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Tatarinov DA, Skurlov ID, Sokolova AV, Shimko AA, Danilov DV, Timkina YA, Rider MA, Zakharov VV, Cherevkov SA, Kuzmenko NK, Koroleva AV, Zhizhin EV, Maslova NA, Stovpiaga EY, Kurdyukov DA, Golubev VG, Zhang X, Zheng W, Tcypkin AN, Litvin AP, Rogach AL. Near-infrared two-photon excited photoluminescence from Yb 3+-doped CsPbCl xBr 3-x perovskite nanocrystals embedded into amphiphilic silica microspheres. NANOSCALE 2024. [PMID: 38623897 DOI: 10.1039/d4nr00892h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Nonlinear absorption of metal-halide perovskite nanocrystals (NCs) makes them an ideal candidate for applications which require multiphoton-excited photoluminescence. By doping perovskite NCs with lanthanides, their emission can be extended into the near-infrared (NIR) spectral region. We demonstrate how the combination of Yb3+ doping and bandgap engineering of cesium lead halide perovskite NCs performed by anion exchange (from Cl- to Br-) leads to efficient and tunable emitters that operate under two-photon excitation in the NIR spectral region. By optimizing the anion composition, Yb3+-doped CsPbClxBr3-x NCs exhibited high values of two-photon absorption cross-section reaching 2.3 × 105 GM, and displayed dual-band emission located both in the visible (407-493 nm) and NIR (985 nm). With a view of practical applications of bio-visualisation in the NIR spectral range, these NCs were embedded into silica microspheres which were further wrapped with amphiphilic polymer shells to ensure their water-compatibility. The resulting microspheres with embedded NCs could be easily dispersed in both toluene and water, while still exhibiting a dual-band emission in visible and NIR under both one- and two-photon excitation conditions.
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Affiliation(s)
| | - Ivan D Skurlov
- PhysNano Department, ITMO University, St Petersburg, 197101, Russia.
| | - Anastasiia V Sokolova
- Department of Materials Science and Engineering, and Center for Functional Photonics, City University of Hong Kong, Hong Kong SAR, 999077, China
| | - Alexander A Shimko
- Research Park, Saint Petersburg State University, St Petersburg, 199034, Russia
| | - Denis V Danilov
- Research Park, Saint Petersburg State University, St Petersburg, 199034, Russia
| | - Yuliya A Timkina
- PhysNano Department, ITMO University, St Petersburg, 197101, Russia.
| | - Maxim A Rider
- PhysNano Department, ITMO University, St Petersburg, 197101, Russia.
| | - Viktor V Zakharov
- PhysNano Department, ITMO University, St Petersburg, 197101, Russia.
| | | | - Natalya K Kuzmenko
- Research Center for Optical Materials Science, ITMO University, Saint Petersburg, 197101, Russia
| | | | - Evgeniy V Zhizhin
- Research Park, Saint Petersburg State University, St Petersburg, 199034, Russia
| | - Nadezhda A Maslova
- Research Park, Saint Petersburg State University, St Petersburg, 199034, Russia
| | | | | | - Valery G Golubev
- PhysNano Department, ITMO University, St Petersburg, 197101, Russia.
| | - Xiaoyu Zhang
- Key Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, Changchun 130012, China
| | - Weitao Zheng
- Key Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, Changchun 130012, China
| | - Anton N Tcypkin
- Laboratory of Quantum Processes and Measurements, ITMO University, Saint Petersburg, 197101, Russia
| | - Aleksandr P Litvin
- PhysNano Department, ITMO University, St Petersburg, 197101, Russia.
- Key Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Jilin University, Changchun 130012, China
- Laboratory of Quantum Processes and Measurements, ITMO University, Saint Petersburg, 197101, Russia
| | - Andrey L Rogach
- Department of Materials Science and Engineering, and Center for Functional Photonics, City University of Hong Kong, Hong Kong SAR, 999077, China
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Li X, Shen J, Zhou J, Zhu C, Chen W. Enhancing the dielectric and thermal properties of polytetrafluoroethylene-based composites through designing and constructing a novel interfacial structure. Heliyon 2024; 10:e25442. [PMID: 38322924 PMCID: PMC10844572 DOI: 10.1016/j.heliyon.2024.e25442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/18/2024] [Accepted: 01/26/2024] [Indexed: 02/08/2024] Open
Abstract
Polytetrafluoroethylene (PTFE) is widely used as a fundamental core material for high-frequency and high-speed signal transmission fields due to its excellent dielectric properties. However, the high coefficient of thermal expansion (CTE) characteristic of PTFE severely limits its practical application. The CTE of PTFE can be reduced by filling with SiO2, which is always accompanied by a rapid deterioration of dielectric properties due to the poor interfacial compatibility between SiO2 and PTFE matrix. In this paper, the challenge of synergistic regulation of dielectric and CTE properties for PTFE-based composites is overcome by constructing an interfacial structure with physical interactions. Micro-mesoporous SiO2 (mSiO2) is prepared and introduced as a filler, compared with smooth surface SiO2 (sSiO2), the presence of micro-mesoporous in mSiO2 allows PTFE molecular chains to be adsorbed on the surface or in the pore channels of mSiO2, which improves the interfacial combination of the mSiO2/PTFE composites through the physical interaction between mSiO2 and PTFE. The results show that mSiO2/PTFE composite exhibits a lower CTE (58 ppm °C-1) while maintaining a lower dielectric constant (εr, 2.29, 30 GHz) with dielectric loss (tan δ, 2.31 × 10-3, 30 GHz) at a filler addition of 30 vol%, as compared with that of the sSiO2/PTFE composites. This work provides a new strategy for fabricating PTFE-based composites with low CTE as well as low εr and tan δ.
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Affiliation(s)
- Xin Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Jie Shen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Jing Zhou
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Changqing Zhu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Wen Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
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3
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Balashova E, Levin AA, Pavlov S, Starukhin A, Fokin A, Kurdyukov D, Eurov D, Krichevtsov B. Synthesis and Study of Organic Nanostructures Fabricated by Inclusion of 2-Methylbenzimidazole Molecules in Nanotubes of Chrysotile Asbestos, Mesoporous Silica, and Nanopores of Borate Glasses. Int J Mol Sci 2023; 24:13740. [PMID: 37762043 PMCID: PMC10531229 DOI: 10.3390/ijms241813740] [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: 08/15/2023] [Revised: 08/27/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023] Open
Abstract
New organic nanostructures were synthesized by introducing 2-methylbenzimidazole (MBI) molecules from a melt, gas phase, or alcoholic solution into nanosized voids of borate porous glasses (PG), nanotubes of chrysotile asbestos (ChA), and mesoporous silica (MS). The incorporation of MBI into borate glasses with different pore sizes is accompanied by the appearance of several phases formed by nanocrystallites which have a MBI crystal structure, but somewhat differ in lattice parameters. The size of some crystallites significantly exceeds the size of nanopores, which indicates the presence of long-scale correlations of the crystal structure. The size of MBI nanocrystallites in ChA was close to the diameter of nanotubes (D ~10 nm), which shows the absence of crystal structure correlations. The XRD pattern of mesoporous silica filled by MBI does not exhibit reflections caused by MBI and a presence of MBI was confirmed only by the analysis of correlation function. The incorporation of MBI molecules into matrices is observed through optical IR absorption spectroscopy (FTIR) and photoluminescence. Introducing MBI in ChA and MS is followed by the appearance of bright green photoluminescence, the spectral structure of which is analogous to MBI crystals but slightly shifted in the blue region, probably due to a quantum-size effect. The influence of MBI inclusion in PG and ChA on the permittivity, dielectric losses, conductivity, and parameters of their hopping conductivity is analyzed.
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Affiliation(s)
- Elena Balashova
- Ioffe Institute, Russian Academy of Sciences, Politechnicheskaya 26, 194021 Saint Petersburg, Russia; (A.A.L.); (S.P.); (A.S.); (A.F.); (D.K.); (D.E.); (B.K.)
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Fabrication and Reinforcement of Macro- and Mesoporous Bimodal Materials from Mesoporous Silica-Alumina Spheres and Their Applications to Acid Catalysts and Adsorbents. CATALYSIS SURVEYS FROM ASIA 2022. [DOI: 10.1007/s10563-022-09385-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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5
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Stovpiaga EY, Eurov DA, Kurdyukov DA, Glebova NV, Kirilenko DA, Tomkovich MV, Golubev VG. Formation of spherical microporous silica particles from organosilane and quat molecules. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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6
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Curley R, Banta RA, Garvey S, Holmes JD, Flynn EJ. Biomimetic spherical silica production using phosphatidylcholine and soy lecithin. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01839-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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7
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Eurov DA, Kurdyukov DA, Medvedev AV, Kirilenko DA, Tomkovich MV, Golubev VG. Micro-mesoporous submicron silica particles with pore size tunable in a wide range: synthesis, properties and prospects for LED manufacturing. NANOTECHNOLOGY 2021; 32:215604. [PMID: 33588396 DOI: 10.1088/1361-6528/abe66e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 02/15/2021] [Indexed: 06/12/2023]
Abstract
An approach has been developed that allows the synthesis of submicron spherical silica particles with a controlled micro-mesoporous structure possessing a large specific surface area (up to 1300 m2g-1). Particle synthesis is carried out by the hydrolysis of a mixture of various organosilanes mostly associated either with CTAB or with each other. A change in the concentration of CTAB in the reaction mixture apparently leads to a change in the formation mechanism of nuclei for the silica particle growth, which allows for varying the diameter of the synthesized particles in the range from 40-450 nm. The effect of the composition of the silica precursor ([3-(methacryloyloxy)propyl]trimethoxysilane, (3-aminopropyl)triethoxysilane and tetraethoxysilane) on the formation process and porosity of the resulting particles is studied. It was shown that by simply varying the ratio of organosilanes in the composition of the precursor, one can control the pore diameter of the particles in a wide range from 0.6-15 nm. The large-pore (up to 15 nm) silica particles are used as a matrix for the spatial distribution of luminescent carbon dots. The incorporation of carbon dots into SiO2particles prevents their aggregation leading to emission quenching after drying, thus allowing us to obtain highly luminescent composite particles. LEDs based on the obtained composite material show bright visible luminescence with spectral characteristics similar to that of a commercial cold white LED.
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Cherevkov S, Azizov R, Sokolova A, Nautran V, Miruschenko M, Arefina I, Baranov M, Kurdyukov D, Stovpiaga E, Golubev V, Baranov A, Ushakova E. Interface Chemical Modification between All-Inorganic Perovskite Nanocrystals and Porous Silica Microspheres for Composite Materials with Improved Emission. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:E119. [PMID: 33430213 PMCID: PMC7825651 DOI: 10.3390/nano11010119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/02/2021] [Accepted: 01/04/2021] [Indexed: 11/16/2022]
Abstract
In recent years, there has been rapid progress in the development of photonic devices based on lead halide perovskite nanocrystals since they possess a set of unique optical and charge transport properties. However, the main limiting factor for their subsequent application is poor stability against exposure to adverse environmental conditions. In this work, a study of a composite material based on perovskite CsPbBr3 nanocrystals embedded in porous silica microspheres is presented. We developed two different approaches to change the interface between nanocrystals and the surface of the microsphere pores: surface treatment of (i) nanocrystals or (ii) microspheres. The surface modification with tetraethylorthosilicate molecules not only increased stability but also improved the optical responses of the composite material. The position of the emission band remained almost unchanged, but its lifetime increased significantly compared to the initial value. The improvement of the optical performance via surface modification with tetraethylorthosilicate molecules also works for the lead-free Bi-doped Cs2AgInCl6 double perovskite nanocrystals leading to increased stability of their optical responses at ambient conditions. These results clearly demonstrate the advantage of a composite material that can be used in novel photonic devices with improved performance.
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Affiliation(s)
- Sergei Cherevkov
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Ruslan Azizov
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Anastasiia Sokolova
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Valeriia Nautran
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Mikhail Miruschenko
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Irina Arefina
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Mikhail Baranov
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Dmitry Kurdyukov
- Laboratory of Amorphous Semiconductor Physics, Ioffe Institute, 194021 Saint Petersburg, Russia; (D.K.); (E.S.); (V.G.)
| | - Ekaterina Stovpiaga
- Laboratory of Amorphous Semiconductor Physics, Ioffe Institute, 194021 Saint Petersburg, Russia; (D.K.); (E.S.); (V.G.)
| | - Valery Golubev
- Laboratory of Amorphous Semiconductor Physics, Ioffe Institute, 194021 Saint Petersburg, Russia; (D.K.); (E.S.); (V.G.)
| | - Alexander Baranov
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Elena Ushakova
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
- Department of Materials Science and Engineering and Center for Functional Photonics (CFP), City University of Hong Kong, Hong Kong, China
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Fujimoto K, Watanabe K, Ishikawa S, Ishii H, Suga K, Nagao D. Pore expanding effect of hydrophobic agent on 100 nm-sized mesoporous silica particles estimated based on Hansen solubility parameters. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125647] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Lee J, Kim J, You DG, Kim S, Um W, Jeon J, Kim CH, Joo H, Yi G, Park JH. Cavitation-Inducible Mesoporous Silica-Titania Nanoparticles for Cancer Sonotheranostics. Adv Healthc Mater 2020; 9:e2000877. [PMID: 32893995 DOI: 10.1002/adhm.202000877] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/05/2020] [Indexed: 11/05/2022]
Abstract
Sonodynamic therapy has received increasing attention for cancer treatments as an alternative to photodynamic therapy. However, its clinical applications have been limited by the lack of a sonosensitizer that is capable of producing sufficient amounts of reactive oxygen species (ROS) in response to ultrasound (US) exposure. Herein, PEGylated mesoporous silica-titania nanoparticles (P-MSTNs) are prepared and used as US-responsive nanocarriers for cancer sonotheranostics. Perfluorohexane (PFH), which is chosen as the gas precursor, is physically encapsulated into P-MSTNs using the oil-in-water emulsion method. Owing to the vaporization of the gas precursor, PFH@P-MSTNs (137 nm in diameter) exhibit a strong photoacoustic signal in vivo for at least 6 h. Compared to P-MSTNs, PFH@P-MSTNs generate significantly higher amounts of ROS due to the nanobubble-induced cavitation in the presence of US. When systemically administered to tumor-bearing mice, PFH@P-MSTNs effectively accumulate in the tumor site due to the passive targeting mechanism. Consequently, PFH@P-MSTNs show much higher antitumor efficacy than P-MSTNs due to the enhanced cavitation-mediated ROS generation in response to US exposure. It is considered that PFH@P-MSTNs may hold significant potential for cancer sonotheranostics.
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Affiliation(s)
- Jeongjin Lee
- Department of Health Sciences and Technology SAIHST Sungkyunkwan University 81 Irwon‐ro, Gangnam‐gu Seoul 06351 Republic of Korea
| | - Jae‐Hyun Kim
- School of Chemical Engineering College of Engineering Sungkyunkwan University 2066 Seobu‐ro, Jangan‐gu Suwon 16419 Republic of Korea
| | - Dong Gil You
- School of Chemical Engineering College of Engineering Sungkyunkwan University 2066 Seobu‐ro, Jangan‐gu Suwon 16419 Republic of Korea
| | - Sohyun Kim
- School of Chemical Engineering College of Engineering Sungkyunkwan University 2066 Seobu‐ro, Jangan‐gu Suwon 16419 Republic of Korea
| | - Wooram Um
- School of Chemical Engineering College of Engineering Sungkyunkwan University 2066 Seobu‐ro, Jangan‐gu Suwon 16419 Republic of Korea
| | - Jueun Jeon
- School of Chemical Engineering College of Engineering Sungkyunkwan University 2066 Seobu‐ro, Jangan‐gu Suwon 16419 Republic of Korea
| | - Chan Ho Kim
- School of Chemical Engineering College of Engineering Sungkyunkwan University 2066 Seobu‐ro, Jangan‐gu Suwon 16419 Republic of Korea
| | - Hyeyeon Joo
- School of Chemical Engineering College of Engineering Sungkyunkwan University 2066 Seobu‐ro, Jangan‐gu Suwon 16419 Republic of Korea
| | - Gi‐Ra Yi
- School of Chemical Engineering College of Engineering Sungkyunkwan University 2066 Seobu‐ro, Jangan‐gu Suwon 16419 Republic of Korea
| | - Jae Hyung Park
- Department of Health Sciences and Technology SAIHST Sungkyunkwan University 81 Irwon‐ro, Gangnam‐gu Seoul 06351 Republic of Korea
- School of Chemical Engineering College of Engineering Sungkyunkwan University 2066 Seobu‐ro, Jangan‐gu Suwon 16419 Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS) Sungkyunkwan University 2066 Seobu‐ro, Jangan‐gu Suwon 16419 Republic of Korea
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11
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Baliś A, Wolski K, Zapotoczny S. Thermoresponsive Polymer Gating System on Mesoporous Shells of Silica Particles Serving as Smart Nanocontainers. Polymers (Basel) 2020; 12:E888. [PMID: 32290489 PMCID: PMC7240617 DOI: 10.3390/polym12040888] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/06/2020] [Accepted: 04/08/2020] [Indexed: 01/12/2023] Open
Abstract
Spherical silica nanoparticles with solid cores and mesoporous shells (SCMS) were decorated with thermoresponsive polymer brushes that were shown to serve as macromolecular valves to control loading and unloading of a model dye within the mesopores. Thermoresponsive poly(N-isopropylacrylamide) (PNIPAM) brushes were grafted from the surfaces of both solid core (SC) and SCMS particles of similar size using surface-initiated atom transfer radical polymerization. Both systems based on porous (SCMS-PNIPAM) and nonporous (SC-PNIPAM) particles were characterized using cryo-TEM, thermogravimetry and elemental analysis to determine the structure and composition of the decorated nanoparticles. The grafted PNIPAM brushes were found to be responsive to temperature changes enabling temperature-controlled gating of the pores. The processes of loading and unloading in the obtained systems were examined using a model fluorescent dye-rhodamine 6G. Polymer brushes in SCMS-PNIPAM systems were shown to serve as molecular valves enabling significant adsorption (loading) of the dye inside the pores with respect to the SC-PNIPAM (no pores) and SCMS (no valves) systems. The effective unloading of the fluorescent cargo molecules from the decorated nanoparticles was achieved in a water/methanol solution. The obtained SCMS-PNIPAM particles may be used as smart nanocontainers or nanoreactors offering also facile isolation from the suspension due to the presence of dense cores.
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Affiliation(s)
| | | | - Szczepan Zapotoczny
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland; (A.B.); (K.W.)
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12
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Eurov DA, Shvidchenko AV, Kurdyukov DA. Electrostatic Stabilization of Hydrosols of Calcium Carbonate Nanoparticles Synthesized by the Template Method. COLLOID JOURNAL 2020. [DOI: 10.1134/s1061933x20020040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Starukhin AN, Nelson DK, Eurov DA, Kurdyukov DA, Golubev VG. Manifestation of fluorophore segmental motion in carbon dots in steady-state fluorescence experiments. Phys Chem Chem Phys 2020; 22:8401-8408. [DOI: 10.1039/d0cp00056f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Perrin plot of carbon dots in aqueous glycerol solutions of different viscosity at T = 298 K.
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14
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Catalano F, Pompa PP. Design Rules for Mesoporous Silica toward the Nanosize: A Systematic Study. ACS APPLIED MATERIALS & INTERFACES 2019; 11:47237-47246. [PMID: 31799824 DOI: 10.1021/acsami.9b16135] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Mesoporous silica nanoparticles (MSNs) are one of the most frequently employed inorganic materials for catalysis and nanomedicine applications. Nonetheless, a complete control of MSN synthesis parameters aimed at standardizing particle properties is still far from complete, being one of the reasons underlying heterogeneity in their chemical-physical properties, as well as in their biological outcomes. Here, transmission electron microscopy, X-ray diffraction, and volumetric analysis, together with dynamic light scattering and ζ-potential measurements, were combined to carefully characterize different MSNs through a systematic investigation of the role and effectiveness of different factors, such as reaction temperature, time, and pH, on the resulting particle size, texture, and dispersion properties. This methodological approach allowed the implementation of design rules for size-, shape-, and structure-controlled MSNs in the range between 170 and 50 nm.
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Affiliation(s)
- Federico Catalano
- Nanobiointeractions & Nanodiagnostics , Istituto Italiano di Tecnologia (IIT) , Via Morego, 30 , 16163 Genova , Italy
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics , Istituto Italiano di Tecnologia (IIT) , Via Morego, 30 , 16163 Genova , Italy
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Wang Z, Gao X, Wen G, Tian P, Zhong L, Guo Z. Polysulfide microspheres with chemical modification for generation of interfaces with macroscopic colour variation and biomimetic superhydrophobicity. NANOSCALE ADVANCES 2019; 1:281-290. [PMID: 36132471 PMCID: PMC9473270 DOI: 10.1039/c8na00011e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 07/23/2018] [Indexed: 06/11/2023]
Abstract
Both superwettability and structural colours have attracted considerable attention in recent years. In addition, the combination of structural colours and superwettability could endow materials with broader application prospects. The combination provides a new strategy to design novel functional materials, and there are many studies pertaining to these materials that have been reported in recent years. Herein, a polysulfide (PSF) superhydrophobic coating was synthesized successfully. The PSF superhydrophobic coating possesses excellent superhydrophobicity, oleophobicity for diesel and macroscopic structural colour variation when wetted. The colour is changed when the coating is wetted and it returns to its original colour after drying. In addition, the surface presents better reusability and thermostability which satisfies various daily needs. The PSF superhydrophobic coating can be considered as an excellent candidate for designing wetting responsive materials, and it has enormous application potential in the fields of detection, sensing, anti-counterfeiting and security. For the first time, we present a novel and low-cost strategy to fabricate materials with both superhydrophobicity and structural colour, offering significant insights into the practical application of these functional materials.
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Affiliation(s)
- Zelinlan Wang
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University Wuhan 430062 People's Republic of China +86-931-8277088 +86-931-4968105
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 People's Republic of China
| | - Xiaoyu Gao
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University Wuhan 430062 People's Republic of China +86-931-8277088 +86-931-4968105
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 People's Republic of China
| | - Gang Wen
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University Wuhan 430062 People's Republic of China +86-931-8277088 +86-931-4968105
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 People's Republic of China
| | - Pan Tian
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University Wuhan 430062 People's Republic of China +86-931-8277088 +86-931-4968105
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 People's Republic of China
| | - Lieshuang Zhong
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University Wuhan 430062 People's Republic of China +86-931-8277088 +86-931-4968105
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 People's Republic of China
| | - Zhiguang Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University Wuhan 430062 People's Republic of China +86-931-8277088 +86-931-4968105
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 People's Republic of China
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16
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Kurdyukov DA, Eurov DA, Rabchinskii MK, Shvidchenko AV, Baidakova MV, Kirilenko DA, Koniakhin SV, Shnitov VV, Sokolov VV, Brunkov PN, Dideikin AT, Sgibnev YM, Mironov LY, Smirnov DA, Vul' AY, Golubev VG. Controllable spherical aggregation of monodisperse carbon nanodots. NANOSCALE 2018; 10:13223-13235. [PMID: 29971299 DOI: 10.1039/c8nr01900b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Monodisperse carbon nanodots (MCNDs) having an identical composition, structure, shape and size possess identical chemical and physical properties, making them highly promising for various technical and medical applications. Herein, we report a facile and effective route to obtain monodisperse carbon nanodots 3.5 ± 0.9 nm in size by thermal decomposition of organosilane within the pores of monodisperse mesoporous silica particles with subsequent removal of the silica template. Structural studies demonstrated that the MCNDs we synthesized consist of ∼7-10 defective graphene layers that are misoriented with respect to each other and contain various oxygen-containing functional groups. It was demonstrated that, owing to their identical size and chemical composition, the MCNDs are formed via coagulation primary aggregates ∼10-30 nm in size, which are, in turn, combined into secondary porous spherical aggregates ∼100-200 nm in diameter. The processes of coagulation of MCNDs and peptization of their hierarchical aggregates are fully reversible and can be controlled by varying the MCND concentration or the pH value of the hydrosols. Submicrometer spherical aggregates of MCNDs are not disintegrated as the hydrosol is dried. The thus obtained porous spherical aggregates of MCNDs are promising for drug delivery as a self-disassembling container for medicinal preparations.
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17
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Tailored Synthesis of Core-Shell Mesoporous Silica Particles-Optimization of Dye Sorption Properties. NANOMATERIALS 2018; 8:nano8040230. [PMID: 29642621 PMCID: PMC5923560 DOI: 10.3390/nano8040230] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 03/30/2018] [Accepted: 04/05/2018] [Indexed: 11/17/2022]
Abstract
Monodisperse spherical silica particles, with solid cores and mesoporous shells (SCMS), were synthesized at various temperatures using a one-pot method utilizing a cationic surfactant template. The temperature of the synthesis was found to significantly affect the diameters of both the cores (ca. 170-800 nm) and shells (ca. 11-80 nm) of the particles, which can be tailored for specific applications that require a high specific surface area of the nanocarriers (mesoporous shells) and simultaneously their mechanical robustness for, e.g., facile isolation from suspensions (dense cores). The applied method enabled the formation of the relatively thick mesoporous shells at conditions below room temperature. Radially ordered pores with narrow distributions of their sizes in 3-4 nm range were found in the shells. The adsorption ability of the SCMS particles was studied using rhodamine 6G as a model dye. Decolorization of the dye solution in the presence of the SCMS particles was correlated with their structure and specific surface area and reached its maximum for the particles synthesized at 15 °C. The presented strategy may be applied for the fine-tuning of the structure of SCMS particles and the enhancement of their adsorption capabilities.
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18
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Starukhin AN, Nelson DK, Kurdyukov DA, Eurov DA, Golubev VG. Effect of dark states on the fluorescence of carbon nanodots. Phys Chem Chem Phys 2018; 20:29045-29050. [DOI: 10.1039/c8cp05034a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The nonlinear fluorescence properties of colloidal carbon dot solutions in glycerol were investigated at T = 298 K and 77 K.
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19
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Hwang SH, Miller JB, Shahsavari R. Biomimetic, Strong, Tough, and Self-Healing Composites Using Universal Sealant-Loaded, Porous Building Blocks. ACS APPLIED MATERIALS & INTERFACES 2017; 9:37055-37063. [PMID: 28991434 DOI: 10.1021/acsami.7b12532] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Many natural materials, such as nacre and dentin, exhibit multifunctional mechanical properties via structural interplay between compliant and stiff constituents arranged in a particular architecture. Herein, we present, for the first time, the bottom-up synthesis and design of strong, tough, and self-healing composite using simple but universal spherical building blocks. Our composite system is composed of calcium silicate porous nanoparticles with unprecedented monodispersity over particle size, particle shape, and pore size, which facilitate effective loading and unloading with organic sealants, resulting in 258% and 307% increases in the indentation hardness and elastic modulus of the compacted composite. Furthermore, heating the damaged composite triggers the controlled release of the nanoconfined sealant into the surrounding area, enabling moderate recovery in strength and toughness. This work paves the path towards fabricating a novel class of biomimetic composites using low-cost spherical building blocks, potentially impacting bone-tissue engineering, insulation, refractory and constructions materials, and ceramic matrix composites.
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20
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Ni-functionalized submicron mesoporous silica particles as a sorbent for metal affinity chromatography. J Chromatogr A 2017; 1513:140-148. [DOI: 10.1016/j.chroma.2017.07.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 07/11/2017] [Accepted: 07/11/2017] [Indexed: 11/24/2022]
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21
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Eurov DA, Kirilenko DA, Kurdyukov DA. Nucleation of silica Stöber particles in the presence of methacryloxypropyltrimethoxysilane. COLLOID JOURNAL 2017. [DOI: 10.1134/s1061933x17010045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Yamamoto E, Mori S, Shimojima A, Wada H, Kuroda K. Fabrication of colloidal crystals composed of pore-expanded mesoporous silica nanoparticles prepared by a controlled growth method. NANOSCALE 2017; 9:2464-2470. [PMID: 27824195 DOI: 10.1039/c6nr07416b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Colloidal crystals composed of mesoporous silica nanoparticles (MSNs) are expected to have various applications because of their unique hierarchical structures and tunable functions. The expansion of the mesopore size is important for introducing guest species which cannot be accommodated by using conventional colloidal crystals of MSNs; however, the preparation of MSNs with a controllable pore size, suitable for the fabrication of colloidal crystals, still remains a challenge. In this study, we fabricated colloidal crystals composed of pore-expanded MSNs using a sophisticated particle growth method to control the pore size of colloidal MSNs while retaining their monodispersity high enough to form colloidal crystals. By adding triisopropylbenzene (TIPB) only during the growth process with the stepwise addition of tetrapropoxysilane (TPOS), the particle size can be tuned from 60 nm to 100 nm, while the pore size can be tuned from 3 nm to ten plus several nm which is the largest size among the previous MSNs capable of forming colloidal crystals. These novel colloidal crystals should contribute to the expansion of nanomaterials science.
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Affiliation(s)
- Eisuke Yamamoto
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Ohkubo 3-4-1, Shinjuku-ku, Tokyo, 169-8555, Japan.
| | - Seiya Mori
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Ohkubo 3-4-1, Shinjuku-ku, Tokyo, 169-8555, Japan.
| | - Atsushi Shimojima
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Ohkubo 3-4-1, Shinjuku-ku, Tokyo, 169-8555, Japan.
| | - Hiroaki Wada
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Ohkubo 3-4-1, Shinjuku-ku, Tokyo, 169-8555, Japan.
| | - Kazuyuki Kuroda
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Ohkubo 3-4-1, Shinjuku-ku, Tokyo, 169-8555, Japan. and Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, Nishiwaseda 2-8-26, Shinjuku-ku, Tokyo, 169-0051, Japan
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23
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Li F, Tang B, Wu S, Zhang S. Facile Synthesis of Monodispersed Polysulfide Spheres for Building Structural Colors with High Color Visibility and Broad Viewing Angle. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1602565. [PMID: 27813250 DOI: 10.1002/smll.201602565] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/30/2016] [Indexed: 06/06/2023]
Abstract
The synthesis and assembly of monodispersed colloidal spheres are currently the subject of extensive investigation to fabricate artificial structural color materials. However, artificial structural colors from general colloidal crystals still suffer from the low color visibility and strong viewing angle dependence which seriously hinder their practical application in paints, colorimetric sensors, and color displays. Herein, monodispersed polysulfide (PSF) spheres with intrinsic high refractive index (as high as 1.858) and light-absorbing characteristics are designed, synthesized through a facile polycondensation and crosslinking process between sodium disulfide and 1,2,3-trichloropropane. Owing to their high monodispersity, sufficient surface charge, and good dispersion stability, the PSF spheres can be assembled into large-scale and high-quality 3D photonic crystals. More importantly, high structural color visibility and broad viewing angle are easily achieved because the unique features of PSF can remarkably enhance the relative reflectivity and eliminate the disturbance of scattering and background light. The results of this study provide a simple and efficient strategy to create structural colors with high color visibility, which is very important for their practical application.
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Affiliation(s)
- Feihu Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Bingtao Tang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Suli Wu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Shufen Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
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24
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Yamamoto E, Kuroda K. Colloidal Mesoporous Silica Nanoparticles. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2016. [DOI: 10.1246/bcsj.20150420] [Citation(s) in RCA: 164] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Eisuke Yamamoto
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University
| | - Kazuyuki Kuroda
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University
- Kagami Memorial Research Institute for Materials Science and Technology, Waseda University
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25
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Liu Y, Yang P, Li J, Matras-Postolek K, Yue Y, Huang B. Formation of SiO2@SnO2 core–shell nanofibers and their gas sensing properties. RSC Adv 2016. [DOI: 10.1039/c5ra25878b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
SiO2@SnO2 core–shell nanofibers were prepared by a single-spinneret electrospinning route and subsequent calcination process. Both the ratio of Sn and Si and the special core–shell structure played significant roles in gas sensing performance.
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Affiliation(s)
- Yunshi Liu
- School of Material Science and Engineering
- University of Jinan
- Jinan
- P. R. China
| | - Ping Yang
- School of Material Science and Engineering
- University of Jinan
- Jinan
- P. R. China
| | - Jia Li
- School of Material Science and Engineering
- University of Jinan
- Jinan
- P. R. China
| | | | - Yunlong Yue
- School of Material Science and Engineering
- University of Jinan
- Jinan
- P. R. China
| | - Baibiao Huang
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan
- P. R. China
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26
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Khanadeev VA, Khlebtsov BN, Klimova SA, Tsvetkov MY, Bagratashvili VN, Sukhorukov GB, Khlebtsov NG. Large-scale high-quality 2D silica crystals: dip-drawing formation and decoration with gold nanorods and nanospheres for SERS analysis. NANOTECHNOLOGY 2014; 25:405602. [PMID: 25213290 DOI: 10.1088/0957-4484/25/40/405602] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
High-quality colloidal crystals (CCs) are important for use in photonic research and as templates for large-scale plasmonic SERS substrates. We investigated how variations in temperature, colloid concentration, and dip-drawing parameters (rate, incubation time, etc) affect the structure of 2D CCs formed by highly monodisperse silica nanoparticles (SiNPs) synthesized in an l-arginine solution and regrown by a modified Stöber method. The best quality 2D CCs were obtained with aqueous 12 wt% colloids at a temperature of 25 °C, an incubation time of 1 min, and a drawing rate of 50 mm min(-1). Assembling of gold nanorods (GNRs) on 2D CCs resulted in the formation of ring-like chains with a preferential tail-to-tail orientation along the hexagonal boundaries. To the best of our knowledge, this is the first time that such nanostructures have been prepared. Owing to the preferential tail-to-tail packing of GNRs, 2D SiNP CC + GNR substrates demonstrated an analytical SERS enhancement of about 8000, which was 10 to 15 times higher than that for self-assembled GNRs on a silicon wafer. In addition, the analytical SERS enhancement was almost 60 times lower after replacing the nanorods in 2D SiNP CC + GNR substrates with 25 nm gold nanospheres.
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Affiliation(s)
- Vitaly A Khanadeev
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia. Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov 410012, Russia
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