Nanotechnology and nanosensors are broad, interdisciplinary areas
that encompass (bio)chemistry, physics, biology, materials science, electrical
engineering and more. The present course will provide a survey on some of the
fundamental principles behind nanotechnology and nanomaterials and their vital
role in novel sensing properties and applications. The course will discuss interesting interdisciplinary
scientific and engineering knowledge at the nanoscale to understand fundamental
physical differences at the nanosensors. By the end of the course, students
will understand the fabrication, characterization, and manipulation of
nanomaterials, nanosensors, and how they can be exploited for new applications.
Also, students will apply their knowledge of nanotechnology and nanosensors to
a topic of personal interest in this course.
Week 1: Introduction to Nanotechnology:
Definition of nanotechnology; main features of nanomaterials; types of
nanostructures (0D, 1D, and 2D structures); nanocomposites; and main
chemical/physical/electrical/optical properties of nanomaterials.
Week 2: Introduction to Nanotechnology - continue:
Methods for characterizing the nanomaterials: Atomic Force Microscopy (AFM),
Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and
spectroscopy- and spectrometry-based surface analysis techniques. Fabrication
of sensors by bottom-up and top-down approaches; self-assembly of
nanostructures; and examples for nanotechnology application
Week 3: Introduction to Sensors' Science and Technology:
Definition of sensors; main elements of sensors; similarities between living
organisms and artificial sensors; working mechanism of physical sensation
(seeing, hearing, and feeling) and chemical sensation (smelling and tasting); the
parameters used for characterizing the performance of sensors: accuracy,
precision, sensitivity, detection limit, dynamic range, selectivity, linearity,
resolution, response time, hysteresis, and life cycle.
Week 4: Metal nanoparticle-based Sensors:
Definition of nanoparticle; features of nanoparticles; and production of
nanoparticles by physical approach (laser ablation) and chemical approaches
(Brust method, seed-mediated growth, etc.).
Week 5: Quantum Dot Sensors: Definition of
quantum dot; fabrication techniques of quantum dots; Macroscopic and
microscopic photoluminescence measurements; applications of quantum dots as
multimodal contrast agents in bioimaging; and application of quantum dots as
Week 6:Nanowire-based Sensors: Definition of nanowires; features
of nanowires; fabrication of individual nanowire by top-down approaches and
bottom-up approaches; and fabrication of nanowire arrays (fluidic channel,
blown bubble film, contact printing, spray coating, etc.).
Week 7:Carbon Nanotubes-based Sensors: Definition of carbon
nanotube; features of carbon nanotubes; synthesis of carbon nanotubes;
fabrication and working principles of sensors based on individual carbon
nanotube; fabrication and working principles of sensors based on random array
of carbon nanotubes.
Week 8: Sensors Based on Nanostructures of Metal Oxide: Synthesis
of metal oxide structures by dry and wet methods; types of metal oxide gas
sensors (0D, 1D, and 2D); defect chemistry of the metal oxide sensors; sensing
mechanism of metal-oxide gas sensors; and porous metal-oxide structures for
improved sensing applications.
Week 9: Mass-Sensitive Nanosensors: Working
principle of sensors based on polymeric nanostructures; sensing mechanism and
applications of nanomaterial-based of chemiresistors and field effect
transistors of (semi-)conductive polymers, w/o inorganic materials.
Week 10: Arrays of Nanomaterial-based Sensors: A
representative example for the imitation of human senses by means of nanotechnology
and nanosensors: electronic skin based on nanotechnology.