Evidence map›Paper›PMID 21807191›Full record

ArticleTalanta2011

Highly sensitive disposable nucleic acid biosensors for direct bioelectronic detection in raw biological samples.

Filiz Kuralay, Susana Campuzano, David A Haake, Joseph Wang

Abstract read
In one paragraph

Article in Talanta, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.7field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 52 citations in OpenAlex.

  1. Strategic Detection ofBiosensors · 2025
    Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Antifouling (Bio)materials for Electrochemical (Bio)sensing.International journal of molecular sciences · 2019
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Bacterial detection & identification using electrochemical sensors.Journal of visualized experiments : JoVE · 2013
    Article
  14. Article
  15. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Filiz KuralayDepartment of Nanoengineering, University of California San Diego, La Jolla, CA 92093, USA.
Susana Campuzano
David A Haake
Joseph Wang
University of California, San Diego · USVA Greater Los Angeles Healthcare System · US

Funding

Sensor Technology for Rapid Microbial Identification and Susceptibility TestingU01AI075565 · NIAID · BRENTWOOD BIOMEDICAL RESEARCH INSTITUTE · PI HAAKE, DAVID A · 2007 to 2011
$3.3M
NIAID NIH HHS U01 AI075565
6 · The paper itself

Abstract

The development of rapid, low-cost and reliable diagnostic methods is crucial for the identification and treatment of many diseases. Screen-printed gold electrodes (Au/SPEs), coated with a ternary monolayer interface, involving hexanedithiol (HDT), a specific thiolated capture probe (SHCP), and 6-mercapto-1 hexanol (MCH) (SHCP/HDT/MCH) are shown here to offer direct and sensitive detection of nucleic acid hybridization events in untreated raw biological samples (serum, urine and crude bacterial lysate solutions). The composition of the ternary monolayer was modified and tailored to the surface of the Au/SPE. The resulting SHCP/HDT/MCH monolayer has demonstrated to be extremely useful for enhancing the performance of disposable nucleic acid sensors based on screen-printed electrodes. Compared to common SHCP/MCH binary interfaces, the new ternary self-assembled monolayer (SAM) resulted in a 10-fold improvement in the signal (S)-to-noise (N) ratio (S/N) for 1 nM target DNA. The SHCP/HDT/MCH-modified Au/SPEs allowed the direct quantification of the target DNA down to 25 pM (0.25 fmol) and 100 pM (1 fmol) in undiluted/untreated serum and urine samples, respectively, and of 16S rRNA Escherichia coli (E. coli) corresponding to 3000 CFU μL(-1) in raw cell lysate samples. The new SAM-coated screen-printed electrodes also displayed favorable non-fouling properties after a 24h exposure to raw human serum and urine samples, offering great promise as cost-effective nucleic acid sensors for a wide range of decentralized genetic tests.

Indexed as

Biosensing TechniquesCost-Benefit AnalysisDNAElectrochemical TechniquesElectrodesEscherichia coliGoldHexanolsHumansNucleic AcidsReproducibility of ResultsRNA, BacterialRNA, Ribosomal, 16SSulfhydryl Compounds1,6-hexanedithiol6-mercapto-1-hexanolDNAGoldHexanolsNucleic AcidsRNA, BacterialRNA, Ribosomal, 16SSulfhydryl Compounds

Identifiers

PMID21807191
PMCPMC4386838
OpenAlexW2101099832

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.