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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.
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Sim KH, Mir M, Jelke S, Tarafder S, Kim J, Lee CH. Quantum dots-labeled polymeric scaffolds for in vivo tracking of degradation and tissue formation. Bioact Mater 2022; 16:285-292. [PMID: 35415285 PMCID: PMC8965775 DOI: 10.1016/j.bioactmat.2022.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 02/10/2022] [Accepted: 03/03/2022] [Indexed: 12/04/2022] Open
Abstract
The inevitable gap between in vitro and in vivo degradation rate of biomaterials has been a challenging factor in the optimal designing of scaffold's degradation to be balanced with new tissue formation. To enable non-/minimum-invasive tracking of in vivo scaffold degradation, chemical modifications have been applied to label polymers with fluorescent dyes. However, the previous approaches may have limited expandability due to complicated synthesis processes. Here, we introduce a simple and efficient method to fluorescence labeling of polymeric scaffolds via blending with near-infrared (NIR) quantum dots (QDs), semiconductor nanocrystals with superior optical properties. QDs-labeled, 3D-printed PCL scaffolds showed promising efficiency and reliability in quantitative measurement of degradation using a custom-built fiber-optic imaging modality. Furthermore, QDs-PCL scaffolds showed neither cytotoxicity nor secondary labeling of adjacent cells. QDs-PCL scaffolds also supported the engineering of fibrous, cartilaginous, and osteogenic tissues from mesenchymal stem/progenitor cells (MSCs). In addition, QDs-PCL enabled a distinction between newly forming tissue and the remaining mass of scaffolds through multi-channel imaging. Thus, our findings suggest a simple and efficient QDs-labeling of PCL scaffolds and minimally invasive imaging modality that shows significant potential to enable in vivo tracking of scaffold degradation as well as new tissue formation.
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Affiliation(s)
- Kun Hee Sim
- Regenerative Engineering Laboratory, Center for Dental and Craniofacial Research, Columbia University Irving Medical Center, 630 West 168th Street, VC12-211, New York, NY, 10032, USA
| | - Mohammad Mir
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
| | - Sophia Jelke
- Regenerative Engineering Laboratory, Center for Dental and Craniofacial Research, Columbia University Irving Medical Center, 630 West 168th Street, VC12-211, New York, NY, 10032, USA
| | - Solaiman Tarafder
- Regenerative Engineering Laboratory, Center for Dental and Craniofacial Research, Columbia University Irving Medical Center, 630 West 168th Street, VC12-211, New York, NY, 10032, USA
| | - Jinho Kim
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
| | - Chang H. Lee
- Regenerative Engineering Laboratory, Center for Dental and Craniofacial Research, Columbia University Irving Medical Center, 630 West 168th Street, VC12-211, New York, NY, 10032, USA
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3
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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.
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Sonodynamic Therapy Exciting the Herbal Nanocomposite with Spider-web-like Effect to Combat Otitis Media. Int J Pharm 2022; 621:121820. [DOI: 10.1016/j.ijpharm.2022.121820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 04/21/2022] [Accepted: 05/07/2022] [Indexed: 11/22/2022]
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Rodríguez-de-la-Peña S, Gómez-Salazar S, Gutiérrez-Ortega JA, Badillo-Camacho J, Peregrina-Lucano AA, Shenderovich IG, Manríquez-González R. Novel Silica Hybrid Adsorbent Functionalized with l-Glutathione Used for the Uptake of As(V) from Aqueous Media. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Santiago Rodríguez-de-la-Peña
- Departamento de Química, Universidad de Guadalajara, Blvd. Marcelino García Barragán #1421, esq. Olímpica, Guadalajara, Jalisco 44430, Mexico
| | - Sergio Gómez-Salazar
- Departamento de Ingeniería Química, Universidad de Guadalajara, Blvd. Marcelino García Barragán #1421, esq. Olímpica, Guadalajara, Jalisco 44430, Mexico
| | - José Antonio Gutiérrez-Ortega
- Departamento de Química, Universidad de Guadalajara, Blvd. Marcelino García Barragán #1421, esq. Olímpica, Guadalajara, Jalisco 44430, Mexico
| | - Jessica Badillo-Camacho
- Departamento de Química, Universidad de Guadalajara, Blvd. Marcelino García Barragán #1421, esq. Olímpica, Guadalajara, Jalisco 44430, Mexico
| | - Alejandro Aarón Peregrina-Lucano
- Departamento de Farmacobiología, Universidad de Guadalajara, Blvd. Marcelino García Barragán #1421, esq. Olímpica, Guadalajara, Jalisco 44430, Mexico
| | - Ilya G. Shenderovich
- Faculty of Chemistry and Pharmacy, University of Regensburg, Universitaetstrasse 31, Regensburg 93053, Germany
| | - Ricardo Manríquez-González
- Departamento de Química, Universidad de Guadalajara, Blvd. Marcelino García Barragán #1421, esq. Olímpica, Guadalajara, Jalisco 44430, Mexico
- Departamento de Madera, Celulosa y Papel, CUCEI, Universidad de Guadalajara, Km 15.5, Carretera Guadalajara-Nogales, Guadalajara, Jalisco 45020, Mexico
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Tsolekile N, Parani S, de Macedo EF, Lebepe TC, Maluleke R, Ncapayi V, Matoetoe MC, Songca SP, Conceição K, Tada DB, Oluwafemi OS. Photodynamic Therapy and Antibacterial Activities of a Novel Synthesized Quaternary Zn-Cu-In-S/ZnS QDs- mTHPP Porphyrin Conjugate. Int J Nanomedicine 2022; 17:5315-5325. [PMID: 36411766 PMCID: PMC9675416 DOI: 10.2147/ijn.s382302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 09/16/2022] [Indexed: 11/16/2022] Open
Abstract
Background Photodynamic therapy (PDT) is a non-invasive treatment modality that destroys abnormally growing cells or microorganisms. Porphyrins are used as photosensitizers in PDT; however, their clinical application has been limited by their poor water solubility, resulting in aggregation and low quantum yields of reactive oxygen species (ROS). Methods To overcome these limitations and improve PDT efficacy, we herein report the conjugation of ZnCuInS/ZnS (ZCIS/ZnS) quantum dots (QDs) to 5,10,15,20-tetrakis(3-hydroxyphenyl)porphyrin (mTHPP). The optimal conditions for QDs porphyrin conjugation formation were systematically evaluated. Discussion This study further assessed the PDT efficacy and antibacterial potency of the synthesized ZCIS/ZnS-mTHPP conjugates. The PDT efficacy of the QDs, mTHPP, and conjugate was evaluated against the murine metastatic melanoma (B16 F10 Nex2) cell line. This was performed with and without LED irradiation. Results The conjugate exhibited the highest reduction in cell viability following LED irradiation (72%) compared to the bare QDs (19%) and mTHPP (1%). Antimicrobial studies conducted on E. coli showed that the conjugation exhibits a higher antibacterial effect than the bare QDs, even without light. Conclusion The results suggest that conjugate is a promising class of materials for anti-cancer and antimicrobial PDT.
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Affiliation(s)
- Ncediwe Tsolekile
- Department of Chemistry, Cape Peninsula University of Technology, Cape Town, 2000, South Africa.,Department of Chemical Sciences, University of Johannesburg, Johannesburg, 2028, South Africa.,Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg, South Africa
| | - Sundararajan Parani
- Department of Chemical Sciences, University of Johannesburg, Johannesburg, 2028, South Africa.,Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg, South Africa
| | - Erenilda Ferreira de Macedo
- Laboratory of Nanomaterials and Nanotoxicology, Institute of Science and Technology, Federal University of São Paulo, São Paulo, Brazil
| | - Thabang Calvin Lebepe
- Department of Chemical Sciences, University of Johannesburg, Johannesburg, 2028, South Africa.,Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg, South Africa
| | - Rodney Maluleke
- Department of Chemical Sciences, University of Johannesburg, Johannesburg, 2028, South Africa.,Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg, South Africa
| | - Vuyelwa Ncapayi
- Department of Chemical Sciences, University of Johannesburg, Johannesburg, 2028, South Africa.,Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg, South Africa
| | - Mangaka Clara Matoetoe
- Department of Chemistry, Cape Peninsula University of Technology, Cape Town, 2000, South Africa
| | | | - Katia Conceição
- Laboratory of Peptide Biochemistry, Institute of Science and Technology, Federal University of São Paulo, São Paulo, Brazil
| | - Dayane Batista Tada
- Laboratory of Nanomaterials and Nanotoxicology, Institute of Science and Technology, Federal University of São Paulo, São Paulo, Brazil
| | - Oluwatobi Samuel Oluwafemi
- Department of Chemical Sciences, University of Johannesburg, Johannesburg, 2028, South Africa.,Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg, South Africa
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Lebepe TC, Parani S, Ncapayi V, Maluleke R, Mbaz GIM, Fanoro OT, Varghese JR, Komiya A, Kodama T, Oluwafemi OS. Graphene Oxide-Gold Nanorods Nanocomposite-Porphyrin Conjugate as Promising Tool for Cancer Phototherapy Performance. Pharmaceuticals (Basel) 2021; 14:ph14121295. [PMID: 34959695 PMCID: PMC8706362 DOI: 10.3390/ph14121295] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 11/27/2021] [Accepted: 12/01/2021] [Indexed: 12/26/2022] Open
Abstract
The cancer mortality rate has increased, and conventional cancer treatments are known for having many side effects. Therefore, it is imperative to find a new therapeutic agent or modify the existing therapeutic agents for better performance and efficiency. Herein, a synergetic phototherapeutic agent based on a combination of photothermal and photodynamic therapy is proposed. The phototherapeutic agent consists of water-soluble cationic porphyrin (5,10,15,20-tetrakis(N-methylpyridinium-3-yl)porphyrin, TMePyP), and gold nanorods (AuNRs) anchored on graphene-oxide (GO) sheet. The TMePyP was initially synthesized by Adler method, followed by methylation, while GO and AuNRs were synthesized using Hummer’s and seed-mediated methods, respectively. The structural and optical properties of TMePyP were confirmed using UV-Vis, zeta analyzer, PL, FTIR and NMR. The formation of both GO and AuNRs was confirmed by UV-Vis-NIR, FTIR, TEM and zeta analyzer. TMePyP and AuNRs were anchored on GO to form GO@AuNRs-TMePyP nanocomposite. The as-synthesized nanocomposite was stable in RPMI and PBS medium, and, on irradiation, produced high heat than the bare AuNRs, with high photothermal efficiency. In addition, the nanocomposite produced higher singlet oxygen than TMePyP with high biocompatibility in the absence of light. These results indicated that the as-synthesized nanocomposite is a promising dual photodynamic and photothermal agent for cancer therapy.
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Affiliation(s)
- Thabang Calvin Lebepe
- Department of Chemical Science, University of Johannesburg, Johannesburg 2028, South Africa; (T.C.L.); (S.P.); (V.N.); (R.M.); (G.I.M.M.); (J.R.V.)
- Centre for Nanomaterials Sciences Research, University of Johannesburg, Johannesburg 2028, South Africa;
| | - Sundararajan Parani
- Department of Chemical Science, University of Johannesburg, Johannesburg 2028, South Africa; (T.C.L.); (S.P.); (V.N.); (R.M.); (G.I.M.M.); (J.R.V.)
- Centre for Nanomaterials Sciences Research, University of Johannesburg, Johannesburg 2028, South Africa;
| | - Vuyelwa Ncapayi
- Department of Chemical Science, University of Johannesburg, Johannesburg 2028, South Africa; (T.C.L.); (S.P.); (V.N.); (R.M.); (G.I.M.M.); (J.R.V.)
- Centre for Nanomaterials Sciences Research, University of Johannesburg, Johannesburg 2028, South Africa;
| | - Rodney Maluleke
- Department of Chemical Science, University of Johannesburg, Johannesburg 2028, South Africa; (T.C.L.); (S.P.); (V.N.); (R.M.); (G.I.M.M.); (J.R.V.)
- Centre for Nanomaterials Sciences Research, University of Johannesburg, Johannesburg 2028, South Africa;
| | - Grace It Mwad Mbaz
- Department of Chemical Science, University of Johannesburg, Johannesburg 2028, South Africa; (T.C.L.); (S.P.); (V.N.); (R.M.); (G.I.M.M.); (J.R.V.)
- Centre for Nanomaterials Sciences Research, University of Johannesburg, Johannesburg 2028, South Africa;
| | - Olufunto Tolulope Fanoro
- Centre for Nanomaterials Sciences Research, University of Johannesburg, Johannesburg 2028, South Africa;
| | - Jose Rajendran Varghese
- Department of Chemical Science, University of Johannesburg, Johannesburg 2028, South Africa; (T.C.L.); (S.P.); (V.N.); (R.M.); (G.I.M.M.); (J.R.V.)
- Centre for Nanomaterials Sciences Research, University of Johannesburg, Johannesburg 2028, South Africa;
| | - Atsuki Komiya
- Institute of Fluid Science, Tohoku University, Sendai 980-8577, Japan;
| | - Tetsuya Kodama
- Graduate School of Biomedical Engineering, Tohoku University, Sendai 980-8575, Japan;
| | - Oluwatobi Samuel Oluwafemi
- Department of Chemical Science, University of Johannesburg, Johannesburg 2028, South Africa; (T.C.L.); (S.P.); (V.N.); (R.M.); (G.I.M.M.); (J.R.V.)
- Centre for Nanomaterials Sciences Research, University of Johannesburg, Johannesburg 2028, South Africa;
- Correspondence:
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8
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Diagnosis of Prostate Cancer and Prostatitis Using near Infra-Red Fluorescent AgInSe/ZnS Quantum Dots. Int J Mol Sci 2021; 22:ijms222212514. [PMID: 34830396 PMCID: PMC8619584 DOI: 10.3390/ijms222212514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/28/2021] [Accepted: 10/03/2021] [Indexed: 01/14/2023] Open
Abstract
The link between the microbiome and cancer has led researchers to search for a potential probe for intracellular targeting of bacteria and cancer. Herein, we developed near infrared-emitting ternary AgInSe/ZnS quantum dots (QDs) for dual bacterial and cancer imaging. Briefly, water-soluble AgInSe/ZnS QDs were synthesized in a commercial kitchen pressure cooker. The as-synthesized QDs exhibited a spherical shape with a particle diameter of 4.5 ± 0.5 nm, and they were brightly fluorescent with a photoluminescence maximum at 705 nm. The QDs showed low toxicity against mouse mammary carcinoma (FM3A-Luc), mouse colon carcinoma (C26), malignant fibrous histiocytoma-like (KM-Luc/GFP) and prostate cancer cells, a greater number of accumulations in Staphylococcus aureus, and good cellular uptake in prostate cancer cells. This work is an excellent step towards using ternary QDs for diagnostic and guided therapy for prostate cancer.
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Castro KADF, Westrup KCM, Silva S, Pereira PMR, Simões MMQ, Neves MDGPMS, Cavaleiro JAS, Tomé JPC, Nakagaki S. Iron(III) Complexation with Galactodendritic Porphyrin Species and Hydrocarbons’ Oxidative Transformations. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kelly A. D. F. Castro
- Laboratório de Química Bioinorgânica e Catálise Universidade Federal do Paraná (UFPR) CP 19061, CEP 81531-980 Curitiba Paraná Brazil
- LAQV-REQUIMTE Department of Chemistry University of Aveiro 3810-193 Aveiro Portugal
| | - Kátia C. M. Westrup
- Laboratório de Química Bioinorgânica e Catálise Universidade Federal do Paraná (UFPR) CP 19061, CEP 81531-980 Curitiba Paraná Brazil
| | - Sandrina Silva
- LAQV-REQUIMTE Department of Chemistry University of Aveiro 3810-193 Aveiro Portugal
| | | | - Mário M. Q. Simões
- LAQV-REQUIMTE Department of Chemistry University of Aveiro 3810-193 Aveiro Portugal
| | | | - José A. S. Cavaleiro
- LAQV-REQUIMTE Department of Chemistry University of Aveiro 3810-193 Aveiro Portugal
| | - João P. C. Tomé
- Centro de Química Estrutural Instituto Superior Técnico Departamento de Química Universidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Shirley Nakagaki
- Laboratório de Química Bioinorgânica e Catálise Universidade Federal do Paraná (UFPR) CP 19061, CEP 81531-980 Curitiba Paraná Brazil
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Villalva MD, Agarwal V, Ulanova M, Sachdev PS, Braidy N. Quantum dots as a theranostic approach in Alzheimer's disease: a systematic review. Nanomedicine (Lond) 2021; 16:1595-1611. [PMID: 34180261 DOI: 10.2217/nnm-2021-0104] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Aim: Quantum dots (QDs) are nanoparticles that have an emerging application as theranostic agents in several neurodegenerative diseases. The advantage of QDs as nanomedicine is due to their unique optical properties that provide high sensitivity, stability and selectivity at a nanoscale range. Objective: To offer renewed insight into current QD research and elucidate its promising application in Alzheimer's disease (AD) diagnosis and therapy. Methods: A comprehensive literature search was conducted in PubMed and Google Scholar databases that included the following search terms: 'quantum dots', 'blood-brain barrier', 'cytotoxicity', 'toxicity' and 'Alzheimer's disease'; PRISMA guidelines were adhered to. Results: Thirty-four publications were selected to evaluate the ability of QDs to cross the blood-brain barrier, potential toxicity and current AD diagnostic and therapeutic applications. Conclusion: QD's unique optical properties and versatility to conjugate to various biomolecules, while maintaining a nanoscale size, render them a promising theranostic tool in AD.
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Affiliation(s)
- Maria D Villalva
- Centre for Healthy Brain Aging, School of Psychiatry, University of New South Wales (UNSW), Sydney, Australia
| | - Vipul Agarwal
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney, Australia
| | - Marina Ulanova
- Centre for Healthy Brain Aging, School of Psychiatry, University of New South Wales (UNSW), Sydney, Australia
| | - Perminder S Sachdev
- Centre for Healthy Brain Aging, School of Psychiatry, University of New South Wales (UNSW), Sydney, Australia.,Neuropsychiatric Institute, Euroa Centre, Prince of Wales Hospital, Sydney, Australia
| | - Nady Braidy
- Centre for Healthy Brain Aging, School of Psychiatry, University of New South Wales (UNSW), Sydney, Australia
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11
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Hurtado CR, Hurtado GR, de Cena GL, Queiroz RC, Silva AV, Diniz MF, dos Santos VR, Trava-Airoldi V, Baptista MDS, Tsolekile N, Oluwafemi OS, Conceição K, Tada DB. Diamond Nanoparticles-Porphyrin mTHPP Conjugate as Photosensitizing Platform: Cytotoxicity and Antibacterial Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1393. [PMID: 34070326 PMCID: PMC8227420 DOI: 10.3390/nano11061393] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/14/2021] [Accepted: 03/16/2021] [Indexed: 12/12/2022]
Abstract
Conjugation of photosensitizers (PS) with nanoparticles has been largely used as a strategy to stabilize PS in the biological medium resulting in photosensitizing nanoparticles of enhanced photoactivity. Herein, (Meso-5, 10, 15, 20-tetrakis (3-hydroxyphenyl) phorphyryn (mTHPP) was conjugated with diamond nanoparticles (ND) by covalent bond. Nanoconjugate ND-mTHPP showed suitable stability in aqueous suspension with 58 nm of hydrodynamic diameter and Zeta potential of -23 mV. The antibacterial activity of ND-mTHPP was evaluated against Escherichia coli for different incubation times (0-24 h). The optimal activity was observed after 2 h of incubation and irradiation (660 nm; 51 J/cm2) performed right after the addition of ND-mTHPP (100 μg/mL) to the bacterial suspension. The inhibitory activity was 56% whereas ampicillin at the same conditions provided only 14% of bacterial growth inhibition. SEM images showed agglomerate of ND-mTHPP adsorbed on the bacterial cell wall, suggesting that the antimicrobial activity of ND-mTHPP was afforded by inducing membrane damage. Cytotoxicity against murine embryonic fibroblast cells (MEF) was also evaluated and ND-mTHPP was shown to be noncytotoxic since viability of cells cultured for 24 h in the presence of the nanoconjugate (100 μg/mL) was 78%. Considering the enhanced antibacterial activity and the absence of cytotoxic effect, it is possible to consider the ND-mTHPP nanoconjugate as promising platform for application in antimicrobial photodynamic therapy (aPDT).
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Affiliation(s)
- Carolina Ramos Hurtado
- Federal Institute of São Paulo (IFSP), São José dos Campos 12223-201, São Paulo, Brazil; (C.R.H.); (R.C.Q.)
- Nanomaterials and Nanotoxicology Laboratory, Institute of Science and Technology, Federal University of São Paulo (UNIFESP), São José dos Campos 12231-280, São Paulo, Brazil
- Peptide Biochemistry Laboratory, Institute of Science and Technology, Federal University of São Paulo (UNIFESP), São José dos Campos 12231-280, São Paulo, Brazil; (G.L.d.C.); (K.C.)
| | - Gabriela Ramos Hurtado
- Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos 12247-004, São Paulo, Brazil;
- Institute of Advanced Sea Studies (IEAMAr), São Paulo State University (UNESP), São José dos Campos 12247-004, São Paulo, Brazil
| | - Gabrielle Lupeti de Cena
- Peptide Biochemistry Laboratory, Institute of Science and Technology, Federal University of São Paulo (UNIFESP), São José dos Campos 12231-280, São Paulo, Brazil; (G.L.d.C.); (K.C.)
| | - Rafaela Campos Queiroz
- Federal Institute of São Paulo (IFSP), São José dos Campos 12223-201, São Paulo, Brazil; (C.R.H.); (R.C.Q.)
- Nanomaterials and Nanotoxicology Laboratory, Institute of Science and Technology, Federal University of São Paulo (UNIFESP), São José dos Campos 12231-280, São Paulo, Brazil
| | | | - Milton Faria Diniz
- Fundamental Sciences Division, Technological Institute of Aeronautics (ITA), São José dos Campos 12228-900, São Paulo, Brazil;
| | - Verônica Ribeiro dos Santos
- Bioceramics Laboratory, Institute of Science and Technology, Federal University of São Paulo (UNIFESP), São José dos Campos 12231-280, São Paulo, Brazil;
| | - Vladimir Trava-Airoldi
- Sensors and Materials Associated Laboratory, National Institute for Space Research (INPE), São José dos Campos 12227-010, São Paulo, Brazil;
| | - Maurício da Silva Baptista
- Department of Biochemistry, Institute of Chemistry, University of São Paulo (USP), São Paulo 05508-000, São Paulo, Brazil;
| | - Ncediwe Tsolekile
- Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa; (N.T.); (O.S.O.)
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa
| | - Oluwatobi Samuel Oluwafemi
- Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa; (N.T.); (O.S.O.)
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2028, South Africa
| | - Katia Conceição
- Peptide Biochemistry Laboratory, Institute of Science and Technology, Federal University of São Paulo (UNIFESP), São José dos Campos 12231-280, São Paulo, Brazil; (G.L.d.C.); (K.C.)
| | - Dayane Batista Tada
- Nanomaterials and Nanotoxicology Laboratory, Institute of Science and Technology, Federal University of São Paulo (UNIFESP), São José dos Campos 12231-280, São Paulo, Brazil
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12
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The Photoluminescence and Biocompatibility of CuInS2-Based Ternary Quantum Dots and Their Biological Applications. CHEMOSENSORS 2020. [DOI: 10.3390/chemosensors8040101] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Semiconductor quantum dots (QDs) have become a unique class of materials with great potential for applications in biomedical and optoelectronic devices. However, conventional QDs contains toxic heavy metals such as Pb, Cd and Hg. Hence, it is imperative to find an alternative material with similar optical properties and low cytotoxicity. Among these materials, CuInS2 (CIS) QDs have attracted a lot of interest due to their direct band gap in the infrared region, large optical absorption coefficient and low toxic composition. These factors make them a good material for biomedical application. This review starts with the origin and photophysical characteristics of CIS QDs. This is followed by various synthetic strategies, including synthesis in organic and aqueous solvents, and the tuning of their optical properties. Lastly, their significance in various biological applications is presented with their prospects in clinical applications.
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Delices A, Moodelly D, Hurot C, Hou Y, Ling WL, Saint-Pierre C, Gasparutto D, Nogues G, Reiss P, Kheng K. Aqueous Synthesis of DNA-Functionalized Near-Infrared AgInS 2/ZnS Core/Shell Quantum Dots. ACS APPLIED MATERIALS & INTERFACES 2020; 12:44026-44038. [PMID: 32840358 DOI: 10.1021/acsami.0c11337] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Biocompatibility, biofunctionality, and chemical stability are essential criteria to be fulfilled by quantum dot (QD) emitters for bio-imaging and -sensing applications. In addition to these criteria, achieving efficient near-infrared (NIR) emission with nontoxic QDs remains very challenging. In this perspective, we developed water-soluble NIR-emitting AgInS2/ZnS core/shell (AIS/ZnS) QDs functionalized with DNA. The newly established aqueous route relying on a two-step hot-injection synthesis led to highly luminescent chalcopyrite-type AIS/ZnS core/shell QDs with an unprecedented photoluminescence quantum yield (PLQY) of 55% at 700 nm and a long photoluminescence (PL) decay time of 900 ns. Fast and slow hot injection of the precursors were compared for the AIS core QD synthesis, yielding a completely different behavior in terms of size, size distribution, stoichiometry, and crystal structure. The PL peak positions of both types of core QDs were 710 (fast) and 760 nm (slow injection) with PLQYs of 36 and 8%, respectively. The slow and successive incorporation of the Zn and S precursors during the subsequent shell growth step on the stronger emitting cores promoted the formation of a three-monolayer thick ZnS shell, evidenced by the increase of the average QD size from 3.0 to 4.8 nm. Bioconjugation of the AIS/ZnS QDs with hexylthiol-modified DNA was achieved during the ZnS shell growth, resulting in a grafting level of 5-6 DNA single strands per QD. The successful chemical conjugation of DNA was attested by UV-vis spectroscopy and agarose gel electrophoresis. Importantly, surface plasmon resonance imaging experiments using complementary DNA strands further corroborated the successful coupling and the stability of the AIS/ZnS-DNA QD conjugates as well as the preservation of the biological activity of the anchored DNA. The strong NIR emission and biocompatibility of these AIS/ZnS-DNA QDs provide a high potential for their use in biomedical applications.
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Affiliation(s)
- Annette Delices
- Université Grenoble Alpes, CEA, CNRS, IRIG, PHELIQS, Grenoble F-38000, France
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, UMR 5819, Grenoble F-38000, France
| | - Davina Moodelly
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, UMR 5819, Grenoble F-38000, France
| | - Charlotte Hurot
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, UMR 5819, Grenoble F-38000, France
| | - Yanxia Hou
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, UMR 5819, Grenoble F-38000, France
| | - Wai Li Ling
- Université Grenoble Alpes, CEA, CNRS, IBS, Grenoble F-38000, France
| | | | - Didier Gasparutto
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, UMR 5819, Grenoble F-38000, France
| | - Gilles Nogues
- University Grenoble Alpes, CNRS, Institut Néel, Grenoble F-38000, France
| | - Peter Reiss
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, UMR 5819, Grenoble F-38000, France
| | - Kuntheak Kheng
- Université Grenoble Alpes, CEA, CNRS, IRIG, PHELIQS, Grenoble F-38000, France
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