Switch-type photoelectrochemical aptasensor for microplastics and nanoplastics detection based on two-dimensional organic−inorganic heterojunction

Key Points

• Microplastics and nanoplastics detection was achieved using a novel photoelectrochemical aptasensor, demonstrating high sensitivity.
• The aptasensor combines organic and inorganic components in a heterojunction, enhancing detection capabilities for contaminants.
• Careful experimental validation confirmed the effectiveness of the aptasensor across varying concentrations of microplastics and nanoplastics.
• This approach may enable improved detection methods for environmental pollutants, underscoring the need for innovative monitoring techniques.