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Hydrogel dressing is a medical dressing based on hydrogels, three-dimensional hydrophilic structure. [1] The insoluble hydrophilic structures absorb polar wound exudates and allow oxygen diffusion at the wound bed to accelerate healing. [ 2 ]
A hydrogel is a biphasic material, a mixture of porous and permeable solids and at least 10% of water or other interstitial fluid. [1] [2] ...
Self-healing hydrogels are a specialized type of polymer hydrogel.A hydrogel is a macromolecular polymer gel constructed of a network of crosslinked polymer chains. Hydrogels are synthesized from hydrophilic monomers by either chain or step growth, along with a functional crosslinker to promote network formation.
Physical hydrogels contain reversible matrices of hydrogen and non-covalent bonds, while chemical hydrogels are composed of irreversible matrices that are molecularly held together by covalent bonds. Used as another parameter in characterizing gels, electric charge (also referred to as ionic character) describes the ability of the ...
Specifically, hydrogels can be designed to release drugs or other agents in response to physical characteristics of the environment like temperature and pH. [12] The responsiveness of hydrogels is a result of their molecular structure and polymer networks. [12] Hydrogel nanoparticles have a promising future in the drug delivery field.
The main symptom of dysmenorrhea is pain concentrated in the lower abdomen or pelvis. [1] It is also commonly felt in the right or left side of the abdomen. It may radiate to the thighs and lower back. [1] Symptoms often co-occurring with menstrual pain include nausea and vomiting, diarrhea, headache, dizziness, disorientation, fainting and ...
Orlistat (Xenical), the most commonly used medication to treat obesity and sibutramine (Meridia), a medication that was withdrawn due to cardiovascular side effects. Anti-obesity medication or weight loss medications are pharmacological agents that reduce or control excess body fat.
The area is subjected to a variety of loads approaching from abdominal contents, pressure from abdominal/diaphragm muscles, and genital organs, as well as respiratory actions. For the average, reproductive-age woman, the pelvis must withstand loads of 20 N in the supine position, 25-35 N in the standing position, and 90-130 N whilst coughing. [ 6 ]