101
|
Rezvani Amin Z, Khashyarmanesh Z, Fazly Bazzaz BS. Different behavior of Staphylococcus epidermidis in intracellular biosynthesis of silver and cadmium sulfide nanoparticles: more stability and lower toxicity of extracted nanoparticles. World J Microbiol Biotechnol 2016; 32:140. [PMID: 27430507 DOI: 10.1007/s11274-016-2110-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Accepted: 07/05/2016] [Indexed: 11/24/2022]
Abstract
Chemical reagents that are used for synthesis of nanoparticles are often toxic, while biological reagents are safer and cost-effective. Here, the behavior of Staphylococcus epidermidis (ATCC 12228) was evaluated for biosynthesis of silver nanoparticles (Ag-NPs) and cadmium sulfide nanoparticles (CdS-NPs) using TEM images intra- and extracellularly. The bacteria only biosynthesized the nanoparticles intracellularly and distributed Ag-NPs throughout the cytoplasm and on outside surface of cell walls, while CdS-NPs only formed in cytoplasm near the cell wall. A new method for purification of the nanoparticles was used. TEM images of pure CdS-NPs confirmed biosynthesis of agglomerated nanoparticles. Biosynthetic Ag-NPs were more stable against bright light and aggregation reaction than synthetic Ag-NPs (prepared chemically) also biosynthetic Ag-NPs displayed lower toxicity in in vitro assays. CdS-NPs indicated no toxicity in in vitro assays. Biosynthetic nanoparticles as product of the detoxification pathway may be safer and more stable for biosensors.
Collapse
Affiliation(s)
- Zohreh Rezvani Amin
- Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Khashyarmanesh
- Department of Pharmaceutical Control, School of Pharmacy, Mashhad University of Medical Sciences, P.O. Box 91775-1365, Mashhad, Iran
| | - Bibi Sedigheh Fazly Bazzaz
- Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. .,Department of Pharmaceutical Control, School of Pharmacy, Mashhad University of Medical Sciences, P.O. Box 91775-1365, Mashhad, Iran.
| |
Collapse
|
102
|
Semenova AA, Semenov AP, Gudilina EA, Sinyukova GT, Brazhe NA, Maksimov GV, Goodilin EA. Nanostructured silver materials for noninvasive medical diagnostics by surface-enhanced Raman spectroscopy. MENDELEEV COMMUNICATIONS 2016. [DOI: 10.1016/j.mencom.2016.04.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
103
|
Browning LM, Lee KJ, Cherukuri PK, Nallathamby PD, Warren S, Jault JM, Xu XHN. Single Nanoparticle Plasmonic Spectroscopy for Study of the Efflux Function of Multidrug ABC Membrane Transporters of Single Live Cells. RSC Adv 2016; 6:36794-36802. [PMID: 27570617 DOI: 10.1039/c6ra05895g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
ATP-binding cassette (ABC) membrane transporters exist in all living organisms and play key roles in a wide range of cellular and physiological functions. The ABC transporters can selectively extrude a wide variety of structurally and functionally unrelated substrates, leading to multidrug resistance. Despite extensive study, their efflux molecular mechanisms remain elusive. In this study, we synthesized and characterized purified silver nanoparticles (Ag NPs) (97 ± 13 nm in diameter), and used them as photostable optical imaging probes to study efflux kinetics of ABC membrane transporters (BmrA) of single live cells (B. subtillis). The NPs with concentrations up to 3.7 pM were stable (non-aggregated) in a PBS buffer and biocompatible with the cells. We found a high dependence of accumulation of the intracellular NPs in single live cells (WT, Ct-BmrA-EGFP, ΔbmrA) upon the cellular expression level of BmrA and NP concentration (0.93, 1.85 and 3.7 pM), showing the highest accumulation of intracellular NPs in ΔbmrA (deletion of BmrA) and the lowest ones in Ct-BmrA-EGFP (over-expression of BmrA). Interestingly, the accumulation of intracellular NPs in ΔbmrA increases nearly proportionally with the NP concentration, while those in WT and Ct-BrmA-EGFP do not. This suggests that the NPs enter the cells via passive diffusion driven by concentration gradients and are extruded out of cells by BmrA transporters, similar to conventional pump substrates (antibiotics). This study shows that such large substrates (84-100 nm NPs) can enter into the live cells and be extruded out of the cells by BmrA, and the NPs can serve as nm-sized optical imaging probes to study the size-dependent efflux kinetics of membrane transporters in single live cells in real time.
Collapse
Affiliation(s)
- Lauren M Browning
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA
| | - Kerry J Lee
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA
| | - Pavan K Cherukuri
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA
| | - Prakash D Nallathamby
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA
| | - Seth Warren
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA
| | - Jean-Michel Jault
- UMR5086 CNRS/UCBLyon I, MMSB-IBCP, 7 Passage du Vercors 69367 Lyon cedex 07, France
| | - Xiao-Hong Nancy Xu
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA
| |
Collapse
|
104
|
Mendis P, de Silva RM, de Silva KMN, Wijenayaka LA, Jayawardana K, Yan M. Nanosilver rainbow: a rapid and facile method to tune different colours of nanosilver through the controlled synthesis of stable spherical silver nanoparticles. RSC Adv 2016. [DOI: 10.1039/c6ra08336f] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A rapid and simple one-pot reaction to synthesize stable, spherically shaped silver nanoparticles of different sizes producing distinct optical properties in aqueous solution at ambient temperature has been developed.
Collapse
Affiliation(s)
| | | | - K. M. Nalin de Silva
- Department of Chemistry
- University of Colombo
- Colombo 03
- Sri Lanka
- Sri Lanka Institute of Nanotechnology (SLINTEC)
| | | | - Kalana Jayawardana
- Department of Chemistry
- University of Massachusetts
- Lowell
- USA
- Department of Chemistry
| | - Mingdi Yan
- Department of Chemistry
- University of Massachusetts
- Lowell
- USA
- Department of Chemistry
| |
Collapse
|
105
|
Skrzyńska E, Zaid S, Addad A, Girardon JS, Capron M, Dumeignil F. Performance of Ag/Al2O3 catalysts in the liquid phase oxidation of glycerol – effect of preparation method and reaction conditions. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01581b] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A series of silver supported catalysts have been developed and proposed for mild oxidation of glycerol in the liquid phase. High selectivity to glycolic acid, stability in both continuous-flow and periodic mode of reaction, and good resistance to crude glycerol impurities have been achieved.
Collapse
Affiliation(s)
- E. Skrzyńska
- Faculty of Chemical Engineering and Technology
- Cracow University of Technology
- 31-155 Cracow
- Poland
- Univ. Lille
| | - S. Zaid
- Univ. Lille
- CNRS
- Centrale Lille
- ENSCL
- Univ. Artois
| | - A. Addad
- CNRS UMR 8207
- Unité Matériaux et Transformations
- Université de Lille 1 Sciences et Technologies
- France
| | | | - M. Capron
- Univ. Lille
- CNRS
- Centrale Lille
- ENSCL
- Univ. Artois
| | | |
Collapse
|
106
|
Yorov KE, Grigorieva AV, Sidorov AV, Polyakov AY, Sukhorukova IV, Shtansky DV, Grünert W, Goodilin EA. Inkjet printing of silver rainbow colloids for SERS chips with polychromatic sensitivity. RSC Adv 2016. [DOI: 10.1039/c5ra25907j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Polychromatic cellulose-based active element for SERS optical sensor was successfully inkjet printed using rainbow silver colloids. SERS tests of photostable analytes revealed most bright enhanced signals for the pre-resonant measurements.
Collapse
Affiliation(s)
- K. E. Yorov
- Department of Materials Science
- Lomonosov Moscow State University
- Moscow 119991
- Russia
| | - A. V. Grigorieva
- Department of Materials Science
- Lomonosov Moscow State University
- Moscow 119991
- Russia
| | - A. V. Sidorov
- Department of Materials Science
- Lomonosov Moscow State University
- Moscow 119991
- Russia
| | - A. Yu. Polyakov
- Department of Materials Science
- Lomonosov Moscow State University
- Moscow 119991
- Russia
| | - I. V. Sukhorukova
- National University of Science and Technology MISiS
- Moscow 119049
- Russia
| | - D. V. Shtansky
- National University of Science and Technology MISiS
- Moscow 119049
- Russia
| | - W. Grünert
- Department of Chemistry and Biochemistry
- Ruhr-University at Bochum
- Bochum 44801
- Germany
| | - E. A. Goodilin
- Department of Materials Science
- Lomonosov Moscow State University
- Moscow 119991
- Russia
| |
Collapse
|
107
|
Kolářová K, Krajcar R, Ulbrich P, Švorčík V. Transfer of metallic nanostructures from solid-state substrates. RSC Adv 2016. [DOI: 10.1039/c6ra05038g] [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
A novel technique for transferring dimensionally diverse metallic nanostructures from different kinds of substrates into chitosan foil is described.
Collapse
Affiliation(s)
- K. Kolářová
- Department of Solid State Engineering
- University of Chemistry and Technology, Prague
- 166 28 Prague
- Czech Republic
| | - R. Krajcar
- Department of Solid State Engineering
- University of Chemistry and Technology, Prague
- 166 28 Prague
- Czech Republic
| | - P. Ulbrich
- Department of Biochemistry and Microbiology
- University of Chemistry and Technology, Prague
- 166 28 Prague
- Czech Republic
| | - V. Švorčík
- Department of Solid State Engineering
- University of Chemistry and Technology, Prague
- 166 28 Prague
- Czech Republic
| |
Collapse
|
108
|
Praveen Kumar PP, Kathuria L, Haridas V. Cysteine-based silver nanoparticles as dual colorimetric sensors for cations and anions. NEW J CHEM 2016. [DOI: 10.1039/c6nj01486k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The synthesis of amide–triazole-based Ag NPs and their sensing ability towards anions and cations in aqueous solution were investigated. The importance of amide–triazole as a binding motif, in conjunction with Ag NPs, and the mode of the sensing ability of these amide–triazole Ag NPs as dual colorimetric sensors have been studied in detail.
Collapse
Affiliation(s)
- P. P. Praveen Kumar
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi - 110016
- India
| | - Lakshay Kathuria
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi - 110016
- India
| | - V. Haridas
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi - 110016
- India
| |
Collapse
|
109
|
Semenova AA, Brazhe NA, Parshina EY, Sarycheva AS, Maksimov GV, Goodilin EA. A new route for SERS analysis of intact erythrocytes using polydisperse silver nanoplatelets on biocompatible scaffolds. RSC Adv 2016. [DOI: 10.1039/c6ra20372h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
We provided mutual survival of anisotropic silver nanoparticles and intact erythrocyte in salines to record SERS spectra on biocompatible cellulose scaffolds after replacement of chloride ions with nitrates.
Collapse
Affiliation(s)
- Anna A. Semenova
- Faculty of Materials Science
- Moscow State University
- Moscow
- Russian Federation
| | | | | | - Asia S. Sarycheva
- Faculty of Materials Science
- Moscow State University
- Moscow
- Russian Federation
| | | | - Eugene A. Goodilin
- Faculty of Materials Science
- Moscow State University
- Moscow
- Russian Federation
- Kurnakov Institute of General Anorganic Chemistry
| |
Collapse
|
110
|
Synthesis of silver/polymer nanocomposites by surface coating using carbodiimide method. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.04.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
111
|
|
112
|
Sadecka K, Toudert J, Surma HB, Pawlak DA. Temperature and atmosphere tunability of the nanoplasmonic resonance of a volumetric eutectic-based Bi₂O₃-Ag metamaterial. OPTICS EXPRESS 2015; 23:19098-19111. [PMID: 26367573 DOI: 10.1364/oe.23.019098] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Nanoplasmonic materials are intensively studied due to the advantages they bring in various applied fields such as photonics, optoelectronics, photovoltaics and medicine. However, their large-scale fabrication and tunability are still a challenge. One of the promising ways of combining these two is to use the self-organization mechanism and after-growth engineering as annealing for tuning the properties. This paper reports the development of a bulk nanoplasmonic, Bi2O3-Ag eutectic-based metamaterial with a tunable plasmonic resonance between orange and green wavelengths. The material, obtained by a simple growth technique, exhibits a silver nanoparticle-related localized surface plasmon resonance (LSPR) in the visible wavelength range. We demonstrate the tunability of the LSPR (spectral position, width and intensity) as a function of the annealing temperature, time and the atmosphere. The critical role of the annealing atmosphere is underlined, annealing in vacuum being the most effective option for a broad control of the LSPR. The various potential mechanisms responsible for tuning the localized surface plasmon resonance upon annealing are discussed in relation to the nanostructures of the obtained materials.
Collapse
|
113
|
Can green synthesized propolis loaded silver nanoparticulate gel enhance wound healing caused by burns? Eur J Integr Med 2015. [DOI: 10.1016/j.eujim.2015.03.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
114
|
Krajczewski J, Kołątaj K, Kudelski A. Light-induced growth of various silver seed nanoparticles: A simple method of synthesis of different silver colloidal SERS substrates. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.02.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
115
|
Satheeshkumar E, Yang J. Analyte-induced photoreduction method for visual and colorimetric detection of tyrosine. Anal Chim Acta 2015; 879:111-7. [PMID: 26002485 DOI: 10.1016/j.aca.2015.03.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 03/25/2015] [Accepted: 03/26/2015] [Indexed: 12/19/2022]
Abstract
A new method based on photochemical formation of silver nanoparticles (AgNPs) was developed for detection of tyrosine (Tyr). To selectively detect Tyr and to simplify the detection procedure, the photoactivity of Tyr was utilized to trigger the photochemical reduction in production of AgNPs. The drastic change of solution color caused by the surface plasmon resonance (SPR) absorption band of the formed AgNPs was used to extract the quantitative information of Tyr. This developed method is simple in detection, while both the sensitivity and selectivity are significant improved. Meanwhile, the solution color was changed from colorless to dark yellow after the formation of AgNPs, which allows a much higher sensitivity in visual identification when compared with the SPR band shifting technique commonly, used in conventional colorimetric methods. To optimize the detection system and to understand the mechanism in this proposed method, parameters such as irradiation time, intensity of light source, and the concentration of Tyr were systematically examined. Results indicated that these factors mainly affected the reaction rate of photoreduction. The morphologies of the formed AgNPs were similar, but with small differences in particle sizes. In the examination of selectivity, sixteen other amino acids were examined. Results indicated that only amino acids of tryptophan, cysteine and histidine are photoactive and possess potential interferences in analysis of Tyr. Quantitative studies indicated that a linear response up to 10 μM with a detection limit of 100 nM could be obtained. For visually detection, color change could be observed with a concentration as low as 500 nM of Tyr.
Collapse
Affiliation(s)
| | - Jyisy Yang
- Department of Chemistry, National Chung-Hsing University, Taichung 402, Taiwan.
| |
Collapse
|
116
|
Berdnikova DV, Ihmels H, Schönherr H, Steuber M, Wesner D. Photoinduced formation of stable Ag-nanoparticles from a ternary ligand-DNA-Ag+ complex. Org Biomol Chem 2015; 13:3766-70. [DOI: 10.1039/c5ob00295h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The irradiation of a ternary complex between an intercalator crown-ether conjugate, double-stranded DNA, and Ag+ ions leads to the formation of stable Ag nanoparticles.
Collapse
Affiliation(s)
- Daria V. Berdnikova
- Center of Micro and Nanochemistry and Engineering; Department Chemie-Biologie
- Universität Siegen
- 57068 Siegen
- Germany
| | - Heiko Ihmels
- Center of Micro and Nanochemistry and Engineering; Department Chemie-Biologie
- Universität Siegen
- 57068 Siegen
- Germany
| | - Holger Schönherr
- Center of Micro and Nanochemistry and Engineering; Department Chemie-Biologie
- Universität Siegen
- 57068 Siegen
- Germany
| | - Marc Steuber
- Center of Micro and Nanochemistry and Engineering; Department Chemie-Biologie
- Universität Siegen
- 57068 Siegen
- Germany
| | - Daniel Wesner
- Center of Micro and Nanochemistry and Engineering; Department Chemie-Biologie
- Universität Siegen
- 57068 Siegen
- Germany
| |
Collapse
|
117
|
Sarycheva AS, Ivanov VK, Baranchikov AE, Savilov SV, Sidorov AV, Goodilin EA. Microbead silica decorated with polyhedral silver nanoparticles as a versatile component of sacrificial gel films for SERS applications. RSC Adv 2015. [DOI: 10.1039/c5ra16788d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new method of microbead silica preparation with polyhedral 20–50 nm silver nanoparticles encrusting silica surface. Such microengineered building blocks are stored safely in a sacrificial biopolymer (ethylcellulose) film.
Collapse
Affiliation(s)
- Asia S. Sarycheva
- Faculty of Materials Science
- Moscow State University
- Moscow
- Russian Federation
| | - Vladimir K. Ivanov
- Faculty of Materials Science
- Moscow State University
- Moscow
- Russian Federation
- Institute of General and Inorganic Chemistry
| | | | | | - Alexander V. Sidorov
- Faculty of Materials Science
- Moscow State University
- Moscow
- Russian Federation
- National Research Centre "Kurchatov Institute"
| | - Eugene A. Goodilin
- Faculty of Materials Science
- Moscow State University
- Moscow
- Russian Federation
- Institute of General and Inorganic Chemistry
| |
Collapse
|
118
|
Das T, Yeasmin S, Khatua S, Acharya K, Bandyopadhyay A. Influence of a blend of guar gum and poly(vinyl alcohol) on long term stability, and antibacterial and antioxidant efficacies of silver nanoparticles. RSC Adv 2015. [DOI: 10.1039/c5ra08257a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A blend of guar gum and poly(vinyl alcohol) reduced and stabilized incipient silver nanoparticles which could be stored for 60 days. Silver nanoparticles also exhibited good antibacterial and antioxidant properties.
Collapse
Affiliation(s)
- Tamalika Das
- Department of Polymer Science & Technology
- University of Calcutta
- Kolkata – 700009
- India
| | - Sabina Yeasmin
- Department of Polymer Science & Technology
- University of Calcutta
- Kolkata – 700009
- India
| | - Somanjana Khatua
- Molecular and Applied Mycology and Plant Pathology Laboratory
- Department of Botany
- University of Calcutta
- Kolkata – 700019
- India
| | - Krishnendu Acharya
- Molecular and Applied Mycology and Plant Pathology Laboratory
- Department of Botany
- University of Calcutta
- Kolkata – 700019
- India
| | - Abhijit Bandyopadhyay
- Department of Polymer Science & Technology
- University of Calcutta
- Kolkata – 700009
- India
| |
Collapse
|
119
|
Gozdziewska M, Cichowicz G, Markowska K, Zawada K, Megiel E. Nitroxide-coated silver nanoparticles: synthesis, surface physicochemistry and antibacterial activity. RSC Adv 2015. [DOI: 10.1039/c5ra09366j] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report the synthesis of well-defined silver nanoparticles with high antibacterial activity. Nitroxides on their surface may be oxidized under the influence of ROS to oxoammonium ions which are capable of interacting with bacterial membrane.
Collapse
Affiliation(s)
| | | | - Katarzyna Markowska
- University of Warsaw
- Faculty of Biology
- Institute of Microbiology
- Department of Bacterial Genetics
- 02-096 Warsaw
| | - Katarzyna Zawada
- Medical University of Warsaw
- Faculty of Pharmacy with the Laboratory Medicine Division
- 07-097 Warsaw
- Poland
| | | |
Collapse
|
120
|
Thiele M, Götz I, Trautmann S, Müller R, Csáki A, Henkel T, Fritzsche W. Wet-chemical Passivation of Anisotropic Plasmonic Nanoparticles for LSPR-sensing by a Silica Shell. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.matpr.2015.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
121
|
Zheng Z, Huang Q, Guan H, Liu S. In situ synthesis of silver nanoparticles dispersed or wrapped by a Cordyceps sinensis exopolysaccharide in water and their catalytic activity. RSC Adv 2015. [DOI: 10.1039/c5ra09452f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In situ synthesis of silver nanoparticles (AgNPs) dispersed or wrapped by a Cordyceps sinensis exopolysaccharide (EPS) and their catalytic activity.
Collapse
Affiliation(s)
- Zhaomin Zheng
- College of Food Science and Technology
- MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- China
| | - Qilin Huang
- College of Food Science and Technology
- MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- China
| | - Han Guan
- College of Food Science and Technology
- MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- China
| | - Shiyu Liu
- College of Food Science and Technology
- MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- China
| |
Collapse
|
122
|
Silver nanoparticles: synthesis, properties, and therapeutic applications. Drug Discov Today 2014; 20:595-601. [PMID: 25543008 DOI: 10.1016/j.drudis.2014.11.014] [Citation(s) in RCA: 481] [Impact Index Per Article: 48.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 11/11/2014] [Accepted: 11/27/2014] [Indexed: 12/16/2022]
Abstract
Silver nanoparticles (AgNPs) have been widely used in biomedical fields because of their intrinsic therapeutic properties. Here, we introduce methods of synthesizing AgNPs and discuss their physicochemical, localized surface plasmon resonance (LSPR) and toxicity properties. We also review the impact of AgNPs on human health and the environment along with the underlying mechanisms. More importantly, we highlight the newly emerging applications of AgNPs as antiviral agents, photosensitizers and/or radiosensitizers, and anticancer therapeutic agents in the treatment of leukemia, breast cancer, hepatocellular carcinoma, lung cancer, and skin and/or oral carcinoma.
Collapse
|
123
|
Rossi M, Cubadda F, Dini L, Terranova M, Aureli F, Sorbo A, Passeri D. Scientific basis of nanotechnology, implications for the food sector and future trends. Trends Food Sci Technol 2014. [DOI: 10.1016/j.tifs.2014.09.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
124
|
Schwass DR, Meledandri CJ. Enhanced Penetration of Silver Nanocomposite Assemblies into Dentine Using Iontophoresis: Toward the Treatment of Dental Caries. Chempluschem 2014. [DOI: 10.1002/cplu.201402132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
125
|
Khan AY, Bandyopadhyaya R. Silver nanoparticle impregnated mesoporous silica as a non-enzymatic amperometric sensor for an aqueous solution of hydrogen peroxide. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.05.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
126
|
Tan SJ, Zhang L, Zhu D, Goh XM, Wang YM, Kumar K, Qiu CW, Yang JKW. Plasmonic color palettes for photorealistic printing with aluminum nanostructures. NANO LETTERS 2014; 14:4023-9. [PMID: 24926611 DOI: 10.1021/nl501460x] [Citation(s) in RCA: 228] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We introduce the first plasmonic palette utilizing color generation strategies for photorealistic printing with aluminum nanostructures. Our work expands the visible color space through spatially mixing and adjusting the nanoscale spacing of discrete nanostructures. With aluminum as the plasmonic material, we achieved enhanced durability and dramatically reduced materials costs with our nanostructures compared to commonly used plasmonic materials such as gold and silver, as well as size regimes scalable to higher-throughput approaches such as photolithography and nanoimprint lithography. These advances could pave the way toward a new generation of low-cost, high-resolution, plasmonic color printing with direct applications in security tagging, cryptography, and information storage.
Collapse
Affiliation(s)
- Shawn J Tan
- Institute of Materials Research and Engineering, A*STAR , 3 Research Link, Singapore 117602, Singapore
| | | | | | | | | | | | | | | |
Collapse
|
127
|
Hedayati MK, Fahr S, Etrich C, Faupel F, Rockstuhl C, Elbahri M. The hybrid concept for realization of an ultra-thin plasmonic metamaterial antireflection coating and plasmonic rainbow. NANOSCALE 2014; 6:6037-6045. [PMID: 24777285 DOI: 10.1039/c4nr00087k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report on the design, simulation, fabrication, and characterization of a novel two layer anti-reflective coating (ARC) based on a plasmonic metamaterial and a dielectric. Promoted by the strong material dispersion of the plasmonic metamaterial, our novel concept (called hybrid ARC) combines two possible arrangements for layers in an anti-reflection coating into a single structure; albeit at two different wavelengths. This, however, causes a broadband reduction of reflection that is less sensitive against oblique incidence when compared to traditional antireflective coatings. Furthermore, we show that the current metamaterial on a metal reflector can be used for the visualization of different coloration such as plasmonic rainbow despite its sub-wavelength thickness.
Collapse
Affiliation(s)
- M Keshavarz Hedayati
- Nanochemistry and Nanoengineering, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-Universität zu Kiel, Kaiserstrasse 2, 24143 Kiel, Germany
| | | | | | | | | | | |
Collapse
|
128
|
Browning LM, Huang T, Xu XHN. Real-time in vivo imaging of size-dependent transport and toxicity of gold nanoparticles in zebrafish embryos using single nanoparticle plasmonic spectroscopy. Interface Focus 2014; 3:20120098. [PMID: 24427540 DOI: 10.1098/rsfs.2012.0098] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Noble metal nanoparticles (NPs) show distinctive plasmonic optical properties and superior photostability, enabling them to serve as photostable multi-coloured optical molecular probes and sensors for real-time in vivo imaging. To effectively study biological functions in vivo, it is essential that the NP probes are biocompatible and can be delivered into living organisms non-invasively. In this study, we have synthesized, purified and characterized stable (non-aggregated) gold (Au) NPs (86.2 ± 10.8 nm). We have developed dark-field single NP plasmonic microscopy and spectroscopy to study their transport into early developing zebrafish embryos (cleavage stage) and their effects on embryonic development in real-time at single NP resolution. We found that single Au NPs (75-97 nm) passively diffused into the embryos via their chorionic pore canals, and stayed inside the embryos throughout their entire development (120 h). The majority of embryos (96 ± 3%) that were chronically incubated with the Au NPs (0-20 pM) for 120 h developed to normal zebrafish, while an insignificant percentage of embryos developed to deformed zebrafish (1 ± 1)% or dead (3 ± 3)%. Interestingly, we did not observe dose-dependent effects of the Au NPs (0-20 pM) on embryonic development. By comparing with our previous studies of smaller Au NPs (11.6 ± 0.9 nm) and similar-sized Ag NPs (95.4 ± 16.0 nm), we found that the larger Au NPs are more biocompatible than the smaller Au NPs, while the similar-sized Ag NPs are much more toxic than Au NPs. This study offers in vivo assays and single NP microscopy and spectroscopy to characterize the biocompatibility and toxicity of single NPs, and new insights into the rational design of more biocompatible plasmonic NP imaging probes.
Collapse
Affiliation(s)
- Lauren M Browning
- Department of Chemistry and Biochemistry , Old Dominion University , Norfolk, VA 23529 , USA
| | - Tao Huang
- Department of Chemistry and Biochemistry , Old Dominion University , Norfolk, VA 23529 , USA
| | - Xiao-Hong Nancy Xu
- Department of Chemistry and Biochemistry , Old Dominion University , Norfolk, VA 23529 , USA
| |
Collapse
|
129
|
Duan J, Zhao D, Yang G. Fabrication of silver nanoparticles through reduction by ε-caprolactam without using protecting agent. RSC Adv 2014. [DOI: 10.1039/c4ra01675k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ε-Caprolactam was used as a multifunctional medium to synthesize silver nanoparticles, in which ε-caprolactam played three key roles including reducing agent, protecting agent and solvent.
Collapse
Affiliation(s)
- Jianping Duan
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, People's Republic of China
| | - Dajiang Zhao
- School of Chemical Engineering
- Hefei University of Technology
- Hefei 230009, People's Republic of China
| | - Guisheng Yang
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, People's Republic of China
- School of Chemical Engineering
- Hefei University of Technology
| |
Collapse
|
130
|
Garden AL, Scholz K, Schwass DR, Meledandri CJ. Optimized colloidal chemistry for micelle-templated synthesis and assembly of silver nanocomposite materials. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2013.09.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
131
|
Wang W, Yang M, Wang Z, Yan J, Liu C. Silver nanoparticle aggregates by room temperature electron reduction: preparation and characterization. RSC Adv 2014. [DOI: 10.1039/c4ra11803k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Silver nanoparticle aggregates were fabricated on AAO substrate via room temperature electron reduction. Their color depends on the size of the aggregate, rather than on the size of single AgNPs.
Collapse
Affiliation(s)
- Wei Wang
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072, China
| | - Manman Yang
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072, China
| | - Zongyuan Wang
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072, China
| | - Jinmao Yan
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072, China
| | - Changjun Liu
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072, China
| |
Collapse
|
132
|
Lee KJ, Browning LM, Nallathamby PD, Osgood CJ, Xu XHN. Silver nanoparticles induce developmental stage-specific embryonic phenotypes in zebrafish. NANOSCALE 2013; 5:11625-36. [PMID: 24056877 PMCID: PMC3833826 DOI: 10.1039/c3nr03210h] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Much is anticipated from the development and deployment of nanomaterials in biological organisms, but concerns remain regarding their biocompatibility and target specificity. Here we report our study of the transport, biocompatibility and toxicity of purified and stable silver nanoparticles (Ag NPs, 13.1 ± 2.5 nm in diameter) upon the specific developmental stages of zebrafish embryos using single NP plasmonic spectroscopy. We find that single Ag NPs passively diffuse into five different developmental stages of embryos (cleavage, early-gastrula, early-segmentation, late-segmentation, and hatching stages), showing stage-independent diffusion modes and diffusion coefficients. Notably, the Ag NPs induce distinctive stage and dose-dependent phenotypes and nanotoxicity, upon their acute exposure to the Ag NPs (0-0.7 nM) for only 2 h. The late-segmentation embryos are most sensitive to the NPs with the lowest critical concentration (CNP,c << 0.02 nM) and highest percentages of cardiac abnormalities, followed by early-segmentation embryos (CNP,c < 0.02 nM), suggesting that disruption of cell differentiation by the NPs causes the most toxic effects on embryonic development. The cleavage-stage embryos treated with the NPs develop into a wide variety of phenotypes (abnormal finfold, tail/spinal cord flexure, cardiac malformation/edema, yolk sac edema, and acephaly). These organ structures are not yet developed in cleavage-stage embryos, suggesting that the earliest determinative events to create these structures are ongoing, and disrupted by NPs, which leads to the downstream effects. In contrast, the hatching embryos are most resistant to the Ag NPs, and majority of embryos (94%) develop normally, and none of them develop abnormally. Interestingly, early-gastrula embryos are less sensitive to the NPs than cleavage and segmentation stage embryos, and do not develop abnormally. These important findings suggest that the Ag NPs are not simple poisons, and they can target specific pathways in development, and potentially enable target specific study and therapy for early embryonic development.
Collapse
Affiliation(s)
- Kerry J Lee
- Department of Chemistry, Biochemistry, Old Dominion University, Norfolk, VA 23529, USA.
| | | | | | | | | |
Collapse
|
133
|
Abdel-Mohsen AM, Abdel-Rahman RM, Fouda MMG, Vojtova L, Uhrova L, Hassan AF, Al-Deyab SS, El-Shamy IE, Jancar J. Preparation, characterization and cytotoxicity of schizophyllan/silver nanoparticle composite. Carbohydr Polym 2013; 102:238-45. [PMID: 24507278 DOI: 10.1016/j.carbpol.2013.11.040] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 11/01/2013] [Accepted: 11/26/2013] [Indexed: 11/30/2022]
Abstract
Silver nanoparticles (Ag-NPs) have been successfully prepared with a simple and "green" chemical reduction method. Triple helical schizophyllan (SPG) was used for the first time as reducing and stabilizing agents. The effect of temperature, silver nitrate/schizophyllan concentrations, pH of the reactions medium and the reaction time were investigated. The obtained schizophyllan/Ag-NP was characterized by UV-vis spectroscopy, TEM, DLS, X-ray diffraction, TGA, and ATR-FTIR. The results revealed that, Ag-NPs attached to SPG through a strong non-covalent interaction, leading to good dispersion of Ag-NPs with a diameter of 6 nm within the biopolymer matrix. By increasing the pH of the reaction medium, the triple helical structure of SPG was partially broken. The SPG/AgNP nanocomposite was non-toxic for mouse fibroblast line (NIH-3T3) and human keratinocyte cell line (HaCaT).
Collapse
Affiliation(s)
- A M Abdel-Mohsen
- Central European Institute of Technology (CEITEC), Brno University of Technology, Brno Czech Republic; Textile Research Division, National Research Center, Dokki, P.O. 12622, Giza 12522, Egypt.
| | - Rasha M Abdel-Rahman
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Czech Republic
| | - Moustafa M G Fouda
- Chemistry Department, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia; Textile Research Division, National Research Center, Dokki, P.O. 12622, Giza 12522, Egypt.
| | - L Vojtova
- Central European Institute of Technology (CEITEC), Brno University of Technology, Brno Czech Republic
| | - L Uhrova
- Institute of Materials Chemistry, Brno University of Technology, Czech Republic
| | - A F Hassan
- Chemistry Department, Faculty of Science, Damanhour University, Damanhour, Egypt
| | - Salem S Al-Deyab
- Chemistry Department, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Ibrahim E El-Shamy
- Chemistry Department, Faculty of Science, Fayoum University, Fayoum, Egypt
| | - J Jancar
- Central European Institute of Technology (CEITEC), Brno University of Technology, Brno Czech Republic; Institute of Materials Chemistry, Brno University of Technology, Czech Republic
| |
Collapse
|
134
|
Dui J, Zhu G, Zhou S. Facile and economical synthesis of large hollow ferrites and their applications in adsorption for As(V) and Cr(VI). ACS APPLIED MATERIALS & INTERFACES 2013; 5:10081-9. [PMID: 24066850 DOI: 10.1021/am402656t] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Unlike the previous ferrites (MFe2O4; M=Fe, Co, Zn, and Mn) solid nanospheres/nanoparticles, which were prepared by polluted solvothermal (glycol) approaches, here controllable monodisperse porous ferrites hollow nanospheres are promptly synthesized by a nontemplate hydrothermal method which has introduced an addition agent, polyacrylamide. The hollow nanospheres with different size can be prepared by varying the synthetic compositions. Scanning/transmission micros-graphs show the outside diameters of ferrite nanospheres are 180-380 nm and the shell thicknesses of that are only 20-45 nm, which could be adjusted by controlling CH3COONa concentration. X-ray diffraction (XRD) and X-ray photoelectron (XPS) spectroscopy, scanning electron (SEM) and transmission electron (TEM) microscopy, energy-dispersive spectrometer (EDS), the measurement of N2 adsorption-desorption isotherms and Brunauer-Emmett-Teller (BET) surface area, and superconducting quantum interference device (SQID) magnetometer were adopted to analyze their phase composition, morphology, porosity, and magnetic properties, respectively. The results of controlled experiments show that citrate and polyacrylamide are vital for the phase purities and morphology of ferrites. In particular, the as-obtained samples exhibit a large adsorption capacity for the toxic solution containing As(V) and Cr(VI) ions, and the calculated result of the maximum adsorption capacity is 340 mg/g based on Langmuir model, which shows excellent As(V) and Cr(VI) ions uptake capacity in contrast to other solid nanosphere materials.
Collapse
Affiliation(s)
- Jingna Dui
- Key Lab for Special Functional Materials of Ministry of Education, Henan University , 475004 Kaifeng, P. R. China
| | | | | |
Collapse
|
135
|
Siegel J, Polívková M, Kasálková NS, Kolská Z, Švorčík V. Properties of silver nanostructure-coated PTFE and its biocompatibility. NANOSCALE RESEARCH LETTERS 2013; 8:388. [PMID: 24044426 PMCID: PMC3856450 DOI: 10.1186/1556-276x-8-388] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Accepted: 09/10/2013] [Indexed: 05/17/2023]
Abstract
Silver nanolayers were sputtered on polytetrafluoroethylene (PTFE) and subsequently transformed into discrete nanoislands by thermal annealing. The Ag/PTFE composites prepared under different conditions were characterized by several complementary methods (goniometry, UV-visible spectroscopy, X-ray photoelectron spectroscopy, and atomic force microscopy), and new data on the mechanism of Ag layer growth and Ag atom clustering under annealing were obtained. Biocompatibility of selected Ag/PTFE composites was studied in vitro using vascular smooth muscle cell (VSMC) cultures. Despite of the well-known inhibitory properties of silver nanostructures towards broad spectrum of bacterial strains and cells, it was found that very thin silver coating stimulates both adhesion and proliferation of VSMCs.
Collapse
Affiliation(s)
- Jakub Siegel
- Department of Solid State Engineering, Institute of Chemical Technology, Prague 166 28, Czech Republic
| | - Markéta Polívková
- Department of Solid State Engineering, Institute of Chemical Technology, Prague 166 28, Czech Republic
| | | | - Zdeňka Kolská
- Faculty of Science, J.E. Purkyně University, Usti nad Labem 400 96, Czech Republic
| | - Václav Švorčík
- Department of Solid State Engineering, Institute of Chemical Technology, Prague 166 28, Czech Republic
| |
Collapse
|
136
|
Browning LM, Lee KJ, Nallathamby PD, Xu XHN. Silver nanoparticles incite size- and dose-dependent developmental phenotypes and nanotoxicity in zebrafish embryos. Chem Res Toxicol 2013; 26:1503-13. [PMID: 24024906 DOI: 10.1021/tx400228p] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nanomaterials possess distinctive physicochemical properties and promise a wide range of applications, from advanced technology to leading-edge medicine. However, their effects on living organisms remain largely unknown. Here we report that the purified silver nanoparticles (Ag NPs) (97 ± 13 nm) incite specific developmental stage embryonic phenotypes and nanotoxicity in a dose-dependent manner, upon acute exposure of given stage embryos to the NPs (0-24 pM) for only 2 h. The critical concentrations of the NPs that cause 50% of embryos to develop normally for cleavage, early gastrula, early segmentation, late segmentation, and hatching stage zebrafish embryos are 3.5, 4, 6, 6, and 8 pM, respectively, showing that the earlier developmental stage embryos are much more sensitive to the effects of the NPs than the later stage embryos. Interestingly, distinctive phenotypes (head abnormality and no eyes) are observed only in cleavage and early gastrula stage embryos treated with the NPs, showing the stage-specific effects of the NPs. By comparing these Ag NPs with smaller Ag NPs (13.1 ± 2.5 nm), we found that the embryonic phenotypes strikingly depend upon the sizes of Ag NPs and embryonic developmental stages. These notable findings suggest that the Ag NPs are unlike any conventional chemicals or ions. They can potentially enable target-specific study and therapy for early embryonic development in size-, stage-, dose-, and exposure duration-dependent manners.
Collapse
Affiliation(s)
- Lauren M Browning
- Department of Chemistry and Biochemistry, Old Dominion University , Norfolk, Virginia 23529, United States
| | | | | | | |
Collapse
|
137
|
Huang Y, Ferhan AR, Kim DH. Tunable scattered colors over a wide spectrum from a single nanoparticle. NANOSCALE 2013; 5:7772-7775. [PMID: 23842764 DOI: 10.1039/c3nr02718j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
By controlling the thickness of the silver shell, Au-Ag core-shell nanorods with quadruple plasmonic peaks corresponding to red, green, violet and deep violet regions have been prepared. Additionally, under polarized light, we achieved tunability of scattered colors from a single nanoparticle over an exceptionally wide wavelength range. The observed colors include red, orange, yellow, green, blue and purple.
Collapse
Affiliation(s)
- Youju Huang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 637457, Singapore
| | | | | |
Collapse
|
138
|
Yan JK, Cai PF, Cao XQ, Fan TT, Ma HL. Studies on Interaction of Polysaccharide-Templated Silver Nanoparticles with Bovine Serum Albumin. J Inorg Organomet Polym Mater 2013. [DOI: 10.1007/s10904-013-9940-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
139
|
Shin DY, Yi GR, Lee D, Park J, Lee YB, Hwang I, Chun S. Rapid two-step metallization through physicochemical conversion of Ag2O for printed "black" transparent conductive films. NANOSCALE 2013; 5:5043-5052. [PMID: 23640028 DOI: 10.1039/c3nr00962a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A rapid two-step metallization for fabrication of a "black" transparent conductive film on a flexible substrate for display applications is presented, using a mixture of silver oxide (Ag2O) and silver neodecanoate (C10H19AgO2), and its electrical conductivity and colour transition behaviours are investigated. Silver nanoparticles, which are physicochemically converted from silver oxide microparticles in the presence of silver neodecanoate in the course of the first metallization step at 150 °C for 10 min, are chemically annealed by immersing them in an acidic ferric chloride (FeCl3) solution at room temperature for 10 s. During this second metallization step, silver nanoparticles are found to be tightly packed through Ostwald ripening, which eventually leads to the dramatic enhancement of electrical conductivity by six orders of magnitude from 1.33 S m(-1) to 1.0 × 10(7) S m(-1), which corresponds to 15.9% of the electrical conductivity of bulk silver. In addition to the enhancement of electrical conductivity, the silver chloride (AgCl) layer formed on the surface of the silver layer due to ferric ions (Fe(3+)) enhances the blackness of the transparent conductive film by a factor of 1.69, from 36.29 B to 61.51 B. The sheet resistance and optical transparency of a roll-to-roll printed black transparent conductive film for a touch screen panel are found to be as low as 0.9 Ω□(-1) and 81%, respectively, after conducting the proposed two-step metallization.
Collapse
Affiliation(s)
- Dong-Youn Shin
- Department of Graphic Arts Information Engineering, Pukyong National University, Yongdang-dong, Nam-gu, Busan, 608-739, Republic of Korea
| | | | | | | | | | | | | |
Collapse
|
140
|
Yan JK, Cai PF, Cao XQ, Ma HL, Zhang Q, Hu NZ, Zhao YZ. Green synthesis of silver nanoparticles using 4-acetamido-TEMPO-oxidized curdlan. Carbohydr Polym 2013; 97:391-7. [PMID: 23911462 DOI: 10.1016/j.carbpol.2013.05.049] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2013] [Revised: 04/24/2013] [Accepted: 05/20/2013] [Indexed: 10/26/2022]
Abstract
A facile, simple, and eco-friendly method using 4-acetamido-2,2,6,6-tetramethypiperidine-1-oxyl radical-oxidized curdlan (Oc) as both reducing and stabilizing agents was developed for the fabrication of silver nanoparticles (AgNPs) from silver nitrate (AgNO₃). The structure, morphology, and particle size of the as-prepared AgNPs were investigated by ultraviolet-visible spectroscopy, transmission electron microscopy, energy dispersive X-ray spectrometry, X-ray diffraction, and dynamic laser light scattering. The well-dispersed AgNPs were sphere like with a mean diameter of 15 nm. Their formation was dependent on reaction duration, reaction temperature, Oc concentration, and AgNO₃ concentration. Fourier transform-infrared and Raman spectra demonstrated that the as-prepared AgNPs can readily bind covalently with the carboxylate groups of Oc through the strong monodentate interaction in the reaction medium.
Collapse
Affiliation(s)
- Jing-Kun Yan
- School of Food & Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China.
| | | | | | | | | | | | | |
Collapse
|
141
|
Lee KJ, Browning LM, Nallathamby PD, Xu XHN. Study of charge-dependent transport and toxicity of peptide-functionalized silver nanoparticles using zebrafish embryos and single nanoparticle plasmonic spectroscopy. Chem Res Toxicol 2013; 26:904-17. [PMID: 23621491 DOI: 10.1021/tx400087d] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Nanomaterials possess unusually high surface area-to-volume ratios and surface-determined physicochemical properties. It is essential to understand their surface-dependent toxicity in order to rationally design biocompatible nanomaterials for a wide variety of applications. In this study, we have functionalized the surfaces of silver nanoparticles (Ag NPs, 11.7 ± 2.7 nm in diameter) with three biocompatible peptides (CALNNK, CALNNS, CALNNE) to prepare positively (Ag-CALNNK NPs(+ζ)), negatively (Ag-CALNNS NPs(-2ζ)), and more negatively charged NPs (Ag-CALNNE NPs(-4ζ)), respectively. Each peptide differs in a single amino acid at its C-terminus, which minimizes the effects of peptide sequences and serves as a model molecule to create positive, neutral, and negative charges on the surface of the NPs at pH 4-10. We have studied their charge-dependent transport into early developing (cleavage-stage) zebrafish embryos and their effects on embryonic development using dark-field optical microscopy and spectroscopy (DFOMS). We found that all three Ag-peptide NPs passively diffused into the embryos via their chorionic pore canals, and stayed inside the embryos throughout their entire development (120 h), showing charge-independent diffusion modes and charge-dependent diffusion coefficients. Notably, the NPs create charge-dependent toxic effects on embryonic development, showing that the Ag-CALNNK NPs(+ζ) (positively charged) are the most biocompatible while the Ag-CALNNE NPs(-4ζ) (more negatively charged) are the most toxic. By comparing with our previous studies of the same sized citrated Ag and Au NPs, the Ag-peptide NPs are much more biocompatible than the citrated Ag NPs, and nearly as biocompatible as the Au NPs, showing the dependence of nanotoxicity upon the surface charges, surface functional groups, and chemical compositions of the NPs. This study also demonstrates powerful applications of single NP plasmonic spectroscopy for quantitative analysis of single NPs in vivo and in tissues, and reveals the possibility of rational design of biocompatible NPs.
Collapse
Affiliation(s)
- Kerry J Lee
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, Virginia 23529, USA
| | | | | | | |
Collapse
|
142
|
Tseng SC, Yu CC, Lin DC, Tseng YC, Chen HL, Chen YC, Chou SY, Wang LA. Laser-induced jets of nanoparticles: exploiting air drag forces to select the particle size of nanoparticle arrays. NANOSCALE 2013; 5:2421-2428. [PMID: 23400221 DOI: 10.1039/c3nr33835e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this study, we developed a new method-based on laser-induced jets of nanoparticles (NPs) and air drag forces-to select the particle size of NP arrays. First, the incident wavelength of an excimer laser was varied to ensure good photo-to-thermal energy conversion efficiency. We then exploited air drag forces to select NPs with sizes ranging from 5 to 50 nm at different captured distances. Controlling the jet distances allowed us to finely tune the localized surface plasmon resonance (LSPR) wavelength. The shifting range of the LSPR wavelengths of the corresponding NP arrays prepared using the laser-induced jet was wider than that of a single NP or an NP dimer. We further calculated the relationship between the air drag force and the diameter of the NPs to provide good control over the mean NP size (capture size ≧ 300 μm) by varying the capture distance. Laser-induced jets of NPs could also be used to fabricate NP arrays on a variety of substrates, including Si, glass, plastic, and paper. This method has the attractive features of rapid, large-area preparation in an ambient environment, no need for further thermal annealing treatment, ready control over mean particle size, and high selectivity in the positioning of NP arrays. Finally, we used this method to prepare large NP arrays for acting hot spots on surface-enhanced Raman scattering-active substrates, and 10(-12) M R6G can be detected. Besides, we also prepare small NP arrays to act as metal catalysts for constructing low-reflection, broadband light trapping nanostructures on Si substrates.
Collapse
Affiliation(s)
- Shao-Chin Tseng
- Department of Materials Science and Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | | | | | | | | | | | | | | |
Collapse
|
143
|
|
144
|
Rivero PJ, Goicoechea J, Urrutia A, Arregui FJ. Effect of both protective and reducing agents in the synthesis of multicolor silver nanoparticles. NANOSCALE RESEARCH LETTERS 2013; 8:101. [PMID: 23432942 PMCID: PMC3599970 DOI: 10.1186/1556-276x-8-101] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Accepted: 02/14/2013] [Indexed: 05/04/2023]
Abstract
In this paper, the influence of variable molar ratios between reducing and loading agents (1:100, 1:50, 1:20, 1:10, 1:5, 1:2, 1:1, 2:1) and between protective and loading agents (0.3:1, 0.75:1, 1.5:1, 3:1, 7.5:1, 30:1, 75:1) in the synthesis of silver nanoparticles by chemical reduction has been evaluated to obtain multicolor nanoparticles with a high stability in time. The protective agent poly(acrylic acid, sodium salt) (PAA) and reducing agent dimethylaminoborane (DMAB) play a key role in the formation of the resultant color. Evolution of the optical absorption bands of the silver nanoparticles as a function of PAA and DMAB molar ratios made it possible to confirm the presence of silver nanoparticles or clusters with a specific shape. The results reveal that a wide range of colors (violet, blue, green, brown, yellow, red, orange), sizes (from nanometer to micrometer), and shapes (cubic, rod, triangle, hexagonal, spherical) can be perfectly tuned by means of a fine control of the PAA and DMAB molar concentrations.
Collapse
Affiliation(s)
- Pedro Jose Rivero
- Nanostructured Optical Devices Laboratory, Electric and Electronic Engineering Department, Public University of Navarra, Edif. Los Tejos, Campus Arrosadía, Pamplona 31006, Spain
| | - Javier Goicoechea
- Nanostructured Optical Devices Laboratory, Electric and Electronic Engineering Department, Public University of Navarra, Edif. Los Tejos, Campus Arrosadía, Pamplona 31006, Spain
| | - Aitor Urrutia
- Nanostructured Optical Devices Laboratory, Electric and Electronic Engineering Department, Public University of Navarra, Edif. Los Tejos, Campus Arrosadía, Pamplona 31006, Spain
| | - Francisco Javier Arregui
- Nanostructured Optical Devices Laboratory, Electric and Electronic Engineering Department, Public University of Navarra, Edif. Los Tejos, Campus Arrosadía, Pamplona 31006, Spain
| |
Collapse
|
145
|
Xu S, Wang L, Li H, Yue Q, Li R, Liu J, Gu X, Zhang S. Copper ions mediated formation of three-dimensional self-assembled Ag nanostructures via a facile solution route. CrystEngComm 2013. [DOI: 10.1039/c3ce40771c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
146
|
Lee KJ, Nallathamby PD, Browning LM, Desai T, Cherukuri PK, Xu XHN. Single nanoparticle spectroscopy for real-time in vivo quantitative analysis of transport and toxicity of single nanoparticles in single embryos. Analyst 2012; 137:2973-86. [PMID: 22563577 DOI: 10.1039/c2an35293a] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Nanomaterials exhibit distinctive physicochemical properties and promise a wide range of applications from nanotechnology to nanomedicine, which raise serious concerns about their potential environmental impacts on ecosystems. Unlike any conventional chemicals, nanomaterials are highly heterogeneous, and their properties can alter over time. These unique characteristics underscore the importance of study of their properties and effects on living organisms in real time at single nanoparticle (NP) resolution. Here we report the development of single-NP plasmonic microscopy and spectroscopy (dark-field optical microscopy and spectroscopy, DFOMS) and ultrasensitive in vivo assay (cleavage-stage zebrafish embryos, critical aquatic species) to study transport and toxicity of single silver nanoparticles (Ag NPs, 95.4 ± 16.0 nm) on embryonic developments. We synthesized and characterized purified and stable (non-aggregation) Ag NPs, determined their sizes and doses (number), and their transport mechanisms and effects on embryonic development in vivo in real time at single-NP resolution. We found that single Ag NPs passively entered the embryos through their chorionic pores via random Brownian diffusion and stayed inside the embryos throughout their entire development (120 h), suggesting that the embryos can bio-concentrate trace NPs from their environment. Our studies show that higher doses and larger sizes of Ag NPs cause higher toxic effects on embryonic development, demonstrating that the embryos can serve as ultrasensitive in vivo assays to screen biocompatibility and toxicity of the NPs and monitor their potential release into aquatic ecosystems.
Collapse
Affiliation(s)
- Kerry J Lee
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA
| | | | | | | | | | | |
Collapse
|
147
|
Self-ordering anodized nanotubes: Enhancing the performance by surface plasmon for dye-sensitized solar cell. J SOLID STATE CHEM 2012. [DOI: 10.1016/j.jssc.2011.11.047] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
148
|
Huang T, Browning LM, Xu XHN. Far-field photostable optical nanoscopy (PHOTON) for real-time super-resolution single-molecular imaging of signaling pathways of single live cells. NANOSCALE 2012; 4:2797-2812. [PMID: 22331098 DOI: 10.1039/c2nr11739h] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Cellular signaling pathways play crucial roles in cellular functions and design of effective therapies. Unfortunately, study of cellular signaling pathways remains formidably challenging because sophisticated cascades are involved, and a few molecules are sufficient to trigger signaling responses of a single cell. Here we report the development of far-field photostable-optical-nanoscopy (PHOTON) with photostable single-molecule-nanoparticle-optical-biosensors (SMNOBS) for mapping dynamic cascades of apoptotic signaling pathways of single live cells in real-time at single-molecule (SM) and nanometer (nm) resolutions. We have quantitatively imaged single ligand molecules (tumor necrosis factor α, TNFα) and their binding kinetics with their receptors (TNFR1) on single live cells; tracked formation and internalization of their clusters and their initiation of intracellular signaling pathways in real-time; and studied apoptotic signaling dynamics and mechanisms of single live cells with sufficient temporal and spatial resolutions. This study provides new insights into complex real-time dynamic cascades and molecular mechanisms of apoptotic signaling pathways of single live cells. PHOTON provides superior imaging and sensing capabilities and SMNOBS offer unrivaled biocompatibility and photostability, which enable probing of signaling pathways of single live cells in real-time at SM and nm resolutions.
Collapse
Affiliation(s)
- Tao Huang
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA
| | | | | |
Collapse
|
149
|
Lee KJ, Browning LM, Nallathamby PD, Desai T, Cherukuri PK, Xu XHN. In vivo quantitative study of sized-dependent transport and toxicity of single silver nanoparticles using zebrafish embryos. Chem Res Toxicol 2012; 25:1029-46. [PMID: 22486336 DOI: 10.1021/tx300021u] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nanomaterials possess distinctive physicochemical properties (e.g., small sizes and high surface area-to-volume ratios) and promise a wide variety of applications, ranging from the design of high quality consumer products to effective disease diagnosis and therapy. These properties can lead to toxic effects, potentially hindering advances in nanotechnology. In this study, we have synthesized and characterized purified and stable (nonaggregation) silver nanoparticles (Ag NPs, 41.6 ± 9.1 nm in average diameter) and utilized early developing (cleavage-stage) zebrafish embryos (critical aquatic and eco- species) as in vivo model organisms to probe the diffusion and toxicity of Ag NPs. We found that single Ag NPs (30-72 nm diameters) passively diffused into the embryos through chorionic pores via random Brownian motion and stayed inside the embryos throughout their entire development (120 hours-post-fertilization, hpf). Dose- and size-dependent toxic effects of the NPs on embryonic development were observed, showing the possibility of tuning biocompatibility and toxicity of the NPs. At lower concentrations of the NPs (≤0.02 nM), 75-91% of embryos developed into normal zebrafish. At the higher concentrations of NPs (≥0.20 nM), 100% of embryos became dead. At the concentrations in between (0.02-0.2 nM), embryos developed into various deformed zebrafish. Number and sizes of individual Ag NPs embedded in tissues of normal and deformed zebrafish at 120 hpf were quantitatively analyzed, showing deformed zebrafish with higher number of larger NPs than normal zebrafish and size-dependent nanotoxicity. By comparing with our previous studies of smaller Ag NPs (11.6 ± 3.5 nm), we found striking size-dependent nanotoxicity that, at the same molar concentration, the larger Ag NPs (41.6 ± 9.1 nm) are more toxic than the smaller Ag NPs (11.6 ± 3.5 nm).
Collapse
Affiliation(s)
- Kerry J Lee
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, United States
| | | | | | | | | | | |
Collapse
|
150
|
Huang T, Cao W, Elsayed-Ali HE, Xu XHN. High-throughput ultrasensitive characterization of chemical, structural and plasmonic properties of EBL-fabricated single silver nanoparticles. NANOSCALE 2012; 4:380-385. [PMID: 22117236 DOI: 10.1039/c1nr11368b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Electron beam lithography (EBL) has become a popular means to prepare a wide variety of nano-arrays for numerous studies and applications, including photonics and sensors. Their fabrications and characterizations are costly and time consuming, underscoring the importance of developing effective tools to rapidly study their physicochemical stabilities and properties over time. In this study, we characterized EBL-fabricated single silver nanoparticle (Ag NP) arrays over their 12-week exposure to ambient conditions using SEM/EDS, AFM and dark-field optical microscopy and spectroscopy (DFOMS). We found that chemical compositions, structural morphologies and plasmonic optical properties of single NPs altered drastically over the exposure. Single cuboid and triangular-prism Ag NPs degraded at rates of (0.74 ± 0.02) and (0.66 ± 0.02) per week, and their localized surface plasmon resonance (LSPR) spectra showed striking blue-shifts (171 ± 25 and 203 ± 35 nm) over the 12-week exposure, respectively. Plasmonic colors of single NPs changed distinctively from red to green over the 12-week exposure. The LSPR spectra of individual NPs in each array were acquired simultaneously and correlated specifically with their SEM and AFM images, demonstrating that DFOMS can serve as high-throughput, ultrasensitive and non-invasive means to characterize chemical, structural and optical properties of nano-arrays in situ in real time at single-NP resolution.
Collapse
Affiliation(s)
- Tao Huang
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA
| | | | | | | |
Collapse
|