Nanocellulose-Derived Hydrogels for Diverse Applications

Publication ID: 24-11857632_0002_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Nanocellulose-Derived Hydrogels for Diverse Applications,” Published Technical Disclosure No. 24-11857632_0002_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857632_0002_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,632.

Summary of the Inventive Concept

This inventive concept leverages the core technology of nanocellulose-derived hydrogels to address unmet needs in various industries, including agriculture, wastewater treatment, 3D printing, fragrances, and cosmetics.

Background and Problem Solved

The original patent disclosed a versatile nanocellulose-derived hydrogel drug delivery system. However, its applications were limited to oral dosing pharmaceuticals. The present inventive concept expands the scope of this technology to tackle distinct challenges in different fields, thereby increasing its overall impact and value.

Detailed Description of the Inventive Concept

The new inventive concept encompasses four primary applications of nanocellulose-derived hydrogels: 1) controlled release of agricultural pesticides, reducing environmental harm; 2) wastewater treatment using nanocellulose-based hydrogel systems, providing a cost-effective and sustainable solution; 3) 3D printing applications, enhancing mechanical strength and durability; and 4) controlled release of fragrances and cosmetic applications, improving skin hydration and elasticity. Each application leverages the unique properties of nanocellulose-derived hydrogels, such as extended release capabilities and improved mechanical strength.

Novelty and Inventive Step

The new claims introduce novel applications of nanocellulose-derived hydrogels, which are non-obvious extensions of the original patent's drug delivery system. The inventive step lies in the recognition of the technology's potential in diverse industries and the adaptation of the core technology to address specific challenges in each field.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of different nanocellulose sources, varying hydrogel compositions, or modified crosslinking agents to tailor the hydrogel's properties for specific applications. Additionally, the inventive concept could be expanded to other industries, such as biomedical devices or food packaging.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential across multiple industries, including agriculture, wastewater treatment, 3D printing, fragrances, and cosmetics. The market for these applications is substantial, with opportunities for partnerships, licensing, and new product development.

CPC Classifications

SectionClassGroup
A A61 A61K47/38
A A61 A61K47/40
A A61 A61L27/20
A A61 A61L27/52
B B82 B82Y5/00
B B82 B82Y30/00
B B82 B82Y40/00

Field of Art

Biomaterials and Nanomaterials Engineering, with expertise in nanocellulose-derived hydrogel systems, drug delivery technologies, and advanced material applications across pharmaceutical, agricultural, and materials science domains

Person of Ordinary Skill (PHOSITA) Profile

A skilled researcher or engineer with advanced degree (MS/PhD) in materials science, chemical engineering, or bioengineering, possessing comprehensive knowledge of nanomaterial synthesis, hydrogel technologies, and cross-industry material adaptations

Obviousness Rationale

A PHOSITA would recognize the fundamental versatility of nanocellulose-derived hydrogel systems as inherently adaptable across multiple technological domains. The source patent's core innovation of controlled release using nanocellulose matrices provides a clear technological foundation that can be systematically extended to alternative applications. The PTD's variations represent predictable engineering adaptations that leverage the known properties of nanocellulose hydrogels, such as controlled release mechanisms, mechanical stability, and matrix-based encapsulation strategies.

Obvious Combinations & Variations

Source Patent Element
Hydrogel matrix with ionic crosslinking for controlled drug release
PTD Variation
Hydrogel matrix for controlled agricultural pesticide release
Obviousness Reasoning
Predictable extension of controlled release technology to agrochemical applications, utilizing identical fundamental hydrogel engineering principles
Source Patent Element
Nanocellulose-based matrix with encapsulation capabilities
PTD Variation
Nanocellulose hydrogel system for wastewater contaminant capture
Obviousness Reasoning
Known material adsorption and entrapment properties of nanocellulose hydrogels make environmental remediation applications an obvious technological adaptation
Source Patent Element
Ionic crosslinking methods for creating stable hydrogel structures
PTD Variation
3D printing applications enhancing mechanical strength using nanocellulose hydrogels
Obviousness Reasoning
Predictable engineering optimization applying known hydrogel structural properties to additive manufacturing technologies
Source Patent Element
Extended release mechanism for pharmaceutical compounds
PTD Variation
Controlled fragrance release in cosmetic applications
Obviousness Reasoning
Direct technological translation of controlled release principles from pharmaceutical to cosmetic domains, representing a standard engineering design choice
35 U.S.C. § 103 Summary: Based on US Patent 11857632's fundamental teachings of nanocellulose-derived hydrogel systems with controlled release capabilities, the present publication demonstrates that the claimed technological variations would have been obvious to a Person Having Ordinary Skill In The Art at the time of invention. The systematic adaptations across agricultural, environmental, manufacturing, and cosmetic domains represent predictable engineering extensions of the foundational hydrogel matrix technology, thereby rendering potential derivative claims non-patentable under standard obviousness analysis.

Original Patent Information

Patent NumberUS 11,857,632
TitleNanocellulose as an embedding matrix and applications thereof
Assignee(s)INNOSENSE LLC