| 1 |
How might using gold nanoparticles in electrochemical sensors enhance early-stage disease detection?
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2. By increasing surface interactions for more accurate biomarker capture |
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Gold nanopartricles have a large surface area and is a great conductor, which helps them attract and hold onto disease biomarkers easily. This makes the sensors better at spotting tiny amounts of these markers,which is important for detecting disease at early stages when treatment is more effective. |
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| 2 |
Which of the following best explains how label-free electrochemical sensors support point-of-care medical diagnostics?
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3. They provide direct measurement of target molecules with minimal preparation |
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Label-free electrochemical sensors can detect molecules directly, without needing extra steps like adding dyes or markers. This makes them fast, easy to use, and ideal for settings like clinics or even at home, where quick results are important and lab equipment isn’t available. |
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| 3 |
Why is electrochemical transduction considered advantageous over optical transduction in medical diagnostic sensors?
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2. It is more compatible with smartphone integration for remote analysis |
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Electrochemical transduction turns chemical reactions into electrical signals, which are easy to measure with small, low power devices. These signals can be easily read by smartphones or portable tools, making them great for remote or real time medical testing, something optical systems often need bigger equipment to do. |
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| 4 |
Which action would most effectively increase specificity in a sensor designed to detect a single disease biomarker?
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3. Functionalizing the electrode with disease-specific aptamers |
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By attaching aptamers to the sensors electrode, the sensor becomes highly specific to the disease you’re trying to detect, which helps avoid false positives from other substances. |
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| 5 |
In a scenario where a sensor must detect ultra-low concentrations of a cancer biomarker, which modification is most critical?
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3. Incorporating nanostructures to increase surface-to-volume ratio |
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When trying to detect very small amounts of a cancer biomarker, the sensor needs to be extremely sensitive. Adding nanostructures gives the sensor a much larger surface area compared to its size. This allows more biomarker molecules to attach to the sensor, making it easier to detect even the smallest amounts accurately. |
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| 6 |
Why might two electrochemical sensors using the same nanomaterial produce inconsistent results?
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3. Variations in nanomaterial synthesis affect structural uniformity |
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Two sensors of the same kind of nanomaterial with small difference in how the materials are made can drastically affect how they work. The differences can lead to one sensor being more sensitive or accurate than. The other, which can cause inconsistency in the results. |
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| 7 |
Which characteristic makes nanotechnology-based electrochemical sensors especially suitable for wearable medical devices?
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3. They allow miniaturization without losing sensitivity |
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Nanotechnology-based sensors can be made very small because nanomaterials still work well even at tiny sizes. This makes them perfect for wearable devices, like smartwatches or patches, that need to be lightweight and compact but still accurately detect health signals like glucose or disease markers. |
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| 8 |
What would likely happen if the bioreceptor layer is poorly immobilized on the sensor surface?
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3. Target biomolecules may not bind effectively, leading to weak or inaccurate signals |
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If the bioreceptor layer isn’t properly attached to the sensor surface, it can shift or wash away. That means it won’t catch the target molecules (like disease markers) as well, causing the sensor to give weak or incorrect results. Proper immobilization is key for accuracy. |
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| 9 |
Which modification would most directly enhance electron transfer in the sensor system?
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2. Incorporating carbon nanotubes on the electrode surface |
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Carbon nanotubes are excellent conductors of electricity. When added to the electrode surface, they create more paths for electrons to move quickly and easily. This improves how well the sensor can detect signals from the target molecules, making the sensor more efficient and sensitive. |
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| 10 |
How can digital sensing technologies best support personalized cancer care?
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2. By collecting real-time data on patient-specific symptoms and responses |
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Digital sensing technologies can track how a specific patient feels and reacts to treatment in real time. This helps doctors adjust care based on that person’s unique needs instead of using a nonspecific approach, which leads to better and more personalized treatment for cancer. |
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| 11 |
If a clinician needs to monitor fatigue and motion in cancer patients at home, which device should be prioritized?
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2. Smart accelerometers in wearables |
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Smart accelerometers in wearable devices can track a patient’s movement and activity levels throughout the day. This helps clinicians monitor fatigue and physical motion remotely, making them ideal for home care without needing complex lab equipment. |
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| 12 |
Why is combining sensor data with patient-reported outcomes (PROs) important in digital cancer care?
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3. It allows a holistic understanding of patient experience |
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Combining sensor data with patient reported outcomes means doctors get both objective measurements (heart rate or activity) and the patient’s own feelings and symptoms. This gives a fuller picture of how the patient is doing, helping doctors make better treatment decisions tailored to each person. |
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| 13 |
A hospital invested in wearable digital monitoring but received low engagement from patients. Which of the following is most likely a contributing factor?
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3. Low digital health literacy among patients |
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If patients don’t understand how to use digital health tools or don’t feel comfortable with technology. They’re less likely to use wearable monitors consistently. Improving their digital skills and providing easy to use devices helps increase engagement and benefits from the monitoring. |
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| 14 |
Which future trend is most aligned with the development of emerging digital cancer platforms?
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2. Creation of pocket-sized biosensing tools integrated with smartphones |
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This allows patients and doctors to quickly test and monitor cancer markers anytime, anywhere, because they focus on making sensors smaller and portable, which helps with faster diagnosis. |
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| 15 |
How can real-time symptom monitoring positively affect treatment decisions?
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3. By enabling rapid intervention before major deterioration |
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Doctors are able to see changes in patient’s condition as they happen. Which means they can act quickly to adjust treatment or provide help before the patient’s health gets worse. |
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| 16 |
Which technology is best suited to detect rare cancer biomarkers with high precision?
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1. Digital ELISA |
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Digital ELISA is an advanced technology that can detect extremely low levels of cancer biomarkers with very high precision. It’s much more sensitive than regular tests, making it ideal for spotting rare molecules important for early cancer diagnosis. |
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| 17 |
Why is collaboration between data scientists and clinicians essential in digital oncology platforms?
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3. Data insights require clinical validation for real-world use |
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Data scientists analyze complex information from sensors and AI, but clinicians must interpret these results to make sure they are accurate and useful for patient care. Working together ensures that digital tools truly help doctors make better decisions in treating cancer. |
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| 18 |
Which outcome is most likely when cancer patients actively use digital health tools to track their condition?
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2. They engage more actively in shared treatment decisions |
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When patients use digital health tools to monitor their condition, they understand their health better and can communicate more clearly with their doctors. This helps them take part in making decisions about their treatment, leading to care that fits their needs and preferences. |
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| 19 |
A research team is developing a highly selective electrochemical sensor for detecting cancer biomarkers in blood. Based on the diagram, which combination of nanoparticle properties would most likely enhance both specificity and signal sensitivity?
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2. Small spherical particles with antibody-conjugated targeting ligands |
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Small spherical nanoparticles have a large surface area relative to their size, which helps improve signal sensitivity. When these particles are linked to antibodies that specifically bind cancer biomarkers, the sensor becomes highly selective—meaning it targets only the cancer markers you want to detect. This combination boosts both how accurately and how strongly the sensor detects cancer biomarkers. |
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| 20 |
A hospital is planning to adopt a single digital sensing platform to support a wide range of diagnostic applications. Based on the image, which of the following most justifies this decision?
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2. One platform can be customized to detect toxins, cancer biomarkers, and heavy metals using interchangeable biorecognition elements |
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A single digital sensing platform can be adapted to detect different substances by swapping out the bioreceptors that recognize specific targets. This flexibility means the hospital can use one machine for many tests, saving money and space while still diagnosing a variety of health issues accurately. |
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