Nanocomposite egg shell powder with in situ generated silver nanoparticles using inherent collagen as reducing agent

Yorseng, Krittirash; Siengchin, Suchart; Ashok, Basa; Rajulu, A. Varada

doi:10.1016/j.jobab.2020.04.003

Cited by 154 publications

(48 citation statements)

References 27 publications

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“…Studies on the stabilities of compounds have been reported recently. [20][21][22] The fluorescence sensing experiments of cations were done in aqueous solutions of M(NO 3 )x (M x + =Na + , Mg 2 + , K + , Mn 2 + , Co 2 + , Ni 2 + , Cu 2 + , Zn 2 + , Cd 2 + , Pb 2 + , 1 × 10 À 3 mol • L À 1 ). The substrates of 2 mg were added to different nitrates salt solutions, and the tests were carried out after ultrasound for 30 min.…”

Section: Resultsmentioning

confidence: 99%

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Synthesis and structure of a new fluorescent sensor based on Ba(II)‐multicarboxylate for detection of Cu²⁺ ion

Yin

Kan

2021

Zeitschrift anorg allge chemie

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A novel barium(II) coordination polymer (CP), [Ba 3 (L) 2 (H 2 O) 4 ] n 1, has been firstly isolated based on organic ligand 1- [(2'carboxybiphenyl-4-yl)methyl]-2-propylimidazole-4,5-dicarboxylic acid (H 3 L=(HO 2 C) 2 (C 3 N 2 )(C 3 H 7 )CH 2 (C 6 H 4 )(C 6 H 3 )CO 2 H) by hydrothermal technique, and determined by single-crystal X-ray diffractions, elemental analysis, IR, powder X-ray diffractions (PXRD). The Ba(II)-CP 1 belongs to a novel 2-D layer structure created from 1-D serrated chain containing secondary building unit (SBU) [Ba(1)Ba(2)Ba( 3)] via carboxylate group linkage. In 1, the ligand L 3À gives a variety of coordinated styles, nonadentate: μ 2 :(η 1 η 1 ), μ 2 :(η 1 η 1 ), μ 3 :(η 2 η 2 ) and decadentate: μ 1 :(η 1 η 1 ), μ 3 :(η 2 η 2 ), μ 3 :(η 1 η 2 ), μ 3 :(η 1 η 2 ), which is the first reported example.Moreover, the room-temperature fluorescent measurements show that the Ba(II)-CP 1 has specific ability to recognize copper(II) ion in aqueous solution by means of fluorescence quenching effect, corresponding obtained quenching constant K sv = 1.18 × 10 2 M À 1 and the limit of detection LOD = 0.274 μM. Fluorescence titration experiment reveals that there is a good linear relationship between copper ion concentration and fluorescence intensity in the concentration range of 2.0 × 10 À 65 .3 × 10 À 6 mol • L À 1 . The corresponding linear equation: y = 402.41897-0.70486x, and linear correlation coefficient: R 2 = 0.99866 (λ ex = 310 nm and λ em = 412 nm).

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Section: Resultsmentioning

confidence: 99%

“…After the sample of 1 was immersed in water for 24 hours, the test result of PXRD showed that the structure of the compound 1 was not damaged (see Supporting Information Figure S2). Studies on the stabilities of compounds have been reported recently [20–22] …”

Section: Resultsmentioning

confidence: 99%

Synthesis and structure of a new fluorescent sensor based on Ba(II)‐multicarboxylate for detection of Cu²⁺ ion

Yin

Kan

2021

Zeitschrift anorg allge chemie

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“…The dispersibility of the filler in the matrix and the interaction between them are the key parameters, which influence the reinforcing effect significantly. [11][12][13] Certain surface modification of the fillers would enhance the interactions between the filler and matrix. [14] Generally speaking, the chemical bonds interactions formed would be much higher than the physical bonds interactions.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and properties of rigid polyurethane nanocomposite foams with functional isocyanate modified graphene oxide

Tian

Zhang

et al. 2020

Polymer Composites

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The modified graphene oxide (GO) with different specific functional groups were prepared and introduced into rigid polyurethane foam (PUF). It was proved that NCO groups were bonded on the surface of GO, which could participate into the polyurethane foaming reaction and dramatically improve the interactions between the filler and matrix. It was found that the cell morphology and the mechanical properties of the PUFs could be effectively improved by adding an appropriate amount of modified GO. The isocyanate-modified GO could form a stable chemical bond with the matrix, which was more beneficial to improve the mechanical properties. The thermal conductivity slightly increased with the increase of modified GO, however the values were still low enough for thermal insulation applications. Thus, these nanocomposite foams with improved structure and properties would find wide applications in the thermal insulation areas.

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“…As such, extensive studies are developing biocompatible metal and metal oxide NPs by, for example, controlling morphology and surface coating (Długosz, Szostak, Staroń, Pulit‐Prociak, & Banach, 2020). Besides these methods, developing nanocomplexes based on metal and metal oxide NPs is also a possible way to fabricate biocompatible NPs (Ghaemi et al, 2018; Yorseng, Siengchin, Ashok, & Rajulu, 2020). Meanwhile, it is important to develop novel nanocomplexes as they may possess superior properties not owned by NPs based on single composition (Farooq et al, 2020; Kannan, Radhika, Sadasivuni, Reddy, & Raghu, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…As such, direct contact with ZnO NPs is highly possible in real life, but it has been reported that ZnO NPs were toxic to cells in vitro and laboratory animals in vivo (Keerthana & Kumar, 2020; J. Liu et al, 2016). As such, we developed Ag–ZnO nanocomplexes as it has been shown that adding Ag was a possible way to design biocompatible nanocomplexes (Ghaemi et al, 2018; Huang et al, 2019; Yorseng et al, 2020). However, the influence of position of Ag on biocompatibility of nanocomplexes is unknown.…”

Section: Introductionmentioning

confidence: 99%

Comparison of cytotoxicity of Ag/ZnO and Ag@ZnO nanocomplexes to human umbilical vein endothelial cells in vitro

Yan

Zhang

et al. 2020

J of Applied Toxicology

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Novel metal and metal oxide‐based nanocomplexes are being developed due to their superior properties compared with nanoparticles (NPs) based on single composition. In this study, we synthesized Ag‐coated ZnO (Ag/ZnO) and Ag‐doped ZnO (Ag@ZnO) NPs. The cytotoxicity and mechanisms associated with the synthesized NPs were investigated to understand the influence of Ag positions on biocompatibility of the NPs. After exposure to human umbilical vein endothelial cells (HUVECs), Ag/ZnO, Ag@ZnO, and ZnO NPs all significantly induced cytotoxicity, but the cytotoxic effects of Ag/ZnO and Ag@ZnO NPs were more modest in comparison with ZnO NPs. At cytotoxic concentrations, all NPs significantly induced intracellular Zn ions, which suggested a role of excessive Zn ions on cytotoxicity of NPs. All types of NPs significantly induced the expression of endoplasmic reticulum (ER) stress genes including DNA damage‐inducible transcript 3 (DDIT3), X‐box binding protein 1 (XBP‐1), and ER to nucleus signaling 1 (ERN1), but Ag/ZnO and Ag@ZnO NPs were less effective to induce DDIT3 and XBP‐1 expression compared with ZnO NPs. Not surprisingly, only ZnO NPs significantly induced the expression of caspase 3. Combined, the results from this study showed that Ag/ZnO and Ag@ZnO NPs were less cytotoxic and less potent to induce ER stress gene expression compared with ZnO NPs, but there were no significant differences between Ag/ZnO and Ag@ZnO NPs. Our results may provide novel understanding about the biocompatibility of Ag–ZnO nanocomplexes.

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Nanocomposite egg shell powder with in situ generated silver nanoparticles using inherent collagen as reducing agent

Cited by 154 publications

References 27 publications

Synthesis and structure of a new fluorescent sensor based on Ba(II)‐multicarboxylate for detection of Cu²⁺ ion

Synthesis and structure of a new fluorescent sensor based on Ba(II)‐multicarboxylate for detection of Cu²⁺ ion

Fabrication and properties of rigid polyurethane nanocomposite foams with functional isocyanate modified graphene oxide

Comparison of cytotoxicity of Ag/ZnO and Ag@ZnO nanocomplexes to human umbilical vein endothelial cells in vitro

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Nanocomposite egg shell powder with in situ generated silver nanoparticles using inherent collagen as reducing agent

Cited by 154 publications

References 27 publications

Synthesis and structure of a new fluorescent sensor based on Ba(II)‐multicarboxylate for detection of Cu2+ ion

Synthesis and structure of a new fluorescent sensor based on Ba(II)‐multicarboxylate for detection of Cu2+ ion

Fabrication and properties of rigid polyurethane nanocomposite foams with functional isocyanate modified graphene oxide

Comparison of cytotoxicity of Ag/ZnO and Ag@ZnO nanocomplexes to human umbilical vein endothelial cells in vitro

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Synthesis and structure of a new fluorescent sensor based on Ba(II)‐multicarboxylate for detection of Cu²⁺ ion

Synthesis and structure of a new fluorescent sensor based on Ba(II)‐multicarboxylate for detection of Cu²⁺ ion