Analysis Using Chemical Indicators TRIZ Cases

A portable electronic device measures reflected light intensity across multiple wavelengths to determine aqueous solution characteristics.

Lumican and ECM protein 1 analysis detects non-necrotic ischemia before tissue death occurs.

Isothiocyanate reagents convert polyamines into thiourea derivatives for precise detection.

Replacing ankle-brachial index measurements with beta-2 microglobulin biomarkers resolves equipment complexity and false negative rates in diabetic patients.

A portable analyzer uses a specific aptamer to detect bisphenol A through fluorescence measurement.

A tetraphenylethene-based fluorescent sensor utilizes aggregation-induced emission to detect glucose levels in biological samples.

Procalcitonin cytokine detection in wound fluid resolves delayed microbiological culture times by enabling early antimicrobial therapy initiation.

Terpyridine-containing tetraphenylethene derivatives overcome aggregation-caused quenching to enable selective detection of zinc and iron ions.

A specimen retention container uses a flexible membrane to hold tissue samples securely during transport.

Gold(III)-NHC complexes stabilize anticancer activity and enable thiol detection by resolving instability under physiological conditions.

A sample analyzer measures reagent volume during standby to ensure sufficient supply before analysis.

A one-piece self-expiring badge design merges substrates and adhesive into a single flexible unit for easy activation.

Real-time light transmission monitoring determines separation completion, preventing capillary clogging and ensuring accurate blood sample analysis.

Segmented phosphorescent dyes on a needle enable depth-resolved oxygen mapping without mechanical re-insertion.

Water-soluble coloring agent in a solid pharmaceutical form changes beverage color upon dissolution.

A dry reagent composition enables rapid colorimetric detection of metallic nanoparticles in aqueous media.

A capillarity reaction chamber uses capillary action to quantitatively take up and hold liquid within a micro-well structure.

Fluorescence quenching measures bromate ion concentration by subtracting sample intensity from standard values to overcome interference.

A handheld cytology apparatus uses a rolling contact mechanism to transfer cells from a filter to a slide.

Modified primers spanning exon-exon junctions selectively amplify mRNA while minimizing genomic DNA contamination in RT-PCR assays.

Colorimetric reagents enable real-time copper and silver detection, replacing lengthy laboratory analysis with rapid on-site monitoring.

A lateral flow immunoassay kit captures MLL4, LAMA2, and PLXDC2 protein markers using specific antibodies.

RTMI enables subcellular resolution imaging of basal ROS in live cells by shifting emission to the near-infrared window, reducing background interference.

A mechanochromic polymer backbone incorporates mechanophores that shift color under mechanical stress to reveal internal damage.

A colorimetric assay detects type I pyrethroids using a nitrite salt reaction on absorbent substrates.

AIE chemosensors overcome aggregation-caused quenching to enable sensitive amine detection for food safety monitoring.

Sealed membrane dispensers mimic substance signatures to calibrate detectors against environmental variations.

Segmented colorimetric and chemiresistive sensors on a fibrous substrate resolve the contradiction between measurement precision and device complexity.

A fluorescent test paper uses carbon quantum dots and copper nanoclusters to detect mercury ions.

Quaternary ammonium compounds stabilize methylene blue color formers, suppressing spontaneous oxidation and background absorbance to extend storage life.

Segmented capillary channels collect precise fluid volumes while vent paths remove trapped air to prevent sample contamination.

High site density glutathione beads reduce off-rates and improve measurement accuracy in flow cytometry assays.

Pre-impregnated test strips detect gamma-hydroxybutyrate and ketamine in beverages through distinct color changes.

A valve unit uses a phase change material to block and unblock microchannels through drain chambers.

A specimen transport apparatus uses parallel paths to move test tubes and sample racks while an integrated device simultaneously aliquots and dispenses liquid samples.

A portable field testing device mixes refrigerant samples with a reactive medium to produce a colored product for visual concentration analysis.

Liquid sample flow moves particles within a retaining section to mix reagents, eliminating separate stirring steps and reducing measurement time.

Predetermined Michaelis-Menten parameters reduce calibration to simple linear calculations, eliminating complex nonlinear equations and multi-point blood draws.

Selective hypochlorous acid probes overcome interference from other reactive species by generating distinct fluorescence upon reaction.

Optical interrupt sensors detect carrier voids to automate vacuum loading and sealing, eliminating manual handling bottlenecks.

A tip collar provides structural rigidity to pipette tips during assembly.

Silver decavanadate indicator eliminates hexavalent chromium health risks while maintaining accurate chloride detection through distinct colorimetric response.

A DC motor tape drive integrates a reduction gear unit to reduce noise and vibration while maintaining compact device size.

A disposable blood sampling device uses capillary action to collect fluid and pressure differential to move the sample into a sealed testing chamber.

Encapsulating liquid reagents in porous hydrogel beads resolves storage and transport bottlenecks while maintaining precise visual concentration detection.

Imidazole-containing polymers mediate fluorophore binding to eliminate synthesis complexity while maintaining brightness for sensitive Cu+ and Hg2+ detection.

Microprocessor-controlled robot automates clinical specimen handling to reduce worker exposure to biohazards while maintaining processing consistency.

A capillary dispensing apparatus uses pump-controlled liquid surface positioning to suction and discharge precise nanoliter volumes.

A lateral flow test device incorporates a movable stopping mechanism to lock and preserve reaction results on the test strip.