A simple way to modify selectivity of sodium sensitive electrodes by using organic conductive crystals

Pięk, Magdalena; Wojciechowska, Agnieszka; Fendrych, Katarzyna; Piech, Robert; Paczosa‐Bator, Beata

doi:10.1007/s11581-018-2600-9

Cited by 9 publications

(5 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As assessed according to the recommended IUPAC method, the sensor shows a low detection limit of 2.5 × 10 −6 m (Figure 5c), which agrees well with previously reported values. [ 77,78 ]…”

Section: Resultsmentioning

confidence: 99%

“…As assessed according to the recommended IUPAC method, the sensor shows a low detection limit of 2.5 × 10 −6 m (Figure 5c), which agrees well with previously reported values. [77,78] Furthermore, the repeatability of Na + sensing using the sensor was tested, as shown in Figure 5d, with repeated cycles of exposure to NaCl solutions with concentrations ranging from 10 −1 to 10 −4 m. The ion sensor showed reversible EMF signals with a negligible carry-over effect during repetitive measurements. To ensure durability, the potential drift of the ion sensor was measured in a 10 −2 m NaCl solution for 15 h, and a low potential drift of 0.13 mV h −1 was found, indicating good stability (Figure 5e).…”

Section: E Ementioning

confidence: 99%

See 1 more Smart Citation

Fluid‐Dynamics‐Processed Highly Stretchable, Conductive, and Printable Graphene Inks for Real‐Time Monitoring Sweat during Stretching Exercise

Park

Jeong

Son

et al. 2021

Adv Funct Materials

View full text Add to dashboard Cite

With the development of wearable electronics, the use of engineered functional inks with printing technologies has attracted attention owing to its potential for applications in low-cost, high-throughput, and high-performance devices. However, the improvement in conductivity and stretchability in the mass production of inks is still a challenge for practical use in wearable applications. Herein, a scalable and efficient fluid dynamics process that produces highly stretchable, conductive, and printable inks containing a high concentration of graphene is reported. The resulting inks, in which the uniform incorporation of exfoliated graphene flakes into a viscoelastic thermoplastic polyurethane is employed, facilitated the screen-printing process, resulting in high conductivity and excellent electromechanical stability. The electrochemical analysis of a stretchable sodium ion sensor based on a serpentine-structured pattern results in excellent electrochemical sensing performance even under strong fatigue tests performed by repeated stretching (300% strain) and release cycles. To demonstrate the practical use of the proposed stretchable conductor, on-body tests are carried out in real-time to monitor the sweat produced by a volunteer during simultaneous physical stretching and stationary cycling. These functional graphene inks have attractive performance and offer exciting potential for a wide range of flexible and wearable electronic applications.

show abstract

“…As assessed according to the recommended IUPAC method, the sensor shows a low detection limit of 2.5 × 10 −6 m (Figure 5c), which agrees well with previously reported values. [ 77,78 ]…”

Section: Resultsmentioning

confidence: 99%

Section: E Ementioning

confidence: 99%

Fluid‐Dynamics‐Processed Highly Stretchable, Conductive, and Printable Graphene Inks for Real‐Time Monitoring Sweat during Stretching Exercise

Park

Jeong

Son

et al. 2021

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…The ∆ V Dirac values of G–ISFET–ISM were considerably lower for K + and Ca 2+ ions compared to those for Na + ions, as shown in Figure 5 a. Because the ISM selectively allows passage of Na + ions through the membrane according to the selectivity coefficient, the interfering effects of K + and Ca 2+ greatly decrease in the presence of Na + ions in the electrolyte [ 13 , 42 ]. The results of the evaluation of G–ISFET–ISM with Ag/AgCl–RE with regards to interfering ions are shown in Supplementary Figure S5 .…”

Section: Resultsmentioning

confidence: 99%

Two–Dimensional Disposable Graphene Sensor to Detect Na+ Ions

Jeon

Gianti

et al. 2021

Nanomaterials

View full text Add to dashboard Cite

The monitoring of Na+ ions distributed in the body has been indirectly calculated by the detection of Na+ ions in urine. We fabricated a two–dimensional (2D) Na+ ion sensor using a graphene ion–sensitive field–effect transistor (G–ISFET) and used fluorinated graphene as a reference electrode (FG–RE). We integrated G–ISFET and FG on a printed circuit board (PCB) designed in the form of a secure digital (SD) card to fabricate a disposable Na+ ion sensor. The sensitivity of the PCB tip to Na+ ions was determined to be −55.4 mV/dec. The sensor exhibited good linearity despite the presence of interfering ions in the buffer solution. We expanded the evaluation of the PCB tip to real human patient urine samples. The PCB tip exhibited a sensitivity of −0.36 mV/mM and linearly detected Na+ ions in human patient urine without any dilution process. We expect that G–ISFET with FG–RE can be used to realize a disposable Na+ ion sensor by serving as an alternative to Ag/AgCl reference electrodes.

show abstract

“…İyon seçici elektrot çalışmalarında PVC membran elektrotlar klasik olarak en yaygın kullanılan iyon seçici elektrot çeşitleridir. Bu elektrotlarda membran yapısında elektrodun seçiciliğini ve duyarlılığını sağlayan en önemli bileşen iyonofor maddelerdir [7] ve bu türler membranın yapısına ilave edilerek kovalent olmayan etkileşimlerle membran yapısına tutturulur. Fakat elektrot kullanıldıkça membran bileşenlerinin zamanla ölçüm çözeltilerine akması ve membran/iyon elektron dönüştürücüsü ara yüzeyinde su tabakasının oluşmasıyla elektrotun kullanım ömrü ve performans özelliklerinde bozulmalar meydana gelmektedir [8,9].…”

Section: Introductionunclassified

Kil Esaslı Bütünüyle-Katı-Hal Kompozit Kurşun (II)-Seçici Potansiyometrik Elektrot

Doğan

Çağlar

Topçu

et al. 2022

Sinop Üniversitesi Fen Bilimleri Dergisi

View full text Add to dashboard Cite

Bentonit kili XRD, FTIR ve SEM-EDX teknikleriyle karakterize edildi. Karakterize edilen kil bütünüyle katı hal kompozit potansiyometrik elektrot yapımında iyonofor madde olarak kullanılmış ve kilin potansiyometrik uygulaması gerçekleştirilmiştir. Elektrodun Pb 2+ iyonuna karşı, diğer yaygın inorganik katyonlarla karşılaştırıldığında oldukça duyarlı ve seçici potansiyometrik bir cevap sergilediği gözlemlenmiştir. Membran optimizasyon çalışmaları neticesinde en iyi potansiyometrik performans özellikleri sergileyen bileşimin kütlece %65.0 grafit, %5.0 çok duvarlı karbon nanotüp, %20.0 iyonofor (bentonit) ve %10.0 parafin yağı olduğu belirlenmiştir. Pb 2+ seçici kompozit elektrodun 1.0×10 -5 ˗ 1.0×10 -1 M konsantrasyon aralığında doğrusal cevap sergilediği, doğrusal çalışma aralığında standart Pb 2+ çözeltilerine karşı her 10 katlık konsantrasyon değişiminde ortalama 31 mV potansiyel fark sergilediği gözlenmiştir. Elektrodun tayin sınırı 9.0×10 -6 M olarak hesaplanmıştır. Elektrodun cevap zamanının oldukça kısa olduğu (~5 s) potansiyometrik cevabın ve tekrarlanabilirliğinin de oldukça yüksek olduğu ortaya konmuştur.

show abstract

A simple way to modify selectivity of sodium sensitive electrodes by using organic conductive crystals

Cited by 9 publications

References 38 publications

Fluid‐Dynamics‐Processed Highly Stretchable, Conductive, and Printable Graphene Inks for Real‐Time Monitoring Sweat during Stretching Exercise

Fluid‐Dynamics‐Processed Highly Stretchable, Conductive, and Printable Graphene Inks for Real‐Time Monitoring Sweat during Stretching Exercise

Two–Dimensional Disposable Graphene Sensor to Detect Na+ Ions

Kil Esaslı Bütünüyle-Katı-Hal Kompozit Kurşun (II)-Seçici Potansiyometrik Elektrot

Contact Info

Product

Resources

About