Hydrogel Patch Delivery
Hydrogel Patch Delivery - Related Videos
08:33
Hydrogel Synthesis
0 Views •
2023
Source: Amber N. Barron, Ashlea Patterson, and Taylor D. Sparks, Department of Materials Science and Engineering, The University of Utah, Salt Lake City, UT Hydrogels are a versatile class of cross-linked polymers produced through relatively simple procedures and with generally inexpensive materials. They can be formed from solution and involve a polymer backbone formed from monomer reagents, an initiator which makes the polymer reactive and a crosslinking species which binds the polymer chains...
07:05
Murine Model of Femoral Artery Wire Injury with Implantation of a Perivascular Drug Delivery Patch
0 Views •
Cited by 8 •
2015
We describe a surgical technique that produces wire injury in the femoral artery of mice to induce neointimal hyperplasia to serve as a model testing system for the perivascular delivery of therapeutic compounds for the inhibition of restenosis.
09:39
Constructing a Collagen Hydrogel for the Delivery of Stem Cell-loaded Chitosan Microspheres
0 Views •
Cited by 6 •
2012
A major hurdle in current stem cell therapies is determining the most effective method to deliver these cells to host tissues. Here, we describe a chitosan-based delivery method that is efficient and simple in approach, while allowing adipose-derived stem cells to maintain their multipotency.
07:25
Collagen Hydrogels
0 Views •
2023
Collagen is another widely used biomaterial that has found popularity in commercial applications, such as photography. Collagen has more recently been used in tissue engineering applications, by creating hydrogels that provide structure to engineered tissue. This video introduces collagen as a biomaterial, demonstrates how it is harvested from porcine skin, and shows how the material is used to create a hydrogel for tissue engineering applications. Finally, several applications of the material...
07:41
Fabrication and Characterization of Microneedle Patches for Loading and Delivery of Exosomes
0 Views •
Cited by 6 •
2024
Exosomes possess significant clinical potential, but their practical application is limited due to easy in vivo clearance and poor stability. Microneedles present a solution by enabling localized delivery by puncturing physiological barriers and dry-state preservation, thereby addressing the limitations of exosome administration and expanding their clinical utility.
FAQs
Crosslinking creates the internal structure that determines how much the hydrogel swells, how firmly it adheres, and how quickly therapeutic molecules move through the hydrated matrix. A more controlled network can regulate diffusion and release, while also influencing contact with the target tissue. These linked properties help researchers tailor treatment duration and local exposure.
Water retained within the three-dimensional polymer network creates a hydrated pathway through which drugs, proteins, or other compounds can diffuse. This environment supports gradual movement rather than relying only on immediate release at the application site. Water retention also helps maintain the moist conditions associated with tissue care, particularly when the patch is applied to wounds.
Adhesion, swelling, and the structure of the crosslinked matrix all affect how closely the patch remains associated with the targeted tissue and how compounds leave it. Local placement can concentrate treatment where it is needed while reducing exposure beyond the application area. Balancing these properties is therefore important when designing therapies intended to limit systemic exposure.
The hydrogel absorbs and retains therapeutic agents such as drugs, proteins, and other compounds within its water-rich network. Once the patch contacts the selected tissue, molecules diffuse through the hydrated matrix at a rate influenced by the crosslinked structure and swelling behavior. This arrangement supports localized administration and can help extend treatment compared with a rapidly released dose.
Applications described for hydrogel patches include skin, wounds, and other accessible tissues. The patch is placed directly on the selected area so that its therapeutic contents remain associated with the treatment site. This approach is particularly relevant when local care and a moist environment are desirable, including wound management and therapies designed for patient-friendly administration.
This approach may be considered when treatment benefits from localized, sustained administration or from maintaining a moist environment at the tissue surface. Medical applications include drug delivery, wound management, and development of therapies intended to reduce dosing frequency. Its value lies in combining direct tissue application with the possibility of limiting broader systemic exposure.