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Lin HC, Hsu KF, Lai CL, Wu TC, Chen HF, Lai CH. Mannoside-Modified Branched Gold Nanoparticles for Photothermal Therapy to MDA-MB-231 Cells. Molecules 2020; 25:molecules25081853. [PMID: 32316508 PMCID: PMC7221875 DOI: 10.3390/molecules25081853] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/14/2020] [Accepted: 04/15/2020] [Indexed: 12/13/2022] Open
Abstract
Recently, gold nanoparticles (Au NPs) have been used to study the treatment of malignant tumors due to their higher biocompatibility and lesser toxicity. In addition, they can be excited through a specific wavelength to produce oscillating plasmonic photothermal therapy (PPTT) on the basis of the localized surface plasma resonance (LSPR) effect. Au NPs can be heated to kill cancer cells in specific parts of the body in a noninvasive manner. In this study, branched gold nanoparticles (BAu NPs) were prepared by mixing HAuCl4 in a 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES) buffer solution in a molar ratio of 1:2000. The UV–vis absorption peak was detected in the range of 700–1000 nm. Subsequently, BAu NPs were chemically linked to a thiol-modified mannoside molecule via a stable sulfur–Au covalent bond (Man@BAu NPs). Due to the presence of abundant mannose receptors on human-breast-cancer cells, MDA-MB-231, Man@BAu NPs were found to be abundant inside cancer cells. After irradiating the Man@BAu NP-laden MDA-MB231 switch with a near-infrared (NIR) laser at 808 nm wavelength, the photothermal-conversion effect raised the surface temperature of Man@BAu NPs, thus inducing cell death. Our experiment results demonstrated the advantages of applying Man@BAu NPs in inducing cell death in MDA-MB-231.
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Affiliation(s)
- Han-Chen Lin
- Department of Anatomy, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Keng-Fang Hsu
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
| | - Chiao-Ling Lai
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung 402, Taiwan; (C.-L.L.); (T.-C.W.)
| | - Tzu-Chien Wu
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung 402, Taiwan; (C.-L.L.); (T.-C.W.)
| | - Hui-Fen Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
- Correspondence: (H.-F.C.); (C.-H.L.)
| | - Chian-Hui Lai
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung 402, Taiwan; (C.-L.L.); (T.-C.W.)
- Correspondence: (H.-F.C.); (C.-H.L.)
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Ki J, Jang E, Han S, Shin MK, Kang B, Huh YM, Haam S. Instantaneous pH-Boosted Functionalization of Stellate Gold Nanoparticles for Intracellular Imaging of miRNA. ACS Appl Mater Interfaces 2017; 9:17702-17709. [PMID: 28524648 DOI: 10.1021/acsami.6b16452] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Various types of nanoprobes have recently been utilized to monitor living organisms by detecting and imaging intracellular biomarkers, such as microRNAs (miRs). We here present a simple one-pot method to prepare stellate gold nanoparticles functionalized with miR-detecting molecular beacons (SGNP-MBs); low pH conditions permitted the rapid-high loading of MBs on the surface of SGNPs. Compared to the conventional gold nanoparticle-based MBs, SGNPs carried a 4.5-fold higher load of MBs and exhibited a 6.4-fold higher cellular uptake. We demonstrated that SGNP-MBs were successfully internalized in human gastric cancer cell lines and could be used to accurately detect and image intracellular miRs in an miR-specific manner. Furthermore, the relative levels of intracellular miRs in three different cell lines expressing miR-10b (high, moderate, and low levels) could be monitored using SGNP-MBs. Consequently, these results indicated that SGNP-MBs could have applications as highly potent, efficient nanoprobes to assess intracellular miR levels in living cells.
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Affiliation(s)
- Jisun Ki
- Department of Chemical and Biomolecular Engineering, Yonsei University , Yonsei-ro 50, Seoul 120-749, South Korea
| | - Eunji Jang
- Department of Chemical and Biomolecular Engineering, Yonsei University , Yonsei-ro 50, Seoul 120-749, South Korea
| | - Seungmin Han
- Department of Chemical and Biomolecular Engineering, Yonsei University , Yonsei-ro 50, Seoul 120-749, South Korea
| | - Moo-Kwang Shin
- Department of Chemical and Biomolecular Engineering, Yonsei University , Yonsei-ro 50, Seoul 120-749, South Korea
| | - Byunghoon Kang
- Department of Chemical and Biomolecular Engineering, Yonsei University , Yonsei-ro 50, Seoul 120-749, South Korea
| | - Yong-Min Huh
- Department of Radiology, College of Medicine, Yonsei University , Seoul 120-752, South Korea
| | - Seungjoo Haam
- Department of Chemical and Biomolecular Engineering, Yonsei University , Yonsei-ro 50, Seoul 120-749, South Korea
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Blanch AJ, Döblinger M, Rodríguez-Fernández J. Simple and Rapid High-Yield Synthesis and Size Sorting of Multibranched Hollow Gold Nanoparticles with Highly Tunable NIR Plasmon Resonances. Small 2015; 11:4550-4559. [PMID: 26068971 DOI: 10.1002/smll.201500095] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 03/18/2015] [Indexed: 06/04/2023]
Abstract
Branched gold nanoparticles with sharp tips are considered excellent candidates for sensing and field enhancement applications. Here, a rapid and simple synthesis strategy is presented that generates highly branched gold nanoparticles with hollow cores and a ca.100% yield through a simple one-pot seedless reaction at room temperature in the presence of Triton X-100. It is shown that multibranched hollow gold nanoparticles of tunable dimensions, branch density and branch length can be obtained by adjusting the concentrations of the reactants. Insights into the formation mechanism point toward an aggregative type of growth involving hollow core formation first, and branching thereafter. The pronounced near-infrared (NIR) plasmon band of the nanoparticles is due to the combined contribution from hollowness and branching, and can be tuned over a wide range (≈700-2000 nm). It is also demonstrated that the high environmental sensitivity of colloidal dispersions based on multibranched hollow gold nanoparticles can be boosted even further by separating the nanoparticles into fractions of given sizes and improved monodispersity by means of a glycerol density gradient. The possibility to obtain highly monodisperse multibranched hollow gold nanoparticles with predictable dimensions (50-300 nm) and branching and, therefore, tailored NIR plasmonic properties, highlights their potential for theranostic applications.
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Affiliation(s)
- Adam J Blanch
- Photonics and Optoelectronics Group Department of Physics and CeNS, Ludwig-Maximilians-Universität München, Amalienstr. 54, 80799, Munich, Germany
- Nanosystems Initiative Munich (NIM), Schellingstr. 4, 80799, Munich, Germany
| | - Markus Döblinger
- Nanosystems Initiative Munich (NIM), Schellingstr. 4, 80799, Munich, Germany
- Department of Chemistry and CeNS, Ludwig-Maximilians-Universität München Butenand, str. 11, 81377, Munich, Germany
| | - Jessica Rodríguez-Fernández
- Photonics and Optoelectronics Group Department of Physics and CeNS, Ludwig-Maximilians-Universität München, Amalienstr. 54, 80799, Munich, Germany
- Nanosystems Initiative Munich (NIM), Schellingstr. 4, 80799, Munich, Germany
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Favi PM, Gao M, Johana Sepúlveda Arango L, Ospina SP, Morales M, Pavon JJ, Webster TJ. Shape and surface effects on the cytotoxicity of nanoparticles: Gold nanospheres versus gold nanostars. J Biomed Mater Res A 2015; 103:3449-62. [PMID: 25904210 DOI: 10.1002/jbm.a.35491] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Revised: 04/07/2015] [Accepted: 04/08/2015] [Indexed: 12/30/2022]
Abstract
Gold nanoparticles are materials with unique optical properties that have made them very attractive for numerous biomedical applications. With the increasing discovery of techniques to synthesize novel nanoparticles such as star-shaped gold nanoparticles for biomedical applications, the safety and performance of these new nanomaterials must be systematically assessed before use. In this study, gold nanostars (AuNSTs) with multibranched surface structures were synthesized, and their influence on the cytotoxicity of human skin fibroblasts and rat fat pad endothelial cells (RFPECs) were assessed and compared with that of gold nanospheres (AuNSPs) with unbranched surfaces. Results showed that the AuNSPs with diameters of approximately 61.46 nm showed greater toxicity with fibroblast cells and RFPECs compared with the synthesized AuNSTs with diameters of approximately 33.69 nm. The AuNSPs were lethal at concentrations of 40 μg/mL for both cell lines, whereas the AuNSTs were less toxic at higher concentrations (400 μg/mL). The calculated IC50 (50% inhibitory concentration) values of the AuNSPs exposed to fibroblast cells were greater at 1 and 4 days of culture (26.4 and 27.7 μg/mL, respectively) compared with the RFPECs (13.6 and 13.8 μg/mL, respectively), indicating that the AuNSPs have a greater toxicity to endothelial cells. It was proposed that possible factors that could be promoting the reduced toxicity effects of the AuNSTs to fibroblast cells and RFPECs, compared with the AuNSPs may be size, surface chemistry, and shape of the gold nanoparticles. The reduced cell toxicity observed with the AuNSTs suggests that AuNSTs may be a promising material for use in biomedical applications.
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Affiliation(s)
- Pelagie Marlene Favi
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts
| | - Ming Gao
- Department of Pharmaceutical Sciences, School of Pharmacy, Bouvé College of Health Sciences, Northeastern University, Boston, Massachusetts
| | | | - Sandra Patricia Ospina
- Institute of Biology, University Research Headquarters, University of Antioquia, Medellín, Antioquia, Colombia
| | - Mariana Morales
- Department of Medicine, University of Antioquia, Medellín, Antioquia, Colombia
| | - Juan Jose Pavon
- Advanced Biomaterials and Regenerative Medicine - ABRM, Bioengineering Programme, University of Antioquia, Medellín, Antioquia, Colombia
| | - Thomas Jay Webster
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts.,Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, Saudi Arabia
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