Chitosan materials in 2026: overview
Chitosan is a naturally derived polymer made by deacetylating chitin. It can form films, fibers, nanoparticles and water-rich hydrogels, making it useful in applications that need biodegradable or biocompatible materials. Its chemical structure also supports modification and interaction with other compounds. The engineering challenge is to turn those advantages into consistent performance: moisture sensitivity can weaken films, while slow gelation and limited shape stability can constrain 3D printing.
Recent work is combining chitosan with active ingredients and responsive structures. A September 2026 study used oxygen-self-supplying crosslinking to improve drug-release control in 3D-printed scaffolds; March 2026 news described converting chitin-containing waste into high-purity chitosan for films and coatings. Wound care and active packaging remain active directions, alongside delivery systems for medicines and agricultural inputs. The field’s central task is balancing release, mechanical strength, barrier performance and biodegradability for each use.
- 1Performance by design: Recent scaffold work uses oxygen-self-supplying crosslinking to address slow gelation and shape stability, linking printability to control of drug release.
- 2Waste to materials: March 2026 reporting on chitin-containing waste points to a supply route that can connect materials performance with by-product valorization.
- 3Uneven activity: Publications rose 3.3% while patent activity fell 46.8%, indicating continued research output alongside weaker patent activity in the reported window.
Top organizations working on chitosan materials
Ranked by Linknovate activity score · last 24 monthsThe activity score adds up the relevance of every patent, publication, grant and news item linking an organization to chitosan materials. Showing 7 of 3,000 organizations.
| # | Organization | Approach | Signals (24 mo) | Momentum | Why it matters |
|---|---|---|---|---|---|
| 1 | 
Islamic Azad University
Research · Iran |
Fibers and nonwovens | PUB 420 | -38% | Recently, its researchers fabricated liposome-loaded polycaprolactone–chitosan nanofibers with a gold/carbon-nanodot coating for sustained temozolomide release in chemo-photothermal glioma treatment. |
| 2 | 
Cairo University
Research · Egypt |
Nanoparticles and nanocarriers | PUB 264 | +3% | Recently, its researchers developed chitosan nanoparticles carrying Eremina desertorum extract to assess anti-diabetic effects in rats. Other work uses chitosan-based hydrogels and drug-loaded nanoparticles for wound care and pollutant removal. |
| 3 | 
King Saud University
Research · Saudi Arabia |
Films and coatings | PUB 334 · NEWS 1 | -63% | Recently, its researchers developed a biodegradable chitosan-based active food-packaging material incorporating the wheat protein TdGASA2 to improve antimicrobial preservation. Other work examines reinforced chitosan films for fruit storage. |
| 4 | 
Chinese Academy of Sciences CAS
Research · China |
Hydrogels and scaffolds | PUB 343 · NEWS 8 | +4% | Recently, its researchers fabricated dual-crosslinked poly(γ-glutamic acid)/chitosan nanofiber composite films designed to retain mechanical stability when wet. Their work also spans chitosan scaffolds and multifunctional hydrogels. |
| 5 | 
University of Sichuan
Research · China |
Hydrogels and scaffolds | PAT 4 · PUB 324 NEWS 1 |
+6% | Recently, its researchers developed an injectable chitosan hydrogel carrying glioblastoma-derived exosomes for intranasal delivery in an ischemic-stroke model. Other studies develop antimicrobial and mechanically reinforced chitosan hydrogels for wound repair and bone tissue engineering. |
| 6 | 
King Khalid University
Research · Saudi Arabia |
Hydrogels and scaffolds | PUB 217 | +5% | Recently, its researchers developed a chitosan hydrogel containing ferulic-acid polymeric nanosponges for diabetic wound repair. The university also studies chitosan nanoparticles for drug delivery and antimicrobial food packaging. |
| 7 | 
Ocean University of China
Research · China |
Hydrogels and scaffolds | PUB 228 · NEWS 13 | +6% | Its researchers study chitosan hydrogels for wound treatment and controlled drug delivery, including approaches to improve water content and mechanical strength. The university also reviews chitosan-based materials for diabetic-ulcer care. |
| 8 | ··Hidden organizationCompany | Approach | PAT 00 · PUB 00 GRANTS 0 · NEWS 00 | +00% | Available to registered users. |
| 9 | ··Hidden organizationCompany | Approach | PAT 00 · PUB 00 GRANTS 0 · NEWS 00 | +00% | Available to registered users. |
| 10 | ··Hidden organizationCompany | Approach | PAT 00 · PUB 00 GRANTS 0 · NEWS 00 | +00% | Available to registered users. |
Startups to watch and leading research centers
Startups to watch 7 total
- MMexbrainFranceIts work includes a chitosan–DOTAGA hydrogel dressing designed to chelate metals in complex wounds, consistent with its focus on medical metal extraction. A patent also covers medical uses of functionalized chitosan.
- ··Hidden startupCountryAvailable to registered users, with funding and founding year.
- ··Hidden startupCountryAvailable to registered users, with funding and founding year.
Leading research institutions 2,791 total
- Islamic Azad UniversityIranRecently, its researchers fabricated liposome-loaded polycaprolactone–chitosan nanofibers with a gold/carbon-nanodot coating for sustained temozolomide release in chemo-photothermal glioma treatment.
- Cairo UniversityEgyptRecently, its researchers developed chitosan nanoparticles carrying Eremina desertorum extract to assess anti-diabetic effects in rats. Other work uses chitosan-based hydrogels and drug-loaded nanoparticles for wound care and pollutant removal.
- King Saud UniversitySaudi ArabiaRecently, its researchers developed a biodegradable chitosan-based active food-packaging material incorporating the wheat protein TdGASA2 to improve antimicrobial preservation. Other work examines reinforced chitosan films for fruit storage.
- ··Hidden research institutionCountryAvailable to registered users, with their key researchers.
- ··Hidden research institutionCountryAvailable to registered users, with their key researchers.
Where chitosan materials innovation happens
Share of documents with at least one organization from each country.
Open the interactive map with all 3,000 organizationsMain technical approaches
Last 24 months| Approach | What it is | Documents | Leading organizations |
|---|---|---|---|
| Chemical derivatives | Chemical modification tailors chitosan’s solubility and interactions, but added processing can complicate formulation and compatibility. | 2,811 |
University of Sichuan, South China University of Technology, Chinese Academy of Sciences CAS |
| Nanoparticles and nanocarriers | Nanoparticles package active compounds for controlled delivery, but stability, loading and release behavior must be balanced. | 12,269 |
Cairo University, Islamic Azad University, King Saud University |
| Hydrogels and scaffolds | Hydrogels and scaffolds support drug delivery and tissue repair, but hydration must be balanced against mechanical strength and shape retention. | 9,963 |
University of Sichuan, Islamic Azad University, Chinese Academy of Sciences CAS |
| Films and coatings | Films and coatings provide biodegradable barriers or active packaging, but moisture sensitivity can limit barrier performance and shelf life. | 7,115 |
Islamic Azad University, Nanjing University of Science and Technology, Jiangnan University |
| Fibers and nonwovens | Fibers and nonwovens offer porous formats for dressings and delivery, but processing must preserve strength and functional performance. | 2,095 |
Islamic Azad University, Qingdao University, Donghua University |
Emerging trends
Last 12 months vs previous 36 monthsTerms whose frequency in the last 12 months grew the most compared with the previous 36 months.
Funding and investment
Recent funding rounds
Recorded grants total $52,630,553 across 66 grants since 2020. The 8 recorded funding rounds total $5,910,708,459, but include organization-level financing and should not be read as chitosan-specific investment.
Patent landscape
Top patent holders · last 24 monthsRecent developments
Latest news, duplicates removed- Oct 2026A pH-sensitive coating, manganese-driven chemistry, and ultrasound activation give one nanoplatform several ways to detect and attack tumors, but its performance depends on how those functions work together inside the…AZoNano.com - Nanotechnology News Feed
- Sep 2026A new review traces how essential-oil nanoemulsions behave inside biopolymer films across meat, dairy, and produce, while examining the factors that could shape their future use in food packaging. Paper…AZoNano.com - Nanotechnology News Feed
- Aug 2026Chitosan-Based Organic Flocculants Market to Reach 200 Index by 2035 on Electronics Effluent Rules  IndexBoxWater Treatment News
- Aug 2026Chitosan-Based Flocculants Market Growth Driven by Semiconductor ZLD Rules Through 2035 - News and Statistics  IndexBoxWater Treatment News
- Month 20XXHidden developmentAvailable to registered users with alerts enabled.
Frequently asked questions about chitosan materials
What companies are working on chitosan materials?
Patent holders include L'Oréal with 50 patents, Contemporary Amperex Technology Co. Ltd with 42, and Henkel AG with 26. LG Corp and Procter and Gamble each have 25. These counts identify organizations with patent activity in the topic; they do not establish current product availability or the commercial focus of each company.
Which chitosan materials startups are the most promising in 2026?
Mexbrain is a listed startup working on a chitosan–DOTAGA hydrogel dressing designed to chelate metals in complex wounds. Its work also includes a patent on medical uses of functionalized chitosan. The available facts do not rank startups or establish comparative commercial readiness, so Mexbrain is an example rather than a claim of being the leading venture.
Which universities and research centers lead chitosan materials research?
Islamic Azad University leads the listed research organizations with 420 documents in the window, followed by Chinese Academy of Sciences CAS with 351 and King Saud University with 335. University of Sichuan has 329, and Cairo University has 268. Their recent work spans nanofibers, hydrogels, films and drug delivery.
How much funding has chitosan materials received?
Recorded grants total $52,630,553 across 66 grants since 2020. The dataset also lists 8 funding rounds totaling $5,910,708,459, but these include organization-level financing, such as large corporate transactions, and are not necessarily dedicated to chitosan materials. The grant total is the more relevant reported funding figure, though it should still be treated as mapped topic funding.
Who holds the most chitosan materials patents?
L'Oréal holds the largest listed count with 50 patents, followed by Contemporary Amperex Technology Co. Ltd with 42. Henkel AG has 26, while LG Corp and Procter and Gamble each have 25. The French National Center for Scientific Research is also among the leading holders, with 16 patents.
Is chitosan materials patent activity growing?
Patent activity is down 46.8% in the reported growth measure, while publication activity rose 3.3%. The yearly patent series also records 1,116 patents in 2025, compared with 1,821 in 2024. These indicators point to a recent decline in patenting even as research publication volume continued to increase.
What are the latest developments in chitosan materials?
A September 2026 study used calcium peroxide as an oxygen-self-supplying crosslinking strategy in 3D-printed chitosan scaffolds to address slow gelation and shape stability. Other recent work includes liposome-loaded chitosan nanofibers with a gold/carbon-nanodot coating for temozolomide release, and chitosan films functionalized with sorghum extracts for food-packaging applications.
What are the main approaches in chitosan materials and how do they differ?
The main approaches are chemical derivatives; nanoparticles and nanocarriers; hydrogels and scaffolds; films and coatings; and fibers and nonwovens. They differ in form and function: carriers deliver active compounds, hydrogels support tissue repair or release, films provide barriers, and fibers create porous structures. Chemical derivatives adjust material properties, with formulation and performance trade-offs.
Which countries lead chitosan materials?
China leads the listed countries with 42,417 documents, followed by the United States with 16,393 and India with 14,309. Iran has 8,698 and Egypt has 5,402. These figures describe document activity, not manufacturing capacity, market share or the location of all commercial production.
What are the applications of chitosan materials?
Listed applications include biomedical and pharmaceutical uses, food packaging and preservation, water and wastewater treatment, agriculture and crop protection, and environmental remediation and resource recovery. Recent work illustrates this range, from wound-care hydrogels and drug-delivery nanoparticles to edible coatings and chitosan hydrogels studied for antibiotic remediation and dye removal.