3.3 C
Monday, February 12, 2024

Nanofiber-coated cotton bandages combat an infection and pace therapeutic – NanoApps Medical – Official web site

An interdisciplinary crew of Cornell researchers has recognized an revolutionary solution to harness the antioxidant and antibacterial properties of the botanical compound lawsone to make nanofiber-coated cotton bandages that combat an infection and assist wounds heal extra rapidly.

Their findings, printed within the Worldwide Journal of Pharmaceutics, are particularly essential given the growing prevalence of multidrug-resistant micro organism.

Cotton gauze is likely one of the commonest wound dressings; it’s cheap, available, snug and biocompatible. Nevertheless, it doesn’t promote therapeutic or combat an infection.

“Cotton alone can’t present a solution for these problems—it must be biofunctionalized,” stated lead creator Mohsen Alishahi, a doctoral pupil in fiber science who works within the NanoFibers and NanoTextiles (NanoFibTex) Laboratory within the Faculty of Human Ecology’s Division of Human Centered Design (HCD).

Tamer Uyar, affiliate professor in HCD and the lab’s director, stated considered one of its principal analysis pursuits is growing useful fibers from sustainable supplies and exploring their potential purposes in medical textiles and drug supply methods.

For this work, Alishahi, Uyar and doctoral pupil Mahmoud Aboelkheir used lawsone, a red-orange compound present in henna leaves that has antioxidant, anti-inflammatory and antimicrobial properties, to spice up the efficiency of cotton.

Nanofiber bandages fight infection, speed healing
Tamer Uyar (left), affiliate professor in Human Centered Design and doctoral pupil Mohsen Alishahi work
on growing nanofiber-coated cotton bandages. Credit score: Darcy Rose/Cornell College

Lawsone has been proven to assist wounds heal extra rapidly, nevertheless it’s troublesome to dissolve in an answer and never readily absorbed by the physique. To beat these limitations, the crew used cyclodextrins, a household of pure oligosaccharides produced from starch, to create an inclusion compound, binding the lawsone molecules inside the cyclodextrin.

They then used electrospinning tools to provide a uniform nanofibrous coating from the lawsone-cyclodextrin resolution, capturing it on a nonwoven cotton pad. They discovered that the experimental dressing had considerably increased antioxidant exercise—promising sooner wound therapeutic—in contrast with pure lawsone, due to the elevated solubility of the lawsone by cyclodextrin inclusion, and the excessive surface-to-volume ratio of the nanofibrous system.

The NanoFibTex crew then labored with Craig Altier, professor of inhabitants drugs and diagnostic sciences, and Rimi Chowdhury, senior analysis affiliate, each within the Faculty of Veterinary Drugs, to check the dressing’s organic properties. The experimental dressing had glorious antibacterial efficiency in opposition to gram-negative and gram-positive bacterial species, and successfully eradicated E. coli and staph micro organism in testing.

“The extended overuse of artificial antibiotics in excessive concentrations has contributed to the rise of the lethal epidemic of multidrug-resistant microbes,” Uyar stated. “So using pure and potent anti-bacterials akin to lawsone could function a substitute for artificial anti-bacterials.”

“Wound dressings ought to present an acceptable surroundings for facilitating therapeutic and stopping an infection,” Alishahi stated. “Utilizing completely pure supplies akin to cotton, cyclodextrin and lawsone, this dressing can facilitate each because it has complete antioxidant and anti-bacterial exercise.”

Alishahi stated that the dressing can be significantly useful for continual wounds which are extremely vulnerable to an infection, like diabetic ulcers and burns. The antioxidant and anti inflammatory properties would additionally profit extra routine wounds by lowering the formation of scars.

“I’m acquainted with the problems sufferers face as a result of lack of appropriate dressings,” stated Alishahi, who previously labored in a burn- and wound-healing analysis heart. “My final objective is to develop a dressing that may overcome these difficulties for them. This work opens doorways to creating medical textiles which are good for the surroundings and nice for therapeutic.”

Extra info: Mohsen Alishahi et al, Functionalization of cotton nonwoven with cyclodextrin/lawsone inclusion advanced nanofibrous coating for antibacterial wound dressing, Worldwide Journal of Pharmaceutics (2024). DOI: 10.1016/j.ijpharm.2024.123815

Supplied by Cornell College

Latest news
Related news


Please enter your comment!
Please enter your name here