Probe Array Preparation
Probe Array Preparation - Related Videos
05:04
Active Probe Atomic Force Microscopy with Quattro-Parallel Cantilever Arrays for High-Throughput Large-Scale Sample Inspection
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Cited by 5 •
2023
Large-scale sample inspection with nanoscale resolution has a wide range of applications, especially for nanofabricated semiconductor wafers. Atomic force microscopes can be a great tool for this purpose, but are limited by their imaging speed. This work utilizes parallel active cantilever arrays in AFMs to enable high-throughput and large-scale inspections.
11:01
Preparation and In Vivo Use of an Activity-based Probe for N-acylethanolamine Acid Amidase
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Cited by 3 •
2016
Here, we describe the preparation and use of an activity-based probe (ARN14686, undec-10-ynyl-N-[(3S)-2-oxoazetidin-3-yl]carbamate) that allows for the detection and quantification of the active form of the proinflammatory enzyme N-acylethanolamine acid amidase (NAAA), both in vitro and ex vivo.
09:16
Array Comparative Genomic Hybridization (Array CGH) for Detection of Genomic Copy Number Variants
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Cited by 7 •
2015
Array CGH for the detection of genomic copy number variants has replaced G-banded karyotype analysis. This paper describes the technology and its application in a diagnostic service laboratory.
09:48
Neural Activity Propagation in an Unfolded Hippocampal Preparation with a Penetrating Micro-electrode Array
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Cited by 2 •
2015
We have developed an in vitro unfolded hippocampus which preserves CA1-CA3 array of neurons. Combined with the penetrating micro-electrode array, neural activity can be monitored in both the longitudinal and transverse orientations. This method provides advantages over hippocampal slice preparations as the propagation in the entire hippocampus can be recorded simultaneously.
05:47
Sample Preparation for Probe Electrospray Ionization Mass Spectrometry
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Cited by 11 •
2020
This article introduces sample preparation methods for a unique real-time analytical method based on the ambient mass spectrometry. This method lets us perform real-time analysis of the biological molecules in vivo without any special pretreatments.
FAQs
Surface chemistry determines whether immobilized probes remain active and whether target molecules bind preferentially to them. A functionalized substrate provides attachment sites, while appropriate conditions help preserve probe activity during preparation and measurement. If nonspecific interactions are not controlled, background binding can obscure true signals, reducing the array’s sensitivity and specificity.
Probe sequence selection determines which target biomolecules the array can recognize, while assigning each probe a known location connects a detected signal with a specific target. Organized placement also supports spatial resolution, allowing multiple measurements on one surface. Consistent locations and preparation conditions improve reproducibility when arrays are compared across samples or experiments.
Blocking reduces unwanted interactions between the sample and unoccupied or reactive surface regions. Washing then removes material that has not bound sufficiently to the intended probes. Together, these steps help distinguish specific target hybridization from nonspecific binding, improving signal interpretation and supporting more reliable measurements in complex biological samples.
Performance depends on several linked choices: probe sequence, attachment to the substrate, preservation of probe activity, control of surface chemistry, and management of nonspecific binding. Probe placement additionally affects spatial resolution. When these variables are controlled consistently, the array can produce stronger target discrimination, more interpretable signals, and results that are easier to reproduce.
A typical workflow begins by selecting probe sequences and assigning their intended positions on a defined substrate. Researchers then immobilize the probes through the chosen surface chemistry while protecting their activity. Blocking limits unwanted interactions, and washing removes weakly or nonspecifically associated material before target hybridization and signal detection. Each stage contributes to measurement quality.
This approach is useful when a study must examine many biomolecular targets in parallel rather than analyze each target separately. Supported applications include gene-expression profiling, genotyping, biomarker analysis, and development of diagnostic or research platforms. Its multiplexed format helps researchers evaluate complex biological samples efficiently while retaining information about the identity and location of detected targets.
Signals from known probe locations can indicate which complementary target biomolecules are present or measurable in a sample. Depending on the selected probes, the resulting pattern can support gene-expression analysis, genotype assessment, or biomarker investigation. In bioengineering, these measurements provide a foundation for multiplexed assay design and for evaluating diagnostic or research platform performance.