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What is the main advantage of using nanomaterials in electrochemical sensors for medical diagnostics?
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3. They enhance sensitivity and surface area for detection |
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It was mention that electrochemical sensors exhibit high surface area-to-volume ratios.
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Nanotechnology plays a crucial role in modern medical diagnostics
by enhancing the performance of electrochemical sensors. The unique
properties of nanomaterials improve sensitivity, specificity, response
time, and portability, making diagnostic tools more efficient and
accessible.
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| 2 |
Which of the following nanomaterials is frequently mentioned as enhancing sensor conductivity?
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2. Gold nanoparticles |
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Conductometric Sensors Measuring changes in electrical conductivity of the solution due to the presence of the analyte
Detection of changes in ionic concentrations
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Gold nanoparticles can enhance the electrochemical signal by providing a large surface area for the immobilization of biomolecules, leading to higher sensitivity in detecting low-abundance biomarkers.
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| 3 |
Why are carbon-based nanomaterials such as carbon nanotubes (CNTs) useful in electrochemical sensors?
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3. They improve electron transfer and mechanical strength |
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have a single layer of graphene rolled into a tube and
exhibit excellent electrical conductivity and high surface area, making
them suitable for detecting various analytes, including DNA, proteins,
and gases. The MWCNTs consist of multiple layers of graphene tubes and
offer high mechanical strength and stability. They are used in sensors for
detecting glucose, dopamine, and other biomolecules.
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| 4 |
What is one challenge in integrating nanotechnology with electrochemical sensors for medical use?
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| 5 |
Which technique is commonly used to enhance the signal in nanotechnology-based electrochemical sensors?
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5. Magnetic separation |
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| 6 |
Why is biocompatibility crucial in designing electrochemical sensors for medical diagnostics?
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2. To prevent rejection or toxicity in biological systems |
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| 7 |
How do label-free electrochemical sensors differ from labeled ones?
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2. They offer indirect detection only |
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| 8 |
What is one promising application of nanotech-based electrochemical sensors?
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2. Early detection of disease biomarkers |
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| 9 |
Which of the following factors most directly affects the sensor's detection limit?
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2. Nanomaterial surface-to-volume ratio |
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| 10 |
What is one of the primary goals of using digital sensing technologies in cancer care?
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3. Enable earlier and more personalized diagnosis |
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| 11 |
Which type of sensor is often used to monitor physical activity in cancer patients?
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5. Gas chromatography |
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| 12 |
Why are patient-reported outcomes important in digital cancer care systems?
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3. They provide subjective data complementing sensor metrics |
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| 13 |
What is one major advantage of real-time digital sensing in cancer treatment?
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3. Rapid detection of deterioration in patient condition |
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| 14 |
Which of the following is a key barrier to implementing digital sensing in routine oncology practice?
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3. Limited digital literacy among patients and providers |
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| 15 |
Which stakeholders are considered central to the adoption of digital cancer care platforms?
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2. Patients and healthcare providers |
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| 16 |
Digital sensing systems collect which combination of data types for cancer care optimization?
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2. Sensor metrics and patient-reported outcomes |
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| 17 |
How do digital sensors contribute to improving the quality of life in cancer patients?
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3. By enabling symptom tracking and early intervention |
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| 18 |
What does the article suggest about the future direction of digital sensing in cancer care?
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3. It holds promise for widespread personalized care |
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| 19 |
Based on the diagram, which of the following would most likely result in a false signal output in an electrochemical sensor for medical diagnostics?
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5. Applying nanomaterials to enhance the electron flow at the electrode |
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| 20 |
Based on the image, which of the following scenarios best demonstrates the advantage of using emerging digital platforms in cancer diagnostics?
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3. A portable chip-based sensor detects protein biomarkers from a blood sample within minutes |
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