1
|
Dhamo L, Wegner KD, Würth C, Häusler I, Hodoroaba VD, Resch-Genger U. Assessing the influence of microwave-assisted synthesis parameters and stabilizing ligands on the optical properties of AIS/ZnS quantum dots. Sci Rep 2022; 12:22000. [PMID: 36539585 PMCID: PMC9767924 DOI: 10.1038/s41598-022-25498-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 11/30/2022] [Indexed: 12/24/2022] Open
Abstract
Luminescent semiconductor quantum dots (QDs) are frequently used in the life and material sciences as reporter for bioimaging studies and as active components in devices such as displays, light-emitting diodes, solar cells, and sensors. Increasing concerns regarding the use of toxic elements like cadmium and lead, and hazardous organic solvents during QD synthesis have meanwhile triggered the search for heavy-metal free QDs using green chemistry syntheses methods. Interesting candidates are ternary AgInS2 (AIS) QDs that exhibit broad photoluminescence (PL) bands, large effective Stokes shifts, high PL quantum yields (PL QYs), and long PL lifetimes, which are particularly beneficial for applications such as bioimaging, white light-emitting diodes, and solar concentrators. In addition, these nanomaterials can be prepared in high quality with a microwave-assisted (MW) synthesis in aqueous solution. The homogeneous heat diffusion and instant temperature rise of the MW synthesis enables a better control of QD nucleation and growth and thus increases the batch-to-batch reproducibility. In this study, we systematically explored the MW synthesis of AIS/ZnS QDs by varying parameters such as the order of reagent addition, precursor concentration, and type of stabilizing thiol ligand, and assessed their influence on the optical properties of the resulting AIS/ZnS QDs. Under optimized synthesis conditions, water-soluble AIS/ZnS QDs with a PL QY of 65% and excellent colloidal and long-term stability could be reproducible prepared.
Collapse
Affiliation(s)
- Lorena Dhamo
- grid.71566.330000 0004 0603 5458Division Biophotonics, Federal Institute for Materials Research and Testing (BAM), 12489 Berlin, Germany ,grid.7468.d0000 0001 2248 7639Departments of Physics, Humboldt Universität Zu Berlin, 12489 Berlin, Germany
| | - K. David Wegner
- grid.71566.330000 0004 0603 5458Division Biophotonics, Federal Institute for Materials Research and Testing (BAM), 12489 Berlin, Germany
| | - Christian Würth
- grid.71566.330000 0004 0603 5458Division Biophotonics, Federal Institute for Materials Research and Testing (BAM), 12489 Berlin, Germany
| | - Ines Häusler
- grid.7468.d0000 0001 2248 7639Departments of Physics, Humboldt Universität Zu Berlin, 12489 Berlin, Germany
| | - Vasile-Dan Hodoroaba
- grid.71566.330000 0004 0603 5458Division Surface Analysis and Interfacial Chemistry, Federal Institute for Materials Research and Testing (BAM), 12203 Berlin, Germany
| | - Ute Resch-Genger
- grid.71566.330000 0004 0603 5458Division Biophotonics, Federal Institute for Materials Research and Testing (BAM), 12489 Berlin, Germany
| |
Collapse
|
2
|
Ozdemir NK, Cline JP, Sakizadeh J, Collins SM, Brown AC, McIntosh S, Kiely CJ, Snyder MA. Sequential, low-temperature aqueous synthesis of Ag-In-S/Zn quantum dots via staged cation exchange under biomineralization conditions. J Mater Chem B 2022; 10:4529-4545. [PMID: 35608268 DOI: 10.1039/d2tb00682k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of high quality, non-toxic (i.e., heavy-metal-free), and functional quantum dots (QDs) via 'green' and scalable synthesis routes is critical for realizing truly sustainable QD-based solutions to diverse technological challenges. Herein, we demonstrate the low-temperature all-aqueous-phase synthesis of silver indium sulfide/zinc (AIS/Zn) QDs with a process initiated by the biomineralization of highly crystalline indium sulfide nanocrystals, and followed by the sequential staging of Ag+ cation exchange and Zn2+ addition directly within the biomineralization media without any intermediate product purification. Therein, we exploit solution phase cation concentration, the duration of incubation in the presence of In2S3 precursor nanocrystals, and the subsequent addition of Zn2+ as facile handles under biomineralization conditions for controlling QD composition, tuning optical properties, and improving the photoluminescence quantum yield of the AIS/Zn product. We demonstrate how engineering biomineralization for the synthesis of intrinsically hydrophilic and thus readily functionalizable AIS/Zn QDs with a quantum yield of 18% offers a 'green' and non-toxic materials platform for targeted bioimaging in sensitive cellular systems. Ultimately, the decoupling of synthetic steps helps unravel the complexities of ion exchange-based synthesis within the biomineralization platform, enabling its adaptation for the sustainable synthesis of 'green', compositionally diverse QDs.
Collapse
Affiliation(s)
- Nur Koncuy Ozdemir
- Dept. of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA 18015, USA.
| | - Joseph P Cline
- Dept. of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015, USA
| | - John Sakizadeh
- Dept. of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA 18015, USA.
| | - Shannon M Collins
- Dept. of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA 18015, USA.
| | - Angela C Brown
- Dept. of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA 18015, USA.
| | - Steven McIntosh
- Dept. of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA 18015, USA.
| | - Christopher J Kiely
- Dept. of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA 18015, USA. .,Dept. of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015, USA
| | - Mark A Snyder
- Dept. of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA 18015, USA.
| |
Collapse
|
3
|
Muñoz R, Santos EM, Guevara-Lara A, Vazquez-Garcia RA, Islas-Rodriguez N, Rodriguez JA. Fluorescence assay for acrylamide determination in fried products based on AgInS 2/ZnS quantum dots. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:1797-1802. [PMID: 35476040 DOI: 10.1039/d2ay00356b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
AgInS2/ZnS quantum dots were synthesized via solvothermal aqueous phase method using 3-mercaptopropionic acid as the stabilizer. AgInS2/ZnS quantum dots were employed for acrylamide sensing under two strategies: (1) quenching of the fluorescence signal by the synthesis of polyacrylamide under UV light and (2) use of 2-naphthalenethiol for quenching of the fluorescence signal of quantum dots followed by a recovery of the signal after the addition of acrylamide. Both methodologies display adequate limits of detection, 15.6 and 4.8 μg L-1, respectively. However, the 2-napthalenethiol based method exhibited better precision and selectivity compared to the other methodology. Both methodologies were applied for acrylamide detection in fried snack products and acceptable accuracy was obtained using 2-napthalenethiol method.
Collapse
Affiliation(s)
- Raybel Muñoz
- Area Academica de Quimica, Universidad Autonoma del Estado de Hidalgo, Carr. Pachuca-Tulancingo Km. 4.5, 42184, Mineral de la Reforma, Hidalgo, Mexico.
| | - Eva M Santos
- Area Academica de Quimica, Universidad Autonoma del Estado de Hidalgo, Carr. Pachuca-Tulancingo Km. 4.5, 42184, Mineral de la Reforma, Hidalgo, Mexico.
| | - Alfredo Guevara-Lara
- Area Academica de Quimica, Universidad Autonoma del Estado de Hidalgo, Carr. Pachuca-Tulancingo Km. 4.5, 42184, Mineral de la Reforma, Hidalgo, Mexico.
| | - Rosa A Vazquez-Garcia
- Area Academica de Ciencias de la Tierra y Materiales, Universidad Autonoma del Estado de Hidalgo, Cd. Universitaria, Carr. Pachuca-Tulancingo Km. 4.5., C.P. 42184, Mineral de la Reforma, Hidalgo, Mexico
| | - Nery Islas-Rodriguez
- Area Academica de Ciencias de la Tierra y Materiales, Universidad Autonoma del Estado de Hidalgo, Cd. Universitaria, Carr. Pachuca-Tulancingo Km. 4.5., C.P. 42184, Mineral de la Reforma, Hidalgo, Mexico
| | - Jose A Rodriguez
- Area Academica de Quimica, Universidad Autonoma del Estado de Hidalgo, Carr. Pachuca-Tulancingo Km. 4.5, 42184, Mineral de la Reforma, Hidalgo, Mexico.
| |
Collapse
|
4
|
Hashemkhani M, Loizidou M, MacRobert AJ, Yagci Acar H. One-Step Aqueous Synthesis of Anionic and Cationic AgInS 2 Quantum Dots and Their Utility in Improving the Efficacy of ALA-Based Photodynamic Therapy. Inorg Chem 2022; 61:2846-2863. [PMID: 35104130 PMCID: PMC8895404 DOI: 10.1021/acs.inorgchem.1c03298] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Indexed: 01/10/2023]
Abstract
Silver-indium-sulfide quantum dots (AIS QDs) have potential applications in many areas, including biomedicine. Their lack of regulated heavy metals, unlike many commercialized QDs, stands out as an advantage, but the necessity for alloyed or core-shell structures and related costly and sophisticated processes for the production of stable and high quantum yield aqueous AIS QDs are the current challenges. The present study demonstrates the one-step aqueous synthesis of simple AgInS2 QD compositions utilizing for the first time either a polyethyleneimine/2-mercaptopropionic acid (AIS-PEI/2MPA) mixture or only 2-mercaptopropionic acid (AIS-2MPA) as the stabilizing molecules, providing a AgInS2 portfolio consisting of cationic and anionic AIS QDs, respectively, and tuneable emission. Small AIS QDs with long-term stability and high quantum yields (19-23%) were achieved at a molar ratio of Ag/In/S 1/10/10 in water without any dopant or a semiconductor shell. The theranostic potential of these cationic and anionic AIS QDs was also evaluated in vitro. Non-toxic doses were determined, and fluorescence imaging potential was demonstrated. More importantly, these QDs were electrostatically loaded with zwitterionic 5-aminolevulinic acid (ALA) as a prodrug to enhance the tumor availability of ALA and to improve ALA-induced porphyrin photodynamic therapy (PDT). This is the first study investigating the influence of nanoparticle charge on ALA binding, release, and therapeutic efficacy. Surface charge was found to be more critical in cellular internalization and dark toxicity rather than drug loading and release. Both QDs provided enhanced ALA release at acidic pH but protected the prodrug at physiological pH, which is critical for tumor delivery of ALA, which suffers from low bioavailability. The PDT efficacy of the ALA-loaded AIS QDs was tested in 2D monolayers and 3D constructs of HT29 and SW480 human colon adenocarcinoma cancer cell lines. The incorporation of ALA delivery by the AIS QDs, which on their own do not cause phototoxicity, elicited significant cell death due to enhanced light-induced ROS generation and apoptotic/necrotic cell death, reducing the IC50 for ALA dramatically to about 0.1 and 0.01 mM in anionic and cationic AIS QDs, respectively. Combined with simple synthetic methods, the strong intracellular photoluminescence of AIS QDs, good biocompatibility of especially the anionic AIS QDs, and the ability to act as drug carriers for effective PDT signify that the AIS QDs, in particular AIS-2MPA, are highly promising theranostic QDs.
Collapse
Affiliation(s)
- Mahshid Hashemkhani
- Graduate
School of Materials Science and Engineering, Koç University, Rumelifeneri Yolu, Sariyer, Istanbul 34450, Turkey
| | - Marilena Loizidou
- Division
of Surgery and Interventional Science, Centre for Nanomedicine and
Surgical Theranostics, University College
London, Royal Free Campus, Rowland Hill Street, London NW3 2PE, U.K.
| | - Alexander J. MacRobert
- Division
of Surgery and Interventional Science, Centre for Nanomedicine and
Surgical Theranostics, University College
London, Royal Free Campus, Rowland Hill Street, London NW3 2PE, U.K.
| | - Havva Yagci Acar
- Graduate
School of Materials Science and Engineering, Koç University, Rumelifeneri Yolu, Sariyer, Istanbul 34450, Turkey
- Department
of Chemistry, Koç University, KUYTAM, Rumelifeneri Yolu, Sariyer, Istanbul 34450, Turkey
| |
Collapse
|
5
|
Borovaya M, Horiunova I, Plokhovska S, Pushkarova N, Blume Y, Yemets A. Synthesis, Properties and Bioimaging Applications of Silver-Based Quantum Dots. Int J Mol Sci 2021; 22:12202. [PMID: 34830084 PMCID: PMC8620749 DOI: 10.3390/ijms222212202] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/25/2021] [Accepted: 10/27/2021] [Indexed: 12/20/2022] Open
Abstract
Ag-based quantum dots (QDs) are semiconductor nanomaterials with exclusive electrooptical properties ideally adaptable for various biotechnological, chemical, and medical applications. Silver-based semiconductor nanocrystals have developed rapidly over the past decades. They have become a promising luminescent functional material for in vivo and in vitro fluorescent studies due to their ability to emit at the near-infrared (NIR) wavelength. In this review, we discuss the basic features of Ag-based QDs, the current status of classic (chemical) and novel methods ("green" synthesis) used to produce these QDs. Additionally, the advantages of using such organisms as bacteria, actinomycetes, fungi, algae, and plants for silver-based QDs biosynthesis have been discussed. The application of silver-based QDs as fluorophores for bioimaging application due to their fluorescence intensity, high quantum yield, fluorescent stability, and resistance to photobleaching has also been reviewed.
Collapse
Affiliation(s)
- Mariya Borovaya
- Institute of Food Biotechnology and Genomics, National Academy of Sciences of Ukraine, Osypovskoho Str. 2a, 04123 Kyiv, Ukraine; (I.H.); (S.P.); (N.P.); (Y.B.); (A.Y.)
| | | | | | | | | | | |
Collapse
|
6
|
Kuznetsova V, Osipova V, Tkach A, Miropoltsev M, Kurshanov D, Sokolova A, Cherevkov S, Zakharov V, Fedorov A, Baranov A, Gun’ko Y. Lab-on-Microsphere-FRET-Based Multiplex Sensor Platform. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:E109. [PMID: 33466522 PMCID: PMC7824841 DOI: 10.3390/nano11010109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 12/24/2020] [Accepted: 12/30/2020] [Indexed: 11/16/2022]
Abstract
Here we report on the development and investigation of a novel multiplex assay model based on polymer microspheres (PMS) encoded with ternary AIS/ZnS quantum dots (QDs). The system was prepared via layer-by-layer deposition technique. Our studies of Förster resonance energy transfer (FRET) between the QD-encoded microspheres and two different cyanine dyes have demonstrated that the QD photoluminescence (PL) quenching steadily increases with a decrease in the QD-dye distance. We have found that the sensitized dye PL intensity demonstrates a clear maximum at two double layers of polyelectrolytes between QDs and Dye molecules on the polymer microspheres. Time resolved PL measurements have shown that the PL lifetime decreases for the QDs and increases for the dyes due to FRET. The designed system makes it possible to record spectrally different bands of FRET-induced dye luminescence with different decay times and thereby allows for the multiplexing by wavelength and photoluminescence lifetimes of the dyes. We believe that PMS encoded with AIS/ZnS QDs have great potential for the development of new highly selective and sensitive sensor systems for multiplex analysis to detect cell lysates and body fluids' representative biomarkers.
Collapse
Affiliation(s)
- Vera Kuznetsova
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (V.O.); (A.T.); (M.M.); (D.K.); (A.S.); (S.C.); (V.Z.); (A.F.); (A.B.)
| | - Viktoria Osipova
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (V.O.); (A.T.); (M.M.); (D.K.); (A.S.); (S.C.); (V.Z.); (A.F.); (A.B.)
| | - Anton Tkach
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (V.O.); (A.T.); (M.M.); (D.K.); (A.S.); (S.C.); (V.Z.); (A.F.); (A.B.)
| | - Maksim Miropoltsev
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (V.O.); (A.T.); (M.M.); (D.K.); (A.S.); (S.C.); (V.Z.); (A.F.); (A.B.)
| | - Danil Kurshanov
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (V.O.); (A.T.); (M.M.); (D.K.); (A.S.); (S.C.); (V.Z.); (A.F.); (A.B.)
| | - Anastasiia Sokolova
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (V.O.); (A.T.); (M.M.); (D.K.); (A.S.); (S.C.); (V.Z.); (A.F.); (A.B.)
| | - Sergei Cherevkov
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (V.O.); (A.T.); (M.M.); (D.K.); (A.S.); (S.C.); (V.Z.); (A.F.); (A.B.)
| | - Viktor Zakharov
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (V.O.); (A.T.); (M.M.); (D.K.); (A.S.); (S.C.); (V.Z.); (A.F.); (A.B.)
| | - Anatoly Fedorov
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (V.O.); (A.T.); (M.M.); (D.K.); (A.S.); (S.C.); (V.Z.); (A.F.); (A.B.)
| | - Alexander Baranov
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (V.O.); (A.T.); (M.M.); (D.K.); (A.S.); (S.C.); (V.Z.); (A.F.); (A.B.)
| | - Yurii Gun’ko
- Chemistry School, Trinity College Dublin, 2 Dublin, Ireland
| |
Collapse
|
7
|
Perova T. Special Issue: Optical Characterizations of Novel Composite and Optically Active Materials. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E5263. [PMID: 33233341 PMCID: PMC7700201 DOI: 10.3390/ma13225263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 11/19/2020] [Indexed: 11/16/2022]
Abstract
Market pressures have placed new demands on modern photonic and opto-electronic materials, including requirements for miniaturization, higher efficiency, tunable and controllable optical and electrical properties, and consistent performance [...].
Collapse
Affiliation(s)
- Tatiana Perova
- Department of Electronic and Electrical Engineering, Trinity College Dublin, The University of Dublin, Dublin 2, Ireland
| |
Collapse
|
8
|
Spectral-Time Multiplexing in FRET Complexes of AgInS 2/ZnS Quantum Dot and Organic Dyes. NANOMATERIALS 2020; 10:nano10081569. [PMID: 32785050 PMCID: PMC7466523 DOI: 10.3390/nano10081569] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 07/30/2020] [Accepted: 08/03/2020] [Indexed: 12/19/2022]
Abstract
Nowadays, multiplex analysis is very popular, since it allows to detect a large number of biomarkers simultaneously. Traditional multiplex analysis is usually based on changes of photoluminescence (PL) intensity and/or PL band spectral positions in the presence of analytes. Using PL lifetime as an additional parameter might increase the efficiency of multiplex methods. Quantum dots (QDs) can be used as luminescent markers for multiplex analysis. Ternary in-based QDs are a great alternative to the traditional Cd-based one. Ternary QDs possess all advantages of traditional QDs, including tunable photoluminescence in visible range. At the same time ternary QDs do not have Cd-toxicity, and moreover they possess long spectral dependent lifetimes. This allows the use of ternary QDs as a donor for time-resolved multiplex sensing based on Förster resonance energy transfer (FRET). In the present work, we implemented FRET from AgInS2/ZnS ternary QDs to cyanine dyes absorbing in different spectral regions of QD luminescence with different lifetimes. As the result, FRET-induced luminescence of dyes differed not only in wavelengths but also in lifetimes of luminescence, which can be used for time-resolved multiplex analysis in biology and medicine.
Collapse
|
9
|
Investigation of Magnetic Circular Dichroism Spectra of Semiconductor Quantum Rods and Quantum Dot-in-Rods. NANOMATERIALS 2020; 10:nano10061059. [PMID: 32486321 PMCID: PMC7352828 DOI: 10.3390/nano10061059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/05/2020] [Accepted: 05/12/2020] [Indexed: 12/22/2022]
Abstract
Anisotropic quantum nanostructures have attracted a lot of attention due to their unique properties and a range of potential applications. Magnetic circular dichroism (MCD) spectra of semiconductor CdSe/ZnS Quantum Rods and CdSe/CdS Dot-in-Rods have been studied. Positions of four electronic transitions were determined by data fitting. MCD spectra were analyzed in the A and B terms, which characterize the splitting and mixing of states. Effective values of A and B terms were determined for each transition. A relatively high value of the B term is noted, which is most likely associated with the anisotropy of quantum rods.
Collapse
|