We show our work.
The OpenSampling Library.

The peer-reviewed evidence behind every format and device on the platform: method and clinical validation across blood, saliva, urine and stool. We link an open-access full text wherever one exists, and the publisher or PubMed record otherwise. The OpenSampling Library holds every paper, each on its own page with our finding and a link to an open-access copy wherever one exists. Below is the library by specimen and device; each shelf opens into it.

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What this is

Every figure, traced.

Every figure on this site traces to a paper in the OpenSampling Library: peer-reviewed studies on capillary blood, VAMS, dried blood spots, saliva, urine and stool, indexed by matrix, device and topic, each on a page of its own with a link to a legitimate copy, open access where one exists. A figure on a page is quoted from the paper’s abstract or full text and attributed to the device the study used; a maker’s figure is attributed to the maker.

OpenSampling Library by Humans Nexus

Library Microsampling and monitoring

Each shelf shows its newest papers and opens into the OpenSampling Library, where every paper has a page of its own. Shelves are ordered by how many papers they hold, whoever makes the device. These citations describe the published evidence for the collection formats and devices themselves, not claims about specific Humans Nexus assays, which are validated per analyte and per laboratory.

Blood

  1. Clinical Validation of Venetoclax Volumetric Microsampling in Leukemia, with Whole-Blood-to-Plasma Conversion and Self-Microsampling Feasibility

    Clinical Pharmacokinetics · 2026 · Paywalled

    In AML and CLL, 91% of VAMS venetoclax results fell within 20% of plasma after individualised haematocrit correction; in home sampling, 18 of 21 patients self-sampled independently and 76% of returned samples were analysable,

    Read in the Library

  2. To Convert or Not to Convert? Official IATDMCT Guideline on Converting Capillary-Blood Microsampling Concentrations to Plasma Concentrations

    Therapeutic Drug Monitoring · 2026 · Paywalled

    Guidance on capillary-to-plasma conversion: method- and analyte-specific clinical validation with paired capillary–venous

    Read in the Library

  3. Volumetric Absorptive Microsampling During Spaceflight for Analysis of Acetaminophen Pharmacokinetics in Whole Blood

    Journal of clinical pharmacology · 2026 · Open access

    In four crew members, capillary volumetric absorptive microsampling caught altered acetaminophen pharmacokinetics in flight: Cmax rose to 43,300 ng/mL from 9,110 before flight and clearance fell to 3,890 mL/h from 16,200, pointing to

    Read in the Library

All 1,149 in the OpenSampling Library

Urine

  1. Diagnostic Performance of HPV Testing Using Self-Collected Urine and Vaginal Samples for Detecting Cervical Precancer or Worse: A Meta-Analysis

    The journal of obstetrics and gynaecology research · 2026 · Paywalled

    This meta-analysis found that HPV testing using self-collected vaginal and urine samples showed sensitivities of 88.6% and 81% for detecting cervical precancer. Using a standardised device for first-void urine increased sensitivity to 86.6%, supporting decentralised

    Read in the Library

  2. Evaluating DNA methylation markers and extended HPV genotyping in first-void urine for detecting high-grade cervical lesions in HPV-positive women: a cross-sectional study

    BMC medicine · 2026 · Open access

    DNA methylation markers in first-void urine effectively detect high-grade cervical lesions in HPV-positive women, with results similar to clinician-collected samples in those over 30. This enables reliable cervical cancer screening using self-collected urine,

    Read in the Library

  3. Comparative efficacy, feasibility and acceptability of HPV DNA testing on first-void urine versus self-collected vaginal samples: a real-world study in a resource-limited setting

    BMJ global health · 2026 · Open access

    A study of 2500 women found 99.0% agreement between first-void urine and vaginal self-sampling for HPV detection using Cobas4800, with 98.1% of participants preferring urine. Although conducted in a resource-limited setting which may limit generalisability, these

    Read in the Library

All 488 in the OpenSampling Library

Saliva

  1. Comparison of self-collected oral swabs for supragingival microbiome characterization using 16S rRNA gene amplicon sequencing

    Journal of microbiological methods · 2026 · Paywalled

    Participants preferred the Omnigene and Zymo oral swabs for comfort and ease of use, whilst the Omnigene device yielded the highest median bacterial DNA concentration compared to the other devices. The results indicate that the choice of self-collection device impacts

    Read in the Library

  2. Long-term stability at -80°C of oral wash and saliva samples for microbiome analyses

    Microbiology spectrum · 2026 · Paywalled

    Saliva samples collected using the OMNIgene ORAL device and oral wash samples remain stable for microbiome diversity and relative abundance analyses for up to five years when stored at -80°C. This supports the use of these self-collection methods for

    Read in the Library

  3. Clinical validation of a patient-friendly saliva microsampling approach to monitor perampanel levels in people with epilepsy

    Epilepsia · 2026 · Paywalled

    A prospective study of eleven adults with epilepsy found that saliva microsampling using VAMS showed excellent agreement with conventional liquid saliva for perampanel quantification, with a mean bias of -0.126 ng/mL. This supports analytical equivalence for decentralised

    Read in the Library

All 411 in the OpenSampling Library

Stool

  1. Detection of Cryptosporidium hominis by clinical metagenomics in stool samples from an outbreak of diarrhoea among British military personnel in Kenya

    BMJ military health · 2026 · Paywalled

    A study limited by sample size found OMNIgene GUT tubes preserved Cryptosporidium DNA better than DNA Shield and FTA cards after year-long ambient storage. qPCR detected DNA in 23/24 OMNIgene, 21/24 DNA Shield, and 17/20 FTA samples, while metagenomics

    Read in the Library

  2. Gut Microbial Variations Associated With Proton Pump Inhibitor Use in the Boston Puerto Rican Health Study

    Pharmacology research & perspectives · 2026 · Open access

    Analysis of self-collected stool samples from 309 participants demonstrated that proton pump inhibitor use is significantly associated with an enrichment of Streptococcus species in the gut. This confirms the suitability of decentralised self-sampling for

    Read in the Library

  3. Perioperative Antibiotic Prophylaxis in Cesarean Section and the Maternal Gut Microbiome: Protocol for a Remote Observational Cohort Study

    JMIR research protocols · 2026 · Open access

    The study demonstrated the feasibility of a fully decentralised design by successfully recruiting 37 participants and completing follow-up for

    Read in the Library

All 108 in the OpenSampling Library

Neoteryx Mitra

  1. Clinical Validation of Venetoclax Volumetric Microsampling in Leukemia, with Whole-Blood-to-Plasma Conversion and Self-Microsampling Feasibility

    Clinical Pharmacokinetics · 2026 · Paywalled

    In AML and CLL, 91% of VAMS venetoclax results fell within 20% of plasma after individualised haematocrit correction; in home sampling, 18 of 21 patients self-sampled independently and 76% of returned samples were analysable,

    Read in the Library

  2. Volumetric Absorptive Microsampling During Spaceflight for Analysis of Acetaminophen Pharmacokinetics in Whole Blood

    Journal of clinical pharmacology · 2026 · Open access

    In four crew members, capillary volumetric absorptive microsampling caught altered acetaminophen pharmacokinetics in flight: Cmax rose to 43,300 ng/mL from 9,110 before flight and clearance fell to 3,890 mL/h from 16,200, pointing to

    Read in the Library

  3. Evaluation of hematocrit-adjusted conversion strategies for mycophenolic acid and tacrolimus monitoring using volumetric absorptive microsampling in lung and renal transplant recipients

    Journal of pharmacy & pharmaceutical sciences · 2026 · Open access

    In lung and renal transplant recipients, VAMS sampling with LC-MS/MS quantification of mycophenolic acid and tacrolimus showed good linearity and accuracy, and with a haematocrit-adjusted conversion formula achieved clinical agreement in most samples; tacrolimus did not require haematocrit correction. The approach is virtually painless and enables richer sampling for more

    Read in the Library

All 158 in the OpenSampling Library

Colli-Pee

  1. Evaluating DNA methylation markers and extended HPV genotyping in first-void urine for detecting high-grade cervical lesions in HPV-positive women: a cross-sectional study

    BMC medicine · 2026 · Open access

    DNA methylation markers in first-void urine effectively detect high-grade cervical lesions in HPV-positive women, with results similar to clinician-collected samples in those over 30. This enables reliable cervical cancer screening using self-collected urine,

    Read in the Library

  2. Agreement and Diagnostic Performance of Urinary HPV Testing Versus Clinician-Collected Cervico-Vaginal Sampling: A Prospective Cross-Sectional Study in a Romanian Cohort

    Medical sciences · 2026 · Paywalled

    Urinary HPV testing using first-void urine collected with the Colli-Pee device showed substantial agreement with clinician-collected cervico-vaginal sampling and near-equivalent negative predictive value, supporting its use as a clinically credible non-invasive entry point for

    Read in the Library

  3. The importance of first-void urine for assessing HPV-specific antibodies: A comparison with midstream urine

    Human vaccines & immunotherapeutics · 2026 · Open access

    First-void urine samples showed significantly higher detection rates of HPV-specific IgG antibodies compared to midstream urine, confirming the necessity of capturing the initial stream. The study found no significant difference between 10 mL and 20 mL collection

    Read in the Library

All 59 in the OpenSampling Library

OMNIgene

  1. Long-term stability at -80°C of oral wash and saliva samples for microbiome analyses

    Microbiology spectrum · 2026 · Paywalled

    Saliva samples collected using the OMNIgene ORAL device and oral wash samples remain stable for microbiome diversity and relative abundance analyses for up to five years when stored at -80°C. This supports the use of these self-collection methods for

    Read in the Library

  2. Detection of Cryptosporidium hominis by clinical metagenomics in stool samples from an outbreak of diarrhoea among British military personnel in Kenya

    BMJ military health · 2026 · Paywalled

    A study limited by sample size found OMNIgene GUT tubes preserved Cryptosporidium DNA better than DNA Shield and FTA cards after year-long ambient storage. qPCR detected DNA in 23/24 OMNIgene, 21/24 DNA Shield, and 17/20 FTA samples, while metagenomics

    Read in the Library

  3. Prospective evaluation of different faecal preservation media for travellers' diarrhoea diagnostic application with multiplex PCR BioFire FilmArray in resource-limited settings

    Journal of medical microbiology · 2025 · Open access

    In a field cohort of 60 adults with diarrhoea, OMNIgene 200 and DNA/RNA shield maintained high sensitivity and concordance with fresh samples for most pathogens, while FTA cards showed low sensitivity for STEC and poor specificity for Campylobacter. This supports the use of stabilised stool media for

    Read in the Library

All 40 in the OpenSampling Library

Oragene

  1. Collecting at-Home Biometric Measures for Longitudinal Research From the i3C: Feasibility and Acceptability Study

    JMIR human factors · 2025 · Open access

    In a one-week virtual home clinic with 134 participants, 86 per cent returned saliva and 84 per cent returned stool, and most components were feasible and acceptable despite device and logistical challenges. This supports decentralised, patient-centric

    Read in the Library

  2. Pediatric pharmacogenetics: profiling CYP2C8 polymorphisms at King Abdulaziz University Dental Clinic

    Drug metabolism and personalized therapy · 2024 · Paywalled

    Using the Oragene saliva device, this study identified elevated CYP2C8 allele frequencies in a Saudi paediatric cohort compared to other Asian populations, suggesting

    Read in the Library

  3. Genetic Risk, Neighborhood Characteristics, and Behavioral Difficulties Among African American Adolescents Living in Very Low-Income Neighborhoods

    Research on child and adolescent psychopathology · 2023 · Paywalled

    Using the Oragene Discovery 500 series for decentralised saliva collection in 524 African American adolescents, this study found that positive neighbourhood conditions relate to fewer behavioural difficulties, despite genetic risk. The authors note that most gene-environment studies of behaviour use

    Read in the Library

All 29 in the OpenSampling Library

BD Microtainer

  1. Prevalence of chlamydial, gonococcal and syphilis positivity by anatomical site and sex via self-collected biospecimens using at-home testing kits among a large and diverse cohort of men and women enrolled in the MACS/WIHS Combined Cohort Study (MWCCS) in the USA

    Sexually transmitted infections · 2026 · Paywalled

    The study found that self-collection of dried blood spots and other samples using at-home kits was a useful and cost-effective method for screening a large cohort for sexually transmitted infections outside a clinic. This demonstrates the feasibility of decentralised,

    Read in the Library

  2. Implementation of a Capillary Blood Self-Sampling Technique at Home for Monitoring of Patients With IBD

    Inflammatory bowel diseases · 2026 · Open access

    This proof-of-concept study demonstrated that patients with inflammatory bowel disease could successfully perform capillary blood microsampling at home with high analytical success rates, and

    Read in the Library

  3. At-home blood collection for clinical chemistry analyses in a kidney transplant population: a feasibility study

    Clinical chemistry and laboratory medicine · 2026 · Paywalled

    Although most kidney transplant recipients successfully collected capillary blood samples at home, haemolysis and transport conditions affected analyte stability. Agreement with venous sampling was acceptable for haemoglobin and

    Read in the Library

All 18 in the OpenSampling Library

YourBio TAP

  1. Venous-capillary blood agreement for routine chemistry analytes: effects of collection site and sample matrix

    Clinical chemistry and laboratory medicine · 2026 · Paywalled

    In 480 adults, capillary specimens from fingertip lancets or the TAP Micro Select device gave clinically comparable results to venous samples for 16 of 18 routine chemistry analytes; potassium and chloride were not interchangeable, and fingertip collection

    Read in the Library

  2. Comparing capillary blood collection technologies: patient experience, device performance and clinical accuracy

    Bioanalysis · 2025 · Paywalled

    A head-to-head of four upper-arm capillary devices, including TAP Micro Select, versus fingerstick and venous: experience and performance varied by device with none clearly

    Read in the Library

  3. Painless, needle-free capillary blood collection for fertility hormone monitoring

    Fertility and sterility · 2025 · Paywalled

    In 46 women under hormone monitoring at Columbia University Fertility Center, oestradiol, LH, FSH, progesterone and hCG measured on routine immunoassays from 400 to 600 microlitres of upper-arm capillary blood collected with TAP Micro Select agreed closely with paired venous results for every analyte, with correlation and concordance high throughout. It is the evidence that puts a self-collected

    Read in the Library

All 12 in the OpenSampling Library

ORAcollect

  1. Evaluation of Saliva as a Matrix for RT-PCR Analysis and Two Rapid Antigen Tests for the Detection of SARS-CoV-2

    Viruses · 2022 · Open access

    Saliva collected using the ORAcollect device demonstrated high specificity and negative predictive value for SARS-CoV-2 detection by RT-PCR, with some positive results suggesting an earlier detection window than nasopharyngeal swabs. Conversely, the evaluated rapid antigen tests showed

    Read in the Library

  2. Validation of saliva as an alternative specimen for detecting hereditary breast-cancer mutations by next-generation sequencing

    International J. Genomics · 2016 · Open access

    ORAcollect saliva matched blood at 97.9% overall variant concordance on a hereditary-cancer NGS panel, rising to 100% for protein-coding

    Read in the Library

  3. Association of Amelogenin with High Caries Experience in Indian Children

    The Journal of clinical pediatric dentistry · 2015 · Paywalled

    The study identified a mutation in the amelogenin gene from saliva samples collected using self-collection kits, which showed a statistically significant correlation with high caries experience in children. These results suggest that non-invasive genetic screening from

    Read in the Library

All 3 in the OpenSampling Library

Good to know.

How is the library assembled?

Curated by Humans Nexus from the peer-reviewed record, tagged by matrix, device and topic, and published as the OpenSampling Library. The site rebuilds whenever a paper is added or changed, so each page shows the subset that bears on it and the Library shows the whole.

Are the papers about Humans Nexus devices?

About the methods and the devices on the platform. A study is cited for what it tested, and another maker’s device is named only where the paper names it; the citations describe the collection formats and devices, not claims about any specific Humans Nexus assay, which is validated per analyte and per laboratory.

Why does a figure on a page differ from a maker’s claim?

A published figure is the study’s and a maker’s figure is the maker’s, and each page says which is which. Where the two differ, both are stated with their source, and neither is rounded to fit the other.

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