Latex-Bridged Inverse Pickering Emulsion for Durable Superhydrophobic Coatings with Dual Antibacterial Activity DOI
Raz Cohen‬‏,

Madina Pirmatova,

Karthik Mani Ananth

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(43), P. 59156 - 59173

Published: Sept. 30, 2024

There is agreement that every colloidal structure produces its own set of unique characteristics, properties, and applications. A phenomenon latex-bridged water in a dimethyl carbonate (DMC) Pickering emulsion stabilized by R202 hydrophobic silica was investigated for ability to act as superhydrophobic coating (SHC) cellulose substrates. First, various compositions were screened their stability droplet size. The final composition then cross-examined cryogenic scanning electron microscopy optical fluorescent verify the structure. drying pattern using labeled samples under microscope on paper substrate. After ∼3 μm dry applied, it exhibited superhydrophobicity (advancing contact angle = 155°) full functionality after 5 min at room temperature (RT). Coated maintained 20 abrasion cycles mechanical integrity 50 s immersion. SHC-coated demonstrated compatibility with standard laser printer, coated printing. Finally, propolis/DMC extract produced analyzed gas chromatography-mass spectroscopy (GC-MS) infused into SHC (PSHC). newly formed PSHC effectively against E. coli biofilm S. aureus planktonic cells reduce viability over 90% 99.99%, respectively.

Language: Английский

Polymers for anti-fouling applications: a review DOI Creative Commons
Waham Ashaier Laftah,

Wan Aizan Wan Abdul Rahman

Environmental Science Advances, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This review analyzes polymer-based antifouling materials, highlighting their efficacy, durability, and environmental benefits, with a focus on key advances future directions in marine technology.

Language: Английский

Citations

1
Current status, challenges and prospects of antifouling materials for oncology applications DOI Creative Commons
Yingfeng Zhang, Congcong Sun

Frontiers in Oncology, Journal Year: 2024, Volume and Issue: 14

Published: May 8, 2024

Targeted therapy has become crucial to modern translational science, offering a remedy conventional drug delivery challenges. Conventional systems encountered challenges related solubility, prolonged release, and inadequate penetration at the target region, such as tumor. Several formulations, liposomes, polymers, dendrimers, have been successful in advancing clinical trials with goal of improving drug’s pharmacokinetics biodistribution. Various stealth coatings, including hydrophilic polymers PEG, chitosan, polyacrylamides, can form protective layer over nanoparticles, preventing aggregation, opsonization, immune system detection. As result, they are classified under Generally Recognized Safe (GRAS) category. Serum, biological sample, complex composition. Non-specific adsorption chemicals onto an electrode lead fouling, impacting sensitivity accuracy focused diagnostics therapies. anti-fouling materials procedures developed minimize impact fouling on specific diagnoses therapies, leading significant advancements recent decades. This study provides detailed analysis current methodologies using surface modifications that leverage antifouling properties peptides, proteins, cell membranes for advanced targeted cancer treatment. In conclusion, we examine obstacles by present technologies possible avenues future development.

Language: Английский

Citations

4
Impact of Nutrient Starvation on Biofilm Formation in Pseudomonas aeruginosa: An Analysis of Growth, Adhesion, and Spatial Distribution DOI Creative Commons
Laura M. De Plano,

Manuela Caratozzolo,

Sabrina Conoci

et al.

Antibiotics, Journal Year: 2024, Volume and Issue: 13(10), P. 987 - 987

Published: Oct. 18, 2024

Objectives: This study investigates the impact of nutrient availability on growth, adhesion, and biofilm formation Pseudomonas aeruginosa ATCC 27853 under static conditions. Methods: Bacterial behaviour was evaluated in nutrient-rich Luria–Bertani (LB) broth nutrient-limited M9 media, specifically lacking carbon (M9-C), nitrogen (M9-N), or phosphorus (M9-P). adhesion analysed microscopically during transition from reversible to irreversible attachment (up 120 min) production/maturation stages 72 h). Results: Results demonstrated that LB media supported bacterial whereas nutrient-starved conditions halted with M9-C M9-N inducing stationary phases M9-P leading cell death. Fractal analysis employed characterise spatial distribution complexity patterns, revealing affected both density architecture, particularly M9-C. In addition, live/dead staining confirmed a higher proportion dead cells over time (at 48 Conclusions: highlights how starvation influences dispersion, offering insights into survival strategies P. resource-limited environments. These findings should contribute better understanding dynamics, implications for managing biofilm-related infections industrial biofouling.

Language: Английский

Citations

4
Single‐Cell Force Spectroscopy Uncovers Root Zone‐ and Bacteria‐Specific Interactions DOI Creative Commons

Yilei Xue,

Mackenzie Eli William Loranger, Yifan Jia

et al.

Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

Abstract Understanding root–bacteria interactions with plant growth‐promoting rhizobacteria (PGPR) is key to developing effective biofertilizers for sustainable agriculture. We performed single‐cell force spectroscopy using the atomic microscope (AFM) study primary attachment of two PGPR, Bacillus velezensis and Pseudomonas defensor , different regions Arabidopsis thaliana roots. Force measurements individual cells uncovered distinct strategies by each strain, involving binding via micrometer‐long polymers from both bacteria root surfaces. Flagella differentially affected PGPR; their removal altered characteristics differently highlighting importance flagella in early colonization. Using silica beads mimic negatively charged bacteria, we demonstrated influence electrostatic forces on interactions. also examined abiotic surfaces varying surface energies, revealing roles hydrophilic hydrophobic initial binding. Our show that differences physicochemical properties roots are responsible variations between PGPR strains regions. Parallel fluorescence corroborated our AFM analysis. Overall, results provide a nanoscale view bacterial roots, offering insights into how beneficial colonize crucial enhancing biofertilizer effectiveness.

Language: Английский

Citations

0
Single‐Cell Force Spectroscopy Uncovers Root Zone‐ and Bacteria‐Specific Interactions DOI Creative Commons

Yilei Xue,

Mackenzie Eli William Loranger, Yifan Jia

et al.

Angewandte Chemie, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

Abstract Understanding root–bacteria interactions with plant growth‐promoting rhizobacteria (PGPR) is key to developing effective biofertilizers for sustainable agriculture. We performed single‐cell force spectroscopy using the atomic microscope (AFM) study primary attachment of two PGPR, Bacillus velezensis and Pseudomonas defensor , different regions Arabidopsis thaliana roots. Force measurements individual cells uncovered distinct strategies by each strain, involving binding via micrometer‐long polymers from both bacteria root surfaces. Flagella differentially affected PGPR; their removal altered characteristics differently highlighting importance flagella in early colonization. Using silica beads mimic negatively charged bacteria, we demonstrated influence electrostatic forces on interactions. also examined abiotic surfaces varying surface energies, revealing roles hydrophilic hydrophobic initial binding. Our show that differences physicochemical properties roots are responsible variations between PGPR strains regions. Parallel fluorescence corroborated our AFM analysis. Overall, results provide a nanoscale view bacterial roots, offering insights into how beneficial colonize crucial enhancing biofertilizer effectiveness.

Language: Английский

Citations

0
Bioinspired oriented calcium phosphate nanocrystal arrays with bactericidal and osteogenic properties DOI Creative Commons
Lorenzo Degli Esposti, Damiano Squitieri, Camilla Fusacchia

et al.

Acta Biomaterialia, Journal Year: 2024, Volume and Issue: 186, P. 470 - 488

Published: Aug. 6, 2024

The global diffusion of antibiotic resistance poses a severe threat to public health. Addressing antibiotic-resistant infections requires innovative approaches, such as antibacterial nanostructured surfaces (ANSs). These surfaces, featuring ordered arrays nanostructures, exhibit the ability kill bacteria upon contact. However, most currently developed ANSs utilize bioinert materials, lacking bioactivity crucial for promoting tissue regeneration, particularly in context bone infections. This study introduces composed bioactive calcium phosphate nanocrystals. Two distinct were created through biomineralization-inspired growth amorphous (ACP) precursors. demonstrated efficient properties against both Gram-negative (P. aeruginosa) and Gram-positive (S. aureus) resistant bacteria, with up 75 % mortality adhered after only 4 h Notably, ANS thinner less oriented nano-needles exhibited superior efficacy attributed simultaneous membrane rupturing oxidative stress induction. Moreover, facilitate proliferation mammalian cells, enhancing adhesion, spreading, reducing stress. displayed also significant towards human mesenchymal stem colonization inducing osteogenic differentiation. Specifically, thicker more heightened effects. In conclusion, introduced this work have potential serve foundation developing graft materials capable eradicate site while concurrently stimulating regeneration. STATEMENT OF SIGNIFICANCE: Nanostructured mechano-bactericidal mechanism shown fighting resistance. these not been fabricated necessary devices that are able stimulate demonstrates feasibility creating growth. dual functionality, serving effective bactericidal agents cells differentiation cells. Consequently, approach holds promise infections, introducing could be utilized development antimicrobial grafts.

Language: Английский

Citations

2
Latex-Bridged Inverse Pickering Emulsion for Durable Superhydrophobic Coatings with Dual Antibacterial Activity DOI
Raz Cohen‬‏,

Madina Pirmatova,

Karthik Mani Ananth

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(43), P. 59156 - 59173

Published: Sept. 30, 2024

There is agreement that every colloidal structure produces its own set of unique characteristics, properties, and applications. A phenomenon latex-bridged water in a dimethyl carbonate (DMC) Pickering emulsion stabilized by R202 hydrophobic silica was investigated for ability to act as superhydrophobic coating (SHC) cellulose substrates. First, various compositions were screened their stability droplet size. The final composition then cross-examined cryogenic scanning electron microscopy optical fluorescent verify the structure. drying pattern using labeled samples under microscope on paper substrate. After ∼3 μm dry applied, it exhibited superhydrophobicity (advancing contact angle = 155°) full functionality after 5 min at room temperature (RT). Coated maintained 20 abrasion cycles mechanical integrity 50 s immersion. SHC-coated demonstrated compatibility with standard laser printer, coated printing. Finally, propolis/DMC extract produced analyzed gas chromatography-mass spectroscopy (GC-MS) infused into SHC (PSHC). newly formed PSHC effectively against E. coli biofilm S. aureus planktonic cells reduce viability over 90% 99.99%, respectively.

Language: Английский

Citations

1