1
|
Wu H, Zhu X, Shi X, Chai Y, Zhou Y, Yuan R. High-Efficient Electrochemiluminescence of DNA-Au Ag Nanoclusters with Au NPs@Ti 3C 2 as a Novel Coreaction Accelerator for Ultrasensitive Biosensing. Anal Chem 2024; 96:13727-13733. [PMID: 39109530 DOI: 10.1021/acs.analchem.4c02878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/21/2024]
Abstract
In this work, an ultrasensitive electrochemiluminescence (ECL) biosensor was constructed based on DNA-stabilized Au Ag nanoclusters (DNA-Au Ag NCs) as the efficient luminophore and Au NPs@Ti3C2 as a new coreaction accelerator for determining microRNA-221 (miRNA-221) related to liver cancer. Impressively, DNA-Au Ag NCs were stabilized by the high affinity of the periodic 3C sequence, exhibiting an excellent ECL efficiency of 27% compared with classical BSA-Au Ag NCs (16%). Moreover, the Au NPs@Ti3C2 nanocomposites, as a new coreaction accelerator, were first introduced to accelerate the production of abundant sulfate free radicals (SO4•-) for promoting the ECL efficiency of DNA-Au Ag NCs in the DNA-Au Ag NCs/Au NPs@Ti3C2/S2O82- ternary system due to the energy band of Au NPs@Ti3C2 being well-matched with the frontier orbital of S2O82-. Furthermore, the trace target (miRNA-221) could drive the rolling circle amplification to generate an amount of output DNA with periodic 3C and 10A sequences. Through covalent bonds on the surface of poly A and Au NPs, the distance between the luminophor and the coreaction accelerator could be narrowed to further enhance the detection sensitivity. As a result, the constructed sensor has been applied for the ultrasensitive detection of miRNA-221 with a low detection limit of 50 aM and successfully monitored miRNA-221 in MHCC-97L and HeLa cell lysates. This strategy could be utilized for guiding the synthesis of light-emitting DNA-metal NCs, which has great potential in the construction of ultrasensitive biosensors for the early diagnosis of diseases.
Collapse
Affiliation(s)
- Huiling Wu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Xiaochun Zhu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Xiaoyu Shi
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Yaqin Chai
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Ying Zhou
- College of Food Science, Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Southwest University, Chongqing 400715, P. R. China
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| |
Collapse
|
2
|
Atom hybridization of metallic elements: Emergence of subnano metallurgy for the post-nanotechnology. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
3
|
Cesari C, Berti B, Funaioli T, Femoni C, Iapalucci MC, Pontiroli D, Magnani G, Riccò M, Bortoluzzi M, Vivaldi FM, Zacchini S. Atomically Precise Platinum Carbonyl Nanoclusters: Synthesis, Total Structure, and Electrochemical Investigation of [Pt 27(CO) 31] 4- Displaying a Defective Structure. Inorg Chem 2022; 61:12534-12544. [PMID: 35920640 PMCID: PMC9387524 DOI: 10.1021/acs.inorgchem.2c00965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Indexed: 11/30/2022]
Abstract
The molecular Pt nanocluster [Pt27(CO)31]4- (14-) was obtained by thermal decomposition of [Pt15(CO)30]2- in tetrahydrofuran under a H2 atmosphere. The reaction of 14- with increasing amounts of HBF4·Et2O afforded the previously reported [Pt26(CO)32]2- (32-) and [Pt26(CO)32]- (3-). The new nanocluster 14- was characterized by IR and UV-visible spectroscopy, single-crystal X-ray diffraction, direct-current superconducting quantum interference device magnetometry, cyclic voltammetry, IR spectroelectrochemistry (IR SEC), and electrochemical impedance spectroscopy. The cluster displays a cubic-close-packed Pt27 framework generated by the overlapping of four ABCA layers, composed of 3, 7, 11, and 6 atoms, respectively, that encapsulates a fully interstitial Pt4 tetrahedron. One Pt atom is missing within layer 3, and this defect (vacancy) generates local deformations within layers 2 and 3. These local deformations tend to repair the defect (missing atom) and increase the number of Pt-Pt bonding contacts, minimizing the total energy. The cluster 14- is perfectly diamagnetic and displays a rich electrochemical behavior. Indeed, six different oxidation states have been characterized by IR SEC, unraveling the series of 1n- (n = 3-8) isostructural nanoclusters. Computational studies have been carried out to further support the interpretation of the experimental data.
Collapse
Affiliation(s)
- Cristiana Cesari
- Dipartimento
di Chimica Industriale “Toso Montanari”, Università di Bologna, Viale Risorgimento 4, Bologna 40136, Italy
| | - Beatrice Berti
- Dipartimento
di Chimica Industriale “Toso Montanari”, Università di Bologna, Viale Risorgimento 4, Bologna 40136, Italy
| | - Tiziana Funaioli
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via G. Moruzzi 13, Pisa 56124, Italy
| | - Cristina Femoni
- Dipartimento
di Chimica Industriale “Toso Montanari”, Università di Bologna, Viale Risorgimento 4, Bologna 40136, Italy
| | - Maria Carmela Iapalucci
- Dipartimento
di Chimica Industriale “Toso Montanari”, Università di Bologna, Viale Risorgimento 4, Bologna 40136, Italy
| | - Daniele Pontiroli
- Dipartimento
di Scienze Matematiche, Fisiche e Informatiche, and INSTM, Università degli Studi di Parma, Viale delle Scienze 7/a, Parma 43124, Italy
| | - Giacomo Magnani
- Dipartimento
di Scienze Matematiche, Fisiche e Informatiche, and INSTM, Università degli Studi di Parma, Viale delle Scienze 7/a, Parma 43124, Italy
| | - Mauro Riccò
- Dipartimento
di Scienze Matematiche, Fisiche e Informatiche, and INSTM, Università degli Studi di Parma, Viale delle Scienze 7/a, Parma 43124, Italy
| | - Marco Bortoluzzi
- Dipartimento
di Scienze Molecolari e Nanosistemi, Ca’Foscari
University of Venice, Via Torino 155, Mestre (Ve) 30175, Italy
| | - Federico Maria Vivaldi
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via G. Moruzzi 13, Pisa 56124, Italy
| | - Stefano Zacchini
- Dipartimento
di Chimica Industriale “Toso Montanari”, Università di Bologna, Viale Risorgimento 4, Bologna 40136, Italy
| |
Collapse
|
4
|
Fernandes T, Daniel-da-Silva AL, Trindade T. Metal-dendrimer hybrid nanomaterials for sensing applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214483] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
5
|
Ranjan A, Varma A, Kumari S, Joshi RK. Cu/Mn catalyzed C-N cross coupling reaction of aryl chlorides and amines promoted by PAMAM dendrimer. Synlett 2022. [DOI: 10.1055/a-1822-2832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A bimetallic catalytic combinations of Mn(OAc)2 and Cu(OAc)2 was found to be significantly effective for the Buchwald type C-N cross coupling of arylchlorides and amines. Reaction is highly influenced in the presence of a promoter Poly(amidoamine) (PAMAM) dendrimer which also possesses the advantages of being stabile, non-toxic, biocompatible, non-immunogenic and acts as soluble support for transition metal complex. Although, Mn is low cost and environmentally benign, but it is not fully exploited due to its low intrinsic catalytic activity. Here, the catalytic potential of Mn was drastically increased in the presence of another metal salt (Cu(OAc)2). In bimetallic composition, Mn significantly influences the activity, selectivity and plays a vital role in catalysis. Herein, we have developed a novel, green and economical procedure for the Buchwald type C-N cross coupling of arylchlorides and amines. Presented coupling method works under aerobic and solvent-free conditions and produces an excellent yield of value-added N-arylated or alkylated products.
Collapse
Affiliation(s)
- Archana Ranjan
- Amity Institute of Microbial Technology, Amity University Amity Institute of Applied Science, Noida, India
| | - Ajit Varma
- Amity Institute of Microbial Technology, Amity University Amity Institute of Applied Science, Noida, India
| | - Sangeeta Kumari
- Chemistry, Malaviya National Institute of Technology, Jaipur, India
| | - Raj Kumar Joshi
- Chemistry, Malaviya National Institute of Technology Jaipur, Jaipur, India
| |
Collapse
|
6
|
Chang T, Yan X, Li Y, Hao Y, Fu X, Liu X, Panchal B, Qin S, Zhu Z. Quaternary ammonium immobilized PAMAM as efficient catalysts for conversion of carbon dioxide. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.101913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
7
|
Guo D, Zhou X, Muhammad N, Huang S, Zhu Y. An overview of poly (amide-amine) dendrimers functionalized chromatographic separation materials. J Chromatogr A 2022; 1669:462960. [PMID: 35305456 DOI: 10.1016/j.chroma.2022.462960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/05/2022] [Accepted: 03/09/2022] [Indexed: 01/04/2023]
Abstract
Chromatography is one of the most important separation techniques in analytical chemistry. In which, the separation materials are the core for good separation results. Poly (amide-amine) dendrimers with regular three-dimensional structure, abundant terminal groups, controllable molecule chains, and unique cavities appear to have a positive impact on chromatographic separation materials. In the past decades, poly (amide-amine) grafted adsorbents and stationary phases have presented high grafting efficiency, controllable surface structure, good dispersion, and wide practical applications. In this review, the prepared poly (amide-amine) functionalized separation materials and their applications are systematically summarized. Functions, significance, structure-actvity relationships and benefits of poly (amide-amine) dendrimers in the proposed separation materials are discussed in detail. And we hope to provide a useful reference for the future development of chromatographic separation materials and inspire new discoveries in the study of poly (amide-amine) functionalized materials.
Collapse
Affiliation(s)
- Dandan Guo
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo 315211, China; Qian Xuesen Collaborative Research Center for Astrochemistry and Space Life Sciences, Ningbo University, Ningbo 315211, China; Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Xiaoqian Zhou
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo 315211, China
| | - Nadeem Muhammad
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China; Department of Environmental Engineering, Wuchang University of Technology, Wuhan 430223, China
| | - Shaohua Huang
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo 315211, China; Qian Xuesen Collaborative Research Center for Astrochemistry and Space Life Sciences, Ningbo University, Ningbo 315211, China.
| | - Yan Zhu
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China.
| |
Collapse
|
8
|
Karakhanov E, Maximov A, Zolotukhina A. Heterogeneous Dendrimer-Based Catalysts. Polymers (Basel) 2022; 14:981. [PMID: 35267800 PMCID: PMC8912888 DOI: 10.3390/polym14050981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 02/04/2023] Open
Abstract
The present review compiles the advances in the dendritic catalysis within the last two decades, in particular concerning heterogeneous dendrimer-based catalysts and their and application in various processes, such as hydrogenation, oxidation, cross-coupling reactions, etc. There are considered three main approaches to the synthesis of immobilized heterogeneous dendrimer-based catalysts: (1) impregnation/adsorption on silica or carbon carriers; (2) dendrimer covalent grafting to various supports (silica, polystyrene, carbon nanotubes, porous aromatic frameworks, etc.), which may be performed in a divergent (as a gradual dendron growth on the support) or convergent way (as a grafting of whole dendrimer to the support); and (3) dendrimer cross-linking, using transition metal ions (resulting in coordination polymer networks) or bifunctional organic linkers, whose size, polarity, and rigidity define the properties of the resulted material. Additionally, magnetically separable dendritic catalysts, which can be synthesized using the three above-mentioned approaches, are also considered. Dendritic catalysts, synthesized in such ways, can be stored as powders and be easily separated from the reaction medium by filtration/centrifugation as traditional heterogeneous catalysts, maintaining efficiency as for homogeneous dendritic catalysts.
Collapse
Affiliation(s)
- Eduard Karakhanov
- Department of Petroleum Chemistry and Organic Catalysis, Moscow State University, 119991 Moscow, Russia;
| | - Anton Maximov
- Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia;
| | - Anna Zolotukhina
- Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia;
| |
Collapse
|
9
|
Niakan M, Masteri-Farahani M. Pd–Ni bimetallic catalyst supported on dendrimer-functionalized magnetic graphene oxide for efficient catalytic Suzuki-Miyaura coupling reaction. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132655] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
10
|
Chen L, Cheng Z, Luo M, Wang T, Zhang L, Wei J, Wang Y, Li P. Fluorescent noble metal nanoclusters for contaminants analysis in food matrix. Crit Rev Food Sci Nutr 2021:1-19. [PMID: 34658279 DOI: 10.1080/10408398.2021.1990010] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recently, food safety issues caused by contaminants have aroused great public concern. The development of innovative and efficient sensing techniques for contaminants detection in food matrix is in urgent demand. As fluorescent nanomaterials, noble metal nanoclusters have attracted much attention because of their ease of synthesis, enhanced catalytic activity and biocompatibility, and most importantly, excellent photoluminescence property that provides promising analytical applications. This review comprehensively introduced the synthesis method of noble metal nanoclusters, and summarized the application of metal nanoclusters as fluorescent sensing materials in the detection of pollutants, including pesticides, heavy metal, mycotoxin, food additives, and other contaminants in food. The detection mechanism of pesticide residues mostly relies on the inhibition of natural enzymes. For heavy metals, the detection mechanism is mainly related to the interaction between metal ions and nanoclusters or ligands. It is evidenced that metal nanoclusters have great potential application in the field of food safety monitoring. Moreover, challenges and future trends of nanoclusters were discussed. We hope that this review can provide insights and directions for the application of nanoclusters in contaminants detection.
Collapse
Affiliation(s)
- Ling Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Zehua Cheng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Mai Luo
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Ting Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Lei Zhang
- Laboratory Animal Center, Sichuan Academy of Chinese Medicine Sciences, Chengdu, China
| | - Jinchao Wei
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Peng Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| |
Collapse
|
11
|
Devadas B, Periasamy AP, Bouzek K. A review on poly(amidoamine) dendrimer encapsulated nanoparticles synthesis and usage in energy conversion and storage applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214062] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
12
|
Liu X, Tian M, Li C, Tian F. Polyvinylpyrrolidone-stabilized Pt nanoclusters as robust oxidase mimics for selective detection of ascorbic acid. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
13
|
|
14
|
Ramezanpour A, Karami K, Kharaziha M, Silvestru C, Bayat P. Synthesis and characterization of the ternary graphene oxide, MnFe
2
O
4
nanoparticles, and Polyamidoamine dendrons nanocomposite decorated with palladium as a heterogeneous catalyst for nitroaromatics reduction. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Azar Ramezanpour
- Department of Chemistry Isfahan University of Technology Isfahan Iran
| | - Kazem Karami
- Department of Chemistry Isfahan University of Technology Isfahan Iran
| | - Mahshid Kharaziha
- Department of Materials Engineering Isfahan University of Technology Isfahan Iran
| | - Cristian Silvestru
- Supramolecular Organic and Organometallic Chemistry Centre, Department of Chemistry, Faculty of Chemistry and Chemical Engineering Babeş‐Bolyai University Cluj‐Napoca Romania
| | - Parvaneh Bayat
- Department of Chemistry Isfahan University of Technology Isfahan Iran
| |
Collapse
|
15
|
Shan P, Niu P, Zhang H, Zhang C, Lu N, Wang Y, Fan B, Li R. SSZ-13 supported Ir as an efficient catalyst for methylcyclopentane ring-opening reaction. CATAL COMMUN 2021. [DOI: 10.1016/j.catcom.2021.106311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
16
|
Alam AM, Shon YS. Water-Soluble Noble Metal Nanoparticle Catalysts Capped with Small Organic Molecules for Organic Transformations in Water. ACS APPLIED NANO MATERIALS 2021; 4:3294-3318. [PMID: 34095774 PMCID: PMC8171274 DOI: 10.1021/acsanm.1c00335] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
This article recaps a variety of interesting catalytic studies based on solubilized and freely movable noble metal nanoparticle catalysts employed for organic reactions in either pure water or water-organic biphasic systems. Small organic ligand-capped metal nanoparticles are fundamentally attractive materials due to their enormous potential as a well-defined system that can provide spatial control near active catalytic sites. The nanoparticle catalysts are first grouped based on the synthetic method (direct reduction, phase transfer, and redispersion) and then again based on the type of reaction such as alkene hydrogenation, arene hydrogenation, nitroaromatic reduction, carbon-carbon coupling reactions, etc. The impacts of various ligands on the catalytic activity and selectivity of semi-heterogeneous nanoparticles in water are discussed in detail. The catalytic systems using polymers, dendrimers, and ionic liquids as supporting or protecting materials are excluded from the subject of this review.
Collapse
Affiliation(s)
- Al-Mahmnur Alam
- Department of Chemistry and Biochemistry and the Keck Energy and Materials Program (KEMP), California State University, Long Beach, Long Beach, California 90840, United States
| | - Young-Seok Shon
- Department of Chemistry and Biochemistry and the Keck Energy and Materials Program (KEMP), California State University, Long Beach, Long Beach, California 90840, United States
| |
Collapse
|
17
|
Suktanarak P, Tanaka T, Nagata T, Kondo R, Suzuki T, Tuntulani T, Leeladee P, Obora Y. Effect of Water in Fabricating Copper Nanoparticles onto Reduced Graphene Oxide Nanosheets: Application in Catalytic Ullmann-Coupling Reactions. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Pattira Suktanarak
- Research Group on Materials for Clean Energy Production STAR, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- Faculty of Sport and Health Sciences, Thailand National Sports University Lampang Campus, Lampang 52100, Thailand
| | - Tatsuya Tanaka
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
| | - Tatsuki Nagata
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
| | - Ryota Kondo
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
| | - Takeyuki Suzuki
- Comprehensive Analysis Center, The Institute of Scientific and Industrial Research (ISIR), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0057, Japan
| | - Thawatchai Tuntulani
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Pannee Leeladee
- Research Group on Materials for Clean Energy Production STAR, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Yasushi Obora
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
| |
Collapse
|
18
|
Affiliation(s)
- Chuanbo Gao
- Center for Materials Chemistry, Frontier Institute of Science and Technology, and State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710054, China
| | - Fenglei Lyu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Yadong Yin
- Department of Chemistry, University of California, Riverside, California 92521, United States
| |
Collapse
|
19
|
Fu C, Deng C, Zhou F, Yi D, Zhang Y, Wang X, Tang Y, Wang Y. Hierarchically porous graphitic carbon membrane with homogeneously encapsulated metallic nanoparticles as monolith electrodes for high-performance electrocatalysis and sensing. J Colloid Interface Sci 2020; 570:223-231. [DOI: 10.1016/j.jcis.2020.02.106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/21/2020] [Accepted: 02/26/2020] [Indexed: 01/28/2023]
|
20
|
Dzhardimalieva GI, Zharmagambetova AK, Kudaibergenov SE, Uflyand IE. Polymer-Immobilized Clusters and Metal Nanoparticles in Catalysis. KINETICS AND CATALYSIS 2020. [DOI: 10.1134/s0023158420020044] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
21
|
Xiao T, Qin J, Peng C, Guo R, Lu X, Shi X. A Dendrimer-Based Dual Radiodense Element-Containing Nanoplatform for Targeted Enhanced Tumor Computed Tomography Imaging. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3096-3103. [PMID: 32178521 DOI: 10.1021/acs.langmuir.0c00451] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The exploration of original computed tomography (CT) imaging contrast agents with enhanced sensitivity and specificity is currently one of the major challenging tasks for precision medicine. Herein, we develop an innovative nanoprobe of dendrimer-stabilized gold nanoparticles (Au DSNs) linked with folic acid (FA) as a targeting ligand and diatrizoic acid (DTA) for specific enhanced tumor CT imaging. In current work, poly(amidoamine) (PAMAM) dendrimers of generation 5 (G5) with amine termini were adopted to entrap Au NPs through a stepwise complexation/reduction method to achieve a higher Au loading than the conventional one-step complexation/reduction method. The prepared [(Au0)120-G5.NH2] NPs were sequentially functionalized with diatrizoic acid (DTA), a typical CT contrast agent based on iodine(I), FA through a poly(ethylene glycol) (PEG) spacer, and carboxylated PEG monomethyl ether (mPEG-COOH), ended with complete acetylation of the leftover dendrimer amine termini. The generated Au DSNs-DTA-FA (Au core diameter = 5.9 nm) were thoroughly characterized. Our data reveal that the Au DSNs-DTA-FA containing Au and I dual radiodense elements are stable, display enhanced CT imaging performance, much higher than the single-radiodense elemental material solely based on Au or I, and possess a quite good cytocompatibility. With the demonstrated FA-rendered specific targeting, the developed Au DSNs-DTA-FA can be employed as a highly efficient nanoprobe for targeted enhanced CT imaging of cancer cells and a subcutaneous tumor model. Overall, the created Au DSNs-DTA-FA may be a powerful nanoprobe for specific enhanced CT imaging of various kinds of FA receptor-expressing tumors or biosystems.
Collapse
Affiliation(s)
- Tingting Xiao
- Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Jinbao Qin
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, People's Republic of China
| | - Chen Peng
- Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Rui Guo
- Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Xinwu Lu
- Department of Vascular Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, People's Republic of China
| | - Xiangyang Shi
- Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
- CQM-Centro de Quimica da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| |
Collapse
|
22
|
Integrating the Fields of Catalysis: Active Site Engineering in Metal Cluster, Metal Organic Framework and Metal Single Site. Top Catal 2020. [DOI: 10.1007/s11244-020-01248-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
23
|
Redón R, Ramírez-Crescencio F, Gonzalez-Rodriguez R, Coffer J, Simanek EE. Ir(0) and Pt(0) nanoparticle-triazine dendrimer composites. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1738407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- R. Redón
- Instituto de Ciencias Aplicadas y Tecnología, Universidad Nacional Autónoma de México, Mexico City, México
| | - F. Ramírez-Crescencio
- Instituto de Ciencias Aplicadas y Tecnología, Universidad Nacional Autónoma de México, Mexico City, México
| | | | - J. Coffer
- Department of Chemistry, Texas Christian University, Fort Worth, TX, USA
| | - E. E. Simanek
- Department of Chemistry, Texas Christian University, Fort Worth, TX, USA
| |
Collapse
|
24
|
Cui Y, Lai X, Liu K, Liang B, Ma G, Wang L. Ginkgo biloba leaf polysaccharide stabilized palladium nanoparticles with enhanced peroxidase-like property for the colorimetric detection of glucose. RSC Adv 2020; 10:7012-7018. [PMID: 35493859 PMCID: PMC9049734 DOI: 10.1039/d0ra00680g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 02/10/2020] [Indexed: 12/25/2022] Open
Abstract
Sensitive glucose detection based on nanoparticles is good for the prevention of illness in our bodies. However, many nanoparticles lack stability and biocompatibility, which restrict their sensitivity to glucose detection. Herein, stable and biocompatible Ginkgo biloba leaf polysaccharide (GBLP) stabilized palladium nanoparticles (Pd n -GBLP NPs) were prepared through a green method where GBLP was used as a reducing and stabilizing agent. The results of Pd n -GBLP NPs characterized by UV-visible spectroscopy (UV-Vis), Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM) and X-ray photoelectron spectra (XPS) confirmed the successful preparation of Pd n -GBLP NPs. TEM results indicated that the sizes of Pd NPs inside of Pd n -GBLP NPs (n = 41, 68, 91 and 137) were 7.61, 9.62, 11.10 and 13.13 nm, respectively. XPS confirmed the successful reduction of PdCl4 2- into Pd (0). Dynamic light scattering (DLS) results demonstrated the long-term stability of Pd n -GBLP NPs in different buffer solutions. Furthermore, Pd91-GBLP NPs were highly biocompatible after incubation (500 μg mL-1) with HeLa cells for 24 h. More importantly, Pd91-GBLP NPs had peroxidase-like properties and followed a ping-pong mechanism. The catalytic oxidation of substrate 3,3',5,5'-tetramethylbenzidine (TMB) into blue oxidized TMB (oxTMB) by Pd91-GBLP NPs was used to detect the glucose concentration. This colorimetric method had high selectivity, wide linear range from 2.5 to 700 μM and a low detection limit of 1 μM. This method also showed good accuracy for the detection of glucose concentrations in blood. The established method has great potential in biomedical detection in the future.
Collapse
Affiliation(s)
- Yanshuai Cui
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University Qinhuangdao 066004 China
| | - Xiang Lai
- Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University Qinhuangdao 066004 China
| | - Kai Liu
- Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University Qinhuangdao 066004 China
| | - Bo Liang
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University Qinhuangdao 066004 China
| | - Guanglong Ma
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University Hangzhou 310027 China
| | - Longgang Wang
- Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University Qinhuangdao 066004 China
| |
Collapse
|
25
|
Fernandes T, Fateixa S, Nogueira HIS, Daniel-da-Silva AL, Trindade T. Dendrimer-Based Gold Nanostructures for SERS Detection of Pesticides in Water. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901134] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Tiago Fernandes
- Department of Chemistry-CICECO Aveiro Institute of Materials; University of Aveiro; 3810-193 Aveiro Portugal
| | - Sara Fateixa
- Department of Chemistry-CICECO Aveiro Institute of Materials; University of Aveiro; 3810-193 Aveiro Portugal
| | - Helena I. S. Nogueira
- Department of Chemistry-CICECO Aveiro Institute of Materials; University of Aveiro; 3810-193 Aveiro Portugal
| | - Ana L. Daniel-da-Silva
- Department of Chemistry-CICECO Aveiro Institute of Materials; University of Aveiro; 3810-193 Aveiro Portugal
| | - Tito Trindade
- Department of Chemistry-CICECO Aveiro Institute of Materials; University of Aveiro; 3810-193 Aveiro Portugal
| |
Collapse
|
26
|
Zhang L, Cullen DA, Zhai P, Ding K. Adsorption of Colloidal Metal Nanoparticles via Solvent Engineering. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05148] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Laibao Zhang
- Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - David A. Cullen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Peng Zhai
- Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Kunlun Ding
- Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| |
Collapse
|
27
|
Precise Synthesis of Nanoparticles and Their Catalytic Behavior. TOP ORGANOMETAL CHEM 2020. [DOI: 10.1007/3418_2020_37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
28
|
Xiao H, Wang R, Dong L, Cui Y, Chen S, Sun H, Ma G, Gao D, Wang L. Biocompatible Dendrimer-Encapsulated Palladium Nanoparticles for Oxidation of Morin. ACS OMEGA 2019; 4:18685-18691. [PMID: 31737829 PMCID: PMC6854556 DOI: 10.1021/acsomega.9b02606] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 10/10/2019] [Indexed: 05/08/2023]
Abstract
Development of highly efficient catalysts to expedite the degradation of organic dyes has been drawing great attention. The aggregation of catalysts reduces the accessibility of catalytic centers for organic dyes and therefore decreases their catalytic ability. Herein, we report a facile method to prepare highly biocompatible and stable dendrimer-encapsulated palladium nanoparticles (Pd n -G5MCI NPs), which exhibit high catalytic efficiency for oxidation of morin. The biocompatible dendrimers were prepared via surface modification of G5 polyamidoamine (G5 PAMAM) dendrimers using maleic anhydride and l-cysteine. Then, they were incubated with disodium tetrachloropalladate, followed by reduction using sodium borohydride to generate Pd n -G5MCI NPs. Transmission electron microscopy results demonstrated that palladium nanoparticles (Pd NPs) inside Pd n -G5MCI had small diameters (1.77-2.35 nm) and monodisperse states. Dynamic light scattering results confirmed that Pd n -G5MCI NPs had good dispersion and high stability in water. Furthermore, MTT results demonstrated that Pd n -G5MCI NPs had high biocompatibility. More importantly, Pd n -G5MCI NPs successfully catalyzed the decomposition of H2O2 to the hydroxyl radical (•OH), and the generated •OH quickly oxidized morin. This reaction kinetics followed pseudo-first-order kinetics. Apparent rate constant (k app) is an important criterion for evaluating the catalytic rate. The concentrations of Pd n -G5MCI NPs and H2O2 were positively correlated with k app, whereas the correlation between the concentration of morin and k app was negative. The prepared Pd n -G5MCI NPs have great potential to catalyze the degradation of organic dyes in bio-related systems in the future.
Collapse
Affiliation(s)
- Haiyan Xiao
- Key
Laboratory of Applied Chemistry, College of Environmental and Chemical
Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Ran Wang
- Key
Laboratory of Applied Chemistry, College of Environmental and Chemical
Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Le Dong
- Key
Laboratory of Applied Chemistry, College of Environmental and Chemical
Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Yanshuai Cui
- Key
Laboratory of Applied Chemistry, College of Environmental and Chemical
Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Shengfu Chen
- Key
Laboratory of Biomass Chemical Engineering of Ministry of Education,
College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Haotian Sun
- Key
Laboratory of Biomass Chemical Engineering of Ministry of Education,
College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Guanglong Ma
- Key
Laboratory of Biomass Chemical Engineering of Ministry of Education,
College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Dawei Gao
- Key
Laboratory of Applied Chemistry, College of Environmental and Chemical
Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Longgang Wang
- Key
Laboratory of Applied Chemistry, College of Environmental and Chemical
Engineering, Yanshan University, Qinhuangdao 066004, China
| |
Collapse
|
29
|
Yamamoto K, Imaoka T, Tanabe M, Kambe T. New Horizon of Nanoparticle and Cluster Catalysis with Dendrimers. Chem Rev 2019; 120:1397-1437. [DOI: 10.1021/acs.chemrev.9b00188] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology, Yokohama 226-8503, Japan
- ERATO-JST Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Takane Imaoka
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology, Yokohama 226-8503, Japan
- ERATO-JST Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama 226-8503, Japan
- PRESTO-JST, Kawaguchi 332-0012, Japan
| | - Makoto Tanabe
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology, Yokohama 226-8503, Japan
- ERATO-JST Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Tetsuya Kambe
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology, Yokohama 226-8503, Japan
- ERATO-JST Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| |
Collapse
|
30
|
Bornacelli J, Torres-Torres C, Silva-Pereyra HG, Labrada-Delgado GJ, Crespo-Sosa A, Cheang-Wong JC, Oliver A. Superlinear Photoluminescence by Ultrafast Laser Pulses in Dielectric Matrices with Metal Nanoclusters. Sci Rep 2019; 9:5699. [PMID: 30952901 PMCID: PMC6450893 DOI: 10.1038/s41598-019-42174-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 12/17/2018] [Indexed: 11/25/2022] Open
Abstract
An intense photoluminescence emission was observed from noble metal nanoclusters (Pt, Ag or Au) embedded in sapphire plates, nucleated by MeV ion-implantation and assisted by an annealing process. In particular, the spectral photoluminescence characteristics, such as range and peak emission, were compared to the behavior observed from Pt nanoclusters embedded in a silica matrix and excited by UV irradiation. Correlation between emission energy, nanoclusters size and metal composition were analyzed by using the scaling energy relation EFermi/N1/3 from the spherical Jellium model. The metal nanocluster luminescent spectra were numerically simulated and correctly fitted using the bulk Fermi energy for each metal and a Gaussian nanoclusters size distribution for the samples. Our results suggest protoplasmonics photoluminescence from metal nanoclusters free of surface state or strain effects at the nanoclusters-matrix interface that can influence over their optical properties. These metal nanoclusters present very promising optical features such as bright visible photoluminescence and photostability under strong picosecond laser excitations. Besides superlinear photoluminescence from metal nanoclusters were also observed under UV high power excitation showing a quadratic dependence on the pump power fluence.
Collapse
Affiliation(s)
- J Bornacelli
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Ingeniería Mecánica y Eléctrica Unidad Zacatenco, Instituto Politécnico Nacional, 07738, Ciudad de México, Mexico.
| | - C Torres-Torres
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Ingeniería Mecánica y Eléctrica Unidad Zacatenco, Instituto Politécnico Nacional, 07738, Ciudad de México, Mexico
| | - H G Silva-Pereyra
- IPICyT, División de Materiales Avanzados, Camino a la presa San José 2055, San Luis Potosí, SLP, 78216, Mexico
| | - G J Labrada-Delgado
- IPICyT, División de Materiales Avanzados, Camino a la presa San José 2055, San Luis Potosí, SLP, 78216, Mexico
| | - A Crespo-Sosa
- Instituto de Física, Universidad Nacional Autónoma de México, 04510, Ciudad de México, Mexico
| | - J C Cheang-Wong
- Instituto de Física, Universidad Nacional Autónoma de México, 04510, Ciudad de México, Mexico
| | - A Oliver
- Instituto de Física, Universidad Nacional Autónoma de México, 04510, Ciudad de México, Mexico
| |
Collapse
|
31
|
Ramos MC, Horta VAC, Horta BAC. Molecular Dynamics Simulations of PAMAM and PPI Dendrimers Using the GROMOS-Compatible 2016H66 Force Field. J Chem Inf Model 2019; 59:1444-1457. [DOI: 10.1021/acs.jcim.8b00911] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Mayk C. Ramos
- Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-909, Brazil
| | - Vitor A. C. Horta
- Departamento de Ciência da Computação, Universidade Federal de Juiz de Fora, Juiz de Fora, 36036-900, Brazil
| | - Bruno A. C. Horta
- Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-909, Brazil
| |
Collapse
|
32
|
Yang D, Zhang R, Zhao T, Sun T, Chu X, Liu S, Tang E, Xu X. Efficient reduction of 4-nitrophenol catalyzed by 4-carbo-methoxypyrrolidone modified PAMAM dendrimer–silver nanocomposites. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01655d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Ag–PPDNCs prepared with 4-carbomethoxypyrrolidone modified PAMAM showed very high activity in the reduction of 4-nitrophenol.
Collapse
Affiliation(s)
- Desheng Yang
- College of Chemical & Pharmaceutical Engineering
- Hebei University of Science & Technology
- Shijiazhuang 050018
- P. R. China
| | - Rui Zhang
- College of Chemical & Pharmaceutical Engineering
- Hebei University of Science & Technology
- Shijiazhuang 050018
- P. R. China
| | - Ting Zhao
- College of Chemical & Pharmaceutical Engineering
- Hebei University of Science & Technology
- Shijiazhuang 050018
- P. R. China
| | - Tingting Sun
- College of Chemical & Pharmaceutical Engineering
- Hebei University of Science & Technology
- Shijiazhuang 050018
- P. R. China
| | - Xiaomeng Chu
- College of Chemical & Pharmaceutical Engineering
- Hebei University of Science & Technology
- Shijiazhuang 050018
- P. R. China
| | - Shaojie Liu
- College of Chemical & Pharmaceutical Engineering
- Hebei University of Science & Technology
- Shijiazhuang 050018
- P. R. China
| | - Erjun Tang
- College of Chemical & Pharmaceutical Engineering
- Hebei University of Science & Technology
- Shijiazhuang 050018
- P. R. China
| | - Xiaodong Xu
- Hebei Provincial Key Laboratory of Waterborne Coatings
- Hebei Chenyang Industrial & Trade Group Co., Ltd
- Baoding 072550
- P. R. China
| |
Collapse
|
33
|
Bi X, Maturavongsadit P, Tan Y, Watts M, Bi E, Kegley Z, Morton S, Lu L, Wang Q, Liang A. Polyamidoamine dendrimer-PEG hydrogel and its mechanical property on differentiation of mesenchymal stem cells. Biomed Mater Eng 2018; 30:111-123. [PMID: 30562893 DOI: 10.3233/bme-181037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Biocompatible hydrogel systems with tunable mechanical properties have been reported to influence the behavior and differentiation of mesenchymal stem cells (MSCs). OBJECTIVE To develop a functionalized hydrogel system with well-defined chemical structures and tunable mechanical property for regulation of stem cell differentiation. METHODS An in situ-forming hydrogel system is developed by crosslinking vinyl sulfone functionalized polyamidoamine (PAMAM) dendrimer and multi-armed thiolated polyethylene glycol (PEG) through a thiol-ene Michael addition in aqueous conditions. The viability and differentiation of MSCs in hydrogels of different stiffness are conducted for 21 days under corresponding induction media. RESULTS MSCs are viable in synthesized hydrogels after 48 hours of culture. By varying the concentrations of PAMAM dendrimer and PEG, hydrogels of different gelation time and stiffness are achieved. The MSC differentiation indicates that more osteogenic differentiation is observed in hard gel (5,663 Pa) and more adipogenic differentiation is observed in soft gel (77 Pa) in addition to the differentiation caused by each individual induction media during the process of culture. CONCLUSIONS A biocompatible in situ-forming hydrogel system is successfully synthesized. This hydrogel system has shown influences on differentiation of MSCs and may potentially be important in developing therapeutic strategies in medical applications.
Collapse
Affiliation(s)
- Xiangdong Bi
- Department of Physical Sciences, Charleston Southern University, Charleston, South Carolina, USA
| | - Panita Maturavongsadit
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, USA
| | - Yu Tan
- Department of Bioengineering, Clemson University, Clemson, South Carolina, USA
| | - Morgan Watts
- Department of Physical Sciences, Charleston Southern University, Charleston, South Carolina, USA
| | - Evelyn Bi
- Academic Magnet High School, Charleston, South Carolina, USA
| | - Zachary Kegley
- Department of Physical Sciences, Charleston Southern University, Charleston, South Carolina, USA
| | - Steve Morton
- Research Oceanographer National Ocean Service, Charleston, South Carolina, USA
| | - Lin Lu
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, USA
| | - Qian Wang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, USA
| | - Aiye Liang
- Department of Physical Sciences, Charleston Southern University, Charleston, South Carolina, USA
| |
Collapse
|
34
|
Ultrasensitive ELISA for the detection of hCG based on assembled gold nanoparticles induced by functional polyamidoamine dendrimers. Anal Chim Acta 2018; 1042:116-124. [DOI: 10.1016/j.aca.2018.08.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 08/20/2018] [Indexed: 11/21/2022]
|
35
|
Preparation of metal-polymer nanocomposites by chemical reduction of metal ions: functions of polymer matrices. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1646-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
36
|
Kotte MR, Kuvarega AT, Talapaneni SN, Cho M, Coskun A, Diallo MS. A Facile and Scalable Route to the Preparation of Catalytic Membranes with in Situ Synthesized Supramolecular Dendrimer Particle Hosts for Pt(0) Nanoparticles Using a Low-Generation PAMAM Dendrimer (G1-NH 2) as Precursor. ACS APPLIED MATERIALS & INTERFACES 2018; 10:33238-33251. [PMID: 30199628 DOI: 10.1021/acsami.8b11351] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Since the first reports of Cu dendrimer-encapsulated nanoparticles (DENs) published in 1998, the dendrimer-templating method has become the best and most versatile method for preparing ultrafine metallic and bimetallic nanoparticles (1-3 nm) with well-defined compositions, high catalytic activity, and tunable selectivity. However, DENs have remained for the most part model systems with limited prospects for scale up and integration into high-performance and reusable catalytic modules and systems for industrial-scale applications. Here, we describe a facile and scalable route to the preparation of catalytic polyvinylidene fluoride (PVDF) membranes with in situ synthesized supramolecular dendrimer particles (SDPs) that can serve as hosts and containers for Pt(0) nanoparticles (2-3 nm). These new catalytic membranes were prepared using a reactive encapsulation process similar to that utilized to prepare Pt DENs by addition of a reducing agent (sodium borohydride) to aqueous complexes of Pt(II) + G4-OH/G6-OH polyamidoamine (PAMAM) dendrimers. However, the SDPs (2.4 μm average diameter) of our new mixed matrix PVDF-PAMAM membranes were synthesized in the dope dispersion without purification prior to film casting using (i) a low-generation PAMAM dendrimer (G1-NH2) as particle precursor and (ii) epichlorohydrin, an inexpensive functional reagent, as cross-linker. In addition, the membrane PAMAM particles contain secondary amine groups (∼1.9 mequiv per gram of dry membrane), which are more basic and thus have higher Pt binding affinity than the tertiary amine groups of the G4-OH and G6-OH PAMAM dendrimers. Proof-of-concept experiments show that our new PVDF-PAMAM-G1-Pt/membranes can serve as highly active and reusable catalysts for the hydrogenation of alkenes and alkynes to the corresponding alkanes using (i) H2 at room temperature and a pressure of 1 bar and (ii) low catalyst loadings of ∼1.4-1.6 mg of Pt. Using cyclohexene as model substrate, we observed near quantitative conversion to cyclohexane (∼98%). The regeneration studies showed that our new Pt/membrane catalysts are stable and can be reused for five consecutive reaction cycles for a total duration of 120 h including 60 h of heating at 100 °C under vacuum for substrate, product, and solvent removal with no detectable loss of cyclohexene hydrogenation activity. The overall results of our study point to a promising, versatile, and scalable path for the integration of catalytic membranes with in situ synthesized SDP hosts for Pt(0) nanoparticles into high-throughput modules and systems for heterogeneous catalytic hydrogenations, an important class of reactions that are widely utilized in industry to produce pharmaceuticals, agrochemicals, and specialty chemicals.
Collapse
Affiliation(s)
- Madhusudhana Rao Kotte
- Graduate School of EEWS (Energy, Environment, Water and Sustainability) , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Alex T Kuvarega
- Nanotechnolgy and Water Sustainability Research Unit, College of Science, Engineering and Technology , University of South Africa (UNISA), UNISA Science Campus , 1709 Johannesburg , Republic of South Africa
| | - Siddulu N Talapaneni
- Graduate School of EEWS (Energy, Environment, Water and Sustainability) , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Manki Cho
- Graduate School of EEWS (Energy, Environment, Water and Sustainability) , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Ali Coskun
- Graduate School of EEWS (Energy, Environment, Water and Sustainability) , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Mamadou S Diallo
- Graduate School of EEWS (Energy, Environment, Water and Sustainability) , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
- Division of Chemistry and Chemical Engineering California Institute of Technology , 1200 East California Boulevard , Pasadena , California 91125 , United States
| |
Collapse
|
37
|
Mukerabigwi JF, Ge Z, Kataoka K. Therapeutic Nanoreactors as In Vivo Nanoplatforms for Cancer Therapy. Chemistry 2018; 24:15706-15724. [DOI: 10.1002/chem.201801159] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Jean Felix Mukerabigwi
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026 China
| | - Zhishen Ge
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026 China
| | - Kazunori Kataoka
- Innovation Center of NanoMedicine Institute of Industrial Promotion-Kawasaki 3-25-14 Tonomachi Kawasaki-ku Kawasaki 210-0821 Japan
- Policy Alternatives Research Institute The University of Tokyo Tokyo 113-0033 Japan
| |
Collapse
|
38
|
Berti B, Femoni C, Iapalucci MC, Ruggieri S, Zacchini S. Functionalization, Modification, and Transformation of Platinum Chini Clusters. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800526] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Beatrice Berti
- Dipartimento di Chimica Industriale “Toso Montanari”; Università di Bologna; Viale Risorgimento 4 40136 Bologna Italy
| | - Cristina Femoni
- Dipartimento di Chimica Industriale “Toso Montanari”; Università di Bologna; Viale Risorgimento 4 40136 Bologna Italy
| | - Maria Carmela Iapalucci
- Dipartimento di Chimica Industriale “Toso Montanari”; Università di Bologna; Viale Risorgimento 4 40136 Bologna Italy
| | - Silvia Ruggieri
- Dipartimento di Chimica Industriale “Toso Montanari”; Università di Bologna; Viale Risorgimento 4 40136 Bologna Italy
| | - Stefano Zacchini
- Dipartimento di Chimica Industriale “Toso Montanari”; Università di Bologna; Viale Risorgimento 4 40136 Bologna Italy
| |
Collapse
|
39
|
Ding S, Tian C, Zhu X, Wang H, Wang H, Abney CW, Zhang N, Dai S. Engineering nanoporous organic frameworks to stabilize naked Au clusters: a charge modulation approach. Chem Commun (Camb) 2018; 54:5058-5061. [PMID: 29726871 DOI: 10.1039/c8cc02966k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A simple charge modulation approach has been developed to stabilize naked Au clusters on a nanoporous conjugated organic network. Through engineering pore walls with regulated charges, the controllable growth of Au nanoclusters has been realized. The resulting supported catalyst exhibits excellent performance in the aerobic oxidation of alcohols.
Collapse
Affiliation(s)
- Shunmin Ding
- College of Chemistry, Nanchang University, Nanchang, China.
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Zhao Y, Yuan X, Xu Y, Yang D, Chen L, Liu Q, Cao M, Wu L, Pan Q, Zhang Q. Colloidal Synthesis of Au@Pd Core–Shell Nanorods with Tunable Dimensions and Enhanced Electrocatalytic Activities. Top Catal 2018. [DOI: 10.1007/s11244-018-0956-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
41
|
Surface Science Approach to the Molecular Level Integration of the Principles in Heterogeneous, Homogeneous, and Enzymatic Catalysis. Top Catal 2018. [DOI: 10.1007/s11244-018-0975-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
42
|
Ye R, Liu W, Han H, Somorjai GA. Development and Elucidation of Superior Turnover Rates and Selectivity of Supported Molecular Catalysts. ChemCatChem 2018. [DOI: 10.1002/cctc.201701546] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Rong Ye
- Department of Chemistry University of California, Berkeley, Kavli Energy Nanosciences Institute at Berkeley Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley CA 94720 USA
| | - Wen‐Chi Liu
- Department of Chemistry University of California, Berkeley, Kavli Energy Nanosciences Institute at Berkeley Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley CA 94720 USA
| | - Hui‐Ling Han
- Department of Chemistry University of California, Berkeley, Kavli Energy Nanosciences Institute at Berkeley Berkeley CA 94720 USA
- Materials Sciences Division Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley CA 94720 USA
| | - Gabor A. Somorjai
- Department of Chemistry University of California, Berkeley, Kavli Energy Nanosciences Institute at Berkeley Berkeley CA 94720 USA
- Chemical Sciences Division Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley CA 94720 USA
- Materials Sciences Division Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley CA 94720 USA
| |
Collapse
|
43
|
Peinetti AS, Mizrahi M, Requejo FG, Buceta D, López-Quintela MA, González GA, Battaglini F. Synthesis of nickel entities: From highly stable zerovalent nanoclusters to nanowires. Growth control and catalytic behavior. J Colloid Interface Sci 2018; 516:371-378. [PMID: 29408125 DOI: 10.1016/j.jcis.2018.01.083] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 01/22/2018] [Accepted: 01/23/2018] [Indexed: 11/18/2022]
Abstract
Non-noble metal nanoclusters synthesis is receiving increased attention due to their unique catalytic properties and lower cost. Herein, the synthesis of ligand-free Ni nanoclusters with an average diameter of 0.7 nm corresponding to a structure of 13 atoms is presented; they exhibit a zero-valence state and a high stability toward oxidation and thermal treatment. The nanoclusters formation method consists in the electroreduction of nickel ions inside an ordered mesoporous alumina; also, by increasing the current density, other structures can be obtained reaching to nanowires of 10 nm diameter. A seed-mediated mechanism is proposed to explain the growth to nanowires inside these mesoporous cavities. The size dependence on the catalytic behavior of these entities is illustrated by studying the reduction of methylene blue where the nanoclusters show an outstanding performance.
Collapse
Affiliation(s)
- Ana S Peinetti
- INQUIMAE (CONICET), Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA Buenos Aires, Argentina
| | - Martín Mizrahi
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas, INIFTA (CONICET y Dto. Química, Fac. Cs Ex, UNLP), 1900 La Plata, Argentina
| | - Félix G Requejo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas, INIFTA (CONICET y Dto. Química, Fac. Cs Ex, UNLP), 1900 La Plata, Argentina
| | - David Buceta
- Laboratory of Magnetism and Nanotechnology, Technological Research Institute, University of Santiago de Compostela, Santiago de Compostela E-15782, Spain
| | - M Arturo López-Quintela
- Laboratory of Magnetism and Nanotechnology, Technological Research Institute, University of Santiago de Compostela, Santiago de Compostela E-15782, Spain
| | - Graciela A González
- INQUIMAE (CONICET), Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA Buenos Aires, Argentina
| | - Fernando Battaglini
- INQUIMAE (CONICET), Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA Buenos Aires, Argentina.
| |
Collapse
|
44
|
Wang L, Zhang J, Guo X, Chen S, Cui Y, Yu Q, Yang L, Sun H, Gao D, Xie D. Highly stable and biocompatible zwitterionic dendrimer-encapsulated palladium nanoparticles that maintain their catalytic activity in bacterial solution. NEW J CHEM 2018. [DOI: 10.1039/c8nj04263b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This study offers a method for constructing an artificial enzyme (Pdn-G5MC), which maintains its catalytic efficiency in bacterial solution.
Collapse
|
45
|
Luo L, Timoshenko J, Lapp AS, Frenkel AI, Crooks RM. Structural Characterization of Rh and RhAu Dendrimer-Encapsulated Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:12434-12442. [PMID: 28991487 DOI: 10.1021/acs.langmuir.7b02857] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report the structural characterization of 1-2 nm Rh and RhAu alloy dendrimer-encapsulated nanoparticles (DENs) prepared by chemical reduction with NaBH4. In contrast to previously reported results, in situ and ex situ X-ray absorption spectroscopic experiments indicate that only a fraction of the Rh3+ present in the precursors are reduced by NaBH4. Additional structural analysis of RhAu alloy DENs using extended X-ray absorption fine structure spectroscopy leads to a model in which there is significant segregation of Rh and Au within the nanoparticles. In Rh-rich alloy DENs, Au atoms are segregated on the nanoparticle surface.
Collapse
Affiliation(s)
- Long Luo
- Department of Chemistry and Texas Materials Institute, The University of Texas at Austin , 105 E. 24th Street, Stop A5300, Austin, Texas 78712, United States
| | - Janis Timoshenko
- Department of Materials Science and Chemical Engineering, Stony Brook University , Stony Brook, New York 11794, United States
| | - Aliya S Lapp
- Department of Chemistry and Texas Materials Institute, The University of Texas at Austin , 105 E. 24th Street, Stop A5300, Austin, Texas 78712, United States
| | - Anatoly I Frenkel
- Department of Materials Science and Chemical Engineering, Stony Brook University , Stony Brook, New York 11794, United States
| | - Richard M Crooks
- Department of Chemistry and Texas Materials Institute, The University of Texas at Austin , 105 E. 24th Street, Stop A5300, Austin, Texas 78712, United States
| |
Collapse
|
46
|
Ye R, Zhukhovitskiy AV, Deraedt CV, Toste FD, Somorjai GA. Supported Dendrimer-Encapsulated Metal Clusters: Toward Heterogenizing Homogeneous Catalysts. Acc Chem Res 2017; 50:1894-1901. [PMID: 28704031 DOI: 10.1021/acs.accounts.7b00232] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Recyclable catalysts, especially those that display selective reactivity, are vital for the development of sustainable chemical processes. Among available catalyst platforms, heterogeneous catalysts are particularly well-disposed toward separation from the reaction mixture via filtration methods, which renders them readily recyclable. Furthermore, heterogeneous catalysts offer numerous handles-some without homogeneous analogues-for performance and selectivity optimization. These handles include nanoparticle size, pore profile of porous supports, surface ligands and interface with oxide supports, and flow rate through a solid catalyst bed. Despite these available handles, however, conventional heterogeneous catalysts are themselves often structurally heterogeneous compared to homogeneous catalysts, which complicates efforts to optimize and expand the scope of their reactivity and selectivity. Ongoing efforts in our laboratories are aimed to address the above challenge by heterogenizing homogeneous catalysts, which can be defined as the modification of homogeneous catalysts to render them in a separable (solid) phase from the starting materials and products. Specifically, we grow the small nanoclusters in dendrimers, a class of uniform polymers with the connectivity of fractal trees and generally radial symmetry. Thanks to their dense multivalency, shape persistence, and structural uniformity, dendrimers have proven to be versatile scaffolds for the synthesis and stabilization of small nanoclusters. Then these dendrimer-encapsulated metal clusters (DEMCs) are adsorbed onto mesoporous silica. Through this method, we have achieved selective transformations that had been challenging to accomplish in a heterogeneous setting, e.g., π-bond activation and aldol reactions. Extensive investigation into the catalytic systems under reaction conditions allowed us to correlate the structural features (e.g., oxidation states) of the catalysts and their activity. Moreover, we have demonstrated that supported DEMCs are also excellent catalysts for typical heterogeneous reactions, including hydrogenation and alkane isomerization. Critically, these investigations also confirmed that the supported DEMCs are heterogeneous and stable against leaching. Catalysts optimization is achieved through the modulation of various parameters. The clusters are oxidized (e.g., with PhICl2) or reduced (e.g., with H2) in situ. Changing the dendrimer properties (e.g., generation, terminal functional groups) is analogous to ligand modification in homogeneous catalysts, which affect both catalytic activity and selectivity. Similarly, pore size of the support is another factor in determining product distribution. In a flow reactor, the flow rate is adjusted to control the residence time of the starting material and intermediates, and thus the final product selectivity. Our approach to heterogeneous catalysis affords various advantages: (1) the catalyst system can tap into the reactivity typical to homogeneous catalysts, which conventional heterogeneous catalysts could not achieve; (2) unlike most homogeneous catalysts with comparable performance, the heterogenized homogeneous catalysts can be recycled; (3) improved activity or selectivity compared to conventional homogeneous catalysts is possible because of uniquely heterogeneous parameters for optimization. In this Account, we will briefly introduce metal clusters and describe the synthesis and characterizations of supported DEMCs. We will present the catalysis studies of supported DEMCs in both the batch and flow modes. Lastly, we will summarize the current state of heterogenizing homogeneous catalysis and provide future directions for this area of research.
Collapse
Affiliation(s)
- Rong Ye
- Chemical
Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron
Road, Berkeley, California 94720, United States
| | | | - Christophe V. Deraedt
- Chemical
Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron
Road, Berkeley, California 94720, United States
| | - F. Dean Toste
- Chemical
Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron
Road, Berkeley, California 94720, United States
| | - Gabor A. Somorjai
- Chemical
Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron
Road, Berkeley, California 94720, United States
| |
Collapse
|
47
|
Lu F, Xu Y, Jiang X, Liu Y, Huang J, Sun D. Biosynthesized Pd/γ-Al2O3 catalysts for low-temperature 1,3-butadiene hydrogenation: the effect of calcination atmosphere. NEW J CHEM 2017. [DOI: 10.1039/c7nj02557b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of pretreatment atmosphere on 1,3-butadiene hydrogenation over biosynthesized Pd/γ-Al2O3 catalysts was reported.
Collapse
Affiliation(s)
- Fenfen Lu
- College of Chemistry & Materials Science
- Longyan University
- Longyan
- P. R. China
| | - Yan Xu
- Department of Chemical and Biochemical Engineering
- College of Chemistry and Chemical Engineering
- Fujian Provincial Key Laboratory of Chemical Biology
- Xiamen University
- Xiamen
| | - Xia Jiang
- Department of Chemical and Biochemical Engineering
- College of Chemistry and Chemical Engineering
- Fujian Provincial Key Laboratory of Chemical Biology
- Xiamen University
- Xiamen
| | - Yang Liu
- Department of Chemical and Biochemical Engineering
- College of Chemistry and Chemical Engineering
- Fujian Provincial Key Laboratory of Chemical Biology
- Xiamen University
- Xiamen
| | - Jiale Huang
- Department of Chemical and Biochemical Engineering
- College of Chemistry and Chemical Engineering
- Fujian Provincial Key Laboratory of Chemical Biology
- Xiamen University
- Xiamen
| | - Daohua Sun
- Department of Chemical and Biochemical Engineering
- College of Chemistry and Chemical Engineering
- Fujian Provincial Key Laboratory of Chemical Biology
- Xiamen University
- Xiamen
| |
Collapse
|