Nanocellulose Hydrogel Systems for Specialized Applications

Publication ID: 24-11857632_0004_PTD
Published: October 28, 2025
Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Nanocellulose Hydrogel Systems for Specialized Applications,” Published Technical Disclosure No. 24-11857632_0004_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857632_0004_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

The inventive concept adapts the versatile nanocellulose-derived hydrogel drug delivery system for specific, narrow markets or unique operational environments, providing tailored solutions for high-security needs, disaster relief, or extreme weather conditions.

Background and Problem Solved

The original patent disclosed a nanocellulose-derived hydrogel drug delivery system, but it did not address the specific challenges of high-humidity environments, natural disasters, high-security needs, or extreme weather conditions. The new inventive concept addresses these limitations by developing specialized variations and niche solutions.

Detailed Description of the Inventive Concept

The new inventive concept comprises nanocellulose-derived hydrogel matrices adapted for specific applications. For high-humidity environments, the nanocellulose is surface-modified with hydrophobic groups to enhance water resistance. For natural disasters, the hydrogel matrix is designed with enhanced mechanical strength. For high-security needs, the hydrogel matrix is embedded with a tamper-evident material. For extreme weather conditions, the hydrogel matrix is designed to maintain its structural integrity in temperatures ranging from -20°C to 50°C. These adaptations enable sustained release of therapeutic agents in these specialized environments.

Novelty and Inventive Step

The new inventive concept introduces novel adaptations of the original nanocellulose-derived hydrogel drug delivery system, including surface modification for water resistance, enhanced mechanical strength, tamper-evident materials, and temperature-resistant designs. These adaptations provide a non-obvious solution to the specific challenges of high-humidity environments, natural disasters, high-security needs, or extreme weather conditions.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include using different types of nanocellulose, varying the surface modification techniques, or incorporating additional components to enhance the hydrogel matrix's performance. Variations could also include adapting the hydrogel matrix for other specialized applications, such as space exploration or military operations.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in the pharmaceutical, biotechnology, and medical device industries, particularly in the areas of disaster relief, high-security needs, and extreme weather conditions. The targeted markets include governments, NGOs, and private companies operating in these specialized environments.

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

Pharmaceutical drug delivery systems, nanomaterials, and hydrogel technologies, with expertise in material science, polymer chemistry, and biomedical engineering

Person of Ordinary Skill (PHOSITA) Profile

A researcher or engineer with advanced degrees in materials science or bioengineering, familiar with nanocellulose technologies, drug encapsulation techniques, and material modification strategies

Obviousness Rationale

A person skilled in the art would recognize that the source patent's nanocellulose hydrogel drug delivery system provides a foundational framework that can be readily adapted for specialized environmental conditions. The PTD's variations represent predictable engineering modifications using standard surface modification, mechanical reinforcement, and material design techniques commonly employed in drug delivery system development. These adaptations would be considered routine optimization within the existing technological paradigm established by the source patent.

Obvious Combinations & Variations

Source Patent Element
Cellulose-based hydrogel matrix for drug encapsulation with ionic crosslinking
PTD Variation
Surface modification of nanocellulose with hydrophobic groups for high-humidity environments
Obviousness Reasoning
Surface functionalization of polymeric materials is a well-known technique for modifying material properties, and a PHOSITA would recognize hydrophobic group attachment as a predictable method for enhancing water resistance
Source Patent Element
Hydrogel system for therapeutic agent delivery
PTD Variation
Enhanced mechanical strength hydrogel matrix for disaster relief applications
Obviousness Reasoning
Mechanical property enhancement through crosslinking density or polymer blend modifications is a standard approach in materials engineering, representing a straightforward design optimization
Source Patent Element
Ionic crosslinking of nanocellulose hydrogels
PTD Variation
Temperature-resistant hydrogel matrix maintaining structural integrity from -20°C to 50°C
Obviousness Reasoning
Designing materials for specific temperature ranges is a routine engineering task, with multiple known strategies like crosslinking density adjustment and polymer selection to achieve desired thermal stability
Source Patent Element
Drug encapsulation in nanocellulose hydrogel matrix
PTD Variation
Embedding tamper-evident materials within the hydrogel for high-security applications
Obviousness Reasoning
Incorporating additional functional materials into hydrogel matrices is a predictable modification, with numerous precedents in controlled release and security-focused drug delivery systems
35 U.S.C. § 103 Summary: Based on US Patent 11857632's teachings of nanocellulose-derived hydrogel drug delivery systems, the present publication demonstrates that variations involving environmental adaptation, surface modification, and specialized matrix design would be obvious to a person having ordinary skill in the art. The disclosed technical variations represent predictable engineering solutions that extend the foundational concepts of the source patent through routine optimization techniques.

Original Patent Information

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