1
|
Ziani Z, Bellatreccia C, Battaglia FP, Morselli G, Gradone A, Ceroni P, Villa M. Copper indium sulfide quantum dots enabling quantitative visible light photoisomerisation of ( E)-azobenzene chromophores. NANOSCALE 2024; 16:12947-12956. [PMID: 38912567 DOI: 10.1039/d4nr01997k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Azobenzene derivatives have long been studied for their photochromic behaviour. One of the greatest challenges in this field is the quantitative (E) to (Z) photoconversion triggered by visible light irradiation. In this work, the synthesis and characterization of CuInS2 quantum dots (CIS-QDs) appended with azobenzene units are reported: quantitative (E) → (Z) isomerisation is obtained by visible light (e.g., λex = 533 nm). Interestingly, catalytic amounts of CIS-QDs allow the full photoconversion of ungrafted (E)-azobenzene derivatives into the corresponding (Z)-isomers using visible light. This peculiar behaviour is associated with the direct complexation of the (Z)-isomer on the QD surface.
Collapse
Affiliation(s)
- Zakaria Ziani
- Department of Chemistry Ciamician, University of Bologna, Via Selmi 2, 40126 Bologna, Italy.
| | - Caterina Bellatreccia
- Department of Chemistry Ciamician, University of Bologna, Via Selmi 2, 40126 Bologna, Italy.
| | - Filippo Piero Battaglia
- Department of Chemistry Ciamician, University of Bologna, Via Selmi 2, 40126 Bologna, Italy.
| | - Giacomo Morselli
- Department of Chemistry Ciamician, University of Bologna, Via Selmi 2, 40126 Bologna, Italy.
| | - Alessandro Gradone
- Istituto per la Microelettronica ed i Microsistemi (IMM) - CNR Sede di Bologna, via Gobetti 101, 40129 Bologna, Italy
| | - Paola Ceroni
- Department of Chemistry Ciamician, University of Bologna, Via Selmi 2, 40126 Bologna, Italy.
| | - Marco Villa
- Department of Chemistry Ciamician, University of Bologna, Via Selmi 2, 40126 Bologna, Italy.
| |
Collapse
|
2
|
Mubeen M, Ain NU, Khalid MA, Mukhtar M, Naz B, Siddique Z, Ul-Hamid A, Iqbal A. Enhancing the FRET by tuning the bandgap of acceptor ternary ZnCdS quantum dots. RSC Adv 2023; 13:19096-19105. [PMID: 37362335 PMCID: PMC10288831 DOI: 10.1039/d3ra03233g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 06/16/2023] [Indexed: 06/28/2023] Open
Abstract
In this article, we report the band gap tuning of ternary ZnCdS quantum dots (QDs) by varying the concentration of the capping ligand, mercaptoacetic acid (MAA). The functionalization of QDs leads to the control of their size and band gap due to the quantum confinement effect, causing blue shift in the absorption and photoluminescence (PL) spectra with a gradual change in the concentration of the capping ligand from 0.5 to 2.5 M. Ensulizole (2-phenylbenzimidazole-5-sulfonic acid) is an important organic ultraviolet (UV) filter that is frequently used in sunscreen cosmetics. An effective overlapping of the PL spectrum of ensulizole and the absorption spectrum of QDs with 2.5 M MAA is achieved. A formidable decrease in the PL intensity and the PL lifetime of ensulizole promotes an efficient Förster resonance energy transfer (FRET) from sunscreen ensulizole to the QDs. The magnitude of the FRET efficiency (E) is ∼70%. This very high value of E is the signature of the existence of a very fast energy transfer process from ensulizole to the MAA functionalized ZnCdS QDs. The dyad system consisting of ZnCdS QDs and ensulizole sunscreen can serve as a prototype model to develop a better understanding of the photochemistry of ensulizole and consequently the formulation of more efficient sunscreen cosmetics.
Collapse
Affiliation(s)
- Muhammad Mubeen
- Department of Chemistry, Quaid-I-Azam University Islamabad-45320 Pakistan
| | - Noor Ul Ain
- Department of Chemistry, Quaid-I-Azam University Islamabad-45320 Pakistan
| | | | - Maria Mukhtar
- Department of Chemistry, Quaid-I-Azam University Islamabad-45320 Pakistan
| | - Bushra Naz
- Department of Chemistry, Quaid-I-Azam University Islamabad-45320 Pakistan
| | - Zumaira Siddique
- Department of Chemistry, Quaid-I-Azam University Islamabad-45320 Pakistan
| | - Anwar Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
| | - Azhar Iqbal
- Department of Chemistry, Quaid-I-Azam University Islamabad-45320 Pakistan
| |
Collapse
|
3
|
Cell Viability Study of ZnCuInS/ZnS–TPPS4 Conjugates against Different Cell Lines as a Promising Fluorescent Probe. ORGANICS 2023. [DOI: 10.3390/org4010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023] Open
Abstract
In the present work, we report a simple synthetic strategy for fabricating ZnCuInS/ZnS–TPPS4 conjugates and study its cytotoxicity as a promising material for imaging and phototherapy applications. The quaternary QDs were synthesized using eco-friendly materials such as glutathione and water as a solvent, while the anionic 10,15,20-(4-sulphonatophenyl) porphyrin (TPPS4) was synthesized via the acidification of a meso-tetraphenylporphyrin precursor. Interest in TPPS4 results from its high-water dispersity, stability, and ability to generate singlet oxygen. Conjugation of ZnCuInS/ZnS QDs with TPPS4 was performed by titrating porphyrin with different amounts of ZnCuInS/ZnS QDs while keeping all other experimental parameters constant. Comparative analysis of the conjugate to the bare QDs and porphyrin revealed enhanced spectral and photophysical properties. Comparative cytotoxicity assays were performed for TPPS4 and ZnCuInS/ZnS–TPPS4 conjugates in BHK21, Hela, A549, Hek 293 and B16-F10 Nex 2 cell lines using the MTT cell viability assay. The results showed negligible in vitro cytotoxicity indicating the conjugate is an excellent and biocompatible candidate for imaging and phototherapy applications.
Collapse
|
4
|
Fang Z, Huang Y, Zhang Y, ZHao F, Li F, ZHu Q, Jiang G. High selectivity and fluorescence reversible Eu 3+ sensor based on GSH-capped AgZnInS QDs. OPTICS LETTERS 2023; 48:944-947. [PMID: 36790981 DOI: 10.1364/ol.479298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 12/31/2022] [Indexed: 06/18/2023]
Abstract
Fluorescence sensors for trivalent europium ions (Eu3+) are seldom reported. We study the synthesis of water-soluble quaternary quantum dots (QDs) and investigate their fluorescence sensor application for detecting Eu3+ The as-synthesized glutathione (GSH)-capped AgZnInS (AZIS) QDs show great sensitivity and selectivity to Eu3+among 12 different metal cations. Detailed experimental results indicate that the fluorescence response of the AZIS QDs to increasing concentration of Eu3+ ([Eu3+]) include intensity quenching and peak wavelength blueshift. With the addition of OH-, the fluorescence response reverses. Electron transfer is considered to be the mechanism for the fluorescence quenching and peak wavelength blueshift of the GSH-capped AZIS QDs. Our work provides a new, to the best of our knowledge, method for the detection of Eu3+.
Collapse
|
5
|
Islas-Rodriguez N, Muñoz R, Rodriguez JA, Vazquez-Garcia RA, Reyes M. Integration of ternary I-III-VI quantum dots in light-emitting diodes. Front Chem 2023; 11:1106778. [PMID: 37035113 PMCID: PMC10076594 DOI: 10.3389/fchem.2023.1106778] [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: 11/24/2022] [Accepted: 03/13/2023] [Indexed: 04/11/2023] Open
Abstract
Ternary I-III-VI quantum dots (TQDs) are semiconductor nanomaterials that have been gradually incorporated in the fabrication of light-emitting diodes (LEDs) over the last 10 years due to their physicochemical and photoluminescence properties, such as adequate quantum yield values, tunable wavelength emission, and easy synthesis strategies, but mainly because of their low toxicity that allows them to be excellent candidates to compete with conventional Cd-Pb-based QDs. This review addresses the different strategies to obtain TQDs and how synthesis conditions influence their physicochemical properties, followed by the LEDs parameters achieved using TQDs. The second part of the review summarizes how TQDs are integrated into LEDs and white light-emitting diodes (WLEDs). Furthermore, an insight into the state-of-the-art LEDs development using TQDs, including its advantages and disadvantages and the challenges to overcome, is presented at the end of the review.
Collapse
Affiliation(s)
- Nery Islas-Rodriguez
- Universidad Autonoma del Estado de Hidalgo (UAEH). Area Academica de Ciencias de La Tierra y Materiales, Hgo, Mexico
| | - Raybel Muñoz
- Universidad Autonoma del Estado de Hidalgo (UAEH). Area Academica de Quimica, Hidalgo, Mineral de la Reforma, Mexico
| | - Jose A. Rodriguez
- Universidad Autonoma del Estado de Hidalgo (UAEH). Area Academica de Quimica, Hidalgo, Mineral de la Reforma, Mexico
| | - Rosa A. Vazquez-Garcia
- Universidad Autonoma del Estado de Hidalgo (UAEH). Area Academica de Ciencias de La Tierra y Materiales, Hgo, Mexico
| | - Martin Reyes
- Universidad Autonoma del Estado de Hidalgo (UAEH). Area Academica de Ciencias de La Tierra y Materiales, Hgo, Mexico
- *Correspondence: Martin Reyes,
| |
Collapse
|
6
|
Sanmartín-Matalobos J, Bermejo-Barrera P, Aboal-Somoza M, Fondo M, García-Deibe AM, Corredoira-Vázquez J, Alves-Iglesias Y. Semiconductor Quantum Dots as Target Analytes: Properties, Surface Chemistry and Detection. NANOMATERIALS 2022; 12:nano12142501. [PMID: 35889725 PMCID: PMC9318497 DOI: 10.3390/nano12142501] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 07/17/2022] [Accepted: 07/19/2022] [Indexed: 02/04/2023]
Abstract
Since the discovery of Quantum Dots (QDs) by Alexey I. Ekimov in 1981, the interest of researchers in that particular type of nanomaterials (NMs) with unique optical and electrical properties has been increasing year by year. Thus, since 2009, the number of scientific articles published on this topic has not been less than a thousand a year. The increasing use of QDs due to their biomedical, pharmaceutical, biological, photovoltaics or computing applications, as well as many other high-tech uses such as for displays and solid-state lighting (SSL), has given rise to a considerable number of studies about its potential toxicity. However, there are a really low number of reported studies on the detection and quantification of QDs, and these include ICP–MS and electrochemical analysis, which are the most common quantification techniques employed for this purpose. The knowledge of chemical phenomena occurring on the surface of QDs is crucial for understanding the interactions of QDs with species dissolved in the dispersion medium, while it paves the way for a widespread use of chemosensors to facilitate its detection. Keeping in mind both human health and environmental risks of QDs as well as the scarcity of analytical techniques and methodological approaches for their detection, the adaptation of existing techniques and methods used with other NMs appears necessary. In order to provide a multidisciplinary perspective on QD detection, this review focused on three interrelated key aspects of QDs: properties, surface chemistry and detection.
Collapse
Affiliation(s)
- Jesús Sanmartín-Matalobos
- Coordination and Supramolecular Chemistry Group (SupraMetal), Department of Inorganic Chemistry, Faculty of Chemistry, Institute of Materials (iMATUS), Universidade de Santiago de Compostela, Avenida das Ciencias s/n, 15782 Santiago de Compostela, Spain; (M.F.); (J.C.-V.); (Y.A.-I.)
- Correspondence: (J.S.-M.); (A.M.G.-D.)
| | - Pilar Bermejo-Barrera
- Trace Element, Speciation and Spectroscopy Group (GETEE), Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Institute of Materials (iMATUS), Universidade de Santiago de Compostela, Avenida das Ciencias s/n, 15782 Santiago de Compostela, Spain; (P.B.-B.); (M.A.-S.)
| | - Manuel Aboal-Somoza
- Trace Element, Speciation and Spectroscopy Group (GETEE), Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Institute of Materials (iMATUS), Universidade de Santiago de Compostela, Avenida das Ciencias s/n, 15782 Santiago de Compostela, Spain; (P.B.-B.); (M.A.-S.)
| | - Matilde Fondo
- Coordination and Supramolecular Chemistry Group (SupraMetal), Department of Inorganic Chemistry, Faculty of Chemistry, Institute of Materials (iMATUS), Universidade de Santiago de Compostela, Avenida das Ciencias s/n, 15782 Santiago de Compostela, Spain; (M.F.); (J.C.-V.); (Y.A.-I.)
| | - Ana M. García-Deibe
- Coordination and Supramolecular Chemistry Group (SupraMetal), Department of Inorganic Chemistry, Faculty of Chemistry, Institute of Materials (iMATUS), Universidade de Santiago de Compostela, Avenida das Ciencias s/n, 15782 Santiago de Compostela, Spain; (M.F.); (J.C.-V.); (Y.A.-I.)
- Correspondence: (J.S.-M.); (A.M.G.-D.)
| | - Julio Corredoira-Vázquez
- Coordination and Supramolecular Chemistry Group (SupraMetal), Department of Inorganic Chemistry, Faculty of Chemistry, Institute of Materials (iMATUS), Universidade de Santiago de Compostela, Avenida das Ciencias s/n, 15782 Santiago de Compostela, Spain; (M.F.); (J.C.-V.); (Y.A.-I.)
| | - Yeneva Alves-Iglesias
- Coordination and Supramolecular Chemistry Group (SupraMetal), Department of Inorganic Chemistry, Faculty of Chemistry, Institute of Materials (iMATUS), Universidade de Santiago de Compostela, Avenida das Ciencias s/n, 15782 Santiago de Compostela, Spain; (M.F.); (J.C.-V.); (Y.A.-I.)
- Trace Element, Speciation and Spectroscopy Group (GETEE), Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Institute of Materials (iMATUS), Universidade de Santiago de Compostela, Avenida das Ciencias s/n, 15782 Santiago de Compostela, Spain; (P.B.-B.); (M.A.-S.)
| |
Collapse
|
7
|
Emerging Roles of Green-Synthesized Chalcogen and Chalcogenide Nanoparticles in Cancer Theranostics. JOURNAL OF NANOTECHNOLOGY 2022. [DOI: 10.1155/2022/6176610] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The last few decades have seen an overwhelming increase in the amount of research carried out on the use of inorganic nanoparticles. More fascinating is the tremendous progress made in the use of chalcogen and chalcogenide nanoparticles in cancer theranostics. These nanomaterials, which were initially synthesized through chemical methods, have now been efficiently produced using different plant materials. The paradigm shift towards the biogenic route of nanoparticle synthesis stems from its superior advantages of biosafety, eco-friendliness, and simplicity, among others. Despite a large number of reviews available on inorganic nanoparticle synthesis through green chemistry, there is currently a dearth of information on the green synthesis of chalcogens and chalcogenides for cancer research. Nanoformulations involving chalcogens such as sulfur, selenium, and tellurium and their respective chalcogenides have recently emerged as promising tools in cancer therapeutics and diagnosis. Similar to other inorganic nanoparticles, chalcogens and chalcogenides have been synthesized using plant extracts and their purified biomolecules. In this review, we provide an up-to-date discussion of the recent progress that has been made in the plant-mediated synthesis of chalcogens and chalcogenides with a special focus on their application in cancer theranostics.
Collapse
|
8
|
Ponomaryova TS, Novikova AS, Abramova AM, Goryacheva OA, Drozd DD, Strokin PD, Goryacheva IY. New-Generation Low-Toxic I–III–VI2 Quantum Dots in Chemical Analysis. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822040086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
9
|
Morselli G, Gradone A, Morandi V, Ceroni P. Light-harvesting antennae based on copper indium sulfide (CIS) quantum dots. NANOSCALE 2022; 14:3013-3019. [PMID: 35156987 DOI: 10.1039/d2nr00558a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Copper indium sulfide quantum dots (CIS QDs) and their core-shell analogues (CIS@ZnS QDs) were functionalized with pyrene chromophores via a dihydrolipoamide bifunctional binding moiety: UV excitation of the pyrene chromophores resulted in sensitized emission of the CIS core because of an efficient energy transfer process; the core-shell hybrid system exhibits a 50% increased brightness when excited at 345 nm.
Collapse
Affiliation(s)
- Giacomo Morselli
- Department of Chemistry Ciamician, University of Bologna, Via Selmi 2, 40126, Bologna, Italy.
| | - Alessandro Gradone
- Department of Chemistry Ciamician, University of Bologna, Via Selmi 2, 40126, Bologna, Italy.
- CNR-IMM Bologna Section, Via Piero Gobetti 101, 40129 Bologna, Italy
| | - Vittorio Morandi
- CNR-IMM Bologna Section, Via Piero Gobetti 101, 40129 Bologna, Italy
| | - Paola Ceroni
- Department of Chemistry Ciamician, University of Bologna, Via Selmi 2, 40126, Bologna, Italy.
| |
Collapse
|
10
|
May BM, Bambo MF, Hosseini SS, Sidwaba U, Nxumalo EN, Mishra AK. A review on I–III–VI ternary quantum dots for fluorescence detection of heavy metals ions in water: optical properties, synthesis and application. RSC Adv 2022; 12:11216-11232. [PMID: 35425084 PMCID: PMC8996947 DOI: 10.1039/d1ra08660j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 03/04/2022] [Indexed: 12/30/2022] Open
Abstract
Ternary I–III–VI quantum dots used in the fluorescence detection of heavy metals ions in water.
Collapse
Affiliation(s)
- Bambesiwe M. May
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Florida Campus, Johannesburg, South Africa
- Mintek Analytical Chemistry Division, Private Bag X3015, Randburg 2125, South Africa
| | - Mokae F. Bambo
- DSI/Mintek Nanotechnology Innovation Centre, Advanced Materials Division, Private Bag X3015, Randburg 2125, South Africa
| | - Seyed Saeid Hosseini
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Florida Campus, Johannesburg, South Africa
- Department of Chemical Engineering, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Unathi Sidwaba
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Florida Campus, Johannesburg, South Africa
| | - Edward N. Nxumalo
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, University of South Africa, Florida Campus, Johannesburg, South Africa
| | - Ajay K. Mishra
- Department of Medicine and Chemical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
- Academy of Nanotechnology and Waste Water Innovations, Johannesburg, South Africa
- Department of Chemistry, School of Applied Sciences, KIIT Deemed University, Odisha, India
| |
Collapse
|
11
|
Naikoo GA, Awan T, Salim H, Arshad F, Hassan IU, Pedram MZ, Ahmed W, Faruck HL, Aljabali AAA, Mishra V, Serrano‐Aroca Á, Goyal R, Negi P, Birkett M, Nasef MM, Charbe NB, Bakshi HA, Tambuwala MM. Fourth-generation glucose sensors composed of copper nanostructures for diabetes management: A critical review. Bioeng Transl Med 2022; 7:e10248. [PMID: 35111949 PMCID: PMC8780923 DOI: 10.1002/btm2.10248] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/10/2021] [Accepted: 08/13/2021] [Indexed: 01/31/2023] Open
Abstract
More than five decades have been invested in understanding glucose biosensors. Yet, this immensely versatile field has continued to gain attention from the scientific world to better understand and diagnose diabetes. However, such extensive work done to improve glucose sensing devices has still not yielded desirable results. Drawbacks like the necessity of the invasive finger-pricking step and the lack of optimization of diagnostic interventions still need to be considered to improve the testing process of diabetic patients. To upgrade the glucose-sensing devices and reduce the number of intermediary steps during glucose measurement, fourth-generation glucose sensors (FGGS) have been introduced. These sensors, made using robust electrocatalytic copper nanostructures, improve diagnostic efficiency and cost-effectiveness. This review aims to present the essential scientific progress in copper nanostructure-based FGGS in the past 10 years (2010 to present). After a short introduction, we presented the working principles of these sensors. We then highlighted the importance of copper nanostructures as advanced electrode materials to develop reliable real-time FGGS. Finally, we cover the advantages, shortcomings, and prospects for developing highly sensitive, stable, and specific FGGS.
Collapse
Affiliation(s)
- Gowhar A. Naikoo
- Department of Mathematics and SciencesCollege of Arts and Applied Sciences, Dhofar UniversitySalalahOman
| | - Tasbiha Awan
- Department of Mathematics and SciencesCollege of Arts and Applied Sciences, Dhofar UniversitySalalahOman
| | - Hiba Salim
- Department of Mathematics and SciencesCollege of Arts and Applied Sciences, Dhofar UniversitySalalahOman
| | - Fareeha Arshad
- Department of BiochemistryAligarh Muslim UniversityAligarhIndia
| | | | - Mona Zamani Pedram
- Faculty of Mechanical Engineering—Energy DivisionK.N. Toosi University of TechnologyTehranIran
| | - Waqar Ahmed
- School of Mathematics and PhysicsCollege of Science, University of LincolnLincolnUK
| | | | - Alaa A. A. Aljabali
- Departmnt of Pharmaceutics and Pharmaceutical TechnologyYarmouk UniversityIrbidJordan
| | - Vijay Mishra
- School of Pharmaceutical SciencesLovely Professional UniversityPhagwaraPunjabIndia
| | - Ángel Serrano‐Aroca
- Biomaterials and Bioengineering LabTranslational Research Centre San Alberto Magno, Catholic University of Valencia San Vicente MártirValenciaSpain
| | - Rohit Goyal
- School of Pharmaceutical SciencesShoolini University of Biotechnology and Management SciencesSolanIndia
| | - Poonam Negi
- School of Pharmaceutical SciencesShoolini University of Biotechnology and Management SciencesSolanIndia
| | - Martin Birkett
- Department of Mechanical and Construction EngineeringNorthumbria UniversityNewcastle upon TyneUK
| | - Mohamed M. Nasef
- Department of PharmacySchool of Applied Science, University of HuddersfieldUK
| | - Nitin B. Charbe
- Department of Pharmaceutical SciencesRangel College of Pharmacy, Texas A&M UniversityKingsvilleTexasUSA
| | - Hamid A. Bakshi
- School of Pharmacy and Pharmaceutical ScienceUlster UniversityColeraineUK
| | | |
Collapse
|
12
|
Synthetic Approaches, Modification Strategies and the Application of Quantum Dots in the Sensing of Priority Pollutants. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app112411580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) and nitro-aromatic compounds (NACs) are two classifications of environmental pollutants that have become a source of health concerns. As a result, there have been several efforts towards the development of analytical methods that are efficient and affordable that can sense these pollutants. In recent decades, a wide range of techniques has been developed for the detection of pollutants present in the environment. Among these different techniques, the use of semiconductor nanomaterials, also known as quantum dots, has continued to gain more attention in sensing because of the optical properties that make them useful in the identification and differentiation of pollutants in water bodies. Reported studies have shown great improvement in the sensing of these pollutants. This review article starts with an introduction on two types of organic pollutants, namely polycyclic aromatic hydrocarbons and nitro-aromatic explosives. This is then followed by different quantum dots used in sensing applications. Then, a detailed discussion on different groups of quantum dots, such as carbon-based quantum dots, binary and ternary quantum dots and quantum dot composites, and their application in the sensing of organic pollutants is presented. Different studies on the comparison of water-soluble quantum dots and organic-soluble quantum dots of a fluorescence sensing mechanism are reviewed. Then, different approaches on the improvement of their sensitivity and selectivity in addition to challenges associated with some of these approaches are also discussed. The review is concluded by looking at different mechanisms in the sensing of polycyclic aromatic hydrocarbons and nitro-aromatic compounds.
Collapse
|
13
|
Koryakina IG, Afonicheva PK, Arabuli KV, Evstrapov AA, Timin AS, Zyuzin MV. Microfluidic synthesis of optically responsive materials for nano- and biophotonics. Adv Colloid Interface Sci 2021; 298:102548. [PMID: 34757247 DOI: 10.1016/j.cis.2021.102548] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 02/06/2023]
Abstract
Recently, nanomaterials demonstrating optical response under illumination, the so-called optically responsive nanoparticles (NPs), have found their broad application as optical switchers, gas adsorbents, data storage devices, and optical and biological sensors. Unique optical properties of such nanomaterials are strongly related to their chemical composition, geometrical parameters and morphology. Microfluidic approaches for NPs' synthesis allow overcoming the known critical stages in conventional synthesis of NPs due to a high rate of heat/mass transfer and precise regulation of synthesis conditions, which results in reproducible synthesis outcomes with the desired physico-chemical properties. Here, we review the recent advances in microfluidic approach for synthesis of optically responsive nanomaterials (plasmonic, photoluminescent, shape-changeable NPs), highlighting the general background of microfluidics, common considerations in the design of microfluidic chips (MFCs), and theoretical models of the NPs' formation mechanisms. Comparative analysis of microfluidic synthesis with conventional synthesis methods is provided further, along with the recent applications of optically responsive NPs in nano- and biophotonics.
Collapse
|
14
|
Morselli G, Villa M, Fermi A, Critchley K, Ceroni P. Luminescent copper indium sulfide (CIS) quantum dots for bioimaging applications. NANOSCALE HORIZONS 2021; 6:676-695. [PMID: 34264247 DOI: 10.1039/d1nh00260k] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Copper indium sulfide (CIS) quantum dots are ideal for bioimaging applications, by being characterized by high molar absorption coefficients throughout the entire visible spectrum, high photoluminescence quantum yield, high tolerance to the presence of lattice defects, emission tunability from the red to the near-infrared spectral region by changing their dimensions and composition, and long lifetimes (hundreds of nanoseconds) enabling time-gated detection to increase signal-to-noise ratio. The present review collects: (i) the most common procedures used to synthesize stable CIS QDs and the possible strategies to enhance their colloidal stability in aqueous environment, a property needed for bioimaging applications; (ii) their photophysical properties and parameters that affect the energy and brightness of their photoluminescence; (iii) toxicity and bioimaging applications of CIS QDs, including tumor targeting, time-gated detection and multimodal imaging, as well as theranostics. Future perspectives are analyzed in view of advantages and potential limitations of CIS QDs compared to most traditional QDs.
Collapse
Affiliation(s)
- Giacomo Morselli
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Bologna, 40126, Italy.
| | | | | | | | | |
Collapse
|
15
|
Biomimetic synthesis of CuInS2 nanoparticles: Characterization, cytotoxicity, and application in quantum dots sensitized solar cells. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103176] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
16
|
Ternary Quantum Dots in Chemical Analysis. Synthesis and Detection Mechanisms. Molecules 2021; 26:molecules26092764. [PMID: 34066652 PMCID: PMC8125818 DOI: 10.3390/molecules26092764] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/29/2021] [Accepted: 05/06/2021] [Indexed: 12/14/2022] Open
Abstract
Ternary quantum dots (QDs) are novel nanomaterials that can be used in chemical analysis due their unique physicochemical and spectroscopic properties. These properties are size-dependent and can be adjusted in the synthetic protocol modifying the reaction medium, time, source of heat, and the ligand used for stabilization. In the last decade, several spectroscopic methods have been developed for the analysis of organic and inorganic analytes in biological, drug, environmental, and food samples, in which different sensing schemes have been applied using ternary quantum dots. This review addresses the different synthetic approaches of ternary quantum dots, the sensing mechanisms involved in the analyte detection, and the predominant areas in which these nanomaterials are used.
Collapse
|
17
|
Miropoltsev M, Kuznetsova V, Tkach A, Cherevkov S, Sokolova A, Osipova V, Gromova Y, Baranov M, Fedorov A, Gun’ko Y, Baranov A. FRET-Based Analysis of AgInS 2/ZnAgInS/ZnS Quantum Dot Recombination Dynamics. NANOMATERIALS 2020; 10:nano10122455. [PMID: 33302496 PMCID: PMC7763287 DOI: 10.3390/nano10122455] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/01/2020] [Accepted: 12/07/2020] [Indexed: 12/13/2022]
Abstract
Ternary quantum dots (QDs) are very promising nanomaterials with a range of potential applications in photovoltaics, light-emitting devices, and biomedicine. Despite quite intensive studies of ternary QDs over the last years, the specific relaxation channels involved in their emission mechanisms are still poorly understood, particularly in the corresponding core-shell nanostructures. In the present work, we have studied the recombination pathways of AgInS2 QDs stabilized with the ZnAgInS alloy layer and the ZnS shell (AIS/ZAIS/ZnS QDs) using time-resolved fluorescence spectroscopy. We have also investigated FRET in complexes of AIS/ZAIS/ZnS QDs and cyanine dyes with the absorption bands overlapping in the different regions of the QD emission spectrum, which allowed us to selectively quench the radiative transitions of the QDs. Our studies have demonstrated that FRET from QDs to dyes results in decreasing of all QD PL decay components with the shortest lifetime decreasing the most and the longest one decreasing the least. This research presents important approaches for the investigation of ternary QD luminescence mechanisms by the selective quenching of recombination pathways. These studies are also essential for potential applications of ternary QDs in photodynamic therapy, multiplex analysis, and time-resolved FRET sensing.
Collapse
Affiliation(s)
- Maksim Miropoltsev
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (M.M.); (A.T.); (S.C.); (A.S.); (V.O.); (Y.G.); (M.B.); (A.F.); (A.B.)
| | - Vera Kuznetsova
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (M.M.); (A.T.); (S.C.); (A.S.); (V.O.); (Y.G.); (M.B.); (A.F.); (A.B.)
- Correspondence:
| | - Anton Tkach
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (M.M.); (A.T.); (S.C.); (A.S.); (V.O.); (Y.G.); (M.B.); (A.F.); (A.B.)
| | - Sergei Cherevkov
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (M.M.); (A.T.); (S.C.); (A.S.); (V.O.); (Y.G.); (M.B.); (A.F.); (A.B.)
| | - Anastasiia Sokolova
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (M.M.); (A.T.); (S.C.); (A.S.); (V.O.); (Y.G.); (M.B.); (A.F.); (A.B.)
| | - Viktoria Osipova
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (M.M.); (A.T.); (S.C.); (A.S.); (V.O.); (Y.G.); (M.B.); (A.F.); (A.B.)
| | - Yulia Gromova
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (M.M.); (A.T.); (S.C.); (A.S.); (V.O.); (Y.G.); (M.B.); (A.F.); (A.B.)
| | - Mikhail Baranov
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (M.M.); (A.T.); (S.C.); (A.S.); (V.O.); (Y.G.); (M.B.); (A.F.); (A.B.)
| | - Anatoly Fedorov
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (M.M.); (A.T.); (S.C.); (A.S.); (V.O.); (Y.G.); (M.B.); (A.F.); (A.B.)
| | - Yurii Gun’ko
- Chemistry School, Trinity College Dublin, Dublin 2 Dublin, Ireland;
| | - Alexander Baranov
- Center of Information Optical Technology, ITMO University, 197101 Saint Petersburg, Russia; (M.M.); (A.T.); (S.C.); (A.S.); (V.O.); (Y.G.); (M.B.); (A.F.); (A.B.)
| |
Collapse
|
18
|
Lebepe TC, Parani S, Oluwafemi OS. Graphene Oxide-Coated Gold Nanorods: Synthesis and Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2149. [PMID: 33126610 PMCID: PMC7693020 DOI: 10.3390/nano10112149] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 10/21/2020] [Accepted: 10/23/2020] [Indexed: 01/29/2023]
Abstract
The application of gold nanorods (AuNRs) and graphene oxide (GO) has been widely studied due to their unique properties. Although each material has its own challenges, their combination produces an exceptional material for many applications such as sensor, therapeutics, and many others. This review covers the progress made so far in the synthesis and application of GO-coated AuNRs (GO-AuNRs). Initially, it highlights different methods of synthesizing AuNRs and GO followed by two approaches (ex situ and in situ approaches) of coating AuNRs with GO. In addition, the properties of GO-AuNRs composite such as biocompatibility, photothermal profiling, and their various applications, which include photothermal therapy, theranostic, sensor, and other applications of GO-AuNRs are also discussed. The review concludes with challenges associated with GO-AuNRs and future perspectives.
Collapse
Affiliation(s)
- Thabang C. Lebepe
- Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa; (T.C.L.); (S.P.)
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa
| | - Sundararajan Parani
- Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa; (T.C.L.); (S.P.)
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa
| | - Oluwatobi S. Oluwafemi
- Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa; (T.C.L.); (S.P.)
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa
| |
Collapse
|
19
|
Parani S, Oluwafemi OS. Selective and sensitive fluorescent nanoprobe based on AgInS 2-ZnS quantum dots for the rapid detection of Cr (III) ions in the midst of interfering ions. NANOTECHNOLOGY 2020; 31:395501. [PMID: 32531766 DOI: 10.1088/1361-6528/ab9c58] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We herein report a novel eco-friendly method for the fluorescent sensing of Cr (III) ions using green synthesized glutathione (GSH) capped water soluble AgInS2-ZnS (AIS-ZnS) quantum dots (QDs). The as-synthesized AIS-ZnS QDs were speherical in shape with average diameter of ∼2.9 nm and exhibited bright yellow emission. The fluorimetric analyses showed that, compared to Cr (VI) ions and other 20 metal ions across the periodic table, AIS-ZnS QDs selectively detected Cr (III) ions via fluorescent quenching. In addition, AIS-ZnS QDs fluorescent nanoprobes exhibited selective detection of Cr (III) ions in the mixture of interfering divalent metal ions such as Cu (II), Pb (II), Hg (II), Ni (II). The mechanism of Cr (III) sensing investigated using HRTEM and FTIR revealed that the binding of Cr (III) ions with the GSH capping group resulted in the aggregation of QDs followed by fluorescence quenching. The limit of detection of Cr (III) ions was calculated to be 0.51 nM. The present method uses cadmium free QDs and paves a greener way for selective determination of Cr (III) ions in the midst of other ions in aqueous solutions.
Collapse
Affiliation(s)
- Sundararajan Parani
- Department of Chemical Sciences (formerly Applied Chemistry), University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, Johannesburg, South Africa. Centre for Nanomaterials Science Research, University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, Johannesburg, South Africa
| | | |
Collapse
|
20
|
Jose Varghese R, Parani S, Adeyemi OO, Remya VR, Sakho EHM, Maluleke R, Thomas S, Oluwafemi OS. Green Synthesis of Sodium Alginate Capped -CuInS 2 Quantum Dots with Improved Fluorescence Properties. J Fluoresc 2020; 30:1331-1335. [PMID: 32813189 DOI: 10.1007/s10895-020-02604-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 08/04/2020] [Indexed: 11/28/2022]
Abstract
CuInS2 (CIS) quantum dots (QDs) are known to be ideal fluorophores based on their low toxicity and tunable emission. However, due to low quantum yield (QY) and photostability, the surface is usually passivated by a higher bandgap shell (e.g. ZnS). This always resulted in a blue-shifted emission position which is not usually favourable for biological imaging. To address this problem, we herein report the passivation of green synthesized near infra-red emitting glutathione (GSH) capped CuInS2 QDs using different concentration of sodium alginate (SA) at different temperatures. The as-synthesized QDs are small (~ 3.2 nm), highly crystalline and emitted in the near infra-red region. The optical results showed a 36% increase in photostability and a 2-fold increase in quantum yield at ratio 1:8 (SA: CIS) which is suitable for prolonged biological imaging applications. Transmission electron microscope and X-ray diffraction (XRD) analyses showed that the materials are highly crystalline without any change in shape and size after passivation with the biopolymer. Graphical Abstract.
Collapse
Affiliation(s)
- R Jose Varghese
- Department of Chemical Sciences (formerly Applied Chemistry), University of Johannesburg, P.O. Box 17011, Johannesburg, Doornfontein, 2028, South Africa.,Centre for Nanomaterials Science Research, University of Johannesburg, P.O. Box 17011, Johannesburg, Doornfontein, 2028, South Africa
| | - Sundararajan Parani
- Department of Chemical Sciences (formerly Applied Chemistry), University of Johannesburg, P.O. Box 17011, Johannesburg, Doornfontein, 2028, South Africa.,Centre for Nanomaterials Science Research, University of Johannesburg, P.O. Box 17011, Johannesburg, Doornfontein, 2028, South Africa
| | - Olufemi O Adeyemi
- Department of Chemical Sciences, Olabisi Onabanjo University, P.O. Box 364, Ago-Iwoye, Ogun State, Nigeria
| | - V R Remya
- Department of Chemical Sciences (formerly Applied Chemistry), University of Johannesburg, P.O. Box 17011, Johannesburg, Doornfontein, 2028, South Africa.,Centre for Nanomaterials Science Research, University of Johannesburg, P.O. Box 17011, Johannesburg, Doornfontein, 2028, South Africa
| | - El Hadji Mamour Sakho
- Department of Chemical Sciences (formerly Applied Chemistry), University of Johannesburg, P.O. Box 17011, Johannesburg, Doornfontein, 2028, South Africa.,Centre for Nanomaterials Science Research, University of Johannesburg, P.O. Box 17011, Johannesburg, Doornfontein, 2028, South Africa
| | - Rodney Maluleke
- Department of Chemical Sciences (formerly Applied Chemistry), University of Johannesburg, P.O. Box 17011, Johannesburg, Doornfontein, 2028, South Africa.,Centre for Nanomaterials Science Research, University of Johannesburg, P.O. Box 17011, Johannesburg, Doornfontein, 2028, South Africa
| | - Sabu Thomas
- International and Inter University Center for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, India
| | - Oluwatobi S Oluwafemi
- Department of Chemical Sciences (formerly Applied Chemistry), University of Johannesburg, P.O. Box 17011, Johannesburg, Doornfontein, 2028, South Africa. .,Centre for Nanomaterials Science Research, University of Johannesburg, P.O. Box 17011, Johannesburg, Doornfontein, 2028, South Africa.
| |
Collapse
|
21
|
Bacterial Synthesis of Ternary CdSAg Quantum Dots through Cation Exchange: Tuning the Composition and Properties of Biological Nanoparticles for Bioimaging and Photovoltaic Applications. Microorganisms 2020; 8:microorganisms8050631. [PMID: 32349316 PMCID: PMC7284518 DOI: 10.3390/microorganisms8050631] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/13/2020] [Accepted: 03/24/2020] [Indexed: 02/02/2023] Open
Abstract
In this study, we introduce a biological method for the production of ternary Quantum Dots (QDs): complex nanostructures with tunable optical and structural properties that utilizes post-synthesis modifications through cation exchange. This versatile in-situ cation exchange method being reported for the first time shows great potential for extending the scope of microbial synthesis. By using this bacterial-based method, we easily synthesize and purify CdS, CdSAg, and Ag2S nanocrystals of a size below 15 nm and with variable morphologies that exhibit fluorescence emissions covering a broad spectral range (from 400 to 800 nm). Energy-dispersive X-ray spectroscopy (EDS) results indicate the partial replacement of Cd2+ by Ag+ when AgNO3 concentration is increased. This replacement produces CdSAg ternary QDs hetero-structures with high stability, fluorescence in the NIR-I (700 - 800 nm), and 36.13% quantum yield. Furthermore, this reaction can be extended for the production of soluble Ag2S nanoparticles (NPs) without any traces of Cd. QDs biosynthesized through this cation exchange process display very low toxicity when tested in bacterial or human cell lines. Biosynthesized ternary hetero-structures were used as red fluorescent dyes to label HeLa cells in confocal microscopy studies, which validates its use in bioimaging applications in the near infrared region. In addition, the application of biologically-produced cadmium NPs in solar cells is reported for the first time. The three biosynthesized QDs were successfully used as photosensitizers, where the CdSAg QDs show the best photovoltaic parameters. Altogether, obtained results validate the use of bacterial cells for the controlled production of nanomaterials with properties that allow their application in diverse technologies. We developed a simple biological process for obtaining tunable Quantum Dots (QDs) with different metal compositions through a cation exchange process. Nanoparticles (NPs) are produced in the extracellular space of bacterial cells exposed to cysteine and CdCl2 in a reaction that depends on S2− generation mediated by cysteine desulfhydrase enzymes and uses cellular biomolecules to stabilize the nanoparticle. Using this extracellular approach, water-soluble fluorescent CdS, CdSAg, and Ag2S Quantum Dots with a tunable emission ranging from 400 to 800 nm were generated. This is the first study reporting the use of microorganisms to produce tunable ternary QDs and the first time that a cation exchange process mediated by cells is described. Obtained results validate the use of biological synthesis to produce NPs with new characteristics and opens a completely new research field related to the use of microorganisms to synthesize complex NPs that are difficult to obtain with regular chemical methods.
Collapse
|
22
|
Castro RC, Ribeiro DSM, Páscoa RNMJ, Soares JX, Mazivila SJ, Santos JLM. Dual-emission CdTe/AgInS 2 photoluminescence probe coupled to neural network data processing for the simultaneous determination of folic acid and iron (II). Anal Chim Acta 2020; 1114:29-41. [PMID: 32359512 DOI: 10.1016/j.aca.2020.04.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/20/2020] [Accepted: 04/02/2020] [Indexed: 02/08/2023]
Abstract
This work focused on the combination of CdTe and AgInS2 quantum dots in a dual-emission nanoprobe for the simultaneous determination of folic acid and Fe(II) in pharmaceutical formulations. The surface chemistry of the used QDs was amended with suitable capping ligands to obtain appropriate reactivity in terms of selectivity and sensitivity towards the target analytes. The implementation of PL-based sensing schemes combining multiple QDs of different nature, excited at the same wavelength and emitting at different ones, allowed to obtain a specific analyte-response profile. The first-order fluorescence data obtained from the whole emission spectra of the CdTe/AgInS2 combined nanoprobe upon interaction with folic acid and Fe(II) were processed by using chemometric tools, namely partial least-squares (PLS) and artificial neural network (ANN). This enabled to circumvent the selectivity issues commonly associated with the use of QDs prone to indiscriminate interaction with multiple species, which impair reliable and accurate quantification in complex matrices samples. ANN demonstrated to be the most efficient chemometric model for the simultaneous determination of both analytes in binary mixtures and pharmaceutical formulations due to the non-linear relationship between analyte concentration and fluorescence data that it could handle. The R2P and SEP% obtained for both analytes quantification in pharmaceutical formulations through ANN modelling ranged from 0.92 to 0.99 and 5.7-9.1%, respectively. The obtained results revealed that the developed approach is able to quantify, with high reliability and accuracy, more than one analyte in complex mixtures and real samples with pharmaceutical interest.
Collapse
Affiliation(s)
- Rafael C Castro
- LAQV, REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira Nº 228, 4050-313, Porto, Portugal
| | - David S M Ribeiro
- LAQV, REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira Nº 228, 4050-313, Porto, Portugal.
| | - Ricardo N M J Páscoa
- LAQV, REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira Nº 228, 4050-313, Porto, Portugal.
| | - José X Soares
- LAQV, REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira Nº 228, 4050-313, Porto, Portugal
| | - Sarmento J Mazivila
- LAQV, REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira Nº 228, 4050-313, Porto, Portugal
| | - João L M Santos
- LAQV, REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira Nº 228, 4050-313, Porto, Portugal.
| |
Collapse
|
23
|
Tsolekile N, Nahle S, Zikalala N, Parani S, Sakho EHM, Joubert O, Matoetoe MC, Songca SP, Oluwafemi OS. Cytotoxicity, fluorescence tagging and gene-expression study of CuInS/ZnS QDS - meso (hydroxyphenyl) porphyrin conjugate against human monocytic leukemia cells. Sci Rep 2020; 10:4936. [PMID: 32188925 PMCID: PMC7080734 DOI: 10.1038/s41598-020-61881-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 03/03/2020] [Indexed: 12/11/2022] Open
Abstract
The toxicity of heavy metals present in binary semiconductor nanoparticles also known as quantum dots (QDs) has hindered their wide applications hence the advent of non-toxic ternary quantum dots. These new group of quantum dots have been shown to possess some therapeutic action against cancer cell lines but not significant enough to be referred to as an ideal therapeutic agent. In this report, we address this problem by conjugating red emitting CuInS/ZnS QDs to a 5,10,15,20-tetrakis(3-hydroxyphenyl)porphyrin -photosensitizer for improved bioactivities. The glutathione capped CuInS/ZnS QDs were synthesized in an aqueous medium using a kitchen pressure cooker at different Cu: In ratios (1:4 and 1:8) and at varied temperatures (95 °C, 190 °C and 235 °C). Optical properties show that the as-synthesized CuInS/ZnS QDs become red-shifted compared to the core (CuInS) after passivation with emission in the red region while the cytotoxicity study revealed excellent cell viability against normal kidney fibroblasts (BHK21). The highly fluorescent, water-soluble QDs were conjugated to 5,10,15,20-tetrakis(3-hydroxyphenyl)porphyrin (mTHPP) via esterification reactions at room temperature. The resultant water-soluble conjugate was then used for the cytotoxicity, fluorescent imaging and gene expression study against human monocytic leukemia cells (THP-1). Our result showed that the conjugate possessed high cytotoxicity against THP-1 cells with enhanced localized cell uptake compared to the bare QDs. In addition, the gene expression study revealed that the conjugate induced inflammation compared to the QDs as NFKB gene was over-expressed upon cell inflammation while the singlet oxygen (1O2) study showed the conjugate possessed large amount of 1O2, three times than the bare porphyrin. Thus, the as-synthesized conjugate looks promising as a therapeutic agent for cancer therapy.
Collapse
Affiliation(s)
- Ncediwe Tsolekile
- Department of Chemical Sciences, University of Johannesburg, P. O. Box 17011, Doornfontein, 2028, Johannesburg, South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg, South Africa
- Department of Chemistry, Cape Peninsula University of Technology, P.O. Box 652, Cape Town, 2000, South Africa
| | - Sara Nahle
- Université De Lorraine, Faculté de Pharmacie, F-54001, Nancy Cedex, France
| | - Nkosingiphile Zikalala
- Department of Chemical Sciences, University of Johannesburg, P. O. Box 17011, Doornfontein, 2028, Johannesburg, South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg, South Africa
| | - Sundararajan Parani
- Department of Chemical Sciences, University of Johannesburg, P. O. Box 17011, Doornfontein, 2028, Johannesburg, South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg, South Africa
| | - El Hadji Mamour Sakho
- Department of Chemical Sciences, University of Johannesburg, P. O. Box 17011, Doornfontein, 2028, Johannesburg, South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg, South Africa
| | - Olivier Joubert
- Université De Lorraine, Faculté de Pharmacie, F-54001, Nancy Cedex, France
| | - Mangaka C Matoetoe
- Department of Chemistry, Cape Peninsula University of Technology, P.O. Box 652, Cape Town, 2000, South Africa
| | - Sandile P Songca
- Department of Chemistry, University of KwaZulu-Natal, Private Bag X 54001, Durban, 4000, South Africa
| | - Oluwatobi S Oluwafemi
- Department of Chemical Sciences, University of Johannesburg, P. O. Box 17011, Doornfontein, 2028, Johannesburg, South Africa.
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg, South Africa.
| |
Collapse
|
24
|
Yang J, Lin ZZ, Huang ZY. Rapid detection of trace malachite green using a fluorescence probe based on signal amplification through electrostatic self-assembly of CdTe QDs and polystyrene microsphere. MARINE POLLUTION BULLETIN 2020; 151:110812. [PMID: 32056604 DOI: 10.1016/j.marpolbul.2019.110812] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/07/2019] [Accepted: 12/07/2019] [Indexed: 06/10/2023]
Abstract
A fluorescence probe was delicately designed for the detection of malachite green (MG) in water and fish samples. Through the electrostatic self-assembly of CdTe QDs on the surface of polystyrene (PS) microspheres, the fluorescence signal was amplified. After grafting molecularly imprinted film, the fluorescence probe of MIP@PS@CdTe was fabricated and applied to the detection of MG based on fluorescence quenching. The linear range of MG detection was 0.01-20 μmol L-1, and the detection limit was 4.7 nmol L-1 (3σ, n = 9) which was much lower than those of the previous reports. The recoveries of MG in aquaculture water and fish samples ranging from 87.6% to 105.4% illustrated that the detection by MIP@PS@CdTe probe was accurate and reliable.
Collapse
Affiliation(s)
- Ji Yang
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China
| | - Zheng-Zhong Lin
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China
| | - Zhi-Yong Huang
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China.
| |
Collapse
|
25
|
Ca NX, Van HT, Do PV, Thanh LD, Tan PM, Truong NX, Oanh VTK, Binh NT, Hien NT. Influence of precursor ratio and dopant concentration on the structure and optical properties of Cu-doped ZnCdSe-alloyed quantum dots. RSC Adv 2020; 10:25618-25628. [PMID: 35518601 PMCID: PMC9055275 DOI: 10.1039/d0ra04257a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 06/22/2020] [Indexed: 11/21/2022] Open
Abstract
Tunable copper doped Zn1−xCdxS alloy quantum dots (QDs) were successfully synthesized by the wet chemical method.
Collapse
Affiliation(s)
- N. X. Ca
- Department of Physics and Technology
- TNU—University of Sciences
- Thai Nguyen
- Vietnam
| | - H. T. Van
- Institute of Research and Development
- Duy Tan University
- Da Nang
- Vietnam
| | | | | | - P. M. Tan
- Faculty of Fundamental Sciences
- Thai Nguyen University of Technology
- Thai Nguyen
- Vietnam
| | - N. X. Truong
- Institute of Materials Science
- Vietnam Academy of Science and Technology
- Ha Noi
- Vietnam
| | - V. T. K. Oanh
- Institute of Materials Science
- Vietnam Academy of Science and Technology
- Ha Noi
- Vietnam
| | - N. T. Binh
- Institute of Physics
- Vietnam Academy of Science and Technology
- Hanoi
- Vietnam
| | - N. T. Hien
- Ceramics and Biomaterials Research Group
- Advanced Institute of Materials Science
- Ton Duc Thang University
- Ho Chi Minh City
- Vietnam
| |
Collapse
|
26
|
Oluwafemi OS, May BMM, Parani S, Tsolekile N. Facile, large scale synthesis of water soluble AgInSe 2/ZnSe quantum dots and its cell viability assessment on different cell lines. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 106:110181. [PMID: 31753367 DOI: 10.1016/j.msec.2019.110181] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 08/09/2019] [Accepted: 09/09/2019] [Indexed: 11/25/2022]
Abstract
I-III-VI chalcopyrite ternary quantum dots have emerged as a good alternative over the conventional II-VI and IV-VI chalcogenide binary QDs that usually consist of heavy metals such as Cd and Pb which has limited their bioapplications. Among the chalcopyrite QDs, AgInSe2 QDs has been the least developed due to the imbalanced cation reactivity, unwanted impurities, broad size distribution and resultant large particle sizes. In addition, the cell viability of these QDs still needs to be investigated on different cell lines both normal and cancerous ones. Herein, large-scale synthesis of water-soluble thioglycolic acid (TGA) capped and gelatin-stabilized AgInSe2 (AISe) core and AgInSe2/ZnSe (AISe/ZnSe) core/shell QDs in the absence of an inert atmosphere and their cell viability against different cell lines are reported. The optical and structural characteristics of the as-synthesized QDs were investigated by UV-visible (vis) absorption, photoluminescence (PL) and Fourier-transmission infrared (FTIR) spectroscopies, dynamic light scattering (DLS), X-ray diffraction (XRD), and high-resolution transmission electron microscope (HRTEM) techniques. Growth of ZnSe shell on the core AISe resulted in the blue shifting of the emission maximum position with the increased PL intensity. The QDs are small and spherical in shape with an average particle diameter of 2.8 nm and 3.2 nm for AISe and AISe/ZnSe QDs respectively. The in vitro cell viability assay revealed that the as-synthesized AISe/ZnSe QDs are not toxic towards cancerous (HeLa -cervical cancer and A549-lung cancer) and normal (BHK21 -Kidney) cell lines.
Collapse
Affiliation(s)
- Oluwatobi S Oluwafemi
- Department of Chemical Sciences (formerly Applied Chemistry), University of Johannesburg, P.O. box 17011, Doornfontein, 2028 Johannesburg, South Africa; Center for Nanomaterials Science Research, University of Johannesburg, Doornfontein, South Africa.
| | - Bambesiwe M M May
- Department of Chemical Sciences (formerly Applied Chemistry), University of Johannesburg, P.O. box 17011, Doornfontein, 2028 Johannesburg, South Africa; Center for Nanomaterials Science Research, University of Johannesburg, Doornfontein, South Africa
| | - Sundararajan Parani
- Department of Chemical Sciences (formerly Applied Chemistry), University of Johannesburg, P.O. box 17011, Doornfontein, 2028 Johannesburg, South Africa; Center for Nanomaterials Science Research, University of Johannesburg, Doornfontein, South Africa
| | - Ncediwe Tsolekile
- Department of Chemical Sciences (formerly Applied Chemistry), University of Johannesburg, P.O. box 17011, Doornfontein, 2028 Johannesburg, South Africa; Center for Nanomaterials Science Research, University of Johannesburg, Doornfontein, South Africa
| |
Collapse
|
27
|
Zhou J, Yuan K, Zhou L, Guo Y, Luo M, Guo X, Meng Q, Zhang Y. Boosting Electrochemical Reduction of CO
2
at a Low Overpotential by Amorphous Ag‐Bi‐S‐O Decorated Bi
0
Nanocrystals. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908735] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jun‐Hao Zhou
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| | - Kun Yuan
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| | - Liang Zhou
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| | - Yu Guo
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| | - Ming‐Yu Luo
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| | - Xiao‐Yan Guo
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| | - Qing‐Yuan Meng
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| | - Ya‐Wen Zhang
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| |
Collapse
|
28
|
Zhou J, Yuan K, Zhou L, Guo Y, Luo M, Guo X, Meng Q, Zhang Y. Boosting Electrochemical Reduction of CO
2
at a Low Overpotential by Amorphous Ag‐Bi‐S‐O Decorated Bi
0
Nanocrystals. Angew Chem Int Ed Engl 2019; 58:14197-14201. [DOI: 10.1002/anie.201908735] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 07/28/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Jun‐Hao Zhou
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| | - Kun Yuan
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| | - Liang Zhou
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| | - Yu Guo
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| | - Ming‐Yu Luo
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| | - Xiao‐Yan Guo
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| | - Qing‐Yuan Meng
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| | - Ya‐Wen Zhang
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University No.5 Yiheyuan Road Haidian District Beijing 100871 China
| |
Collapse
|
29
|
Mahmoud HR, El-Molla SA, Naghmash MA. Novel mesoporous MnO 2/SnO 2 nanomaterials synthesized by ultrasonic-assisted co-precipitation method and their application in the catalytic decomposition of hydrogen peroxide. ULTRASONICS 2019; 95:95-103. [PMID: 30903814 DOI: 10.1016/j.ultras.2019.03.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 02/13/2019] [Accepted: 03/13/2019] [Indexed: 06/09/2023]
Abstract
Novel mesoporous MnO2/SnO2 catalysts were successfully synthesized via traditional and ultrasonic co-precipitation methods. Moreover, their catalytic efficiencies were evaluated in decomposition of hydrogen peroxide (H2O2). Interestingly, it was found that the mixing of MnO2 with SnO2 catalyst led to a significant improvement in their catalytic efficiencies compared with single oxides catalysts. However, the influence of ultrasonic power and irradiation time on MnO2/SnO2 nanomaterials were compared to get optimum synthetic condition. Subsequently, the catalysts were characterized by X-ray diffraction (XRD), N2 adsorption-desorption analysis and high-resolution transmission electron microscopy (HR-TEM). Results represented that the effect of ultrasonic power and irradiation time on MnO2/SnO2 catalysts exerted a great influence on the BET surface area and average particle diameter. Furthermore, the results showed that the best catalytic efficiency was obtained for the mesoporous MnO2/SnO2 catalyst which is sonicated at power of 60% for 30 min as optimum conditions. Finally, the outcomes appeared that the catalysts synthesized by ultrasonic co-precipitation method were more efficient than those synthesized by traditional co-precipitation in catalyzing H2O2 decomposition.
Collapse
Affiliation(s)
- Hala R Mahmoud
- Department of Chemistry, Faculty of Education, Ain Shams University, Roxy 11757, Cairo, Egypt.
| | - Sahar A El-Molla
- Department of Chemistry, Faculty of Education, Ain Shams University, Roxy 11757, Cairo, Egypt
| | - Mona A Naghmash
- Department of Chemistry, Faculty of Education, Ain Shams University, Roxy 11757, Cairo, Egypt
| |
Collapse
|
30
|
Ghanbari K, Roushani M, Soheyli E, Sahraei R. An electrochemical tyrosinamide aptasensor using a glassy carbon electrode modified by N-acetyl-l-cysteine-capped Ag-In-S QDs. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:653-660. [PMID: 31147037 DOI: 10.1016/j.msec.2019.04.093] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/25/2019] [Accepted: 04/29/2019] [Indexed: 02/06/2023]
Abstract
This paper reports an aptamer-based green approach for the electrochemical evaluation of tyrosinamide (Tyr-NH2). In this regard, at the first step, an aqueous synthetic strategy for preparing N-acetyl-l-cysteine (NAC)-capped Ag-In-S (AIS) quantum dots (QDs) with bright yellow/orange emission was developed. The conjugation of AIS QDs to NAC-biomolecules provides opportunities for using them as luminescent contrast agents for living cell tracking and labeling or sensing studies. In the next step, the design stage of the aptasensor, the glassy carbon electrode (GCE) was modified with the AIS QDs and then the Tyr-NH2 special aptamer, which has an amine group at its end, interacts with silver and indium ions at the surface of the AIS QDs and through the formation of covalent bonding of AgN and InN, attaches to the GCE surface modified with the AIS QDs. In this approach, for the first time, NAC-capped AIS QDs have been used to modify the electrode surface in the aptamer-based electrochemical sensor. The response changes of the [Fe(CN)6]4-/3- as redox probe, during the modification of GCE surface, the fabrication and assessment of proposed aptasensing, using the cyclic voltammetry, differential pulse voltammetry and electrochemical impedance spectroscopy were recorded. The designed aptasensor for the Tyr-NH2 evaluation showed good linearity from 0.01 to 2.81 nM and 2.81-10.81 nM, and low detection limit of 3.34 pM. The obtained results of the stability, reproducibility and selectivity investigations implying that the reported aptasensor as the first aptamer-based electrochemical assay for Tyr-NH2, can be reliable for the determination of Tyr-NH2 in serum samples.
Collapse
Affiliation(s)
- Kazhal Ghanbari
- Department of Chemistry, Faculty of Science, Ilam University, Ilam, Iran
| | - Mahmoud Roushani
- Department of Chemistry, Faculty of Science, Ilam University, Ilam, Iran.
| | - Ehsan Soheyli
- Department of Physics, Faculty of Science, Ilam University, 65315-516, Ilam, Iran
| | - Reza Sahraei
- Department of Chemistry, Faculty of Science, Ilam University, Ilam, Iran
| |
Collapse
|
31
|
Oluwafemi OS, Ncapayi V, Parani S, Tsolekile N. Facile Synthesis and Characterization of CdSe/ZnSe Core/Shell and ZnxCd1−xSe Alloy Quantum Dots via Non-organometallic Route. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1471-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
32
|
Chauhan SM, Chaki SH, Deshpande M, Tailor JP, Khimani AJ, Mangrola AV. Synthesis, characterization and antimicrobial study of wet chemical synthesized CuInSe2 nanoparticles. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.nanoso.2018.07.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
33
|
|
34
|
K.T. V, Belagali SL. Synthesis and characterization of Mn:ZnS quantum dots for photovoltaic applications. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.nanoso.2018.02.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|