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Martins da Silva Filho P, Higor Rocha Mariano P, Lopes Andrade A, Barros Arrais Cruz Lopes J, de Azevedo Pinheiro A, Itala Geronimo de Azevedo M, Carneiro de Medeiros S, Alves de Vasconcelos M, Gonçalvez da Cruz Fonseca S, Barbosa Grangeiro T, Gonzaga de França Lopes L, Henrique Silva Sousa E, Holanda Teixeira E, Longhinotti E. Antibacterial and antifungal action of CTAB-containing silica nanoparticles against human pathogens. Int J Pharm 2023; 641:123074. [PMID: 37230370 DOI: 10.1016/j.ijpharm.2023.123074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 04/16/2023] [Accepted: 05/22/2023] [Indexed: 05/27/2023]
Abstract
New antibiotic agents are urgently needed worldwide to combat the increasing tolerance and resistance of pathogenic fungi and bacteria to current antimicrobials. Here, we looked at the antibacterial and antifungal effects of minor quantities of cetyltrimethylammonium bromide (CTAB), ca. 93.8 mg g-1, on silica nanoparticles (MPSi-CTAB). Our results show that MPSi-CTAB exhibits antimicrobial activity against Methicillin-resistant Staphylococcus aureus strain (S. aureus ATCC 700698) with MIC and MBC of 0.625 mg mL-1 and 1.25 mg mL-1, respectively. Additionally, for Staphylococcus epidermidis ATCC 35984, MPSi-CTAB reduces MIC and MBC by 99.99% of viable cells on the biofilm. Furthermore, when combined with ampicillin or tetracycline, MPSi-CTAB exhibits reduced MIC values by 32- and 16-folds, respectively. MPSi-CTAB also exhibited in vitro antifungal activity against reference strains of Candida, with MIC values ranging from 0.0625 to 0.5 mg mL-1. This nanomaterial has low cytotoxicity in human fibroblasts, where over 80% of cells remained viable at 0.31 mg mL-1 of MPSi-CTAB. Finally, we developed a gel formulation of MPSi-CTAB, which inhibited in vitro the growth of Staphylococcus and Candida strains. Overall, these results support the efficacy of MPSi-CTAB with potential application in the treatment and/or prevention of infections caused by methicillin-resistant Staphylococcus and/or Candida species.
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Affiliation(s)
- Pedro Martins da Silva Filho
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará 60440-900 Fortaleza - CE, Brazil; Laboratório de Bioinorgânica, Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, PO Box 12200, Campus do Pici s/n, 60440-900, Fortaleza - CE, Brazil.
| | - Pedro Higor Rocha Mariano
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará 60440-900 Fortaleza - CE, Brazil
| | - Alexandre Lopes Andrade
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP 60430-270, Fortaleza - CE, Brazil
| | - Jessica Barros Arrais Cruz Lopes
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP 60430-270, Fortaleza - CE, Brazil
| | - Aryane de Azevedo Pinheiro
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP 60430-270, Fortaleza - CE, Brazil
| | | | - Suelen Carneiro de Medeiros
- Departamento de Biologia, Universidade Federal do Ceará, Campus do Pici s/n, 60440-900, Fortaleza - CE, Brazil
| | - Mayron Alves de Vasconcelos
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP 60430-270, Fortaleza - CE, Brazil; Departamento de Ciências Biológicas, Faculdade de Ciências Exatas e Naturais, Universidade do Estado do Rio Grande do Norte, 59610-090, Mossoró - RN, Brazil; Universidade do Estado de Minas Gerais, Unidade de Divinópolis, 35501-170, Divinópolis - MG, Brazil
| | | | - Thalles Barbosa Grangeiro
- Departamento de Biologia, Universidade Federal do Ceará, Campus do Pici s/n, 60440-900, Fortaleza - CE, Brazil
| | - Luiz Gonzaga de França Lopes
- Laboratório de Bioinorgânica, Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, PO Box 12200, Campus do Pici s/n, 60440-900, Fortaleza - CE, Brazil
| | - Eduardo Henrique Silva Sousa
- Laboratório de Bioinorgânica, Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, PO Box 12200, Campus do Pici s/n, 60440-900, Fortaleza - CE, Brazil.
| | - Edson Holanda Teixeira
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP 60430-270, Fortaleza - CE, Brazil
| | - Elisane Longhinotti
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará 60440-900 Fortaleza - CE, Brazil.
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2
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Kitaw SL, Birhan YS, Tsai HC. Plasmonic surface-enhanced Raman scattering nano-substrates for detection of anionic environmental contaminants: Current progress and future perspectives. ENVIRONMENTAL RESEARCH 2023; 221:115247. [PMID: 36640935 DOI: 10.1016/j.envres.2023.115247] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/26/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
Surface-enhanced Raman scattering spectroscopy (SERS) is a powerful technique of vibrational spectroscopy based on the inelastic scattering of incident photons by molecular species. It has unique properties such as ultra-sensitivity, selectivity, non-destructivity, speed, and fingerprinting properties for analytical and sensing applications. This enables SERS to be widely used in real-world sample analysis and basic plasmonic mechanistic studies. However, the desirable properties of SERS are compromised by the high cost and low reproducibility of the signals. The development of multifunctional, stable and reusable nano-engineered SERS substrates is a viable solution to circumvent these drawbacks. Recently, plasmonic SERS active nano-substrates with various morphologies have attracted the attention of researchers due to promising properties such as the formation of dense hot spots, additional stability, tunable and controlled morphology, and surface functionalization. This comprehensive review focused on the current advances in the field of SERS active nanosubstrates suitable for the detection and quantification of anionic environmental pollutants. The common fabrication methods, including the techniques for morphological adjustments and surface modification, substrate categories, and the design of nanotechnologically fabricated plasmonic SERS substrates for anion detection are systematically presented. Here, the need for the design, synthesis, and functionalization of SERS nano-substrates for anions of great environmental importance is explained in detail. In addition, the broad categories of SERS nano-substrates, namely colloid-based SERS substrates and solid-support SERS substrates are discussed. Moreover, a brief discussion of SERS detection of certain anionic pollutants in the environment is presented. Finally, the prospects in the fabrication and commercialization of pilot-scale handheld SERS sensors and the construction of smart nanosubstrates integrated with novel amplifying materials for the detection of anions of environmental and health concern are proposed.
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Affiliation(s)
- Sintayehu Leshe Kitaw
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, 106, Taiwan, ROC
| | - Yihenew Simegniew Birhan
- Department of Chemistry, College of Natural and Computational Sciences, Debre Markos University, P.O. Box 269, Debre Markos, Ethiopia
| | - Hsieh-Chih Tsai
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, 106, Taiwan, ROC; Advanced Membrane Materials Center, National Taiwan University of Science and Technology, Taipei, 106, Taiwan, ROC; R&D Center for Membrane Technology, Chung Yuan Christian University, Chungli, Taoyuan, 320, Taiwan, ROC.
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3
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Singh B, Kumari A, Sharma D, Dhiman A, Kumar S. Fabricating gum polysaccharides based nano-composites for drug delivery uses via sustainable green approach. Int J Biol Macromol 2023; 235:123856. [PMID: 36870665 DOI: 10.1016/j.ijbiomac.2023.123856] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 02/10/2023] [Accepted: 02/24/2023] [Indexed: 03/06/2023]
Abstract
Recent advancements in development of natural polymer nono-composites led to exploration of potential of gum acacia (GA) and tragacanth gum (TG) for design of silver nanoparticles (AgNPs) impregnated grafted copolymers via green approach for use in drug delivery (DD). The formation of copolymers was confirmed by UV-Vis spectroscopy, TEM, SEM, AFM, XPS, XRD, FTIR,TGA and DSC. UV-Vis spectra indicated the formation of AgNPs using GA as reducing agent. TEM, SEM, XPS and XRD revealed impregnation of AgNPs inside the copolymeric network hydrogels. TGA inferred thermal stability of polymer enhanced by grafting and incorporation of AgNPs. The non-Fickian diffusion of antibiotic drug meropenem was revealed from drug encapsulated GA-TG-(AgNPs)-cl-poly(AAm) network which were also pH responsive and release profile was fitted in Korsmeyer-Peppas kinetic model. Sustained release was due to polymer-drug interaction. The polymer-blood interaction demonstrated biocompatible characteristics of polymer. Mucoadhesive property exhibited by copolymers because of supra-molecular interactions. Antimicrobial characteristics were shown by copolymers against bacteria S. flexneri, P. auroginosa, and B. cereus.
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Affiliation(s)
- Baljit Singh
- Department of Chemistry, Himachal Pradesh University, Shimla 171005, India.
| | - Ankita Kumari
- Department of Chemistry, Himachal Pradesh University, Shimla 171005, India
| | - Diwanshi Sharma
- Department of Chemistry, Himachal Pradesh University, Shimla 171005, India
| | - Abhishek Dhiman
- Mahatma Gandhi Government Engineering College Kotla, Jeori, Rampur, Himachal Pradesh 172101, India
| | - Sushil Kumar
- Department of Chemistry, Himachal Pradesh University, Shimla 171005, India
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4
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Improving the colloidal stability of PEGylated BaTiO3 nanoparticles with surfactants. Chem Phys 2023. [DOI: 10.1016/j.chemphys.2022.111701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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5
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Zhang W, Wang Y, Guo J, Yu Y, Duan W, Yang Y, Bai X, Liu B. Optimization of plasmonic metal structures for improving the hydrogen production efficiency of metal-organic frameworks. NANOSCALE 2021; 13:10807-10815. [PMID: 34110350 DOI: 10.1039/d1nr01197a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The introduction of plasmonic metals of gold (Au) nanoparticles onto metal-organic frameworks (MOFs) has been testified as an efficient approach to boost the H2 evolution ability because the excited Au particles can generate hot electrons that can then be injected into MOFs to inhibit the recombination of charges. Generally, Au particles possess two modes of polarization, which are transverse and longitudinal polarizations. However, which of the two modes is more efficient remains unclear and is yet to be disclosed. Herein, we report a strategy of finely controlling the transverse and longitudinal polarizations by gradually reducing the length, without changing the width of Au rods, and then combining with MOF Pt@MIL-125 to construct Pt@MIL-125/Au Schottky junctions, for investigating the polarization mode effects. The results indicate that with the reduction in the length of Au rods from 67 nm to 38 nm, the transverse polarization will be increased, which can lead to a significant enhancement in the electron-hole separation efficiency and H2 generation activity. When Au is in spherical shape, the transverse polarization effect reaches the highest level, thereby achieving the highest H2 production rate of 265.1 μmol g-1 h, which is 1.6 times more than that of 67 nm Au rods. The enhancement can be attributed to the significant accelerated electron transfer rate induced by transverse polarization and evidenced by ESR analysis. The results indicate that the transverse polarization is more efficient for hot electron injection and highlight that the Au sphere is a more appropriate candidate for producing the maximum SPR effect during photocatalysis.
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Affiliation(s)
- Wei Zhang
- Department of Chemistry, School of Science, Beijing Jiaotong University, Beijing 100044, People's Republic of China.
| | - Yang Wang
- Department of Chemistry, School of Science, Beijing Jiaotong University, Beijing 100044, People's Republic of China. and College of Materials Science and Opto-electronic Technology, CAS Center for Excellence in Topological Quantum Computation & Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Yanqi Lake, Huairou District, Beijing 101408, People's Republic of China
| | - Jianping Guo
- State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing Building Materials Academy of Science Research, Beijing 100041, People's Republic of China
| | - Yu Yu
- Department of Chemistry, School of Science, Beijing Jiaotong University, Beijing 100044, People's Republic of China.
| | - Wubiao Duan
- Department of Chemistry, School of Science, Beijing Jiaotong University, Beijing 100044, People's Republic of China.
| | - Yang Yang
- Department of Chemistry, School of Science, Beijing Jiaotong University, Beijing 100044, People's Republic of China.
| | - Xue Bai
- Department of Chemistry, School of Science, Beijing Jiaotong University, Beijing 100044, People's Republic of China.
| | - Bo Liu
- Department of Chemistry, School of Science, Beijing Jiaotong University, Beijing 100044, People's Republic of China.
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6
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Badr EA, Shafek S, Hefni H, Elsharif AM, Alanezi AA, Shaban SM, Kim DH. Synthesis of Schiff base-based cationic Gemini surfactants and evaluation of their effect on in-situ AgNPs preparation: Structure, catalytic, and biological activity study. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115342] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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7
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Theranostic Nanoplatforms of Thiolated Reduced Graphene Oxide Nanosheets and Gold Nanoparticles. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10165529] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In this study, graphene oxide (GO) and reduced-thiolated GO (rGOSH) were used as 2D substrate to fabricate nanocomposites with nanoparticles of gold nanospheres (AuNS) or nanorods (AuNR), via in situ reduction of the metal salt precursor and seed-mediated growth processes. The plasmonic sensing capability of the gold-decorated nanosheets were scrutinized by UV-visible (UV-VIS) spectroscopy. Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), thermogravimetric analyses (TGA), and atomic force microscopy (AFM) were performed in order to prove the actual reduction that occurred concomitantly with the thiolation of GO, the increase in the hydrophobic character as well as the size, and preferential gathering of the gold nanoparticles onto the nanosheet substrates, respectively. Moreover, the theoretical electronic and infrared absorption (UV-VIS and IR) spectra were calculated within a time-dependent approach of density functional theory (DFT). Eventually, in vitro cellular experiments on human neuroblastoma cells (SH-SY5Y line) were carried out in order to evaluate the nanotoxicity of the nanocomposites by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide tetrazolium reduction (MTT) colorimetric assay. Results pointed out the promising potential of these hybrids as plasmonic theranostic platforms with different hydrophilic or hydrophobic features as well as cytotoxic effects against cancer cells.
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8
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Darkwah WK, Sandrine MKC, Adormaa BB, Teye GK, Puplampu JB. Solar light harvest: modified d-block metals in photocatalysis. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02435b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
With solar light, modified d-block metal photocatalysts are useful in areas where electricity is insufficient, with its chemical stability during the photocatalytic process, and its low-cost and nontoxicity.
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Affiliation(s)
- Williams Kweku Darkwah
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- Environmental Engineering Department
- College of Environment
- Hohai University
| | - Masso Kody Christelle Sandrine
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- Environmental Engineering Department
- College of Environment
- Hohai University
| | - Buanya Beryl Adormaa
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- Environmental Engineering Department
- College of Environment
- Hohai University
| | - Godfred Kwesi Teye
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes
- Ministry of Education
- Environmental Engineering Department
- College of Environment
- Hohai University
| | - Joshua Buer Puplampu
- Department of Biochemistry
- School of Biological Sciences
- University of Cape Coast
- Cape Coast
- Ghana
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9
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Kumawat N, Singh M. Trisurfactantomethylol melamines: Synthesis, structural characterization and physicochemical properties of aqueous systems. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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10
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Highly fluorescence PS@CdTe multilayers core-shell microspheres: Synthesis, structure, luminescence. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2019.06.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Chen X, Tang M, Liu Y, Huang J, Liu Z, Tian H, Zheng Y, de la Chapelle ML, Zhang Y, Fu W. Surface-enhanced Raman scattering method for the identification of methicillin-resistant Staphylococcus aureus using positively charged silver nanoparticles. Mikrochim Acta 2019; 186:102. [PMID: 30637528 DOI: 10.1007/s00604-018-3150-6] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 12/06/2018] [Indexed: 02/07/2023]
Abstract
The article describes a SERS-based method for diagnosis of bacterial infections. Positively charged silver nanoparticles (AgNPs+) were employed for identification of methicillin-resistant Staphylococcus aureus (MRSA). It is found that AgNPs+ undergo self-assembly on the surface of bacteria via electrostatic aggregation. The assembled AgNPs+ are excellent SERS substrates. To prove the capability of SERS to differentiate between S. aureus and other microorganisms, six standard strains including S. aureus 29213, S. aureus 25923, C. albicans, B. cereus, E. coli, and P. aeruginosa were tested. To further demonstrate its applicability for the identification of MRSA in clinical samples, 52 methicillin-sensitive S. aureus (MSSA) isolates and 215 MRSA isolates were detected by SERS. The total measurement time (include incubation) is 45 min when using a 3 μL sample. The method gives a strongly enhanced Raman signal (at 730 cm-1 and 1325 cm-1) with good reproducibility and repeatability. It was successfully applied to the discrimination of the six strain microorganisms. The typical Raman peaks of S. aureus at 730, 1154, 1325, and 1457 cm-1 were observed, which were assigned to the bacterial cell wall components (730 cm-1- adenine, glycosidic ring mode, 1154 cm-1- unsaturated fatty acid, 1325 cm-1- adenine, polyadenine, and 1457 cm-1 for -COO- stretching). S. aureus was completely separated from other species by partial least squares discriminant analysis (PLS-DA). Moreover, 52 MSSA isolates and 215 MRSA isolates from clinical samples were identified by PLS-DA. The accuracy was almost 100% when compared to the standard broth microdilution method. A classification based on latent structure discriminant analysis provided spectral variability directly. Conceivably, the method offers a potent tool for the identification of bacteria and antibiotics resistance, and for studies on antibiotic-resistance in general. Graphical abstract Schematic of the surface-enhanced Raman scattering (SERS) measurements on Staphylococcus aureus (S. aureus) using positively charged silver nanoparticles (AgNPs+). AgNPs+ are adsorbed on the bacterial cell wall by electrostatic attraction. SERS spectra were analyzed by PLS-DA for the identification of Staphylococcus aureus (MRSA) and methicillin-resistant Staphylococcus aureus (MSSA). MRSA isolates were divided into four groups, including R1, R2, R3, and R4. MSSA just includes group S.
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Affiliation(s)
- Xueping Chen
- Department of Laboratory Medicine, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Meiqiong Tang
- Department of Laboratory Medicine, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Yu Liu
- Department of Laboratory Medicine, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Jiaoqi Huang
- Department of Laboratory Medicine, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Zhiyong Liu
- Department of Laboratory Medicine, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Huiyan Tian
- Department of Laboratory Medicine, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Yuting Zheng
- Department of Laboratory Medicine, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China
| | - Marc Lamy de la Chapelle
- Institut des Molécules et Matériaux du Mans (IMMM - UMR CNRS 6283), Le Mans Université, Avenue Olivier Messiaen, 72085, Le Mans cedex 9, France
| | - Yang Zhang
- Department of Laboratory Medicine, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China. .,Department of Laboratory Medicine, Chongqing General Hospital, Chongqing, 400000, China.
| | - Weiling Fu
- Department of Laboratory Medicine, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China.
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12
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Skoglund S, Blomberg E, Wallinder IO, Grillo I, Pedersen JS, Bergström LM. A novel explanation for the enhanced colloidal stability of silver nanoparticles in the presence of an oppositely charged surfactant. Phys Chem Chem Phys 2018; 19:28037-28043. [PMID: 28994441 DOI: 10.1039/c7cp04662f] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structural behavior in aqueous mixtures of negatively charged silver nanoparticles (Ag NPs) together with the cationic surfactants cetyltrimethylammonium bromide (CTAB) and dodecyltrimethylammonium chloride (DTAC), respectively, has been investigated using SANS and SAXS. From our SANS data analysis we are able to conclude that the surfactants self-assemble into micellar clusters surrounding the Ag NPs. We are able to quantify our results by means of fitting experimental SANS data with a model based on cluster formation of micelles with very good agreement. Based on our experimental results, we propose a novel mechanism for the stabilization of negatively charged Ag NPs in a solution of positively charged surfactants in which cluster formation of micelles in the vicinity of the particles prevents the particles from aggregating. Complementary SAXS and DLS measurements further support this novel way of explaining stabilization of small hydrophilic nanoparticles in surfactant-containing solutions.
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Affiliation(s)
- Sara Skoglund
- KTH Royal Institute of Technology, School of Chemical Science and Engineering, Surface and Corrosion Science, SE-100 44 Stockholm, Sweden.
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13
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Studying the corrosion inhibition of some prepared nonionic surfactants based on 3-(4-hydroxyphenyl) propanoic acid and estimating the influence of silver nanoparticles on the surface parameters. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.11.052] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Shaban SM, Abd-Elaal AA. Studying the silver nanoparticles influence on thermodynamic behavior and antimicrobial activities of novel amide Gemini cationic surfactants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:871-885. [PMID: 28482602 DOI: 10.1016/j.msec.2017.03.185] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Revised: 12/30/2016] [Accepted: 03/21/2017] [Indexed: 11/25/2022]
Abstract
Three novels amide Gemini cationic surfactants with various alkyl chains and their silver nanohybrid with silver nanoparticles were synthesized and a confirmation study for surfactant and their nanoparticles formation has been established using IR, 1HNMR, TEM and UV-Vis spectroscopy. The surface-active properties of these surfactants and their nanoform were investigated through surface tension and electrical conductivity measurements and a comparative study has been established. The thermodynamic parameters of micellization and adsorption were assessed at temperatures range from 25 to 65°C. The effect of silver particles on the surface behavior of the synthesized surfactant has been discussed. The aggregation behavior of silver nanoparticles with these synthesized Gemini surfactants in water were investigated using dynamic light scattering and transmission electron microscopy. Furthermore, the antimicrobial activities of these synthesized amide Gemini surfactants and their nanostructure with silver against both Gram positive and Gram negative bacteria were also investigated.
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Affiliation(s)
- Samy M Shaban
- Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt.
| | - Ali A Abd-Elaal
- Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt
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15
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Lessan F, Karimi M. Selective water-permeable channels induced by polystyrene brushes within hairy nanocellulose/cellulose acetate membrane. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- F. Lessan
- Department of Textile Engineering; Amirkabir University of Technology; Hafez Avenue 15914 Tehran Iran
| | - M. Karimi
- Department of Textile Engineering; Amirkabir University of Technology; Hafez Avenue 15914 Tehran Iran
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16
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Ding S, Xiong X, Liu X, Shi Y, Jiang Q, Hu J. Synthesis and characterization of single-crystalline Bi2O2SiO3 nanosheets with exposed {001} facets. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01291h] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Bismuth oxide silicate (Bi2O2SiO3) single-crystalline nanosheets with exposed {001} facets were synthesized for the first time via a facile one-step CTAB-assisted hydrothermal method in the presence of NaOH.
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Affiliation(s)
- Shuoping Ding
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan
- P. R. China
| | - Xuyang Xiong
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan
- P. R. China
| | - Xiufan Liu
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan
- P. R. China
| | - Yiqiu Shi
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan
- P. R. China
| | - Qingqing Jiang
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan
- P. R. China
| | - Juncheng Hu
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan
- P. R. China
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
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17
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Zhang S, Tang Y, Vlahovic B. A Review on Preparation and Applications of Silver-Containing Nanofibers. NANOSCALE RESEARCH LETTERS 2016; 11:80. [PMID: 26858162 PMCID: PMC4747935 DOI: 10.1186/s11671-016-1286-z] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 01/28/2016] [Indexed: 06/02/2023]
Abstract
Silver-containing nanofibers are of great interest recently because of the dual benefits from silver particles and nanofibers. Silver nanoparticles are extensively used for biomedical applications due to the antibacterial and antiviral properties. In addition, silver nanoparticles can excite resonance effect of light trapping when pairing with dielectric materials, such as polymer. Comparing to the traditional fabrics, polymer nanofibers can provide larger number of reaction sites and higher permeability contributed to their high surface-to-volume ratio and high porosity. By embedding the silver nanoparticles into polymer nanofiber matrix, the composite is promising candidates for biomaterials, photovoltaic materials, and catalysts. This work demonstrates and evaluates the methods employed to synthesize silver nanoparticle-containing nanofibers and their potential applications.
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Affiliation(s)
- Shu Zhang
- Department of Mathematics and Physics, North Carolina Central University, Durham, NC, 27707, USA
| | - Yongan Tang
- Department of Mathematics and Physics, North Carolina Central University, Durham, NC, 27707, USA.
| | - Branislav Vlahovic
- Department of Mathematics and Physics, North Carolina Central University, Durham, NC, 27707, USA
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18
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Kaur G, Kumar S, Kant R, Bhanjana G, Dilbaghi N, Guru SK, Bhushan S, Jaglan S. One-step synthesis of silver metallosurfactant as an efficient antibacterial and anticancer material. RSC Adv 2016. [DOI: 10.1039/c6ra09677h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
A silver based double chained metallosurfactant was synthesized and characterized with various analytical methods. Along with the self aggregation behavior, DNA binding abilities of metallomicelles and antimicrobial and anticancer activities were evaluated.
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Affiliation(s)
- Gurpreet Kaur
- Department of Chemistry and Centre of Advanced Studies in Chemistry
- Panjab University
- Chandigarh 160 014
- India
| | - Sandeep Kumar
- Department of Bio and Nano Technology
- Guru Jambheshwar University of Science & Technology
- Hisar 125 001
- India
| | - Ravi Kant
- Department of Bio and Nano Technology
- Guru Jambheshwar University of Science & Technology
- Hisar 125 001
- India
| | - Gaurav Bhanjana
- Department of Bio and Nano Technology
- Guru Jambheshwar University of Science & Technology
- Hisar 125 001
- India
| | - Neeraj Dilbaghi
- Department of Bio and Nano Technology
- Guru Jambheshwar University of Science & Technology
- Hisar 125 001
- India
| | - Santosh Kumar Guru
- Division of Cancer Pharmocolgy
- Indian Institute of Integrative Medicine
- India
| | - Shashi Bhushan
- Division of Cancer Pharmocolgy
- Indian Institute of Integrative Medicine
- India
| | - Sundeep Jaglan
- Quality Control & Quality Assurance Division
- CSIR-Indian Institute of Integrative Medicine
- India
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19
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Oćwieja M, Adamczyk Z, Morga M, Kubiak K. Silver particle monolayers — Formation, stability, applications. Adv Colloid Interface Sci 2015; 222:530-63. [PMID: 25169969 DOI: 10.1016/j.cis.2014.07.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Revised: 06/30/2014] [Accepted: 07/01/2014] [Indexed: 01/23/2023]
Abstract
The formation of silver particle monolayers at solid substrates in self-assembly processes is thoroughly reviewed. Initially, various silver nanoparticle synthesis routes are discussed with the emphasis focused on the chemical reduction in aqueous media. Subsequently, the main experimental methods aimed at bulk suspension characterization are critically reviewed by pointing out their advantages and limitations. Also, various methods enabling the in situ studies of particle deposition and release kinetics, especially the streaming potential method are discussed. In the next section, experimental data are invoked illustrating the most important features of particle monolayer formation, in particular, the role of bulk suspension concentration, particle size, ionic strength, temperature and pH. Afterward, the stability of monolayers and particle release kinetics are extensively discussed. The results obtained by the ex situ AFM/SEM imaging of particles are compared with the in situ streaming potential measurements. An equivalency of both methods is demonstrated, especially in respect to the binding energy determination. It is shown that these experimental results can be adequately interpreted in terms of the hybrid theoretical approach that combines the bulk transport step with the surface blocking effects derived from the random sequential adsorption model. It is also concluded that the particle release kinetics is governed by the discrete electrostatic interactions among ion pairs on particle and substrate surfaces. The classical theories based on the mean-field (averaged) zeta potential concept proved inadequate. Using the ion pair concept the minor dependence of the binding energy on particle size, ionic strength, pH and temperature is properly explained. The final sections of this review are devoted to the application of silver nanoparticles and their monolayers in medicine, analytical chemistry and catalysis.
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Affiliation(s)
- Magdalena Oćwieja
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Cracow, Poland.
| | - Zbigniew Adamczyk
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Cracow, Poland.
| | - Maria Morga
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Cracow, Poland.
| | - Katarzyna Kubiak
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Cracow, Poland.
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20
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Stewart A, Murray S, Bell SEJ. Simple preparation of positively charged silver nanoparticles for detection of anions by surface-enhanced Raman spectroscopy. Analyst 2015; 140:2988-94. [DOI: 10.1039/c4an02305f] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Modification of Ag colloids with thiocholine bromide switches the zeta potential from ca. −50 mV to ca. +50 mV, giving SERS substrates which promote adsorption of anions.
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Affiliation(s)
- A. Stewart
- School of Chemistry & Chemical Engineering
- Queen's University of Belfast
- Belfast BT9 5AG
- UK
| | - S. Murray
- School of Chemistry & Chemical Engineering
- Queen's University of Belfast
- Belfast BT9 5AG
- UK
| | - S. E. J. Bell
- School of Chemistry & Chemical Engineering
- Queen's University of Belfast
- Belfast BT9 5AG
- UK
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21
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Lopes-Moriyama AL, Madigou V, Souza CPD, Leroux C. Controlled synthesis of CoFe2O4 nano-octahedra. POWDER TECHNOL 2014. [DOI: 10.1016/j.powtec.2014.01.080] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Ramalingam S, Devi LB, Raghava Rao J, Unni Nair B. Rapid hydrogenation: perfect quasi architecture (Ag@SiO2NPs) as a substrate for nitrophenol reduction. RSC Adv 2014. [DOI: 10.1039/c4ra08885a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Spherical nanoparticles with core-frame architecture are a viable route to combine multiple functionalities on a nanoscopic scale.
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Affiliation(s)
- Sathya Ramalingam
- Chemical Laboratory
- Council of Scientific & Industrial Research–Central Leather Research Institute
- Chennai-600020, India
| | - Loganathan Bhavani Devi
- Chemical Laboratory
- Council of Scientific & Industrial Research–Central Leather Research Institute
- Chennai-600020, India
| | - Jonnalagadda Raghava Rao
- Chemical Laboratory
- Council of Scientific & Industrial Research–Central Leather Research Institute
- Chennai-600020, India
| | - Balachandran Unni Nair
- Chemical Laboratory
- Council of Scientific & Industrial Research–Central Leather Research Institute
- Chennai-600020, India
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23
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Duraipandy N, Lakra R, Kunnavakkam Vinjimur S, Samanta D, K PS, Kiran MS. Caging of plumbagin on silver nanoparticles imparts selectivity and sensitivity to plumbagin for targeted cancer cell apoptosis. Metallomics 2014; 6:2025-33. [DOI: 10.1039/c4mt00165f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nano-caging of plumbagin for selective killing of cancer cells.
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Affiliation(s)
- N. Duraipandy
- Council of Scientific and Industrial Research-CLRI
- Chennai-20, India
- Academy of Scientific and Innovative Research
- New Delhi, India
| | - Rachita Lakra
- Council of Scientific and Industrial Research-CLRI
- Chennai-20, India
| | | | - Debasis Samanta
- Council of Scientific and Industrial Research-CLRI
- Chennai-20, India
| | - Purna Sai K
- Council of Scientific and Industrial Research-CLRI
- Chennai-20, India
- Academy of Scientific and Innovative Research
- New Delhi, India
| | - Manikantan Syamala Kiran
- Council of Scientific and Industrial Research-CLRI
- Chennai-20, India
- Academy of Scientific and Innovative Research
- New Delhi, India
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24
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Skoglund S, Lowe TA, Hedberg J, Blomberg E, Wallinder IO, Wold S, Lundin M. Effect of laundry surfactants on surface charge and colloidal stability of silver nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:8882-8891. [PMID: 23758058 DOI: 10.1021/la4012873] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The stability of silver nanoparticles (Ag NPs) potentially released from clothing during a laundry cycle and their interactions with laundry-relevant surfactants [anionic (LAS), cationic (DTAC), and nonionic (Berol)] have been investigated. Surface interactions between Ag NPs and surfactants influence their speciation and stability. In the absence of surfactants as well as in the presence of LAS, the negatively charged Ag NPs were stable in solution for more than 1 day. At low DTAC concentrations (≤1 mM), DTAC-Ag NP interactions resulted in charge neutralization and formation of agglomerates. The surface charge of the particles became positive at higher concentrations due to a bilayer type formation of DTAC that prevents from agglomeration due to repulsive electrostatic forces between the positively charged colloids. The adsorption of Berol was enhanced when above its critical micelle concentration (cmc). This resulted in a surface charge close to zero and subsequent agglomeration. Extended DLVO theory calculations were in compliance with observed findings. The stability of the Ag NPs was shown to depend on the charge and concentration of the adsorbed surfactants. Such knowledge is important as it may influence the subsequent transport of Ag NPs through different chemical transients and thus their potential bioavailability and toxicity.
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Affiliation(s)
- Sara Skoglund
- KTH Royal Institute of Technology, School of Chemical Science and Engineering, Stockholm, Sweden.
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25
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High-concentration silver colloid stabilized by a cationic gemini surfactant. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.03.068] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Mondal S, Das T, Ghosh P, Maity A, Mallick A, Purkayastha P. FRET-based characterisation of surfactant bilayer protected core–shell carbon nanoparticles: advancement toward carbon nanotechnology. Chem Commun (Camb) 2013; 49:7638-40. [DOI: 10.1039/c3cc43443e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Chakraborty M, Hsiao FW, Naskar B, Chang CH, Panda AK. Surfactant-assisted synthesis and characterization of stable silver bromide nanoparticles in aqueous media. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:7282-7290. [PMID: 22512457 DOI: 10.1021/la300615b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Colloidal dispersions of silver bromide (AgBr) in aqueous surfactant medium have been prepared using a surfactant-assisted synthesis approach with hexadecyltrimethylammonium bromide (CTAB). The surfactant acts both as source of bromide ion as well as the stabilizing agent. Upon progressive addition of silver nitrate to aqueous CTAB solution, stable AgBr dispersions were obtained. Formation of surfactant cation (CTA(+)) stabilized AgBr was confirmed by way of XRD, FTIR and NMR studies. Thermal behavior of the isolated nanoparticles was investigated by differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA), where the occurrence of phase transition in the surfactant-stabilized nanoparticles was observed. Kinetics of the particle growth was investigated by dynamic light scattering measurements, which predicted the formation of surfactant bilayered structures associated with the nanoparticles of AgBr. Band gap of the nanoparticles was determined by suitably analyzing the UV-visible spectral data, which concluded that the particles behaved like insulators. Morphology of the particles, studied by TEM measurements, was found to be spherical. Finally, enthalpy of formation of surfactant-stabilized AgBr, determined calorimetrically, was found to be dependent on the concentration of the precursors.
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Affiliation(s)
- Moumita Chakraborty
- Department of Chemistry, University of North Bengal, Darjeeling 734 013, W.B., India
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28
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Hedberg J, Lundin M, Lowe T, Blomberg E, Wold S, Wallinder IO. Interactions between surfactants and silver nanoparticles of varying charge. J Colloid Interface Sci 2012; 369:193-201. [DOI: 10.1016/j.jcis.2011.12.004] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Revised: 12/01/2011] [Accepted: 12/02/2011] [Indexed: 10/14/2022]
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29
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Gutiérrez-Becerra A, Barcena-Soto M, Soto V, Arellano-Ceja J, Casillas N, Prévost S, Noirez L, Gradzielski M, Escalante JI. Structure of reverse microemulsion-templated metal hexacyanoferrate nanoparticles. NANOSCALE RESEARCH LETTERS 2012; 7:83. [PMID: 22264404 PMCID: PMC3282649 DOI: 10.1186/1556-276x-7-83] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Accepted: 01/20/2012] [Indexed: 05/16/2023]
Abstract
The droplet phase of a reverse microemulsion formed by the surfactant cetyltrimethylammonium ferrocyanide was used as a matrix to synthesize nanoparticles of nickel hexacyanoferrate by adding just a solution of NiCl2 to the microemulsion media. Dynamic light scattering and small-angle neutron scattering measurements show that the reverse microemulsion droplets employed have a globular structure, with sizes that depend on water content. Transmission electron microscopy and electron diffraction are used to obtain information about the structure of the synthesized nanoparticles. The results show that the size and shape of the coordination compound nanoparticles correspond with the size and shape of the droplets, suggesting that the presented system constitutes an alternative method of the synthesis of metal hexacyanoferrate nanoparticles.
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Affiliation(s)
- Alberto Gutiérrez-Becerra
- Chemistry Department, University of Guadalajara, Boul. M. García Barragán # 1451, Guadalajara, Jalisco, 44430, Mexico
| | - Maximiliano Barcena-Soto
- Chemistry Department, University of Guadalajara, Boul. M. García Barragán # 1451, Guadalajara, Jalisco, 44430, Mexico
| | - Víctor Soto
- Chemistry Department, University of Guadalajara, Boul. M. García Barragán # 1451, Guadalajara, Jalisco, 44430, Mexico
| | - Jesús Arellano-Ceja
- Chemistry Department, University of Guadalajara, Boul. M. García Barragán # 1451, Guadalajara, Jalisco, 44430, Mexico
| | - Norberto Casillas
- Chemistry Department, University of Guadalajara, Boul. M. García Barragán # 1451, Guadalajara, Jalisco, 44430, Mexico
| | - Sylvain Prévost
- Stranski-Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 124, Sekr. TC7, Berlin, 10623, Germany
| | - Laurence Noirez
- Laboratoire Léon Brillouin (CEA-CNRS), CEA Saclay, Gif-sur-Yvette, 91191, France
| | - Michael Gradzielski
- Stranski-Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 124, Sekr. TC7, Berlin, 10623, Germany
| | - José I Escalante
- Chemistry Department, University of Guadalajara, Boul. M. García Barragán # 1451, Guadalajara, Jalisco, 44430, Mexico
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30
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Abstract
The silver nanoparticles with 42 nm in diameter were synthesized under control of cetyltrimethyl ammonium bromide (CTAB). CTAB acted not only as reactant but also as dispersing agent. The efficient molluscicidal effect of the silver nanoparticles showed that a new way of the schistosomiasis prevention has been explored.
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31
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Mehta SK, Kumar S, Chaudhary S, Bhasin KK. Effect of Cationic Surfactant Head Groups on Synthesis, Growth and Agglomeration Behavior of ZnS Nanoparticles. NANOSCALE RESEARCH LETTERS 2009; 4:1197-1208. [PMID: 20596462 PMCID: PMC2893803 DOI: 10.1007/s11671-009-9377-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2008] [Accepted: 06/15/2009] [Indexed: 05/29/2023]
Abstract
Colloidal nanodispersions of ZnS have been prepared using aqueous micellar solution of two cationic surfactants of trimethylammonium/pyridinium series with different head groups i.e., cetyltrimethylammonium chloride (CTAC) and cetyltrimethylpyridinium chloride (CPyC). The role of these surfactants in controlling size, agglomeration behavior and photophysical properties of ZnS nanoparticles has been discussed. UV-visible spectroscopy has been carried out for determination of optical band gap and size of ZnS nanoparticles. Transmission electron microscopy and dynamic light scattering were used to measure sizes and size distribution of ZnS nanoparticles. Powder X-ray analysis (Powder XRD) reveals the cubic structure of nanocrystallite in powdered sample. The photoluminescence emission band exhibits red shift for ZnS nanoparticles in CTAC compared to those in CPyC. The aggregation behavior in two surfactants has been compared using turbidity measurements after redispersing the nanoparticles in water. In situ evolution and growth of ZnS nanoparticles in two different surfactants have been compared through time-dependent absorption behavior and UV irradiation studies. Electrical conductivity measurements reveal that CPyC micelles better stabilize the nanoparticles than that of CTAC. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s11671-009-9377-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- SK Mehta
- Department of Chemistry, Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - Sanjay Kumar
- Department of Chemistry, Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - Savita Chaudhary
- Department of Chemistry, Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - KK Bhasin
- Department of Chemistry, Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
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32
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Mehta SK, Kumar S, Chaudhary S, Bhasin KK, Gradzielski M. Evolution of ZnS Nanoparticles via Facile CTAB Aqueous Micellar Solution Route: A Study on Controlling Parameters. NANOSCALE RESEARCH LETTERS 2009; 4:17-28. [PMID: 20592958 PMCID: PMC2893752 DOI: 10.1007/s11671-008-9196-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2008] [Accepted: 10/17/2008] [Indexed: 05/29/2023]
Abstract
Synthesis of semiconductor nanoparticles with new photophysical properties is an area of special interest. Here, we report synthesis of ZnS nanoparticles in aqueous micellar solution of Cetyltrimethylammonium bromide (CTAB). The size of ZnS nanodispersions in aqueous micellar solution has been calculated using UV-vis spectroscopy, XRD, SAXS, and TEM measurements. The nanoparticles are found to be polydispersed in the size range 6-15 nm. Surface passivation by surfactant molecules has been studied using FTIR and fluorescence spectroscopy. The nanoparticles have been better stabilized using CTAB concentration above 1 mM. Furthermore, room temperature absorption and fluorescence emission of powdered ZnS nanoparticles after redispersion in water have also been investigated and compared with that in aqueous micellar solution. Time-dependent absorption behavior reveals that the formation of ZnS nanoparticles depends on CTAB concentration and was complete within 25 min.
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Affiliation(s)
- SK Mehta
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - Sanjay Kumar
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - Savita Chaudhary
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - KK Bhasin
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India
| | - Michael Gradzielski
- Stranski-Laboratorium für Physikalische Chemie und Theoretische Chemie, Institut für Chemie, TU Berlin, Sekr. TC 7, Strasse des 17. Juni 124, D-10623, Berlin, Germany
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33
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Li M, Wei L, Zhang X, Yu XF. High Temperature Seedless Synthesis of Au NRs Using BDAC/CTAB Co-surfactant. CHINESE J CHEM PHYS 2008. [DOI: 10.1088/1674-0068/21/05/476-480] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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34
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Liu XH, Luo XH, Lu SX, Zhang JC, Cao WL. A novel cetyltrimethyl ammonium silver bromide complex and silver bromide nanoparticles obtained by the surfactant counterion. J Colloid Interface Sci 2007; 307:94-100. [PMID: 17188288 DOI: 10.1016/j.jcis.2006.11.051] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2006] [Revised: 10/17/2006] [Accepted: 11/21/2006] [Indexed: 11/19/2022]
Abstract
A novel cetyltrimethyl ammonium silver bromide (CTASB) complex has been prepared simply through the reaction of silver nitrate with cetyltrimethyl ammonium bromide (CTAB) in aqueous solution at room temperature by controlling the concentration of CTAB and the molar ratio of CTAB to silver nitrate in the reaction solution, in which halogen in CTAB is used as surfactant counterion. The structure and thermal behavior of cetyltrimethyl ammonium silver bromide have been investigated by using X-ray diffraction (XRD), infrared spectroscopy (IR), X-ray photoelectron spectroscopy (XPS), UV/vis spectroscopy, thermal analysis (TG-DTA), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The results show that the complex possesses a metastable layered structure. Upon heating the CTASB aqueous dispersion to above 80 degrees C, the structure change of the complex took place and CTAB-capped nanosized silver bromide particles further formed.
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Affiliation(s)
- Xian-Hao Liu
- Institute of Modern Catalysis, Beijing University of Chemical Technology, State Key Laboratory of Chemical Resource Engineering, Beijing 100029, China
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35
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Sertova N, Toulemonde M, Hegmann T. Towards Recyclable Nanoporous Polymer Membranes for the Synthesis of One-dimensional Nanoscale Gold Colloids. J Inorg Organomet Polym Mater 2006. [DOI: 10.1007/s10904-006-9023-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Yang C, Chen X, Sui Z, Wang L. Molecular dynamics simulation of a positively charged silver nanoparticle capped by cetyltrimethylammonium cations. Colloids Surf A Physicochem Eng Asp 2006. [DOI: 10.1016/j.colsurfa.2005.09.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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