1
|
Zhang M, Dalapati R, Shi J, Liao C, Tian Q, Wang C, Yang X, Chen S, Porter MD, Zang L. Fluorescent sensor based on solid-phase extraction with negligible depletion: A proof-of-concept study with amines as analytes. Anal Chim Acta 2023; 1245:340828. [PMID: 36737131 DOI: 10.1016/j.aca.2023.340828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 12/21/2022] [Accepted: 01/11/2023] [Indexed: 01/14/2023]
Abstract
This paper describes the development and proof-of-concept testing of an easy-to-use trace analysis technique, namely F-SPE, by coupling fluorescent sensor with solid phase extraction (SPE). F-SPE is a two-step methodology that concentrates an analyte from a liquid sample onto a fluorophore-modified membrane and measures the amount of analyte from the extent the extracted analyte quenches the emission of the fluorophore. By applying the principle of negligible depletion (ND) intrinsic to SPE, the procedure of F-SPE for analyzing a sample can be markedly simplified while maintaining the ability to detect analytes at low limits of detection (LOD). The merits of this approach are demonstrated by impregnating a SPE membrane with a perylene diimide (PDI) fluorophore, N,N'-di(nonyldecyl)-perylene-3,4,9,10-tetracarboxylic diimide (C9/9-PDI), for the low-level detection of organic amines (e.g., aniline) and amine-containing drugs (e.g., Kanamycin). The sensing mechanism is based on the donor-acceptor quenching of PDI by amines, which, when coupled with the concentrative nature of SPE, yields LODs for aniline and Kanamycin of 67 nM (∼6 ppb) and 32 nM (∼16 ppb), respectively.
Collapse
Affiliation(s)
- Miao Zhang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Shaanxi, Xi'an, 710021, China
| | - Rana Dalapati
- Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112, USA; Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT, 84112, USA
| | - Jiangfan Shi
- Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112, USA; Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT, 84112, USA
| | - Chenglong Liao
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Shaanxi, Xi'an, 710021, China
| | - Qingyun Tian
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Shaanxi, Xi'an, 710021, China
| | - Chuanyi Wang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Shaanxi, Xi'an, 710021, China
| | - Xiaomei Yang
- Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112, USA
| | - Shuai Chen
- Jiangxi Engineering Laboratory of Waterborne Coating, Jiangxi, Nanchang, 330013, China.
| | - Marc D Porter
- Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112, USA; Department of Chemical Engineering, University of Utah, Salt Lake City, UT, 84112, USA.
| | - Ling Zang
- Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84112, USA; Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT, 84112, USA.
| |
Collapse
|
2
|
Bhardwaj J, Ngo ND, Lee J, Jang J. High enrichment and near real-time quantification of airborne viruses using a wet-paper-based electrochemical immunosensor under an electrostatic field. JOURNAL OF HAZARDOUS MATERIALS 2023; 442:130006. [PMID: 36162308 DOI: 10.1016/j.jhazmat.2022.130006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
Conventional airborne virus measurement usually requires appreciable sampling and detection times. Viral aerosols should also be collected or prepared in a liquid medium whose volume typically ranges from milliliters to tens of milliliters; hence, many sampling and detection steps need to be taken with the unit horizontal or immobile. Moreover, viral aerosols need to be sufficiently enriched, which makes real-time monitoring difficult. Herein, we present a near real-time enrichment and quantification system of airborne viruses that consists of a wet-paper-based electrochemical immunosensor with a gel electrolyte and a modified electrostatic particle concentrator. A small amount of phosphate-buffered saline flowed on the electrode, which resulted in sensor electrodes that are barely wet (covered in a thin buffer film measuring several micrometers) to ensure antigen-antibody interaction and the removal of non-target particles on the electrode surface. This system ensures that airborne viruses are highly enriched on the working electrode of the immunosensor, and it is possible to measure the MS2 virus particle concentrations every 10 min for 60 min stably and selectively against non-target airborne viruses and bacteria at horizontal and tilted measurement configurations. This system thus has the potential to be used in the real-time mobile monitoring of airborne microorganisms.
Collapse
Affiliation(s)
- Jyoti Bhardwaj
- Sensors and Aerosols Laboratory, Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, the Republic of Korea
| | - Nhan Dinh Ngo
- Sensors and Aerosols Laboratory, Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, the Republic of Korea
| | - Jaegil Lee
- Sensors and Aerosols Laboratory, Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, the Republic of Korea
| | - Jaesung Jang
- Sensors and Aerosols Laboratory, Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, the Republic of Korea; Department of Biomedical Engineering & Department of Urban and Environmental Engineering, UNIST, Ulsan 44919, the Republic of Korea.
| |
Collapse
|
3
|
Lin CJ, Lin YH, Chiang TC, Yu CY. Synthesis of the polymers containing norbornene and tetraphenylethene by ring-opening metathesis polymerization and their structural characterization, aggregation-induced emission and aniline detection. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
4
|
Gusso SL, Prado LB, Ximim Gavim AE, Deus JFD, Foti L, Mohd Yusoff ARB, da Silva WJ, Rodrigues PC, Macedo AG. A Disposable and Noncontact Paper Breathalyzer Based on Small Conjugated Molecules/Carbon Nanotubes Electrodes. PHYSICA STATUS SOLIDI (A) 2022; 219. [DOI: 10.1002/pssa.202100808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Indexed: 09/02/2023]
Abstract
Herein, N,N′‐di(decyl)‐3,4,9,10‐perylenebis(dicarboximide) (PDIC10) is first functionalized by hydrothermal synthesis method and processed onto single‐walled carbon nanotube (SWCN) electrodes and paper substrate. The PDC10/SWCN/paper device can be applied as a noncontact breathalyzer to detect and quantify ethanol alcohol and determine equivalent blood alcohol concentration (BAC). The sensing mechanism increases the electrical resistance upon ethanol alcohol (EtOH) exposition. This device allows the quantification of BAC values from 0.01% to 0.2%, with ΔR (%) of 2–25% in this range, with adequate stability operating in cycles.
Collapse
Affiliation(s)
- Sara Luiza Gusso
- PPGFA Universidade Tecnológica Federal do Paraná Curitiba 80230-901 Brazil
| | | | | | | | - Leonardo Foti
- Instituto Carlos Chagas/FIOCRUZ Curitiba 81310-020 Brazil
| | | | - Wilson José da Silva
- PPGFA Universidade Tecnológica Federal do Paraná Curitiba 80230-901 Brazil
- CPGEI Universidade Tecnológica Federal do Paraná Curitiba 80230-901 Brazil
| | | | | |
Collapse
|
5
|
A MEMS µ-Preconcentrator Employing a Carbon Molecular Sieve Membrane for Highly Volatile Organic Compound Sampling. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9050104] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This paper presents the synthesis and evaluation of a carbon molecular sieve membrane (CMSM) grown inside a MEMS-fabricated μ-preconcentrator for sampling highly volatile organic compounds. An array of µ-pillars measuring 100 µm in diameter and 250 µm in height were fabricated inside a microfluidic channel to increase the attaching surface for the CMSM. The surface area of the CMSM was measured as high as 899 m2/g. A GC peak amplification factor >2 × 104 was demonstrated with gaseous ethyl acetate. Up to 1.4 L of gaseous ethanol at the 100 ppb level could be concentrated without exceeding the capacity of this microchip device. Sharp desorption chromatographic peaks (<3.5 s) were obtained while using this device directly as a GC injector. Less volatile compounds such as gaseous toluene, m-xylene, and mesitylene appeared to be adsorbed strongly on CMSM, showing a memory effect. Sampling parameters such as sample volatilities, sampling capacities, and compound residual issues were empirically determined and discussed.
Collapse
|