| 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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They have a high surface area, and good electrical conductivity, and biocompatability which makes them accurate. |
Digital sensing technologies in cancer care: A new era in early detection and personalized diagnosis |
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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 offer the advantage of direct detection of biomolecular interactions without the need for additional labeling agents, which simplifies the sensing process and is particularly advantageous for point-of-care (POC) diagnostics. |
Digital sensing technologies in cancer care: A new era in early detection and personalized diagnosis |
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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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The digital sensor transformation can be integrated with smartphones, AI algorithms, and machine learning technologies |
Digital sensing technologies in cancer care: A new era in early detection and personalized diagnosis |
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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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Aptamers offer high affinity and specificity for target molecules, making them suitable for detecting disease biomarkers, so functionalization of sensor surfaces with aptamers improves selectivity and specificity in biosensors |
Digital sensing technologies in cancer care: A new era in early detection and personalized diagnosis |
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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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Nanomaterials have high surface area to volume ratio, which enhances their reactivity and interaction with other substances. |
Digital sensing technologies in cancer care: A new era in early detection and personalized diagnosis |
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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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The synthesis method and conditions significantly influence the properties of nanomaterials, such as size, shape, surface charge, and crystallinity, which will affect their electrochemical behavior and sensor performance. |
Digital sensing technologies in cancer care: A new era in early detection and personalized diagnosis |
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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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Electrochemical sensors are particularly attractive for point-of-care applications due to their low cost, portability, rapid response, and ease of miniaturization. |
Digital sensing technologies in cancer care: A new era in early detection and personalized diagnosis |
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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 is not immobilized properly, the sensor may be unable to capture target molecules properly, resulting in weaker signals, inaccurate readings, and unreliability in diagnostics. |
Digital sensing technologies in cancer care: A new era in early detection and personalized diagnosis |
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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 used due to their good electrical conductivity and large surface area, which enhance electron transfer and improve sensor sensitivity. |
Digital sensing technologies in cancer care: A new era in early detection and personalized diagnosis |
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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 biosensors enable individuals to monitor their health status in real time and remotely by continuously monitoring biomarkers, which not only facilitates personalized patient management but also contributes to large-scale data pools. |
Digital sensing technologies in cancer care: A new era in early detection and personalized diagnosis |
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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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Wearable biosensors measure biochemical indicators in a non-invasive manner. The continuous and real-time physiological information they provide will have a major impact on daily life. |
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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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The combination of subjective patient-reported data and objective sensor data offers a more comprehensive view of the patient's condition. |
Digital sensing technologies in cancer care: A new era in early detection and personalized diagnosis |
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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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Challenges such as standardization, integration with clinical workflows, and user adaptability (including digital literacy) remain critical hurdles in adopting these platforms in real-world oncology settings |
Digital sensing technologies in cancer care: A new era in early detection and personalized diagnosis |
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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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Emerging platforms include portable diagnostic tools and smartphone-integrated biosensors for rapid and personalized medical decisions. These innovations aim to shift diagnostics from centralized laboratories to decentralized, user-friendly formats, enhancing access and timeliness in cancer care |
Digital sensing technologies in cancer care: A new era in early detection and personalized 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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A weekly web-based symptom self-reporting system in clinic patients resulted in higher overall survival (19 months vs. 12 months) and improved performance level at the time of relapse. Digital tools allow for early identification of complications, timely intervention, and better patient outcomes. |
Digital sensing technologies in cancer care: A new era in early detection and personalized diagnosis |
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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 ultrasensitive assay method that allows for the detection of low-abundance proteins, enabling early diagnosis of diseases such as cancer. |
Digital sensing technologies in cancer care: A new era in early detection and personalized 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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The integration of AI into clinical workflows necessitates collaboration between data scientists and healthcare professionals, ensuring that data-driven insights are clinically relevant and actionable. |
Digital sensing technologies in cancer care: A new era in early detection and personalized diagnosis |
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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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Digital tools help patients to participate more actively in their own care, enhancing communication with healthcare providers and increasing shared decision-making, this makes the apporach more patient-based. |
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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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They are smaller, so provide a large surface area to volume ratio. |
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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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The image shows a biosensor platform surrounded by icons representing different diagnostic applications: toxin detection, cancer biomarkers detection, liquid biopsies, heavy metal detection. Changing the biorecognition components (e.g. antibodies, aptamers, enzymes) specific to each application. |
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