Review of green synthesized TiO2 nanoparticles for diverse applications

Prammitha, R.; Jeice, Ambrose Rejo; Jayakumar, Kumarasamy

doi:10.1016/j.surfin.2023.102912

Cited by 14 publications

(9 citation statements)

References 101 publications

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“…The antibacterial activity of rodlike TiO 2 /lignin nanoparticles has been a significant improvement compared with pure TiO 2 and lignin (Figure S9), which indicated that TiO 2 and lignin have good synergistic antibacterial activity. The reason is that TiO 2 was dispersed by amphiphilic lignin and improved specific surface area, which would increase contact area with bacteria. , Besides, the OD 600 of S. aureus suspensions decreased by 50% when the concentration of TAML reached 125 μg/mL, which shows good antibacterial activity.…”

Section: Resultsmentioning

confidence: 99%

“…The reason is that TiO 2 was dispersed by amphiphilic lignin and improved specific surface area, which would increase contact area with bacteria. 52,53 Besides, the OD 600 of S. aureus suspensions decreased by 50% when the concentration of TAML reached 125 μg/mL, which shows good antibacterial activity. Figure 6f shows that as the concentration of TAML increases from 0 to 125 μg/mL, the OD 600 of E. coli suspensions decreases from 100 to 40%.…”

Section: Prediction and Analysis Of Nanoparticle Emulsifying Activitymentioning

confidence: 93%

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Facile Synthesis of Rodlike TiO₂/Lignin Nanostructures as Multifunctional Emulsifiers for High Internal Phase Emulsions

Zhou,

Liu,

et al. 2023

ACS Appl. Nano Mater.

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The application of high internal phase emulsions (HIPEs) in food, medicine, and cosmetics has been greatly limited due to lack of anti-ultraviolet and anti-oxidant structures. Herein, a series of rodlike TiO2/lignin nanoparticles were prepared by using TiO2 as a hardcore and modified lignin as a coating and dispersion stabilizer. SEM images show that samples have well dispersity and present a rodlike morphology. However, the aspect ratio (AR) values of samples have significant differences due to the presence of different contents of carboxyl and hydroxyl groups in lignin derivatives. Subsequently, their emulsification was predicted by the spreading coefficient and adsorption energy. The results show that the higher AR value of samples, the lower dispersion coefficient and the higher adsorption energy, indicating better emulsification activity. The emulsification test suggests that 0.16 wt % TiO2/arginine-modified lignin with highest AR value could stabilize HIPEs with 90 vol % oil phase volume due to a strong bridging effect. Existing literature shows that the dosage of nanoparticles in HIPEs is the lowest value of other biomass emulsifiers, which shows good biocompatibility. Meanwhile, the oil phase volume of HIPEs in this work is the highest value of other HIPEs prepared with biomass-based particles, which means that these HIPEs would have a higher load capacity for active substances and longer shelf life due to the low water content. The antioxidant experiment shows that TAML could completely clear the •OH, and the scavenging efficiency is 17 times that of pure TiO2. The UV-protection test indicates that the sun protection factor value of TAML reached 149.5, which is the highest value of other lignin-based sunscreen particles. This work provides a method for the preparation of high-performance and multifunctional emulsifiers, which expands the application of lignin and enhances the application potential of HIPEs in medicine, food, cosmetics, and other fields.

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Section: Resultsmentioning

confidence: 99%

Section: Prediction and Analysis Of Nanoparticle Emulsifying Activitymentioning

confidence: 93%

Facile Synthesis of Rodlike TiO₂/Lignin Nanostructures as Multifunctional Emulsifiers for High Internal Phase Emulsions

Zhou,

Liu,

et al. 2023

ACS Appl. Nano Mater.

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“…It is widely used in wastewater treatment, air purification, sterilization, medical technology and the preparation of environmentally friendly material fields. 23…”

Section: Introductionmentioning

confidence: 99%

Anatase TiO_2−x and zwitterionic porphyrin polymer-based nanocomposite for enhanced cancer photodynamic therapy

Li¹,

Wei²,

Fu³

2023

Nanoscale

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“…1 Nanometer-sized components provide a large surface area, as well as a large fraction of surface atoms, which were analyzed due to their distinctive characteristics like optics, electronics, and catalysis. 2,3 Among the other NPs, metal oxide NPs offer substantial potential in biomedical fields that include bio-imaging, sensing, diagnostics, and innovative therapeutics. Various metal oxides have been used, including WO 3 , CuO, MoO 3 , TiO 2 , Ag, Pd, and Mn 2 O 3 .…”

Section: Introductionmentioning

confidence: 99%

“…Various metal oxides have been used, including WO 3 , CuO, MoO 3 , TiO 2 , Ag, Pd, and Mn 2 O 3 . 2–6 Among them, Mn 2 O 3 nanostructures were employed in a variety of applications, including ion-exchange reactions, photocatalysts, molecular adsorption techniques, electrochemical oxidation, and fuel cells, due to their remarkable physiochemical characteristics and high structural flexibility. Mn 2 O 3 is also a credible, relatively inexpensive, and environmentally safe catalyst for numerous energy and environment-related applications.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of orthorhombic Mn₂O₃ nanoparticles; influence of the oxygen vacancies on antimicrobial activity and cationic dye degradation

Rajaram,

Jeice,

Jayakumar

2023

New J. Chem.

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Review of green synthesized TiO2 nanoparticles for diverse applications

Cited by 14 publications

References 101 publications

Facile Synthesis of Rodlike TiO₂/Lignin Nanostructures as Multifunctional Emulsifiers for High Internal Phase Emulsions

Facile Synthesis of Rodlike TiO₂/Lignin Nanostructures as Multifunctional Emulsifiers for High Internal Phase Emulsions

Anatase TiO_2−x and zwitterionic porphyrin polymer-based nanocomposite for enhanced cancer photodynamic therapy

Green synthesis of orthorhombic Mn₂O₃ nanoparticles; influence of the oxygen vacancies on antimicrobial activity and cationic dye degradation

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Review of green synthesized TiO2 nanoparticles for diverse applications

Cited by 14 publications

References 101 publications

Facile Synthesis of Rodlike TiO2/Lignin Nanostructures as Multifunctional Emulsifiers for High Internal Phase Emulsions

Facile Synthesis of Rodlike TiO2/Lignin Nanostructures as Multifunctional Emulsifiers for High Internal Phase Emulsions

Anatase TiO2−x and zwitterionic porphyrin polymer-based nanocomposite for enhanced cancer photodynamic therapy

Green synthesis of orthorhombic Mn2O3 nanoparticles; influence of the oxygen vacancies on antimicrobial activity and cationic dye degradation

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Resources

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Facile Synthesis of Rodlike TiO₂/Lignin Nanostructures as Multifunctional Emulsifiers for High Internal Phase Emulsions

Facile Synthesis of Rodlike TiO₂/Lignin Nanostructures as Multifunctional Emulsifiers for High Internal Phase Emulsions

Anatase TiO_2−x and zwitterionic porphyrin polymer-based nanocomposite for enhanced cancer photodynamic therapy

Green synthesis of orthorhombic Mn₂O₃ nanoparticles; influence of the oxygen vacancies on antimicrobial activity and cationic dye degradation