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Facile synthesis of biocompatible sub-5 nm alginate-stabilised gold nanoparticles with sonosensitising properties. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Thambiraj S, Vijayalakshmi R, Ravi Shankaran D. An effective strategy for development of docetaxel encapsulated gold nanoformulations for treatment of prostate cancer. Sci Rep 2021; 11:2808. [PMID: 33531521 PMCID: PMC7854673 DOI: 10.1038/s41598-020-80529-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 12/03/2020] [Indexed: 01/30/2023] Open
Abstract
Nanoformulation based drug delivery is one of the most important research areas in the field of nanomedicine, which provides promising alternatives to the limitations of conventional chemotherapy. Nano drug delivery enables improved pharmacokinetic profile, bioavailability and therapeutic efficiency compared to the regular chemotherapeutic drugs. Herein, we have established a simple method for the synthesis of docetaxel (Dtx) encapsulated poly (ethylene glycol) (PEG) functionalized gold nanoparticles (AuNPs) for targeted drug delivery to prostate cancer. AuNPs were synthesized by the citrate ion reduction method followed by functionalization with thiol-PEG-amine (SH-PEG-NH2). SH-PEG-NH2 functionalized AuNPs were conjugated with the targeting vehicle, folic acid (FA). The anticancer drug, Dtx was encapsulated within AuNPs by the non-covalent linkage method. The physicochemical characteristics of the synthesized nanoformulations were extensively characterized by various spectral and microscopic studies. HR-TEM indicates the average size of the AuNPs is 16 nm and the nanoformulations is 18 nm. The encapsulation efficiency of the Dtx is ~ 96% which is confirmed by the elemental mapping analysis. The in vitro drug release profile of Dtx and AuNPs nanoformulations were studied by the dialysis membrane method. The anticancer activity of docetaxel encapsulated AuNPs were evaluated with prostate cancer cell lines (PC3). The drug encapsulated nanoformulations reduced the cell viability to about 40% (40 µM concentration at 24, 48 and 72 h of treatment). The optical microscopy observation reveals that the damage of prostate cancer cells after exposure to Dtx encapsulated AuNPs. The good cytotoxic activity of the present nanoformulation against prostate cancer cell lines enables its application for targeted drug delivery to prostate cancer.
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Affiliation(s)
- S Thambiraj
- Nano-Bio Materials and Sensors Laboratory, National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai, Tamil Nadu, 600 025, India
| | - R Vijayalakshmi
- Department of Preventive Oncology, Cancer Institute (WIA), Adyar, Chennai, 600 020, India
| | - D Ravi Shankaran
- Nano-Bio Materials and Sensors Laboratory, National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai, Tamil Nadu, 600 025, India.
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Pensa E, Karpowicz R, Jabłoński A, Trzybiński D, Woźniak K, Šakić D, Vrček V, Long NJ, Albrecht T, Kowalski K. Gold-Induced Desulfurization in a Bis(ferrocenyl) Alkane Dithiol. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Evangelina Pensa
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, London W12 0BZ, U.K
| | - Rafał Karpowicz
- Faculty of Chemistry, Department of Organic Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland
| | - Artur Jabłoński
- Faculty of Chemistry, Department of Organic Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland
| | - Damian Trzybiński
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
| | - Krzysztof Woźniak
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
| | - Davor Šakić
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia
| | - Valerije Vrček
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia
| | - Nicholas J. Long
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, London W12 0BZ, U.K
| | - Tim Albrecht
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, London W12 0BZ, U.K
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Konrad Kowalski
- Faculty of Chemistry, Department of Organic Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland
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Sánchez-Obrero G, Chávez M, Madueño R, Blázquez M, Pineda T, López-Romero JM, Sarabia F, Hierrezuelo J, Contreras-Caceres R. Study of the self-assembly process of an oligo(ethylene glycol)-thioacetyl substituted theophylline (THEO) on gold substrates. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.07.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Mani G, Kim S, Kim K. Development of Folate-Thioglycolate-Gold Nanoconjugates by Using Citric Acid-PEG Branched Polymer for Inhibition of MCF-7 Cancer Cell Proliferation. Biomacromolecules 2018; 19:3257-3267. [PMID: 29979877 DOI: 10.1021/acs.biomac.8b00543] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Development of folate (FA)-functionalized gold nanoparticles (AuNPs) has greatly increased in recent years due to their potential in cancer treatment. As surface functionalization of polymer-free AuNPs with thiol groups could result in agglomeration and precipitation, AuNPs should be stabilized with an efficient polymer. In this study, citric acid-PEG branched polymer (CPEG) acted as a reducing as well as stabilizing agent in the synthesis of AuNPs. The thiol group of thioglycolic acid (TGA) attached to CPEG-stabilized AuNPs and interacted with the free carboxylic acid group on the surface of TGA-AuNP nanoconjugates. Stable TGA-AuNP nanoconjugates were obtained only with CPEG-stabilized AuNPs and not with citrate-stabilized AuNPs. The carboxylic acid group on the surface of AuNPs was used to attach FA via an EDC/NHS coupling reaction to obtain FA-TGA-AuNP nanoconjugates. In vitro cytotoxicity studies indicated that FA-TGA-AuNPs were not toxic to normal cells up to a concentration of 200 μg/mL. However, FA-TGA-AuNP nanoconjugates effectively inhibited proliferation of MCF-7 cancer cells at a low concentration of 25 μg/mL after 3 days of incubation. The anticancer activity of FA-TGA-AuNPs was enhanced by incorporating the anticancer drug 5-fluorouracil into the nanoconjugates, which exhibited sustained drug release up to 5 days. Hence, the developed biocompatible FA-TGA-AuNPs could be used for specific killing of breast cancer cells.
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Affiliation(s)
- Gajendiran Mani
- Division of Bioengineering, School of Life Sciences and Bioengineering , Incheon National University , Incheon , Korea 22012
| | - Sungjun Kim
- Division of Bioengineering, School of Life Sciences and Bioengineering , Incheon National University , Incheon , Korea 22012
| | - Kyobum Kim
- Division of Bioengineering, School of Life Sciences and Bioengineering , Incheon National University , Incheon , Korea 22012
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Epanchintseva A, Vorobjev P, Pyshnyi D, Pyshnaya I. Fast and Strong Adsorption of Native Oligonucleotides on Citrate-Coated Gold Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:164-172. [PMID: 29228777 DOI: 10.1021/acs.langmuir.7b02529] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The adsorption of oligonucleotides on citrate-coated gold nanoparticles (AuNPs) is studied under conditions "right after the synthesis", i.e., in a weak citrate solution at a pH value close to neutral (5.8 ± 0.2). We found that short-term elevation of reaction temperature under these conditions provides fast and strong adsorption of oligonucleotides on the surface of AuNPs. The affinity of oligonucleotides to AuNPs depends on the length of the oligonucleotide and its nucleotide composition. The shortest oligonucleotide in this study, T6, is the most affine, having the equilibrium binding constant KD = 0.10 ± 0.04 nM and the highest surface density-up to 200 molecules per one particle. Olygothymidylates are at least as affine to AuNPs as oligoadenylates, while oligocytidilates show the lowest affinity. We also studied the interaction of resulting DNA/AuNPs with a series of low- and high-molecular thiols, which provide a variety of operations with adsorbed oligonucleotides: displacement (complete or partial) and encapsulation in a secondary shell. These experiments imitate someway the conditions in a living cell or serum, and show that DNA/AuNPs obtained by this method can be applied in a number of bionanotechnological applications, including delivery of nucleic acid therapeutics and theranostics.
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Affiliation(s)
- Anna Epanchintseva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences , 8 Lavrentiev Avenue, Novosibirsk, 630090, Russia
| | - Pavel Vorobjev
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences , 8 Lavrentiev Avenue, Novosibirsk, 630090, Russia
- Novosibirsk State University , 2, Pirogova Street, Novosibirsk, 630090, Russia
| | - Dmitrii Pyshnyi
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences , 8 Lavrentiev Avenue, Novosibirsk, 630090, Russia
- Novosibirsk State University , 2, Pirogova Street, Novosibirsk, 630090, Russia
| | - Inna Pyshnaya
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences , 8 Lavrentiev Avenue, Novosibirsk, 630090, Russia
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Silver nanoparticles modified with thiomalic acid as a colorimetric probe for determination of cystamine. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1991-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Li R, Zhang Y. Understanding the adsorption of branched polyamine on surface of gold nanoparticles by molecular dynamics simulations. SURF INTERFACE ANAL 2016. [DOI: 10.1002/sia.6047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Rui Li
- Department of Chemistry; Liaocheng University; Liaocheng 252059 China
| | - Yuanfu Zhang
- Department of Chemistry; Liaocheng University; Liaocheng 252059 China
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Gobbo P, Luo W, Cho SJ, Wang X, Biesinger MC, Hudson RHE, Workentin MS. Small gold nanoparticles for interfacial Staudinger-Bertozzi ligation. Org Biomol Chem 2016; 13:4605-12. [PMID: 25786777 DOI: 10.1039/c5ob00372e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Small gold nanoparticles (AuNPs) that possess interfacial methyl-2-(diphenylphosphino)benzoate moieties have been successfully synthesized (Staudinger-AuNPs) and characterized by multi-nuclear MR spectroscopy, transmission electron microscopy (TEM), UV-Vis spectroscopy, thermogravimetric analysis, and X-ray photoelectron spectroscopy (XPS). In particular, XPS was remarkably sensitive for characterization of the novel nanomaterial, and in furnishing proof of its interfacial reactivity. These Staudinger-AuNPs were found to be stable to the oxidation of the phosphine center. The reaction with benzyl azide in a Staudinger-Bertozzi ligation, as a model system, was investigated using (31)P NMR spectroscopy. This demonstrated that the interfacial reaction was clean and quantitative. To showcase the potential utility of these Staudinger-AuNPs in bioorganic chemistry, a AuNP bioconjugate was prepared by reacting the Staudinger-AuNPs with a novel azide-labeled CRGDK peptide. The CRGDK peptide could be covalently attached to the AuNP efficiently, chemoselectively, and with a high loading.
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Affiliation(s)
- Pierangelo Gobbo
- The University of Western Ontario and the Centre for Materials and Biomaterials Research, Richmond Street, London, Ontario, Canada.
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Vericat C, Vela ME, Corthey G, Pensa E, Cortés E, Fonticelli MH, Ibañez F, Benitez GE, Carro P, Salvarezza RC. Self-assembled monolayers of thiolates on metals: a review article on sulfur-metal chemistry and surface structures. RSC Adv 2014. [DOI: 10.1039/c4ra04659e] [Citation(s) in RCA: 149] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
A review article on fundamental aspects of thiolate self-assembled monolayers (SAMs) on the (111) and (100) surfaces of the Cu and Ni groups is presented.
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Affiliation(s)
- C. Vericat
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Universidad Nacional de La Plata-CONICET
- La Plata, Argentina
| | - M. E. Vela
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Universidad Nacional de La Plata-CONICET
- La Plata, Argentina
| | - G. Corthey
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Universidad Nacional de La Plata-CONICET
- La Plata, Argentina
| | - E. Pensa
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Universidad Nacional de La Plata-CONICET
- La Plata, Argentina
| | - E. Cortés
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Universidad Nacional de La Plata-CONICET
- La Plata, Argentina
| | - M. H. Fonticelli
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Universidad Nacional de La Plata-CONICET
- La Plata, Argentina
| | - F. Ibañez
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Universidad Nacional de La Plata-CONICET
- La Plata, Argentina
| | - G. E. Benitez
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Universidad Nacional de La Plata-CONICET
- La Plata, Argentina
| | - P. Carro
- Departamento de Química
- Area Química Física. Instituto de Materiales y Nanotecnología
- Universidad de La Laguna
- , Spain
| | - R. C. Salvarezza
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
- Universidad Nacional de La Plata-CONICET
- La Plata, Argentina
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