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Podlesnaia E, Gerald Inangha P, Vesenka J, Seyring M, Hempel HJ, Rettenmayr M, Csáki A, Fritzsche W. Microfluidic-Generated Seeds for Gold Nanotriangle Synthesis in Three or Two Steps. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2204810. [PMID: 36855325 DOI: 10.1002/smll.202204810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 01/23/2023] [Indexed: 06/02/2023]
Abstract
Nanoparticle synthesis has drawn great attention in the last decades. The study of crystal growth mechanisms and optimization of the existing methods lead to the increasing accessibility of nanomaterials, such as gold nanotriangles which have great potential in the fields of plasmonics and catalysis. To form such structures, a careful balance of reaction parameters has to be maintained. Herein, a novel synthesis of gold nanotriangles from seeds derived with a micromixer, which provides a highly efficient mixing and simple parameter control is reported. The impact of the implemented reactor on the primary seed characteristics is investigated. The following growth steps are studied to reveal the phenomena affecting the shape yield. The use of microfluidic seeds led to the formation of well-defined triangles with a narrower size distribution compared to the entirely conventional batch synthesis. A shortened two-step procedure for the formation of triangles directly from primary seeds, granting an express but robust synthesis is further described. Moreover, the need for a thorough study of seed crystallinity depending on the synthesis conditions, which - together with additional parameter optimization - will bring a new perspective to the use of micromixers which are promising for scaling up nanomaterial production is highlighted.
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Affiliation(s)
- Ekaterina Podlesnaia
- Department of Nanobiophotonics, Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Straße 9, 07745, Jena, Germany
| | - Princess Gerald Inangha
- Department of Nanobiophotonics, Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Straße 9, 07745, Jena, Germany
| | - James Vesenka
- Department of Nanobiophotonics, Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Straße 9, 07745, Jena, Germany
- School of Mathematical and Physical Sciences, University of New England, 11 Hills Beach Road, Biddeford, ME, 04005, USA
| | - Martin Seyring
- Department of Metallic Materials, Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University (FSU), Löbdergraben 32, 07743, Jena, Germany
- Faculty of Electrical Engineering, Schmalkalden University of Applied Sciences, Blechhammer 4-9, 98574, Schmalkalden, Germany
| | - Hans-Jürgen Hempel
- Department of Metallic Materials, Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University (FSU), Löbdergraben 32, 07743, Jena, Germany
| | - Markus Rettenmayr
- Department of Metallic Materials, Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University (FSU), Löbdergraben 32, 07743, Jena, Germany
| | - Andrea Csáki
- Department of Nanobiophotonics, Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Straße 9, 07745, Jena, Germany
| | - Wolfgang Fritzsche
- Department of Nanobiophotonics, Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Straße 9, 07745, Jena, Germany
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2
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Zhang X, Zhao K, Wang X, Wang H, Yang W, Liu J, Li D. Surface-enhanced Raman spectroscopy for environmental monitoring using gold clusters anchored on reduced graphene oxide. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:158879. [PMID: 36152854 DOI: 10.1016/j.scitotenv.2022.158879] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 09/10/2022] [Accepted: 09/16/2022] [Indexed: 06/16/2023]
Abstract
Surface-enhanced Raman spectroscopy is a strong and sensitive analysis tool that can realize single-molecule level detection and provide the fingerprint information of molecules, which has been widely applied in analysing chemistry and biomolecules and monitoring environment. However, it is still a challenge to design and prepare SERS substrates with high enhancement factor, simple synthesis, stability and reproducibility. Here, we synthesized gold clusters anchored on reduced graphene oxide (Au clusters@rGO) using co-reduction method to achieve high SERS enhancement. The substrate of gold clusters anchored on reduced graphene oxide combines the chemical enhancement of reduced graphene oxide and the electromagnetic enhancement of gold clusters, leading to an ultrahigh enhancement factor of 3.5 × 107. The efficient SERS was ascribed to the high localized surface plasmon resonance (LSPR) of aggregations of gold clusters, the synergistic effect of gold clusters and reduced graphene oxide, and the charge transfer between graphene and the molecules. This research will provide an invaluable strategy to design and prepare superior-property SERS substrates.
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Affiliation(s)
- Xiangyu Zhang
- College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China
| | - Kai Zhao
- College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Xianhui Wang
- School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, China
| | - Hongbin Wang
- School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, China
| | - Wenrong Yang
- School of Life and Environmental Sciences, Deakin University, 75 Pigdons Road, Waurn Ponds, VIC 3216, Australia.
| | - Jingquan Liu
- College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China.
| | - Da Li
- College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China.
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3
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Aljarrah MT, Alboull AM, Alharahsheh MS, Ashraf A, Khandakar A. Parametric Study of Gold Nanoparticles Synthesis under Micro-Continuous Flow Conditions. Molecules 2022; 27:molecules27248651. [PMID: 36557787 PMCID: PMC9781614 DOI: 10.3390/molecules27248651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 11/22/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022] Open
Abstract
The synthesis of gold nanoparticles (GNPs) using chemical reduction in batch and microreactor methods has been reported. A parametric study of the effect of several parameters on the size of gold nanoparticles was performed in batch synthesis mode using the modified Martin method. The best-obtained conditions were used to synthesize gold nanoparticles using a glass chip microreactor, and the size of the resulting GNPs from both methods was compared. The presence of polyvinyl alcohol (SC) was used as a capping agent, and sodium borohydride (SB) was used as a reducing agent. Several parameters were studied, including HAuCl4, SC, SB concentrations, the volumetric ratio of SB to gold precursor, pH, temperature, and mixing speed. Various techniques were used to characterize the resulting nanoparticles, including Atomic Absorbance spectroscopy (AAS), Ultraviolet-visible spectroscopy (UV-Vis), and dynamic light scratching (DLS). Optimum conditions were obtained for the synthesis of gold nanoparticles. Under similar reaction conditions, the microreactor consistently produced smaller nanoparticles in the range of 10.42-11.31 nm with a reaction time of less than 1 min.
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Affiliation(s)
- Mohannad T. Aljarrah
- Department of Chemical Engineering, College of Engineering, Jordan University of Science and Technology, Irbid 22110, Jordan
- Department of Chemical Engineering, College of Engineering Technology, University of Doha for Science and Technology, College of Engineering Technology, Doha P.O. Box 24449, Qatar
- Correspondence:
| | - Ala’a M. Alboull
- Department of Chemical Engineering, College of Engineering, Jordan University of Science and Technology, Irbid 22110, Jordan
| | - Mohammad S. Alharahsheh
- Department of Chemical Engineering, College of Engineering, Jordan University of Science and Technology, Irbid 22110, Jordan
| | - Azad Ashraf
- Department of Chemical Engineering, College of Engineering Technology, University of Doha for Science and Technology, College of Engineering Technology, Doha P.O. Box 24449, Qatar
| | - Amith Khandakar
- Department of Electrical Engineering, College of Engineering, Qatar University, Doha P.O. Box 2713, Qatar
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4
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Zhang M, Zhang X, Zhao K, Dong Y, Yang W, Liu J, Li D. Assembly of gold nanorods with L-cysteine reduced graphene oxide for highly efficient NIR-triggered photothermal therapy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 266:120458. [PMID: 34619508 DOI: 10.1016/j.saa.2021.120458] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 09/25/2021] [Accepted: 09/27/2021] [Indexed: 05/26/2023]
Abstract
Near-infrared (NIR) photothermal therapy is an effective partner to the chemotherapy of tumors with the merits of high therapeutic ability and slight side effect on normal tissues. Herein, we synthesized gold nanorods and assembled them with L-cysteine reduced graphene oxide (AuNR@Lcyst-rGO) for efficient photothermal therapy. The high therapeutic efficacy of AuNR@Lcyst-rGO can be due to the high photothermal effect of gold nanorods and reduced graphene oxide, and the synergistic effect of them. The nontoxicity of L-cysteine also guarantees the comfortable biocompatibility of reduced graphene oxide, which is essential for the photothermal absorber used in human tissue. The results demonstrate that assembly of gold nanorods with reduced graphene oxide (AuNR@Lcyst-rGO) is a promising photothermal agent with high efficient NIR-triggered photothermal therapy efficiency, excellent stability, superior biocompatibility.
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Affiliation(s)
- Meng Zhang
- the Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Xiangyu Zhang
- School of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China
| | - Kai Zhao
- School of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Yunxia Dong
- School of Pharmacy, Qingdao University, Qingdao 266071, China
| | - Wenrong Yang
- School of Life and Environmental Sciences, Deakin University, 75 Pigdons Road, Waurn Ponds, VIC 3216, Australia
| | - Jingquan Liu
- School of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Da Li
- School of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China.
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5
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Facile synthesis of biocompatible sub-5 nm alginate-stabilised gold nanoparticles with sonosensitising properties. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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6
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Ho TTT, Dang CH, Huynh TKC, Hoang TKD, Nguyen TD. In situ synthesis of gold nanoparticles on novel nanocomposite lactose/alginate: Recyclable catalysis and colorimetric detection of Fe(III). Carbohydr Polym 2021; 251:116998. [DOI: 10.1016/j.carbpol.2020.116998] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/21/2020] [Accepted: 08/23/2020] [Indexed: 02/08/2023]
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7
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Feng DN, Fang AS, Zhang TY, Ma MZ, Xu ZH, Sun YX, Zhang MT, Shi F. Green synthesis and characterization of gold nanoparticles and their application for the rapid detection of glycyrrhizin with immunochromatographic strips. RSC Adv 2021; 11:23851-23859. [PMID: 35479024 PMCID: PMC9036547 DOI: 10.1039/d1ra02678j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 06/28/2021] [Indexed: 12/19/2022] Open
Abstract
Glycyrrhizin-reduced and stabilized gold nanoparticles were used for a rapid method of detecting glycyrrhizin content.
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Affiliation(s)
- Dan-Ni Feng
- College of Life Science
- Shihezi University
- Shihezi
- P. R. China
| | - A-She Fang
- College of Life Science
- Shihezi University
- Shihezi
- P. R. China
| | - Tie-Ying Zhang
- College of Life Science
- Shihezi University
- Shihezi
- P. R. China
| | - Ming-Ze Ma
- College of Life Science
- Shihezi University
- Shihezi
- P. R. China
| | - Zhi-Hua Xu
- College of Life Science
- Shihezi University
- Shihezi
- P. R. China
| | - Yi-Xiao Sun
- College of Life Science
- Shihezi University
- Shihezi
- P. R. China
| | | | - Feng Shi
- College of Life Science
- Shihezi University
- Shihezi
- P. R. China
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8
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Panariello L, Damilos S, du Toit H, Wu G, Radhakrishnan ANP, Parkin IP, Gavriilidis A. Highly reproducible, high-yield flow synthesis of gold nanoparticles based on a rational reactor design exploiting the reduction of passivated Au(iii). REACT CHEM ENG 2020. [DOI: 10.1039/c9re00469f] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly-reproducible, high-yield flow synthesis of gold nanoparticles is developed based on synthesis kinetics from a high-pH gold precursor solution.
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Affiliation(s)
- Luca Panariello
- Department of Chemical Engineering
- University College London
- London WC1E 7JE
- UK
| | - Spyridon Damilos
- Department of Chemical Engineering
- University College London
- London WC1E 7JE
- UK
| | - Hendrik du Toit
- Department of Chemical Engineering
- University College London
- London WC1E 7JE
- UK
| | - Gaowei Wu
- Department of Chemical Engineering
- University College London
- London WC1E 7JE
- UK
| | | | - Ivan P. Parkin
- Department of Chemistry
- University College London
- London WC1H 0AJ
- UK
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9
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Solsona M, Vollenbroek JC, Tregouet CBM, Nieuwelink AE, Olthuis W, van den Berg A, Weckhuysen BM, Odijk M. Microfluidics and catalyst particles. LAB ON A CHIP 2019; 19:3575-3601. [PMID: 31559978 DOI: 10.1039/c9lc00318e] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this review article, we discuss the latest advances and future perspectives of microfluidics for micro/nanoscale catalyst particle synthesis and analysis. In the first section, we present an overview of the different methods to synthesize catalysts making use of microfluidics and in the second section, we critically review catalyst particle characterization using microfluidics. The strengths and challenges of these approaches are highlighted with various showcases selected from the recent literature. In the third section, we give our opinion on the future perspectives of the combination of catalytic nanostructures and microfluidics. We anticipate that in the synthesis and analysis of individual catalyst particles, generation of higher throughput and better understanding of transport inside individual porous catalyst particles are some of the most important benefits of microfluidics for catalyst research.
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Affiliation(s)
- M Solsona
- BIOS Lab on a Chip Group, MESA+ Institute for Nanotechnology, University of Twente, Drienerlolaan 5, Enschede, The Netherlands.
| | - J C Vollenbroek
- BIOS Lab on a Chip Group, MESA+ Institute for Nanotechnology, University of Twente, Drienerlolaan 5, Enschede, The Netherlands.
| | - C B M Tregouet
- BIOS Lab on a Chip Group, MESA+ Institute for Nanotechnology, University of Twente, Drienerlolaan 5, Enschede, The Netherlands.
| | - A-E Nieuwelink
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - W Olthuis
- BIOS Lab on a Chip Group, MESA+ Institute for Nanotechnology, University of Twente, Drienerlolaan 5, Enschede, The Netherlands.
| | - A van den Berg
- BIOS Lab on a Chip Group, MESA+ Institute for Nanotechnology, University of Twente, Drienerlolaan 5, Enschede, The Netherlands.
| | - B M Weckhuysen
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - M Odijk
- BIOS Lab on a Chip Group, MESA+ Institute for Nanotechnology, University of Twente, Drienerlolaan 5, Enschede, The Netherlands.
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10
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Chen Y, Chen L, Wu Y, Di J. Highly sensitive determination of dopamine based on the aggregation of small-sized gold nanoparticles. Microchem J 2019. [DOI: 10.1016/j.microc.2019.04.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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11
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Ching Lau C, Kemal Bayazit M, Reardon PJT, Tang J. Microwave Intensified Synthesis: Batch and Flow Chemistry. CHEM REC 2018; 19:172-187. [DOI: 10.1002/tcr.201800121] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 11/13/2018] [Indexed: 01/04/2023]
Affiliation(s)
- Chi Ching Lau
- Department of Chemical EngineeringUniversity College London Torrington Place WC1E 7JE
| | - Mustafa Kemal Bayazit
- Department of Chemical EngineeringUniversity College London Torrington Place WC1E 7JE
| | | | - Junwang Tang
- Department of Chemical EngineeringUniversity College London Torrington Place WC1E 7JE
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12
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Huang H, Toit HD, Besenhard MO, Ben-Jaber S, Dobson P, Parkin I, Gavriilidis A. Continuous flow synthesis of ultrasmall gold nanoparticles in a microreactor using trisodium citrate and their SERS performance. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.06.050] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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13
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Huang H, du Toit H, Panariello L, Mazzei L, Gavriilidis A. Continuous synthesis of gold nanoparticles in micro- and millifluidic systems. PHYSICAL SCIENCES REVIEWS 2018. [DOI: 10.1515/psr-2017-0119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Gold nanomaterials have diverse applications ranging from healthcare and nanomedicine to analytical sciences and catalysis. Microfluidic and millifluidic reactors offer multiple advantages for their synthesis and manufacturing, including controlled or fast mixing, accurate reaction time control and excellent heat transfer. These advantages are demonstrated by reviewing gold nanoparticle synthesis strategies in flow devices. However, there are still challenges to be resolved, such as reactor fouling, particularly if robust manufacturing processes are to be developed to achieve the desired targets in terms of nanoparticle size, size distribution, surface properties, process throughput and robustness. Solutions to these challenges are more effective through a coordinated approach from chemists, engineers and physicists, which has at its core a qualitative and quantitative understanding of the synthesis processes and reactor operation. This is important as nanoparticle synthesis is complex, encompassing multiple phenomena interacting with each other, often taking place at short timescales. The proposed methodology for the development of reactors and processes is generic and contains various interconnected considerations. It aims to be a starting point towards rigorous design procedures for the robust and reproducible continuous flow synthesis of gold nanoparticles.
Graphical Abstract:
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Affiliation(s)
- He Huang
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , UK
| | - Hendrik du Toit
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , UK
| | - Luca Panariello
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , UK
| | - Luca Mazzei
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , UK
| | - Asterios Gavriilidis
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , UK
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14
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Effect of citrate substitution by various α-hydroxycarboxylate anions on properties of gold nanoparticles synthesized by Turkevich method. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.03.073] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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15
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Cobas Gomez H, Mansini Cardoso R, de Novais Schianti J, Marim de Oliveira A, Gongora-Rubio MR. Fab on a Package: LTCC Microfluidic Devices Applied to Chemical Process Miniaturization. MICROMACHINES 2018; 9:E285. [PMID: 30424218 PMCID: PMC6187343 DOI: 10.3390/mi9060285] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/13/2018] [Accepted: 04/17/2018] [Indexed: 01/06/2023]
Abstract
Microfluidics has brought diverse advantages to chemical processes, allowing higher control of reactions and economy of reagents and energy. Low temperature co-fired ceramics (LTCC) have additional advantages as material for fabrication of microfluidic devices, such as high compatibility with chemical reagents with typical average surface roughness of 0.3154 μm, easy scaling, and microfabrication. The conjugation of LTCC technology with microfluidics allows the development of micrometric-sized channels and reactors exploiting the advantages of fast and controlled mixing and heat transfer processes, essential for the synthesis and surface functionalization of nanoparticles. Since the chemical process area is evolving toward miniaturization and continuous flow processing, we verify that microfluidic devices based on LTCC technology have a relevant role in implementing several chemical processes. The present work reviews various LTCC microfluidic devices, developed in our laboratory, applied to chemical process miniaturization, with different geometries to implement processes such as ionic gelation, emulsification, nanoprecipitation, solvent extraction, nanoparticle synthesis and functionalization, and emulsion-diffusion/solvent extraction process. All fabricated microfluidics structures can operate in a flow range of mL/min, indicating that LTCC technology provides a means to enhance micro- and nanoparticle production yield.
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Affiliation(s)
- Houari Cobas Gomez
- Micromanufacturing Laboratory, Center for Bionanomanufacturing, Institute for Technological Research, 05508-901 São Paulo, Brazil.
| | - Roberta Mansini Cardoso
- Supramolecular Chemistry and Nanotechnology Laboratory, Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, Brazil.
| | - Juliana de Novais Schianti
- Micromanufacturing Laboratory, Center for Bionanomanufacturing, Institute for Technological Research, 05508-901 São Paulo, Brazil.
| | - Adriano Marim de Oliveira
- Laboratory of Chemical Processes and Particle Technology, Center for Bionanomanufacturing, Institute for Technological Research, 05508-901 São Paulo, Brazil.
| | - Mario Ricardo Gongora-Rubio
- Micromanufacturing Laboratory, Center for Bionanomanufacturing, Institute for Technological Research, 05508-901 São Paulo, Brazil.
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16
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Smith G, Girardon JS, Paul JF, Berrier E. Dynamics of a plasmon-activated p-mercaptobenzoic acid layer deposited over Au nanoparticles using time-resolved SERS. Phys Chem Chem Phys 2018; 18:19567-73. [PMID: 27156862 DOI: 10.1039/c6cp02353c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Time-dependent SERS intensity recorded over a drop-coated coffee-ring pattern of p-MBA with gold colloids was investigated as a function of the specific laser power applied. Pure electromagnetic enhancement produced stochastic intensity variations of the whole SER spectra, which were mainly correlated with evolutions of the background intensity. Besides long-term, non-reversible spectral changes caused by plasmon-induced decarboxylation of p-MBA, transient original spectral profiles showing additional lines were also observed as the specific power reached 5.5 × 10(4) W cm(-2). An unprecedented qualitative and quantitative study of SERS intensity variations based on the complementary use of both extreme deviation and cross-correlation statistics is provided, which resulted in an improved understanding of SERS mechanisms. More precisely, cross-correlation analysis made it possible to follow the evolution of groups of modes assigned to one species or sharing the same symmetry while so-called individual events denote particular resonance structures, whose occurrence was tentatively related to a photo-thermally activated motion of the gold nanostructures.
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Affiliation(s)
- Gina Smith
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France.
| | - Jean-Sébastien Girardon
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France.
| | - Jean-François Paul
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France.
| | - Elise Berrier
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France.
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17
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Baber R, Mazzei L, Thanh NTK, Gavriilidis A. An engineering approach to synthesis of gold and silver nanoparticles by controlling hydrodynamics and mixing based on a coaxial flow reactor. NANOSCALE 2017; 9:14149-14161. [PMID: 28905060 DOI: 10.1039/c7nr04962e] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this work we present a detailed study of flow technology approaches that could open up new possibilities for nanoparticle synthesis. The synthesis of gold and silver nanoparticles (NPs) in a flow device based on a coaxial flow reactor (CFR) was investigated. The CFR comprised of an outer glass tube of 2 mm inner diameter (I.D.) and an inner glass tube whose I.D. varied between 0.142 and 0.798 mm. A split and recombine (SAR) mixer and coiled flow inverter (CFI) were further employed to alter the mixing conditions after the CFR. The 'Turkevich' method was used to synthesize gold NPs, with a CFR followed by a CFI. This assembly allows control over nucleation and growth through variation of residence time. Increasing the total flow rate from 0.25 ml min-1 to 3 ml min-1 resulted initially in a constant Au NP size, and beyond 1 ml min-1 to a size increase of Au NPs from 17.9 ± 2.1 nm to 23.9 ± 4.7 nm. The temperature was varied between 60-100 °C and a minimum Au NP size of 17.9 ± 2.1 nm was observed at 80 °C. Silver NPs were synthesized in a CFR followed by a SAR mixer, using sodium borohydride to reduce silver nitrate in the presence of trisodium citrate. The SAR mixer provided an enhancement of the well-controlled laminar mixing in the CFR. Increasing silver nitrate concentration resulted in a decrease in Ag NP size from 5.5 ± 2.4 nm to 3.4 ± 1.4 nm. Different hydrodynamic conditions were studied in the CFR operated in isolation for silver NP synthesis. Increasing the Reynolds number from 132 to 530 in the inner tube created a vortex flow resulting in Ag NPs in the size range between 5.9 ± 1.5 nm to 7.7 ± 3.4 nm. Decreasing the inner tube I.D. from 0.798 mm to 0.142 mm resulted in a decrease in Ag NP size from 10.5 ± 4.0 nm to 4.7 ± 1.4 nm. Thus, changing the thickness of the inner stream enabled control over size of the Ag NPs.
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Affiliation(s)
- Razwan Baber
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
| | - Luca Mazzei
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
| | - Nguyen Thi Kim Thanh
- Biophysics Group, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK. and UCL Healthcare Biomagnetic and Nanomaterials Laboratories, 21 Albemarle Street, London W1S 4BS, UK
| | - Asterios Gavriilidis
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
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18
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Silvestri A, Lay L, Psaro R, Polito L, Evangelisti C. Fluidic Manufacture of Star-Shaped Gold Nanoparticles. Chemistry 2017; 23:9732-9735. [DOI: 10.1002/chem.201701617] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Alessandro Silvestri
- Nanotechnology Lab.; National Council of the Research; CNR-ISTM; Via G. Fantoli 16/15 20138 Milan Italy
- Department of Chemistry; University of Milan; Via C. Golgi 19 20133 Milan Italy
- Present address: Department of Biomaterials; Max-Planck Institute of Colloids and Interfaces; Potsdam-Golm 14476 Germany
| | - Luigi Lay
- Department of Chemistry; University of Milan; Via C. Golgi 19 20133 Milan Italy
- CRC Materiali Polimerici (LaMPo); University of Milan; Via C. Golgi 19 20133 Milan Italy
| | - Rinaldo Psaro
- Nanotechnology Lab.; National Council of the Research; CNR-ISTM; Via G. Fantoli 16/15 20138 Milan Italy
| | - Laura Polito
- Nanotechnology Lab.; National Council of the Research; CNR-ISTM; Via G. Fantoli 16/15 20138 Milan Italy
| | - Claudio Evangelisti
- Nanotechnology Lab.; National Council of the Research; CNR-ISTM; Via G. Fantoli 16/15 20138 Milan Italy
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19
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du Toit H, Macdonald TJ, Huang H, Parkin IP, Gavriilidis A. Continuous flow synthesis of citrate capped gold nanoparticles using UV induced nucleation. RSC Adv 2017. [DOI: 10.1039/c6ra27173a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel multimodal reactor system for separating the nucleation and growth phases of gold nanoparticle synthesis to control particle size.
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Affiliation(s)
- H. du Toit
- Department of Chemical Engineering
- University College London
- London
- UK
| | | | - H. Huang
- Department of Chemical Engineering
- University College London
- London
- UK
| | - I. P. Parkin
- Department of Chemistry
- University College London
- London
- UK
| | - A. Gavriilidis
- Department of Chemical Engineering
- University College London
- London
- UK
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20
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Tofighi G, Lichtenberg H, Pesek J, Sheppard TL, Wang W, Schöttner L, Rinke G, Dittmeyer R, Grunwaldt JD. Continuous microfluidic synthesis of colloidal ultrasmall gold nanoparticles:in situstudy of the early reaction stages and application for catalysis. REACT CHEM ENG 2017. [DOI: 10.1039/c7re00114b] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The formation of gold nanoparticles in the first 2–20 ms of the reaction was studiedin situwith XAS using microfluidics.
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Affiliation(s)
- Ghazal Tofighi
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology (KIT)
- D-76131 Karlsruhe
- Germany
| | - Henning Lichtenberg
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology (KIT)
- D-76131 Karlsruhe
- Germany
- Institute of Catalysis Research and Technology (IKFT)
| | - Jan Pesek
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology (KIT)
- D-76131 Karlsruhe
- Germany
| | - Thomas L. Sheppard
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology (KIT)
- D-76131 Karlsruhe
- Germany
- Institute of Catalysis Research and Technology (IKFT)
| | - Wu Wang
- Institute of Nanotechnology (INT)
- Karlsruhe Institute of Technology (KIT)
- D-76344 Eggenstein-Leopoldshafen
- Germany
| | - Ludger Schöttner
- Institute of Functional Interfaces (IFG)
- Karlsruhe Institute of Technology (KIT)
- D-76344 Eggenstein-Leopoldshafen
- Germany
| | - Günter Rinke
- Institute for Micro Process Engineering (IMVT)
- Karlsruhe Institute of Technology (KIT)
- D-76344 Eggenstein-Leopoldshafen
- Germany
| | - Roland Dittmeyer
- Institute for Micro Process Engineering (IMVT)
- Karlsruhe Institute of Technology (KIT)
- D-76344 Eggenstein-Leopoldshafen
- Germany
| | - Jan-Dierk Grunwaldt
- Institute for Chemical Technology and Polymer Chemistry (ITCP)
- Karlsruhe Institute of Technology (KIT)
- D-76131 Karlsruhe
- Germany
- Institute of Catalysis Research and Technology (IKFT)
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21
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Penhoat M, Vanbésien T, Cocud A, Addad A, Vezin H, Rolando C. PTFE supported gold nanoparticles as photocatalysts for oxidative esterification of aldehydes. NEW J CHEM 2016. [DOI: 10.1039/c5nj03451e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fast and mild visible light photocatalytic conditions for oxidative esterification of aldehydes using H2O2 and the AuNP/PTFE catalyst.
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Affiliation(s)
- Maël Penhoat
- Université de Lille
- CNRS
- USR 3290
- MSAP
- Miniaturisation pour la Synthèse l'Analyse et la Protéomique
| | - Théodore Vanbésien
- Université de Lille
- CNRS
- USR 3290
- MSAP
- Miniaturisation pour la Synthèse l'Analyse et la Protéomique
| | - Adrien Cocud
- Université de Lille
- CNRS
- USR 3290
- MSAP
- Miniaturisation pour la Synthèse l'Analyse et la Protéomique
| | - Ahmed Addad
- Université de Lille
- CNRS
- FR 2638
- Institut Eugène-Michel Chevreul
- FR CNRS
| | - Hervé Vezin
- Université de Lille
- CNRS
- FR 2638
- Institut Eugène-Michel Chevreul
- FR CNRS
| | - Christian Rolando
- Université de Lille
- CNRS
- USR 3290
- MSAP
- Miniaturisation pour la Synthèse l'Analyse et la Protéomique
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22
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Raliya R, Biswas P. Environmentally benign bio-inspired synthesis of Au nanoparticles, their self-assembly and agglomeration. RSC Adv 2015. [DOI: 10.1039/c5ra04569j] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The synthesis and characterization of stable gold nanoparticles (Au NPs) from gold chloride in soluble protein extracts of tomato (Solanum lycopersicum L.) leaves is demonstrated.
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Affiliation(s)
- Ramesh Raliya
- Aerosol and Air Quality Research Laboratory
- Dept. of Energy, Environmental and Chemical Engineering
- Washington University in St. Louis
- St. Louis
- USA
| | - Pratim Biswas
- Aerosol and Air Quality Research Laboratory
- Dept. of Energy, Environmental and Chemical Engineering
- Washington University in St. Louis
- St. Louis
- USA
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23
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Hayashi N, Sakai Y, Tsunoyama H, Nakajima A. Development of ultrafine multichannel microfluidic mixer for synthesis of bimetallic nanoclusters: catalytic application of highly monodisperse AuPd nanoclusters stabilized by poly(N-vinylpyrrolidone). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:10539-10547. [PMID: 25145798 DOI: 10.1021/la501642m] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
On account of their novel properties, bimetallic nanoparticles and nanoclusters (NCs) are strong potential candidates for optical, magnetic, and catalytic functional materials. These properties depend on the chemical composition and size (number of constituent atoms) of the NCs. Control of size, structure, and composition is particularly important for fabricating highly functional materials based on bimetallic NCs. Size- and structure-controlled synthesis of two-element alloys can reveal their intrinsic electronic synergistic effects. However, because synergistic enhancement of activity is strongly affected by composition as well as by size and structure, controlled synthesis is a challenging task, particularly in catalytic applications. To investigate catalytic synergistic effects, we have synthesized highly monodisperse, sub-2 nm, solid-solution AuPd NCs stabilized with poly(N-vinylpyrrolidone) (AuPd:PVP) using a newly developed ultrafine microfluidic mixing device with 15 μm wide multiple lamination channels. The synergistic enhancement for catalytic aerobic oxidation of benzyl alcohol exhibited a volcano-shaped trend, with a maximum at 20-65 at. % Pd. From X-ray photoelectron spectroscopic measurements, we confirmed that the enhanced activity originates from the enhanced electron density at the Au sites, donated by Pd sites.
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Affiliation(s)
- Naoto Hayashi
- Nakajima Designer Nanocluster Assembly Project, Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency , 3-2-1 Sakado, Kawasaki 213-0012, Japan
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25
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Krishnamurthy S, Esterle A, Sharma NC, Sahi SV. Yucca-derived synthesis of gold nanomaterial and their catalytic potential. NANOSCALE RESEARCH LETTERS 2014; 9:627. [PMID: 25489281 PMCID: PMC4256969 DOI: 10.1186/1556-276x-9-627] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 11/05/2014] [Indexed: 05/03/2023]
Abstract
AuNPs ranging in 20 to 300 nm size were synthesized at a room temperature using Yucca filamentosa leaf extract. Diverse nanomaterial morphologies were obtained by varying the extract concentration, reaction pH, and temperature. While low volumes of extract (0.25 and 0.5 mL) induced the formation of microscale Au sheets with edge length greater than 1 μm, high volumes yielded spherical particles ranging from 20 to 200 nm. Varying pH of the solution significantly influenced the particle shape with the production of largely spherical particles at pH 5 to 6 and truncated triangles at pH 2. Separation of multidimensional nanostructures was achieved using a novel method of sucrose density gradient centrifugation. The catalytic function of Yucca-derived AuNPs was demonstrated by degradation of a wastewater dye: methylene blue using spectrophotometric measurements over time. Treatment with Au nanosheets and spheres demonstrated methylene blue degradation approximately 100% greater than the activity in control at 60 min.
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Affiliation(s)
- Sneha Krishnamurthy
- Department of Biology, Western Kentucky University, 1906 College Heights Boulevard, Bowling Green 42101-1080, KY, USA
| | - Andrea Esterle
- Department of Biology, Western Kentucky University, 1906 College Heights Boulevard, Bowling Green 42101-1080, KY, USA
| | - Nilesh C Sharma
- Department of Biology, Western Kentucky University, 1906 College Heights Boulevard, Bowling Green 42101-1080, KY, USA
| | - Shivendra V Sahi
- Department of Biology, Western Kentucky University, 1906 College Heights Boulevard, Bowling Green 42101-1080, KY, USA
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26
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Krishna KS, Li Y, Li S, Kumar CS. Lab-on-a-chip synthesis of inorganic nanomaterials and quantum dots for biomedical applications. Adv Drug Deliv Rev 2013; 65:1470-95. [PMID: 23726944 DOI: 10.1016/j.addr.2013.05.006] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Revised: 05/14/2013] [Accepted: 05/22/2013] [Indexed: 10/26/2022]
Abstract
The past two decades have seen a dramatic raise in the number of investigations leading to the development of Lab-on-a-Chip (LOC) devices for synthesis of nanomaterials. A majority of these investigations were focused on inorganic nanomaterials comprising of metals, metal oxides, nanocomposites and quantum dots. Herein, we provide an analysis of these findings, especially, considering the more recent developments in this new decade. We made an attempt to bring out the differences between chip-based as well as tubular continuous flow systems. We also cover, for the first time, various opportunities the tools from the field of computational fluid dynamics provide in designing LOC systems for synthesis inorganic nanomaterials. Particularly, we provide unique examples to demonstrate that there is a need for concerted effort to utilize LOC devices not only for synthesis of inorganic nanomaterials but also for carrying out superior in vitro studies thereby, paving the way for faster clinical translation. Even though LOC devices with the possibility to carry out multi-step syntheses have been designed, surprisingly, such systems have not been utilized for carrying out simultaneous synthesis and bio-functionalization of nanomaterials. While traditionally, LOC devices are primarily based on microfluidic systems, in this review article, we make a case for utilizing millifluidic systems for more efficient synthesis, bio-functionalization and in vitro studies of inorganic nanomaterials tailor-made for biomedical applications. Finally, recent advances in the field clearly point out the possibility for pushing the boundaries of current medical practices towards personalized health care with a vision to develop automated LOC-based instrumentation for carrying out simultaneous synthesis, bio-functionalization and in vitro evaluation of inorganic nanomaterials for biomedical applications.
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27
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Schwartzkopf M, Buffet A, Körstgens V, Metwalli E, Schlage K, Benecke G, Perlich J, Rawolle M, Rothkirch A, Heidmann B, Herzog G, Müller-Buschbaum P, Röhlsberger R, Gehrke R, Stribeck N, Roth SV. From atoms to layers: in situ gold cluster growth kinetics during sputter deposition. NANOSCALE 2013; 5:5053-5062. [PMID: 23640164 DOI: 10.1039/c3nr34216f] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The adjustment of size-dependent catalytic, electrical and optical properties of gold cluster assemblies is a very significant issue in modern applied nanotechnology. We present a real-time investigation of the growth kinetics of gold nanostructures from small nuclei to a complete gold layer during magnetron sputter deposition with high time resolution by means of in situ microbeam grazing incidence small-angle X-ray scattering (μGISAXS). We specify the four-stage growth including their thresholds with sub-monolayer resolution and identify phase transitions monitored in Yoneda intensity as a material-specific characteristic. An innovative and flexible geometrical model enables the extraction of morphological real space parameters, such as cluster size and shape, correlation distance, layer porosity and surface coverage, directly from reciprocal space scattering data. This approach enables a large variety of future investigations of the influence of different process parameters on the thin metal film morphology. Furthermore, our study allows for deducing the wetting behavior of gold cluster films on solid substrates and provides a better understanding of the growth kinetics in general, which is essential for optimization of manufacturing parameters, saving energy and resources.
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28
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Mamo T, Poland GA. Nanovaccinology: The next generation of vaccines meets 21st century materials science and engineering. Vaccine 2012; 30:6609-11. [DOI: 10.1016/j.vaccine.2012.08.023] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Accepted: 08/13/2012] [Indexed: 10/27/2022]
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