Lysozyme-mediated biomineralization of titanium–tungsten oxide hybrid nanoparticles with high photocatalytic activity

Kim, Jung Kyu; Jang, Ji Ryang; Choi, Noori; Hong, Dahyun; Nam, Chang-Hoon; Yoo, Pil J.; Park, Jae Hyung; Choe, Woo Seok

doi:10.1039/c4cc04820b

Cited by 18 publications

(8 citation statements)

References 25 publications

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“…The three proteins studied were lysozyme, albumin, and hemoglobin. These proteins have been extensively studied for various applications including biomineralization of calcium carbonate 33 , synthesis of nanoparticles 34 , and synthesis of metal oxide nanocomposites and inorganic/organic hybrid materials 35 – 39 . The specifications of the proteins are given in Table 2 .…”

Section: Methodsmentioning

confidence: 99%

Effect of Biomolecules on the Nanostructure and Nanomechanical Property of Calcium-Silicate-Hydrate

Kamali

Ghahremaninezhad

2018

Sci Rep

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Inspired by nature, this paper investigates the effect of biomolecules, such as amino acids and proteins, on the nanostructure and mechanical stiffness of calcium-silicate-hydrate (C-S-H). Amino acids with distinct functional groups, and proteins with different structures and compositions were used in the synthesis of the C-S-H nanocomposite. The atomic structure was examined using X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The morphology was investigated using scanning electron microscopy (SEM) and atomic force microscopy (AFM). AFM nanoindentation was used to evaluate the Young’s modulus of the modified C-S-H. Positively charged, H-bond forming and hydrophobic amino acids were shown to influence the atomic structure of C-S-H. The effect of negatively charged amino acid on atomic structure was more pronounced at higher C/S ratio. A noticeable increase in silicate polymerization of C-S-H modified with proteins at high C/S ratio was observed. The microscopic examination demonstrated a globular morphology for all samples except for C-S-H modified with hemoglobin, which showed a platelet morphology. The Young’s modulus of C-S-H with amino acids and proteins showed a general reduction compared to that of the control C-S-H.

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Section: Methodsmentioning

confidence: 99%

Effect of Biomolecules on the Nanostructure and Nanomechanical Property of Calcium-Silicate-Hydrate

Kamali

Ghahremaninezhad

2018

Sci Rep

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“…As a result of its high stability, low toxicity, optical properties, and photocatalytic potential, TiO 2 NPs have largely been used in catalysis. Several studies claimed that green–mediated TiO 2 NPs may be utilized to photo–catalytically reduce different dyes and compounds [ 56 , 97 , 109 , 110 , 111 , 112 , 113 ]. The sample was generated with 0.001 mol of TTIP precursor and yielded excellent results with lower particle sizes of 64.18 nm, indicating superior performance in photocatalytic activities [ 113 ].…”

Section: Applications Of Biogenic Tio 2 Npsmentioning

confidence: 99%

“…The sample was generated with 0.001 mol of TTIP precursor and yielded excellent results with lower particle sizes of 64.18 nm, indicating superior performance in photocatalytic activities [ 113 ]. The incubation composite displayed improved photocatalytic activity, while also degrading the rhodamine B dye and displaying maximum photocatalytic activity [ 112 ]. When green mediated NPs were compared to chemically synthesized TiO 2 NPs for photocatalytic potential, green mediated NPs outperformed chemically prepared TiO 2 NPs.…”

Section: Applications Of Biogenic Tio 2 Npsmentioning

confidence: 99%

A Review on Green Synthesis of TiO2 NPs: Photocatalysis and Antimicrobial Applications

et al. 2022

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Nanotechnology is a fast-expanding area with several applications in science, engineering, health, pharmacy, and other fields. Several physical/chemical techniques are often used to manufacture nanoparticles (NPs). Simpler, safer, and more cost-effective green synthesis technologies have recently been developed. The synthesis of titanium dioxide nanoparticles (TiO2 NPs) in a green/sustainable manner has gotten a lot of interest in the previous quarter. Bioactive components present in organisms such as plants and bacteria enhance the bio-reduction and capping processes. The biogenic synthesis of TiO2 NPs, as well as the synthesis methods and formation process, are discussed in this review. A range of natural reducing agents including proteins, enzymes, phytochemicals, and others, are involved in the synthesis of TiO2 NPs. The physics of antibacterial and photocatalysis applications were also thoroughly discussed. Finally, we provide an overview of current research and future concerns in biologically mediated TiO2 nanostructures-based feasible platforms for industrial applications.

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“…In 2006, Luckarift et al [ 7 ] demonstrated that lysozyme is able to template the formation of silica and titania nanoparticles from the aqueous solutions of their precursors. From this seminal paper, other applications demonstrating the tunability of this preparation method have appeared in the literature [ 8 ], opening “de facto” a totally new field in nanotechnology (see references [ 9 , 10 , 11 , 12 , 13 , 14 ] and references therein). The potential applications of these composites are many, from cosmetics [ 15 ] to photocatalysis applications [ 6 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

On the Mechanism of Bioinspired Formation of Inorganic Oxides: Structural Evidence of the Electrostatic Nature of the Interaction between a Mononuclear Inorganic Precursor and Lysozyme

et al. 2020

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Nature has evolved several molecular machineries to promote the formation at physiological conditions of inorganic materials, which would otherwise be formed in extreme conditions. The molecular determinants of this process have been established over the last decade, identifying a strong role of electrostatics in the first steps of the precipitation. However, no conclusive, structure-based evidence has been provided so far. In this manuscript, we test the binding of lysozyme with silica and titania potential precursors. In contrast with the absence of structural information about the interaction with the silica precursor, we observe the interaction with a mononuclear titanium(IV) species, which is found to occur in a region rich of positive charges.

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Lysozyme-mediated biomineralization of titanium–tungsten oxide hybrid nanoparticles with high photocatalytic activity

Cited by 18 publications

References 25 publications

Effect of Biomolecules on the Nanostructure and Nanomechanical Property of Calcium-Silicate-Hydrate

Effect of Biomolecules on the Nanostructure and Nanomechanical Property of Calcium-Silicate-Hydrate

A Review on Green Synthesis of TiO2 NPs: Photocatalysis and Antimicrobial Applications

On the Mechanism of Bioinspired Formation of Inorganic Oxides: Structural Evidence of the Electrostatic Nature of the Interaction between a Mononuclear Inorganic Precursor and Lysozyme

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