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Gallo-Orive Á, Moreno-Guzmán M, Sanchez-Paniagua M, Montero-Calle A, Barderas R, Escarpa A. Gold Nanoparticle-Decorated Catalytic Micromotor-Based Aptassay for Rapid Electrochemical Label-Free Amyloid-β42 Oligomer Determination in Clinical Samples from Alzheimer's Patients. Anal Chem 2024; 96:5509-5518. [PMID: 38551492 PMCID: PMC11007680 DOI: 10.1021/acs.analchem.3c05665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/08/2024] [Accepted: 03/11/2024] [Indexed: 04/10/2024]
Abstract
Micromotor (MM) technology offers a valuable and smart on-the-move biosensing microscale approach in clinical settings where sample availability is scarce in the case of Alzheimer's disease (AD). Soluble amyloid-β protein oligomers (AβO) (mainly AβO42) that circulate in biological fluids have been recognized as a molecular biomarker and therapeutic target of AD due to their high toxicity, and they are correlated much more strongly with AD compared to the insoluble Aβ monomers. A graphene oxide (GO)-gold nanoparticles (AuNPs)/nickel (Ni)/platinum nanoparticles (PtNPs) micromotors (MMGO-AuNPs)-based electrochemical label-free aptassay is proposed for sensitive, accurate, and rapid determination of AβO42 in complex clinical samples such as brain tissue, cerebrospinal fluid (CSF), and plasma from AD patients. An approach that implies the in situ formation of AuNPs on the GO external layer of tubular MM in only one step during MM electrosynthesis was performed (MMGO-AuNPs). The AβO42 specific thiolated-aptamer (AptAβO42) was immobilized in the MMGO-AuNPs via Au-S interaction, allowing for the selective recognition of the AβO42 (MMGO-AuNPs-AptAβO42-AβO42). AuNPs were smartly used not only to covalently bind a specific thiolated-aptamer for the design of a label-free electrochemical aptassay but also to improve the final MM propulsion performance due to their catalytic activity (approximately 2.0× speed). This on-the-move bioplatform provided a fast (5 min), selective, precise (RSD < 8%), and accurate quantification of AβO42 (recoveries 94-102%) with excellent sensitivity (LOD = 0.10 pg mL-1) and wide linear range (0.5-500 pg mL-1) in ultralow volumes of the clinical sample of AD patients (5 μL), without any dilution. Remarkably, our MM-based bioplatform demonstrated the competitiveness for the determination of AβO42 in the target samples against the dot blot analysis, which requires more than 14 h to provide qualitative results only. It is also important to highlight its applicability to the potential analysis of liquid biopsies as plasma and CSF samples, improving the reliability of the diagnosis given the heterogeneity and temporal complexity of neurodegenerative diseases. The excellent results obtained demonstrate the analytical potency of our approach as a future tool for clinical/POCT (Point-of-care testing) routine scenarios.
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Affiliation(s)
- Álvaro Gallo-Orive
- Department
of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, 28802 Alcalá de Henares, Madrid, Spain
- Department
of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Moncloa-Aravaca, Madrid, Spain
| | - María Moreno-Guzmán
- Department
of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Moncloa-Aravaca, Madrid, Spain
| | - Marta Sanchez-Paniagua
- Department
of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Moncloa-Aravaca, Madrid, Spain
| | - Ana Montero-Calle
- Chronic
Disease Programme, UFIEC, Carlos III Health
Institute, 28220 Majadahonda, Madrid, Spain
| | - Rodrigo Barderas
- Chronic
Disease Programme, UFIEC, Carlos III Health
Institute, 28220 Majadahonda, Madrid, Spain
| | - Alberto Escarpa
- Department
of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, 28802 Alcalá de Henares, Madrid, Spain
- Chemical
Research Institute “Andrés M. Del Rio”, University of Alcalá, 28802 Alcalá de Henares, Madrid, Spain
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Naeem S, Naeem F, Mujtaba J, Shukla AK, Mitra S, Huang G, Gulina L, Rudakovskaya P, Cui J, Tolstoy V, Gorin D, Mei Y, Solovev AA, Dey KK. Oxygen Generation Using Catalytic Nano/Micromotors. MICROMACHINES 2021; 12:1251. [PMID: 34683302 PMCID: PMC8541545 DOI: 10.3390/mi12101251] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 09/30/2021] [Accepted: 10/05/2021] [Indexed: 02/06/2023]
Abstract
Gaseous oxygen plays a vital role in driving the metabolism of living organisms and has multiple agricultural, medical, and technological applications. Different methods have been discovered to produce oxygen, including plants, oxygen concentrators and catalytic reactions. However, many such approaches are relatively expensive, involve challenges, complexities in post-production processes or generate undesired reaction products. Catalytic oxygen generation using hydrogen peroxide is one of the simplest and cleanest methods to produce oxygen in the required quantities. Chemically powered micro/nanomotors, capable of self-propulsion in liquid media, offer convenient and economic platforms for on-the-fly generation of gaseous oxygen on demand. Micromotors have opened up opportunities for controlled oxygen generation and transport under complex conditions, critical medical diagnostics and therapy. Mobile oxygen micro-carriers help better understand the energy transduction efficiencies of micro/nanoscopic active matter by careful selection of catalytic materials, fuel compositions and concentrations, catalyst surface curvatures and catalytic particle size, which opens avenues for controllable oxygen release on the level of a single catalytic microreactor. This review discusses various micro/nanomotor systems capable of functioning as mobile oxygen generators while highlighting their features, efficiencies and application potentials in different fields.
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Affiliation(s)
- Sumayyah Naeem
- Department of Materials Science, Fudan University, Shanghai 200433, China; (S.N.); (F.N.); (J.M.); (G.H.); (J.C.); (Y.M.)
- State Key Laboratory for Modification of Chemical Fibers and Polymer Material Science and Engineering, Donghua University, Shanghai 201620, China
| | - Farah Naeem
- Department of Materials Science, Fudan University, Shanghai 200433, China; (S.N.); (F.N.); (J.M.); (G.H.); (J.C.); (Y.M.)
- State Key Laboratory for Modification of Chemical Fibers and Polymer Material Science and Engineering, Donghua University, Shanghai 201620, China
| | - Jawayria Mujtaba
- Department of Materials Science, Fudan University, Shanghai 200433, China; (S.N.); (F.N.); (J.M.); (G.H.); (J.C.); (Y.M.)
| | - Ashish Kumar Shukla
- Discipline of Physics, Indian Institute of Technology Gandhinagar, Palaj 382355, Gujarat, India; (A.K.S.); (S.M.)
| | - Shirsendu Mitra
- Discipline of Physics, Indian Institute of Technology Gandhinagar, Palaj 382355, Gujarat, India; (A.K.S.); (S.M.)
| | - Gaoshan Huang
- Department of Materials Science, Fudan University, Shanghai 200433, China; (S.N.); (F.N.); (J.M.); (G.H.); (J.C.); (Y.M.)
| | - Larisa Gulina
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii Prospect, Petergof, 198504 St. Petersburg, Russia; (L.G.); (V.T.)
| | - Polina Rudakovskaya
- Center of Photonics & Quantum Materials, Skolkovo Institute of Science and Technology, 3 Nobelya Str., 121205 Moscow, Russia; (P.R.); (D.G.)
| | - Jizhai Cui
- Department of Materials Science, Fudan University, Shanghai 200433, China; (S.N.); (F.N.); (J.M.); (G.H.); (J.C.); (Y.M.)
| | - Valeri Tolstoy
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii Prospect, Petergof, 198504 St. Petersburg, Russia; (L.G.); (V.T.)
| | - Dmitry Gorin
- Center of Photonics & Quantum Materials, Skolkovo Institute of Science and Technology, 3 Nobelya Str., 121205 Moscow, Russia; (P.R.); (D.G.)
| | - Yongfeng Mei
- Department of Materials Science, Fudan University, Shanghai 200433, China; (S.N.); (F.N.); (J.M.); (G.H.); (J.C.); (Y.M.)
| | - Alexander A. Solovev
- Department of Materials Science, Fudan University, Shanghai 200433, China; (S.N.); (F.N.); (J.M.); (G.H.); (J.C.); (Y.M.)
| | - Krishna Kanti Dey
- Discipline of Physics, Indian Institute of Technology Gandhinagar, Palaj 382355, Gujarat, India; (A.K.S.); (S.M.)
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Lin R, Yu W, Chen X, Gao H. Self-Propelled Micro/Nanomotors for Tumor Targeting Delivery and Therapy. Adv Healthc Mater 2021; 10:e2001212. [PMID: 32975892 DOI: 10.1002/adhm.202001212] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 09/14/2020] [Indexed: 12/14/2022]
Abstract
Cancer is still one of the most serious diseases with threats to health and life. Although some advances have been made in targeting delivery of antitumor drugs over the past number of years, there are still many problems needing to be solved, such as poor efficacy and high systemic toxicity. Micro/nanomotors capable of self-propulsion in fluid provide promising platforms for improving the efficiency of tumor delivery. Herein, the recent progress in micro/nanomotors for tumor targeting delivery and therapy is reviewed, with special focus on the contributions of micro/nanomotors to the different stages of tumor targeting delivery as well as the combination therapy by micro/nanomotors. The present limitations and future directions are also put forward for further development.
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Affiliation(s)
- Ruyi Lin
- College of Materials Science and Engineering Sichuan University Chengdu 610064 P. R. China
- Key Laboratory of Drug‐Targeting and Drug Delivery System of the Education Ministry Sichuan Engineering Laboratory for Plant‐Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610064 P. R. China
| | - Wenqi Yu
- Key Laboratory of Drug‐Targeting and Drug Delivery System of the Education Ministry Sichuan Engineering Laboratory for Plant‐Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610064 P. R. China
| | - Xianchun Chen
- College of Materials Science and Engineering Sichuan University Chengdu 610064 P. R. China
| | - Huile Gao
- Key Laboratory of Drug‐Targeting and Drug Delivery System of the Education Ministry Sichuan Engineering Laboratory for Plant‐Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610064 P. R. China
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He X, Büchel R, Figi R, Zhang Y, Bahk Y, Ma J, Wang J. High-performance carbon/MnO 2 micromotors and their applications for pollutant removal. CHEMOSPHERE 2019; 219:427-435. [PMID: 30551109 DOI: 10.1016/j.chemosphere.2018.12.051] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 12/02/2018] [Accepted: 12/06/2018] [Indexed: 06/09/2023]
Abstract
The wide applications of particulate micromotors in practice, especially in the removal of environmental pollutants, have been limited by the low production yields and demand on high concentration of fuel such as H2O2. Carbon/MnO2 micromotors were made hydrothermally using different carbon allotropes including graphite, carbon nanotube (CNT), and graphene for treatment of methylene blue and toxic Ag ions. The obtained micromotors showed high speed of self-propulsion. The highest speed of MnO2-based micromotors to date was observed for CNT/MnO2 (>2 mm/s, 5 wt% H2O2, 0.5 wt% surfactant). Moreover, different from previous studies, even with low H2O2 concentration (0.5 wt%) and without surfactant addition, the micromotors could also be well dispersed in water by the O2 stream released from their reaction with H2O2. The carbon/MnO2 micromotors removed both methylene blue (>80%) and Ag ions (100%) effectively within 15 min by catalytic decomposition and adsorption. Especially high adsorption capacity of Ag (600 mg/g) was measured on graphite/MnO2 and graphene/MnO2 micromotors.
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Affiliation(s)
- Xu He
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, PR China; Institute of Environmental Engineering, ETH Zurich, Schafmattstrasse 6, 8093, Zurich, Switzerland
| | - Robert Büchel
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092, Zurich, Switzerland
| | - Renato Figi
- Advanced Analytical Technologies Laboratory, EMPA, Überlandstrasse 129, 8600, Dübendorf, Switzerland
| | - Yucheng Zhang
- Electron Microscopy Center, EMPA, Überlandstrasse 129, 8600, Dübendorf, Switzerland
| | - Yeonkyoung Bahk
- Institute of Environmental Engineering, ETH Zurich, Schafmattstrasse 6, 8093, Zurich, Switzerland
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, PR China
| | - Jing Wang
- Institute of Environmental Engineering, ETH Zurich, Schafmattstrasse 6, 8093, Zurich, Switzerland; Advanced Analytical Technologies Laboratory, EMPA, Überlandstrasse 129, 8600, Dübendorf, Switzerland.
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5
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Li D, Liu Y, Yang Y, Shen Y. A fast and powerful swimming microrobot with a serrated tail enhanced propulsion interface. NANOSCALE 2018; 10:19673-19677. [PMID: 30209454 DOI: 10.1039/c8nr04907f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We demonstrate the use of a swimming microrobot with a serrated tail in the propulsion region to enhance reaction interfaces. A 3D printed tail with multiple catalytic channels and nanointerfaces could reinforce the microrobot, allowing it to reach swimming speeds of ∼1 mm s-1 and enabling it to transport objects with a weight 6500 times that of itself. This research represents a new concept in swimming microrobot design and is expected to benefit a wide range of engineering fields.
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Affiliation(s)
- Dengfeng Li
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China.
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6
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Li ZL, Wang W, Li M, Zhang MJ, Tang MJ, Su YY, Liu Z, Ju XJ, Xie R, Chu LY. Facile Fabrication of Bubble-Propelled Micromotors Carrying Nanocatalysts for Water Remediation. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b04941] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
| | | | | | - Mao-Jie Zhang
- College of Engineering, Sichuan Normal University, Chengdu, Sichuan 610068, P. R. China
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7
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Jiao J, Xu D, Liu Y, Zhao W, Zhang J, Zheng T, Feng H, Ma X. Mini-EmulsionFabricated Magnetic and Fluorescent Hybrid Janus Micro-Motors. MICROMACHINES 2018; 9:E83. [PMID: 30393358 PMCID: PMC6187295 DOI: 10.3390/mi9020083] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 02/09/2018] [Accepted: 02/11/2018] [Indexed: 11/18/2022]
Abstract
Self-propelling micro/nano-motors have attracted great attention due to their controllable active motion and various functional attributes. To date, a variety of technologies have been reported for the fabrication of micro/nano-motors. However, there are still several challenges that need to be addressed. One of them is to endow micro/nano-motors with multi-functionalities by a facile fabrication process. Here, we present a universal approach, adopted from the emulsion templating method, for the fabrication of Janus micro-motors. With a one-step process, magnetic nanoparticles and fluorescent dyes are simultaneously embedded into the microparticles. The self-propelled motors can be used as an active label or fluorescent tracer through manipulation of their motion using magnetic guidance.
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Affiliation(s)
- Jiapu Jiao
- State Key Lab of Advanced Welding and Joining, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
| | - Dandan Xu
- State Key Lab of Advanced Welding and Joining, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
| | - Yuhuan Liu
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
| | - Weiwei Zhao
- State Key Lab of Advanced Welding and Joining, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
| | - Jiaheng Zhang
- State Key Lab of Advanced Welding and Joining, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
| | - Tingting Zheng
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen-PKU-HKUST Medical Center, Shenzhen 518036, China.
| | - Huanhuan Feng
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
| | - Xing Ma
- State Key Lab of Advanced Welding and Joining, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
- Key Laboratory of Micro-systems and Micro-structures Manufacturing of Ministry of Education, Harbin Institute of Technology, Harbin 150001, China.
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8
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Ning H, Zhang Y, Zhu H, Ingham A, Huang G, Mei Y, Solovev AA. Geometry Design, Principles and Assembly of Micromotors. MICROMACHINES 2018; 9:E75. [PMID: 30393351 PMCID: PMC6187850 DOI: 10.3390/mi9020075] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 02/06/2018] [Accepted: 02/07/2018] [Indexed: 01/19/2023]
Abstract
Discovery of bio-inspired, self-propelled and externally-powered nano-/micro-motors, rotors and engines (micromachines) is considered a potentially revolutionary paradigm in nanoscience. Nature knows how to combine different elements together in a fluidic state for intelligent design of nano-/micro-machines, which operate by pumping, stirring, and diffusion of their internal components. Taking inspirations from nature, scientists endeavor to develop the best materials, geometries, and conditions for self-propelled motion, and to better understand their mechanisms of motion and interactions. Today, microfluidic technology offers considerable advantages for the next generation of biomimetic particles, droplets and capsules. This review summarizes recent achievements in the field of nano-/micromotors, and methods of their external control and collective behaviors, which may stimulate new ideas for a broad range of applications.
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Affiliation(s)
- Huanpo Ning
- Department of Materials Science, Fudan University, 220 Handan Road, 200433 Shanghai, China.
| | - Yan Zhang
- Department of Materials Science, Fudan University, 220 Handan Road, 200433 Shanghai, China.
| | - Hong Zhu
- Department of Materials Science, Fudan University, 220 Handan Road, 200433 Shanghai, China.
| | - Andreas Ingham
- Department of Biology, University of Copenhagen, 5 Ole Maaløes Vej, DK-2200, 1165 København, Denmark.
| | - Gaoshan Huang
- Department of Materials Science, Fudan University, 220 Handan Road, 200433 Shanghai, China.
| | - Yongfeng Mei
- Department of Materials Science, Fudan University, 220 Handan Road, 200433 Shanghai, China.
| | - Alexander A Solovev
- Department of Materials Science, Fudan University, 220 Handan Road, 200433 Shanghai, China.
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Fang L, Wang W, Liu Y, Xie Z, Chen L. Janus nanostructures formed by mesoporous silica coating Au nanorods for near-infrared chemo–photothermal therapy. J Mater Chem B 2017; 5:8833-8838. [DOI: 10.1039/c7tb02144e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Mesoporous silica was partly coated on AuNRs (Janus AuNRs@mSiO2) as a hyperthermia and drug delivery platform for chemo–photothermal therapy.
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Affiliation(s)
- Lin Fang
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Weiqi Wang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Yang Liu
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Zhigang Xie
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Li Chen
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
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Wang YS, Wang Y, Xia H, Wang G, Zhang ZY, Han DD, Lv C, Feng J, Sun HB. Preparation of a Fe 3O 4-Au-GO nanocomposite for simultaneous treatment of oil/water separation and dye decomposition. NANOSCALE 2016; 8:17451-17457. [PMID: 27714192 DOI: 10.1039/c6nr05633d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A nanocomposite capable of simultaneously controlling multiple water pollutants (soluble organic dye and insoluble chemical solvent) has been obtained. The Au and Fe3O4 nanoparticles (NPs) were modified on a graphene oxide (GO) surface via light reduction and covalent attachment. The obtained Fe3O4-Au-GO nanocomposite has magnetic driving ability and catalytic applications. The nanocomposite can form emulsions after wrapping an insoluble and volatile organic solvent inside; moreover, the multi-layer graphene shell structure may delay volatilization of the solvent, ensuring that the oil droplets are collected efficiently and completely by the Fe3O4-Au-GO nanocomposite. At the same time, the Au NPs on the surface of the composite can effectively catalyze the decomposition of an organic dye in water and the recovery of the nanocomposite catalyst can also be realized using an external magnetic field. The simultaneous treatment of non-soluble oil (organic solvents) and organic dyes in water can be realized by the Fe3O4-Au-GO nanocomposite. Therefore, based on surface modification of GO, one material with two types of water pollution treatment functions was realized. This provides a new way for the simultaneous treatment of oil separation and dye decomposition, and the assembled structure may result in emulsions to give new applications in fuel cells and other fields.
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Affiliation(s)
- Ying-Shuai Wang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
| | - Yan Wang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
| | - Hong Xia
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
| | - Gong Wang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
| | - Zhen-Yu Zhang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
| | - Dong-Dong Han
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
| | - Chao Lv
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
| | - Jing Feng
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
| | - Hong-Bo Sun
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
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11
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Conclusions. Drug Deliv 2016. [DOI: 10.1201/9781315382579-25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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12
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Li Y, Mou F, Chen C, You M, Yin Y, Xu L, Guan J. Light-controlled bubble propulsion of amorphous TiO2/Au Janus micromotors. RSC Adv 2016. [DOI: 10.1039/c5ra26798f] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The bubble-propelled amorphous TiO2/Au Janus micromotors with the reversibly light-controlled motion state and speed have been demonstrated by utilizing the efficient photocatalytic H2O2 decomposition over the in situ H2O2 sensitized amorphous TiO2.
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Affiliation(s)
- Yan Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R. China
| | - Fangzhi Mou
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R. China
| | - Chuanrui Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R. China
| | - Ming You
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R. China
| | - Yixia Yin
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R. China
| | - Leilei Xu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R. China
| | - Jianguo Guan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R. China
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Teo WZ, Wang H, Pumera M. Beyond platinum: silver-catalyst based bubble-propelled tubular micromotors. Chem Commun (Camb) 2016; 52:4333-6. [DOI: 10.1039/c6cc00115g] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Tubular micromotors prepared with silver catalyst exhibited high mobility and could reduce reliance on scarce Pt metal.
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Affiliation(s)
- Wei Zhe Teo
- Division of Chemistry & Biological Chemistry
- School of Physical and Chemical Sciences
- Nanyang Technological University
- Singapore
| | - Hong Wang
- Division of Chemistry & Biological Chemistry
- School of Physical and Chemical Sciences
- Nanyang Technological University
- Singapore
| | - Martin Pumera
- Division of Chemistry & Biological Chemistry
- School of Physical and Chemical Sciences
- Nanyang Technological University
- Singapore
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Singh VV, Wang J. Nano/micromotors for security/defense applications. A review. NANOSCALE 2015; 7:19377-19389. [PMID: 26554557 DOI: 10.1039/c5nr06254c] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The new capabilities of man-made micro/nanomotors open up considerable opportunities for diverse security and defense applications. This review highlights new micromotor-based strategies for enhanced security monitoring and detoxification of chemical and biological warfare agents (CBWA). The movement of receptor-functionalized nanomotors offers great potential for sensing and isolating target bio-threats from complex samples. New mobile reactive materials based on zeolite or activated carbon offer considerable promise for the accelerated removal of chemical warfare agents. A wide range of proof-of-concept motor-based approaches, including the detection and destruction of anthrax spores, 'on-off' nerve-agent detection or effective neutralization of chemical warfare agents have thus been demonstrated. The propulsion of micromotors and their corresponding bubble tails impart significant mixing that greatly accelerates such detoxification processes. These nanomotors will thus empower sensing and destruction where stirring large quantities of decontaminating reagents and controlled mechanical agitation are impossible or undesired. New technological breakthroughs and greater sophistication of micro/nanoscale machines will lead to rapid translation of the micromotor research activity into practical defense applications, addressing the escalating threat of CBWA.
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Affiliation(s)
- Virendra V Singh
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA 92093, USA.
| | - Joseph Wang
- Department of Nanoengineering, University of California, San Diego, La Jolla, CA 92093, USA.
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