Modified Nanocellulose Hydrogels and Applications in Sensing Fields

Area of Science:

• Materials Science
• Polymer Science
• Sensor Technology

Background:

• Growing concerns about global warming and the greenhouse effect drive demand for sustainable sensors.
• Cellulose-based hydrogels are emerging as eco-friendly materials for sensor development due to their plasticity.
• Limitations in mechanical properties and compatibility of unmodified cellulose hydrogels necessitate material modification.

Purpose of the Study:

• To review the modification strategies for cellulose and cellulose-based hydrogels.
• To explore the evolving applications of modified cellulose hydrogels in sensor technology.
• To highlight the potential of these materials in advanced sensing applications.

Main Methods:

• Review of literature on cellulose and cellulose-based hydrogel modification.
• Analysis of research trends in cellulose hydrogel sensor applications from 2017-present.
• Categorization of applications based on sensor type (biosensing, pressure, strain).

Main Results:

• Modification enhances mechanical properties and compatibility of cellulose hydrogels.
• A notable shift in application focus from biomolecule detection to flexible pressure and strain sensing.
• Modified cellulose hydrogels are increasingly utilized in wearable electronic devices.

Conclusions:

• Modified cellulose-based hydrogels possess significant potential for diverse sensing applications.
• The versatility of modified cellulose hydrogels supports their role in developing next-generation sustainable sensors.
• Further research into material modification can unlock new functionalities for cellulose hydrogel sensors.