25 documents found, page 1 of 3

Bacterial nanocellulose as a versatile scaffold for biomedical applications: sy...

Bacterial nanocellulose (BNC) consists of nanofibres of cellulose randomly entangled during their synthesis by particular bacterium cells during fermentation. Thus, it may be regarded as a unique three-dimensional of pure cellulose that is consolidated during the generation of the fibres by their microbiological factories. The metabolic synthesis and purification processes are approached, underscoring its poten...

Plasma-treated bacterial nanocellulose-lignin composites for neuralgia implants

[Excerpt] This research envisages the use of bacterial nanocellulose (BNC) as a biomaterial for implants to mitigate neuralgias, focusing on the material's inherent limitations. BNC is widely valued for its excellent mechanical properties, ease of modification, and non-anthropogenic degradability [1]. However, its absent electrical conductivity, insufficient antimicrobial activity, and weak interaction with neu...

Active wound dressing of electrospun lignin/cellulose acetate on cotton gauze

Wounds that do not heal within a reasonable time frame can be considered as chronic wounds and it is estimated that 1.51 to 2.21 per 1000 people worldwide are suffering from this condition [1]. Chronic wounds can be characterized as permanently in the inflammatory stage. This stage comprises a continuing influx of neutrophils that release cytotoxic enzymes, reactive oxygen species (ROS), and inflammatory mediat...

Acylase-based coatings on sandblasted polydimethylsiloxane-based materials for ...

Indwelling medical devices, such as urinary catheters, often experience bacterial colonization, forming biofilms that resist antibiotics and the host's immune defenses through quorum sensing (QS), a chemical communication system. This study explores the development of antimicrobial coatings by immobilizing acylase, a quorum-quenching enzyme, on sandblasted polydimethylsiloxane (PDMS) surfaces. PDMS, commonly us...

Gel electrolytes in the development of textile-based power sources

The interest in flexible and wearable electronics is increasing in both scientific research and in multiple industry sectors, such as medicine and healthcare, sports, and fashion. Thus, compatible power sources are needed to develop secondary batteries, fuel cells, supercapacitors, sensors, and dye-sensitized solar cells. Traditional liquid electrolytes pose challenges in the development of textile-based electr...

Curcumin nanoparticles as a pigment of polyamide textiles: Influence of conditi...

The growing demand for eco-friendly and sustainable solutions in textile dyeing has attracted interest in natural dyes, since the synthetic counterparts may be potentially damaging to the environment and require the use of additives to efficiently bind them to the fibers. Curcumin, a natural dye derived from Curcuma longa L. rhizomes, has attracted attention due to its notable biological activity and vibrant ye...

An eco-friendly approach for the separation and reusage of pre-consumer polycot...

One of the most challenging features of textile recycling is the widespread use of mixed fibre blends, which hardens the task of effective separation. A mixture of aqueous sodium hydroxide and a cosolvent was applied to a polycotton preconsumer fabric to promote the chemical separation of polyester (PES) and cotton (CO). The feasibility of reusing the hydrolytic solutions was tested, where dimethyl sulfoxide (D...

Piezoelectric PVDF nanoparticles for enhanced antimicrobial activity via mechan...

The alarming rise of antimicrobial resistance is a public health issue, driven by the excessive and improper use of antibiotics, which are becoming less effective against an increasing number of microorganisms. There is an urgent need to find alternative antimicrobial strategies that can bypass bacterial resistance mechanisms. Using physical stimuli to sensitize bacteria to antimicrobial action is one step towa...

Bacterial nanocellulose nanocomposites for medical applications

Meeting circular economy by producing leather from (sarda sarda) fish

Following the principles of circular economy and waste reduction, recycling fish skin is an interesting and sustainable practice. However, traditional tanning procedures give rise to many sustainability concerns throughout the process. The most serious of these is chemical pollution as traditional tanning frequently uses harmful materials like chromium salts, which can contaminate soil and water supplies and en...