Sol-gel synthesis of nanostructured ZnO/SrZnO2 with boosted antibacterial and photocatalytic activity

Ahmad, Shakoor; Aadil, Muhammad; Ejaz, Syeda Rabia; Akhtar, Muhammad Usman; Noor, Hadia; Haider, Sajjad; Alsafari, Ibrahim A.; Yasmin, Ghazala

doi:10.1016/j.ceramint.2021.10.020

Cited by 71 publications

(11 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sol-gel is one of the most preferred methods to synthesize nanomaterial due to its simple process. In this, a colloidal absorption of solid is deferred in a fluid stage, and gel is a solid macroparticle submerged in a chemical reaction [ 52 ]. Usually, this method defines a wet-chemical procedure, including a biochemical reaction accomplishing as a precursor for a united structure of diverse materials.…”

Section: Nanomaterials Synthesismentioning

confidence: 99%

Recent Advancements in Nanobiosensors: Current Trends, Challenges, Applications, and Future Scope

Kulkarni¹,

Ayachit

Aminabhavi

2022

Biosensors

View full text Add to dashboard Cite

In recent years, there has been immense advancement in the development of nanobiosensors as these are a fundamental need of the hour that act as a potential candidate integrated with point-of-care-testing for several applications, such as healthcare, the environment, energy harvesting, electronics, and the food industry. Nanomaterials have an important part in efficiently sensing bioreceptors such as cells, enzymes, and antibodies to develop biosensors with high selectivity, peculiarity, and sensibility. It is virtually impossible in science and technology to perform any application without nanomaterials. Nanomaterials are distinguished from fine particles used for numerous applications as a result of being unique in properties such as electrical, thermal, chemical, optical, mechanical, and physical. The combination of nanostructured materials and biosensors is generally known as nanobiosensor technology. These miniaturized nanobiosensors are revolutionizing the healthcare domain for sensing, monitoring, and diagnosing pathogens, viruses, and bacteria. However, the conventional approach is time-consuming, expensive, laborious, and requires sophisticated instruments with skilled operators. Further, automating and integrating is quite a challenging process. Thus, there is a considerable demand for the development of nanobiosensors that can be used along with the POCT module for testing real samples. Additionally, with the advent of nano/biotechnology and the impact on designing portable ultrasensitive devices, it can be stated that it is probably one of the most capable ways of overcoming the aforementioned problems concerning the cumulative requirement for the development of a rapid, economical, and highly sensible device for analyzing applications within biomedical diagnostics, energy harvesting, the environment, food and water, agriculture, and the pharmaceutical industry.

show abstract

Section: Nanomaterials Synthesismentioning

confidence: 99%

Recent Advancements in Nanobiosensors: Current Trends, Challenges, Applications, and Future Scope

Kulkarni¹,

Ayachit

Aminabhavi

2022

Biosensors

View full text Add to dashboard Cite

show abstract

“…The principle is that under UV irradiation, electrons on the valence band can leap to the conduction band to form photogenerated electrons and holes on the valence band, and then the photogenerated electrons and holes react with H 2 O and O 2 adsorbed on the surface of photocatalyst to generate hydroxyl radicals, radicals, and other active groups. These groups have strong oxidation ability, which can remove pollutants and kill bacteria in a short time, and water has enough space to spread on its surface, which improves hydrophilicity. , Therefore, UV photocatalytic treatment provides a new idea to improve the success rate of implants. Commonly used photocatalytic materials include titanium dioxide (TiO 2 ), iron oxide (Fe 2 O 3 ), zinc oxide (ZnO), strontium titanate (SrTiO 3 ), etc .…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effect of Nano Strontium Titanate Coating and Ultraviolet C Photofunctionalization on Osteogenic Performance and Soft Tissue Sealing of poly(ether–ether–ketone)

Chen,

Jinno,

Atsuta

et al. 2024

ACS Biomater. Sci. Eng.

View full text Add to dashboard Cite

This study aimed to evaluate the bioactivity of poly(ether ether ketone) (PEEK) after surface modification by persistent photoconductive strontium titanate (SrTiO3) magnetron sputtering and ultraviolet (UV) C irradiation. According to the different modifications, the PEEK specimens were randomly divided into five groups (n = 38/group): PEEK, Sr100-PEEK, Sr200-PEEK, UV/PEEK, and UV/Sr200-PEEK. Then, the specimens of Sr100-PEEK and Sr200-PEEK groups were, respectively, coated with 100 and 200 nm thickness photocatalyst SrTiO3 on the PEEK surface by magnetron sputtering. Subsequently, UV–C light photofunctionalized the specimens of PEEK and Sr200-PEEK groups to form UV/PEEK and UV/Sr200-PEEK groups. The specimens were characterized by a step meter, scanning electron microscopy (SEM), atomic force microscopy (AFM), energy dispersive X-ray spectroscopy (EDX), and a water contact angle meter. The release test of the Sr ion was performed by inductively coupled plasma mass spectrometry (ICP–MS). In vitro study, osteogenic activity (MC3T3-E1 osteoblast-like cells) and epithelial and connective tissue attachment (gingival epithelial cells GE1 and fibroblasts NIH3T3) were analyzed in five groups. Surface morphology of the specimens was changed after coating, and the Sr content on the Sr-PEEK surface was increased with increasing coating thickness. In addition, the contact angle was increased significantly after magnetron sputtering. After UV–C photofunctionalization, the content of surface elements changed and the contact angle was decreased. The release of Sr ion was sustained, and the final cumulative release amount did not exceed the safety limit. In vitro experiments showed that SrTiO3 improved the cell activity of MC3T3-E1 and UV–C irradiation further enhanced the osteogenic performance of PEEK. Besides, UV–C irradiation also significantly promoted the cell viability, development, and expression of adhesion proteins of GE1 and NIH3T3 on PEEK. The present investigation demonstrated that nano SrTiO3 coating with UV–C photofunctionalization synergistically enhanced the osteogenic properties and soft tissue sealing function of PEEK in vitro.

show abstract

“…Photocatalytic technology has emerged as a promising solution to overcome various environmental challenges owing to its inherent advantages. , Consequently, substantial efforts have been dedicated to developing efficient photocatalysts that can decompose organic pollutants in aqueous environments. , Although substantial progress has been made in this field, the exploration of metal–organic framework (MOF) materials for photocatalytic disinfection is still in its nascent stages.…”

Section: Introductionmentioning

confidence: 99%

Ag Nanoparticle and Ti–MOF Cooperativity for Efficient Inactivation of E. coli in Water

Sun,

Pan,

Wang

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Because of the limitations of traditional chlorine-based bactericidal water treatment, such as the formation of disinfection byproducts (DBPs) and resistance to chlorine, novel approaches and materials are required for effective disinfection of water. This study focuses on the development of a new sterilization material, Ag/NH2-MIL-125(Ti), which was designed to effectively inactivate Escherichia coli in water. The effectiveness of the as-designed material stems from the synergistic interactions between Ag nanoparticles (NPs) and photoactive metal–organic frameworks (MOFs). In this complex material, the MOFs play a critical role in dispersing and isolating the Ag NPs, thus preventing undesirable aggregation during bacterial inactivation. Simultaneously, Ag NPs enhance the photocatalytic performance of the MOFs. Sterilization experiments demonstrate the remarkable rapid E. coli inactivation performance of Ag/NH2-MIL-125(Ti) under illuminated and nonilluminated conditions. Within 25 min of visible light exposure, the as-prepared material achieves a >7-log E. coli reduction. In addition, Ag/NH2-MIL-125(Ti) efficiently decomposes acetic acid, which is the main DBP precursor, under visible light irradiation. Mechanistic investigations revealed that •O2 – and h+ were the primary active substances responsible for the inactivation of E. coli and the decomposition of acetic acid, respectively.

show abstract

Sol-gel synthesis of nanostructured ZnO/SrZnO2 with boosted antibacterial and photocatalytic activity

Cited by 71 publications

References 51 publications

Recent Advancements in Nanobiosensors: Current Trends, Challenges, Applications, and Future Scope

Recent Advancements in Nanobiosensors: Current Trends, Challenges, Applications, and Future Scope

Synergistic Effect of Nano Strontium Titanate Coating and Ultraviolet C Photofunctionalization on Osteogenic Performance and Soft Tissue Sealing of poly(ether–ether–ketone)

Ag Nanoparticle and Ti–MOF Cooperativity for Efficient Inactivation of E. coli in Water

Contact Info

Product

Resources

About