Triethylamine-controlled Cu-BTC frameworks for electrochemical sensing fish freshness

Li, Caoling; Hao, Junxing; Wu, Kangbing

doi:10.1016/j.aca.2019.07.064

Cited by 36 publications

(15 citation statements)

References 40 publications

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“…The addition of as low as 1.3 ppm of DMPP induces a variation of the chemoresistance by 10%. 6 Fish freshness can be assessed using a series of biomarkers [29][30][31][32][33] such as xanthine employing biosensors, [30][31][32][33][34][35][36][37][38][39] but also by detecting total volatile basic amines (TVB) such as ammonia, methylamine, dimethylamine and trimethylamine, that result from bacterial spoilage, enzymatic lysis and deamination of seafood. 40 Developing graphene-based sensors with chemical functionalities represents a promising path in this direction since functionalized graphene can lead to a favourable interaction with specic VOCs thanks to the matching chemical characteristics that may result in highly sensitive and specic sensors.…”

Section: Introductionmentioning

confidence: 99%

Pristine graphene covalent functionalization with aromatic aziridines and their application in the sensing of volatile amines – an ab initio investigation

et al. 2021

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Section: Introductionmentioning

confidence: 99%

Pristine graphene covalent functionalization with aromatic aziridines and their application in the sensing of volatile amines – an ab initio investigation

et al. 2021

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“…The characteristic peaks at 11.52, 13.29, 14.82, 16.38, 17.34, 18.95, 20.08, 24.01, 25.83, 29.18, 35.04, and 39.02° in the XRD pattern of Cu-BTC corresponded to the (222), (400), (420), (422), (511), (440), (442), (551), (731), (751), (773), and (882) planes, respectively, and were consistent with the peaks of simulated Cu-BTC, , and the Cu-BTC simulated pattern details are obtained from RASPA2. This result demonstrates the crystal system: cubic, space group: Fm 3̅ m , and space group number: 225 and calculated lattice constants a = b = c = 26.343 Å and α = β = γ = 90° of Cu-BTC .…”

Section: Resultsmentioning

confidence: 98%

MOF-Derived Cu-BTC Nanowire-Embedded 2D Leaf-like Structured ZIF Composite-Based Aptamer Sensors for Real-Time In Vivo Insulin Monitoring

Sakthivel

Lin

Duann

et al. 2022

ACS Appl. Mater. Interfaces

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Insulin, which is a hormone produced by the β-cells of the pancreas, regulates the glucose levels in the blood and can transport glucose into cells to produce glycogen or triglycerides. Insulin deficiency can lead to hyperglycemia and diabetes. Therefore, insulin detection is critical in clinical diagnosis. In this study, disposable Au electrodes were modified with copper(II) benzene-1,3,5-tricarboxylate (Cu-BTC)/leaf-like zeolitic imidazolate framework (ZIF-L) for insulin detection. The aptamers are easily immobilized on the Cu-BTC/ZIF-L composite by physical adsorption and facilitated the specific interaction between aptamers and insulin. The Cu-BTC/ZIF-L composite-based aptasensor presented a wide linear insulin detection range (0.1 pM to 5 μM) and a low limit of detection of 0.027 pM. In addition, the aptasensor displayed high specificity, good reproducibility and stability, and favorable practicability in human serum samples. For the in vivo tests, Cu-BTC/ZIF-L composite-modified electrodes were implanted in non-diabetic and diabetic mice, and insulin was quantified using electrochemical and enzyme-linked immunosorbent assay methods.

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“…1372 cm À1 (n COOH ), 1475 cm À1 (n C-O 2 ), 1539 cm À1 (n C-O 2 ), and 1603 cm À1 (n C=C ). [29] Thus, the rich array of vibrational modes of the chemical bonds in MIL-100(Fe) can be clearly distinguished from the bands of the target toluene molecule. These results demonstrate that MIL-100(Fe) can function as an active SERS platform in the absence of noble metals.…”

Section: Resultsmentioning

confidence: 99%

SERS‐Active MIL‐100(Fe) Sensory Array for Ultrasensitive and Multiplex Detection of VOCs

Zhong

Xie

et al. 2020

Angewandte Chemie

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The application of metal-organic frameworks (MOFs) as SERS-active platforms in multiplex volatile organic compounds (VOCs) detection is still unexplored. Herein, we demonstrate that MIL-100 (Fe) serves as an ideal SERS substrate for the detection of VOCs. The limit of detection (LOD) of MIL-100(Fe) for toluene sensing can reach 2.5 ppm, and can be even further decreased to 0.48 ppb level when "hot spots" in between Au nanoparticles are employed onto MIL-100 (Fe) substrate, resulting in an enhancement factor of 10 10. Additionally, we show that MIL-100(Fe) substrate has a unique "sensor array" property allowing multiplex VOCs detection, with great modifiability and expandability by doping with foreign metal elements. Finally, the MIL-100(Fe) platform is utilized to simultaneously detect the different gaseous indicators of lung cancer with a ppm detection limit, demonstrating its high potential for early diagnosis of lung cancer in vivo.

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Triethylamine-controlled Cu-BTC frameworks for electrochemical sensing fish freshness

Cited by 36 publications

References 40 publications

Pristine graphene covalent functionalization with aromatic aziridines and their application in the sensing of volatile amines – an ab initio investigation

Pristine graphene covalent functionalization with aromatic aziridines and their application in the sensing of volatile amines – an ab initio investigation

MOF-Derived Cu-BTC Nanowire-Embedded 2D Leaf-like Structured ZIF Composite-Based Aptamer Sensors for Real-Time In Vivo Insulin Monitoring

SERS‐Active MIL‐100(Fe) Sensory Array for Ultrasensitive and Multiplex Detection of VOCs

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