Maro Publications

Hydrogel Applications

Notes

Patent Abstracts

Patent Titles

From 06/10/2015  through 10/8/2013

Maro Encyclopedia

Hydrogels

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Patent Titles

For earlier US Patent titles, go to Sorted Patents /Materials/Hydrogel Applications.

3/3/2015

8,968,785
Surgical compositions

8,968,784
Method for preparing hydro/organo gelators from disaccharide sugars by biocatalysis and their use in enzyme-triggered drug delivery

8,968,783
Hydrogel implants with varying degrees of crosslinking

8,967,799
Method of preparing water extractable silicon-containing biomedical devices

2/17/2015

8,957,145
Hydrogel-forming composition and hydrogel produced from the same

2/10/2015

8,951,989
Hydrogel tissue adhesive having reduced degradation time

8,951,989
Hydrogel tissue adhesive having reduced degradation time

8,951,548
Acrylic hydrogels with pendant cyclodextrins, preparation method thereof and use of same as release systems and contact lens components

2/3/2015

8,944,592
Silicone hydrogel lens with a crosslinked hydrophilic coating

1/27/2015

8,940,337
Transparent bacterial cellulose nanocomposite hydrogels

8,940,331
Hydrogels, methods of making hydrogels, methods of using hydrogels, and methods of isolating, trapping, attracting, and/or killing cancer cells

8,940,318
Hydrogel contact lens for sustained drug release and drug release method using hydrogel contact lens for sustained drug release

8,940,285
Shampoo composition containing a conditioning gel network

8,940,203
Method for preparing composition comprising porous ceramic with thermo-response hydrogel

2/30/2014

8,920,873
Colored ink for pad transfer printing of silicone hydrogel lenses

8,920,831
Lidocaine-containing hydrogel patch

11/25/2014

8,895,073 
Hydrogel implant with superficial pores 

11/11/2014

8,883,185 
Hydrogel implants with varying degrees of crosslinking 

11/04/2014

8,877,227 
Hydrogel nanocomposites for intraocular lens applicatons 

10/21/2014

8,865,789 
Silicone hydrogel contact lenses 

10/14/2014

8,859,705 
Hydrogel tissue adhesive having decreased gelation time and decreased degradation time 

8,858,999 
Method to produce hyaluronic acid functionalized derivatives and formation of hydrogels thereof 

8,858,998 
Thermoresponsive arginine-based hydrogels as biologic carriers 

10/22/2013

6. 8,563,799 
Wound-covering hydrogel material 

5. 8,563,027 
Drug delivery through hydrogel plugs 

10/15/2013

4. 8,557,288 
Hydrogel microparticle formation in aqueous solvent for biomedical applications 

10/8/2013

3. 8,552,071 
Hydrogels absorbing aqueous fluids 

2. 8,551,667 
Hydrogel barrier for fuel cells 

1. 8,551,136 
High swell, long-lived hydrogel sealant 

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Patent Abstracts

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Notes

“Hydrogel is a network of polymer chains that are hydrophilic, sometimes found as a colloidal gel in which water is the dispersion medium. Hydrogels are highly absorbent (they can contain over 99.9% water) natural or synthetic polymers. Hydrogels also possess a degree of flexibility very similar to natural tissue, due to their significant water content. Common uses for hydrogels include:

    currently used as scaffolds in tissue engineering. When used as scaffolds, hydrogels may contain human cells to repair tissue.

    hydrogel-coated wells have been used for cell culture[9]

    environmentally sensitive hydrogels which are also known as 'Smart Gels' or 'Intelligent Gels'. These hydrogels have the ability to sense changes of pH, temperature, or the concentration of metabolite and release their load as result of such a change.

    as sustained-release drug delivery systems.

    provide absorption, desloughing and debriding of necrotic and fibrotic tissue.

    hydrogels that are responsive to specific molecules, such as glucose or antigens, can be used as biosensors, as well as in DDS.

    used in disposable diapers where they absorb urine, or in sanitary napkins

    contact lenses (silicone hydrogels, polyacrylamides)

    EEG and ECG medical electrodes using hydrogels composed of cross-linked polymers (polyethylene oxide, polyAMPS and polyvinylpyrrolidone)

    water gel explosives

    rectal drug delivery and diagnosis

    encapsulation of quantum dots

Other, less common uses include

    breast implants

    now used in glue.

    granules for holding soil moisture in arid areas

    dressings for healing of burn or other hard-to-heal wounds. Wound gels are excellent for helping to create or maintain a moist environment.

    reservoirs in topical drug delivery; particularly ionic drugs, delivered by iontophoresis (see ion exchange resin)

Common ingredients are e.g. polyvinyl alcohol, sodium polyacrylate, acrylate polymers and copolymers with an abundance of hydrophilic groups.

Natural hydrogel materials are being investigated for tissue engineering; these materials include agarose, methylcellulose, hyaluronan, and other naturally derived polymers.”

(Hydrogels, Wikipedia, 11/14/2013)

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Interested!!
Bookmark this page to follow future developments!.
(RDC 7/16/2012)

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Roger D. Corneliussen
Editor
www.maropolymeronline.com

Maro Polymer Links
Tel: 610 363 9920
Fax: 610 363 9921
E-Mail: cornelrd@bee.net  

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Copyright 2013 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen
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* Date of latest addition; date of first entry is 11/14/2013.