Recent advances in the use of TiO<sub>2</sub> nanotube powder in biological, environmental, and energy applications

Abbas, Walaa A.; Abdullah, Ibrahim H.; Ali, Basant A.; Ahmed, Nashaat; Mohamed, Aya M.; Rezk, Marwan Y.; Ismail, Noha; Mohamed, Mona A.; Allam, Nageh K.

doi:10.1039/c9na00339h

Cited by 78 publications

(39 citation statements)

References 150 publications

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“…However, in some previous studies, the addition of TiO 2 to composites reduced bacterial attachment to the polymer surface [52][53][54][55]. But in most other cases it is reported as a good candidate which promotes the biological screening of materials [56][57][58][59][60][61]. The increase in added TiO 2 (2%, 5%, 10%, and 20%) showed increased antibacterial activity against all the microbial strains.…”

Section: Antimicrobial Evaluationmentioning

confidence: 92%

Novel biologically active polyurea derivatives and its TiO₂-doped nanocomposites

Hussein

Alamry

Almehmadi

et al. 2020

Designed Monomers and Polymers

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A new series of polyurea derivatives and its nanocomposites were synthesised by the solution polycondensation method through the interaction between 4(2-aminothiazol-4-ylbenzylidene)-4-(tert-butyl) cyclohexanone and diisocyanate compound in pyridine. The PU 1-3 structure was confirmed using Fourier transform-infrared (FTIR) spectroscopy and characterised by solubility, viscometry, gel permeation chromatography (GPC), and X-ray diffraction (XRD) analysis. In addition, PU 1-3 was evaluated by TGA. Polyurea-TiO 2 nanocomposites were synthesised using the same technique as that of PU 1-3 by adding TiO 2 as a nanofiller. The thermal properties of PU 2 TiO 2 ad were evaluated by TGA. Moreover, the morphological properties of a selected sample were examined by SEM and TEM. In addition, PU 1-3 and PU 2 TiO 2 ad were examined for antimicrobial activity against certain bacteria and fungi. The PU 1-3 showed antibacterial activity against some of the tested bacteria and fungi, as did PU 2 TiO 2 ad , which increased with the increase in TiO 2 content. Furthermore, molecular docking studies were displayed against all PU 1-3 derivatives against two types of proteins. The results show that the increase in the strength of π-H interactions and H-donors contributed to improved binding of PU2 compared to PU1 andPU 3. The docking of 1KZN against the tested polymers suggests an increase in the docking score of PU 2, then PU 1 , and PU 3 , which is in agreement with the antibacterial study.

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Section: Antimicrobial Evaluationmentioning

confidence: 92%

Novel biologically active polyurea derivatives and its TiO₂-doped nanocomposites

Hussein

Alamry

Almehmadi

et al. 2020

Designed Monomers and Polymers

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“…The graphite with particle size of 150 mesh was purchased from NICE. The TiO 2 was prepared as reported 16 through anodization of Ti sheet at 40 V in 0.5 M HClO 4 electrolyte. The MoS 2 were prepared as reported in our previous work 17 .…”

Section: Methodsmentioning

confidence: 99%

Silkworms as a factory of functional wearable energy storage fabrics

Ali

Allam

2019

Sci Rep

Self Cite

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Feeding Bombyx mori larvae with chemically-modified diets affects the structure and properties of the resulted silk. Herein, we provide a road map for the use of silkworms as a factory to produce semiconducting/metallic natural silk that can be used in many technological applications such as supercapacitor electrodes. The silkworms were fed with four different types of chemicals; carbon material (graphite), sulfide (MoS 2 ), oxide (TiO 2 nanotubes), and a mixture of reactive chemicals (KMnO 4 /MnCl 2 ). All the fed materials were successfully integrated into the resulted silk. The capacitive performance of the resulted silk was evaluated as self-standing fabric electrodes as well as on glassy carbon substrates. The self-standing silk and the silk@glassy carbon substrate showed a great enhancement in the capacitive performance over that of the unmodified counterparts. The specific capacitance of the self-standing blank silk negative and positive electrodes was enhanced 4 and 5 folds at 10 mV/s, respectively upon the modification with KMnO 4 /MnCl 2 compared to that of the plain silk electrodes.

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“…A preferred 3D structure with adequate active frameworks to resolve the low ion diffusion coefficient (10 −13 -10 −17 cm 2 /s) [92] and heavy electrical resistance is crucial to realizing the value of super-capacitors based on TiO 2 . The production of titanium dioxide nanotube arrays [95,96] or nanoparticles [97] are therefore a usual process to assisting ion transport and enhancing electrolyte-active surface interaction. Also practical applications of TiO 2 are less because of low volumetric density and less conductivity.…”

Section: Transition Metal Oxides-graphene Compositesmentioning

confidence: 99%

A review on graphene based transition metal oxide composites and its application towards supercapacitor electrodes

Hussain

Ihrar

et al. 2020

SN Appl. Sci.

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Two-dimensional (2D) graphene and its outstanding properties such as, enormous conductivities, mechanical strength, optical and electrical properties brought it one of the most studied materials for the production of energy using renewable resources. The composites of graphene with the same morphological materials such as layered transition metal oxides will be the most aspiring combination to boost their conducting, optoelectronic and mechanical properties. Furthermore, the transition metal chalcogenides materials attracted significant attention due to their atomically thin layers and enormous optical, conducting and electrical properties. The layered materials offer mostly atomically thin 2D plane to the charge carrier with superior conducting properties. The thickness at atomic level, band gap, spin orbit coupling electronic and optoelectronics properties of transition metal dichalcogenides makes them one of the promising entities in energy harvesting technologies. The review suggests some strategies to improve the transition metals-composites stability conducting properties to be tailored in various applications.

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Recent advances in the use of TiO₂ nanotube powder in biological, environmental, and energy applications

Abstract: The use of titanium dioxide nanotubes in the powder form (TNTP) has been a hot topic for the past few decades in many applications.

Cited by 78 publications

References 150 publications

Novel biologically active polyurea derivatives and its TiO₂-doped nanocomposites

Novel biologically active polyurea derivatives and its TiO₂-doped nanocomposites

Silkworms as a factory of functional wearable energy storage fabrics

A review on graphene based transition metal oxide composites and its application towards supercapacitor electrodes

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Recent advances in the use of TiO2 nanotube powder in biological, environmental, and energy applications

Abstract: The use of titanium dioxide nanotubes in the powder form (TNTP) has been a hot topic for the past few decades in many applications.

Cited by 78 publications

References 150 publications

Novel biologically active polyurea derivatives and its TiO2-doped nanocomposites

Novel biologically active polyurea derivatives and its TiO2-doped nanocomposites

Silkworms as a factory of functional wearable energy storage fabrics

A review on graphene based transition metal oxide composites and its application towards supercapacitor electrodes

Contact Info

Product

Resources

About

Recent advances in the use of TiO₂ nanotube powder in biological, environmental, and energy applications

Novel biologically active polyurea derivatives and its TiO₂-doped nanocomposites

Novel biologically active polyurea derivatives and its TiO₂-doped nanocomposites