Chemodosimeter functionalized diatomaceous earth particles for visual detection and removal of trace mercury ions from water

Patil, Pravin D.; Kigga, Madhuprasad; Bhat, Mahesh P.; Gatti, Manasa G.; Kabiri, Shervin; Altalhi, Tariq; Jung, Ho‐Young; Lošić, Dušan; Kurkuri, Mahaveer D.

doi:10.1016/j.cej.2017.06.138

Cited by 50 publications

(20 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The reaction was maintained at RT for 4 h. The D-APDMS was washed with DW and then dried in a 65 °C dry oven overnight. Two previously reported protocols [ 20 , 21 ] were considered to compare with the newly designed protocol. The process of creating a washed diatom before the D-APDMS treatment is the same.…”

Section: Methodsmentioning

confidence: 99%

“…The purpose of this study was to develop a technology that can detect pathogens with high sensitivity and process multiple samples simultaneously. Well-washed DE with micro-grid structure was treated with amine [ 19 ] by 3-aminopropylidimethylsilane (APDMS) [ 20 , 21 , 22 ] to use the DE for diagnostic purposes; the active DE surface supplies a large surface area for further sample enrichment. The positive charge of the amine-modified DE surface can bind with the negative charge of pathogen surface by electrostatic interaction [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Multi-Sample Preparation Assay for Isolation of Nucleic Acids Using Bio-Silica with Syringe Filters

et al. 2020

View full text Add to dashboard Cite

The spin-column system for the isolation of nucleic acids (NAs) from multiple samples presents the inconvenience of repeated experimentation, time-consumption, and the risk of contamination in the process of the spin-column exchange. Herein, we propose a convenient and universal assay that can be used to diagnose multiple pathogens using a multi-sample preparation assay. The multi-sample preparation assay combines a 96-well filter/membrane plate, a bio-micromaterial lattice-like micro amine-functional diatomaceous earth (D-APDMS), and homobifunctional imidoesters (HI) for the processing of pathogen enrichment and extraction for multiple samples simultaneously. The purity and quantity of the extracted NAs from pathogens (E. coli and Brucella) using the proposed assay is superior to that of the commercialized spin-column kit. The assay also does not require the replacement of several collection tubes during the reaction processing. For the multi-sample testing, we used as many as six samples simultaneously with the proposed assay. This assay can simultaneously separate up to 96 NAs from one plate, and the use of multichannel pipettes allows faster and simpler experimentation. Therefore, we believe it is a convenient and easy process, and can be easily integrated with other detection methods for clinical diagnostics.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multi-Sample Preparation Assay for Isolation of Nucleic Acids Using Bio-Silica with Syringe Filters

et al. 2020

View full text Add to dashboard Cite

show abstract

“…However, the fact that bare DE showed less adsorption capacity in the removal of organic dyes could be the reason for the smaller surface area [14] and less hydroxyl groups (-OH) on their surfaces. Therefore, the surface of DE needs further surface modification for better efficiency for the removal of dyes and other pollutants and has been explored by several groups [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Mg–Al-Layered Double Hydroxide (LDH) Modified Diatoms for Highly Efficient Removal of Congo Red from Aqueous Solution

et al. 2020

Self Cite

View full text Add to dashboard Cite

In this work, diatomaceous earth (DE) or diatoms are modified with Mg–Al-layered double hydroxide (DE-LDH) using the facile co-precipitation method to demonstrate their application for the removal of toxic dyes such as Congo Red (CR), which was used as a model. Field emission scanning electron microscopy (FE-SEM) characterization confirms the successful modification of diatom microcapsules structures, showing their surface decorated with LDH nano patches with sheet-like morphologies. The surface area of the DE was enhanced from 28 to 51 m2/g after modification with LDH. The adsorption studies showed that the maximum CR removal efficiency of DE and DE-LDH was ~15% and ~98%, respectively at pH 7, which is a significant improvement compared with unmodified DE. The maximum adsorption capacities of DE-LDH were improved ten times (305.8 mg/g) compared with the bare DE (23.2 mg/g), showing very high adsorption performances. The recyclability study of DE-LDH up to five cycles, after desorbing CR either by methanol or by NaOH, showed the efficient removal of the CR by up to three cycles via adsorption. The presented study suggests the promising application of DE-LDH as an effective material for application in the removal of CR from aqueous solutions for industrial wastewater treatment.

show abstract

“…Recently, a single receptor for naked eye detection of multiple ions is gaining more interest and there are few reports available on detection of multi ions using single receptor Among these, rhodamine derivatives are promising molecules for the detection and removal of toxic ions from aqueous media ,. These derivatives are highly favorable because of their excellent photophysical properties, such as high extinction coefficients, excellent quantum yields, great photostability, and relatively long emission wavelengths.…”

Section: Introductionmentioning

confidence: 99%

Real‐Time Probe for the Efficient Sensing of Inorganic Fluoride and Copper Ions in Aqueous Media

et al. 2018

Self Cite

View full text Add to dashboard Cite

A highly sensitive and efficient rhodamine 6G based probe (P3) was synthesized for the real‐time sensing of F− and Cu2+ ions. The probe P3 was able to show significant color change from brown to pink in the presence of F− and yellow to orange in presence of Cu2+ ions. The UV‐vis studies confirm that the probe P3 was able to detect F− and Cu2+ ions over other ions. Further, UV‐vis titration studies were carried out to understand the detection mechanism and stoichiometry between P3: F− and P3: Cu2+ ions. 1H‐NMR titration was performed to confirm the F− ion binding to probe P3, where, deprotonation of hydrazone proton (‐C=N‐NH‐) was observed. In addition, the limit of detection for P3:F− and P3:Cu2+ ions were found to be 4.02 μM and 1.64 μM respectively which is useful for practical applications. Lastly, probe P3 was used to detect and quantify the F− ions present in a commercially available mouthwash product. Furthermore, P3 was adsorbed on the surface of silica microsphere to detect Cu2+ ions. Interestingly, the material could visually detect 1 ppm of Cu2+ ions which is lower than the permissible limit.

show abstract

Chemodosimeter functionalized diatomaceous earth particles for visual detection and removal of trace mercury ions from water

Cited by 50 publications

References 40 publications

Multi-Sample Preparation Assay for Isolation of Nucleic Acids Using Bio-Silica with Syringe Filters

Multi-Sample Preparation Assay for Isolation of Nucleic Acids Using Bio-Silica with Syringe Filters

Mg–Al-Layered Double Hydroxide (LDH) Modified Diatoms for Highly Efficient Removal of Congo Red from Aqueous Solution

Real‐Time Probe for the Efficient Sensing of Inorganic Fluoride and Copper Ions in Aqueous Media

Contact Info

Product

Resources

About