Phosphorylated xanthan gum-Ag(I) complex as antibacterial viscosity enhancer for eye drops formulation

Ferulated Poly(vinyl alcohol) based hydrogels

“…1 B) was found between PVA-FA copolymer and native PVA. Any treatment upon PVA leads to a reduction of its crystallinity, resulting in a corresponding decrease in the intensity of the 1142 cm −1 band, as already observed on other PVA-based hydrogels [ 28 , 31 , 32 ]. The structural analysis of PVA-FA derivatives was studied also by 1 H NMR spectroscopy in DMSO‑ d 6 owing to the good solubility of all the PVA-FA samples in this organic polar solvent.…”

“…FTIR spectra of lyophilized PVA-FA samples were recorded between 4000 cm −1 and 750 cm −1 using a Nicolet Thermo 5700 apparatus (resolution: 2.0 cm −1 ). Baseline and spectra correction were performed using OMNIC correction ATR software [ 28 ].…”

Silver and Silver Nanoparticles for the Potential Treatment of COVID-19: A Review

“…The bio-reducing components of the plant extract polyphenols or proteins and enzymes of the Silver has been extensively used in the medical field even before the advancements in medicine. Use of silver plates for cranioplasty [38,39], catheters [40], sutures [32,38], and silver wire for replacing fractured bones [41], and silver-coated endotracheal tubes [42] is well known. The anti-microbial property of silver is indirectly exploited in household applications and home appliances.…”

Xanthan-Fe3O4 Nanoparticle Composite Hydrogels for Non-Invasive Magnetic Resonance Imaging and Magnetically Assisted Drug Delivery

“…25−29 It has been extensively used also in food, cosmetics, and pharmaceutical industries. 30,31 In the pharmaceutical area, xanthan-based hydrogels have been mainly used as drug delivery formulations for dermatological use, although there are also recent examples of XG being a key component of ocular 32 and orally administered hydrogel formulations. 33,34 In most of them, XG is generally combined with other synthetic and natural polymers, such as galactomannan, lignin, chitosan and cellulose derivatives, 35,36 konjac gum, 37 and polyacrylic acid, 38 among others.…”

“…Its use has been for a long time limited to environmental applications focused on the efficient aqueous removal and recovery of different water contaminants, such as Ni 2+ , Pb 2+ , Cu 2+ , malachite green, and methyl violet, among others. − It has been extensively used also in food, cosmetics, and pharmaceutical industries. , In the pharmaceutical area, xanthan-based hydrogels have been mainly used as drug delivery formulations for dermatological use, although there are also recent examples of XG being a key component of ocular and orally administered hydrogel formulations. , In most of them, XG is generally combined with other synthetic and natural polymers, such as galactomannan, lignin, chitosan and cellulose derivatives, , konjac gum, and polyacrylic acid, among others. A wide variety of both hydrophilic and hydrophobic drugs have been incorporated in XG-based hydrogel matrices, such as curcumin, fluticasone propionate, cyclosporine, carbamazepine, fenoverine, caffeine, indomethacin, ibuprofen, diclofenac sodium, buspirone, theophylline, etc., targeting applications − ,− that range from topical delivery, skin wound healing, and local treatment of oral ulcerative lesions and ophthalmic diseases to gastroretention, epilepsy, and neuropathic pain following oral administration, as well as healing of surgical interventions.…”