Nanocellulose-based Sensors for Environmental Monitoring and Food Safety

Publication ID: 24-11857632_0007_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Nanocellulose-based Sensors for Environmental Monitoring and Food Safety,” Published Technical Disclosure No. 24-11857632_0007_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857632_0007_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 present inventive concept leverages the core technology of nanocellulose-derived hydrogels to develop novel sensors for detecting environmental pollutants, monitoring water and soil quality, and ensuring food safety.

Background and Problem Solved

The original patent addressed the need for extended release in oral dosing pharmaceuticals. However, there is a growing concern about environmental pollution, food safety, and the need for real-time monitoring. The present inventive concept tackles these challenges by adapting the nanocellulose technology to create sensors capable of detecting heavy metal ions, volatile organic compounds, and monitoring pH, temperature, and moisture levels.

Detailed Description of the Inventive Concept

The inventive concept comprises nanocellulose-derived hydrogel sensors functionalized with metal-binding peptides, toxin-binding antibodies, or microorganisms. These sensors can detect changes in environmental parameters and transmit data to remote monitoring stations. The nanocellulose matrix can be tailored to release nutrients, monitor soil moisture, and detect food spoilage. The system can be deployed in various settings, including waterbodies, soil, and food packaging.

Novelty and Inventive Step

The new claims introduce a paradigm shift by applying the nanocellulose technology to environmental monitoring and food safety, which is a significant departure from the original patent's focus on pharmaceuticals. The inventive concept's novelty lies in the adaptation of the core technology to create sensors with enhanced sensitivity and specificity.

Alternative Embodiments and Variations

Alternative embodiments may include using different types of nanocellulose, modifying the functionalization methods, or integrating the sensors with existing monitoring systems. Variations may include using the nanocellulose sensors for detecting other types of pollutants, such as pesticides or industrial chemicals.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in the environmental monitoring, food safety, and agriculture industries. The market demand for real-time monitoring solutions is growing, and the nanocellulose-based sensors offer a cost-effective and efficient solution for detecting environmental pollutants and ensuring food safety.

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

Nanomaterials, biotechnology, and sensor systems with a focus on nanocellulose-based functional materials for environmental and biomedical applications

Person of Ordinary Skill (PHOSITA) Profile

A skilled practitioner with advanced degrees in materials science, biotechnology, or chemical engineering, with expertise in nanomaterial functionalization, hydrogel design, and sensor technology

Obviousness Rationale

A PHOSITA would recognize the inherent versatility of nanocellulose hydrogel systems as a platform technology that can be readily adapted across different application domains. The core principles of nanocellulose matrix design, ionic crosslinking, and functional modification demonstrated in the source patent provide a clear technological foundation for extending the technology into environmental sensing and monitoring applications. The PTD represents a predictable variation that applies known nanocellulose hydrogel principles to a new but closely related technical field.

Obvious Combinations & Variations

Source Patent Element
Nanocellulose hydrogel matrix with ionic crosslinking capabilities
PTD Variation
Functionalization of nanocellulose matrix with metal-binding peptides and toxin-detecting antibodies
Obviousness Reasoning
Known techniques for protein/peptide immobilization in hydrogel matrices, predictable extension of existing crosslinking and functionalization methods
Source Patent Element
Drug encapsulation and controlled release in hydrogel system
PTD Variation
Environmental parameter detection and data transmission capabilities
Obviousness Reasoning
Logical progression from controlled molecular release to sensor-based detection, utilizing inherent material properties of nanocellulose matrix
Source Patent Element
Use of metal ions for hydrogel crosslinking
PTD Variation
Metal ion detection as a sensing mechanism in environmental monitoring
Obviousness Reasoning
Leveraging existing understanding of metal-nanocellulose interactions to create sensitive detection platforms
Source Patent Element
Hydrogel matrix capable of molecular encapsulation
PTD Variation
Embedding microorganisms and nutrient release mechanisms in soil monitoring sensors
Obviousness Reasoning
Predictable application of encapsulation techniques to create multifunctional sensing systems with known biological integration strategies
Source Patent Element
Cyclodextrin use for molecular interactions in original hydrogel system
PTD Variation
Antibody and peptide functionalization for specific molecular detection
Obviousness Reasoning
Established principles of molecular recognition and binding in hydrogel systems, representing a straightforward technological extension
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857632 and the published technical disclosure, a person having ordinary skill in the art would find the claimed environmental sensing and monitoring systems using nanocellulose-derived hydrogels to be obvious variations of the prior art. The disclosed innovations represent predictable applications of known nanocellulose hydrogel design principles, utilizing standard functionalization techniques and sensor integration strategies that would be apparent to a skilled practitioner in the field.

Original Patent Information

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