ArticleScientific reports2022
Detection of environmental pollutant cadmium in water using a visual bacterial biosensor.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Visual detection of collective highly toxic metals in water by a handheld whole-cell biosensing detector: From circuit to field.iScience · 2026Article
- Tetramethylbenzidine loaded PVA nanofibers strip for visual detection of hydrogen peroxide via CuJournal of biological engineering · 2026Article
- Hyperspectral reporters for long-distance and wide-area detection of gene expression in living bacteria.Nature biotechnology · 2026Article
- Metagenomic Insights Into the Role of Gut Microbes in the Defensive Ink "Tsunabi" of Physeteroid Whales.Ecology and evolution · 2025Article
- Fluorescent silver hydrosol for the dual fluorometric sensing of gallic acid and CdRSC advances · 2025Article
- Challenges of Using Whole-Cell Bioreporter for Assessment of Heavy Metal Bioavailability in Soil/Sediment.Biosensors · 2025Review
- Heavy Metal-Gut Microbiota Interactions: Probiotics Modulation and Biosensors Detection.Biosensors · 2025Review
- Advancing cadmium bioremediation: future directions for CadR display strategies.Frontiers in bioengineering and biotechnology · 2025Article
- Establishment of a Rapid Detection Method for Cadmium Ions via a Specific Cadmium Chelator N-(2-Acetamido)-Iminodiacetic Acid Screened by a Novel Biological Method.Foods (Basel, Switzerland) · 2024Article
- Biosynthesis of Indigo Dyes and Their Application in Green Chemical and Visual Biosensing for Heavy Metals.ACS omega · 2024Article
- Adsorptive removal of heavy metals from wastewater using Cobalt-diphenylamine (Co-DPA) complex.BMC chemistry · 2024Article
- Ecological features of trace elements tolerant microbes isolated from sewage sludge of urban wastewater treatment plant.Stress biology · 2024Article
- Improvement of a highly sensitive and specific whole-cell biosensor by adding a positive feedback amplifier.Synthetic and systems biotechnology · 2023Article
- Genome sequencing and multifaceted taxonomic analysis of novel strains of violacein-producing bacteria and non-violacein-producing close relatives.Microbial genomics · 2023Article
- Pb(II)-inducible proviolacein biosynthesis enables a dual-color biosensor toward environmental lead.Frontiers in microbiology · 2023Article
- Metabolic engineering of the carotenoid biosynthetic pathway toward a specific and sensitive inorganic mercury biosensor.RSC advances · 2022Article
- Anthocyanin biosynthetic pathway switched by metalloregulator PbrR to enable a biosensor for the detection of lead toxicity.Frontiers in microbiology · 2022Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cadmium (Cd) contamination in water and soil is considered an environmental pollutant. Food crops can absorb and accumulate bioavailable Cd. Continuous monitoring of Cd levels in the environment can minimize exposure and harm to humans. Visual pigments have been demonstrated to have great potential in the development of minimal-equipment biosensors. In the present study, a metabolically engineered bacterium was employed to produce blue-purple pigment violacein responsive to toxic Cd(II). The high stability of the bisindole pigment contributed to determining the violacein at wavelengths of 578 nm. Visual and quantifiable signals could be captured after a 1.5-h Cd(II) exposure. This novel biosensor showed significantly stronger responses to Cd(II) than to other heavy metals including Pb(II), Zn(II), and Hg(II). A significant increase in pigment signal was found to respond to as low as 0.049 μM Cd(II). The naked eye can detect the color change when violacein-based biosensor is exposed to 25 μM Cd(II). A high-throughput method for rapid determination of soluble Cd(II) in environmental water was developed using a colorimetric microplate.
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