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Marinas IC, Ignat L, Maurușa IE, Gaboreanu MD, Adina C, Popa M, Chifiriuc MC, Angheloiu M, Georgescu M, Iacobescu A, Pircalabioru GG, Stan M, Pinteala M. Insights into the physico-chemical and biological characterization of sodium lignosulfonate - silver nanosystems designed for wound management. Heliyon 2024; 10:e26047. [PMID: 38384565 PMCID: PMC10878957 DOI: 10.1016/j.heliyon.2024.e26047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/23/2024] Open
Abstract
Chronic wounds represent one of the complications that might occur from the disruption of wound healing process. Recently, there has been a rise in interest in employing nanotechnology to develop novel strategies for accelerating wound healing. The aim of the present study was to use a green synthesis method to obtain AgNPs/NaLS systems useful for wounds management and perform an in-depth investigation of their behavior during and post-synthesis as well as of their biological properties. The colloids obtained from silver nanoparticles (AgNPs) and commercial sodium lignosulfonate (NaLS) in a single-pot aqueous procedure have been fully characterized by UV-Vis, FT-IR, DLS, TEM, XRD, and XPS to evaluate the synthesis efficiency and to provide new insights in the process of AgNPs formation and NaLS behavior in aqueous solutions. The effects of various concentrations of NaLS (0-16 mg/mL) and AgNO3 (0-20 mM) and of two different temperatures on AgNPs formation have been analyzed. Although the room temperature is feasible for AgNPs synthesis, the short mixing at 70 °C significantly increases the speed of nanoparticle formation and storage stability. In all experimental conditions AgNPs of 20-40 nm in size have been obtained. The antimicrobial activity assessed quantitatively on clinical and reference bacterial strains, both in suspension and biofilm growth state, revealed a broad antimicrobial spectrum, the most intensive inhibitory effect being noticed against Pseudomonas aeruginosa and Escherichia coli strains. The AgNP/NaLS enhanced the NO extracellular release, potentially contributing to the microbicidal and anti-adherence activity by protein oxidation. Both AgNP/NaLS and NaLS were non-hemolytic (hemolytic index<5%, 2.26 ± 0.13% hemolysis) and biocompatible (102.17 ± 3.43 % HaCaT cells viability). The presence of AgNPs increased the antioxidative activity and induced a significant cytotoxicity on non-melanoma skin cancer cells (62.86 ± 8.27% Cal-27 cells viability). Taken together, all these features suggest the multivalent potential of these colloids for the development of novel strategies for wound management, acting by preventing infection-associated complications and supporting the tissue regeneration.
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Affiliation(s)
- Ioana C. Marinas
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050095, Bucharest, Romania
- Research and Development Department of SC Sanimed International Impex SRL, 6 Bucharest -Giurgiu Street, 087040, Giurgiu, Romania
| | - Leonard Ignat
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley 41A, Iasi, 700487, Romania
| | - Ignat E. Maurușa
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley 41A, Iasi, 700487, Romania
| | - Madalina D. Gaboreanu
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050095, Bucharest, Romania
- Faculty of Biology, Department of Botany and Microbiology, University of Bucharest, 1-3 Portocalelor Street, 060101, Bucharest, Romania
| | - Coroabă Adina
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley 41A, Iasi, 700487, Romania
| | - Marcela Popa
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050095, Bucharest, Romania
- Faculty of Biology, Department of Botany and Microbiology, University of Bucharest, 1-3 Portocalelor Street, 060101, Bucharest, Romania
| | - Mariana C. Chifiriuc
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050095, Bucharest, Romania
- Faculty of Biology, Department of Botany and Microbiology, University of Bucharest, 1-3 Portocalelor Street, 060101, Bucharest, Romania
- Romanian Academy of Scientists, 54 Spl. Independentei St., District 5, 50085, Bucharest, Romania
- The Romanian Academy, 25, Calea Victoriei, Sector 1, District 1, 010071, Bucharest, Romania
| | - Marian Angheloiu
- Research and Development Department of SC Sanimed International Impex SRL, 6 Bucharest -Giurgiu Street, 087040, Giurgiu, Romania
| | - Mihaela Georgescu
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050095, Bucharest, Romania
| | - Alexandra Iacobescu
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley 41A, Iasi, 700487, Romania
| | - Gratiela Gradisteanu Pircalabioru
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050095, Bucharest, Romania
- Faculty of Biology, Department of Botany and Microbiology, University of Bucharest, 1-3 Portocalelor Street, 060101, Bucharest, Romania
| | - Miruna Stan
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050095, Bucharest, Romania
- Faculty of Biology, Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095, Bucharest, Romania
| | - Mariana Pinteala
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley 41A, Iasi, 700487, Romania
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Ismillayli N, Suprapto S, Santoso E, Nugraha RE, Holilah H, Bahruji H, Jalil AA, Hermanto D, Prasetyoko D. The role of pH-induced tautomerism of polyvinylpyrrolidone on the size, stability, and antioxidant and antibacterial activities of silver nanoparticles synthesized using microwave radiation. RSC Adv 2024; 14:4509-4517. [PMID: 38312717 PMCID: PMC10836328 DOI: 10.1039/d3ra07113h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 01/19/2024] [Indexed: 02/06/2024] Open
Abstract
Tautomerism alters the structure and properties of materials, which can be exploited to control their chemical and biological activities. The role of pH-induced tautomerism of polyvinylpyrrolidone (PVP) was determined by measuring the size, stability, and antioxidant and antibacterial properties of microwave synthesized-silver nanoparticles (AgNPs). TEM and XRD analyses confirmed the formation of face-centered cubic silver nanoparticles. PVP stabilized the AgNPs by interaction with the carbonyl or hydroxyl groups depending on the tautomerization under different pH conditions. At pH 4, PVP was stable in the keto tautomer, stabilizing Ag through electron donation of oxygen atoms in the carbonyl group, producing smaller AgNPs with a higher zeta potential. At pH 7 and 9, the enol tautomer PVP stabilized the AgNPs via oxygen atoms in the hydroxyl group, forming large nanoparticles. The keto form of PVP improved the stability and antioxidant and antibacterial properties of AgNPs compared with the enol form. This study also excluded the antioxidant contribution of PVP via hydrogen donation to free radicals. A facile method for controlling the size of AgNPs by adapting the pH-induced tautomerism of PVP that affects their stability and antioxidant and antibacterial activities is thus reported.
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Affiliation(s)
- Nurul Ismillayli
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember Keputih, Sukolilo Surabaya 60111 Indonesia
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Mataram Mataram 83125 Indonesia
| | - Suprapto Suprapto
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember Keputih, Sukolilo Surabaya 60111 Indonesia
| | - Eko Santoso
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember Keputih, Sukolilo Surabaya 60111 Indonesia
| | - Reva Edra Nugraha
- Department of Chemical Engineering, Faculty of Engineering, Universitas Pembangunan Nasional "Veteran" Jawa Timur Surabaya East Java 60294 Indonesia
| | - Holilah Holilah
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency of Indonesia (BRIN) Cibinong 16911 Indonesia
| | - Hasliza Bahruji
- Centre of Advanced Material and Energy Sciences, Universiti Brunei Darussalam Jalan Tungku Link BE 1410 Brunei
| | - Aishah Abdul Jalil
- Centre of Hydrogen Energy, Institute of Future Energy, Universiti Teknologi Malaysia 81310 Skudai Johor Bahru Johor Malaysia
- Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia 81310 Skudai Johor Bahru Johor Malaysia
| | - Dhony Hermanto
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Mataram Mataram 83125 Indonesia
| | - Didik Prasetyoko
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember Keputih, Sukolilo Surabaya 60111 Indonesia
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Zhao X, Wang M, Wang Y, Li J, He D, Zou Y, Zhang Y. Assembly of bimetallic (Au-Ag)FON composite films at liquid/solid interfaces and their tunable optical properties. Dalton Trans 2022; 51:8480-8490. [PMID: 35603965 DOI: 10.1039/d2dt00774f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The regular structure provided by two-dimensional (2D) structural colloidal crystals is widely accepted to provide an ideal template that ensures that plasmonic bimetallic composite nanostructures are uniform. Herein, we report an effective method for fabricating bimetallic Au-Ag composite films loaded on the surfaces of 2D polystyrene@polyacrylic acid (PS@PAA) colloidal crystals. PS@PAA particles coated with uniform Ag particle layers (AgFON) were produced by a simple and effective sputtering-deposition technique, after which the galvanic replacement (GR) reaction was used to produce a bimetallic (Au-Ag)FON composite film at the liquid/solid interface in aqueous HAuCl4. The morphology and relative contents of the bimetallic (Au-Ag)FON composite film can be regulated by changing the kinetic factors that control the GR reaction, including the concentration and pH of the HAuCl4 solution, and the reaction time. We demonstrated that the fabricated bimetallic (Au-Ag)FON composite has localized surface plasmon resonance (LSPR) properties that can be regulated by varying the composite structure and Ag/Au composition. On the one hand, the regular 2D colloidal crystal structure provides an ideal template for preparing Au-Ag composite films, which ensures that the optical signals of plasmonic Au-Ag composite films are reproducible. On the other hand, the synergy between Ag and Au in the bimetallic alloy composite film ensures stable and tunable LSPR performance. Furthermore, the prepared 2D ordered (Au-Ag)FON Au-Ag bimetallic material is expected to be used in sensing and catalysis applications.
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Affiliation(s)
- Xinyu Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Mingzhen Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Yingxue Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Jinqi Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Dongqing He
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Yongjin Zou
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Ying Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
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Solazzo M, Monaghan MG. Structural crystallisation of crosslinked 3D PEDOT:PSS anisotropic porous biomaterials to generate highly conductive platforms for tissue engineering applications. Biomater Sci 2021; 9:4317-4328. [PMID: 33683230 DOI: 10.1039/d0bm02123g] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
An emerging class of materials finding applications in biomaterials science - conductive polymers (CPs) - enables the achievement of smarter electrode coatings, piezoresistive components within biosensors, and scaffolds for tissue engineering. Despite their advances in recent years, there exist still some challenges which have yet to be addressed, such as long-term stability under physiological conditions, adequate long-term conductivity and optimal biocompatibility. Additionally, another hurdle to the use of these materials is their adaptation towards three-dimensional (3D) scaffolds, a feature that is usually achieved by virtue of applying CPs as a functionalised coating on a bulk material. Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is by far one of the most promising CPs in terms of its stability and conductivity, with the latter capable of being enhanced via a crystallisation treatment using sulphuric acid. In this work, we present a new generation of 3D electroconductive porous biomaterial scaffolds based on PEDOT:PSS crosslinked via glycidoxypropyltrimethoxysilane (GOPS) and subjected to sulphuric acid crystallisation. The resultant isotropic and anisotropic crystallised porous scaffolds exhibited, on an average, a 1000-fold increase in conductivity when compared with the untreated scaffolds. Moreover, we also document a precise control over the pore microarchitecture, size and anisotropy with high repeatability to achieve both isotropic and aligned scaffolds with mechanical and electrical anisotropy, while exhibiting adequate biocompatibility. These findings herald a new approach towards generating anisotropic porous biomaterial scaffolds with superior conductivity through a safe and scalable post-treatment.
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Affiliation(s)
- Matteo Solazzo
- Department of Mechanical, Manufacturing and Biomedical Engineering, Trinity College Dublin, Dublin 2, Ireland. and Trinity Centre for Biomedical Engineering, Trinity College Dublin, Dublin 2, Ireland
| | - Michael G Monaghan
- Department of Mechanical, Manufacturing and Biomedical Engineering, Trinity College Dublin, Dublin 2, Ireland. and Trinity Centre for Biomedical Engineering, Trinity College Dublin, Dublin 2, Ireland and Advance Materials and BioEngineering Research (AMBER) Centre at Trinity College Dublin and the Royal College of Surgeons in Ireland, Dublin 2, Ireland and CÚRAM, Centre for Research in Medical Devices, National University of Ireland, Galway, Newcastle Road, H91 W2TY Galway, Ireland
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5
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Hong SG, Im E, Kim DI, Jeong EJ, Kim J, Moon GD, Hyun DC. Magnetic polymer bowl for enhanced catalytic activity and recyclability. RSC Adv 2021; 11:13545-13555. [PMID: 35423839 PMCID: PMC8697504 DOI: 10.1039/d1ra00453k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 04/07/2021] [Indexed: 12/20/2022] Open
Abstract
This work introduces the fabrication of a magnetic polymer bowl for enhanced catalytic activity and recyclability, which involves the synthesis of silica-coated Fe3O4 magnetic clusters, seeded dispersion polymerization using the magnetic clusters, and transformation into a bowl-like structure via a phase separation route. The additional treatment with tannic acid (TA) on the bowls allows the in situ formation of silver nanoparticles (AgNPs) on their surfaces. The openness and larger surface area of the bowls, as compared with those of other structured particles, such as spheres and flowers, enable a considerably higher immobilization of AgNPs, thus leading to an excellent catalytic reduction for 4-nitrophenol (4-NP), methylene blue (MB), and rhodamine B. Furthermore, the strong magnetic response originating from the magnetic clusters inside the bowls endows a good magnetic recovery and an excellent reusability for the repeated reduction of the organic dyes without loss of catalytic activity.
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Affiliation(s)
- Sang Gi Hong
- Department of Polymer Science and Engineering, School of Applied Chemical Engineering, Polymeric Nano-materials Laboratory, Kyungpook National University Daegu 41566 South Korea
| | - Eunmi Im
- Dongnam Division, Korea Institute of Industrial Technology Busan 46938 Korea
| | - Da In Kim
- Department of Polymer Science and Engineering, School of Applied Chemical Engineering, Polymeric Nano-materials Laboratory, Kyungpook National University Daegu 41566 South Korea
| | - Eun Jin Jeong
- Dongnam Division, Korea Institute of Industrial Technology Busan 46938 Korea
| | - Jongbok Kim
- Department of Materials Science and Engineering, Kumoh National Institute of Technology Gumi Gyeongbuk 39177 Korea
- Department of Energy Engineering Convergence, Kumoh National Institute of Technology Gumi 39177 Korea
| | - Geon Dae Moon
- Dongnam Division, Korea Institute of Industrial Technology Busan 46938 Korea
| | - Dong Choon Hyun
- Department of Polymer Science and Engineering, School of Applied Chemical Engineering, Polymeric Nano-materials Laboratory, Kyungpook National University Daegu 41566 South Korea
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Ren L, Wu Z, Ma Y, Jian W, Xiong H, Zhou L. Preparation and growth-promoting effect of selenium nanoparticles capped by polysaccharide-protein complexes on tilapia. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:476-485. [PMID: 32643806 DOI: 10.1002/jsfa.10656] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 06/29/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Compared with traditional inorganic and organic selenium compounds, nano-selenium exhibited higher biological safety and nutritional potency. However, the biological efficacy of nano-selenium has not been comprehensively and accurately evaluated due to its dispersion instability. RESULTS In this study, novel selenium nanoparticles (SeNPs) with high dispersion stability were successfully prepared using a polysaccharide-protein complex (PSP) as the capping agent. This was isolated from abalone viscera. The average particle size and zeta potential of polysaccharide-protein complex selenium nanoparticles (PSP-SeNPs) were 63.33 nm, and -37.1 mV, respectively. The SeNPs were firmly capped by PSP through SeO and SeN bonds, as demonstrated by X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and transmission electron microscopy. Due to this capping, the dispersion of PSP-SeNPs remained stable for 12 months at 4 °C, as evidenced by visual inspection and multiple light scattering. Furthermore, PSP-SeNPs imparted an excellent growth-promoting effect on tilapia. The FBW, WGR, and SGR values of tilapia juveniles fed with PSP-SeNPs supplemented diets (0.5-4.5 mg/kg) were significantly higher than those of the control (P < 0.05). A weight gain rate of 4.1%-43.4% and specific growth rate of 0.15%-1.74% were obtained in tilapia during 45-day feeding. CONCLUSIONS The use of marine viscera polysaccharides is a promising, green method for the synthesis of selenium nanoparticles. There are good opportunities for the application of the synthesized PSP-SeNPs in the life sciences. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Lirong Ren
- Fujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Fisheries College of Jimei University, Xiamen, China
- Institute of Nutrition and Food Safety, Xiamen Medical College, Xiamen, China
| | - Zhencong Wu
- Fujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Fisheries College of Jimei University, Xiamen, China
| | - Ying Ma
- Fujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Fisheries College of Jimei University, Xiamen, China
| | - Wenjie Jian
- Institute of Nutrition and Food Safety, Xiamen Medical College, Xiamen, China
| | - Hejian Xiong
- College of Food and Biological Engineering, Jimei University, Xiamen, China
| | - Lina Zhou
- Fujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Fisheries College of Jimei University, Xiamen, China
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Chowdhury E, Rahaman MS, Sathitsuksanoh N, Grapperhaus CA, O'Toole MG. DNA-induced assembly of gold nanoprisms and polystyrene beads into 3D plasmonic SERS substrates. NANOTECHNOLOGY 2021; 32:025506. [PMID: 32987380 DOI: 10.1088/1361-6528/abbc22] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The utilization of nanoparticle-polymer bead hybrid nanostructures as a SERS substrate depends on the control of the deposition, density, and distribution of nanoparticles on the bead surface. Here we demonstrate the fabrication of a large area SERS substate via a two- step DNA mediated assembly of gold nanoprisms and polystyrene (PS) beads into a large ensemble of beads that are densely coated with nanoprisms. First, nanoprisms are loaded on PS beads through DNA hybridization. The close packed arrangement of anisotropic nanoprisms in different orientations on a bead surface results in a plasmonic substrate with a variable nanogap size ranging 1-20 nm. Nanoprisms-coated beads are then assembled into a large stack or aggregate of beads using a DNA-induced crystallization approach. Each aggregate consists of 20-50 nanoprisms-coated beads, leading to the formation a large area of three-dimensional SERS substrate with a high-density of hot spots for SERS enhancement. An excellent enhancement factor (EF) of [Formula: see text] and a very high detection sensitivity (up to 10-10 M) are observed for the analysis of a probe molecule (Methylene blue) using the SERS substrate.
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Affiliation(s)
- Emtias Chowdhury
- Department of Chemistry, University of Louisville, Louisville, Kentucky, 40292, United States of America
| | - Mohammad Shahinur Rahaman
- Department of Chemical Engineering, University of Louisville, Louisville, Kentucky, 40292, United States of America
| | - Noppadon Sathitsuksanoh
- Department of Chemical Engineering, University of Louisville, Louisville, Kentucky, 40292, United States of America
| | - Craig A Grapperhaus
- Department of Chemistry, University of Louisville, Louisville, Kentucky, 40292, United States of America
| | - Martin G O'Toole
- Department of Bioengineering, University of Louisville, Louisville, Kentucky, 40292, United States of America
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Swathy T, Jinish Antony M. Tangled silver nanoparticles embedded polythiophene-functionalized multiwalled carbon nanotube nanocomposites with remarkable electrical and thermal properties. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122171] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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10
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Du L, Wang Y, Zhang W, Shen C, Luo G. Preparation of nonaqueous silver nanosuspensions by in situ dispersion of the surface-modified nanoparticles. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.04.044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Du L, Wang YJ, Wang K, Shen C, Luo GS. In situ dispersion of oil-based Ag nanocolloids by microdroplet coalescence and their applications in SERS detection. RSC Adv 2016. [DOI: 10.1039/c6ra05269j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Monodispersity and size uniformity of the nanoparticles coated on film-like nanosensors are critical for detection efficiency.
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Affiliation(s)
- L. Du
- The State Key Laboratory of Chemical Resource Engineering
- Beijing Key Laboratory of Membrane Science and Technology
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Y. J. Wang
- The State Key Laboratory of Chemical Engineering
- Department of Chemical Engineering
- Tsinghua University
- Beijing 100084
- China
| | - K. Wang
- The State Key Laboratory of Chemical Engineering
- Department of Chemical Engineering
- Tsinghua University
- Beijing 100084
- China
| | - C. Shen
- Beijing Key Laboratory of Bioprocess
- College of Life Science and Technology
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - G. S. Luo
- The State Key Laboratory of Chemical Engineering
- Department of Chemical Engineering
- Tsinghua University
- Beijing 100084
- China
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12
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Zhang N, Guo B, Liu H, Liu P, Liu G, Cheng J. Preparation and characterization of nano-sized PS@Pd core–shell architectures with a one-pot method. RSC Adv 2016. [DOI: 10.1039/c5ra13075a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Monodispersed and nano-sized Pd (palladium) coated PS (polystyrene) core–shell architectures have been prepared successfully by a facile, green and fast one-pot method.
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Affiliation(s)
- Nianchun Zhang
- College of Material Science and Engineering
- South China University of Technology
- Guangzhou 510641
- P. R. China
| | - Bin Guo
- Microelectronics
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Hong Liu
- College of Material Science and Engineering
- South China University of Technology
- Guangzhou 510641
- P. R. China
| | - Ping Liu
- College of Material Science and Engineering
- South China University of Technology
- Guangzhou 510641
- P. R. China
| | - Guihua Liu
- Shenzhen Center for Disease Control and Prevention
- Shenzhen 518020
- P. R. China
| | - Jinquan Cheng
- Shenzhen Center for Disease Control and Prevention
- Shenzhen 518020
- P. R. China
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Preparation, Structure, and Properties of Hybrid Polymer Composites Containing Silver Clusters and Nanoparticles. THEOR EXP CHEM+ 2015. [DOI: 10.1007/s11237-015-9401-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Woo H, Kim JW, Kim M, Park S, Park KH. Au nanoparticles supported on magnetically separable Fe2O3–graphene oxide hybrid nanosheets for the catalytic reduction of 4-nitrophenol. RSC Adv 2015. [DOI: 10.1039/c4ra13989e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
A one-pot hydrothermal synthesis approach was developed to prepare FeSO4·(H2O)–graphene oxide (GO) nanosheets. Au nanoparticles were immobilized onto this support, giving Au/Fe2O3–GO nanocomposites.
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Affiliation(s)
- Hyunje Woo
- Department of Chemistry and Chemistry Institute for Functional Materials
- Pusan National University
- Busan 609-735
- Korea
| | - Ji Woong Kim
- Department of Physics
- Pusan National University
- Busan 609-735
- Korea
| | - Miran Kim
- Department of Chemistry and Chemistry Institute for Functional Materials
- Pusan National University
- Busan 609-735
- Korea
| | - Sungkyun Park
- Department of Physics
- Pusan National University
- Busan 609-735
- Korea
| | - Kang Hyun Park
- Department of Chemistry and Chemistry Institute for Functional Materials
- Pusan National University
- Busan 609-735
- Korea
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Zeng S, Baillargeat D, Ho HP, Yong KT. Nanomaterials enhanced surface plasmon resonance for biological and chemical sensing applications. Chem Soc Rev 2014; 43:3426-52. [PMID: 24549396 DOI: 10.1039/c3cs60479a] [Citation(s) in RCA: 524] [Impact Index Per Article: 52.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The main challenge for all electrical, mechanical and optical sensors is to detect low molecular weight (less than 400 Da) chemical and biological analytes under extremely dilute conditions. Surface plasmon resonance sensors are the most commonly used optical sensors due to their unique ability for real-time monitoring the molecular binding events. However, their sensitivities are insufficient to detect trace amounts of small molecular weight molecules such as cancer biomarkers, hormones, antibiotics, insecticides, and explosive materials which are respectively important for early-stage disease diagnosis, food quality control, environmental monitoring, and homeland security protection. With the rapid development of nanotechnology in the past few years, nanomaterials-enhanced surface plasmon resonance sensors have been developed and used as effective tools to sense hard-to-detect molecules within the concentration range between pmol and amol. In this review article, we reviewed and discussed the latest trend and challenges in engineering and applications of nanomaterials-enhanced surface plasmon resonance sensors (e.g., metallic nanoparticles, magnetic nanoparticles, carbon-based nanomaterials, latex nanoparticles and liposome nanoparticles) for detecting "hard-to-identify" biological and chemical analytes. Such information will be viable in terms of providing a useful platform for designing future ultrasensitive plasmonic nanosensors.
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Affiliation(s)
- Shuwen Zeng
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
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Sardar D, Naskar B, Sanyal A, Moulik SP, Bala T. Organic–inorganic hybrid: a novel template for synthesis of nanostructured Ag. RSC Adv 2014. [DOI: 10.1039/c3ra43378a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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