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Wang J, Li P, Zhang R, Zhang M, Wang C, Zhao K, Wang J, Wang N, Xing D. Ultrathin Flexible Silica Nanosheets with Surface Chemistry-Modulated Affinity to Mammalian Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401772. [PMID: 38967183 DOI: 10.1002/smll.202401772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 06/12/2024] [Indexed: 07/06/2024]
Abstract
Flexibility of nanomaterials is challenging but worthy to tune for biomedical applications. Biocompatible silica nanomaterials are under extensive exploration but are rarely observed to exhibit flexibility despite the polymeric nature. Herein, a facile one-step route is reported to ultrathin flexible silica nanosheets (NSs), whose low thickness and high diameter-to-thickness ratio enables folding. Thickness and diameter can be readily tuned to enable controlled flexibility. Mechanism study reveals that beyond the commonly used surfactant, the "uncommon" one bearing two hydrophobic tails play a guiding role in producing sheeted/layered/shelled structures, while addition of ethanol appropriately relieved the strong interfacial tension of the assembled surfactants, which will otherwise produce large curled sheeted structures. With these ultrathin NSs, it is further shown that the cellular preference for particle shape and rigidity is highly dependent on surface chemistry of nanoparticles: under high particle-cell affinity, NSs, and especially the flexible ones will be preferred by mammalian cells for internalization or attachment, while this preference is basically invalid when the affinity is low. Therefore, properties of the ultrathin silica NSs can be effectively expanded and empowered by surface chemistry to realize improved bio-sensing or drug delivery.
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Affiliation(s)
- Jie Wang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- CAS Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, China Academy of Sciences, Qingdao, 266071, China
| | - Ping Li
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
| | - Renshuai Zhang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
| | - Miao Zhang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
| | - Chao Wang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
| | - Kaihua Zhao
- Department of Breast Surgery, Qingdao Central Hospital, University of Health and Rehabilitation Sciences, Qingdao, 266042, China
| | - Jing Wang
- CAS Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, China Academy of Sciences, Qingdao, 266071, China
| | - Ning Wang
- CAS Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, China Academy of Sciences, Qingdao, 266071, China
| | - Dongming Xing
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
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2
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Zhang N, Jiang L, Yue Y, Zhao X, Hu Y, Shi Y, Zhao L, Deng D. Metastable FeSe 2 nanosheets as a one-for-all platform for stepwise synergistic tumor therapy. J Mater Chem B 2024; 12:6466-6479. [PMID: 38864401 DOI: 10.1039/d4tb00825a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
The urgent need to curb the rampant rise in cancer has impelled the rapid development of nanomedicine. Under the above issue, transition metal compounds have received special attention considering their physicochemical and biochemical properties. However, how to take full advantage of the valuable characteristics of nanomaterials based on their spatial structures and chemical components for synergistic tumor therapy is a worthwhile exploration. In this work, a tailored two-dimensional (2D) FeSe2 nanosheet (NS) platform is proposed, which integrates enzyme activity and drug efficacy through the regulation of itsstability. Specifically, metastable FeSe2 NSs can serve as dual nanozymes in an intact state, depleting GSH and increasing ROS to induce oxidative stress in the tumor microenvironment (TME). With the gradual degradation of the FeSe2 in TME, its degraded products can amplify the Fenton reaction and GSH consumption, enhance the expression of inflammatory factors, and achieve effective near-infrared (NIR)-light irradiation-enhanced synergistic photothermal therapy (PTT) and chemodynamic therapy (CDT). Our exploration further confirmed such a strategy that may integrate carrier activity and drug action into a metastable nanoplatform for tumor synergistic therapy. These results prompt the consideration of the rational design of a one-for-all carrier that can exhibit multifunctional properties and nanomedicine efficacy for versatile therapeutic applications in the future.
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Affiliation(s)
- Naiyue Zhang
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Liwen Jiang
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China.
| | - Yumeng Yue
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Xiaomin Zhao
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China.
| | - Yanwei Hu
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Yali Shi
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Liying Zhao
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China.
| | - Dawei Deng
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China.
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3
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Rhakho N, Saxena M, Pradhan NR, H Jadhav A, Altaee A, Samal AK. Transformative Dynamics: Self-Assembly of Iron Oxide Hydroxide Nanorods into Iron Oxide Microcubes for Enhanced Perfluoroalkyl Substance Remediation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:10184-10194. [PMID: 38699923 DOI: 10.1021/acs.langmuir.4c00472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
We report the controlled synthesis of iron oxide microcubes (IOMCs) through the self-assembly arrays of ferric oxide hydroxide nanorods (NRs). The formation of IOMCs involves a complex interplay of nucleation, self-assembly, and growth mechanisms influenced by time, thermal treatment, and surfactant dynamics. The self-assembly of vertically aligned NRs into IOMCs is controlled by dynamic magnetism properties and capping agents like cetyltrimethylammonium bromide (CTAB), whose concentration and temperature modulation dictate growth kinetics and structural uniformity. These controlled structural growths were obtained via a hydrothermal process at 120 °C at various intervals of 8, 16, 24, and 32 h in the presence of CTAB as the capping agent. In this hydrothermal method, the formation of vertically oriented NR arrays was observed without the presence of ligands, binders, harsh drying techniques, and solvent evaporation. The formation of the self-assembly of NRs to IOMCs is obtained with an increase in saturated magnetization to attain the most stable state. The synthesized IOMCs have a uniform size, quasi-shape, and excellent dispersion. Due to its excellent magnetic and catalytic properties, IOMCs were employed to remove the various emerging pollutants known as per- and polyfluorinated substances (PFAS). Various microscopic and spectroscopic techniques were employed for the characterization and interaction studies of IOMCs with various PFAS. The interaction between IOMCs and perfluoroalkyl substances (PFAS) was investigated, revealing strong adsorption tendencies facilitated by electrostatic interactions, as evidenced by UV-vis and FT-IR spectroscopic studies. Furthermore, the higher magnetic and positive surface charge of IOMCs is responsible for an effective remediation eliminating any secondary pollution with ease of recovery after the sorption interaction studies, thereby making it practically worthwhile.
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Affiliation(s)
- Novuhulu Rhakho
- Centre for Nano and Material Science, JAIN (Deemed-to-be University), Jain Global Campus, Bangalore 562112, India
| | - Manav Saxena
- Centre for Nano and Material Science, JAIN (Deemed-to-be University), Jain Global Campus, Bangalore 562112, India
| | - Nihar R Pradhan
- Department of Chemistry, Physics and Atmospheric Sciences, Jackson State University, 1400 John R. Lynch Street, Jackson, Mississippi 39217, United States
| | - Arvind H Jadhav
- Centre for Nano and Material Science, JAIN (Deemed-to-be University), Jain Global Campus, Bangalore 562112, India
| | - Ali Altaee
- Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney, 15 Broadway, Sydney, NSW 2007, Australia
| | - Akshaya K Samal
- Centre for Nano and Material Science, JAIN (Deemed-to-be University), Jain Global Campus, Bangalore 562112, India
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Cao Y, Luo B, Javaid A, Jung HJ, Ma T, Lim C, Emre A, Wang X, Kotov NA. Complex Materials with Stochastic Structural Patterns: Spiky Colloids with Enhanced Charge Storage Capacity. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305085. [PMID: 38036421 PMCID: PMC10811480 DOI: 10.1002/advs.202305085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 10/05/2023] [Indexed: 12/02/2023]
Abstract
Self-assembled materials with complex nanoscale and mesoscale architecture attract considerable attention in energy and sustainability technologies. Their high performance can be attributed to high surface area, quantum effects, and hierarchical organization. Delineation of these contributions is, however, difficult because complex materials display stochastic structural patterns combining both order and disorder, which is difficult to be consistently reproduced yet being important for materials' functionality. Their compositional variability make systematic studies even harder. Here, a model system of FeSe2 "hedgehog" particles (HPs) was selected to gain insight into the mechanisms of charge storage n complex nanostructured materials common for batteries and supercapacitors. Specifically, HPs represent self-assembled biomimetic nanomaterials with a medium level of complexity; they display an organizational pattern of spiky colloids with considerable disorder yet non-random; this patternt is consistently reproduced from particle to particle. . It was found that HPs can accommodate ≈70× greater charge density than spheroidal nano- and microparticles. Besides expanded surface area, the enhanced charge storage capacity was enabled by improved hole transport and reversible atomic conformations of FeSe2 layers in the blade-like spikes associated with the rotatory motion of the Se atoms around Fe center. The dispersibility of HPs also enables their easy integration into energy storage devices. HPs quadruple stored electrochemical energy and double the storage modulus of structural supercapacitors.
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Affiliation(s)
- Yuan Cao
- Department of Chemical EngineeringUniversity of MichiganAnn ArborMI48109USA
- Biointerface InstituteUniversity of MichiganAnn ArborMI48109USA
| | - Bingcheng Luo
- College of ScienceChina Agriculture UniversityBeijing100083China
| | - Atif Javaid
- Department of Chemical EngineeringUniversity of MichiganAnn ArborMI48109USA
- Biointerface InstituteUniversity of MichiganAnn ArborMI48109USA
- Department of Polymer EngineeringUniversity of Engineering and TechnologyG. T. RoadLahore54890Pakistan
- Department of Materials Science and EngineeringUniversity of MichiganAnn ArborMI48109USA
| | - Hong Ju Jung
- Department of Chemical EngineeringUniversity of MichiganAnn ArborMI48109USA
- Biointerface InstituteUniversity of MichiganAnn ArborMI48109USA
- Center for Complex Particle Systems (COMPASS)University of MichiganAnn ArborMI48109USA
| | - Tao Ma
- Department of Materials Science and EngineeringUniversity of MichiganAnn ArborMI48109USA
- Michigan Center for Materials CharacterizationUniversity of MichiganAnn ArborMI48109USA
| | - Chung‐Man Lim
- Biointerface InstituteUniversity of MichiganAnn ArborMI48109USA
- Department of Materials Science and EngineeringUniversity of MichiganAnn ArborMI48109USA
- Center for Complex Particle Systems (COMPASS)University of MichiganAnn ArborMI48109USA
| | - Ahmet Emre
- Department of Chemical EngineeringUniversity of MichiganAnn ArborMI48109USA
- Biointerface InstituteUniversity of MichiganAnn ArborMI48109USA
- Center for Complex Particle Systems (COMPASS)University of MichiganAnn ArborMI48109USA
| | - Xiaohui Wang
- School of Materials Science and EngineeringTsinghua UniversityBeijing100084China
| | - Nicholas A. Kotov
- Department of Chemical EngineeringUniversity of MichiganAnn ArborMI48109USA
- Biointerface InstituteUniversity of MichiganAnn ArborMI48109USA
- Department of Materials Science and EngineeringUniversity of MichiganAnn ArborMI48109USA
- Center for Complex Particle Systems (COMPASS)University of MichiganAnn ArborMI48109USA
- Department of Macromolecular Science and EngineeringUniversity of MichiganAnn ArborMI48109USA
- Department of AeronauticsFaculty of EngineeringImperial College LondonSouth Kensington CampusLondonSW7 2AZUK
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5
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Li X, Wang Z, Lei Z, Ding W, Shi X, Yan J, Ku J. Magnetic characterization techniques and micromagnetic simulations of magnetic nanostructures: from zero to three dimensions. NANOSCALE 2023. [PMID: 37981862 DOI: 10.1039/d3nr04493a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
The investigation of the magnetic characteristics of magnetic nanostructures (MNs) in various dimensions is a crucial direction of research in nanomagnetism, with MNs belonging to various dimensions exhibiting magnetic properties related to their geometry. A better understanding of these magnetic properties is required for MN manipulation. The primary tools for researching MNs are magnetic characterisation techniques with great spatial resolution and spin sensitivity. Micromagnetic simulation is another technique that minimises experimental costs, while providing information on the magnetic structure and magnetic behaviour, and has enormous potential for predicting, validating, and extending the magnetic characterisation results. This review first looks at the progress of research into quantitatively characterising the magnetic properties of low-dimensional (including 0D, 1D, and 2D) and 3D MNs in two directions: magnetic characterisation techniques and micromagnetic simulations, with a particular emphasis on the potential for future applications of these techniques. Single magnetic characterization techniques, single micromagnetic simulations, or a mix of both are utilised in these research studies to investigate MNs in a variety of dimensions. How the magnetic characterisation techniques and micromagnetic simulations can be better applied to MNs in various dimensions is then outlined. This discussion has significant application potential for low-dimensional and 3D MNs.
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Affiliation(s)
- Xin Li
- Zijin School of Geology and Mining, Fuzhou University, Fuzhou 350116, China.
- Fujian Key Laboratory of Green Extraction and High-value Utilization of Energy Metals, Fuzhou 350116, China
| | - Zhaolian Wang
- Shandong Huate Magnet Technology Co., Ltd, Weifang 261000, China
| | - Zhongyun Lei
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
| | - Wei Ding
- Zijin School of Geology and Mining, Fuzhou University, Fuzhou 350116, China.
| | - Xiao Shi
- Zijin School of Geology and Mining, Fuzhou University, Fuzhou 350116, China.
| | - Jujian Yan
- Zijin School of Geology and Mining, Fuzhou University, Fuzhou 350116, China.
| | - Jiangang Ku
- Zijin School of Geology and Mining, Fuzhou University, Fuzhou 350116, China.
- Fujian Key Laboratory of Green Extraction and High-value Utilization of Energy Metals, Fuzhou 350116, China
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6
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Zhang J, Ha E, Li D, He S, Wang L, Kuang S, Hu J. Dual enzyme-like Co-FeSe 2 nanoflowers with GSH degradation capability for NIR II-enhanced catalytic tumor therapy. J Mater Chem B 2023; 11:4274-4286. [PMID: 37140154 DOI: 10.1039/d3tb00220a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Nanozymes mediated catalytic therapy can produce toxic reactive oxygen species (ROS) and destroy the metabolic balance of tumor cells, providing a new direction for cancer treatment. However, the catalytic efficiency of a single nanozyme is limited by the complexity of the tumor microenvironment (hypoxia, GSH overexpression, etc.). In order to overcome these problems, we designed flower-like Co-doped FeSe2 (Co-FeSe2) nanozymes by a simple wet chemistry method. Co-FeSe2 nanozymes not only exhibit high POD and OXD-mimicking activities for facile kinetics, but also effectively consume over-expressed glutathione (GSH), inhibiting the consumption of generated ROS and destroying the metabolic balance of the tumor microenvironment. These catalytic reactions trigger cell death through apoptosis and ferroptosis dual pathways. More importantly, under the NIR II laser irradiation, the catalytic activities of Co-FeSe2 nanozymes are boosted, confirming the photothermal and catalytic synergistic tumor therapy. This study takes advantage of self-cascading engineering that offers new ideas for designing efficient redox nanozymes and promoting their clinical translation.
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Affiliation(s)
- Jingge Zhang
- College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, Guangdong 518118, P. R. China.
| | - Enna Ha
- College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, Guangdong 518118, P. R. China.
| | - Danyang Li
- College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, Guangdong 518118, P. R. China.
| | - Shuqing He
- College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, Guangdong 518118, P. R. China.
| | - Luyang Wang
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen, Guangdong 518118, P. R. China
| | - Shaolong Kuang
- College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, Guangdong 518118, P. R. China.
| | - Junqing Hu
- College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, Guangdong 518118, P. R. China.
- Shenzhen Bay Laboratory, Shenzhen, Guangdong 518055, China
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7
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Basu S, Amdursky N. The Role of Surface Groups in Dictating the Chiral-Solvent-Induced Assembly of Carbon Dots into Structures Exhibiting Circularly Polarized Luminescence. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205880. [PMID: 36504318 DOI: 10.1002/smll.202205880] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Here, the use of achiral nanoparticles and solvent-induced chirality transfer is combined for the making of large structures exhibiting chiroptical properties in the form of circularly polarized luminescence (CPL). The nanoparticles that the authors use are carbon dots (C-Dots) that are known for their bright luminescence and the ability to tune their surface moieties by using different precursors in their synthesis. Here, the result of adding the chiral solvent limonene into an aqueous solution of various C-Dots is explored, differentiated by their surface group. It is shown that only nitrogen-containing C-Dots with amine functional groups see the emergence of a CPL signal and the formation of a large fibrillar assembled structure. The various forces happening in the interface between the C-Dots and the limonene phase and the role of the amine groups in both the chirality transfer interactions and the interactions between C-Dots in the assembly process are discussed, whereas these two processes intertwine with each other. The ability to form fluorescent chiral structures exhibiting CPL from achiral nanoparticles and the understanding of the various interactions in this process are both important to the rationale design of any supramolecular chiral assemblies.
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Affiliation(s)
- Srestha Basu
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Nadav Amdursky
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
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8
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Wang J, Li P, Wang N, Wang J, Xing D. Antibacterial features of material surface: strong enough to serve as antibiotics? J Mater Chem B 2023; 11:280-302. [PMID: 36533438 DOI: 10.1039/d2tb02139k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bacteria are small but need big efforts to control. The use of antibiotics not only produces superbugs that are increasingly difficult to inactivate, but also raises environmental concerns with the growing consumption. It is now believed that the antibacterial task can count on some physiochemical features of material surfaces, which can be anti-adhesive or bactericidal without releasing toxicants. It is necessary to evaluate to what extent can we rely on the surface design since the actual application scenarios will need the antibacterial performance to be sharp, robust, environmentally friendly, and long-lasting. Herein, we review the recent laboratory advances that have been classified based on the specific surface features, including hydrophobicity, charge potential, micromorphology, stiffness and viscosity, and photoactivity, and the antibacterial mechanisms of each feature are included to provide a basic rationale for future design. The significance of anti-biofilms is also introduced, given the big role of biofilms in bacteria-caused damage. A perspective on the potential wide application of antibacterial surface features as a substitute or supplement to antibiotics is then discussed. Surface design is no doubt a solution worthy to explore, and future success will be a result of further progress in multiple directions, including mechanism study and material preparation.
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Affiliation(s)
- Jie Wang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China. .,CAS Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, China Academy of Sciences, Qingdao 266071, China.
| | - Ping Li
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao 266071, China
| | - Ning Wang
- CAS Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, China Academy of Sciences, Qingdao 266071, China.
| | - Jing Wang
- CAS Key Laboratory of Marine Environmental Corrosion and Bio-Fouling, Institute of Oceanology, China Academy of Sciences, Qingdao 266071, China.
| | - Dongming Xing
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China.
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9
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Kim S, Palani S, Civitci F, Nan X, Ibsen S. A Versatile Synthetic Pathway for Producing Mesostructured Plasmonic Nanostructures. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203940. [PMID: 36269871 DOI: 10.1002/smll.202203940] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/24/2022] [Indexed: 06/16/2023]
Abstract
Highly branched gold (Au) nanostructures with sharp tips are considered excellent substrates for surface-enhanced Raman scattering (SERS)-based sensing technologies. Here, a simple synthetic route for producing Au or Au-Ag bimetallic mesostructures with multiple sharpened tips in the presence of carbon quantum dots (CQDs) is presented. The morphologies of these mesostructured plasmonic nanoparticles (MSPNs) can be controlled by adjusting the concentration of CQDs, reaction temperatures, and seed particles. The optimal molar ratio for [HAuCl4 ]/[CQDs] is found to be ≈25. At this molar ratio, the diameters of MSPNs can be tuned from 80 to 200 nm by changing the reaction temperature from 25 to 80 °C. In addition, it is found that hierarchical MSPNs consisting of multiple Au nanocrystals can be formed over the entire seed particle surface. Finally, the SERS activity of these MSPNs is examined through the detection of rhodamine 6G and methylene blue. Of the different mesostructures, the bimetallic MSPNs have the highest sensitivity with the ability to detect 10-7 m of rhodamine 6G and 10-6 m of methylene blue. The properties of these MSPN particles, made using a novel synthetic process, make them excellent candidates for SERS-based chemical sensing applications.
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Affiliation(s)
- Sejung Kim
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, 97239, USA
- School of Chemical Engineering, School of Semiconductor and Chemical Engineering, Clean Energy Research Center, Jeonbuk National University, 567 Baekjedae-ro, Jeonju-si, Jeollabuk-do, 54896, South Korea
| | - Stephen Palani
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, 97239, USA
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Fehmi Civitci
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, 97239, USA
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Xiaolin Nan
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, 97239, USA
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Stuart Ibsen
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, 97239, USA
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, OR, 97239, USA
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10
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Qiao L, Du K. Magnetic field-induced self-assembly of urchin-like polymeric particles: mechanism, dispersity, and application in wastewater treatment. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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11
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Zhang H, Hao C, Xu L, Xu C, Kuang H. Chiral-Solvent-Mediated Manganese-Based Hierarchical Supraparticles with Chiroptical Activity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2202741. [PMID: 36108137 DOI: 10.1002/smll.202202741] [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] [Received: 05/03/2022] [Revised: 08/08/2022] [Indexed: 06/15/2023]
Abstract
In this study, manganese-based multiply hierarchical chiral supraparticles (SPs), with an anisotropy factor (g-factor) of 0.102 and circular dichroism (CD) intensity of 260 mdeg at 530 nm, are successfully synthesized with polar-solvent-mediated strategies. Notably, the g-factor of the SPs is further enhanced to 0.121 by the addition of an external chiral solvent, generating a chiral biased environment, which increases their CD intensity to 320 mdeg at 500 nm. The mechanism underlying the different chirality is proposed to be a difference in the angle of tilt of ±33° between the two enantiomers of the chiral SPs, which involves a difference of ±7° between the orientation of individual nanoplatelets. Chiral solvents induce the angle between adjacent nanoplatelets to get smaller than the original structure that leads to their higher anisotropic value. These findings potentially provide a practical method for the construction of complex chiral superstructures and the regulation of chiroptical activity.
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Affiliation(s)
- Hongyu Zhang
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, P. R. China
| | - Changlong Hao
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, P. R. China
| | - Liguang Xu
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, P. R. China
| | - Chuanlai Xu
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, P. R. China
| | - Hua Kuang
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, P. R. China
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12
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Tang L, Vo T, Fan X, Vecchio D, Ma T, Lu J, Hou H, Glotzer SC, Kotov NA. Self-Assembly Mechanism of Complex Corrugated Particles. J Am Chem Soc 2021; 143:19655-19667. [PMID: 34784206 DOI: 10.1021/jacs.1c05488] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A variety of inorganic nanoscale materials produce microscale particles with highly corrugated geometries, but the mechanism of their formation remains unknown. Here we found that uniformly sized CdS-based hedgehog particles (HPs) self-assemble from polydisperse nanoparticles (NPs) with diameters of 1.0-4.0 nm. The typical diameters of HPs and spikes are 1770 ± 180 and 28 ± 3 nm, respectively. Depending on the temperature, solvent, and reaction times, the NPs self-assemble into nanorods, nanorod aggregates, low-corrugation particles, and other HP-related particles with complexity indexes ranging from 0 to 23.7. We show that "hedgehog", other geometries, and topologies of highly corrugated particles originate from the thermodynamic preference of polydisperse NPs to attach to the growing nanoscale cluster when electrostatic repulsion competes with van der Waals attraction. Theoretical models and simulations of the self-assembly accounting for the competition of attractive and repulsive interactions in electrolytes accurately describe particle morphology, growth stages, and the spectrum of observed products. When kinetic parameters are included in the models, the formation of corrugated particles with surfaces decorated by nanosheets, known as flower-like particles, were theoretically predicted and experimentally observed. The generality of the proposed mechanism was demonstrated for the formation of mixed HPs via a combination of CdS and Co3O4 NPs. With unusually high dispersion stability of HPs in unfavorable solvents including liquid CO2, mechanistic insights into HP formation are essential for their structural adaptation for applications from energy storage, catalysis, water treatment, and others.
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Affiliation(s)
- Lanqin Tang
- Department of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, P. R. China.,Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States.,Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Thi Vo
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States.,Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Xiaoxing Fan
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States.,School of Physics, Liaoning University, Shenyang, Liaoning 110036, P. R. China
| | - Drew Vecchio
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Tao Ma
- Michigan Center for Materials Characterization, University of Michigan, Ann Arbor, Michigan 48109-2102, United States.,Department of Materials Science, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Jun Lu
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States.,Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Harrison Hou
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States.,Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Sharon C Glotzer
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States.,Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Nicholas A Kotov
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States.,Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
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13
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Zhao L, Song X, Ouyang X, Zhou J, Li J, Deng D. Bioinspired Virus-like Fe 3O 4/Au@C Nanovector for Programmable Drug Delivery via Hierarchical Targeting. ACS APPLIED MATERIALS & INTERFACES 2021; 13:49631-49641. [PMID: 34636534 DOI: 10.1021/acsami.1c11261] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Bioinspired strategies have recently emerged as novel approaches for designing a functionalized nanovector with enhanced tumor targeting and therapeutic efficacy. Herein, a virus-like Fe3O4/Au@C nanovector is described for programmable drug delivery via hierarchical targeting. Specifically, the virus-like Fe3O4/Au@C nanovector is synthesized via a simple hydrothermal process, and then the spiky surface of which is camouflaged via doxorubicin (DOX)-conjugated polyethylene glycol (PEG), constructing an innovative virus-like core/spherical shell biomimetic nanomedicine (Fe3O4/Au@C-DOX-PEG), which is conducive to improve bioavailability and reduce adverse effects. After systemic administration, the as-prepared nanomedicine is capable of facilitating effective tumor accumulation and deep tumor penetration with the assistance of an external magnetic field and endogenous pH stimuli. Simultaneously, in response to the acidic tumor microenvironment, Fe3O4/Au@C-DOX nanocomposites are released and exhibit excellent performance in cellular internalization through a virus-mimetic rough surface. Furthermore, the in vivo experiments identify that the unique nanomedicine is bestowed with an effective targeting tumor, prominent antitumor efficacy, and reduced systemic toxicity. Such a bioinspired hierarchical targeting nanoplatform holds promising potential for enhanced chemotherapeutic intracellular delivery and tumor theranostics.
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Affiliation(s)
- Liying Zhao
- Department of Pharmaceutical Engineering, China Pharmaceutical University, Nanjing 211198, China
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Xiaoxiao Song
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Xueliang Ouyang
- Department of Pharmaceutical Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Jiahong Zhou
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Jinping Li
- Department of Pharmaceutical Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Dawei Deng
- Department of Pharmaceutical Engineering, China Pharmaceutical University, Nanjing 211198, China
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
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14
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Wang J, Zhang Y, Pi J, Xing D, Wang C. Localized delivery of immunotherapeutics: A rising trend in the field. J Control Release 2021; 340:149-167. [PMID: 34699871 DOI: 10.1016/j.jconrel.2021.10.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 10/11/2021] [Indexed: 02/08/2023]
Abstract
Immunotherapy is becoming a new standard of care for multiple cancers, while several limitations are impending its further clinical success. Immunotherapeutic agents often have inappropriate pharmacokinetics on their own and/or exhibit limited specificity to tumor cells, leading to severe immuno-related adverse effects and limited efficacy. Suitable formulating strategies that confer prolonged contact with or efficient proliferation in tumors while reducing exposure to normal tissues are highly worthy to explore. With the assistance of biomaterial carriers, targeted therapy can be achieved artificially by implanting or injecting drug depots into desired sites, about which the wisdoms in literature have been rich. The relevant results have suggested a "local but systemic" effect, that is, local replenishment of immune modulators achieves a high treatment efficacy that also governs distant metastases, thereby building another rationale for localized delivery. Particularly, implantable scaffolds have been further engineered to recruit disseminated tumor cells with an efficiency high enough to reduce tumor burdens at typical metastatic organs, and simultaneously provide diagnostic signals. This review introduces recent advances in this emerging area along with a perspective on the opportunities and challenges in the way to clinical application.
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Affiliation(s)
- Jie Wang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China; Qingdao Cancer Institute, Qingdao University, Qingdao 266071, China.
| | - Yukun Zhang
- Qingdao Cancer Institute, Qingdao University, Qingdao 266071, China
| | - Jiuchan Pi
- Qingdao Cancer Institute, Qingdao University, Qingdao 266071, China
| | - Dongming Xing
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China; Qingdao Cancer Institute, Qingdao University, Qingdao 266071, China; School of Life Sciences, Tsinghua University, Beijing 100084, China.
| | - Chao Wang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China; Qingdao Cancer Institute, Qingdao University, Qingdao 266071, China.
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15
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Fang L, Wang J, Ouyang X, Liang B, Zhao L, Huang D, Deng D. FeSe 2 nanosheets as a bifunctional platform for synergistic tumor therapy reinforced by NIR-II light. Biomater Sci 2021; 9:5542-5550. [PMID: 34254095 DOI: 10.1039/d1bm00679g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Multi-functionality has been a constant pursuit in the development of next-generation drug carriers, as it will bring the potential for combination therapy by integrating diverse therapeutic modes. In this work, FeSe2 nanosheets (NSs) have been prepared as a bifunctional platform to investigate their use in synergistic cancer therapy. Bifunctional FeSe2 NSs exhibit exceptional Fenton-like activity that generates cytotoxic hydroxyl radical (˙OH) and strong broad photothermal performance including the second-infrared (NIR-II) spectral range, wherein the ˙OH production can be enhanced by NIR-II light irradiation. Furthermore, doxorubicin (DOX) was conjugated onto NSs via a pH-responsive hydrazone bond to achieve preferential drug release in an acidic microenvironment. Upon intratumoral administration, these bifunctional drug-carrying FeSe2 NSs showed an NIR-II irradiation-reinforced strong tumor suppression effect, and no obvious toxicity to normal tissues was observed. This study provides a new paradigm for the design of advanced drug carriers relying on their inherent physicochemical properties.
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Affiliation(s)
- Lan Fang
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China.
| | - Jie Wang
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China.
| | - Xueliang Ouyang
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China.
| | - Binbin Liang
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China.
| | - Liying Zhao
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China.
| | - Dechun Huang
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China.
| | - Dawei Deng
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China. and Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, P. R. China.
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16
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Kim YR, Lee TW, Park S, Jang J, Ahn CW, Choi JJ, Hahn BD, Choi JH, Yoon WH, Bae SH, Min Y. Supraparticle Engineering for Highly Dense Microspheres: Yttria-Stabilized Zirconia with Adjustable Micromechanical Properties. ACS NANO 2021; 15:10264-10274. [PMID: 34037372 DOI: 10.1021/acsnano.1c02408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Various supraparticles have been extensively studied owing to their excellent catalytic properties that are attributed to their inherent porous structure; however, their mechanical properties have not garnered attention owing to their less dense structure. We demonstrate a rational approach for fabricating assembled supraparticles and, subsequently, highly dense microspheres. In addition, 3 mol % yttria-stabilized zirconia (3YSZ) and alumina particles were selected as building blocks and assembled into higher-order architectures using a droplet-based template method (spray drying) for validation with proof-of-concept. Moreover, structural features such as density, size, sphericity, and morphology of supraparticles were controlled by adjusting the competing kinetics occurring between the assembly of building blocks and evaporation of the solvent in the droplets. The preparatory aqueous suspension and process parameters were optimized as well. A detailed understanding of the formation mechanism facilitated the yield of tailor-made supraparticles and, thereafter, highly dense microspheres (approximate relative density = 99%) with excellent sphericity (>98%) via heat treatment. The microspheres displayed highest hardness (26.77 GPa) and superior elastic modulus (210.19 GPa) compared with the mechanical properties of the 3YSZ samples reported to date. Ultimately, the proposed supraparticle engineering provided insight for controlling the structural features and resultant micromechanical properties, which widely extends the applicability of supraparticle-based functional materials for practical purposes that require materials with high density and excellent mechanical properties.
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Affiliation(s)
- Young-Rok Kim
- Department of Functional Ceramics, Ceramic Materials Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea, 51508
- Department of Mechatronics Engineering, Kyungnam University, Gyeongnam, Korea, 51767
| | - Tae Won Lee
- Department of Functional Ceramics, Ceramic Materials Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea, 51508
| | - Seonhwa Park
- Department of Functional Ceramics, Ceramic Materials Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea, 51508
| | - Jongmoon Jang
- Department of Functional Ceramics, Ceramic Materials Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea, 51508
| | - Cheol-Woo Ahn
- Department of Functional Ceramics, Ceramic Materials Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea, 51508
| | - Jong-Jin Choi
- Department of Functional Ceramics, Ceramic Materials Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea, 51508
| | - Byung-Dong Hahn
- Department of Functional Ceramics, Ceramic Materials Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea, 51508
| | - Joon-Hwan Choi
- Department of Functional Ceramics, Ceramic Materials Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea, 51508
| | - Woon-Ha Yoon
- Department of Functional Ceramics, Ceramic Materials Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea, 51508
| | - Sung-Hwan Bae
- Department of Mechatronics Engineering, Kyungnam University, Gyeongnam, Korea, 51767
| | - Yuho Min
- Department of Functional Ceramics, Ceramic Materials Division, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam, Korea, 51508
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17
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Montjoy DG, Hou H, Bahng JH, Eskafi A, Jiang R, Kotov NA. Photocatalytic Hedgehog Particles for High Ionic Strength Environments. ACS NANO 2021; 15:4226-4234. [PMID: 33606497 DOI: 10.1021/acsnano.0c05992] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
High ionic strength environments can profoundly influence catalytic reactions involving charged species. However, control of selectivity and yield of heterogeneous catalytic reactions involving nano- and microscale colloids remains hypothetical because high ionic strength leads to aggregation of particle dispersions. Here we show that microscale hedgehog particles (HPs) with semiconductor nanoscale spikes display enhanced stability in solutions of monovalent/divalent salts in both aqueous and hydrophobic media. HPs enable tuning of photocatalytic reactions toward high-value products by adding concentrated inert salts to amplify local electrical fields in agreement with Derjaguin, Landau, Verwey, and Overbeek theory. After optimization of HP geometry for a model photocatalytic reaction, we show that high salt conditions increase the yield of HP-facilitated photooxidation of 2-phenoxy-1-phenylethanol to benzaldehyde and 2-phenoxyacetophenone by 6 and 35 times, respectively. Depending on salinity, electrical fields at the HP-media interface increase from 1.7 × 104 V/m to 8.5 × 107 V/m, with high fields favoring products generated via intermediate cation radicals rather than neutral species. Electron transfer rates were modulated by varying the ionic strength, which affords a convenient and hardly used reaction pathway for engineering a multitude of redox reactions including those involved in the environmental remediation of briny and salty water.
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Affiliation(s)
| | | | - Joong Hwan Bahng
- Department of Electrical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | | | - Ruiyu Jiang
- Jiangsu Collaborative Innovation Center for Ecological Building Material and Environmental Protection Equipment, Yancheng Institute of Technology, Yancheng 224051, China
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18
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Li S, Guo X, Sun M, Qu A, Hao C, Wu X, Guo J, Xu C, Kuang H, Xu L. Self-limiting self-assembly of supraparticles for potential biological applications. NANOSCALE 2021; 13:2302-2311. [PMID: 33498081 DOI: 10.1039/d0nr08001b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Nanotechnology has largely spurred the development of biological systems by taking advantage of the unique chemical, physical, optical, magnetic, and electrical properties of nanostructures. Self-limiting self-assembly of supraparticles produce new nanostructures and display great potential to create biomimicking nanostructures with desired functionalities. In this minireview, we summarize the recent developments and outstanding achievements of colloidal supraparticles, such as the driving forces for self-limiting self-assembly of supraparticles and properties of constructed supraparticles. Their application values in biological systems have also been illustrated.
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Affiliation(s)
- Si Li
- International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China and State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, People's Republic of China.
| | - Xiao Guo
- International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China and State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, People's Republic of China.
| | - Maozhong Sun
- International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China and State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, People's Republic of China.
| | - Aihua Qu
- International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China and State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, People's Republic of China.
| | - Changlong Hao
- International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China and State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, People's Republic of China.
| | - Xiaoling Wu
- International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China and State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, People's Republic of China.
| | - Jun Guo
- Analysis and Testing Center, Soochow University, Suzhou, 215123, People's Republic of China
| | - Chuanlai Xu
- International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China and State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, People's Republic of China.
| | - Hua Kuang
- International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China and State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, People's Republic of China.
| | - Liguang Xu
- International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China and State Key Laboratory of Food Science and Technology, Jiangnan University, Jiangsu, People's Republic of China.
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19
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Wang J, Zhang Y, Chen W, Li Q, Wu Y, Jiang H, Xing D. A facile ligand-free route to calcium carbonate superstructures. NEW J CHEM 2021. [DOI: 10.1039/d1nj03362j] [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
By capturing the inherent transition behavior, CaCO3 superstructures with well-defined morphologies and amorphous-to-vaterite polymorph nature were obtained in a large scale and ligand-free manner.
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Affiliation(s)
- Jie Wang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China
- Cancer Institute, Qingdao University, Qingdao 266071, China
| | - Yukun Zhang
- Cancer Institute, Qingdao University, Qingdao 266071, China
| | - Wujun Chen
- Cancer Institute, Qingdao University, Qingdao 266071, China
| | - Qian Li
- Cancer Institute, Qingdao University, Qingdao 266071, China
| | - Yudong Wu
- Cancer Institute, Qingdao University, Qingdao 266071, China
| | - Hongfei Jiang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China
- Cancer Institute, Qingdao University, Qingdao 266071, China
| | - Dongming Xing
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266071, China
- Cancer Institute, Qingdao University, Qingdao 266071, China
- School of Life Sciences, Tsinghua University, Beijing 100084, China
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20
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Svensson FG, Seisenbaeva GA, Kotov NA, Kessler VG. Self-Assembly of Asymmetrically Functionalized Titania Nanoparticles into Nanoshells. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4856. [PMID: 33138284 PMCID: PMC7662802 DOI: 10.3390/ma13214856] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/26/2020] [Accepted: 10/27/2020] [Indexed: 01/08/2023]
Abstract
Titania (anatase) nanoparticles were anisotropically functionalized in water-toluene Pickering emulsions to self-assemble into nanoshells with diameters from 500 nm to 3 μm as candidates for encapsulation of drugs and other compounds. The water-phase contained a hydrophilic ligand, glucose-6-phosphate, while the toluene-phase contained a hydrophobic ligand, n-dodecylphosphonic acid. The addition of a dilute sodium alginate suspension that provided electrostatic charge was essential for the self-limited assembly of the nanoshells. The self-assembled spheres were characterized by scanning electron microscopy, elemental mapping, and atomic force microscopy. Drug release studies using tetracycline suggest a rapid release dominated by surface desorption.
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Affiliation(s)
- Fredric G. Svensson
- Department of Molecular Sciences, Swedish University of Agricultural Sciences (SLU), Box 7015, 750 07 Uppsala, Sweden; (F.G.S.); (G.A.S.); (N.A.K.)
| | - Gulaim A. Seisenbaeva
- Department of Molecular Sciences, Swedish University of Agricultural Sciences (SLU), Box 7015, 750 07 Uppsala, Sweden; (F.G.S.); (G.A.S.); (N.A.K.)
| | - Nicholas A. Kotov
- Department of Molecular Sciences, Swedish University of Agricultural Sciences (SLU), Box 7015, 750 07 Uppsala, Sweden; (F.G.S.); (G.A.S.); (N.A.K.)
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute University of Michigan, Ann Arbor, MI 48109, USA
| | - Vadim G. Kessler
- Department of Molecular Sciences, Swedish University of Agricultural Sciences (SLU), Box 7015, 750 07 Uppsala, Sweden; (F.G.S.); (G.A.S.); (N.A.K.)
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21
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Wang J, Zhou J, Xu D, Li J, Deng D. Tailoring Viruslike Mesoporous FeSe 2 Hedgehogs for Controlled Drug Delivery and Synergistic Tumor Suppression. ACS APPLIED MATERIALS & INTERFACES 2020; 12:47197-47207. [PMID: 32993290 DOI: 10.1021/acsami.0c10888] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To enhance affinity to their hosts, many organisms have evolved to be spiky. This strategy has been inspiring in many fields, but in drug delivery, the feasibility has not yet been extensively explored due to the lack of suitable nanocarriers. Herein, viruslike mesoporous FeSe2 hedgehogs with exceptional photothermal and catalytic performances have been tailored and explored for synergistic tumor therapy. The viruslike topology makes these hedgehogs highly prone to be internalized by cells. By uploading doxorubicin (Dox) into the hollow spikes and encapsulating the hedgehogs with photothermal-meltable gelatin, controlled surface morphology transition from quasi-spherical to spiky and accompanied Dox release have been achieved, with the assistance of the strong photothermal effect of FeSe2 hedgehogs. These integrated features allow specific and controlled drug delivery, leading to synergistic tumor suppression and immunogenic tumor cell death. These results provide new insights into the tailoring of drug carriers relying on their intrinsic physical features.
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Affiliation(s)
- Jie Wang
- Cancer Institution, The Affiliated Hospital of Qingdao University, Qingdao 266061, China
| | | | | | | | - Dawei Deng
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing 210009, China
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22
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Jiang W, Qu ZB, Kumar P, Vecchio D, Wang Y, Ma Y, Bahng JH, Bernardino K, Gomes WR, Colombari FM, Lozada-Blanco A, Veksler M, Marino E, Simon A, Murray C, Muniz SR, de Moura AF, Kotov NA. Emergence of complexity in hierarchically organized chiral particles. Science 2020; 368:642-648. [DOI: 10.1126/science.aaz7949] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 03/30/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Wenfeng Jiang
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhi-bei Qu
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Prashant Kumar
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Drew Vecchio
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yuefei Wang
- Department of Materials Science, University of Michigan, Ann Arbor, MI 48109, USA
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yu Ma
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
- School of Stomatology, Lanzhou University, Lanzhou 730000, China
| | | | - Kalil Bernardino
- Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, SP, Brazil
| | - Weverson R. Gomes
- Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Felippe M. Colombari
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970 Campinas, SP, Brazil
| | - Asdrubal Lozada-Blanco
- Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Michael Veksler
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Emanuele Marino
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Alex Simon
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Christopher Murray
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Sérgio Ricardo Muniz
- São Carlos Institute of Physics, University of São Paulo, 13560-970 São Carlos, SP, Brazil
| | - André F. de Moura
- Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Nicholas A. Kotov
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Materials Science, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Macromolecular Science and Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Michigan Institute of Translational Nanotechnology (MITRAN), Ypsilanti, MI 48198, USA
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Oyetunde T, Omorogie MO, O'Brien P. Ferromagnetic FeSe 2 from a mixed sulphur-selenium complex of iron [Fe{(SePPh 2NPPh 2S) 2N} 3] through pyrolysis. Heliyon 2020; 6:e03763. [PMID: 32346632 PMCID: PMC7182788 DOI: 10.1016/j.heliyon.2020.e03763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 02/21/2020] [Accepted: 04/06/2020] [Indexed: 11/19/2022] Open
Abstract
Iron (III) thioselenoimidodiphosphinate complex, Fe{(SePPh2NPPh2S)2N}3], was synthesized from the ligand [Ph2P(S)HNP(Se)Ph2], and the complex employed as the combined source of the targeted elements (Fe and Se) to generate orthorhombic FeSe2. This was achieved by thermolysis using a quartz glass tube, under reduced pressure at 500 °C during 1 h 30 min. The crystalline product was revealed by X-ray diffraction (XRD), while the morphology consisted of polygonal crystallites according to the scanning electron microscopy (SEM) studies. Superconducting quantum interference device (SQUID) measurements on the material confirmed its ferromagnetism as observed from the magnetization curve, indicated by the field-cooled and zero field-cooled conditions under a magnetic field of 100 Oe. This ferromagnetic material, FeSe2 finds useful application in producing electrical semiconductors.
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Affiliation(s)
- Temidayo Oyetunde
- Centre for Chemical and Biochemical Research (CCBR), Department of Chemical Sciences, Redeemer's University, Ede, P.M.B. 230, Osun State, 232102, Nigeria
- School of Chemistry and School of Materials, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
- Corresponding author.
| | - Martins O. Omorogie
- Centre for Chemical and Biochemical Research (CCBR), Department of Chemical Sciences, Redeemer's University, Ede, P.M.B. 230, Osun State, 232102, Nigeria
- Water Science and Technology Research Unit, African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, Ede, P.M.B. 230, Osun State, 232102, Nigeria
- Corresponding author.
| | - Paul O'Brien
- School of Chemistry and School of Materials, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
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Wang J, Fang L, Li P, Ma L, Na W, Cheng C, Gu Y, Deng D. Inorganic Nanozyme with Combined Self-Oxygenation/Degradable Capabilities for Sensitized Cancer Immunochemotherapy. NANO-MICRO LETTERS 2019; 11:74. [PMID: 34138044 PMCID: PMC7770972 DOI: 10.1007/s40820-019-0305-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 08/18/2019] [Indexed: 05/22/2023]
Abstract
Recently emerged cancer immunochemotherapy has provided enormous new possibilities to replace traditional chemotherapy in fighting tumor. However, the treatment efficacy is hampered by tumor hypoxia-induced immunosuppression in tumor microenvironment (TME). Herein, we fabricated a self-oxygenation/degradable inorganic nanozyme with a core-shell structure to relieve tumor hypoxia in cancer immunochemotherapy. By integrating the biocompatible CaO2 as the oxygen-storing component, this strategy is more effective than the earlier designed nanocarriers for delivering oxygen or H2O2, and thus provides remarkable oxygenation and long-term capability in relieving hypoxia throughout the tumor tissue. Consequently, in vivo tests validate that the delivery system can successfully relieve hypoxia and reverse the immunosuppressive TME to favor antitumor immune responses, leading to enhanced chemoimmunotherapy with cytotoxic T lymphocyte-associated antigen 4 blockade. Overall, a facile, robust and effective strategy is proposed to improve tumor oxygenation by using self-decomposable and biocompatible inorganic nanozyme reactor, which will not only provide an innovative pathway to relieve intratumoral hypoxia, but also present potential applications in other oxygen-favored cancer therapies or oxygen deficiency-originated diseases.
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Affiliation(s)
- Jie Wang
- Department of Pharmaceutical Engineering and Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Lan Fang
- Department of Pharmaceutical Engineering and Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Ping Li
- Department of Pharmaceutical Engineering and Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Lang Ma
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, People's Republic of China
| | - Weidan Na
- Department of Pharmaceutical Engineering and Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Chong Cheng
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany.
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, People's Republic of China.
| | - Yueqing Gu
- Department of Pharmaceutical Engineering and Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Dawei Deng
- Department of Pharmaceutical Engineering and Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 211198, People's Republic of China.
- State Key Laboratory of Natural Medicines, National R&D Center for Chinese Herbal Medicine Processing, China Pharmaceutical University, Nanjing, 211198, People's Republic of China.
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Ariga K, Nishikawa M, Mori T, Takeya J, Shrestha LK, Hill JP. Self-assembly as a key player for materials nanoarchitectonics. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2019; 20:51-95. [PMID: 30787960 PMCID: PMC6374972 DOI: 10.1080/14686996.2018.1553108] [Citation(s) in RCA: 215] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 11/23/2018] [Accepted: 11/25/2018] [Indexed: 05/07/2023]
Abstract
The development of science and technology of advanced materials using nanoscale units can be conducted by a novel concept involving combination of nanotechnology methodology with various research disciplines, especially supramolecular chemistry. The novel concept is called 'nanoarchitectonics' where self-assembly processes are crucial in many cases involving a wide range of component materials. This review of self-assembly processes re-examines recent progress in materials nanoarchitectonics. It is composed of three main sections: (1) the first short section describes typical examples of self-assembly research to outline the matters discussed in this review; (2) the second section summarizes self-assemblies at interfaces from general viewpoints; and (3) the final section is focused on self-assembly processes at interfaces. The examples presented demonstrate the strikingly wide range of possibilities and future potential of self-assembly processes and their important contribution to materials nanoarchitectonics. The research examples described in this review cover variously structured objects including molecular machines, molecular receptors, molecular pliers, molecular rotors, nanoparticles, nanosheets, nanotubes, nanowires, nanoflakes, nanocubes, nanodisks, nanoring, block copolymers, hyperbranched polymers, supramolecular polymers, supramolecular gels, liquid crystals, Langmuir monolayers, Langmuir-Blodgett films, self-assembled monolayers, thin films, layer-by-layer structures, breath figure motif structures, two-dimensional molecular patterns, fullerene crystals, metal-organic frameworks, coordination polymers, coordination capsules, porous carbon spheres, mesoporous materials, polynuclear catalysts, DNA origamis, transmembrane channels, peptide conjugates, and vesicles, as well as functional materials for sensing, surface-enhanced Raman spectroscopy, photovoltaics, charge transport, excitation energy transfer, light-harvesting, photocatalysts, field effect transistors, logic gates, organic semiconductors, thin-film-based devices, drug delivery, cell culture, supramolecular differentiation, molecular recognition, molecular tuning, and hand-operating (hand-operated) nanotechnology.
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Affiliation(s)
- Katsuhiko Ariga
- WPI-MANA, National Institute for Materials Science (NIMS), Ibaraki, Japan
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan
| | | | - Taizo Mori
- WPI-MANA, National Institute for Materials Science (NIMS), Ibaraki, Japan
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan
| | - Jun Takeya
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan
| | - Lok Kumar Shrestha
- WPI-MANA, National Institute for Materials Science (NIMS), Ibaraki, Japan
| | - Jonathan P. Hill
- WPI-MANA, National Institute for Materials Science (NIMS), Ibaraki, Japan
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Deng T, Wang J, Li Y, Han Z, Peng Y, Zhang J, Gao Z, Gu Y, Deng D. Quantum Dots-Based Multifunctional Nano-Prodrug Fabricated by Ingenious Self-Assembly Strategies for Tumor Theranostic. ACS APPLIED MATERIALS & INTERFACES 2018; 10:27657-27668. [PMID: 30016068 DOI: 10.1021/acsami.8b08512] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The rapid developments of quantum dots (QDs)-based nanoagents for imaging tumor and tracking drug delivery have been proven to be reliable nanodiagnostic techniques. Although abundant types of QD nanoagents have been developed for fighting against cancer, it still is a challenge to control their quality and achieve prefect repetition due to the complicated synthetic steps. The precise intermolecular self-assembly (SA) may afford a facile and low-cost strategy for this challenge. Herein, a pH and H2O2 dual-sensitive Sb-cyclodextrin (CD)-doxorubicin (DOX) molecule was designed to construct a QD-based theranostic prodrug (named as Sb-CD-DOX-ZAISe/ZnS) via host-guest strategy (1st SA strategy), in which QDs water-transfer and drug-uploading were integrated well. That is, the nano-prodrug (NPD) inherited highly luminescent properties from "host" QDs for bioimaging, as well as environment sensitivities from "guest" Sb-CD-DOX for drug release. Experimental results indicate that the Sb-CD-DOX-ZAISe/ZnS exhibited effectively passive tumor-targeting and could provide clear imaging for malignant tumors in metaphase or advanced stages; meanwhile, after coating with folic acid (FA) through electric attraction (2nd SA strategy), the final Sb-CD-DOX-ZAISe/ZnS@FA NPD showed expected pH-controlled negative-to-positive charge reversal ability and a better curative effect compared with free DOX. Hence, fabricating nanocomposites by highly efficient self-assembly strategies is favorable toward inorganic nanoparticles-based prodrug delivery system for tumor-targeting theranostic.
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Affiliation(s)
| | | | | | | | | | | | - Zhen Gao
- College of Biotechnology and Pharmaceutical Engineering , Nanjing Tech University , Nanjing 211816 , China
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di Gregorio MC, Ranjan P, Houben L, Shimon LJW, Rechav K, Lahav M, van der Boom ME. Metal-Coordination-Induced Fusion Creates Hollow Crystalline Molecular Superstructures. J Am Chem Soc 2018; 140:9132-9139. [PMID: 29939733 DOI: 10.1021/jacs.8b03055] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
In this work, we report the formation of superstructures assembled from organic tubular crystals mediated by metal-coordination chemistry. This template-free process involves the crystallization of molecules into crystals having a rectangular and uniform morphology, which then go on to fuse together into multibranched superstructures. The initially hollow and organic crystals are obtained under solvothermal conditions in the presence of a copper salt, whereas the superstructures are subsequently formed by aging the reaction mixture at room temperature. The mild thermodynamic conditions and the favorable kinetics of this unique self-assembly process allowed us to ex-situ monitor the superstructure formation by electron microscopy, highlighting a pivotal and unusual role for copper ions in their formation and stabilization.
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Montjoy DG, Bahng JH, Eskafi A, Hou H, Kotov NA. Omnidispersible Hedgehog Particles with Multilayer Coatings for Multiplexed Biosensing. J Am Chem Soc 2018; 140:7835-7845. [DOI: 10.1021/jacs.8b02666] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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