a photosensitive molecule called photosensitizer (PS) and visible light irradiation in the presence of oxygen molecule. Protoporphyrin IX (PpIX), an efficient and widely used PS, is hampered in clinical PDT by its poor water-solubility and tendency to self-aggregate. These features are strongly related to the PS hydrophilic–lipophilic balance. In order to improve the chemical properties of PpIX, a series of amphiphilic PpIX derivatives endowed with PEG550 headgroups and hydrogenated or fluorinated tails was synthetized. Hydrophilic–lipophilic balance (HLB) and log p-values were computed for all of the prepared compounds. Their photochemical properties (spectroscopic characterization, photobleaching, and singlet oxygen quantum yield) were also evaluated followed by the in vitro studies of their cellular uptake, subcellular localization, and photocytotoxicity on three tumor cell lines (4T1, scc-U8, and WiDr cell lines). The results confirm the therapeutic potency of these new PpIX derivatives. Indeed, while all of the derivatives were perfectly water soluble, some of them exhibited an improved photodynamic effect compared to the parent PpIX.
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Abstract
Many structures in nature look symmetric, but this is not completely accurate, because absolute symmetry is close to death. Chirality (handedness) is one form of living asymmetry. Chirality has been extensively investigated at different levels. Many rules were coined in attempts made for many decades to have control over the selection of handedness that seems to easily occur in nature. It is certain that if good control is realized on chirality, the roads will be ultimately open towards numerous developments in pharmaceutical, technological, and industrial applications. This tutorial review presents a report on chirality from single molecules to supramolecular assemblies. The realized functions are still in their infancy and have been scarcely converted into actual applications. This review provides an overview for starters in the chirality field of research on concepts, common methodologies, and outstanding accomplishments. It starts with an introductory section on the definitions and classifications of chirality at the different levels of molecular complexity, followed by highlighting the importance of chirality in biological systems and the different means of realizing chirality and its inversion in solid and solution-based systems at molecular and supramolecular levels. Chirality-relevant important findings and (bio-)technological applications are also reported accordingly.
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44
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Liu Y, Zhang J, Tu Y, Zhu L. Potential-Independent Intracellular Drug Delivery and Mitochondrial Targeting. ACS NANO 2022; 16:1409-1420. [PMID: 34920667 PMCID: PMC9623822 DOI: 10.1021/acsnano.1c09456] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
In this study, two types of the fluoroamphiphile analogs were synthesized and self-assembled into the "core-shell" micellar nanocarriers for intracellular delivery and organelle targeting. Using the fluorescent dyes or vitamin E succinate as the cargo, the drug delivery and targeting capabilities of the fluoroamphiphiles and their micelles were evaluated in the cell lines, tumor cell spheroids, and tumor-bearing mice. The "core-fluorinated" micelles exhibited favorable physicochemical properties and improved the cellular uptake of the cargo by around 20 times compared to their "shell-fluorinated" counterparts. The results also indicated that the core-fluorinated micelles underwent an efficient clathrin-mediated endocytosis and a rapid endosomal escape thereafter. Interestingly, the internalized fluoroamphiphile micelles preferentially accumulated in mitochondria, by which the efficacy of the loaded vitamin E succinate was boosted both in vitro and in vivo. Unlike the popularly used cationic mitochondrial targeting ligands, as a charge-neutral nanocarrier, the fluoroamphiphiles' mitochondrial targeting was potential independent. The mechanism study suggested that the strong binding affinity with the phospholipids, particularly the cardiolipin, played an important role in the fluoroamphiphiles' mitochondrial targeting. These charge-neutral fluoroamphiphiles might have great potential to be a simple and reliable tool for intracellular drug delivery and mitochondrial targeting.
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Affiliation(s)
- Yin Liu
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas 77843, United States
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou, Zhejiang Province 330106, China
| | - Jian Zhang
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas 77843, United States
| | - Ying Tu
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas 77843, United States
| | - Lin Zhu
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas 77843, United States
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Fan S, Liu X, Yu S, Wang J, Li C, Cheng S, Hong M. Aptamer-functionalized fluorine-containing DNAsomes for targeted drug delivery to cancer cells. NEW J CHEM 2022. [DOI: 10.1039/d2nj00967f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A drug-loaded aptamer functionalized fluorine-containing DNAsome was reported here, which can deliver doxorubicin into cancer cells in a targeted manner through receptor mediated endocytosis and induce the apoptosis of cancer cells.
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Affiliation(s)
- Shuhua Fan
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong, China
| | - Xiaoyan Liu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong, China
| | - Shuxian Yu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong, China
| | - Juan Wang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong, China
| | - Chuan Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong, China
| | - Shuang Cheng
- School of Agriculture, Liaocheng University, Liaocheng, 252059, Shandong, China
| | - Min Hong
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong, China
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Alexander S, Barron AR, Denkov N, Grassia P, Kiani S, Sagisaka M, Shojaei MJ, Shokri N. Foam Generation and Stability: Role of the Surfactant Structure and Asphaltene Aggregates. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shirin Alexander
- Energy Safety Research Institute (ESRI), Swansea University, Bay Campus, Swansea SA1 8EN, U.K
| | - Andrew R. Barron
- Energy Safety Research Institute (ESRI), Swansea University, Bay Campus, Swansea SA1 8EN, U.K
- Arizona Institutes of Resilience (AIR), University of Arizona, Tucson, Arizona 85721, United States
- Department of Chemistry and Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States
- Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam
| | - Nikolai Denkov
- Department of Chemical and Pharmaceutical Engineering, Faculty of Chemistry and Pharmacy, Sofia University, 1 James Bourchier Avenue, 1164 Sofia, Bulgaria
| | - Paul Grassia
- Department of Chemical and Process Engineering, University of Strathclyde, Glasgow G1 1XJ, U.K
| | - Sajad Kiani
- Energy Safety Research Institute (ESRI), Swansea University, Bay Campus, Swansea SA1 8EN, U.K
| | - Masanobu Sagisaka
- Department of Frontier Materials Chemistry, Graduate School of Science and Technology, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
| | - Mohammad Javad Shojaei
- Department of Earth Science and Engineering, Imperial College London, London SW7 2BX, U.K
| | - Nima Shokri
- Institute of Geo-Hydroinformatics, Hamburg University of Technology, Am Schwarzenberg-Campus 3 (E), 21073 Hamburg, Germany
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Shimoaka T, Fukumi A, Shioya N, Hasegawa T. Perfluoroalkanes remain on water surface even after volatilization: Affinity analysis of fluorinated solvent with water surface. J Colloid Interface Sci 2021; 611:390-396. [PMID: 34959011 DOI: 10.1016/j.jcis.2021.12.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 11/25/2022]
Abstract
Perfluoroalkyl (Rf) compounds are known to have a poor solubility for most solvents except fluorinated solvents, which is known as a fluorous property. In Langmuir (L) film studies of Rf compounds, fluorinated solvents such as perfluoro-n-alkanes are generally used as a good solvent for depositing a sample monolayer on the water surface. On the other hand, a single Rf chain with a short length such as C6F13- is known to exhibit a totally different character from a condensed matter to have a strong affinity to a water molecule on the water surface via the dipole-dipole interaction, which is known as the dipole interactive (DI) property. On considering the DI property, the solvents of perfluoro-n-alkanes would remain on water for a long time, which may disturb the formation of L film on water. In the present study, details of a liquid layer of perfluoro-n-alkanes on water are investigated by using infrared external reflection (IR ER) spectrometry. Although the perfluoro-n-alkanes are highly volatile, the relevant vibration bands did not disappear even after two hours, which means that they remain on the water surface. Fortunately, however, the remained solvent, C6F14, has been found no disturbing factor for preparation of L films.
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Affiliation(s)
- Takafumi Shimoaka
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
| | - Aki Fukumi
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Nobutaka Shioya
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takeshi Hasegawa
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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Faggiano S, Ronda L, Bruno S, Abbruzzetti S, Viappiani C, Bettati S, Mozzarelli A. From hemoglobin allostery to hemoglobin-based oxygen carriers. Mol Aspects Med 2021; 84:101050. [PMID: 34776270 DOI: 10.1016/j.mam.2021.101050] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 11/05/2021] [Accepted: 11/05/2021] [Indexed: 12/18/2022]
Abstract
Hemoglobin (Hb) plays its vital role through structural and functional properties evolutionarily optimized to work within red blood cells, i.e., the tetrameric assembly, well-defined oxygen affinity, positive cooperativity, and heterotropic allosteric regulation by protons, chloride and 2,3-diphosphoglycerate. Outside red blood cells, the Hb tetramer dissociates into dimers, which exhibit high oxygen affinity and neither cooperativity nor allosteric regulation. They are prone to extravasate, thus scavenging endothelial NO and causing hypertension, and cause nephrotoxicity. In addition, they are more prone to autoxidation, generating radicals. The need to overcome the adverse effects associated with cell-free Hb has always been a major hurdle in the development of substitutes of allogeneic blood transfusions for all clinical situations where blood is unavailable or cannot be used due to, for example, religious objections. This class of therapeutics, indicated as hemoglobin-based oxygen carriers (HBOCs), is formed by genetically and/or chemically modified Hbs. Many efforts were devoted to the exploitation of the wealth of biochemical and biophysical information available on Hb structure, function, and dynamics to design safe HBOCs, overcoming the negative effects of free plasma Hb. Unfortunately, so far, no HBOC has been approved by FDA and EMA, except for compassionate use. However, the unmet clinical needs that triggered intensive investigations more than fifty years ago are still awaiting an answer. Recently, HBOCs "repositioning" has led to their successful application in organ perfusion fluids.
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Affiliation(s)
- Serena Faggiano
- Department of Food and Drug, University of Parma, Parma, Italy; Institute of Biophysics, National Research Council, Pisa, Italy
| | - Luca Ronda
- Institute of Biophysics, National Research Council, Pisa, Italy; Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Stefano Bruno
- Department of Food and Drug, University of Parma, Parma, Italy
| | - Stefania Abbruzzetti
- Department of Mathematical, Physical and Computer Sciences, University of Parma, Parma, Italy
| | - Cristiano Viappiani
- Department of Mathematical, Physical and Computer Sciences, University of Parma, Parma, Italy
| | - Stefano Bettati
- Institute of Biophysics, National Research Council, Pisa, Italy; Department of Medicine and Surgery, University of Parma, Parma, Italy; National Institute of Biostructures and Biosystems, Rome, Italy
| | - Andrea Mozzarelli
- Department of Food and Drug, University of Parma, Parma, Italy; Institute of Biophysics, National Research Council, Pisa, Italy.
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Yadav HOS, Harada S, Kuo AT, Urata S, Shinoda W. Hemimicelle formation of semi-fluorocarbon chains at air–water interface: coarse-grained molecular dynamics study with an extension of the SPICA force field. Mol Phys 2021. [DOI: 10.1080/00268976.2021.1910355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Hari O. S. Yadav
- Department of Materials Chemistry, Nagoya University, Nagoya, Japan
| | - Shogo Harada
- Department of Materials Chemistry, Nagoya University, Nagoya, Japan
| | - An-Tsung Kuo
- Innovative Technology Laboratories, AGC Inc., Yokohama, Japan
| | - Shingo Urata
- Innovative Technology Laboratories, AGC Inc., Yokohama, Japan
| | - Wataru Shinoda
- Department of Materials Chemistry, Nagoya University, Nagoya, Japan
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50
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Mali A, Kaijzel EL, Lamb HJ, Cruz LJ. 19F-nanoparticles: Platform for in vivo delivery of fluorinated biomaterials for 19F-MRI. J Control Release 2021; 338:870-889. [PMID: 34492234 DOI: 10.1016/j.jconrel.2021.09.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 11/19/2022]
Abstract
Fluorine-19 (19F) magnetic resonance imaging (MRI) features one of the most investigated and innovative techniques for quantitative and unambiguous cell tracking, providing information for both localization and number of cells. Because of the relative insensitivity of the MRI technique, a high number of magnetically equivalent fluorine atoms are required to gain detectable signals. However, an increased amount of 19F nuclei induces low solubility in aqueous solutions, making fluorine-based probes not suitable for in vivo imaging applications. In this context, nanoparticle-based platforms play a crucial role, since nanoparticles may carry a high payload of 19F-based contrast agents into the relevant cells or tissues, increase the imaging agents biocompatibility, and provide a highly versatile platform. In this review, we present an overview of the 19F-based nanoprobes for sensitive 19F-MRI, focusing on the main nanotechnologies employed to date, such as fluorine and theranostic nanovectors, including their design and applications.
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Affiliation(s)
- Alvja Mali
- Translational Nanobiomaterials and Imaging (TNI) Group, Department of Radiology, Leiden University Medical Center (LUMC), Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - Eric L Kaijzel
- Translational Nanobiomaterials and Imaging (TNI) Group, Department of Radiology, Leiden University Medical Center (LUMC), Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - Hildo J Lamb
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Luis J Cruz
- Translational Nanobiomaterials and Imaging (TNI) Group, Department of Radiology, Leiden University Medical Center (LUMC), Albinusdreef 2, 2333 ZA Leiden, the Netherlands.
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