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Tran NM, Nguyen AN, Bae J, Kim J, Kim D, Yoo H. Recent strategies for constructing hierarchical multicomponent nanoparticles/metal-organic framework hybrids and their applications. Nanoscale Adv 2023; 5:3589-3605. [PMID: 37441260 PMCID: PMC10334412 DOI: 10.1039/d3na00213f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 05/25/2023] [Indexed: 07/15/2023]
Abstract
Hybrid nanoparticles with unique tailored morphologies and compositions can be utilized for numerous applications owing to their combination of inherent properties as well as the structural and supportive functions of each component. Controlled encapsulation of nanoparticles within nanospaces (NPNSs) of metal-organic frameworks (MOFs) (denoted as NPNS@MOF) can generate a large number of hybrid nanomaterials, facilitating superior activity in targeted applications. In this review, recent strategies for the fabrication of NPNS@MOFs with a hierarchical architecture, tailorability, unique intrinsic properties, and superior catalytic performance are summarized. In addition, the latest and most important examples in this sector are emphasized since they are more conducive to the practical applicability of NPNS@MOF nanohybrids.
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Affiliation(s)
- Ngoc Minh Tran
- Department of Materials Science and Chemical Engineering, Hanyang University Ansan Gyeonggi-do 15588 Republic of Korea
| | - Anh Ngoc Nguyen
- Department of Materials Science and Chemical Engineering, Hanyang University Ansan Gyeonggi-do 15588 Republic of Korea
| | - Jungeun Bae
- Department of Materials Science and Chemical Engineering, Hanyang University Ansan Gyeonggi-do 15588 Republic of Korea
| | - Jinhee Kim
- Department of Materials Science and Chemical Engineering, Hanyang University Ansan Gyeonggi-do 15588 Republic of Korea
| | - Dahae Kim
- Department of Materials Science and Chemical Engineering, Hanyang University Ansan Gyeonggi-do 15588 Republic of Korea
| | - Hyojong Yoo
- Department of Materials Science and Chemical Engineering, Hanyang University Ansan Gyeonggi-do 15588 Republic of Korea
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Nguyen TN, Nguyen AN, Tran NM, Park IH, Yoo H. Hierarchical packing of racemic metallosupramolecular cages with Ni(II)-based triple-stranded helicate building blocks. IUCrJ 2023; 10:321-328. [PMID: 36995774 PMCID: PMC10161775 DOI: 10.1107/s2052252523002385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 03/12/2023] [Indexed: 05/06/2023]
Abstract
Three novel hierarchical Ni-based metallosupramolecular cages were constructed from nickel ions, pyridine dicarboxylates and isophthalate derivative ligands (the substituents on C5 of isophthalate are methyl, tert-butyl and bromo groups). In every cage, two multinuclear nickel clusters, assembled from four nickel atoms and three pyridine dicarboxylate ligands, are interlinked by three isophthalate-derivative ligands to form a nickel-based triple-stranded helicate (TSH), which then becomes the supramolecular building block for the fabrication of a metallocage. Six homochiral TSH supramolecular building blocks, either left (M)-handed or right (P)-handed, are connected by four linking nickel atoms to generate M6 and P6 discrete racemic cage molecules (M6 - cage with six M-TSHs; P6 - cage with six P-TSHs). The crystal packing of the racemic cages was characterized by single-crystal X-ray diffraction. An additional cobalt-based molecular cage with 5-methylisophthalate bridging ligands was synthesized for host-guest interaction studies. The methyl groups in Co- and Ni-TSH can act as guest units to be accommodated in the cone-shaped metal clusters (host) of an adjacent cage.
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Affiliation(s)
- Thanh Nhan Nguyen
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Anh Ngoc Nguyen
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Ngoc Minh Tran
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - In Hyeok Park
- Graduate School of Analytical Science and Technology (GRAST), Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hyojong Yoo
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
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Lee DN, Kim YR, Yang S, Tran NM, Park BJ, Lee SJ, Kim Y, Yoo H, Kim SJ, Shin JH. Controllable Nitric Oxide Storage and Release in Cu-BTC: Crystallographic Insights and Bioactivity. Int J Mol Sci 2022; 23:ijms23169098. [PMID: 36012363 PMCID: PMC9409197 DOI: 10.3390/ijms23169098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 07/11/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 01/24/2023] Open
Abstract
Crystalline metal–organic frameworks (MOFs) are extensively used in areas such as gas storage and small-molecule drug delivery. Although Cu-BTC (1, MOF-199, BTC: benzene-1,3,5-tricarboxylate) has versatile applications, its NO storage and release characteristics are not amenable to therapeutic usage. In this work, micro-sized Cu-BTC was prepared solvothermally and then processed by ball-milling to prepare nano-sized Cu-BTC (2). The NO storage and release properties of the micro- and nano-sized Cu-BTC MOFs were morphology dependent. Control of the hydration degree and morphology of the NO delivery vehicle improved the NO release characteristics significantly. In particular, the nano-sized NO-loaded Cu-BTC (NO⊂nano-Cu-BTC, 4) released NO at 1.81 µmol·mg−1 in 1.2 h in PBS, which meets the requirements for clinical usage. The solid-state structural formula of NO⊂Cu-BTC was successfully determined to be [CuC6H2O5]·(NO)0.167 through single-crystal X-ray diffraction, suggesting no structural changes in Cu-BTC upon the intercalation of 0.167 equivalents of NO within the pores of Cu-BTC after NO loading. The structure of Cu-BTC was also stably maintained after NO release. NO⊂Cu-BTC exhibited significant antibacterial activity against six bacterial strains, including Gram-negative and positive bacteria. NO⊂Cu-BTC could be utilized as a hybrid NO donor to explore the synergistic effects of the known antibacterial properties of Cu-BTC.
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Affiliation(s)
- Do Nam Lee
- Ingenium College of Liberal Arts (Chemistry), Kwangwoon University, Seoul 01897, Korea
| | - Yeong Rim Kim
- Department of Chemistry, Kwangwoon University, Seoul 01897, Korea
| | - Sohyeon Yang
- Nanobio-Energy Materials Center, Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Ngoc Minh Tran
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan-si 15588, Korea
- Department of Chemistry, University of Sciences, Hue University, Hue City 530000, Vietnam
| | - Bong Joo Park
- Department of Electrical and Biological Physics, Kwangwoon University, Seoul 01897, Korea
- Correspondence: (B.J.P.); (J.H.S.); Tel.: +82-2-940-8629 (B.J.P.); +82-2-940-5627 (J.H.S.)
| | - Su Jung Lee
- Ingenium College of Liberal Arts (Chemistry), Kwangwoon University, Seoul 01897, Korea
| | - Youngmee Kim
- Nanobio-Energy Materials Center, Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Hyojong Yoo
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan-si 15588, Korea
| | - Sung-Jin Kim
- Nanobio-Energy Materials Center, Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Jae Ho Shin
- Department of Chemistry, Kwangwoon University, Seoul 01897, Korea
- Correspondence: (B.J.P.); (J.H.S.); Tel.: +82-2-940-8629 (B.J.P.); +82-2-940-5627 (J.H.S.)
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Nguyen T, Tran NM, Park IH, Yoo H. Heteroleptic Triple-Stranded Metallosupramolecules with Hydrophobic Inner Voids. ACS Omega 2022; 7:13067-13074. [PMID: 35474782 PMCID: PMC9026104 DOI: 10.1021/acsomega.2c00447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 03/25/2022] [Indexed: 06/14/2023]
Abstract
The systematic combination of well-defined coordination spheres and multiple types of ligands (heteroleptic) can lead to the generation of hierarchical metallosupramolecules with a high level of complexity and functionality. In particular, a specific multilevel coordination-driven assembly through the initiate generation of multinuclear clusters can form unique heteroleptic multiple-stranded supramolecular complexes. Herein, we report novel triple-stranded nickel-based supramolecules constructed from two different ditopic ligands ([1,1':3',1''-terphenyl]-4,4''-dicarboxylate (TP) and 2,6-pyridinedicarboxylate (PDA)) and a nickel precursor. The solid-state structures of the as-synthesized supramolecules revealed that three PDA ligands are employed to fabricate a tetranuclear ({Ni4}) cluster, and two {Ni4} clusters are assembled to form the final triple-stranded metallosupramolecules by three TP ligands. The bridging TP ligands also provide large inner voids with highly hydrophobic environments. Structural investigation of the generated complexes provided a deeper understanding of the aspects driving the formation of heteroleptic supramolecules, which is crucial for the design of multiple-strands with desired morphologies and functionalities.
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Affiliation(s)
- Thanh
Nhan Nguyen
- Department
of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Ngoc Minh Tran
- Department
of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - In-Hyeok Park
- Graduate
School of Analytical Science and Technology (GRAST), Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hyojong Yoo
- Department
of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
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Youn DH, Jung H, Tran NM, Jeon JP, Yoo H. The Therapeutic Role of Nanoparticle Shape in Traumatic Brain Injury : An in vitro Comparative Study. J Korean Neurosurg Soc 2022; 65:196-203. [PMID: 35108773 PMCID: PMC8918243 DOI: 10.3340/jkns.2021.0185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/23/2021] [Indexed: 11/27/2022] Open
Abstract
Objective To perform a comparative analysis of therapeutic effects associated with two different shapes of ceria nanoparticles, ceria nanorods (Ceria NRs) and ceria nanospheres (Ceria NSs), in an in vitro model of traumatic brain injury (TBI). Methods In vitro TBI was induced using six-well confluent plates by manually scratching with a sterile pipette tip in a 6×6-square grid. The cells were then incubated and classified into cells with scratch injury without nanoparticles and cells with scratch injury, which were treated separately with 1.16 mM of Ceria NSs and Ceria NRs. Antioxidant activities and anti-inflammatory effects were analyzed. Results Ceria NRs and Ceria NSs significantly reduced the level of reactive oxygen species compared with the control group of SH-SY5Y cells treated with Dulbecco's phosphate-buffered saline. The mRNA expression of superoxide dismutases was also reduced in nanoparticle-treated SH-SY5Y cells, but apparently the degree of mRNA expression decrease was not dependent on the nanoparticle shape. Exposure to ceria nanoparticles also decreased the cyclooxygenase-2 expression, especially prominent in Ceria NR-treated group than that in Ceria NS-treated group. Conclusion Ceria nanoparticles exhibit antioxidant and anti-inflammatory effects in TBI models in vitro. Ceria NRs had better antiinflammatory effect than Ceria NSs, but showed similar antioxidant activity.
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Affiliation(s)
- Dong Hyuk Youn
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Harry Jung
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Ngoc Minh Tran
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Korea
| | - Jin Pyeong Jeon
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea.,Department of Neurosurgery, Hallym University College of Medicine, Chuncheon, Korea
| | - Hyojong Yoo
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Korea
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Tran NM, Doan TC, Yoo H. Fabrication of hollow fibrous nanosilica with large pore channels. Chem Commun (Camb) 2022; 58:12431-12434. [DOI: 10.1039/d2cc04680f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Selective self-etching of dendritic fibrous nanosilica (DFNS): fabrication of hollow fibrous nanosilica (HFNS) with high specific surface area and large pore channels, and utilization as a robust support for the growth of gold nanoparticles.
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Affiliation(s)
- Ngoc Minh Tran
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Thang Cao Doan
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Hyojong Yoo
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do, 15588, Republic of Korea
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Lee DN, Gwon K, Nam Y, Lee SJ, Tran NM, Yoo H. Polyurethane Foam Incorporated with Nanosized Copper-Based Metal-Organic Framework: Its Antibacterial Properties and Biocompatibility. Int J Mol Sci 2021; 22:13622. [PMID: 34948419 PMCID: PMC8705956 DOI: 10.3390/ijms222413622] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/05/2021] [Accepted: 12/17/2021] [Indexed: 11/17/2022] Open
Abstract
Polyurethane foams (PUFs) have attracted attention as biomaterials because of their low adhesion to the wound area and suitability as biodegradable or bioactive materials. The composition of the building blocks for PUFs can be controlled with additives, which provide excellent anti-drug resistance and biocompatibility. Herein, nanosized Cu-BTC (copper(II)-benzene-1,3,5-tricarboxylate) was incorporated into a PUF via the crosslinking reaction of castor oil and chitosan with toluene-2,4-diisocyanate, to enhance therapeutic efficiency through the modification of the surface of PUF. The physical and thermal properties of the nanosized Cu-BTC-incorporated PUF (PUF@Cu-BTC), e.g., swelling ratio, phase transition, thermal gravity loss, and cell morphology, were compared with those of the control PUF. The bactericidal activities of PUF@Cu-BTC and control PUF were evaluated against Pseudomonas aeruginosa, Klebsiella pneumoniae, and methicillin-resistant Staphylococcus aureus. PUF@Cu-BTC exhibited selective and significant antibacterial activity toward the tested bacteria and lower cytotoxicity for mouse embryonic fibroblasts compared with the control PUF at a dose of 2 mg mL-1. The Cu(II) ions release test showed that PUF@Cu-BTC was stable in phosphate buffered saline (PBS) for 24 h. The selective bactericidal activity and low cytotoxicity of PUF@Cu-BTC ensure it is a candidate for therapeutic applications for the drug delivery, treatment of skin disease, and wound healing.
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Affiliation(s)
- Do Nam Lee
- Ingenium College of Liberal Arts (Chemistry), Kwangwoon University, Seoul 01897, Korea; (K.G.); (S.J.L.)
| | - Kihak Gwon
- Ingenium College of Liberal Arts (Chemistry), Kwangwoon University, Seoul 01897, Korea; (K.G.); (S.J.L.)
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55902, USA
| | - Yunhee Nam
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan 15588, Korea; (Y.N.); (N.M.T.)
| | - Su Jung Lee
- Ingenium College of Liberal Arts (Chemistry), Kwangwoon University, Seoul 01897, Korea; (K.G.); (S.J.L.)
| | - Ngoc Minh Tran
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan 15588, Korea; (Y.N.); (N.M.T.)
| | - Hyojong Yoo
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan 15588, Korea; (Y.N.); (N.M.T.)
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Hu Y, Picher M, Tran NM, Palluel M, Stoleriu L, Daro N, Mornet S, Enachescu C, Freysz E, Banhart F, Chastanet G. Photo-Thermal Switching of Individual Plasmonically Activated Spin Crossover Nanoparticle Imaged by Ultrafast Transmission Electron Microscopy. Adv Mater 2021; 33:e2105586. [PMID: 34601766 DOI: 10.1002/adma.202105586] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Spin crossover (SCO) is a promising switching phenomenon when implemented in electronic devices as molecules, thin films or nanoparticles. Among the properties modulated along this phenomenon, optically induced mechanical changes are of tremendous importance as they can work as fast light-induced mechanical switches or allow to investigate and control microstructural strains and fatigability. The development of characterization techniques probing nanoscopic behavior with high spatio-temporal resolution allows to trigger and visualize such mechanical changes of individual nanoscopic objects. Here, ultrafast transmission electron microscopy (UTEM) is used to precisely probe the length changes of individual switchable nanoparticles induced thermally by nanosecond laser pulses. This allows revealing of the mechanisms of spin switching, leading to the macroscopic expansion of SCO materials. This study is conducted on individual pure SCO nanoparticles and SCO nanoparticles encapsulating gold nanorods that serve for plasmonic heating under laser pulses. Length changes are compared with time-resolved optical measurements performed on an assembly of these particles.
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Affiliation(s)
- Yaowei Hu
- Institut de Physique et Chimie des Matériaux, UMR 7504 CNRS, Université de Strasbourg, Strasbourg, F-67034, France
| | - Matthieu Picher
- Institut de Physique et Chimie des Matériaux, UMR 7504 CNRS, Université de Strasbourg, Strasbourg, F-67034, France
| | - Ngoc Minh Tran
- Universite de Bordeaux, CNRS, UMR 5798, LOMA, 358 Cours de la libération, Talence cedex, F-33405, France
| | - Marlène Palluel
- Institut de Chimie de la Matière Condensée de Bordeaux, CNRS, Université de Bordeaux, Bordeaux INP, UMR 5026, Pessac, F-33600, France
| | - Laurentiu Stoleriu
- Faculty of Physics, Alexandru Ioan Cuza University, Iasi, 700506, Romania
| | - Nathalie Daro
- Institut de Chimie de la Matière Condensée de Bordeaux, CNRS, Université de Bordeaux, Bordeaux INP, UMR 5026, Pessac, F-33600, France
| | - Stephane Mornet
- Institut de Chimie de la Matière Condensée de Bordeaux, CNRS, Université de Bordeaux, Bordeaux INP, UMR 5026, Pessac, F-33600, France
| | - Cristian Enachescu
- Faculty of Physics, Alexandru Ioan Cuza University, Iasi, 700506, Romania
| | - Eric Freysz
- Universite de Bordeaux, CNRS, UMR 5798, LOMA, 358 Cours de la libération, Talence cedex, F-33405, France
| | - Florian Banhart
- Institut de Physique et Chimie des Matériaux, UMR 7504 CNRS, Université de Strasbourg, Strasbourg, F-67034, France
| | - Guillaume Chastanet
- Institut de Chimie de la Matière Condensée de Bordeaux, CNRS, Université de Bordeaux, Bordeaux INP, UMR 5026, Pessac, F-33600, France
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Tran NM, Kim S, Yoo H. Gold nanodot assembly within a cobalt chalcogenide nanoshell: Promotion of electrocatalytic activity. J Colloid Interface Sci 2021; 605:274-285. [PMID: 34329979 DOI: 10.1016/j.jcis.2021.07.075] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 05/05/2021] [Revised: 07/07/2021] [Accepted: 07/13/2021] [Indexed: 12/28/2022]
Abstract
The assembly of functional nanoparticles within materials with unique architectures can improve the interfacial surfaces, defects, and active sites, which are key factors for the designing novel nanocatalysts. Nano metal-organic framework (NMOF) can be employed to fabricate nanodots-confined nanohybrids for use in electrocatalytic processes. Herein, we report a controlled synthesis of gold nanodot assembly within cobalt chalcogenide nanoshell (dots-in-shell Au/CoxSy nanohybrids). A cobalt-based NMOF (the cobalt-based zeolite imidazole framework, ZIF-67) is used as a versatile sacrificial template to yield dots-in-shell Au/CoxSy nanohybrids. Due to the synergistic effect of the well-dispersed Au nanodots and the thin CoxSy nanoshell, the obtained dots-in-shell Au/CoxSy nanohybrids exhibit enhanced performance for the oxygen evolution reaction (OER) with low overpotential values at a current density of 10 mA cm-2 and a small Tafel slope (343 mV and 62 mV dec-1, respectively).
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Affiliation(s)
- Ngoc Minh Tran
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Suncheol Kim
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Hyojong Yoo
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea.
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Abstract
The catalytic performance and therapeutic effect of nanoparticles varies with shape. Here, we investigated and compared the therapeutic outcomes of ceria nanospheres (Ceria NSs) and ceria nanorods (Ceria NRs) in an in vivo study of mild traumatic brain injury (mTBI). In vivo TBI was induced in a mouse model of open head injury using a stereotaxic impactor. Outcomes including cytoprotective effects, cognitive function, and cerebral edema were investigated after retro-orbital injection of 11.6 mM of ceria nanoparticles. Ceria nanoparticles significantly reduced fluoro-jade B (FJB)-positive cells and terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL)-positive cells, and restored mRNA levels of superoxide dismutase 1 (SOD1) and SOD2. They also decreased the cyclooxygenase-2 (COX-2) expression compared with the untreated control group. Comparing the two nanomaterials, Ceria NRs showed less stable and high-energy (100) and (110) planes, which increased the number of active sites. The Ce3+/Ce4+ molar ratio of Ceria NRs (0.40) was greater than that of Ceria NSs (0.27). Ceria NRs (0.059 ± 0.021) appeared to exhibit better anti-inflammatory effect than Ceria NSs (0.133 ± 0.024), but the effect was statistically insignificant (p = 0.190). Ceria nanoparticles also improved cognitive impairment following mTBI compared with the control group, but the effect did not differ significantly according to the nanoshape. However, Ceria NRs (70.1 ± 0.5%) significantly decreased brain water content compared with Ceria NSs (73.7 ± 0.4%; p = 0.0015), indicating a more effective reduction in brain edema (p = 0.0015). Compared with Ceria NSs, the Ceria NRs are more effective in alleviating cerebral edema following in vivo mTBI.
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Affiliation(s)
- Dong Hyuk Youn
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Republic of Korea
| | - Ngoc Minh Tran
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Bong Jun Kim
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Republic of Korea
| | - Youngmi Kim
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Republic of Korea
| | - Jin Pyeong Jeon
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Republic of Korea.
- Genetic and Research Inc., Chuncheon, Republic of Korea.
- Department of Neurosurgery, Hallym University College of Medicine, 77 Sakju-ro, Chuncheon, 24253, Republic of Korea.
| | - Hyojong Yoo
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do, 15588, Republic of Korea.
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Abstract
Well-ordered combination of defined coordination spheres and multiple types of ligands (heteroleptic) in a given structure can expand the structural complexity and functional diversity of the resulting metallosupramolecules. Such heteroleptic metallosupramolecular architectures are expected to afford advanced utility in a variety of applications. In this concise review article, recent advances in the development of multi-nuclear-cluster-based heteroleptic multiple-stranded (HLMS) metallosupramolecules are summarized and demonstrated. To construct HLMS metallosupramolecules, one type of multitopic ligands can be employed for building up multiple strands, while another type of ligands can be utilized to construct multi-nuclear clusters. Most HLMS metallosupramolecules adopt helical geometries and have high molecular symmetry, which can be key factors for the structural completion. HLMS metallosupramolecules can be used as basic building blocks for the fabrication of higher-order polymeric or discrete assembly architectures with well-defined geometries.
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Affiliation(s)
- Ngoc Minh Tran
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea.
| | - Hyojong Yoo
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea.
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13
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Abstract
Morphologically unique silica nanoparticles can be used as effective templates to prepare silica-metal hybrid nanomaterials, which are highly applicable in a variety of areas. Mesoporous silica nanoparticles, which have high surface areas and an abundance of pores, can be used to synthesize mesoporous silica core-metal shell nanostructures with catalytically active sites. In this work, dendritic fibrous nanosilica (DFNS) with a high surface area is successfully employed as a template to synthesize DFNS/Au hybrid nanomaterials. Au nanodots are initially synthesized through the selective reduction of Au ions on the surface of the DFNS after surface modification to form DFNS/Au dots. A seed-mediated growth method is used to controllably grow Au nanoparticles on the DFNS/Au dots to generate DFNS core-Au nanoparticles shell nanohybrids (DFNS/Au NPs) and DFNS core-Au layer shell nanohybrids (DFNS/Au layers). The catalytic activities of DFNS/Au NPs and DFNS/Au layers in the 4-nitrophenol reduction reaction are compared.
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Affiliation(s)
- Wongyun Byoun
- Department of ChemistryHallym UniversityChuncheon, Gangwon-do24252Republic of Korea
| | - Soeun Jung
- Department of ChemistryHallym UniversityChuncheon, Gangwon-do24252Republic of Korea
| | - Ngoc Minh Tran
- Department of ChemistryHallym UniversityChuncheon, Gangwon-do24252Republic of Korea
| | - Hyojong Yoo
- Department of ChemistryHallym UniversityChuncheon, Gangwon-do24252Republic of Korea
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Olivier M, Aggarwal A, Allen J, Almendras AA, Bajorek ES, Beasley EM, Brady SD, Bushard JM, Bustos VI, Chu A, Chung TR, De Witte A, Denys ME, Dominguez R, Fang NY, Foster BD, Freudenberg RW, Hadley D, Hamilton LR, Jeffrey TJ, Kelly L, Lazzeroni L, Levy MR, Lewis SC, Liu X, Lopez FJ, Louie B, Marquis JP, Martinez RA, Matsuura MK, Misherghi NS, Norton JA, Olshen A, Perkins SM, Perou AJ, Piercy C, Piercy M, Qin F, Reif T, Sheppard K, Shokoohi V, Smick GA, Sun WL, Stewart EA, Fernando J, Tran NM, Trejo T, Vo NT, Yan SC, Zierten DL, Zhao S, Sachidanandam R, Trask BJ, Myers RM, Cox DR. A high-resolution radiation hybrid map of the human genome draft sequence. Science 2001; 291:1298-302. [PMID: 11181994 DOI: 10.1126/science.1057437] [Citation(s) in RCA: 108] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
We have constructed a physical map of the human genome by using a panel of 90 whole-genome radiation hybrids (the TNG panel) in conjunction with 40,322 sequence-tagged sites (STSs) derived from random genomic sequences as well as expressed sequences. Of 36,678 STSs on the TNG radiation hybrid map, only 3604 (9.8%) were absent from the unassembled draft sequence of the human genome. Of 20,030 STSs ordered on the TNG map as well as the assembled human genome draft sequence and the Celera assembled human genome sequence, 36% of the STSs had a discrepant order between the working draft sequence and the Celera sequence. The TNG map order was identical to one of the two sequence orders in 60% of these discrepant cases.
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Affiliation(s)
- M Olivier
- Stanford Human Genome Center, Stanford University School of Medicine, 975 California Avenue, Palo Alto, CA 94304, USA
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