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Li Y, Bian J, Lin T, Zhang Y, Liu X, Liu Y. Sensing of mercury and silver ions using branched Au nanoparticles prepared by hyperbranched polyethylenimine fabricated and capped AuNPs seeds. NANOTECHNOLOGY 2021; 32:375702. [PMID: 34044377 DOI: 10.1088/1361-6528/ac05eb] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/27/2021] [Indexed: 06/12/2023]
Abstract
Branched AuNPs usually have two or more local surface plasmon resonance (LSPR) absorption bands due to their structural anisotropy, and the LSPR performance is more sensitive to the changes of environmental refractive index than that of spherical AuNPs. The design and preparation of branched AuNPs as colorimetric probes is expected to improve the selectivity and sensitivity of detection of targets. In this paper, branched AuNPs were innovatively synthesized via hyperbranched polyethylenimine (HPEI) fabricated and capped AuNPs as seeds and cetyltrimethylammonium bromide (CTAB) as template agent. The branched AuNPs were characterized by TEM, DLS, zeta potentials and UV-vis spectra. Using the branched AuNPs as a colorimetric probe, the detection system for Hg2+and Ag+showed bright color changes from blue to orange and blue to green based on the morphological evolution of branched AuNPs. The branched AuNPs could selectively detect Hg2+and Ag+at concentrations as low as 77 and 140 nM, respectively. Moreover, this unusual colorimetric method has been successfully used in real water samples and has great potential as a simple, rapid, sensitive and selective method for the detection of Hg2+and Ag+.
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Affiliation(s)
- Yuxi Li
- School of Chemistry and Materials Science, Ludong University, Yantai 264001, People's Republic of China
| | - Jie Bian
- School of Chemistry and Materials Science, Ludong University, Yantai 264001, People's Republic of China
| | - Tao Lin
- School of Chemistry and Materials Science, Ludong University, Yantai 264001, People's Republic of China
| | - Yiyun Zhang
- School of Chemistry and Materials Science, Ludong University, Yantai 264001, People's Republic of China
| | - Xunyong Liu
- School of Chemistry and Materials Science, Ludong University, Yantai 264001, People's Republic of China
| | - Yi Liu
- School of Chemistry and Materials Science, Ludong University, Yantai 264001, People's Republic of China
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2
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Core-shell iron oxide@cathecol-polymer@palladium/copper nanocomposites as efficient and sustainable catalysts in cross-coupling reactions. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111042] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Portnov IV, Möller M, Richtering W, Potemkin II. Microgel in a Pore: Intraparticle Segregation or Snail-like Behavior Caused by Collapse and Swelling. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01569] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Ivan V. Portnov
- Physics Department, Lomonosov Moscow State University, Moscow 119991, Russian Federation
- DWI − Leibniz Institute for Interactive Materials, Aachen 52056, Germany
| | - Martin Möller
- DWI − Leibniz Institute for Interactive Materials, Aachen 52056, Germany
| | - Walter Richtering
- DWI − Leibniz Institute for Interactive Materials, Aachen 52056, Germany
| | - Igor I. Potemkin
- Physics Department, Lomonosov Moscow State University, Moscow 119991, Russian Federation
- DWI − Leibniz Institute for Interactive Materials, Aachen 52056, Germany
- National Research
South Ural State University, Chelyabinsk 454080, Russian Federation
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4
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Cui K, Fan C, Chen G, Qiu Y, Li M, Lin M, Wan JB, Cai C, Xiao Z. para-Aminothiophenol Radical Reaction-Functionalized Gold Nanoprobe for One-to-All Detection of Five Reactive Oxygen Species In Vivo. Anal Chem 2018; 90:12137-12144. [PMID: 30207154 DOI: 10.1021/acs.analchem.8b03116] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Five major reactive oxygen species (ROS) are generated in diseases including H2O2, •OH, O2•-, ROO•, and 1O2. Simultaneous detection of the five ROS with a single probe is crucial for a comprehensive understanding of the development and progression of many diseases, such as cancer and inflammatory diseases. However, currently reported detection systems are limited by targeting one ROS with one probe. This one-to-one detection mode may fail to sufficiently unveil the diseased state. In this study, we achieved simultaneous detection of all the five ROS with one probe (i.e., one-to-all detection), by designing a novel para-aminothiophenol (PATP) and hemin-decorated gold (Au/PATP/Hemin) nanoprobe. The design is principled by our discovery that PATP can react with •OH, O2•-, ROO•, and 1O2 by a radical oxidative coupling mechanism to form 4,4'-dimercaptoazobenzene (DMAB). The DMAB then elicited strong characteristic surface-enhanced Raman scattering (SERS) peaks at 1142, 1386, and 1432 cm-1; which in turn enables direct detection of •OH, O2•-, ROO•, and 1O2 and indirect detection of H2O2 by hemin-catalyzed fenton reaction to convert H2O2 into •OH. In two representative ROS-elevated mice models of tumors and allergic dermatitis, the Au/PATP/Hemin nanoprobe demonstrated its robust performance of monitoring tumor development and inflammation progression in a highly sensitive and quantitative manner.
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Affiliation(s)
| | | | | | | | | | | | - Jian-Bo Wan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences , University of Macau , Taipa , Macao , China
| | - Changsi Cai
- Center for Neuroscience, Faculty of Medicine and Health Science , University of Copenhagen , 2200 Copenhagen N , Denmark
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Cao PF, de Leon A, Rong L, Yin KZ, Abenojar EC, Su Z, Tiu BDB, Exner AA, Baer E, Advincula RC. Polymer Nanosheet Containing Star-Like Copolymers: A Novel Scalable Controlled Release System. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1800115. [PMID: 29700977 DOI: 10.1002/smll.201800115] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/16/2018] [Indexed: 06/08/2023]
Abstract
Poly(ε-caprolactone) (PCL)-based nanomaterials, such as nanoparticles and liposomes, have exhibited great potential as controlled release systems, but the difficulties in large-scale fabrication limit their practical applications. Among the various methods being developed to fabricate polymer nanosheets (PNSs) for different applications, such as Langmuir-Blodgett technique and layer-by-layer assembly, are very effort consuming, and only a few PNSs can be obtained. In this paper, poly(ε-caprolactone)-based PNSs with adjustable thickness are obtained in large quantity by simple water exposure of multilayer polymer films, which are fabricated via a layer multiplying coextrusion method. The PNS is also demonstrated as a novel controlled guest release system, in which release kinetics are adjustable by the nanosheet thickness, pH values of the media, and the presence of protecting layers. Theoretical simulations, including Korsmeyer-Peppas model and Finite-element analysis, are also employed to discern the observed guest-release mechanisms.
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Affiliation(s)
- Peng-Fei Cao
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA
| | - Al de Leon
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA
- Department of Radiology, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Lihan Rong
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Ke-Zhen Yin
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Eric C Abenojar
- Department of Radiology, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Zhe Su
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Brylee David B Tiu
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA
- Department of Bioengineering and Materials Science and Engineering, University of California Berkeley, Berkeley, CA, 94720, USA
| | - Agata A Exner
- Department of Radiology, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Eric Baer
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Rigoberto C Advincula
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA
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Self-assembly of rarely polymer-grafted nanoparticles in dilute solutions and on a surface: From non-spherical vesicles to graphene-like sheets. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.03.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Liu X, Zhu C, Xu L, Dai Y, Liu Y, Liu Y. Green and Facile Synthesis of Highly Stable Gold Nanoparticles via Hyperbranched Polymer In-Situ Reduction and Their Application in Ag⁺ Detection and Separation. Polymers (Basel) 2018; 10:polym10010042. [PMID: 30966079 PMCID: PMC6415124 DOI: 10.3390/polym10010042] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 12/25/2017] [Accepted: 12/30/2017] [Indexed: 01/12/2023] Open
Abstract
The development of a green and facile strategy for synthesizing high stable gold nanoparticles (AuNPs) is still highly challenging. Additionally, the main problems regarding AuNPs based colorimetric sensors are their poor selectivity and low sensitivity, as well their tendency to aggregate during their synthesis and sensing process. Herein, we present an in-situ reduction strategy to synthesize thermoresponsive hyperbranched polymer (i.e., Hyperbranched polyethylenimine-terminal isobutyramide (HPEI-IBAm)) functionalized AuNPs. The HPEI-IBAm-AuNPs show excellent thermal stability up to 200 °C, high tolerance of a wide range of pH value (3⁻13), and high salt resistance. HPEI-IBAm acted as the template, the reducing agent, and the stabilizing agent for the preparation of AuNPs. The HPEI-IBAm-AuNPs can be used as colorimetric sensors for the detection of Ag⁺. In the detecting process, HPEI-IBAm serves as a trigger agent to cause an unusual color change from red to brown. This new non-aggregation-based colorimetric sensor showed high stability (maintaining the color lasting without fading), high selectivity, and high sensitivity with an extremely low detection limit of 7.22 nM and a good linear relationship in a wide concentration range of 0⁻2.0 mM (R² = 0.9921). Significantly, based on the thermoresponsive property of the HPEI-IBAm, the AuNPs/Ag composites can be separated after sensing detection, which can avoid secondary pollutions. Therefore, the green preparation and the applications of the unusual colorimetric sensor truly embody the concepts of energy saving, environmental protection, and sustainable development.
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Affiliation(s)
- Xunyong Liu
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, Shandong Province, China.
| | - Chenxue Zhu
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, Shandong Province, China.
| | - Li Xu
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, Shandong Province, China.
| | - Yuqing Dai
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, Shandong Province, China.
| | - Yanli Liu
- School of Information and Electronic Engineering, Shandong Technology and Business University, Yantai 264005, Shandong Province, China.
| | - Yi Liu
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, Shandong Province, China.
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Zhang G, Tang S, Li A, Zhu L. Thermally Stable Metallic Nanoparticles Prepared via Core-Cross-linked Block Copolymer Micellar Nanoreactors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:6353-6362. [PMID: 28578569 DOI: 10.1021/acs.langmuir.7b00573] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Thermally stable metallic nanoparticles (MNPs) are highly desirable for the melt processing of polymer nanocomposites. However, due to the high surface energy penalty and decreased melting temperature, MNPs are easy to agglomerate and lose their unique properties if there is no protection or confinement layer. In this work, we report a facile and efficient way to synthesize thermally stable MNPs using core-cross-linked polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) reverse micelles as nanoreactors. From infrared results, gold, silver, and palladium ions exhibited distinctive coordination to the 4VP groups with varying chelation strengths. Compared to the non-cross-linked micelles, 1,4-dibromobutane (DBB)-cross-linking of the P4VP cores provided several advantages. First, it prevented severe swelling of the P4VP cores caused by the reducing agents and subsequent merger of swollen micelles. Second, the quaternized P4VP with hydrophilicity enhanced the uptake speed of precursor metal ions into the cores. Third, the cross-linked cores greatly stabilized the MNPs against the high-temperature environment (e.g., 110 °C for 40 h in toluene). In addition, the solubility of the reducing agents also played an important role. Anhydrous hydrazine could swell the P4VP cores and concentric core-shell particle morphology was obtained. On the contrary, triethylsilane could not swell the P4VP cores and thus eccentric core-shell particle morphology was observed. Only the concentric core-shell MNPs exhibited good thermal stability, whereas the eccentric core-shell MNPs did not. This work suggested that these thermally stable MNPs could be good candidates for the melt processing of functional polymer nanocomposites.
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Affiliation(s)
- Guoqiang Zhang
- Center for Layered Polymeric Systems (CLiPS) and Department of Macromolecular Science and Engineering, Case Western Reserve University , Cleveland, Ohio 44106-7202, United States
| | - Saide Tang
- Center for Layered Polymeric Systems (CLiPS) and Department of Macromolecular Science and Engineering, Case Western Reserve University , Cleveland, Ohio 44106-7202, United States
| | - Aixiang Li
- School of Materials Science and Engineering, Shandong University of Technology , Zibo 255049, People's Republic of China
| | - Lei Zhu
- Center for Layered Polymeric Systems (CLiPS) and Department of Macromolecular Science and Engineering, Case Western Reserve University , Cleveland, Ohio 44106-7202, United States
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Gao Y, Zhu X, Zhang Y, Chen X, Wang L, Feng W, Huang C, Li F. In vivo biodistribution and passive accumulation of upconversion nanoparticles in colorectal cancer models via intraperitoneal injection. RSC Adv 2017. [DOI: 10.1039/c7ra04349j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Cit-UCNPs after IP injection exhibited significantly different biological processes from those after IV injection. The passive-tumour targeting effectiveness of cit-UCNPs via the IP route was higher than that via the IV route.
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Affiliation(s)
- Yilin Gao
- Department of Chemistry
- State Key Laboratory of Molecular Engineering of Polymers
- Institutes of Biomedical Sciences
- Collaborative Innovation Center of Chemistry for Energy Materials
- Fudan University
| | - Xingjun Zhu
- Department of Chemistry
- State Key Laboratory of Molecular Engineering of Polymers
- Institutes of Biomedical Sciences
- Collaborative Innovation Center of Chemistry for Energy Materials
- Fudan University
| | - Yuwen Zhang
- Department of Chemistry
- State Key Laboratory of Molecular Engineering of Polymers
- Institutes of Biomedical Sciences
- Collaborative Innovation Center of Chemistry for Energy Materials
- Fudan University
| | - Xiaofeng Chen
- Center of Analysis and Measurement
- Fudan University
- Shanghai 200433
- P.R. China
| | - Li Wang
- Center of Analysis and Measurement
- Fudan University
- Shanghai 200433
- P.R. China
| | - Wei Feng
- Department of Chemistry
- State Key Laboratory of Molecular Engineering of Polymers
- Institutes of Biomedical Sciences
- Collaborative Innovation Center of Chemistry for Energy Materials
- Fudan University
| | - Chunhui Huang
- Department of Chemistry
- State Key Laboratory of Molecular Engineering of Polymers
- Institutes of Biomedical Sciences
- Collaborative Innovation Center of Chemistry for Energy Materials
- Fudan University
| | - Fuyou Li
- Department of Chemistry
- State Key Laboratory of Molecular Engineering of Polymers
- Institutes of Biomedical Sciences
- Collaborative Innovation Center of Chemistry for Energy Materials
- Fudan University
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