1
|
Német N, Lawson HS, Holló G, Valletti N, Rossi F, Schuszter G, Lagzi I. Non-autonomous zinc-methylimidazole oscillator and the formation of layered precipitation structures in a hydrogel. Sci Rep 2023; 13:11029. [PMID: 37419884 PMCID: PMC10329012 DOI: 10.1038/s41598-023-37954-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 06/30/2023] [Indexed: 07/09/2023] Open
Abstract
Oscillations are one of the intrinsic features of many animate and inanimate systems. The oscillations manifest in the temporal periodic change of one or several physical quantities describing the systems. In chemistry and biology, this physical quantity is the concentration of the chemical species. In most chemical oscillatory systems operating in batch or open reactors, the oscillations persist because of the sophisticated chemical reaction networks incorporating autocatalysis and negative feedback. However, similar oscillations can be generated by periodically changing the environment providing non-autonomous oscillatory systems. Here we present a new strategy for designing a non-autonomous chemical oscillatory system for the zinc-methylimidazole. The oscillations manifested in the periodic change of the turbidity utilizing the precipitation reaction between the zinc ions and 2-methylimidazole (2-met) followed by a partial dissolution of the formed precipitate due to a synergetic effect governed by the ratio of the 2-met in the system. Extending our idea spatiotemporally, we also show that these precipitation and dissolution phenomena can be utilized to create layered precipitation structures in a solid agarose hydrogel.
Collapse
Affiliation(s)
- Norbert Német
- Department of Physics, Institute of Physics, Budapest University of Technology and Economics, Műegyetem Rkp. 3, Budapest, 1111, Hungary
| | - Hugh Shearer Lawson
- Department of Physics, Institute of Physics, Budapest University of Technology and Economics, Műegyetem Rkp. 3, Budapest, 1111, Hungary
| | - Gábor Holló
- ELKH-BME Condensed Matter Research Group, Budapest University of Technology and Economics, Műegyetem Rkp. 3, Budapest, 1111, Hungary
| | - Nadia Valletti
- Department of Earth, Environmental and Physical Sciences, University of Siena, Pian Dei Mantellini 44, 53100, Siena, Italy
| | - Federico Rossi
- Department of Earth, Environmental and Physical Sciences, University of Siena, Pian Dei Mantellini 44, 53100, Siena, Italy
| | - Gábor Schuszter
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla Tér 1, Szeged, 6720, Hungary
| | - István Lagzi
- Department of Physics, Institute of Physics, Budapest University of Technology and Economics, Műegyetem Rkp. 3, Budapest, 1111, Hungary.
- ELKH-BME Condensed Matter Research Group, Budapest University of Technology and Economics, Műegyetem Rkp. 3, Budapest, 1111, Hungary.
| |
Collapse
|
2
|
Lu S, Shen J, Fan C, Li Q, Yang X. DNA Assembly-Based Stimuli-Responsive Systems. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2100328. [PMID: 34258165 PMCID: PMC8261508 DOI: 10.1002/advs.202100328] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 03/05/2021] [Indexed: 05/06/2023]
Abstract
Stimuli-responsive designs with exogenous stimuli enable remote and reversible control of DNA nanostructures, which break many limitations of static nanostructures and inspired development of dynamic DNA nanotechnology. Moreover, the introduction of various types of organic molecules, polymers, chemical bonds, and chemical reactions with stimuli-responsive properties development has greatly expand the application scope of dynamic DNA nanotechnology. Here, DNA assembly-based stimuli-responsive systems are reviewed, with the focus on response units and mechanisms that depend on different exogenous stimuli (DNA strand, pH, light, temperature, electricity, metal ions, etc.), and their applications in fields of nanofabrication (DNA architectures, hybrid architectures, nanomachines, and constitutional dynamic networks) and biomedical research (biosensing, bioimaging, therapeutics, and theranostics) are discussed. Finally, the opportunities and challenges for DNA assembly-based stimuli-responsive systems are overviewed and discussed.
Collapse
Affiliation(s)
- Shasha Lu
- School of Chemistry and Chemical EngineeringFrontiers Science Center for Transformative MoleculesInstitute of Translational MedicineShanghai Jiao Tong UniversityShanghai200240China
| | - Jianlei Shen
- School of Chemistry and Chemical EngineeringFrontiers Science Center for Transformative MoleculesInstitute of Translational MedicineShanghai Jiao Tong UniversityShanghai200240China
| | - Chunhai Fan
- School of Chemistry and Chemical EngineeringFrontiers Science Center for Transformative MoleculesInstitute of Translational MedicineShanghai Jiao Tong UniversityShanghai200240China
- Institute of Molecular MedicineShanghai Key Laboratory for Nucleic Acid Chemistry and NanomedicineDepartment of UrologyRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China
| | - Qian Li
- School of Chemistry and Chemical EngineeringFrontiers Science Center for Transformative MoleculesInstitute of Translational MedicineShanghai Jiao Tong UniversityShanghai200240China
| | - Xiurong Yang
- School of Chemistry and Chemical EngineeringFrontiers Science Center for Transformative MoleculesInstitute of Translational MedicineShanghai Jiao Tong UniversityShanghai200240China
| |
Collapse
|
3
|
Karthäuser S, Peter S, Simon U. Integration of Individual Functionalized Gold Nanoparticles into Nanoelectrode Configurations: Recent Advances. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Silvia Karthäuser
- Peter Grünberg Institut (PGI‐7) and JARA‐FIT Forschungszentrum Jülich GmbH 52425 Jülich Germany
| | - Sophia Peter
- Institute of Inorganic Chemistry and JARA‐FIT RWTH Aachen University 52074 Aachen Germany
| | - Ulrich Simon
- Institute of Inorganic Chemistry and JARA‐FIT RWTH Aachen University 52074 Aachen Germany
| |
Collapse
|
4
|
Yu Y, Jin B, Li Y, Deng Z. Stimuli-Responsive DNA Self-Assembly: From Principles to Applications. Chemistry 2019; 25:9785-9798. [PMID: 30931536 DOI: 10.1002/chem.201900491] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Indexed: 01/01/2023]
Abstract
Stimuli-responsive DNA self-assembly shares the advantages of both designed stimuli-responsiveness and the molecular programmability of DNA structures, offering great opportunities for basic and applied research in dynamic DNA nanotechnology. In this minireview, we summarize the most recent progress in this rapidly developing field. The trigger mechanisms of the responsive DNA systems are first divided into six categories, which are then explained with illustrative examples following this classification. Subsequently, proof-of-concept applications in terms of biosensing, in vivo pH-mapping, drug delivery, and therapy are discussed. Finally, we provide some remarks on the challenges and opportunities of this highly promising research direction in DNA nanotechnology.
Collapse
Affiliation(s)
- Yang Yu
- Anhui Province Key Laboratory of Advanced Catalytic Materials, and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Bang Jin
- Anhui Province Key Laboratory of Advanced Catalytic Materials, and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Yulin Li
- Anhui Province Key Laboratory of Advanced Catalytic Materials, and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Zhaoxiang Deng
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| |
Collapse
|
5
|
Li Y, Song L, Wang B, He J, Li Y, Deng Z, Mao C. Universal pH‐Responsive and Metal‐Ion‐Free Self‐Assembly of DNA Nanostructures. Angew Chem Int Ed Engl 2018; 57:6892-6895. [DOI: 10.1002/anie.201804054] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Yongfei Li
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering School of Chemistry and Chemical Engineering Hefei University of Technology Hefei Anhui 230009 China
| | - Lei Song
- CAS Key Laboratory of Soft Matter Chemistry Department of Chemistry University of Science and Technology of China Hefei Anhui 230026 China
| | - Bang Wang
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering School of Chemistry and Chemical Engineering Hefei University of Technology Hefei Anhui 230009 China
| | - Jianbo He
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering School of Chemistry and Chemical Engineering Hefei University of Technology Hefei Anhui 230009 China
| | - Yulin Li
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering School of Chemistry and Chemical Engineering Hefei University of Technology Hefei Anhui 230009 China
| | - Zhaoxiang Deng
- CAS Key Laboratory of Soft Matter Chemistry Department of Chemistry University of Science and Technology of China Hefei Anhui 230026 China
| | - Chengde Mao
- Department of Chemistry Purdue University West Lafayette IN 47907 USA
| |
Collapse
|
6
|
Li Y, Song L, Wang B, He J, Li Y, Deng Z, Mao C. Universal pH‐Responsive and Metal‐Ion‐Free Self‐Assembly of DNA Nanostructures. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804054] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yongfei Li
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering School of Chemistry and Chemical Engineering Hefei University of Technology Hefei Anhui 230009 China
| | - Lei Song
- CAS Key Laboratory of Soft Matter Chemistry Department of Chemistry University of Science and Technology of China Hefei Anhui 230026 China
| | - Bang Wang
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering School of Chemistry and Chemical Engineering Hefei University of Technology Hefei Anhui 230009 China
| | - Jianbo He
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering School of Chemistry and Chemical Engineering Hefei University of Technology Hefei Anhui 230009 China
| | - Yulin Li
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering School of Chemistry and Chemical Engineering Hefei University of Technology Hefei Anhui 230009 China
| | - Zhaoxiang Deng
- CAS Key Laboratory of Soft Matter Chemistry Department of Chemistry University of Science and Technology of China Hefei Anhui 230026 China
| | - Chengde Mao
- Department of Chemistry Purdue University West Lafayette IN 47907 USA
| |
Collapse
|
7
|
Plasmonic-based colorimetric and spectroscopic discrimination of acetic and butyric acids produced by different types of Escherichia coli through the different assembly structures formation of gold nanoparticles. Anal Chim Acta 2016; 933:196-206. [DOI: 10.1016/j.aca.2016.05.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 05/18/2016] [Accepted: 05/24/2016] [Indexed: 11/23/2022]
|
8
|
Tisserant JN, Reissner PA, Beyer H, Fedoryshyn Y, Stemmer A. Water-Mediated Assembly of Gold Nanoparticles into Aligned One-Dimensional Superstructures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:7220-7. [PMID: 26072942 DOI: 10.1021/acs.langmuir.5b01135] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
This Article shows that water in ethanol colloids of gold nanoparticles enhances the formation of linear clusters and, more important for applications in electronics, determines their assembly on surfaces. We show by dynamic light scattering that ethanol colloids contain mainly monomers and dimers and that wormlike superstructures are mostly absent, despite UV-vis evidence of aggregation. Water added to the colloid as a cosolvent was found to enhance the number of clusters as well as their average size, confirming its role in linear self-assembly, on the scale of a few particles. Water adsorbed from the atmosphere during coating was also found to be a powerful lever to tune self-assembly on surfaces. By varying the relative humidity, a sharp transition from branched to linear superstructures was observed, showing the importance of water as a cosolvent in the formation of cluster superstructures. We show that one-dimensional superstructures may form due to long-range mobility of precursor clusters on wet surfaces, allowing their rearrangement. The understanding of the phenomenon allows us to statistically align both clusters and resulting superstructures on patterned substrates, opening the way to rapid screening in molecular electronics.
Collapse
Affiliation(s)
| | - Patrick A Reissner
- †Nanotechnology Group, ETH Zurich, Säumerstrasse 4, CH-8803 Rüschlikon, Switzerland
| | - Hannes Beyer
- †Nanotechnology Group, ETH Zurich, Säumerstrasse 4, CH-8803 Rüschlikon, Switzerland
| | - Yuriy Fedoryshyn
- ‡Institute of Electromagnetic Fields, ETH Zurich, Gloriastrasse 35, CH-8092 Zurich, Switzerland
| | - Andreas Stemmer
- †Nanotechnology Group, ETH Zurich, Säumerstrasse 4, CH-8803 Rüschlikon, Switzerland
| |
Collapse
|
9
|
Wang H, Li Y, Liu M, Gong M, Deng Z. Overcoming the Coupling Dilemma in DNA-Programmable Nanoparticle Assemblies by "Ag+ Soldering". SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:2247-2251. [PMID: 25641776 DOI: 10.1002/smll.201403108] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 11/20/2014] [Indexed: 06/04/2023]
Abstract
Strong coupling between nanoparticles is critical for facilitating charge and energy transfers. Despite the great success of DNA-programmable nanoparticle assemblies, the very weak interparticle coupling represents a key barrier to various applications. Here, an extremely simple, fast, and highly efficient process combining DNA-programming and molecular/ionic bonding is developed to address this challenge, which exhibits a seamless fusion with DNA nanotechnology.
Collapse
Affiliation(s)
- Huiqiao Wang
- CAS Key Laboratory of Soft Matter Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, P.R. China
| | - Yulin Li
- CAS Key Laboratory of Soft Matter Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, P.R. China
| | - Miao Liu
- CAS Key Laboratory of Soft Matter Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, P.R. China
| | - Ming Gong
- Engineering and Materials Science Experiment Center, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, P.R. China
| | - Zhaoxiang Deng
- CAS Key Laboratory of Soft Matter Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, P.R. China
| |
Collapse
|
10
|
Maji B, Samanta SK, Bhattacharya S. Role of pH controlled DNA secondary structures in the reversible dispersion/precipitation and separation of metallic and semiconducting single-walled carbon nanotubes. NANOSCALE 2014; 6:3721-3730. [PMID: 24569668 DOI: 10.1039/c3nr05045a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Single-stranded DNA (ss-DNA) oligomers (dA20, d[(C3TA2)3C3] or dT20) are able to disperse single-walled carbon nanotubes (SWNTs) in water at pH 7 through non-covalent wrapping on the nanotube surface. At lower pH, an alteration of the DNA secondary structure leads to precipitation of the SWNTs from the dispersion. The structural change of dA20 takes place from the single-stranded to the A-motif form at pH 3.5 while in case of d[(C3TA2)3C3] the change occurs from the single-stranded to the i-motif form at pH 5. Due to this structural change, the DNA is no longer able to bind the nanotube and hence the SWNT precipitates from its well-dispersed state. However, this could be reversed on restoring the pH to 7, where the DNA again relaxes in the single-stranded form. In this way the dispersion and precipitation process could be repeated over and over again. Variable temperature UV-Vis-NIR and CD spectroscopy studies showed that the DNA-SWNT complexes were thermally stable even at ∼90 °C at pH 7. Broadband NIR laser (1064 nm) irradiation also demonstrated the stability of the DNA-SWNT complex against local heating introduced through excitation of the carbon nanotubes. Electrophoretic mobility shift assay confirmed the formation of a stable DNA-SWNT complex at pH 7 and also the generation of DNA secondary structures (A/i-motif) upon acidification. The interactions of ss-DNA with SWNTs cause debundling of the nanotubes from its assembly. Selective affinity of the semiconducting SWNTs towards DNA than the metallic ones enables separation of the two as evident from spectroscopic as well as electrical conductivity studies.
Collapse
Affiliation(s)
- Basudeb Maji
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India.
| | | | | |
Collapse
|
11
|
Kaulen C, Homberger M, Bourone S, Babajani N, Karthäuser S, Besmehn A, Simon U. Differential adsorption of gold nanoparticles to gold/palladium and platinum surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:574-583. [PMID: 24364737 DOI: 10.1021/la404110y] [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
Integration of molecule-capped gold nanoparticles (AuNP) into nanoelectronic devices requires detailed knowledge about the AuNP-electrode interface. Here, we report the pH-dependent adsorption of amine or carboxylic acid-terminated gold nanoparticles on platinum or gold/palladium (30% Pd) alloy, respectively. We synthesized amine-terminated AuNP, applying a new solid phase supported approach, as well as AuNP exhibiting carboxylic acid as terminal groups. The pH-induced agglomeration of the synthesized AuNP was investigated by UV-vis, DLS, and ζ-potential measurements. Depending on the pH and the ionic strength of the AuNP solution a preferential adsorption on the different metals occurred. Thereby, we demonstrate that by choosing the appropriate functional group and adjusting the pH as well as the ionic strength a directed binding can be achieved, which is an essential prerequisite for applications of these particles in nanoelectronics. These findings will pave the way for a controlled designing of the interface between molecule-capped AuNP and metallic electrodes for applications in nanoelectronics.
Collapse
Affiliation(s)
- Corinna Kaulen
- Institute of Inorganic Chemistry and JARA - Fundamentals of Future Information Technologies, RWTH Aachen University , 52074 Aachen, Germany
| | | | | | | | | | | | | |
Collapse
|
12
|
Qiu D, Wang S, Zheng Y, Deng Z. One at a time: counting single-nanoparticle/electrode collisions for accurate particle sizing by overcoming the instability of gold nanoparticles under electrolytic conditions. NANOTECHNOLOGY 2013; 24:505707. [PMID: 24269991 DOI: 10.1088/0957-4484/24/50/505707] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In response to an increasing demand for understanding electrochemical processes on the nanometer scale, it now becomes possible to monitor electron transfer reactions at the single-nanoparticle level, namely particle collision electrochemistry. This technique has great potential in the development of research tools towards single-particle electrocatalysis and selective and multiplexed particle sizing. However, one existing problem that may discourage these applications is the relatively weak colloidal stability of nanoparticles in an electrolytic solution. Here we report on a facile but efficient way to achieve a good stability of gold nanoparticles in an acidic media so that 'zero-aggregation' collisions can be achieved at a carbon ultramicroelectrode. This allows us to obtain anodic dissolution currents from individual nanoparticles in a 'one particle at a time' manner, based on which accurate particle sizing with a resolution of 1-2 nm can be achieved. Our work strongly suggests that to maintain a well dispersed nanoparticle solution during a particle impact electrochemical experiment is critically important for accurate particle sizing, as well as other applications that require information to be extracted from individual nanoparticles (not their aggregates).
Collapse
Affiliation(s)
- Danfeng Qiu
- CAS Key Laboratory of Soft Matter Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | | | | | | |
Collapse
|
13
|
García-Cambero JP, Núñez García M, López GD, Herranz AL, Cuevas L, Pérez-Pastrana E, Cuadal JS, Castelltort MR, Calvo AC. Converging hazard assessment of gold nanoparticles to aquatic organisms. CHEMOSPHERE 2013; 93:1194-1200. [PMID: 23916211 DOI: 10.1016/j.chemosphere.2013.06.074] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 06/05/2013] [Accepted: 06/20/2013] [Indexed: 06/02/2023]
Abstract
The gold nanoparticles (Au-NPs) are being increasingly used because of their huge diversity of applications, and consequently, elevated levels in the environment are expected. However, due to their physico-chemical properties and functionalization a high variety of Au-NPs can be found, and complete toxicological information for each type of Au-NPs still lacks, and even, the toxicological information for the same species is sometimes contradictory. Therefore, hazard assessment should be done case by case. Hence, the objective of this study was to obtain ecotoxicological information of the same Au-NPs in aquatic organisms and to find a rationale for Au-NPs toxicity. For such a purpose, bare and hyaluronic acid capped Au-NPs (12.5 nm) along with Au-NPs bulk material were tested on freshwater algae, Daphnia and zebrafish. Results showed that while gold nanoparticles were found to be harmless to the tested organisms, the soluble gold showed to be toxic to algae and Daphnia, with an LC50 between 1 and 2 mg L(-1). Comparing our results with those gathered in the literature, it appears that a common hazard assessment of Au-NPs on the studied organisms can be elucidated.
Collapse
Affiliation(s)
- Jesús Pablo García-Cambero
- Toxicology Area, National Centre for Environmental Health, ISCIII Health Institute, Ctra Majadahonda-Pozuelo km 2, 28220 Majadahonda, Madrid, Spain.
| | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Liu J, Legros S, von der Kammer F, Hofmann T. Natural organic matter concentration and hydrochemistry influence aggregation kinetics of functionalized engineered nanoparticles. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:4113-4120. [PMID: 23560437 DOI: 10.1021/es302447g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Understanding the colloidal stability of functionalized engineered nanoparticles (FENPs) in aquatic environments is of paramount importance in order to assess the risk related to FENPs. In this study, gold nanoparticles (GNPs) of 68 and 43 nm diameter, coated with citrate and 11-mercaptoundecanoic acid (MUA) respectively, were used as models of FENPs. Time-resolved dynamic light scattering was employed to investigate the aggregation kinetics of two types of GNPs. The results show that without Suwannee river natural organic matter (SRNOM), MUA coating resulted in greater stability than citrate coating for GNPs. Cations have a destabilizing effect on both GNPs following the order Ca(2+) ≈ Mg(2+) >> Na(+); different anions (Cl(-) and SO4(2-)) showed no difference in effects. In the fast aggregation regime, adding SRNOM enhanced the stability of MUA-coated GNPs in both Ca(2+) and Mg(2+) solutions. However citrate-coated GNPs were only stabilized in Mg(2+) solution but enhanced aggregation occurred in high Ca(2+) concentration due to interparticle bridging. For the investigated GNPs and in the presence of SRNOM, Ca(2+) does not always act as a strong coagulant. This indicates that for the new materials emerging from the application of nanotechnology the well-described aggregation mechanisms of colloids in the environment require a detailed re-examination.
Collapse
Affiliation(s)
- Junfeng Liu
- Department of Environmental Geosciences, University of Vienna, Althanstrasse 14 A-1090 Vienna
| | | | | | | |
Collapse
|
15
|
Teubl BJ, Meindl C, Eitzlmayr A, Zimmer A, Fröhlich E, Roblegg E. In-vitro permeability of neutral polystyrene particles via buccal mucosa. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:457-466. [PMID: 23112142 DOI: 10.1002/smll.201201789] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 08/30/2012] [Indexed: 06/01/2023]
Abstract
Drugs can be absorbed well in the oral cavity, which eliminates problems related to intestinal and hepatic first-pass metabolism. Although it is well-established that nanoparticles are small enough to penetrate/permeate epithelial barriers, there is no clear understanding of how they interact with the buccal mucosa. This work provides useful information regarding particle properties with regard to mucosal uptake and can be used for the rational design of nanocarriers. In the buccal mucosa, the uptake of neutral polystyrene nanoparticles (PP) is size-dependent. Compared to 25 and 50 nm particles, 200 nm PP particles penetrate into deeper regions of the mucosa. This is attributed to the structure of the buccal mucosa, i.e., mucus layer and microplicae. The particles permeate the mucus layer and deposit in ridge-like folds of superficial buccal cells. Thus, the effects of thermodynamic driving forces and/or interparticle electrostatic repulsion are enhanced and cellular uptake might be reduced for smaller particle sizes.
Collapse
Affiliation(s)
- Birgit Johanna Teubl
- Karl Franzens University of Graz, Institute of Pharmaceutical Sciences/Pharmaceutical Technology, Graz 8010, Austria
| | | | | | | | | | | |
Collapse
|
16
|
Ma X, Sim SJ. Femtomolar detection of single mismatches by discriminant analysis of DNA hybridization events using gold nanoparticles. Analyst 2013; 138:1794-802. [DOI: 10.1039/c2an36332a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
17
|
Zhan Z, Ma X, Cao C, Sim SJ. Gold-based optical biosensor for single-mismatched DNA detection using salt-induced hybridization. Biosens Bioelectron 2012; 32:127-32. [DOI: 10.1016/j.bios.2011.11.045] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2011] [Accepted: 11/25/2011] [Indexed: 11/28/2022]
|
18
|
Li Y, Han X, Deng Z. Logical regulations of the aggregation/dispersion of gold nanoparticles via programmed chemical interactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:9666-9670. [PMID: 21766873 DOI: 10.1021/la201617p] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Nanoparticles that respond to various chemical and physical stimuli form the basis for various conceivable applications including sensors, chemical logic, biomedical imaging, and therapies. In this work, we demonstrate that the electrostatic and chemical (complexing and gold-thiol bonding) interactions existing in a gold nanoparticle/Zn(2+)/dithiothreitol-based ternary chemical system is "programmable" and can be utilized to regulate the aggregation and dispersion of nanoparticles via XOR and INHIBIT logics. The resulting solutions alter their colors according to different input combinations because of the well-controlled aggregation or dispersion of plasmonic gold nanoparticles, opening up new possibilities for the developments of advanced sensors and nanobiomedical devices based on the coupling, gating, and signaling of different chemical stimuli.
Collapse
Affiliation(s)
- Yulin Li
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | | | | |
Collapse
|
19
|
Han X, Goebl J, Lu Z, Yin Y. Role of salt in the spontaneous assembly of charged gold nanoparticles in ethanol. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:5282-5289. [PMID: 21466161 DOI: 10.1021/la200459t] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
This paper investigates the role of salt in the spontaneous linear assembly of charged gold nanoparticles in ethanol and attempts to clear up a misunderstanding on the role of ethanol in this process. Many prior reports have noted that the addition of ethanol to an aqueous solution of gold nanoparticles causes their aggregation into linear assemblies. It was therefore believed that ethanol plays the determining role during the assembly process. In this work, we carried out systematic studies which indicate that residual salt in conjunction with ethanol, instead of ethanol itself, induces the assembly of gold nanoparticles in ethanol. In the absence of salt, gold nanoparticles can be well dispersed in an ethanol solution. Furthermore, we find that the chainlike assemblies can disassemble upon dilution of the salt or the evaporation of ethanol if the gold nanoparticles are protected with a sufficiently strong ligand.
Collapse
Affiliation(s)
- Xiaogang Han
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | | | | | | |
Collapse
|
20
|
Liu X, Yang J, Zhou C, Yin X, Liu H, Li Y, Li Y. Constructing hybrid films of conjugated oligomers and gold nanoparticles for efficient photoelectronic properties. Phys Chem Chem Phys 2011; 13:1984-9. [DOI: 10.1039/c0cp01116a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
21
|
Zhang B, Xu P, Xie X, Wei H, Li Z, Mack NH, Han X, Xu H, Wang HL. Acid-directed synthesis of SERS-active hierarchical assemblies of silver nanostructures. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm02837a] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
22
|
Abstract
In this communication, we report the preparation of DNA-SWNT hybrid hydrogel which is pH responsive and strength tunable.
Collapse
Affiliation(s)
- Enjun Cheng
- Key Laboratory of Organic Optoelectronics & Molecular Engineering of the Ministry of Education
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Yulin Li
- Department of Chemistry
- University of Science and Technology of China
- Anhui 230026
- China
| | - Zhongqiang Yang
- National Center for Nanoscience and Technology
- Beijing 100190
- China
| | - Zhaoxiang Deng
- Department of Chemistry
- University of Science and Technology of China
- Anhui 230026
- China
| | - Dongsheng Liu
- Key Laboratory of Organic Optoelectronics & Molecular Engineering of the Ministry of Education
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| |
Collapse
|
23
|
Lagzi I, Kowalczyk B, Wang D, Grzybowski BA. Nanoparticle Oscillations and Fronts. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201004231] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
24
|
Lagzi I, Kowalczyk B, Wang D, Grzybowski BA. Nanoparticle Oscillations and Fronts. Angew Chem Int Ed Engl 2010; 49:8616-9. [DOI: 10.1002/anie.201004231] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
25
|
Liu J, Li Y, Li Y, Li J, Deng Z. Noncovalent DNA decorations of graphene oxide and reduced graphene oxide toward water-soluble metal–carbon hybrid nanostructuresviaself-assembly. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b917752c] [Citation(s) in RCA: 146] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
26
|
Calvaresi M, Dallavalle M, Zerbetto F. Wrapping nanotubes with micelles, hemimicelles, and cylindrical micelles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2009; 5:2191-8. [PMID: 19642090 DOI: 10.1002/smll.200900528] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
This work uses a simple model based on hydrophobic and hydrophilic forces to investigate the molecular dynamics that lead to the supramolecular self-assembly of surfactants around carbon nanotubes (CNTs). The effects of the concentration and the structure of surfactants are explored. The bead-based mesoscopic description spontaneously develops the several micellar morphologies that are known to wrap and solvate CNTs.
Collapse
Affiliation(s)
- Matteo Calvaresi
- Dipartimento di Chimica G. Ciamician, Università di Bologna, V. F. Selmi 2, 40126 Bologna, Italy
| | | | | |
Collapse
|
27
|
Liang Y, Ozawa M, Krueger A. A general procedure to functionalize agglomerating nanoparticles demonstrated on nanodiamond. ACS NANO 2009; 3:2288-2296. [PMID: 19601635 DOI: 10.1021/nn900339s] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Upon reduction of particle size to the nanometer range, one has to deal with the general issue of spontaneous agglomeration, which often obstructs postsynthesis modification of nanoparticle surfaces. A technique to cope with this phenomenon is required to realize a wide variety of applications using nanoparticles in solvents or as refined assemblies. In this article, we report on a new technique to facilitate surface chemistry of nanoparticles in a conventional glassware system. A beads-assisted sonication (BASD) process was examined to break up persistent agglomerates of nanodiamonds in two different reactions for simultaneous surface functionalization. The chosen reactions are the silanization with an acrylate-modified silane and the arylation using diazonium salts. The BASD process can be successfully applied even where the original material is not dispersible in the reaction solvent at all, as the formation of ever smaller, increasingly functionalized agglomerates is improving their solubility. We have confirmed that the presence of ceramic beads enables functionalization of each primary particle, while conventional magnetic stirring or beadless sonication can reach primary particles only when agglomeration is loose. Additionally, mechanical surface modification of nanodiamond was found to take place by BASD with high energy density, leading to sp(2)-hybridized surface patches on nanodiamond. This allowed for the efficient grafting of aryl groups to the surface of primary diamond nanoparticles. Stable, homogeneously functionalized nanodiamond particles in colloidal solution can be obtained by this method.
Collapse
Affiliation(s)
- Yuejiang Liang
- Institut für Organische Chemie der Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | | | | |
Collapse
|
28
|
Park J, Yoon DY, Kim Y. Applications of silver nanoplates as colorimetric indicators of pH-induced conformational changes in cytochrome c. KOREAN J CHEM ENG 2009. [DOI: 10.1007/s11814-009-0043-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
29
|
Chen Y, Mao C. pH-induced reversible expansion/contraction of gold nanoparticle aggregates. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2008; 4:2191-2194. [PMID: 19016526 DOI: 10.1002/smll.200800569] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Affiliation(s)
- Yi Chen
- Purdue University, Department of Chemistry, West Lafayette, IN 47097, USA
| | | |
Collapse
|