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Milenković M, Ciasca G, Bonasera A, Scopelliti M, Marković O, Verbić T, Marković BT, Jovanović S. Blue-light-driven photoactivity of L-cysteine-modified graphene quantum dots and their antibacterial effects. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 250:112818. [PMID: 38041931 DOI: 10.1016/j.jphotobiol.2023.112818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/09/2023] [Accepted: 11/21/2023] [Indexed: 12/04/2023]
Abstract
The widespread abuse of traditional antibiotics has led to a global rise in antibiotic-resistant bacteria, which give in return unprecedented health risks. Therefore, there is a large and urgent need for the development of new, smart antibacterial agents able to efficiently kill or inhibit bacterial growth. In this study, we investigated the antibacterial activity of S, N-doped Graphene Quantum Dots (GQDs) as a light-triggered antibacterial agent. Gamma irradiation was employed as a tool to achieve one-step modification of GQDs in the presence of L-cysteine amino acid as a source of heteroatoms. X-ray Photoelectron Spectroscopy (XPS), nuclear magnetic resonance (NMR), and zeta potential measurements provided the necessary data to clarify the structure of modified dots and verify the introduction of both S- and N-atoms in GQDs structure, but also severe changes in the aromatic, sp2 domains. Namely, γ-irradiation caused a bonding of S atoms in 1.14 at.% mainly as thiol groups, and N in 1.81 at.% as amino groups, but sp2 contribution in GQD structure was lowered from 63.00 to 4.86 at.%, as measured in dots irradiated at a dose of 200 kGy. Fluorescence quenching measurements showed that L-cysteine-modified dots are able to bind to human serum albumin. The antibacterial activity of GQDs combined with 1 and 6 h of blue light (470 nm) irradiation was tested against 8 bacterial strains. GQD-cys-25 sample provided the best results, with minimum inhibitory concentration (MIC) as low as 125 μg/mL against S. aureus, E. faecalis, and E. coli after only 1 h of blue light exposure.
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Affiliation(s)
- Mila Milenković
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia.
| | - Gabriele Ciasca
- Istituti Biologici - Istituto di Fisica, Università Cattolica del Sacro Cuore, largo Francesco Vito 1, 00168 Roma, Italy
| | - Aurelio Bonasera
- Department of Physics and Chemistry, Emilio Segrè, University of Palermo, viale delle Scienze 17, 90128 Palermo, Italy; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Palermo Research Unit, viale delle Scienze 17, 90128 Palermo, Italy
| | - Michelangelo Scopelliti
- Department of Physics and Chemistry, Emilio Segrè, University of Palermo, viale delle Scienze 17, 90128 Palermo, Italy; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Palermo Research Unit, viale delle Scienze 17, 90128 Palermo, Italy; Laboratorio Superfici, Film Sottili e Dispositivi, ATeN Center, University of Palermo, viale delle Scienze 18/A, 90128 Palermo, Italy
| | - Olivera Marković
- University of Belgrade, Institute of Chemistry, Technology and Metallurgy, Department of Chemistry, Njegoševa 12, 11000 Belgrade, Serbia
| | - Tatjana Verbić
- University of Belgrade, Faculty of Chemistry, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Biljana Todorović Marković
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Svetlana Jovanović
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
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Liu Y, Li J, Xiahou J, Liu Z. Recent Advances in NIR or X-ray Excited Persistent Luminescent Materials for Deep Bioimaging. J Fluoresc 2023:10.1007/s10895-023-03513-8. [PMID: 38008861 DOI: 10.1007/s10895-023-03513-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 11/14/2023] [Indexed: 11/28/2023]
Abstract
Due to their persistent luminescence, persistent luminescent (PersL) materials have attracted great interest. In the biomedical field, the use of persistent luminescent nanoparticles (PLNPs) eliminates the need for continuous in situ excitation, thereby avoiding interference from tissue autofluorescence and significantly improving the signal-to-noise ratio (SNR). Although persistent luminescence materials can emit light continuously, the luminescence intensity of small-sized nanoparticles in vivo decays quickly. Early persistent luminescent nanoparticles were mostly excited by ultraviolet (UV) or visible light and were administered for imaging purposes through ex vivo charging followed by injection into the body. Limited by the low in vivo penetration depth, UV light cannot secondary charge PLNPs that have decayed in vivo, and visible light does not penetrate deep enough to reach deep tissues, which greatly limits the imaging time of persistent luminescent materials. In order to address this issue, the development of PLNPs that can be activated by light sources with superior tissue penetration capabilities is essential. Near-infrared (NIR) light and X-rays are widely recognized as ideal excitation sources, making persistent luminescent materials stimulated by these two sources a prominent area of research in recent years. This review describes NIR and X-ray excitable persistent luminescence materials and their recent advances in bioimaging.
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Affiliation(s)
- Yuanqi Liu
- School of Material Science and Engineering, University of Jinan, Jinan, China
| | - Jinkai Li
- School of Material Science and Engineering, University of Jinan, Jinan, China.
- Infovision Optoelectronics (Kunshan)Co, Ltd, Kunshan, 215300, China.
| | - Junqing Xiahou
- School of Material Science and Engineering, University of Jinan, Jinan, China.
| | - Zongming Liu
- School of Material Science and Engineering, University of Jinan, Jinan, China.
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Cruz B, Balderas I, Gómez I. Aqueous synthesis of red fluorescent l-cysteine functionalized Cu 2S quantum dots with potential application as an As(iii) aptasensor. RSC Adv 2023; 13:18946-18952. [PMID: 37362604 PMCID: PMC10286222 DOI: 10.1039/d3ra02886k] [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: 05/01/2023] [Accepted: 06/14/2023] [Indexed: 06/28/2023] Open
Abstract
Water-stable Cu2S quantum dots were obtained by applying l-cysteine as a Cu(ii) to Cu(i) reducer and stabilizer in water and using an inert atmosphere at ambient temperature. The obtained quantum dots were characterized by STEM, XRD, FT-IR, UV-Vis, Raman, and fluorescence spectroscopy. The synthesis was optimized to achieve Cu2S quantum dots with an average diameter of about 9 nm that show red fluorescence emission. l-cysteine stabilization mediates crystallite growth, avoids aggregation of the quantum dots, and allows water solubility through polar functional groups, improving the fluorescence. The fluorometric test in the presence of the aptamer showed a shift in fluorescence intensity when an aliquot of As(iii) with a concentration of 100 pmol l-1 is incorporated because As(iii) and the used aptamer make a complex, leaving free the quantum dots and recovering their fluorescence response. The developed Cu2S quantum dots open possibilities for fluorescent detection of different analytes by simply changing aptamers according to the analyte to be detected.
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Affiliation(s)
- Brandon Cruz
- Laboratorio de Materiales I, Universidad Autónoma de Nuevo León San Nicolás de los Garza Mexico
| | - Isaías Balderas
- Laboratorio de Ingeniería Genética y Genómica, Universidad Autónoma de Nuevo León San Nicolás de los Garza Mexico
| | - Idalia Gómez
- Laboratorio de Materiales I, Universidad Autónoma de Nuevo León San Nicolás de los Garza Mexico
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Nangare S, Patil S, Patil A, Deshmukh P, Patil P. Bovine serum albumin-derived poly-L-glutamic acid-functionalized graphene quantum dots embedded UiO-66-NH2 MOFs as a fluorescence ‘On-Off-On’ magic gate for para-aminohippuric acid sensing. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Dorontic S, Bonasera A, Scopelliti M, Markovic O, Bajuk Bogdanović D, Ciasca G, Romanò S, Dimkić I, Budimir M, Marinković D, Jovanovic S. Gamma-Ray-Induced Structural Transformation of GQDs towards the Improvement of Their Optical Properties, Monitoring of Selected Toxic Compounds, and Photo-Induced Effects on Bacterial Strains. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12152714. [PMID: 35957147 PMCID: PMC9370814 DOI: 10.3390/nano12152714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 06/03/2023]
Abstract
Structural modification of different carbon-based nanomaterials is often necessary to improve their morphology and optical properties, particularly the incorporation of N-atoms in graphene quantum dots (GQDs). Here, a clean, simple, one-step, and eco-friendly method for N-doping of GQDs using gamma irradiation is reported. GQDs were irradiated in the presence of the different ethylenediamine (EDA) amounts (1 g, 5 g, and 10 g) and the highest % of N was detected in the presence of 10 g. N-doped GQDs emitted strong, blue photoluminescence (PL). Photoluminescence quantum yield was increased from 1.45, as obtained for non-irradiated dots, to 7.24% for those irradiated in the presence of 1 g of EDA. Modified GQDs were investigated as a PL probe for the detection of insecticide Carbofuran (2,2-Dimethyl-2,3-dihydro-1-benzofuran-7-yl methylcarbamate) and herbicide Amitrole (3-amino-1,2,4-triazole). The limit of detection was 5.4 μmol L-1 for Carbofuran. For the first time, Amitrole was detected by GQDs in a turn-off/turn-on mechanism using Pd(II) ions as a quenching agent. First, Pd(II) ions were quenched (turn-off) PL of GQDs, while after Amitrole addition, PL was recovered linearly with Amitrole concentration (turn-on). LOD was 2.03 μmol L-1. These results suggest that modified GQDs can be used as an efficient new material for Carbofuran and Amitrole detection. Furthermore, the phototoxicity of dots was investigated on both Gram-positive and Gram-negative bacterial strains. When bacterial cells were exposed to different GQD concentrations and illuminated with light of 470 nm wavelength, the toxic effects were not observed.
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Affiliation(s)
- Sladjana Dorontic
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Aurelio Bonasera
- Department of Physics and Chemistry—Emilio Segrè, University of Palermo, 90128 Palermo, Italy
- Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Palermo Research Unit, Viale delle Scienze, Bld. 17, 90128 Palermo, Italy
| | - Michelangelo Scopelliti
- Department of Physics and Chemistry—Emilio Segrè, University of Palermo, 90128 Palermo, Italy
- Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Palermo Research Unit, Viale delle Scienze, Bld. 17, 90128 Palermo, Italy
| | - Olivera Markovic
- Department of Chemistry, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
| | | | - Gabriele Ciasca
- Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 11158 Rome, Italy
- Faculty of Biology, University of Belgrade, Studentski Trg 16, 11158 Belgrade, Serbia
| | - Sabrina Romanò
- Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 11158 Rome, Italy
| | - Ivica Dimkić
- Faculty of Biology, University of Belgrade, Studentski Trg 16, 11158 Belgrade, Serbia
| | - Milica Budimir
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Dragana Marinković
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Svetlana Jovanovic
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
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Dorontić S, Jovanović S, Bonasera A. Shedding Light on Graphene Quantum Dots: Key Synthetic Strategies, Characterization Tools, and Cutting-Edge Applications. MATERIALS 2021; 14:ma14206153. [PMID: 34683745 PMCID: PMC8539078 DOI: 10.3390/ma14206153] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/07/2021] [Accepted: 10/14/2021] [Indexed: 01/09/2023]
Abstract
During the last 20 years, the scientific community has shown growing interest towards carbonaceous nanomaterials due to their appealing mechanical, thermal, and optical features, depending on the specific nanoforms. Among these, graphene quantum dots (GQDs) recently emerged as one of the most promising nanomaterials due to their outstanding electrical properties, chemical stability, and intense and tunable photoluminescence, as it is witnessed by a booming number of reported applications, ranging from the biological field to the photovoltaic market. To date, a plethora of synthetic protocols have been investigated to modulate the portfolio of features that GQDs possess and to facilitate the use of these materials for target applications. Considering the number of publications and the rapid evolution of this flourishing field of research, this review aims at providing a broad overview of the most widely established synthetic protocols and offering a detailed review of some specific applications that are attracting researchers’ interest.
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Affiliation(s)
- Slađana Dorontić
- “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia;
| | - Svetlana Jovanović
- “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia;
- Correspondence: (S.J.); (A.B.)
| | - Aurelio Bonasera
- Palermo Research Unit, Department of Physics and Chemistry—Emilio Segrè, University of Palermo, 90128 Palermo, Italy
- Correspondence: (S.J.); (A.B.)
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Danial WH, Md Bahri NF, Abdul Majid Z. Preparation, Marriage Chemistry and Applications of Graphene Quantum Dots-Nanocellulose Composite: A Brief Review. Molecules 2021; 26:6158. [PMID: 34684739 PMCID: PMC8537986 DOI: 10.3390/molecules26206158] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 10/02/2021] [Accepted: 10/11/2021] [Indexed: 12/03/2022] Open
Abstract
Graphene quantum dots (GQDs) are zero-dimensional carbon-based materials, while nanocellulose is a nanomaterial that can be derived from naturally occurring cellulose polymers or renewable biomass resources. The unique geometrical, biocompatible and biodegradable properties of both these remarkable nanomaterials have caught the attention of the scientific community in terms of fundamental research aimed at advancing technology. This study reviews the preparation, marriage chemistry and applications of GQDs-nanocellulose composites. The preparation of these composites can be achieved via rapid and simple solution mixing containing known concentration of nanomaterial with a pre-defined composition ratio in a neutral pH medium. They can also be incorporated into other matrices or drop-casted onto substrates, depending on the intended application. Additionally, combining GQDs and nanocellulose has proven to impart new hybrid nanomaterials with excellent performance as well as surface functionality and, therefore, a plethora of applications. Potential applications for GQDs-nanocellulose composites include sensing or, for analytical purposes, injectable 3D printing materials, supercapacitors and light-emitting diodes. This review unlocks windows of research opportunities for GQDs-nanocellulose composites and pave the way for the synthesis and application of more innovative hybrid nanomaterials.
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Affiliation(s)
- Wan Hazman Danial
- Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia, Kuantan 25200, Pahang, Malaysia;
| | - Nur Fathanah Md Bahri
- Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia, Kuantan 25200, Pahang, Malaysia;
| | - Zaiton Abdul Majid
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia;
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