Construction of highly efficient non-enzymatic glucose sensors based on micro-spherical Ni-metal-organic frameworks

2020 ◽  
Vol 13 (05) ◽  
pp. 2050022 ◽  
Author(s):  
Junli Chen ◽  
Haoyong Yin ◽  
Shumin Zhao ◽  
Jianying Gong ◽  
Zhenguo Ji ◽  
...  
Keyword(s):  
High Performance ◽  
Oxidation Process ◽  
Metal Organic Frameworks ◽  
Glucose Sensing ◽  
Glucose Sensors ◽  
Serum Analysis ◽  
Glucose Detection ◽  
Highly Efficient ◽  
Efficient Charge ◽  
Metal Organic

The Ni-metal-organic frameworks microspheres (Ni-BTC) were prepared and used directly to construct non-enzymatic glucose sensors. The Ni-BTC sensors displayed much higher glucose sensing performance than that of Ni-MOFs derived NiO, which showed wide detection regions of 5–3000[Formula: see text][Formula: see text]M and 3500–6000[Formula: see text][Formula: see text]M with the sensitivity of 932.68[Formula: see text][Formula: see text]A[Formula: see text]mM[Formula: see text]cm[Formula: see text] and 273.04[Formula: see text][Formula: see text]A[Formula: see text]mM[Formula: see text]cm[Formula: see text], respectively. Moreover, it also displayed good selectivity and favorable sensing feasibility for serum analysis. The high performance of the non-enzymatic glucose detection on Ni-BTC may be due to the highly efficient charge transfers during the electrocatalytic glucose oxidation process.

A high-performance Co-MOF non-enzymatic electrochemical sensor for glucose detection

2021 ◽  
Author(s):  
Zhen-Zhen Ma ◽  
Yao Ma ◽  
Bing Liu ◽  
Ling Xu ◽  
Huan Jiao
Keyword(s):  
Electrochemical Sensor ◽  
Terephthalic Acid ◽  
High Performance ◽  
Metal Organic Frameworks ◽  
Deep Eutectic Solvents ◽  
Cobalt Metal ◽  
Glucose Detection ◽  
Metal Organic

Two cobalt metal-organic frameworks (Co-MOFs), [Ch]2[Co3(BDC)3Cl2] (1) and [Ch]2[Co3(BDC)4]·2DMU (2) (Ch+ = choline cation; H2BDC = terephthalic acid; DMU = 1,3-dimethylurea), were prepared through ionothermal reactions with deep eutectic solvents...

Tunable hierarchical surfaces of CuO derived from metal–organic frameworks for non-enzymatic glucose sensing

2020 ◽  
Vol 7 (7) ◽  
pp. 1512-1525 ◽  
Author(s):  
Yumei Luo ◽  
Qingyong Wang ◽  
Jinghua Li ◽  
Fen Xu ◽  
Lixian Sun ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Metal Organic Frameworks ◽  
Glucose Sensing ◽  
Glucose Sensors ◽  
Non Invasive ◽  
Metal Organic ◽  
Sensing Performance

A facile thermal treatment is conducted to prepare nanosphere stacking CuO derived from Cu-MOF, which achieves good glucose sensing performance and is expected to be effective for developing non-enzyme and non-invasive glucose sensors.

Structural Design of Mn-Metal–Organic Frameworks toward Highly Efficient Solvent-Free Cycloaddition of CO2

2021 ◽  
Author(s):  
Haonan Lin ◽  
Cheng-Hua Deng ◽  
Xiaohang Qiu ◽  
Xiao Liu ◽  
Jian-Gong Ma ◽  
...  
Keyword(s):  
Structural Design ◽  
Metal Organic Frameworks ◽  
Solvent Free ◽  
Highly Efficient ◽  
Metal Organic

Rational strategies for proton-conductive metal–organic frameworks

2021 ◽  
Author(s):  
Dae-Woon Lim ◽  
Hiroshi Kitagawa
Keyword(s):  
Solid State ◽  
Potential Application ◽  
High Performance ◽  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Solid State Electrolytes

Since the transition of energy platforms, the proton-conductive metal–organic frameworks (MOFs) exhibiting high performance have been extensively investigated with rational strategies for their potential application in solid-state electrolytes.

scholarly journals Carbon Nanodots as a Potential Transport Layer for Boosting Performance of All-Inorganic Perovskite Nanocrystals-based Photodetector

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 717
Author(s):  
Hassan Algadi ◽  
Ahmad Umar ◽  
Hasan Albargi ◽  
Turki Alsuwian ◽  
Sotirios Baskoutas
Keyword(s):  
Charge Separation ◽  
High Performance ◽  
Band Alignment ◽  
Transport Layer ◽  
Carbon Nanodots ◽  
Separation Mechanism ◽  
Perovskite Layer ◽  
Inorganic Perovskite ◽  
Highly Efficient ◽  
Efficient Charge

A low-cost and simple drop-casting method was used to fabricate a carbon nanodot (C-dot)/all-inorganic perovskite (CsPbBr3) nanosheet bilayer heterojunction photodetector on a SiO2/Si substrate. The C-dot/perovskite bilayer heterojunction photodetector shows a high performance with a responsivity (R) of 1.09 A/W, almost five times higher than that of a CsPbBr3-based photodetector (0.21 A/W). In addition, the hybrid photodetector exhibits a fast response speed of 1.318/1.342 µs and a highly stable photocurrent of 6.97 µA at 10 V bias voltage. These figures of merits are comparable with, or much better than, most reported perovskite heterojunction photodetectors. UV–Vis absorption and photoluminescent spectra measurements reveal that the C-dot/perovskite bilayer heterojunction has a band gap similar to the pure perovskite layer, confirming that the absorption and emission in the bilayer heterojunction is dominated by the top layer of the perovskite. Moreover, the emission intensity of the C-dot/perovskite bilayer heterojunction is less than that of the pure perovskite layer, indicating that a significant number of charges were extracted by the C-dot layer. The studied band alignment of the C-dots and perovskites in the dark and under emission reveals that the photodetector has a highly efficient charge separation mechanism at the C-dot/perovskite interface, where the recombination rate between photogenerated electrons and holes is significantly reduced. This highly efficient charge separation mechanism is the main reason behind the enhanced performance of the C-dot/perovskite bilayer heterojunction photodetector.

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