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Barhum H, McDonnell C, Peltek O, Jain R, Amer M, Kain D, Elad-Sfadia G, Athamna M, Blinder P, Ginzburg P. In-Brain Multiphoton Imaging of Vaterite Cargoes Loaded with Carbon Dots. NANO LETTERS 2024; 24:8232-8239. [PMID: 38781101 PMCID: PMC11247546 DOI: 10.1021/acs.nanolett.4c00325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Biocompatible fluorescent agents are key contributors to the theranostic paradigm by enabling real-time in vivo imaging. This study explores the optical properties of phenylenediamine carbon dots (CDs) and demonstrates their potential for fluorescence imaging in cells and brain blood vessels. The nonlinear absorption cross-section of the CDs was measured and achieved values near 50 Goeppert-Mayer (GM) units with efficient excitation in the 775-895 nm spectral range. Mesoporous vaterite nanoparticles were loaded with CDs to examine the possibility of a biocompatible imaging platform. Efficient one- and two-photon imaging of the CD-vaterite composites uptaken by diverse cells was demonstrated. For an in vivo scenario, CD-vaterite composites were injected into the bloodstream of a mouse, and their flow was monitored within the blood vessels of the brain through a cranial window. These results show the potential of the platform for high-brightness biocompatible imaging with the potential for both sensing and simultaneous drug delivery.
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Affiliation(s)
- Hani Barhum
- Department of Electrical Engineering, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel
- Triangle Regional Research and Development Center, Kfar Qara 3007500, Israel
- Light-Matter Interaction Centre, Tel Aviv University, Tel Aviv 69978, Israel
| | - Cormac McDonnell
- Department of Electrical Engineering, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel
- Light-Matter Interaction Centre, Tel Aviv University, Tel Aviv 69978, Israel
| | - Oleksii Peltek
- School of Physics and Engineering, ITMO University, St. Petersburg 191002, Russian Federation
| | - Rudhvi Jain
- Neurobiology, Biochemistry and Biophysics School, Wise Life Science Faculty, Tel Aviv University, Tel Aviv 69978, Israel
| | - Mariam Amer
- Triangle Regional Research and Development Center, Kfar Qara 3007500, Israel
| | - David Kain
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel
| | - Galit Elad-Sfadia
- Neurobiology, Biochemistry and Biophysics School, Wise Life Science Faculty, Tel Aviv University, Tel Aviv 69978, Israel
| | - Muhammad Athamna
- Triangle Regional Research and Development Center, Kfar Qara 3007500, Israel
- Neurobiology, Biochemistry and Biophysics School, Wise Life Science Faculty, Tel Aviv University, Tel Aviv 69978, Israel
| | - Pablo Blinder
- Neurobiology, Biochemistry and Biophysics School, Wise Life Science Faculty, Tel Aviv University, Tel Aviv 69978, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel
| | - Pavel Ginzburg
- Department of Electrical Engineering, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel
- Light-Matter Interaction Centre, Tel Aviv University, Tel Aviv 69978, Israel
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Ahmed HB, Mikhail MM, Abdallah AEM, El-Shahat M, Emam HE. Pyrimidine-5-carbonitrile derivatives as sprout for CQDs proveniences: Antitumor and anti-inflammatory potentiality. Bioorg Chem 2023; 141:106902. [PMID: 37806048 DOI: 10.1016/j.bioorg.2023.106902] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 09/27/2023] [Accepted: 09/29/2023] [Indexed: 10/10/2023]
Abstract
A comparative study is proposed to show the effect of variation in the heteroatoms in the main skeleton of CQDs proveniences, on their affinity for nucleation of CQDs, as anti-inflammatory and anticancer drugs. Heterocyclic-based CQDs sprout was successfully exploited for preparation of three CQDs proveniences, named as; 2-(2,5-dimethoxyphenyl)-4,6-dioxo-6,11-dihydro-4H-pyrimido[2,1-b] quinazoline-3-carbonitrile (compound A), 2-(2,5-dimethoxyphenyl)-4,6-dioxo-4H,6H-benzo[e]pyrimido[2,1-b][1,3]oxazine-3-carbonitrile (compound S) and 2-(2,5-dimethoxyphenyl)-4,6-dioxo-4H,6H-benzo[e]pyrimido[2,1-b][1,3] thiazine-3-carbonitrile (compound T). Chemical formulas of CQDs proveniences & CQDs were verified via FTIR, 1HNMR, 13CNMR & XRD. Particle size of TM-CQDs, A-CQDs, S-CQDs & T-CQDs were estimated to be 3.7 ± 1.4, 4.6 ± 1.6, 5.9 ± 1.6 nm and 3.0 ± 1.3 nm, respectively. All of CQDs proveniences & CQDs were examined for their affinity as anti-inflammatory drugs via Griess assay. CQDs ingrained from TM (TM-CQDs) were detected with the highest NO inhibition% by increasing its concentration from 10 up to 100 μM to be 40 % to 89 %, respectively. Moreover, their anti-tumor performance against MCF-7: breast Adenocarcinoma cell line was approved via sulforhodamine B assay, whereas, IC50 was evaluated for TM-CQDs, A-CQDs, S-CQDs and T-CQDs to be 38.16, 36.09, 100 and 100 μg/ml, respectively.
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Affiliation(s)
- Hanan B Ahmed
- Chemistry Department, Faculty of Science, Helwan University, Ain-Helwan, Cairo 11795, Egypt.
| | - Mary M Mikhail
- Chemistry Department, Faculty of Science, Helwan University, Ain-Helwan, Cairo 11795, Egypt
| | - Amira E M Abdallah
- Chemistry Department, Faculty of Science, Helwan University, Ain-Helwan, Cairo 11795, Egypt
| | - Mahmoud El-Shahat
- Photochemistry Department, Chemical Industries Research Institute, National Research Centre, 33 EL Buhouth St., Dokki, Giza 12622, Egypt
| | - Hossam E Emam
- Department of Pretreatment and Finishing of Cellulosic Fibers, Textile Research and Technology Institute, National Research Centre, 33 EL Buhouth St., Dokki, Giza 12622, Egypt.
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Santos N, Valenzuela S, Segura C, Osorio-Roman I, Arrázola MS, Panadero-Medianero C, Santana PA, Ahumada M. Poly(ethylene imine)-chitosan carbon dots: study of its physical-chemical properties and biological in vitro performance. DISCOVER NANO 2023; 18:129. [PMID: 37847425 PMCID: PMC10581970 DOI: 10.1186/s11671-023-03907-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/03/2023] [Indexed: 10/18/2023]
Abstract
Carbon dots (CDs) have been quickly extended for nanomedicine uses because of their multiple applications, such as bioimaging, sensors, and drug delivery. However, the interest in increasing their photoluminescence properties is not always accompanied by cytocompatibility. Thus, a knowledge gap exists regarding their interactions with biological systems linked to the selected formulations and synthesis methods. In this work, we have developed carbon dots (CDs) based on poly (ethylene imine) (PEI) and chitosan (CS) by using microwave irradiation, hydrothermal synthesis, and a combination of both, and further characterized them by physicochemical and biological means. Our results indicate that synthesized CDs have sizes between 1 and 5 nm, a high presence of amine groups on the surface, and increased positive ζ potential values. Further, it is established that the choice and use of different synthesis procedures can contribute to a different answer to the CDs regarding their optical and biological properties. In this regard, PEI-only CDs showed the longest photoluminescent emission lifetime, non-hemolytic activity, and high toxicity against fibroblast. On the other hand, CS-only CDs have higher PL emission, non-cytotoxicity associated with fibroblast, and high hemolytic activity. Interestingly, their combination using the proposed methodologies allow a synergic effect in their CDs properties. Therefore, this work contributes to developing and characterizing CD formulations based on PEI and CS and better understanding the CD's properties and biological interaction.
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Affiliation(s)
- Nicolás Santos
- Escuela de Biotecnología, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, RM, Chile
| | - Santiago Valenzuela
- Instituto de Ciencias Aplicadas, Universidad Autónoma de Chile, El Llano Subercaseaux 2801, San Miguel, Santiago, Chile
| | - Camilo Segura
- Instituto de Ciencias Químicas, Facultad de Ciencias, Universidad Austral de Chile, Isla Teja S/N, Valdivia, Región de los Ríos, Chile
| | - Igor Osorio-Roman
- Instituto de Ciencias Químicas, Facultad de Ciencias, Universidad Austral de Chile, Isla Teja S/N, Valdivia, Región de los Ríos, Chile
| | - Macarena S Arrázola
- Centro de Biología Integrativa, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, RM, Chile
| | - Concepción Panadero-Medianero
- Centro de Biología Integrativa, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, RM, Chile
| | - Paula A Santana
- Instituto de Ciencias Aplicadas, Universidad Autónoma de Chile, El Llano Subercaseaux 2801, San Miguel, Santiago, Chile.
| | - Manuel Ahumada
- Escuela de Biotecnología, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, RM, Chile.
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, RM, Chile.
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Patra S, Purohit SS, Swain SK. In vivo fluorescence non-enzymatic glucose sensing technique for diabetes management by CQDs incorporated dextran nanocomposites in human blood serums. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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Kumar VB, Porat Z, Gedanken A. Synthesis of Doped/Hybrid Carbon Dots and Their Biomedical Application. NANOMATERIALS 2022; 12:nano12060898. [PMID: 35335711 PMCID: PMC8951121 DOI: 10.3390/nano12060898] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/04/2022] [Accepted: 03/05/2022] [Indexed: 02/07/2023]
Abstract
Carbon dots (CDs) are a novel type of carbon-based nanomaterial that has gained considerable attention for their unique optical properties, including tunable fluorescence, stability against photobleaching and photoblinking, and strong fluorescence, which is attributed to a large number of organic functional groups (amino groups, hydroxyl, ketonic, ester, and carboxyl groups, etc.). In addition, they also demonstrate high stability and electron mobility. This article reviews the topic of doped CDs with organic and inorganic atoms and molecules. Such doping leads to their functionalization to obtain desired physical and chemical properties for biomedical applications. We have mainly highlighted modification techniques, including doping, polymer capping, surface functionalization, nanocomposite and core-shell structures, which are aimed at their applications to the biomedical field, such as bioimaging, bio-sensor applications, neuron tissue engineering, drug delivery and cancer therapy. Finally, we discuss the key challenges to be addressed, the future directions of research, and the possibilities of a complete hybrid format of CD-based materials.
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Affiliation(s)
- Vijay Bhooshan Kumar
- Bar-Ilan Institute for Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
- Correspondence: (V.B.K.); (Z.P.); (A.G.)
| | - Ze’ev Porat
- Division of Chemistry, Nuclear Research Center-Negev, Beer-Sheva 8419001, Israel
- Unit of Environmental Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
- Correspondence: (V.B.K.); (Z.P.); (A.G.)
| | - Aharon Gedanken
- Bar-Ilan Institute for Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
- Correspondence: (V.B.K.); (Z.P.); (A.G.)
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