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Sondhi P, Lingden D, Bhattarai JK, Demchenko AV, Stine KJ. Applications of Nanoporous Gold in Therapy, Drug Delivery, and Diagnostics. METALS 2023; 13:78. [PMID: 39238564 PMCID: PMC11376205 DOI: 10.3390/met13010078] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 09/07/2024]
Abstract
Nanoporous gold (np-Au) has promising applications in therapeutic delivery. The promises arise from its high surface area-to-volume ratio, ease of tuning shape and size, ability to be modified by organic molecules including drugs, and biocompatibility. Furthermore, np-Au nanostructures can generate the photothermal effect. This effect can be used either for controlled release of drugs of therapeutic importance or for destroying cancer cells by heating locally. Despite the enormous potential, the research on the therapeutical use of the np-Au is still in its early stage. In this review, we discuss the current progress and future directions of np-Au for therapeutic applications.
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Affiliation(s)
- Palak Sondhi
- Department of Chemistry and Biochemistry, University of Missouri-Saint Louis, Saint Louis, MO 63121, USA
| | - Dhanbir Lingden
- Department of Chemistry and Biochemistry, University of Missouri-Saint Louis, Saint Louis, MO 63121, USA
| | - Jay K Bhattarai
- Mallinckrodt Pharmaceuticals Company, Saint Louis, MO 63042, USA
| | - Alexei V Demchenko
- Department of Chemistry, Saint Louis University, Saint Louis, MO 63103, USA
| | - Keith J Stine
- Department of Chemistry and Biochemistry, University of Missouri-Saint Louis, Saint Louis, MO 63121, USA
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Lee T, Kwon S, Choi HJ, Lim H, Lee J. Highly Sensitive and Reliable microRNA Detection with a Recyclable Microfluidic Device and an Easily Assembled SERS Substrate. ACS OMEGA 2021; 6:19656-19664. [PMID: 34368553 PMCID: PMC8340404 DOI: 10.1021/acsomega.1c02306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) detection in microfluidics is an interesting topic because of its high sensitivity, miniaturization, and ability to perform online detection. However, the difficulties in generating SERS-based microfluidic devices with uniform signal reproducibility and high sensitivity have hindered their widespread application. In addition, the recyclability of the SERS-based microfluidic devices can contribute to their broad commercialization, but the possible contamination in the detection area and cumbersome cleaning procedures remain a challenge. In this study, we describe a repeatable SERS-based microfluidic device comprising a disposable SERS substrate and a reusable microfluidic channel. The microfluidic channel was prepared via mechanical processing, and the SERS substrate was fabricated by nanoimprint lithography and electrodeposition. The SERS substrate and microfluidic channel can be attached easily because they were assembled using screws. The SERS substrate achieved an excellent SERS enhancement factor greater than 108 over a large sample area, signal uniformity, and substrate-to-substrate reproducibility. This guaranteed reliable and sensitive signals in every experiment. Furthermore, the disposable SERS substrate contributed exact detection of target molecules. Finally, their practical application was demonstrated with the repeated use of the microfluidic device by detecting a specific micro-RNA, (miR-34a) at a concentration as low as 5 fM.
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Nadal E, Milaniak N, Glenat H, Laroche G, Massines F. A new approach for synthesizing plasmonic polymer nanocomposite thin films by combining a gold salt aerosol and an atmospheric pressure low-temperature plasma. NANOTECHNOLOGY 2021; 32:175601. [PMID: 33470988 DOI: 10.1088/1361-6528/abdd60] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The proof of the concept of a new, onestep and safe by design process to synthesize metal-polymer nanocomposites thin films on a large surface is presented. It is based on the injection of an aerosol of a solution of metal (gold) salts dissolved in a polymerizable solvent (isopropanol) into an argon atmospheric pressure dielectric barrier discharge. The main novelty of this method resides in the fact that the nanoparticles are formed in situ, inside the plasma reactor, in the gas phase. Consequently, the nanoparticle synthesis and deposition are concomitant with the solvent polymerization used to produce the matrix, which makes it possible to obtain homogeneous layers of non-agglomerated nanoparticles (NPs) with high NPs density. By toggling between low and high-frequency discharges, gold/polymer nanocomposites with different morphologies and optical properties are synthesized. The effect of the concentration of gold in the aerosol and the gas residence time in the plasma as well as the ratio of high and low-frequency discharge and their repetition rate are presented. The thin films are systematically characterized by AFM and UV-visible spectroscopy to analyze their morphologies along with their plasmonic resonances.
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Affiliation(s)
- Elie Nadal
- CNRS PROMES, Processes Materials Solar Energy Laboratory, Rambla de la Thermodynamique, F-66100 Perpignan, France
- University of Perpignan Via Domitia, UPVD, 52 Avenue Paul Alduy, F-66100, Perpignan, France
| | - Natalia Milaniak
- CNRS PROMES, Processes Materials Solar Energy Laboratory, Rambla de la Thermodynamique, F-66100 Perpignan, France
- Laboratoire d'Ingénierie de Surface, Centre de Recherche sur les Matériaux Avances, Département de Génie des Mines, de la Métallurgie et des Matériaux, Université Laval, 1045, Avenue de la Médicine, Québec G1V 0A6, Québec, Canada
| | - Hervé Glenat
- CNRS PROMES, Processes Materials Solar Energy Laboratory, Rambla de la Thermodynamique, F-66100 Perpignan, France
| | - Gaétan Laroche
- Laboratoire d'Ingénierie de Surface, Centre de Recherche sur les Matériaux Avances, Département de Génie des Mines, de la Métallurgie et des Matériaux, Université Laval, 1045, Avenue de la Médicine, Québec G1V 0A6, Québec, Canada
| | - Françoise Massines
- CNRS PROMES, Processes Materials Solar Energy Laboratory, Rambla de la Thermodynamique, F-66100 Perpignan, France
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Lee T, Lim J, Park K, Lim EK, Lee JJ. Peptidoglycan-Binding Protein Metamaterials Mediated Enhanced and Selective Capturing of Gram-Positive Bacteria and Their Specific, Ultra-Sensitive, and Reproducible Detection via Surface-Enhanced Raman Scattering. ACS Sens 2020; 5:3099-3108. [PMID: 32786378 DOI: 10.1021/acssensors.0c01139] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Biological metamaterials with a specific size and spacing are necessary for developing highly sensitive and selective sensing systems to detect hazardous bacteria in complex solutions. Herein, the construction of peptidoglycan-binding protein (PGBP)-based metamaterials to selectively capture Gram-positive cells with high efficacy is reported. Nanoimprint lithography was used to generate a nanohole pattern as a template, the inside of which was modified with nickel(II)-nitrilotriacetic acid (Ni-NTA). Then, PGBP metamaterials were fabricated by immobilizing PGBP via chelation between Ni-NTA and six histidines on PGBP. Compared to the flat and spread PGBP-covered bare substrates, the PGBP-based metamaterials enabled selective capturing of Gram-positive bacteria with high efficacy, owing to enhanced interactions between the metamaterials and bacterial surface not shown in bulk materials. Thereafter, the specific strain and quantitative information of the captured bacteria was obtained by surface-enhanced Raman scattering mapping analysis in the 1 to 1 × 106 cfu/mL range within 30 min. It should be noted that no additional signal amplification process was required for lowly abundant bacteria, even at the single-bacterium level. The PGBP-based metamaterials could be regenerated multiple times with preserved sensing efficiency. Finally, this assay can detect specific Gram-positive bacteria, such as Staphylococcus aureus, in human plasma.
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Affiliation(s)
- Taeksu Lee
- Department of Nano Manufacturing Technology, Korea Institute of Machinery and Materials (KIMM), 156 Gajeongbuk-Ro, Yuseong-Gu, Daejeon 34103, Republic of Korea
| | - Jaewoo Lim
- Bionano Technology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, South Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 125 Gwahak-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Kyoungsook Park
- BioNano Health Guard Research Center, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, South Korea
- Department of General Education, Daejeon Health Institute of Technology, 21 Chungjeong-ro, Dong-gu, Daejeon 34504, Korea
| | - Eun-Kyung Lim
- Bionano Technology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, South Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 125 Gwahak-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Jae-Jong Lee
- Department of Nano Manufacturing Technology, Korea Institute of Machinery and Materials (KIMM), 156 Gajeongbuk-Ro, Yuseong-Gu, Daejeon 34103, Republic of Korea
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Kim J, Yeom M, Lee T, Kim HO, Na W, Kang A, Lim JW, Park G, Park C, Song D, Haam S. Porous gold nanoparticles for attenuating infectivity of influenza A virus. J Nanobiotechnology 2020; 18:54. [PMID: 32209114 PMCID: PMC7092597 DOI: 10.1186/s12951-020-00611-8] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 03/16/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Influenza viruses (IVs) have become increasingly resistant to antiviral drugs that target neuraminidase and matrix protein 2 due to gene mutations that alter their drug-binding target protein regions. Consequently, almost all recent IV pandemics have exhibited resistance to commercial antiviral vaccines. To overcome this challenge, an antiviral target is needed that is effective regardless of genetic mutations. MAIN BODY In particular, hemagglutinin (HA), a highly conserved surface protein across many IV strains, could be an effective antiviral target as it mediates binding of IVs with host cell receptors, which is crucial for membrane fusion. HA has 6 disulfide bonds that can easily bind with the surfaces of gold nanoparticles. Herein, we fabricated porous gold nanoparticles (PoGNPs) via a surfactant-free emulsion method that exhibited strong affinity for disulfide bonds due to gold-thiol interactions, and provided extensive surface area for these interactions. A remarkable decrease in viral infectivity was demonstrated by increased cell viability results after exposing MDCK cells to various IV strains (H1N1, H3N2, and H9N2) treated with PoGNP. Most of all, the viability of MDCK cells infected with all IV strains increased to 96.8% after PoGNP treatment of the viruses compared to 33.9% cell viability with non-treated viruses. Intracellular viral RNA quantification by real-time RT-PCR also confirmed that PoGNP successfully inhibited viral membrane fusion by blocking the viral entry process through conformational deformation of HA. CONCLUSION We believe that the technique described herein can be further developed for PoGNP-utilized antiviral protection as well as metal nanoparticle-based therapy to treat viral infection. Additionally, facile detection of IAV can be achieved by developing PoGNP as a multiplatform for detection of the virus.
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Affiliation(s)
- Jinyoung Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seoul, 120-749 Republic of Korea
| | - Minjoo Yeom
- Department of Pharmacy, Korea University College of Pharmacy, Sejong-ro 2511, Sejong, 30019 Republic of Korea
| | - Taeksu Lee
- Department of Nano Manufacturing Technology, Korea Institute of Machinery and Materials (KIMM), 156 Gajeongbuk-Ro, Yuseong-Gu, Daejeon, 34103 Republic of Korea
| | - Hyun-Ouk Kim
- Department of Pharmacy, Korea University College of Pharmacy, Sejong-ro 2511, Sejong, 30019 Republic of Korea
| | - Woonsung Na
- College of Veterinary Medicine, Chonnam National University, Yongbong-ro 77, Buk-Gu, Gwangju, South Korea
| | - Aram Kang
- Department of Pharmacy, Korea University College of Pharmacy, Sejong-ro 2511, Sejong, 30019 Republic of Korea
| | - Jong-Woo Lim
- Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seoul, 120-749 Republic of Korea
| | - Geunseon Park
- Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seoul, 120-749 Republic of Korea
| | - Chaewon Park
- Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seoul, 120-749 Republic of Korea
| | - Daesub Song
- Department of Pharmacy, Korea University College of Pharmacy, Sejong-ro 2511, Sejong, 30019 Republic of Korea
| | - Seungjoo Haam
- Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seoul, 120-749 Republic of Korea
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Eom G, Hwang A, Lee DK, Guk K, Moon J, Jeong J, Jung J, Kim B, Lim EK, Kang T. Superb Specific, Ultrasensitive, and Rapid Identification of the Oseltamivir-Resistant H1N1 Virus: Naked-Eye and SERS Dual-Mode Assay Using Functional Gold Nanoparticles. ACS APPLIED BIO MATERIALS 2019; 2:1233-1240. [DOI: 10.1021/acsabm.8b00807] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Gayoung Eom
- Bionanotechnology Research Center, KRIBB, Daejeon 34141, Republic of Korea
- Department of Chemistry, KAIST, Daejeon 34141, Republic of Korea
| | - Ahreum Hwang
- Bionanotechnology Research Center, KRIBB, Daejeon 34141, Republic of Korea
- Department of Chemistry, KAIST, Daejeon 34141, Republic of Korea
| | - Do Kyung Lee
- BioNano Health Guard Research Center, KRIBB, Daejeon 34141, Republic of Korea
| | - Kyeonghye Guk
- Bionanotechnology Research Center, KRIBB, Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, Daejeon 34113, Republic of Korea
| | - Jeong Moon
- Bionanotechnology Research Center, KRIBB, Daejeon 34141, Republic of Korea
- Department of Chemical and Biomolecular Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Jinyoung Jeong
- Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, Daejeon 34113, Republic of Korea
- Environmental Disease Research Center, KRIBB, Daejeon 34141, Republic of Korea
| | - Juyeon Jung
- Bionanotechnology Research Center, KRIBB, Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, Daejeon 34113, Republic of Korea
| | - Bongsoo Kim
- Department of Chemistry, KAIST, Daejeon 34141, Republic of Korea
| | - Eun-Kyung Lim
- Bionanotechnology Research Center, KRIBB, Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, Daejeon 34113, Republic of Korea
| | - Taejoon Kang
- Bionanotechnology Research Center, KRIBB, Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, Daejeon 34113, Republic of Korea
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Lee T, Wi JS, Oh A, Na HK, Lee J, Lee K, Lee TG, Haam S. Highly robust, uniform and ultra-sensitive surface-enhanced Raman scattering substrates for microRNA detection fabricated by using silver nanostructures grown in gold nanobowls. NANOSCALE 2018; 10:3680-3687. [PMID: 29323386 DOI: 10.1039/c7nr08066b] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Highly sensitive and reproducible surface enhanced Raman spectroscopy (SERS) requires not only a nanometer-level structural control, but also superb uniformity across the SERS substrate for practical imaging and sensing applications. However, in the past, increased reproducibility of the SERS signal was incompatible with increased SERS sensitivity. This work presents multiple silver nanocrystals inside periodically arrayed gold nanobowls (SGBs) via an electrochemical reaction at an overpotential of -3.0 V (vs. Ag/AgCl). The gaps between the silver nanocrystals serve as hot spots for SERS enhancement, and the evenly distributed gold nanobowls lead to a high device-to-device signal uniformity. The SGBs on the large sample surface exhibit an excellent SERS enhancement factor of up to 4.80 × 109, with excellent signal uniformity (RSD < 8.0 ± 2.5%). Furthermore, the SGBs can detect specific microRNA (miR-34a), which plays a widely acknowledged role as biomarkers in diagnosis and treatment of diseases. Although the small size and low abundance of miR-34a in total RNA samples hinder their detection, by utilizing the advantages of SGBs in SERS sensing, reliable and direct detection of human gastric cancer cells has been successfully accomplished.
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Affiliation(s)
- Taeksu Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, Republic of Korea.
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Lee T, Son HY, Choi Y, Shin Y, Oh S, Kim J, Huh YM, Haam S. Minimum hyaluronic acid (HA) modified magnetic nanocrystals with less facilitated cancer migration and drug resistance for targeting CD44 abundant cancer cells by MR imaging. J Mater Chem B 2017; 5:1400-1407. [DOI: 10.1039/c6tb02306a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We report minimal amount of hyaluronic acid (HA) conjugated magnetic nanocrystals (mHMs) for targeted imaging of CD44 abundant breast cancer cells with less side effects via MRI.
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Affiliation(s)
- Taeksu Lee
- Department of Chemical and Biomolecular Engineering
- College of Engineering
- Yonsei University
- Seoul 120-749
- Republic of Korea
| | - Hye Young Son
- Department of Radiology
- College of Medicine
- Yonsei University
- Seoul 120-752
- Republic of Korea
| | - Yuna Choi
- Department of Radiology
- College of Medicine
- Yonsei University
- Seoul 120-752
- Republic of Korea
| | - Youngmin Shin
- Department of Radiology
- College of Medicine
- Yonsei University
- Seoul 120-752
- Republic of Korea
| | - Seungjae Oh
- YUHS-KRIBB Medical Convergence Research Institute
- Yonsei University
- Seoul 120-752
- Republic of Korea
| | - Jinyoung Kim
- Department of Chemical and Biomolecular Engineering
- College of Engineering
- Yonsei University
- Seoul 120-749
- Republic of Korea
| | - Yong-Min Huh
- Department of Radiology
- College of Medicine
- Yonsei University
- Seoul 120-752
- Republic of Korea
| | - Seungjoo Haam
- Department of Chemical and Biomolecular Engineering
- College of Engineering
- Yonsei University
- Seoul 120-749
- Republic of Korea
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