Paraben,
a conventional preservative used in most personal care
products, falls under the class of endocrine disruptors. From small
living organisms to human beings, everyone is exposed to this endocrine
disruptor either directly or indirectly. Paraben has quite treacherous
effects, causing numerous effects on every living being. Hence, there
is a necessity to spot the presence of this molecule in personal care
products to validate its usage limit and also in water samples since
it acts as a major pollutant by accumulating in many water bodies
as a result of wash-off from many day-to-day products. In this work,
an electrochemical sensor has been designed using a hybrid nanomaterial
as a chemical modifier, i.e., polyhedral oligomeric silsesquioxane
terminated with vinyl groups (POSS-vinyl). This modifier effectively
quantifies the target analyte’s presence avoiding matrix effects
in cosmetic products as well as in simulated water samples with excellent
recoveries. This material is subjected to various physiochemical characterizations,
revealing that the synthesized material is a POSS-vinyl oligomer.
The electrochemical characterization discloses its sensing ability
toward parabens by offering sensitivities of around 0.0103, 0.0048,
and 0.0078 μA/μM and detection limits of about 0.29, 0.36,
and 0.38 μM for methyl, ethyl, and propyl parabens, respectively.