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Cutroneo M, Havranek V, Mackova A, Malinsky P, Silipigni L, Slepicka P, Fajstavr D, Torrisi L. Synthesis of Porous Polydimethylsiloxane Gold Nanoparticles Composites by a Single Step Laser Ablation Process. Int J Mol Sci 2021; 22:ijms222212155. [PMID: 34830035 PMCID: PMC8623421 DOI: 10.3390/ijms222212155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/02/2021] [Accepted: 11/08/2021] [Indexed: 11/16/2022] Open
Abstract
Typically, polymeric composites containing nanoparticles are realized by incorporating pre-made nanoparticles into a polymer matrix by using blending solvent or by the reduction of metal salt dispersed in the polymeric matrix. Generally, the production of pre-made Au NPs occurs in liquids with two-step processes: producing the gold nanoparticles first and then adding them to the liquid polymer. A reproducible method to synthetize Au nanoparticles (NPs) into polydimethylsiloxane (PDMS) without any external reducing or stabilizing agent is a challenge. In this paper, a single-step method is proposed to synthetize nanoparticles (NPs) and at the same time to realize reproducible porous and bulk composites using laser ablation in liquid. With this single-step process, the gold nanoparticles are therefore produced directly in the liquid polymer. The optical properties of the suspensions of AuNPs in distilled water and in the curing agent have been analyzed by the UV-VIS spectroscopy, employed in the transmission mode, and compared with those of the pure curing agent. The electrical dc conductivity of the porous PDMS/Au NPs nanocomposites has been evaluated by the I–V characteristics. Scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analysis have monitored the composition and morphology of the so-obtained composites and the size of the fabricated Au nanoparticles. Atomic force microscopy (AFM) has been used to determine the roughness of the bulk PDMS and its Au NP composites.
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Affiliation(s)
- Mariapompea Cutroneo
- Nuclear Physics Institute, AS CR, 250 68 Rez, Czech Republic; (V.H.); (A.M.); (P.M.)
- Correspondence:
| | - Vladimir Havranek
- Nuclear Physics Institute, AS CR, 250 68 Rez, Czech Republic; (V.H.); (A.M.); (P.M.)
| | - Anna Mackova
- Nuclear Physics Institute, AS CR, 250 68 Rez, Czech Republic; (V.H.); (A.M.); (P.M.)
- Department of Physics, Faculty of Science, University of J. E. Purkyně, České Mládeže 8, 400 96 Ústí nad Labem, Czech Republic
| | - Petr Malinsky
- Nuclear Physics Institute, AS CR, 250 68 Rez, Czech Republic; (V.H.); (A.M.); (P.M.)
- Department of Physics, Faculty of Science, University of J. E. Purkyně, České Mládeže 8, 400 96 Ústí nad Labem, Czech Republic
| | - Letteria Silipigni
- Department of Physics (MIFT), Messina University, V.le F.S. D’Alcontres 31, 98166 Messina, Italy; (L.S.); (L.T.)
- INFN, Sezione di Catania, Via S. Sofia 64, 95123 Catania, Italy
| | - Petr Slepicka
- Department of Solid State Engineering, Institute of Chemical Technology, 166 28 Prague, Czech Republic; (P.S.); (D.F.)
| | - Dominik Fajstavr
- Department of Solid State Engineering, Institute of Chemical Technology, 166 28 Prague, Czech Republic; (P.S.); (D.F.)
| | - Lorenzo Torrisi
- Department of Physics (MIFT), Messina University, V.le F.S. D’Alcontres 31, 98166 Messina, Italy; (L.S.); (L.T.)
- INFN, Sezione di Catania, Via S. Sofia 64, 95123 Catania, Italy
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Arivarasan VK, Loganathan K, Venkatesan J, Chaskar AC. ‘Synergistic-Cidal’ Effect of Amoxicillin Conjugated Silver Nanoparticles Against Escherichia coli. BIONANOSCIENCE 2021. [DOI: 10.1007/s12668-021-00832-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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3
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Hung TY, Liu JAC, Lee WH, Li JR. Hierarchical Nanoparticle Assemblies Formed via One-Step Catalytic Stamp Pattern Transfer. ACS APPLIED MATERIALS & INTERFACES 2019; 11:4667-4677. [PMID: 30607942 DOI: 10.1021/acsami.8b19807] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The one-step catalytic stamp pattern transfer process is described for producing arrays of hierarchical nanoparticle assemblies. The method simply combines in situ nanoparticle synthesis triggered by free residual Si-H groups on PDMS stamps and the lift-off pattern transfer technique. No additional nanoparticle synthesis procedure is required before the pattern transfer process. Exquisitely uniform and precisely spaced hierarchical nanoparticle assemblies with designed geometry can be rapidly produced using the catalytic stamp pattern transfer process. Sequential catalytic stamp pattern transfer also is described to generate multilayered, hierarchical nanoparticle assemblies with various geometries. The hierarchical nanoparticle assemblies catalytically transferred onto the surface are not just nanoparticles but nanoparticle-polydimethylsiloxane residue composites. The in situ-synthesized nanoparticles retain optical properties. The hierarchical nanoparticle assemblies with precisely controlled geometry further show potential in the application of surface-enhanced Raman scattering. The capability of one-step catalytic stamp pattern transfer allows the scalable and reproducible fabrication of well-defined hierarchical nanoparticle assemblies.
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Affiliation(s)
- Tzu-Yi Hung
- Department of Chemistry , National Cheng Kung University , No. 1 College Road , Tainan 70101 , Taiwan
| | - Jessica An-Chieh Liu
- Department of Chemistry , National Cheng Kung University , No. 1 College Road , Tainan 70101 , Taiwan
| | - Wen-Hsiu Lee
- Department of Chemistry , National Cheng Kung University , No. 1 College Road , Tainan 70101 , Taiwan
| | - Jie-Ren Li
- Department of Chemistry , National Cheng Kung University , No. 1 College Road , Tainan 70101 , Taiwan
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Ju HX, Zhuang QK, Long YT. The Preface. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.11.040] [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]
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Tu Q, Tian C, Ma T, Pang L, Wang J. Click synthesis of quaternized poly(dimethylaminoethyl methacrylate) functionalized graphene oxide with improved antibacterial and antifouling ability. Colloids Surf B Biointerfaces 2016; 141:196-205. [PMID: 26852103 DOI: 10.1016/j.colsurfb.2016.01.046] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 12/22/2015] [Accepted: 01/26/2016] [Indexed: 12/18/2022]
Abstract
A quaternized poly(dimethylaminoethyl methacrylate) functionalized graphene oxide (GO-QPDMAEMA) was successfully prepared in this study via click chemistry. Alkyne-functionalized graphene oxide (GO-alkyne) was first synthesized through a two-step amidation reaction of GO-COOH. Meanwhile, azide-terminated poly(dimethylaminoethyl methacrylate) (PDMAEMA-N3) was prepared via the atom-transfer radical-polymerization of dimethylaminoethyl methacrylate (DMAEMA). Subsequently, PDMAEMA-N3 was grafted onto the GO-alkyne through click chemistry to obtain PDMAEMA modified graphene oxide (GO-PDMAEMA). Finally, the tertiary amino groups of GO-PDMAEMA were quaternized by ethyl bromide to provide a quaternized poly(dimethylaminoethyl methacrylate) functionalized graphene oxide (GO-QPDMAEMA). Various characterization techniques, including Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, UV-vis spectrometry, ζ potential, Raman, contact angle analyses and field emission scanning electron microscope were used to ascertain the successful preparation of the quaternized GO-QPDMAEMA. Furthermore, antibacterial and antifouling activities of GO-QPDMAEMA were investigated via protein adsorption, as well as bacterial and cell adhesion studies. The results suggest that the GO-QPDMAEMA surface exhibited significant antibacterial and antifouling properties, compared with the GO-COOH and GO-PDMAEMA surfaces.
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Affiliation(s)
- Qin Tu
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Chang Tian
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Tongtong Ma
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Long Pang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jinyi Wang
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China; College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Jang LW, Lee J, Razu ME, Jensen EC, Kim J. Fabrication of PDMS Nanocomposite Materials and Nanostructures for Biomedical Nanosystems. IEEE Trans Nanobioscience 2015; 14:841-9. [DOI: 10.1109/tnb.2015.2509602] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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From 2D to 3D: novel nanostructured scaffolds to investigate signalling in reconstructed neuronal networks. Sci Rep 2015; 5:9562. [PMID: 25910072 PMCID: PMC5407555 DOI: 10.1038/srep09562] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 03/10/2015] [Indexed: 12/21/2022] Open
Abstract
To recreate in vitro 3D neuronal circuits will ultimately increase the relevance of results from cultured to whole-brain networks and will promote enabling technologies for neuro-engineering applications. Here we fabricate novel elastomeric scaffolds able to instruct 3D growth of living primary neurons. Such systems allow investigating the emerging activity, in terms of calcium signals, of small clusters of neurons as a function of the interplay between the 2D or 3D architectures and network dynamics. We report the ability of 3D geometry to improve functional organization and synchronization in small neuronal assemblies. We propose a mathematical modelling of network dynamics that supports such a result. Entrapping carbon nanotubes in the scaffolds remarkably boosted synaptic activity, thus allowing for the first time to exploit nanomaterial/cell interfacing in 3D growth support. Our 3D system represents a simple and reliable construct, able to improve the complexity of current tissue culture models.
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Zhou H, Zhao L, Zhang X. In-Channel Printing-Device Opening Assay for Micropatterning Multiple Cells and Gene Analysis. Anal Chem 2015; 87:2048-53. [DOI: 10.1021/ac504823s] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hao Zhou
- Research Center for Bioengineering
and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 10083, P. R. China
| | - Liang Zhao
- Research Center for Bioengineering
and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 10083, P. R. China
| | - Xueji Zhang
- Research Center for Bioengineering
and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 10083, P. R. China
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Tu Q, Wang JC, Liu R, Zhang Y, Xu J, Liu J, Yuan MS, Liu W, Wang J. Synthesis of polyethylene glycol- and sulfobetaine-conjugated zwitterionic poly(L-lactide) and assay of its antifouling properties. Colloids Surf B Biointerfaces 2012; 102:331-40. [PMID: 23044209 DOI: 10.1016/j.colsurfb.2012.08.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Revised: 08/07/2012] [Accepted: 08/16/2012] [Indexed: 10/27/2022]
Abstract
A new antifouling polyester monomethoxy-poly(ethylene glycol)-b-poly(L-lactide)-b-poly(sulfobetaine methacrylate) (MPEG-PLA-PSBMA) was obtained by ring-opening polymerization of L-lactide, and subsequent click chemistry to graft the azide end-functionalized poly(sulfobetaine methacrylate) (polySBMA) moieties onto the alkyne end-functionalized MPEG-PLA (MPEG-PLA-alkyne). The chemical structure of the polymer was characterized using (1)H nuclear magnetic resonance and Fourier-transform infrared spectroscopy, and its physical properties (including molecular weight, glass transition temperature, and melting point) were determined using gel permeation chromatography and differential scanning calorimetry. To investigate its hydrophilicity and stability, as well as its antifouling properties, the polymer was also prepared as a surface coating on glass substrates. The wettability and stability of this polyester was examined by contact angle measurements. Furthermore, its antifouling properties were investigated via protein adsorption, cell adhesion studies, and bacterial attachment assays. The results suggest that the prepared zwitterionic polyester exhibits durable wettability and stability, as well as significant antifouling properties. The new zwitterionic polyester MPEG-PLA-PSBMA could be developed as a promising antifouling material with extensive biomedical applications.
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Affiliation(s)
- Qin Tu
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China
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Gao D, Liu H, Jiang Y, Lin JM, Gao D, Liu H, Jiang Y. Recent developments in microfluidic devices for in vitro cell culture for cell-biology research. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2012.02.008] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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11
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Surface modification for PDMS-based microfluidic devices. Electrophoresis 2011; 33:89-104. [DOI: 10.1002/elps.201100482] [Citation(s) in RCA: 233] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Revised: 10/04/2011] [Accepted: 10/04/2011] [Indexed: 11/07/2022]
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12
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Zhang Z, Wang J, Tu Q, Nie N, Sha J, Liu W, Liu R, Zhang Y, Wang J. Surface modification of PDMS by surface-initiated atom transfer radical polymerization of water-soluble dendronized PEG methacrylate. Colloids Surf B Biointerfaces 2011; 88:85-92. [DOI: 10.1016/j.colsurfb.2011.06.019] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Revised: 06/08/2011] [Accepted: 06/08/2011] [Indexed: 11/15/2022]
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Guo ZX, Zhang M, Zhao LB, Guo SS, Zhao XZ. Generation of alginate gel particles with AuNPs layers by polydimethylsiloxan template. BIOMICROFLUIDICS 2011; 5:26502. [PMID: 21799724 PMCID: PMC3145243 DOI: 10.1063/1.3602119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2010] [Accepted: 05/15/2011] [Indexed: 05/31/2023]
Abstract
The authors report a feasible and simple microfluidic approach for synthesizing anisotropic gel particles based on template method. By filling arrays of microwells with alginate hydrogel and synthesizing gold nanoparticles (AuNPs) on the gel surface, anisotropic alginate gel particles with single side gold nanoparticles layers were produced in microwells on the polydimethylsiloxan template. AuNPs and the anisotropic feature were characterized using scanning electron microscopy and x-ray photoelectron spectrum analyses. The anisotropic particles made of biocompatible gels could be released from the template and collected with uniform sizes, which might have a powerful potential in biological detection and sensing.
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Affiliation(s)
- Zhi-Xiao Guo
- Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education and School of Physics and Technology, Wuhan University, Wuhan 430072, People's Republic of China
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Scott A, Gupta R, Kulkarni GU. A Simple Water-Based Synthesis of Au Nanoparticle/PDMS Composites for Water Purification and Targeted Drug Release. MACROMOL CHEM PHYS 2010. [DOI: 10.1002/macp.201000079] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Gou HL, Xu JJ, Xia XH, Chen HY. Air plasma assisting microcontact deprinting and printing for gold thin film and PDMS patterns. ACS APPLIED MATERIALS & INTERFACES 2010; 2:1324-1330. [PMID: 20402458 DOI: 10.1021/am100196z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In this paper, we present a simple method to fabricate gold film patterns and PDMS patterns by air plasma assisting microcontact deprinting and printing transfer approaches. Chemical gold plating is employed instead of conventional metal evaporation or sputtering to obtain perfect gold film both on flat and topographic PDMS chips, and complicated SAM precoating is replaced by simple air plasma treatment to activate both the surface of gold film and PDMS. In this way, large area patterns of conductive gold film and PDMS patterns could be easily obtained on the elastomeric PDMS substrate. Both the chemical plating gold film and transferred gold film were of good electrochemical properties and similar hydrophilicity with smooth and conductive surface, which made it potentially useful in microfluidic devices and electronics. The gold transfer mechanism is discussed in detail. For typical applications, a cell patterning chip based on the gold pattern was developed to imply the interfacial property, and dielectrophoresis control of live cells was carried out with the patterned gold as interdigital electrodes to show the conductivity.
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Affiliation(s)
- Hong-Lei Gou
- Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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