Hydrogels in wound care
Hydrogel wound dressings aid in the healing process by providing a moist environment and non-adherent pain relief. Discover how hydrogel dressing wound care changes the game for a wide range of acute and chronic wounds, including infected wounds. Its composition of 90% water in a cool, soothing gel effectively regulates fluid exchange.
What Are Hydrogels?
A hydrogel is a natural or synthetic polymer material that can absorb and retain a large amount of liquid. Natural hydrogels, like collagen and alginate, exhibit great variation and are often combined with synthetic hydrogels to create composite polymers that manifest greater stability. Because of their responsive and programmable qualities, hydrogels are widely used in robotics, chemical detectors and biomedical applications. These polymers can take the form of amorphous gels or be impregnated into medical pads or wound fillers.
Hydrogels for Wound Healing
The process of wound healing requires a clean, moist environment and time. If you’re stumped looking for reasons a chronic wound won’t heal, the type of dressing applied may well be the culprit. Traditional wound care, like gauze, pulls moisture from the wound bed and can adhere to the wound, causing undue pain during dressing changes. Hydrogel wound care, on the other hand, donates moisture to the wound, creating a moist environment that promotes autolytic debridement, granulation and epithelialization. Non-adherent hydrogel wound dressings are indicated for:
- Dry or slightly moist partial- and full-thickness wounds
- Abrasions and partial-thickness burns
- Granulating wounds
- Skin damage from radiation
- Wounds with slough or eschar
Do not choose hydrogel for wounds with very high exudate or for full-thickness burns.
How to Choose a Hydrogel Wound Dressing
When it comes to choosing a hydrogel dressing, wound care best practices are an appropriate guide. Select a hydrogel wound dressing that will accommodate the specific character and severity of your patient’s wound while keeping a few cautions in mind:
- All hydrogel wound dressings require a secondary dressing.
- Do not use hydrogel wound care in conjunction with foams, gelling fiber dressings or additional, non-impregnated alginates.
Take care to avoid maceration on periwound tissue and use a plain saline solution to clean the wound between dressing changes. To help reduce the pain of radiation burns, chill hydrogel wound dressing pads in the refrigerator and apply them cold for a soothing experience.
Hydrogel Wound Gels, Pads and Fillers
In addition to hydrogel pads, many trusted brands of hydrogel wound gels and hydrogel fillers are available to patients and caregivers. Triad, SilvaSorb and Anasept are popular options for antimicrobial hydrogel wound care, while MANUKApli Sterile Honey Wound Dressing harnesses the purest medical-grade Manuka honey to act as a 100% natural, antibiotic-free hydrogel for wound healing. Regenecare HA is a hydrogel wound gel that delivers 2% lidocaine to reduce pain and inflammation immediately, in addition to aloe vera and marine collagen to rebuild the skin matrix and restore an effective moisture barrier.
Resources:
https://www.nanowerk.com/spotlight/spotid=58702.php
https://www.frontiersin.org/articles/10.3389/fbioe.2021.718377/full
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Even during his days off, Raul Morales gets spotted by fans. On a recent visit to Universal Studios Hollywood, Morales, owner of Taqueria Vista Hermosa in Los Angeles, was waiting in line when he heard shouting.
“People called out ‘Chef Al Pastor! Chef Al Pastor!’” Morales said, laughing. Morales, who was born in Mexico City, came by the nickname through decades of hard work.
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He’s the third generation of his family to make al pastor tacos, their fresh tortillas filled with richly seasoned pork shaved from a rotating vertical spit.
“My recipe is very special, and very old,” he said.
Yet while Morales’ family recipes go back generations, and similar spit-roasted meats like shawarma and doner have been around for hundreds of years, his tacos represent a kind of cuisine that’s as contemporary and international as it is ancient and traditional. When you thread meat onto a spinning spit to roast it, it turns out, it doesn’t stay in one place for long.
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‘Any place you have a pointy stick or a sword’
Roasting meat on a spit or stick is likely among humans’ most ancient cooking techniques, says food historian Ken Albala, a professor of history at the University of the Pacific.
Feasts of spit-roasted meat appear in the Homeric epics The Iliad and The Odyssey, writes Susan Sherratt, emeritus professor of East Mediterranean archaeology at the University of Sheffield, in the journal Hesperia.
Iron spits that might have been used for roasting appear in the Aegean starting in the 10th century BCE. Such spits have been unearthed in tombs associated with male warriors, Sherratt writes, noting that roasting meat may have been a practice linked to male bonding and masculinity.
“I think the reason that it’s associated with men is partly because of hunting, and the tools, or weapons, that replicated what you would do in war,” Albala said. “When you celebrated a victory, you would go out and sacrifice an animal to the gods, which would basically be like a big barbecue.”
Roasting meat is not as simple as dangling a hunk of meat over the flames. When roasting, meat is not cooked directly on top of the heat source, Albala says, but beside it, which can generate richer flavors.
“Any place you have a pointy stick or a sword, people are going to figure out very quickly … if you cook with it off to the side of the fire, it’s going to taste much more interesting,” Albala said.