1
|
Yang G, Chen Y, Shi R, Chen R, Gao S, Zhang X, Rao Y, Lu Y, Peng Y, Qing Z, Song C. Platinum Nanoparticles Loaded Graphitic Carbon Nitride Nanosheets with Enhanced Peroxidase-like Activity for H 2O 2 and Oxidase-Based Sensing. Molecules 2023; 28:molecules28093736. [PMID: 37175146 PMCID: PMC10179752 DOI: 10.3390/molecules28093736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/08/2023] [Accepted: 04/17/2023] [Indexed: 05/15/2023] Open
Abstract
Platinum nanoparticles (PtNPs) are classical peroxidase-like nanozyme; self-agglomeration of nanoparticles leads to the undesirable reduction in stability and catalytic activity. Herein, a hybrid peroxidase-like nanocatalyst consisting of PtNPs in situ growing on g-C3N4 nanosheets with enhanced peroxidase-mimic catalytic activity (PtNP@g-C3N4 nanosheets) was prepared for H2O2 and oxidase-based colorimetric assay. g-C3N4 nanosheets can be used as carriers to solve the problem of poor stability of PtNPs. We observed that the catalytic ability could be maintained for more than 90 days. PtNP@g-C3N4 nanosheets could quickly catalyze the oxidation of 3,3',5,5'-tetramethylbenzidine (TMB), and the absorbance of blue color oxidized TMB (oxTMB) showed a robust linear relationship with the concentration of H2O2 (the detection limit (LOD): 3.33 μM). By utilizing H2O2 as a mediator, this strategy can be applied to oxidase-based biomolecules (glucose, organophosphorus, and so on, that generate or consume hydrogen peroxide) sensing. As a proof of concept, a sensitive assay of cholesterol that combined PtNP@g-C3N4 nanosheets with cholesterol oxidase (ChOx) cascade catalytic reaction was constructed with an LOD of 9.35 μM in a widespread range from 10 to 800 μM (R2 = 0.9981). In addition, we also verified its ability to detect cholesterol in fetal bovine serum. These results showed application prospect of PtNP@g-C3N4 nanosheets-based colorimetry in sensing and clinical medical detection.
Collapse
Affiliation(s)
- Gege Yang
- Department of Applied Chemistry, School of Science, Key Laboratory of Agricultural Sensors, Ministry of Agriculture and Rural Affairs, Anhui Agricultural University, Hefei 230036, China
- Hunan Provincial Key Laboratory of Cytochemistry, Changsha University of Science and Technology, Changsha 410114, China
| | - Ying Chen
- Department of Applied Chemistry, School of Science, Key Laboratory of Agricultural Sensors, Ministry of Agriculture and Rural Affairs, Anhui Agricultural University, Hefei 230036, China
| | - Rui Shi
- School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Rongrong Chen
- School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Shanshan Gao
- Department of Applied Chemistry, School of Science, Key Laboratory of Agricultural Sensors, Ministry of Agriculture and Rural Affairs, Anhui Agricultural University, Hefei 230036, China
| | - Xin Zhang
- Department of Applied Chemistry, School of Science, Key Laboratory of Agricultural Sensors, Ministry of Agriculture and Rural Affairs, Anhui Agricultural University, Hefei 230036, China
| | - Yuan Rao
- Department of Applied Chemistry, School of Science, Key Laboratory of Agricultural Sensors, Ministry of Agriculture and Rural Affairs, Anhui Agricultural University, Hefei 230036, China
| | - Ying Lu
- Department of Applied Chemistry, School of Science, Key Laboratory of Agricultural Sensors, Ministry of Agriculture and Rural Affairs, Anhui Agricultural University, Hefei 230036, China
| | - Yuancheng Peng
- School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Zhihe Qing
- Hunan Provincial Key Laboratory of Cytochemistry, Changsha University of Science and Technology, Changsha 410114, China
| | - Chunxia Song
- Department of Applied Chemistry, School of Science, Key Laboratory of Agricultural Sensors, Ministry of Agriculture and Rural Affairs, Anhui Agricultural University, Hefei 230036, China
- Hunan Provincial Key Laboratory of Cytochemistry, Changsha University of Science and Technology, Changsha 410114, China
| |
Collapse
|
2
|
Liu X, Moradi MA, Bus T, Heuts JPA, Debije MG, Schenning APHJ. Monodisperse Liquid Crystalline Polymer Shells with Programmable Alignment and Shape Prepared by Seeded Dispersion Polymerization. Macromolecules 2021; 54:6052-6060. [PMID: 34276068 PMCID: PMC8280615 DOI: 10.1021/acs.macromol.1c00884] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 06/04/2021] [Indexed: 11/30/2022]
Abstract
![]()
Monodisperse,
micrometer-sized liquid crystalline (LC) shells are
prepared by seeded dispersion polymerization. After polymerizing LC
monomer mixtures in the presence of non-crosslinked polymer seeds,
hollow LC polymer shells with programmable alignment and shape are
prepared by removing the seeds. The LC alignment in the LC polymer
shells can be easily manipulated by the polymer seeds, as a radial
alignment is observed with amorphous poly(phenyl methacrylate) seeds
and a bipolar alignment is observed with bipolar LC polymer seeds.
After removal of the seeds, the radially aligned samples give radially
aligned shells with small dimples. The resulting bipolar LC polymer
shells collapse into a biconcave shape. Polarized optical microscopy
and transmission electron microscopy indicate that the collapse occurs
at the defect points in the shell. In the case of a lower crosslink
density, LC polymer hollow shells with larger dimples are obtained,
resulting in cup-shaped polymer particles. Biconcave LC polymer shells
based on other LC mixtures have also been prepared, showing the versatility
of the seeded dispersion polymerization method.
Collapse
Affiliation(s)
- Xiaohong Liu
- Stimuli-responsive Functional Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands
| | - Mohammad-Amin Moradi
- Institute for Complex Molecular Systems, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands
| | - Tom Bus
- Stimuli-responsive Functional Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands
| | - Johan P A Heuts
- Institute for Complex Molecular Systems, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands.,Supramolecular Polymer Chemistry Group, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Michael G Debije
- Stimuli-responsive Functional Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Albert P H J Schenning
- Stimuli-responsive Functional Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands
| |
Collapse
|
3
|
Yang X, Sun Z, Huang X, Zhang M, Bian G, Qi Y, Yang X. Palladium functionalized yolk-shell nanorattles with tunable surface wettability for controllable catalytic selectivity. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
4
|
Li X, Ye S, Zhang YC, Zhao HP, Huang Y, Zhang B, Cai T. Magnetic Janus nanocomposites with iridium(iii) complexes for heterogeneous catalysis of logic controlled RAFT polymerization using multiplexed external switching. NANOSCALE 2020; 12:7595-7603. [PMID: 32207754 DOI: 10.1039/d0nr00402b] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Photoinduced electron/energy transfer-reversible addition-fragmentation chain transfer (PET-RAFT) polymerization has emerged as a versatile and highly-efficient method for the polymerization of more activated monomers including N,N-dimethylacrylamide and methyl acrylate, and less activated monomers including N-vinylpyrrolidone and vinyl acetate, whilst imposing composition, sequence and spatiotemporal regulation. Although significant progress has been achieved in terms of ability to regulate PET-RAFT polymerization through the implementation of myriad environmental cues, it is still a great challenge to introduce multiple external switches within a single catalyst to accomplish logic toggling of controlled radical polymerization (CRP). Herein, we report the synthesis and characterization of Fe3O4@aSiO2@PNMIr Janus nanocomposites coupled with immobilized heteroleptic iridium(iii) complexes for heterogeneous catalysis of PET-RAFT polymerization. With this catalytic nanoarchitecture, we demonstrate multi-stimuli switching of CRPs using three different external physical manipulations: light "ON"/"OFF", magnet "OUT"/"IN" and temperature "LOW"/"HIGH". In addition, these magnetic Janus nanocomposites endowed radical polymerization with various attractive characteristics such as compatibility of myriad monomer formulations including "more activated" and "less activated" monomers, unique oxygen tolerance and ppm-level catalyst dosage. Logic-controlled polymerization with Fe3O4@aSiO2@PNMIr nanocomposites provides a straightforward, robust and user-friendly strategy for realizing multiplexed external switching of polymer propagation using a single nanocatalyst without the involvement of exogenous reagents.
Collapse
Affiliation(s)
- Xue Li
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China. and Suzhou Institute of Wuhan University, Suzhou, Jiangsu 215123, P. R. China
| | - Sunjie Ye
- School of Physics and Astronomy, University of Leeds, LS2 9JT, Leeds, UK
| | - Yu Chi Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China. and Suzhou Institute of Wuhan University, Suzhou, Jiangsu 215123, P. R. China
| | - Hong Peng Zhao
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China. and Suzhou Institute of Wuhan University, Suzhou, Jiangsu 215123, P. R. China
| | - Ya Huang
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China. and Suzhou Institute of Wuhan University, Suzhou, Jiangsu 215123, P. R. China
| | - Bin Zhang
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
| | - Tao Cai
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China. and Suzhou Institute of Wuhan University, Suzhou, Jiangsu 215123, P. R. China
| |
Collapse
|
5
|
Li JL, Wang CP, Xiang Z, Zhao Y, Zhang Y, Li X, Cai T. "Button and Buttonhole" Supramolecular Structure Enables the Self-Healing Behaviors of Functionalized Poly(ether sulfone) Membranes for Osmotic Power Generation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:42322-42329. [PMID: 31664807 DOI: 10.1021/acsami.9b16895] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Osmotic power generation has emerged as an advanced technology toward water-energy nexus to tackle global water pollution. It provides a sustainable use of salinity gradient from water resources yet encounters major obstacles caused by pressure-retarded osmosis (PRO) membrane fouling. Although membranes with good antifouling properties are widely studied, their antifouling functions are readily lost when scratches or detachments occur through physical damage during operation and chemical degradation by water and corrosive foulants. Consequently, it is important to develop antifouling membranes with autonomous self-healing capabilities. Herein, self-healable functionalized poly(ether sulfone) (PES) antifouling membranes have been fabricated via the sequential conjugation of the zwitterionic random copolymer [poly(1-(1-(1-adamantylcarbonyloxy)methyl)-3-vinylimidazolium bromide-co-1-(3-sulfopropyl)-3-vinylimidazolium-co-vinylamine)] (P(ADVI-co-SBVI-co-VA), abbreviated as PASV copolymer) and linear cyclodextrin polymer (LPCD) on polydopamine-preactivated PES supports. The self-healing behaviors rely on the judiciously designed "button-and-buttonhole" supramolecular network. Specifically, β-cyclodextrins in LPCD and adamantines in PASV act as "buttonholes" and "buttons", respectively. Under physical and chemical damages, the β-cyclodextrin "buttonhole" may sacrificially detach from the adamantine "button" of PASV but then recap another adamantine to restore the protective function. The antifouling and self-healing traits of as-functionalized PES-g-PASV-LPCD membranes were demonstrated by the superior antiprotein behaviors and improved antimicrobial performances on both nonaged and aged samples. In the PRO process, the modified membranes were effective in mitigating organic fouling and exhibited higher power density (79% of the initial value) than the nonmodified ones (47% of the initial value) in municipal wastewater testing. The strategy for engineering inherently healable and antifouling membranes paves a new pathway for the development of sustainable membranes for osmotic power production.
Collapse
Affiliation(s)
- Jia Le Li
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science , Wuhan University , Wuhan , Hubei 430072 , P. R. China
- Wuhan University Shenzhen Research Institute , Shenzhen , Guangdong 518057 , P. R. China
| | - Chun Ping Wang
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science , Wuhan University , Wuhan , Hubei 430072 , P. R. China
| | - Zheng Xiang
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science , Wuhan University , Wuhan , Hubei 430072 , P. R. China
- Wuhan University Shenzhen Research Institute , Shenzhen , Guangdong 518057 , P. R. China
| | - Yujie Zhao
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science , Wuhan University , Wuhan , Hubei 430072 , P. R. China
| | - Yu Zhang
- Department of Chemical & Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4, Kent Ridge , 117585 , Singapore
| | - Xue Li
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science , Wuhan University , Wuhan , Hubei 430072 , P. R. China
- Wuhan University Shenzhen Research Institute , Shenzhen , Guangdong 518057 , P. R. China
| | - Tao Cai
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science , Wuhan University , Wuhan , Hubei 430072 , P. R. China
- Wuhan University Shenzhen Research Institute , Shenzhen , Guangdong 518057 , P. R. China
| |
Collapse
|
6
|
Huang Y, Zhang XR, Ye S, Li JL, Li X, Cai T. Robust hollow nanocomposites with ruthenium-bipyridine complexes for heterogeneous catalysis of logic-controlled RAFT polymerization. NANOSCALE 2019; 11:13502-13510. [PMID: 31289798 DOI: 10.1039/c9nr04664j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Photoinduced electron/energy transfer-reversible addition-fragmentation chain transfer (PET-RAFT) polymerization has become a powerful and eco-friendly toolkit to create well-defined macromolecular buildups while exhibiting composition, sequence and spatiotemporal control. Although PET-RAFT polymerization is generally much more convenient than living ionic polymerization, it is still a great challenge to regulate the polymerization upon multiple external stimuli and to simplify the procedures of post-polymerization purification. In this contribution, hHPGE-PFPPNRu nanocomposites were engineered as catalyst supports to firmly accommodate ruthenium-bipyridine complexes for heterogeneous catalysis of PET-RAFT polymerization. The manipulation of reaction temperature modulated the performance of the nanocatalysts, with a pronounced acceleration of the polymerization kinetics being identified at a temperature above the lower critical solution temperature (LCST) of poly(N-isopropylacrylamide) (PNIPAM) brushes compared to that below it. Consequently, the control of RAFT polymerization can be achieved upon the dual-stimuli of light and heat. Moreover, these nanocatalysts conferred radical polymerizations with myriad attractive features such as the adaptability of diverse monomer formulations and reaction media, exquisite control over the molecular variables, oxygen tolerance, and catalyst doses in the ppm range. Owing to the robust mechanical nature of nanocomposites, the separation and reuse of the nanocatalysts were readily realized by rapid centrifugation, and they showed inappreciable catalyst leakage along with consistent catalytic performance even after multiple polymerization runs.
Collapse
Affiliation(s)
- Ya Huang
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China. and Wuhan University Shenzhen Research Institute, Shenzhen, Guangdong 518057, P. R. China
| | - Xi Rong Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China. and Wuhan University Shenzhen Research Institute, Shenzhen, Guangdong 518057, P. R. China
| | - Sunjie Ye
- School of Physics and Astronomy, University of Leeds, LS2 9JT, Leeds, UK
| | - Jia Le Li
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China. and Wuhan University Shenzhen Research Institute, Shenzhen, Guangdong 518057, P. R. China
| | - Xue Li
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China. and Wuhan University Shenzhen Research Institute, Shenzhen, Guangdong 518057, P. R. China
| | - Tao Cai
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China. and Wuhan University Shenzhen Research Institute, Shenzhen, Guangdong 518057, P. R. China
| |
Collapse
|
7
|
Shifrina ZB, Matveeva VG, Bronstein LM. Role of Polymer Structures in Catalysis by Transition Metal and Metal Oxide Nanoparticle Composites. Chem Rev 2019; 120:1350-1396. [DOI: 10.1021/acs.chemrev.9b00137] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Zinaida B. Shifrina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St, Moscow, 119991 Russia
| | - Valentina G. Matveeva
- Tver State Technical University, Department of Biotechnology and Chemistry, 22 A. Nikitina St, 170026 Tver, Russia
| | - Lyudmila M. Bronstein
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St, Moscow, 119991 Russia
- Indiana University, Department of Chemistry, Bloomington, 800 East Kirkwood Avenue, Indiana 47405, United States
- King Abdulaziz University, Faculty of Science, Department of Physics, P.O. Box 80303, Jeddah 21589, Saudi Arabia
| |
Collapse
|
8
|
Sharma V, Sundaramurthy A. Reusable Hollow Polymer Microreactors Incorporated with Anisotropic Nanoparticles for Catalysis Application. ACS OMEGA 2019; 4:628-636. [PMID: 31459352 PMCID: PMC6647938 DOI: 10.1021/acsomega.8b02820] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 12/28/2018] [Indexed: 05/13/2023]
Abstract
We report a methodology to encapsulate gold nanorods (AuNRs) and gold bipyramids (AuBPs) into polyelectrolyte capsules for catalytic application. Microreactors (capsules with encapsulated NRs or BPs) were fabricated by sequential deposition of poly(allylamine hydrochloride) and dextran sulfate on modified sacrificial template, followed by core dissolution. AuNRs and AuBPs of size 25-30 nm were successfully encapsulated in the fabricated polyelectrolyte capsules and were stable and distributed uniformly in the interior. Fabricated microreactors were investigated as catalysts for the reduction of p-nitrophenol to p-aminophenol in the presence of sodium borohydride in aqueous phase. Reaction parameters such as order, conversion, and rate constants were estimated for microreactors and compared to free anisotropic nanoparticles in suspension. The reaction rate was higher for NRs in both free and capsule forms compared to BPs. Microreactors demonstrated excellent catalytic activity even after three times of use. Such capsules have high potential for use as microreactors in applications such as catalysis, drug delivery, imaging, and cancer chemo-photothermal therapy.
Collapse
Affiliation(s)
- Varsha Sharma
- SRM
Research Institute, Department of Biomedical Engineering, and Department of
Physics and Nanotechnology, SRM Institute
of Science and Technology, Kattankulathur, Kancheepuram, Tamil Nadu 603203, India
| | - Anandhakumar Sundaramurthy
- SRM
Research Institute, Department of Biomedical Engineering, and Department of
Physics and Nanotechnology, SRM Institute
of Science and Technology, Kattankulathur, Kancheepuram, Tamil Nadu 603203, India
| |
Collapse
|
9
|
Tian J, Huang B, Zhang W. Precise Self-Assembly and Controlled Catalysis of Thermoresponsive Core-Satellite Multicomponent Hybrid Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:266-275. [PMID: 30525653 DOI: 10.1021/acs.langmuir.8b03345] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The construction of multicomponent hybrid nanomaterials with well-controlled architecture, especially bearing an ordered homogeneity and distribution of the subunits with tunable functions, is a key challenge in chemistry and material science. Herein, we reported a versatile and novel strategy to fabricate core-satellite multicomponent nanostructures with tunable interparticle distances and catalysis properties by the combination of surface-initiated reversible addition-fragmentation chain transfer (SI-RAFT) polymerization and self-assembly. The arrangement and interparticle distance of gold satellites could be precisely tuned by the SI-RAFT polymerization process and the feeding ratio of gold nanoparticles (AuNPs) and the core nanoparticle. It is worth to note that multilayered core-satellite nanostructures have been fabricated by a high-feeding ratio of AuNPs and magnetite NP (MNP)@SiO2-PNIPAm. Notably, the core-satellite MNP@SiO2-PNIPAm-Au nanoparticles exhibited excellent thermoresponsive behaviors with the change of temperature. Furthermore, the catalytic efficiency of MNP@SiO2-PNIPAm-Au nanoparticles via the reduction of 4-nitrophenol to 4-aminophenol can be well modulated by the nanoparticle size, temperature, and polymer feed ratio. This strategy for precise construction of core-satellite nanostructures would open a new pathway to construct multicomponent functional nanostructures.
Collapse
Affiliation(s)
- Jia Tian
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , People's Republic of China
| | - Baoxuan Huang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , People's Republic of China
| | - Weian Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , People's Republic of China
| |
Collapse
|
10
|
Siirilä J, Häkkinen S, Tenhu H. The emulsion polymerization induced self-assembly of a thermoresponsive polymer poly(N-vinylcaprolactam). Polym Chem 2019. [DOI: 10.1039/c8py01421c] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A thermoresponsive polymer, poly(N-vinylcaprolactam) (PNVCL), was synthesized in an emulsion above its thermal transition temperature to produce particles via polymerization induced self-assembly (PISA).
Collapse
|
11
|
Li X, Li JL, Huang WG, Zhang XZ, Zhang B, Cai T. Metalloporphyrin-bound Janus nanocomposites with dual stimuli responsiveness for nanocatalysis in living radical polymerization. NANOSCALE 2018; 10:19254-19261. [PMID: 30141816 DOI: 10.1039/c8nr05476b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The capability to spatiotemporally regulate polymerization kinetics in response to dual external stimuli of light and magnetism offers exciting pathways to precisely manipulate polymer composition and sequence. Herein, we report a strategy that adopts snowman-shaped Fe3O4@aSiO2-click-ZnPTPP Janus nanocomposites with a high magnetization value (12.9 emu g-1) and stably confined but accessible catalytic metalloporphyrin moieties as the nanocatalysts for photo-induced electron transfer reversible addition-fragmentation chain transfer (PET-RAFT) polymerization. This method enables the synthesis of diverse polymeric structures from a large range of monomers using ultralow concentrations of nanocatalysts (less than 10 ppm) with simple modulation of light and magnetism. In addition, the nanocatalysts are found to be oxygen-tolerant, and they exhibit non-agglomeration during polymerization. Finally, repeated regeneration of the used nanocatalysts by magnetic extraction or facile centrifugation effectively reduces or even eliminates the contamination and/or decomposition on the final polymer products.
Collapse
Affiliation(s)
- Xue Li
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China.
| | | | | | | | | | | |
Collapse
|
12
|
Huang Y, Li X, Le Li J, Zhang B, Cai T. An Environmentally Benign and pH-Sensitive Photocatalyst with Surface-Bound Metalloporphyrin for Heterogeneous Catalysis of Controlled Radical Polymerization. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01735] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Ya Huang
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Xue Li
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Jia Le Li
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Bin Zhang
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Tao Cai
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China
| |
Collapse
|
13
|
Xu Y, Wang T, He Z, Zhou M, Yu W, Shi B, Huang K. Two-step tandem synthetic strategy for hyper-cross-linking hollow microporous organic nanospheres. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.07.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
14
|
Fabricating highly catalytically active block copolymer/metal nanoparticle microstructures at the liquid/liquid interface. J Colloid Interface Sci 2018; 522:272-282. [DOI: 10.1016/j.jcis.2018.03.071] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/21/2018] [Accepted: 03/21/2018] [Indexed: 12/15/2022]
|
15
|
Abstract
Hollow polymer nanocapsules (HPNs) have gained tremendous interest in recent years due to their numerous desirable properties compared to their solid counterparts.
Collapse
Affiliation(s)
- Kyle C. Bentz
- Department of Chemistry
- University of Florida
- Gainesville
- USA
| | | |
Collapse
|
16
|
Xu Y, Wang T, He Z, Zhou M, Yu W, Shi B, Huang K. Preparation of multifunctional hollow microporous organic nanospheres via a one-pot hyper-cross-linking mediated self-assembly strategy. Polym Chem 2018. [DOI: 10.1039/c8py00694f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Multifunctional hollow microporous organic nanospheres (HMONs) were successfully synthesized via a one-pot hyper-cross-linking mediated self-assembly strategy.
Collapse
Affiliation(s)
- Yang Xu
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Tianqi Wang
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Zidong He
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Minghong Zhou
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Wei Yu
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Buyin Shi
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| | - Kun Huang
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- P. R. China
| |
Collapse
|