Electrostatic charge injection for reusing face masks: Mechanisms, performance, and a household alternative DOI Creative Commons
Zehua Peng, Zhiyuan Li, Xingcan Huang

et al.

EcoMat, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 19, 2024

Abstract The COVID‐19 pandemic underscores the effectiveness of face masks in combating respiratory infectious diseases and importance adequate supply. However, widespread use disposable has led to severe environmental pollution. In this study, we propose a two‐step strategy for mask reuse, aimed at both mitigating waste pollution improving availability future epidemic outbreaks. Our involves disinfection corona charging processes, enabling surgical maintain filtration efficiency 88.7% even after five cycles reuse. We highlight crucial role volume charges over surface maintaining performance stability durability, visualize underlying mechanisms using energy band diagrams potential well models. Additionally, introduce simple household solution simultaneously drying charging, making it accessible use. research offers viable promoting sustainability alleviating supply pressures during significant public health crises. image

Language: Английский

Gold Nanorods as Photothermal Antibacterial Materials DOI Creative Commons
Maja Uusitalo, Gustav Eriksson, Mats Hulander

et al.

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 6, 2025

Biomaterial-associated infections (BAIs) are a considerable challenge in modern medicine, limiting the use of many important medical devices and causing severe patient discomfort as well high societal costs. The reduced susceptibility biofilm-forming bacteria to antibiotics, along with increased occurrence antimicrobial resistant pathogens, have incited an interest development antibacterial biomaterial modifications that can combat BAIs. In present work, we developed modification strategy using surface-immobilized photothermal gold nanorods (AuNRs). AuNRs were immobilized on glass titanium substrates well-defined surface coverage 12–14%, leaving most substrate unmodified. activity AuNR-functionalized materials against Staphylococcus aureus Escherichia coli was evaluated after irradiation near-infrared (NIR) laser (808 nm) at different intensities. demonstrated prominent light intensity dependent upon NIR irradiation, caused by plasmonic heating AuNRs, both S. E. coli. contrast, light-induced thermal attributed absorption itself, no significant effect from AuNRs. This study provides valuable insights into role properties developing light, it furthermore demonstrates potential these systems combatting

Language: Английский

Citations

2
Electrospun Polymeric Nanofibers: Current Trends in Synthesis, Surface Modification, and Biomedical Applications DOI

Abdurohman Mengesha Yessuf,

Mohamed Bahri,

Tibebu Shiferaw Kassa

et al.

ACS Applied Bio Materials, Journal Year: 2024, Volume and Issue: 7(7), P. 4231 - 4253

Published: June 10, 2024

Electrospun polymeric nanofibers are essential in various fields for applications because of their unique properties. Their features similar to extracellular matrices, which suggests them healthcare fields, such as antimicrobials, tissue engineering, drug delivery, wound healing, bone regeneration, and biosensors. This review focuses on the synthesis electrospun nanofibers, surface modification, biomedical applications. Nanofibers can be fabricated from both natural synthetic polymers composites. Even though they mimic (physicochemical characteristics) not always capable fulfilling purpose target application. Therefore, need improved via modification techniques. Both needle-based needleless electrospinning thoroughly discussed. Various techniques setups employed each method also reviewed. Furthermore, pre- postspinning approaches including instrument design targeted applications, extensively In this way, remarkable potential highlighted reveal future research directions dynamic field.

Language: Английский

Citations

12
Multifunctional FFP2 Face Mask for White Light Disinfection and Pathogens Detection using Hybrid Nanostructures and Optical Metasurfaces DOI
Federica Zaccagnini, Daniela De Biase,

Francesca Bovieri

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: May 14, 2024

A new generation of an FFP2 (Filtering Face Piece type 2) smart face mask is achieved by integrating broadband hybrid nanomaterials and a self-assembled optical metasurface. The multifunctional shows simultaneously white light-assisted on-demand disinfection properties versatile biosensing capabilities. These are powerful combination light thermoplasmonic responsive nanomaterials, which provide excellent photo-thermal properties, metasurface-based colorimetric biosensors, with very low limit pathogens detection. realized system studied in optical, morphological, spectroscopic, cell viability assay experiments environmental monitoring harmful pathogens, thus highlighting the extraordinary reusability detection innovative mask.

Language: Английский

Citations

10
Nanomaterials for Photothermal Antimicrobial Surfaces DOI Creative Commons
Lavinia Doveri, Yuri Diaz Fernandez, Giacomo Dacarro

et al.

ACS Omega, Journal Year: 2024, Volume and Issue: 9(24), P. 25575 - 25590

Published: June 4, 2024

Microbial infection diseases are a major threat to human health and have become one of the main causes mortality. The search for novel antimicrobial strategies is an important challenge scientific community, considering also constant increase resistance rise new diseases. Among combat microbial infections, photothermal effect seems be most promising. Hyperthermia effective broad spectrum strategy removal infections. all reduce diffusion preparation surfaces primary importance. In many cases, in fact, can diffused through just by touching them, or inoculating microbes internalizable device, such as implant, prosthesis, catheter. this review, we will summarize recent advances antibacterial surfaces.

Language: Английский

Citations

7
NIR‐Light Activable 3D Printed Platform Nanoarchitectured with Electrospun Plasmonic Filaments for On Demand Treatment of Infected Wounds DOI Creative Commons
Daniel Rybak,

Jingtao Du,

Paweł Nakielski

et al.

Advanced Healthcare Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 25, 2024

Bacterial infections can lead to severe complications that adversely affect wound healing. Thus, the development of effective dressings has become a major focus in biomedical field, as current solutions remain insufficient for treating complex, particularly chronic wounds. Designing an optimal environment healing and tissue regeneration is essential. This study aims optimize multi-functional 3D printed hydrogel infected A dexamethasone (DMX)-loaded electrospun mat, incorporated with gold nanorods (AuNRs), structured into short filaments (SFs). The SFs are gelatine methacrylate (GelMA) sodium alginate (SA) scaffold. photo-responsive AuNRs within significantly enhanced DXM release when exposed near-infrared (NIR) light. material exhibits excellent photothermal properties, biocompatibility, antibacterial activity under NIR irradiation, effectively eliminating Staphylococcus aureus Escherichia coli vitro. In vivo, combined light treatment facilitate infectes healing, killing S. bacteria, reduced inflammation, induced vascularization. final materials' shape be adjusted skin defect, anti-inflammatory on-demand, provide antimicrobial protection, accelerate

Language: Английский

Citations

5
Nanoparticles targeting the adenosine pathway for cancer immunotherapy DOI

Kehua Jiang,

Jian Wu, Qing Wang

et al.

Journal of Materials Chemistry B, Journal Year: 2024, Volume and Issue: 12(24), P. 5787 - 5811

Published: Jan. 1, 2024

Outline of this review on adenosine pathway inhibitors for cancer immunotherapy.

Language: Английский

Citations

4
Solar‐to‐NIR Light Activable PHBV/ICG Nanofiber‐Based Face Masks with On‐Demand Combined Photothermal and Photodynamic Antibacterial Properties DOI
Mohammad Ali Haghighat Bayan, Chiara Rinoldi, Alicja Kosik‐Kozioł

et al.

Advanced Materials Technologies, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 5, 2024

Abstract Hierarchical nanostructures fabricate by electrospinning in combination with light‐responsive agents offer promising scenarios for developing novel activable antibacterial interfaces. This study introduces an innovative face mask developed from poly(3‐hydroxybutyrate‐ co ‐3‐hydroxyvalerate) (PHBV) nanofibers integrated indocyanine green (ICG), targeting the urgent need effective antimicrobial protection community health workers. The research focuses on fabricating and characterizing this nanofibrous material, evaluating mask's mechanical chemical properties, investigating its particle filtration, assessing efficacy under photothermal conditions reactive oxygen species (ROS) generation. PHBV/ICG are produced using process, construct's morphology, structure, response investigated. of is tested, substantial bacterial inactivation both near‐infrared (NIR) solar irradiation demonstrated due to nanofibers. material's further analyzed cyclic simulate real‐world conditions, confirming durability consistency. highlights synergistic impact PHBV ICG enhancing activity, presenting a biocompatible environmentally friendly solution. These findings path masks that contribute significantly field materials solve critical public challenges.

Language: Английский

Citations

4
Gold Nanostar‐Decorated Electrospun Nanofibers Enable On‐Demand Drug Delivery DOI Open Access
Mohammad Ali Haghighat Bayan, Alicja Kosik‐Kozioł, Zuzanna J. Krysiak

et al.

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Abstract This study explores the development of a photo‐responsive bicomponent electrospun platform and its drug delivery capabilities. is composed two polymers poly(lactide‐ co ‐glycolide) (PLGA) poly(3‐hydroxybutyrate‐ ‐3‐hydroxyvalerate) (PHBV). Then, decorated with plasmonic gold nanostars (Au NSs) that are capable on‐demand release. Using Rhodamine‐B (RhB) as model drug, release behavior bi‐polymer system compared versus homopolymer fibers. The RhB incorporated in PHBV part platform, which provides more sustained release, both absence presence near‐infrared (NIR) irradiation. Under NIR exposure, thermal imaging reveals notable increase surface temperature, facilitating enhanced Furthermore, demonstrates upon multiple irradiation cycles. offers promising approach for stimuli‐responsive delivery, making it strong candidate therapy applications.

Language: Английский

Citations

0
Exploring Nanomaterials for Enhanced Energy Storage and Conversion DOI
G. Boopathy, V. Srinivasan, Balaji Ganesan

et al.

IGI Global eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 193 - 250

Published: April 18, 2025

Our pressing need to build better energy storage and conversion systems grows as our world develops faster. Energy perform through nanomaterials which have unique physicochemical traits redefine how these technologies work. This chapter evaluates strengthen technology product types fabrication processes for particular solutions. Materials at nanoscale show because of their huge surface area flexible design. Nanomaterials provide multiple solutions storing hydrogen well performing electro catalysis photovoltaics. shows that requires exact engineering along with modeling environmental-friendly nanomaterial manufacturing help turn scientific discoveries into real-world applications next-level

Language: Английский

Citations

0
Negative Voltage Electrospinning for the Production of Highly Efficient PVDF Filters DOI Creative Commons
Carlo Gotti, Monica Torsello, Riccardo Onesti

et al.

Macromolecular Materials and Engineering, Journal Year: 2024, Volume and Issue: 309(11)

Published: June 26, 2024

Abstract In recent years, the demand for filter media has increased dramatically, driven by need to manufacture personal protective equipment and various applications in industrial civil sectors. Nanofiber‐based membranes are proposed as potential alternatives commercial filtration devices. This study presents design implementation of an innovative pre‐industrial electrospinning setup, combining a negatively charged spinneret positively counter‐electrode, capable producing polyvinylidene fluoride (PVDF) nanofibers with average diameter 410 nm electrostatic surface values 3.7 times higher compared conventional process, eliminating further post‐treatment. These properties essential improving mechanical small particles, including infectious droplets. The is also long‐lasting, evidenced tests one year after manufacture. As case‐study, these filters used surgical masks, reporting excellent performance terms bacterial efficiency (BFE) up 99.9%, breathability (29.8±4.5 Pa cm −2 ) when commercially available meltblown polypropylene (PP) face complied stringent European standard (EN14683:2019) type‐II masks. Furthermore, setup allows production capacity 42 000 m 2 per year, suitable large‐scale production.

Language: Английский

Citations

3