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By: Nikat Rajak Mulla, Bhakti Haridas Gavali, Ayesha Khalil Mulani, Vaibhavi Kishor Jadhav, and Kazi Kutubuddin Sayyad Liyakat
1 Students, Department of Electronics and Telecommunication Engineering, Brahmdevdada Mane Institute of Technology, Solapur, Maharashtra, India
2 Students, Department of Electronics and Telecommunication Engineering, Brahmdevdada Mane Institute of Technology, Solapur, Maharashtra, India
3 Students, Department of Electronics and Telecommunication Engineering, Brahmdevdada Mane Institute of Technology, Solapur, Maharashtra, India
4 Students, Department of Electronics and Telecommunication Engineering, Brahmdevdada Mane Institute of Technology, Solapur, Maharashtra, India
5 Professor and Head, Department of Electronics and Telecommunication Engineering,
Brahmdevdada Mane Institute of Technology, Solapur, Maharashtra, India
Sensors are ubiquitous in modern society, playing critical roles in fields ranging from
environmental monitoring and healthcare diagnostics to industrial automation and food safety.
However, traditional sensor technologies often face limitations in response time, sensitivity, and
specificity, hindering their effectiveness in applications demanding rapid and precise detection.
Nanotechnology offers a powerful toolbox to overcome these challenges, enabling the
development of advanced sensors with unprecedented performance. This article explores the
transformative impact of nanotechnology on sensor technology, focusing on how nanomaterials
and nanoscale engineering are driving significant improvements in response times, sensitivity, and specificity. We will delve into the underlying principles that govern these advancements and
highlight examples of nanotechnology-enabled sensors that are pushing the boundaries of
detection capabilities. Traditional sensors can be limited by slow diffusion rates of target
analytes and sluggish transduction mechanisms. Nanomaterials, due to their large surface area
compared to their volume, enable much faster adsorption of analytes and quicker diffusion, making
them highly efficient in various applications. Furthermore, nanoscale electronic components enable
faster signal processing and readout, contributing to overall response time reduction. The
increased surface area and exclusive electronic and optical properties of Nanomaterial’s enable
the detection of even trace quantities of target analytes. Nanoparticles can act as highly efficient
signal amplifiers, converting minute changes in the environment into readily detectable signals.
Similarly, nanoscale resonators can detect minute mass changes associated with analyte binding,
leading to unsurpassed sensitivity. Normal Sensors often suffer from cross-reactivity, leading to
false positives and unreliable results. Nanotechnology offers strategies to enhance sensor
specificity by tailoring the surface chemistry of nanomaterials to selectively bind to target
analytes. This can be achieved through surface functionalization with specific antibodies,
aptamers, or molecularly imprinted polymers.
Keywords: Nanotechnology, Sensors, Sensitivity, specificity, Response time
Citation:
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