Illuminating the Biochemical Interaction of Antimicrobial Few-Layer Black Phosphorus with Microbial Cells Using Synchrotron macro-ATR-FTIR

2022 ◽  
Author(s):  
Zoe L Shaw ◽  
Samuel Cheeseman ◽  
Louisa Z.Y. Huang ◽  
Rowan Penman ◽  
Taimur Ahmed ◽  
...  
Keyword(s):  
Alternative Treatment ◽  
Treatment Method ◽  
Black Phosphorus ◽  
Drug Resistant ◽  
Promising Alternative ◽  
Microbial Cells ◽  
Biochemical Interaction ◽  
Low Dimensional ◽  
Low Dimensional Materials

In the fight against drug-resistant pathogenic bacterial and fungal cells, low-dimensional materials are emerging as a promising alternative treatment method. Specifically, few-layer black phosphorus (BP) has demonstrated its effectiveness against...

scholarly journals Cold atmospheric pressure plasma (CAPP) as a new alternative treatment method for onychomycosis caused by Trichophyton verrucosum: in vitro studies

Infection ◽  
2021 ◽  
Author(s):  
Sebastian Gnat ◽  
Dominik Łagowski ◽  
Mariusz Dyląg ◽  
Jessica Zielinski ◽  
Marek Studziński ◽  
...  
Keyword(s):  
Alternative Treatment ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Treatment Method ◽  
In Vitro Studies ◽  
Trichophyton Verrucosum ◽  
Promising Alternative ◽  
Pressure Plasma ◽  
Cold Atmospheric Pressure Plasma

Abstract Purpose Anthropophilic dermatophytes as etiological factors of onychomycoses are more common than zoophilic fungi. In the case of the latter, reverse zoonoses are possible, which poses a threat to the persistence of dermatophytes in the environment. Nevertheless, without treatment, both types of tinea unguium may lead to complete nail plate destruction and secondary mixed infections with fungi and bacteria. One of the zoophilic dermatophytes that cause onychomycosis is Trichophyton verrucosum, whose prevalence has been increasing in recent years. Such infections are usually treated with allylamines and/or azoles, but such a conventional treatment of infections caused by T. verrucosum often fails or is discontinued by patients. Methods Herein, we reveal the results of our in vitro studies related to direct application of cold atmospheric pressure plasma (CAPP) on Trichophyton verrucosum growth, germination and adherence to nail as a new alternative treatment method of such types of dermatomycoses. Results Our in vitro studies showed that, while exposure to CAPP for 10 min delays germination of conidia and clearly impairs the fitness of the fungal structures, 15 min is enough to kill all fungal elements exposed to plasma. Moreover, the SEM images revealed that T. verrucosum cultures exposed to CAPP for 10 and 15 min were not able to invade the nail fragments. Conclusion The results revealed that single exposure to CAPP was able to inhibit T. verrucosum growth and infection capacity. Hence, cold atmospheric pressure plasma should be considered as a promising alternative treatment of onychomycoses.

scholarly journals Antipathogenic properties and applications of low-dimensional materials

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Z. L. Shaw ◽  
Sruthi Kuriakose ◽  
Samuel Cheeseman ◽  
Michael D. Dickey ◽  
Jan Genzer ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Critical Assessment ◽  
Health Concern ◽  
Design Parameters ◽  
Drug Resistant ◽  
Major Health ◽  
Future Design ◽  
Design Considerations ◽  
Low Dimensional ◽  
Low Dimensional Materials

AbstractA major health concern of the 21st century is the rise of multi-drug resistant pathogenic microbial species. Recent technological advancements have led to considerable opportunities for low-dimensional materials (LDMs) as potential next-generation antimicrobials. LDMs have demonstrated antimicrobial behaviour towards a variety of pathogenic bacterial and fungal cells, due to their unique physicochemical properties. This review provides a critical assessment of current LDMs that have exhibited antimicrobial behaviour and their mechanism of action. Future design considerations and constraints in deploying LDMs for antimicrobial applications are discussed. It is envisioned that this review will guide future design parameters for LDM-based antimicrobial applications.

scholarly journals The Highly Uniform Photoresponsivity from Visible to Near IR Light in Sb2Te3 Flakes

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1535
Author(s):  
Shiu-Ming Huang ◽  
Jai-Lung Hung ◽  
Mitch Chou ◽  
Chi-Yang Chen ◽  
Fang-Chen Liu ◽  
...  
Keyword(s):  
Band Structure ◽  
Energy Difference ◽  
Experimental Result ◽  
Light Illumination ◽  
Near Ir ◽  
State Band ◽  
Valence Bands ◽  
Low Dimensional ◽  
Low Dimensional Materials ◽  
Ir Light

Broadband photosensors have been widely studied in various kinds of materials. Experimental results have revealed strong wavelength-dependent photoresponses in all previous reports. This limits the potential application of broadband photosensors. Therefore, finding a wavelength-insensitive photosensor is imperative in this application. Photocurrent measurements were performed in Sb2Te3 flakes at various wavelengths ranging from visible to near IR light. The measured photocurrent change was insensitive to wavelengths from 300 to 1000 nm. The observed wavelength response deviation was lower than that in all previous reports. Our results show that the corresponding energies of these photocurrent peaks are consistent with the energy difference of the density of state peaks between conduction and valence bands. This suggests that the observed photocurrent originates from these band structure peak transitions under light illumination. Contrary to the most common explanation that observed broadband photocurrent carrier is mainly from the surface state in low-dimensional materials, our experimental result suggests that bulk state band structure is the main source of the observed photocurrent and dominates the broadband photocurrent.

scholarly journals Definition of a scoring parameter to identify low-dimensional materials components

2019 ◽  
Vol 3 (3) ◽  
Author(s):  
Peter Mahler Larsen ◽  
Mohnish Pandey ◽  
Mikkel Strange ◽  
Karsten Wedel Jacobsen
Keyword(s):  
Definition Of ◽  
Low Dimensional ◽  
Low Dimensional Materials

scholarly journals Multiple Exciton Generation in Isolated and Interacting Silicon Nanocrystals

Nanoscale ◽  
2021 ◽  
Author(s):  
Ivan Marri ◽  
Stefano Ossicini
Keyword(s):  
Renewable Energy ◽  
Solar Cell ◽  
Silicon Nanocrystals ◽  
Photovoltaic Systems ◽  
Multiple Exciton Generation ◽  
Important Challenge ◽  
Low Dimensional ◽  
Low Dimensional Materials

An important challenge in the field of renewable energy is the development of novel nanostructured solar cell devices which implement low-dimensional materials to overcome the limits of traditional photovoltaic systems....

Reasonably designed 2D WS2 and CdS microwire heterojunction for high performance photoresponse

Nanoscale ◽  
2021 ◽  
Author(s):  
Z.Q. Zheng ◽  
Yuchen Zhou ◽  
Wei Gao ◽  
Li Zhang ◽  
Mengmeng Yang ◽  
...  
Keyword(s):  
High Performance ◽  
Low Dimensional ◽  
Low Dimensional Materials

Heterojunctions based on low-dimensional materials can combine the superiorities of each composition and realize novel properties. Herein, a mixed-dimensional heterojunction comprising multilayer WS2, CdS microwire and few-layer WS2 has been...

Potential SiX (X = N, P, As, Sb, Bi) homo-bilayers for visible-light photocatalysts application

2021 ◽  
Author(s):  
Radha Somaiya ◽  
Deobrat Singh ◽  
Yogesh Kumar Sonvane ◽  
Sanjeev Kumar Gupta ◽  
Rajeev Ahuja
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Photocatalytic Water Splitting ◽  
Low Dimensional ◽  
Low Dimensional Materials

Low dimensional materials possess a challenge to identify a photocatalyst suitable for photocatalytic water splitting application. We have systematically investigated that SiN, SiP, and SiAs homo-bilayers are efficient for water...

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