Biological Testing TRIZ Cases

Screen therapeutic compounds via hypoxia-induced exosome release from retinal pigment epithelium cells to bypass multi-year clinical trial delays.

A blood sample analyzer measures coagulation times using reagents with different phospholipid concentrations to calculate index values.

A lateral flow test strip integrates sensing and reference capacitors to measure time-dependent capacitance differences across the test region.

Anti-idiotypic antibodies mediate detection of multispecific antibodies, eliminating sample matrix interference and reducing preparation time.

A reference solution combining polymers and glycols to calibrate blood analyzers.

Dual labeling substances enable immunochromatography to measure samples across a broad concentration spectrum.

Synthetic reference peptides enable mass spectrometry quantification of modified peptides without metabolic labeling.

Segmented cases isolate the sample chamber from air currents and temperature changes, ensuring stable measurement precision.

Alternating magnetic fields reduce particle aggregation on planar surfaces, eliminating flow-based instrument complexity and sample clogging risks.

An internal shutter driven by a sensor ejection mechanism resolves the trade-off between dust protection and ease of operation.

Bispecific probes bind cell targets and detection reagents to generate compensation matrices that resolve spectral overlap errors.

Chemical grafting of optical probes in a polymer matrix prevents leaching while enabling simultaneous detection of glucose, oxygen, and pH.

Screen printing hydrophobic ink replaces complex inkjet processes to form multiple fluidic channels, enabling mass production of reliable membrane sensors.

A blood condition analyzing device extracts features from temporal electrical characteristic data to evaluate physiological changes.

A signal enhancer system uses unique non-biological peptide antigens to enable robust signal amplification in biological samples.

A hydrophobic region on the sample carrier retains analytes during washing, eliminating manual desalting steps and increasing throughput.

A surfactant treatment liquid excludes steroids from cyclodextrin complexes to enable accurate antigen-antibody reactions.

Pre-impregnating filter paper with a radical inhibitor prevents decomposition of NAD+ and NMN, ensuring accurate quantification via dried blood spot analysis.

A computer system divides genetic sequences across multiple processors to extract surprisal data representing nucleotide differences from a reference genome.

A joint point-of-care testing analyzer measures blood analytes and formed elements using integrated optical and imaging detectors.

Dual-label conjugates enable simultaneous analyte and interferent quantification in immunoassays.

A diffuser lens and mask create oblique illumination angles to enhance contrast for transparent samples.

An integrated buffer vial breaks down saliva mucins to restore capillary flow, resolving accuracy issues in rapid point-of-care testing.

Replacing needle biopsy with biochemical analysis of PSA sugar chains reduces patient burden while maintaining diagnostic precision.

Subtracting sequestered background signals isolates analyte concentrations, resolving interference from blood constituents without manual extraction.

Oscillating magnetic particles with a magnetoresistance sensor to detect analytes in lateral flow assays.

Allosteric binding agents stabilize transient protein complexes via cell sorting to enable structural investigation.

Ion mobility separation resolves peptide ions by drift velocity to distinguish cross-linked species from background signals in mass spectra.

Fluorescent liposomes convert instrument-dependent MFI values into standardized MESF units, resolving inter-laboratory consistency challenges in EV analysis.

A control unit accumulates contamination weightings to trigger probe cleaning.

Multi-axis driving mechanisms automate cup handling to resolve the contradiction between manual labor intensity and test efficiency.

Derivatizing peptide C-termini with carbodiimide reagents generates doubly-charged ions for mass spectrometry analysis.

A sample analysis device uses periodic recessed and protruding structures to immobilize antibodies for precise exosome capture.

PDMS microwells orient cytokinetic rings parallel to observation planes, resolving poor spatial resolution from perpendicular views.

Pulsed UV LED excitation eliminates Xenon lamp afterglow to improve signal-to-noise ratio in lanthanide fluorophore detection.

A synthetic fluid composition replicates human blood viscosity and surface tension for forensic testing.

A biosensor meter detects a connected USB port and disables fluid sample analysis to prevent user interaction with the device.

Lentiviral particles transduce target cells to screen for novel drug resistance mutations, overcoming the limitation of detecting only known variants.