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Singh A, Yumnam S, Kunwar A, Tripathi VS, Neogy S, Rath MC. One‐Pot, Rapid and Facile Synthesis of Thioglycolic Acid capped CdSe quantum dots: Tuning of Properties, Mechanistic Investigations by Cyclic Voltammetry and Cytotoxicity Studies. ChemistrySelect 2020. [DOI: 10.1002/slct.202000974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Avinash Singh
- Department of Science & HumanitiesMLR Institute of Technology Dundigal Hyderabad India 500043
| | - Sujata Yumnam
- Department of Science & HumanitiesMLR Institute of Technology Dundigal Hyderabad India 500043
| | - Amit Kunwar
- Radiation and Photochemistry DivisionBhabha Atomic Research Centre Mumbai India 400085
| | - V. S. Tripathi
- Radiation and Photochemistry DivisionBhabha Atomic Research Centre Mumbai India 400085
| | - Suman Neogy
- Materials Science DivisionBhabha Atomic Research Centre Mumbai India 400085
| | - M. C. Rath
- Radiation and Photochemistry DivisionBhabha Atomic Research Centre Mumbai India 400085
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Barba-Vicente V, Parra MJA, Boyero-Benito JF, Auría-Soro C, Juanes-Velasco P, Landeira-Viñuela A, Furones-Cuadrado Á, Hernández ÁP, Manzano-Román R, Fuentes M. Detection of Human p53 In-Vitro Expressed in a Transcription-Translation Cell-Free System by a Novel Conjugate Based on Cadmium Sulphide Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E984. [PMID: 32455562 PMCID: PMC7279493 DOI: 10.3390/nano10050984] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/13/2020] [Accepted: 05/16/2020] [Indexed: 01/23/2023]
Abstract
Here, cadmium sulphide quantum dots (CdS QDs) have been synthetized and functionalized with Bovine Serum Albumin (BSA) in a colloidal aqueous solution with a stability of over 3 months. Specific synthesis conditions, in homogeneous phase and at low temperature, have allowed limitation of S2- concentration, hence, as a consequence, there is restricted growth of the nanoparticles (NPs). This fact allows binding with BSA in the most favorable manner for the biomolecule. The presence of Cd2+ ions on the surface of the CdS nanoparticle is counteracted by the negatively charged domains of the BSA, resulting in the formation of small NPs, with little tendency for aggregation. Temperature and pH have great influence on the fluorescence characteristics of the synthetized nanoparticles. Working at low temperatures (4 °C) and pH 10-11 have proven the best result as shown by hydrolysis kinetic control of the thioacetamide precursor of S2- ion. Biological activity of the coupled BSA is maintained allowing subsequent bioconjugation with other biomolecules such as antibodies. The chemical conjugation with anti-Glutathione S-transferase (α-GST) antibody, a common tag employed in human recombinant fusion proteins, produces a strong quenching of fluorescence that proves the possibilities of its use in biological labelling. Finally, p53, onco-human recombinant protein (GST tagged in COOH terminus), has been in situ IVTT (in vitro transcription-translation) expressed and efficiently captured by the α-GST-CdS QD conjugate as a proof of the biocompatibility on IVTT systems and the functionality of conjugated antibody.
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Affiliation(s)
- Víctor Barba-Vicente
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemistry, University of Salamanca, 37008 Salamanca, Spain; (V.B.-V.); (J.F.B.-B.); (C.A.-S.)
| | - María Jesús Almendral Parra
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemistry, University of Salamanca, 37008 Salamanca, Spain; (V.B.-V.); (J.F.B.-B.); (C.A.-S.)
| | - Juan Francisco Boyero-Benito
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemistry, University of Salamanca, 37008 Salamanca, Spain; (V.B.-V.); (J.F.B.-B.); (C.A.-S.)
| | - Carlota Auría-Soro
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemistry, University of Salamanca, 37008 Salamanca, Spain; (V.B.-V.); (J.F.B.-B.); (C.A.-S.)
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (Á.F.-C.); (Á.-P.H.)
| | - Pablo Juanes-Velasco
- Proteomics Unit, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (P.J.-V.); (A.L.-V.); (R.M.-R.)
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (Á.F.-C.); (Á.-P.H.)
| | - Alicia Landeira-Viñuela
- Proteomics Unit, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (P.J.-V.); (A.L.-V.); (R.M.-R.)
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (Á.F.-C.); (Á.-P.H.)
| | - Álvaro Furones-Cuadrado
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (Á.F.-C.); (Á.-P.H.)
| | - Ángela-Patricia Hernández
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (Á.F.-C.); (Á.-P.H.)
| | - Raúl Manzano-Román
- Proteomics Unit, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (P.J.-V.); (A.L.-V.); (R.M.-R.)
| | - Manuel Fuentes
- Proteomics Unit, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (P.J.-V.); (A.L.-V.); (R.M.-R.)
- Department of Medicine and Cytometry General Service-Nucleus, CIBERONC CB16/12/00400, Cancer Research Centre (IBMCC/CSIC/USAL/IBSAL), 37007 Salamanca, Spain; (Á.F.-C.); (Á.-P.H.)
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Lee AR, Park SJ. Silica-encapsulated ZnSe Quantum Dots as a Temperature Sensor Media. APPLIED CHEMISTRY FOR ENGINEERING 2015. [DOI: 10.14478/ace.2015.1049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Das L, Guleria A, Adhikari S. Aqueous phase one-pot green synthesis of SnSe nanosheets in a protein matrix: negligible cytotoxicity and room temperature emission in the visible region. RSC Adv 2015. [DOI: 10.1039/c5ra09448h] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A rapid, facile, reproducible and green method for synthesizing SnSe nanosheets in aqueous media is reported. Cyclic voltammetry studies indicate better thermodynamic feasibility for reducing SnSe, while the nanomaterial is nontoxic up to a 100 μM concentration in CHO cells.
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Affiliation(s)
- Laboni Das
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
| | - Apurav Guleria
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
| | - Soumyakanti Adhikari
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085
- India
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