Preparation, characterization and evaluation of the zinc titanate and silver nitrate incorporated wipes for topical chemical and biological decontamination

Sharma, Navneet; Chaudhary, Mamta; Butola, Bhupendra Singh; Jeyabalaji, Joseph Kingston; Pathak, Dharm Pal; Sharma, Rakesh

doi:10.1016/j.msec.2018.10.056

Cited by 9 publications

(4 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They are both difficult to apply for the testing of personal protective equipment. Secondly, the content of nanomaterials (if there is any) is larger by orders of magnitude in comparison to the current work, for example, it was at least 200 mg/m 2 ZnO NPs in [7]; up to 14 g/m 2 Ag and up to 69 g/m 2 ZnTiO 3 NPs in [10]; 11.5 wt.% Ag@TiO2 nanocomposite in [12]; or even cannot be estimated without additional data, as in the case of [9,13].…”

Section: Discussioncontrasting

confidence: 68%

“…The fiber materials which were applied as a base also varied to a great extent: nylon 6 [7]; poly(vinylidene difluoride) [9]; multilayer composite (mostly unspecified, excepting layers of polyethylene terephthalate and of activated carbon) [10]; polyurethane [12]; and activated carbon fibers [13]. Additional dimethylacrylamide-methacrylate copolymer was revealed when investigating an 'enzyme only' material [11].…”

Section: Discussionmentioning

confidence: 99%

“…Universal materials eliminating both chemical and biological hazards seem to be the most promising for application. In this vein, several approaches have been proposed, using: (i) inorganic metal nanoparticles (NPs), e.g., ZnO [7] and other metal oxides [8]; (ii) nanocomposites, e.g., Ag@Al 2 O 3 [9] and Ag@ZnTiO 3 [10]; (iii) enzymatic biocatalysts, e.g., combinations of horseradish peroxidase and glucose oxidase with chemically modified carriers [11]; etc. Such materials can be photoresponsive (i.e., have photocatalytic activity) [12,13], although there are some doubts about the applicability of such methods in general practice.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Combined Modification of Fiber Materials by Enzymes and Metal Nanoparticles for Chemical and Biological Protection

Lyagin

Stepanov

Frolov

et al. 2022

IJMS

View full text Add to dashboard Cite

To obtain fiber materials with pronounced chemical-biological protection, metal (Zn or Ta) nanoparticles were jointly applied with polyelectrolyte complexes of enzymes and polypeptides being their stabilizers. Computer modeling revealed the preferences between certain polyelectrolyte partners for N-acyl-homoserine lactone acylase and hexahistidine-tagged organophosphorus hydrolase (His6-OPH) possessing the quorum quenching (QQ) behavior with bacterial cells. The combinations of metal nanoparticles and enzymes appeared to function better as compared to the combinations of the same QQ-enzymes with antibiotics (polymyxins), making it possible to decrease the applied quantities by orders of magnitude while giving the same effect. The elimination of Gram-positive and Gram-negative bacterial cells from doubly modified fiber materials notably increased (up to 2.9-fold), whereas His6-OPH retained its hydrolytic activity in reaction with organophosphorus compounds (up to 74% of initially applied activity). Materials with the certain enzyme and Zn nanoparticles were more efficient against Bacillus subtilis cells (up to 2.1-fold), and Ta nanoparticles acted preferentially against Escherichia coli (up to 1.5-fold). Some materials were proved to be more suitable for combined modification by metal nanoparticles and His6-OPH complexes as antimicrobial protectants.

show abstract

Section: Discussioncontrasting

confidence: 68%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Combined Modification of Fiber Materials by Enzymes and Metal Nanoparticles for Chemical and Biological Protection

Lyagin

Stepanov

Frolov

et al. 2022

IJMS

View full text Add to dashboard Cite

show abstract

“…After 120 hours, each plate was observed visually for fungal growth. The colonies were counted after the incubation period to observe the reduction of fungal load (17) .…”

Section: Evaluation Of the Antifungal Efficacy Of The Conveyor Beltmentioning

confidence: 99%

Dynamic Mechanism-Based Portable Anti-Microbial Green Decontamination Station

Nair,

Behl,

Yadav

et al. 2023

IJST

View full text Add to dashboard Cite

Objectives:The current research is focused on development and evaluation of antimicrobial efficacy of a portable green conveyor machine. Methods: The conveyor belt station was fabricated and incorporated with UV-C (265nm) lamps and air plasma cluster ion generator. Antimicrobial efficacy was evaluated against bacteria (Escherichia coli and Staphylococcus aureus), fungi (Aspergillus brasiliensis) and bacteriophage (MS2) according to the ISO Standard No. 18593:2018 (Microbiology) at varying speeds. Findings : A universal portable green conveyor-based station(CoVDecon) capable of disinfecting daily use items such as; bags, lunch boxes, shoes, cloth, etc. was developed with applications in public places such as universities, airports, railway stations etc. On performing antibacterial, antifungal and antiviral studies it was observed that the machine at a speed of 3m/sec successfully eliminated 99.39% of gramnegative and gram-positive bacteria, 99% of the fungi and 99% of virus after 3 rounds. Efficacy against bacteria, fungi and virus dropped to 97%, 95% and 97% respectively on increasing the speed to 35m/sec. However, the efficacy might have reduced with an increase in speed due to less time of exposure of the test substance to UV lamps and plasma cluster ions The study indicated that the machine has successfully eliminated the test-microorganisms from contaminated object irrespective of its placement on the belt. Finally, the machine produces no toxic waste, is portable, and cost-efficient. Novelty: The developed conveyor tunnel uses UV and plasma cluster ions provides high efficacy antimicrobial activity by eliminating pathogens from the articles completely, including internal pockets and cavities.

show abstract

Photocatalytic performance of nano-ZnTiO3 decorated with Ag/AgCl nanoparticles for degradation of the organic dyes

Xie

Zhou

et al. 2021

Res Chem Intermed

View full text Add to dashboard Cite

Preparation, characterization and evaluation of the zinc titanate and silver nitrate incorporated wipes for topical chemical and biological decontamination

Cited by 9 publications

References 47 publications

Combined Modification of Fiber Materials by Enzymes and Metal Nanoparticles for Chemical and Biological Protection

Combined Modification of Fiber Materials by Enzymes and Metal Nanoparticles for Chemical and Biological Protection

Dynamic Mechanism-Based Portable Anti-Microbial Green Decontamination Station

Photocatalytic performance of nano-ZnTiO3 decorated with Ag/AgCl nanoparticles for degradation of the organic dyes

Contact Info

Product

Resources

About