Author Archive: Guanliyuan

Individually Sealed Dual-Head Swab for Sample Integrity

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The individually sealed dual-head swab is designed to preserve sample integrity, using airtight packaging and dual sampling heads for reliable forensic and clinical collection.

Core Content

  • Design: Dual absorbent flocked heads + tamper-evident individual foil sealing; shaft with color markers for head distinction.
  • Usage: Open sealed package, collect primary/duplicate samples with separate heads, place in preservation tubes, label for transport.

Key Features

  • Individual sealing: Airtight foil packaging locks in sterility, preventing contamination before use.
  • Sample integrity: Tamper-evident design ensures swab authenticity for admissible evidence.
  • Dual sampling: Two heads enable simultaneous collection without extra tools, boosting efficiency.
  • High retention: Flocked heads capture and retain trace samples (DNA, microbes) securely.

Application Scope

  • Forensic crime scenes: Collecting blood, saliva, or touch DNA where sample purity is critical.
  • Clinical diagnostics: Patient sample collection for sensitive microbial or genetic testing.
  • Food safety: Sampling for pathogen detection with strict integrity requirements.

Field-Friendly Biological Evidence Collection Swab

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The field-friendly biological evidence collection swab is designed for rugged field use, balancing portability, durability, and sample integrity for forensic on-site sampling.

Core Content

  • Design: Flexible yet sturdy shaft (resists breakage), water-resistant sterile packaging, and absorbent flocked/cotton head.
  • Usage: Tear open durable packaging, swab target evidence, place in included moisture-proof tube, label for transport.

Key Features

  • Field durability: Shaft withstands rough handling; packaging protects from dust, moisture, and debris.
  • Portable: Compact size fits field kits, patrol bags, or emergency response packs.
  • Sample protection: Absorbent head retains evidence (blood, saliva) during transport in varied temperatures.
  • Ready-to-use: No prepping needed, ideal for time-sensitive on-site investigations.

Application Scope

  • Outdoor crime scenes: Hiking trails, construction sites, or rural areas with harsh conditions.
  • Emergency response: Disaster zones or accident sites requiring immediate evidence collection.
  • Wildlife forensics: Field sampling of animal remains or evidence in remote conservation areas.

Forensic Cotton Swab with Dual Sampling Heads

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The forensic cotton swab with dual sampling heads is a specialized tool for forensic evidence collection, enabling efficient dual-sample gathering with sterile cotton tips.

Core Content

  • Design: Dual cotton sampling heads (high-absorbent) on a sturdy plastic shaft; individually sealed in sterile packaging.
  • Usage: Use one head for primary sample collection, the other for duplicate/secondary sampling; place each in separate preservation tubes.

Key Features

  • Dual sampling: Two heads allow simultaneous or sequential collection without extra tools, saving time.
  • Sterile assurance: EO-sterilized cotton tips and packaging prevent cross-contamination of evidence.
  • High absorbency: Cotton material effectively captures liquid and trace biological samples (blood, saliva).
  • Cost-efficient: Reduces tool count while maintaining quality for multiple evidence points.

Application Scope

  • Crime scenes: Collecting bloodstains, saliva, or epithelial cells from weapons, clothing, or surfaces.
  • Forensic labs: Providing duplicate samples for parallel DNA testing and result verification.
  • Field investigations: Limited-tool scenarios needing dual samples (e.g., remote crime scenes).

Sterilized Multi-Purpose Collection Swab Kit

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The sterilized multi-purpose collection swab kit is an all-in-one solution for diverse sampling needs, featuring sterile swabs and tools for forensic, clinical, and research use.

Core Content

  • Kit Components: 20 sterile flocked swabs, 10 sample tubes, 5 alcohol swabs, sterile gloves, labeling sheets, and a portable storage case.
  • Usage: Select swab, collect sample (blood, saliva, touch DNA), place in tube, seal and label; store case for on-the-go access.

Key Features

  • Full sterilization: EO-sterilized swabs and tools eliminate cross-contamination risks in sensitive sampling.
  • Multi-purpose design: Suitable for biological, forensic, and environmental sample collection.
  • Portable organization: Compact case keeps components organized for field or lab use.
  • High versatility: Works with DNA extraction, microbial testing, and trace evidence analysis.

Application Scope

  • Forensic fieldwork: Crime scene sampling of touch DNA, bloodstains, and saliva residues.
  • Clinical settings: Patient sample collection for disease screening and diagnostic testing.
  • Research labs: Environmental or microbial sampling for scientific experiments.

Rapid DNA Swab for Forensic Sample Extraction

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The rapid DNA swab is a forensic tool for quick sample extraction, designed to accelerate DNA collection and processing without compromising evidence quality.

Core Content

  • Design: High-efficiency flocked head (max cell capture) + compatible with rapid DNA extraction systems; lightweight ergonomic shaft.
  • Usage: Swab target evidence (touch DNA, blood, saliva); elute directly into rapid extraction kits; proceed to DNA profiling.

Key Features

  • Rapid workflow: Cuts sample preparation time by 40% vs. traditional swabs for urgent forensic needs.
  • High compatibility: Works with mainstream rapid DNA analyzers for seamless integration.
  • Superior yield: Flocked head retains 50% more cells, ensuring reliable results from trace samples.
  • Sterile & secure: Single-use packaging prevents cross-contamination in crime scene sampling.

Application Scope

  • Crime scene investigations: Urgent cases needing fast DNA results (e.g., missing persons, active threats).
  • Forensic labs: Rapid processing of high-priority samples for timely case progression.
  • Border security: Quick DNA screening of forensic evidence in cross-border criminal cases.

Dual-End Swab for Blood, Saliva, and Semen Samples

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The dual-end swab is specialized for collecting blood, saliva, and semen samples, with two functional heads enabling efficient, multi-type evidence gathering in forensic scenarios.

Core Content

  • Design: Dual-headed with ultra-absorbent flocked heads; ergonomic shaft with labeled ends (A/B) for sample type distinction.
  • Usage: Use separate heads for different samples (e.g., A for blood, B for saliva); place each head in dedicated preservation tubes post-collection.

Key Features

  • Multi-sample compatibility: Works for blood, saliva, and semen without cross-contamination via labeled dual ends.
  • High absorbency: Flocked heads capture 30-50% more sample volume than standard cotton swabs.
  • Forensic-ready: Single-use, sterile packaging maintains sample integrity for DNA analysis.
  • Efficient workflow: Reduces tool count while handling multiple evidence types in one device.

Application Scope

  • Crime scenes: Homicides, sexual offenses, or assaults requiring blood, saliva, and semen sample collection.
  • Forensic labs: Processing multi-type biological evidence for DNA profiling and court admissibility.
  • Evidence verification: Collecting duplicate or different sample types from the same evidence item.

Double-Head Biological Evidence Swab – Multi-Sample Use

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The double-head biological evidence swab is a multi-sample tool, featuring two distinct sampling heads to collect and separate biological evidence efficiently in one device.

Core Content

  • Design: Dual-headed structure with flocked/cotton heads (or two flocked heads); central shaft with color-coded markers for head distinction.
  • Usage: Use one head for primary sample collection, the other for duplicate/secondary sampling; place each head in separate preservation tubes.

Key Features

  • Multi-sample capability: Two heads enable simultaneous or sequential sampling without extra tools.
  • Sample separation: Prevents cross-contamination between primary and duplicate samples.
  • Cost-efficient: Reduces tool count while maintaining sampling quality for multiple evidence points.
  • Sterile: Single-use, individually packaged to ensure evidence integrity in crime scenes.

Application Scope

  • Forensic crime scenes: Collecting blood, saliva, or touch DNA from the same or adjacent evidence surfaces.
  • Lab verification: Providing duplicate samples for parallel DNA testing and result confirmation.
  • Field investigations: Limited-tool scenarios needing multiple samples (e.g., remote crime scenes).

Efficient Cell Transfer Collector for DNA Testing

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The efficient cell transfer collector is a specialized tool for DNA testing, designed to maximize cell recovery during collection and transfer for accurate forensic and clinical analysis.

Core Content

  • Design: Hydrophilic sampling head (enhances cell adhesion) + detachable shaft; compatible with standard DNA extraction tubes.
  • Usage: Swab target surface to collect cells; detach sampling head into extraction tube; elute directly for DNA testing.

Key Features

  • High transfer efficiency: 95%+ cell recovery rate, outperforming traditional swabs in DNA yield.
  • Seamless workflow: Detachable head eliminates cell loss during transfer to extraction tubes.
  • Sterile & pure: Single-use, EO-sterilized packaging prevents contamination affecting test results.
  • Versatile compatibility: Works with automated and manual DNA extraction protocols.

Application Scope

  • Forensic DNA testing: Crime scene trace evidence (touch DNA, saliva) with low cell abundance.
  • Clinical diagnostics: Patient cell sampling for genetic testing and pathogen DNA detection.
  • Research labs: High-yield cell collection for molecular biology experiments and DNA sequencing.

Individually Sterilized Micro Cell Collector

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The individually sterilized micro cell collector is a forensic tool for trace micro-cell sampling, with single-unit sterilization ensuring contamination-free evidence collection.

Core Content

  • Design: Fine-tipped sampling head (0.5mm diameter) for micro-area access + lightweight plastic handle; individually sealed in sterile foil.
  • Usage: Tear open sterile package, swab target micro-surfaces, place collector in preservation tube, label for transport.

Key Features

  • Individual sterilization: Each unit undergoes EO sterilization, eliminating cross-contamination risks.
  • Micro-scale precision: Fine tip reaches narrow crevices (e.g., tool grooves, electronic ports) for targeted sampling.
  • Sterility assurance: Tamper-evident packaging confirms sterility until use in crime scenes or labs.
  • High cell retention: Sampling head material traps micro-cells for reliable DNA extraction.

Application Scope

  • Forensic crime scenes: Micro-cell collection from small evidence like jewelry, bullet casings, or fragmented surfaces.
  • Lab micro-sampling: Processing trace evidence for low-abundance DNA analysis.
  • Biological threat investigations: Sampling micro-spots on surfaces for pathogen detection.

Forensic Micro Cell Adhesive Tool – Lab & Field Use

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The forensic micro cell adhesive tool is a dual-use device for lab and field, using adhesive technology to collect micro-scale cells from diverse forensic surfaces efficiently.

Core Content

  • Design: Flexible adhesive pad (low-tack to avoid surface damage) + rigid handle; pad size 1-2 cm² for targeted micro-sampling.
  • Usage: Press adhesive pad on target; peel gently to collect cells; transfer pad to microscope slide or extraction tube.

Key Features

  • Dual-use: Suitable for both controlled lab environments and rugged field crime scenes.
  • Micro-cell focus: Adhesive pad captures even single cells, ideal for low-abundance samples.
  • Surface-friendly: Low-tack adhesive preserves delicate evidence surfaces (e.g., documents, fabrics).
  • Easy transfer: Adhesive pad releases cells fully during lab extraction, ensuring high recovery rate.

Application Scope

  • Forensic fieldwork: Micro-cell collection from weapons, electronics, or fabric fibers at crime scenes.
  • Lab analysis: Preparing micro-samples for DNA testing, microscopy, or microbial identification.
  • Cold cases: Re-sampling old evidence to recover micro-cells missed by traditional tools.