1
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Mu Y, Duan W, Dai Y, Sullivan PA, Deravi LF, Wang Y, Lee D. Colloidal synthesis of metallodielectric Janus matchsticks. Chem Commun (Camb) 2024; 60:5534-5537. [PMID: 38695749 DOI: 10.1039/d4cc00488d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
We present a gram-scale synthesis of metallodielectric Janus matchsticks, which feature a gold-coated silica sphere and a silica rod. SiO2 Janus matchsticks are synthesized in one batch by growing amine-functionalized SiO2 spheres at the end of SiO2 rods. Gold deposition on the spheres produces Au-SiO2 Janus matchsticks with an aspect ratio controlled by the rod length. The metallodielectric Janus matchsticks, produced by scalable colloidal synthesis, hold great potential as functional colloidal materials.
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Affiliation(s)
- Yijiang Mu
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA.
| | - Wendi Duan
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Yuxuan Dai
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA.
| | - Patrick A Sullivan
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115, USA
| | - Leila F Deravi
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115, USA
| | - Yufeng Wang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Daeyeon Lee
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA.
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2
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Wang F, Wang W, Su X. Adsorption Behavior and Mechanism of Palladium on Diethylaminoethyl-Modified Polyglycidyl Methacrylate Macroporous Spheres. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:8035-8045. [PMID: 38570346 DOI: 10.1021/acs.langmuir.3c03989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
The recovery of precious metals, such as palladium (Pd), from wastewater, is an economically important field. The present study reports the application of polyglycidyl methacrylate (PGMA) macroporous spheres with diethylaminoethyl (DEAE) functional groups (PGMA-DEAE) for the adsorption of palladium ions [Pd(II)] from simulated wastewater solutions. The effects of pH, adsorption duration, and initial concentration of Pd(II) on the adsorption amount were evaluated systematically. The results revealed that within the experimental pH range, the adsorption efficiency of Pd(II) increased with increasing pH. In particular, between pH 4 and 6, the Pd(II) adsorption efficiencies were approximately 100%. At 298 K and pH ∼ 4, the adsorption capacity of PGMA-DEAE for Pd(II) was 1.22 mmol/g. The adsorption rates of PGMA-DEAE for Pd(II) were high, and the adsorption equilibrium was reached within 10 min. Ca(II), Mg(II), Co(II), Cu(II), Ni(II), and Fe(II) were selected as representative competitive adsorption metal ions. PGMA-DEAE had good separation selectivity for Pd(II) at pH 1-6 (all RPd/Me > 30), especially at pH ∼ 4 (all RPd/Me > 100). The SEM, TEM, EDS, TG, XRD, and XPS results indicated that in a high-acidity environment (CHCl ≥ 1 mol/L), Pd(II) was adsorbed on PGMA-DEAE through electrostatic attraction, while in a low-acidity environment (pH 1-6), Pd(II) was adsorbed on PGMA-DEAE through coordinated bonding between the Pd(II) ions and the N. PGMA-DEAE exhibited excellent stability and regeneration performance for five regeneration cycles.
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Affiliation(s)
- Fuchun Wang
- School of Materials and Energy Engineering, Guizhou Institute of Technology, Guiyang 550005, China
- Key Laboratory of Light Metal Materials Processing Technology of Guizhou Provinces, Guiyang 550003, China
| | - Wankun Wang
- School of Materials and Energy Engineering, Guizhou Institute of Technology, Guiyang 550005, China
- Key Laboratory of Light Metal Materials Processing Technology of Guizhou Provinces, Guiyang 550003, China
| | - Xiang Su
- School of Materials and Energy Engineering, Guizhou Institute of Technology, Guiyang 550005, China
- Key Laboratory of Light Metal Materials Processing Technology of Guizhou Provinces, Guiyang 550003, China
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3
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Liu B, Lv DM, Wang YL, Li WY, Sun YW, Li ZW. Surface Engineering and Programmed Self-Assembly of Silica Nanoparticles with Controllable Polystyrene/Poly(4-vinybenzyl azide) Patches. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:6363-6374. [PMID: 38470241 DOI: 10.1021/acs.langmuir.3c03910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
The programmed self-assembly of patchy nanoparticles (NPs) through a bottom-up approach is an efficient strategy for producing highly organized materials with a predetermined architecture. Herein, we report the preparation of di- and trivalent silica NPs with polystyrene (PS)/poly(4-vinylbenzyl azide) (PVBA) patches and assemble them in a THF mixture by lowering the solvent quality. Silica-PS/PVBA colloidal hybrid clusters were synthesized through the seeded growth emulsion copolymerization of styrene and 4-vinylbenzyl azide (VBA) in varying ratios. Subsequently, macromolecules on silica NPs originating from the copolymerization of growing PS or PVBA chains with the surface-grafted MMS compatibilizer are engineered by fine-tuning of polymer compositions or adjustment of solvent qualities. Moreover, multistage silica regrowth of tripod and tetrapod allowed a fine control of the patch-to-particle size ratio ranging from 0.69 to 1.54. Intriguingly, patchy silica NPs (1-, 2-, 3-PSNs) rather than hybrid clusters are successfully used as templates for multistep regrowth experiments, leading to the formation of silica NPs with a new morphology and size controllable PVBA/PS patches. Last but not least, combined with mesoscale dynamics simulations, the self-assembly kinetics of 2-PSN and 3-PSN into linear colloidal polymers and honeycomb-like lattices are studied. This work paves a new avenue for constructing colloidal polymers with a well-defined sequence and colloidal crystals with a predetermined architecture.
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Affiliation(s)
- Bin Liu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, P. R. China
| | - Dong-Mei Lv
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, P. R. China
| | - Yan-Lan Wang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, P. R. China
| | - Wei-Ya Li
- Nouryon Chemicals (Jiaxing) Co., Ltd., No. 1111, West Yashan Road, Jiaxing, Zhejiang Province 314000, China
| | - Yu-Wei Sun
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, China
| | - Zhan-Wei Li
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, China
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4
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Aminzadeh H, Shahabi Nejad M, Mohammadzadeh I, Sheibani H. Assembly of CuO nanorods onto poly(glycidylmethacrylate)@polyaniline core–shell microspheres: Photocatalytic degradation of paracetamol. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6423] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hossein Aminzadeh
- Department of Chemistry Shahid Bahonar University of Kerman Kerman Iran
| | | | - Iman Mohammadzadeh
- Oral and Dental Disease Research Center Kerman University of Medical Sciences Kerman Iran
| | - Hassan Sheibani
- Department of Chemistry Shahid Bahonar University of Kerman Kerman Iran
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5
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Shen T, Zhong L, Liu X, Zhang J, Zhang D, He K, Yuan C, Xu Y, Dai L. Decorating Au nanoparticles onto optimized P(
t
BA‐
co
‐DMAEMA) carriers for ameliorative catalytic capability. J Appl Polym Sci 2020. [DOI: 10.1002/app.48920] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Tong Shen
- Fujian Provincial Key Laboratory of Fire Retardant MaterialsCollege of Materials, Xiamen University Xiamen 361005 People's Republic of China
| | - Lina Zhong
- Research and Development DepartmentKZJ New Materials Group Co., Ltd. Xiamen 361101 People's Republic of China
| | - Xiaohui Liu
- Fujian Provincial Key Laboratory of Fire Retardant MaterialsCollege of Materials, Xiamen University Xiamen 361005 People's Republic of China
| | - Jiatian Zhang
- Fujian Provincial Key Laboratory of Fire Retardant MaterialsCollege of Materials, Xiamen University Xiamen 361005 People's Republic of China
| | - Dandan Zhang
- Fujian Provincial Key Laboratory of Fire Retardant MaterialsCollege of Materials, Xiamen University Xiamen 361005 People's Republic of China
| | - Kaibin He
- Fujian Provincial Key Laboratory of Fire Retardant MaterialsCollege of Materials, Xiamen University Xiamen 361005 People's Republic of China
| | - Conghui Yuan
- Fujian Provincial Key Laboratory of Fire Retardant MaterialsCollege of Materials, Xiamen University Xiamen 361005 People's Republic of China
| | - Yiting Xu
- Fujian Provincial Key Laboratory of Fire Retardant MaterialsCollege of Materials, Xiamen University Xiamen 361005 People's Republic of China
| | - Lizong Dai
- Fujian Provincial Key Laboratory of Fire Retardant MaterialsCollege of Materials, Xiamen University Xiamen 361005 People's Republic of China
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6
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Zhao X, Fu Y, Yao C, Xu S, Shen Y, Ding Q, Liu W, Zhang H, Zhou X. From Boron Organic Polymers to
in situ
Ultrafine Nano Pd and Pt: Green Synthesis and Application for High Efficiency Hydrogen Evolution. ChemCatChem 2019. [DOI: 10.1002/cctc.201900281] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Xue Zhao
- College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 P.R. China
| | - Yunfan Fu
- College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 P.R. China
| | - Chen Yao
- College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 P.R. China
| | - Shuran Xu
- College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 P.R. China
| | - Yu Shen
- College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 P.R. China
| | - Qiong Ding
- College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 P.R. China
- National Demonstration Center for Experimental ChemistryWuhan University Wuhan 430072 P.R. China
| | - Wenjing Liu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Nanjing Tech University Nanjing 211800 P.R. China
| | - Haibo Zhang
- College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 P.R. China
- National Demonstration Center for Experimental ChemistryWuhan University Wuhan 430072 P.R. China
- Engineering Research Center of Organosilicon Compounds & Materials Ministry of EducationWuhan University Wuhan 430072 P.R. China
| | - Xiaohai Zhou
- College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 P.R. China
- Engineering Research Center of Organosilicon Compounds & Materials Ministry of EducationWuhan University Wuhan 430072 P.R. China
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7
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Luo Z, Xu Y, Ye E, Li Z, Wu YL. Recent Progress in Macromolecule-Anchored Hybrid Gold Nanomaterials for Biomedical Applications. Macromol Rapid Commun 2019; 40:e1800029. [PMID: 29869424 DOI: 10.1002/marc.201800029] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 04/12/2018] [Indexed: 12/16/2022]
Abstract
Gold nanoparticles (AuNPs), with elegant thermal, optical, or chemical properties due to quantum size effects, may serve as unique species for therapeutic or diagnostic applications. It is worth mentioning that their small size also results in high surface activity, leading to significantly impaired stability, which greatly hinders their biomedical utilizations. To overcome this problem, various types of macromolecular materials are utilized to anchor AuNPs so as to achieve advanced synergistic effect by dispersing, protecting, and stabilizing the AuNPs in polymeric-Au hybrid self-assemblies. In this review, the most recent development of polymer-AuNP hybrid systems, including AuNPs@polymeric nanoparticles, AuNPs@polymeric micelle, AuNPs@polymeric film, and AuNPs@polymeric hydrogel are discussed with respect to their different synthetic strategies. These sophisticated materials with diverse functions, oriented toward biomedical applications, are further summarized into several active domains in the areas of drug delivery, gene delivery, photothermal therapy, antibacterials, bioimaging, etc. Finally, the possible approaches for future design of multifunctional polymer-AuNP hybrids by combining hybrid chemistry with biological interface science are proposed.
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Affiliation(s)
- Zheng Luo
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
| | - Yang Xu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
| | - Enyi Ye
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore
| | - Zibiao Li
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore
| | - Yun-Long Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
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8
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Oh JS, Kim MP, Kim JH, Son H, Kim KH, Kim SH, Yoo JB, Lee Y, Yi GR, Nam JD. Diffusion-assisted post-crosslinking of polymer microspheres containing epoxy functional groups. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.11.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Shape‐Shifting Patchy Particles. Angew Chem Int Ed Engl 2017; 56:5507-5511. [DOI: 10.1002/anie.201701456] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 03/09/2017] [Indexed: 11/07/2022]
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10
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Affiliation(s)
- Xiaolong Zheng
- Molecular Design Institute Department of Chemistry New York University New York NY 10003 USA
| | - Mingzhu Liu
- Molecular Design Institute Department of Chemistry New York University New York NY 10003 USA
| | - Mingxin He
- Tandon School of Engineering Department of Chemical & Biomolecular Engineering New York University Brooklyn NY 11201 USA
| | - David J. Pine
- Department of Physics Center for Soft Matter Research New York University New York NY 10003 USA
- Tandon School of Engineering Department of Chemical & Biomolecular Engineering New York University Brooklyn NY 11201 USA
| | - Marcus Weck
- Molecular Design Institute Department of Chemistry New York University New York NY 10003 USA
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11
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Silver nanoparticles well-dispersed in amine-functionalized, one-pot made vesicles as an effective antibacterial agent. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 60:92-99. [DOI: 10.1016/j.msec.2015.11.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 10/15/2015] [Accepted: 11/05/2015] [Indexed: 01/11/2023]
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12
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Kang Z, Liu Y. Catalytic Applications of Carbon Dots. CARBON NANOPARTICLES AND NANOSTRUCTURES 2016. [DOI: 10.1007/978-3-319-28782-9_8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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13
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Zhang Z, Ma PX. From Nanofibrous Hollow Microspheres to Nanofibrous Hollow Discs and Nanofibrous Shells. Macromol Rapid Commun 2015; 36:1735-41. [PMID: 26247175 PMCID: PMC4678097 DOI: 10.1002/marc.201500342] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Revised: 07/14/2015] [Indexed: 11/10/2022]
Abstract
Nano- and microsized structures are of central importance to advanced materials and nanotechnologies, which have tremendously impacted both biomedical and physical sciences. Herein, novel emulsification and thermally induced phase separation (TIPS) techniques to fabricate linear polymers into nanofibrous hollow objects are reported for the first time. Through manipulating the emulsification conditions, the evolution of the emulsion structure can be controlled and nanofibrous hollow microspheres with a controllable opening size and nano-fibrous shells can be fabricated. Through adjusting the rheological properties of the emulsions, nanofibrous hollow discs are also created. A new mechanistic hypotheses of the nanofibrous hollow object formation is proposed: the nano- and microscaled structures are independently determined by TIPS and the emulsification process, respectively. Guided by this theory, the nanofiber formation conditions for two further additional polymers (polyacrylonitrile and Nylon) under TIPS are identified, and solid/nanofibrous non-hollow/hollow microspheres are created from these two additional polymers under TIPS and emulsification for the first time. Therefore, the developed strategy is applicable to various polymer systems, and can broadly impact nano- and microfabrication technologies.
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Affiliation(s)
- Zhanpeng Zhang
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109-1078
| | - Peter X. Ma
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109-1078
- Department of Biologic and Materials Sciences, University of Michigan, Ann Arbor, MI, 48109-1078
- Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, MI, 48109-1078
- Department of Materials Science and Engineering University of Michigan, Ann Arbor, MI, 48109-1078
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14
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Zhang W, Sun Y, Zhang L. In Situ Synthesis of Monodisperse Silver Nanoparticles on Sulfhydryl-Functionalized Poly(glycidyl methacrylate) Microspheres for Catalytic Reduction of 4-Nitrophenol. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b01010] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Wenchao Zhang
- Department of Biochemical
Engineering and Key Laboratory of Systems Bioengineering of the Ministry
of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Yan Sun
- Department of Biochemical
Engineering and Key Laboratory of Systems Bioengineering of the Ministry
of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Lin Zhang
- Department of Biochemical
Engineering and Key Laboratory of Systems Bioengineering of the Ministry
of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
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15
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Fabrication of chitin microspheres and their multipurpose application as catalyst support and adsorbent. Carbohydr Polym 2015; 120:53-9. [DOI: 10.1016/j.carbpol.2014.12.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 12/06/2014] [Accepted: 12/09/2014] [Indexed: 11/22/2022]
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16
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Li J, Huang Z, Yang M, Tan L, Zhang X, Gao H, Tang Y, Ma Q, Wang G. Oriented immobilization of Au nanoparticles on C@P4VP core–shell microspheres and their catalytic performance. NEW J CHEM 2015. [DOI: 10.1039/c4nj02112f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient inorganic–organic hybrid catalyst C@P4VP–Au is synthesized by the seeded emulsion polymerization and immobilization process.
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Affiliation(s)
- Jie Li
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Zeting Huang
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Mu Yang
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Li Tan
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Xiaowei Zhang
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Hongyi Gao
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Yinhai Tang
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Qianqian Ma
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Ge Wang
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
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17
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Dsouza R, Valiyaveettil S. Aminoparticles – synthesis, characterisation and application in water purification. RSC Adv 2015. [DOI: 10.1039/c5ra01675d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A convenient synthesis of processable aminoparticles is demonstrated with potential applications in water purification.
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Affiliation(s)
- Roshan Dsouza
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
| | - Suresh Valiyaveettil
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
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18
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Kanahara M, Shimomura M, Yabu H. Fabrication of gold nanoparticle-polymer composite particles with raspberry, core-shell and amorphous morphologies at room temperature via electrostatic interactions and diffusion. SOFT MATTER 2014; 10:275-280. [PMID: 24651763 DOI: 10.1039/c3sm52077c] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Composite particles with varying morphologies composed of gold nanoparticles (Au NPs) and polymers were fabricated based on a combination of electrostatic interactions between the polymer particles and Au NPs and diffusion processes. The positively charged polymer particles were prepared from amino-terminated polystyrene (PS-NH2) and amino-terminated 1,2-polybutadiene (PB-NH2). Adsorption of citrate-stabilized Au NPs resulted in three different distribution states of Au NPs in the polymer particles, depending on the glass transition temperature (Tg) and molecular weight of the polymer. The adsorption of Au NPs onto PS-NH2 particles produced raspberry-like composite particle morphologies, while the NPs instead diffused into the PB-NH2 particles, since the Tg of PB-NH2 is below room temperature. The diffusion of Au NPs could be controlled by varying the molecular weight of the PB-NH2 and the diameter of the NPs, and both core-shell and amorphous distributions were successfully achieved.
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Affiliation(s)
- Masaaki Kanahara
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan.
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19
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Liu R, Liu J, Kong W, Huang H, Han X, Zhang X, Liu Y, Kang Z. Adsorption dominant catalytic activity of a carbon dots stabilized gold nanoparticles system. Dalton Trans 2014; 43:10920-9. [DOI: 10.1039/c4dt00630e] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Deng J, Cai Y. Botryoid-Shaped Reactive Nanoparticles through Spontaneous Structural Reorganization of Terpolymer Micelles. Macromol Rapid Commun 2013; 34:1459-63. [DOI: 10.1002/marc.201300474] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 07/15/2013] [Indexed: 12/18/2022]
Affiliation(s)
- Junjie Deng
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Yuanli Cai
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
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