Detection of Hydrogen Peroxide and Glucose with a Novel Fluorescence Probe by the Enzymatic Reaction of Amino Functionalized MOFs Nanosheets

2021 ◽  
Author(s):  
Jing Chen ◽  
Yali Xu ◽  
Fanghong Xu ◽  
Qian Zhang ◽  
Shuying Li
Keyword(s):  
Hydrogen Peroxide ◽  
Specific Surface ◽  
Water Solubility ◽  
Fluorescence Probe ◽  
Enzymatic Reaction ◽  
Adsorption Properties ◽  
Two Dimensional ◽  
Large Specific Surface Area ◽  
Good Ability ◽  
High Fluorescence

Amino-functionalized two-dimensional (2D) MOFs have great potential in biosensors due to their excellent water solubility, high fluorescence, large specific surface area, good adsorption properties of MOFs and good ability to...

Two-Dimensional Transition Metal Borides as High Activity and Selectivity Catalysts for Ammonia Synthesis

Nanoscale ◽  
2021 ◽  
Author(s):  
Haona Zhang ◽  
Shuhua Wang ◽  
Hao Wang ◽  
Baibiao Huang ◽  
Shuping Dong ◽  
...  
Keyword(s):  
Transition Metal ◽  
Specific Surface ◽  
High Activity ◽  
Surface Area ◽  
Active Site ◽  
Ammonia Synthesis ◽  
Two Dimensional ◽  
Large Specific Surface Area ◽  
Site Density ◽  
Metal Borides

In comparison to defect/doping induced activity in materials, transition metal borides with exposed metal atom, large specific surface area and high active site density show advantages as durable and efficient...

Guanidine sulfate-assisted synthesis of hexagonal WO3 nanoparticles with enhanced adsorption properties

2015 ◽  
Vol 44 (16) ◽  
pp. 7419-7427 ◽  
Author(s):  
Wanjun Mu ◽  
Mei Li ◽  
Xingliang Li ◽  
Zongping Ma ◽  
Rui Zhang ◽  
...  
Keyword(s):  
Specific Surface ◽  
Adsorption Capacity ◽  
Surface Area ◽  
Functional Groups ◽  
Specific Surface Area ◽  
Adsorption Properties ◽  
Large Specific Surface Area ◽  
Enhanced Adsorption

The hexagonal WO3 nanowires prepared with the assistance of C2H10N·H2SO4 possess a large specific surface area and numerous adsorption functional groups, consequently improving the Sr2+ adsorption capacity considerably.

3D bioprinting of cell-laden electroconductive MXene nanocomposite bioinks

Nanoscale ◽  
2020 ◽  
Vol 12 (30) ◽  
pp. 16069-16080 ◽  
Author(s):  
Hadi Rastin ◽  
Bingyang Zhang ◽  
Arash Mazinani ◽  
Kamrul Hassan ◽  
Jingxiu Bi ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Transition Metal ◽  
Specific Surface ◽  
3D Bioprinting ◽  
Two Dimensional ◽  
Large Specific Surface Area ◽  
Metal Carbides ◽  
High Electrical Conductivity ◽  
Transition Metal Carbides ◽  
New Family

MXenes, a new family of two-dimensional transition metal carbides/nitrides, have been exploited in 3D bioprinting owing to their outstanding properties such as a large specific surface area, high electrical conductivity, and biodegradability.

scholarly journals Synthesis of two-dimensional lamellar porous carbon from fluorene for supercapacitors

2020 ◽  
Author(s):  
Xiaoting Wang ◽  
Fangfang Huang ◽  
Chen Zhang ◽  
Moxin Yu
Keyword(s):  
Aspect Ratio ◽  
Specific Surface ◽  
Electrode Material ◽  
Porous Carbon ◽  
Koh Activation ◽  
Lateral Size ◽  
Two Dimensional ◽  
Large Specific Surface Area ◽  
Rate Performance ◽  
Cycle Stability

Abstract Lamellar porous carbons (LPCs) were prepared from fluorene with Mg(OH)2 as template precursors coupled with KOH activation. The as-prepared LPCs feature a large flaky structure containing a large number of micropores and mesopores. This unique structure have a big lateral size/thickness aspect ratio and a large specific surface area of 1879 m2 g− 1. As an electrode material, the LPC shows a high capacitance of 231 F g− 1 at 0.05 A g− 1, excellent rate performance of 173 F g− 1 at 100 A g− 1, and good cycle stability with 95.93% capacitance retention after 10,000 cycles in 6 M KOH electrolyte.

Selective detection of carbon monoxide (CO) gas by reduced graphene oxide (rGO) at room temperature

RSC Advances ◽  
2016 ◽  
Vol 6 (53) ◽  
pp. 47337-47348 ◽  
Author(s):  
Dipankar Panda ◽  
Anupam Nandi ◽  
Swapan K. Datta ◽  
Hiranmay Saha ◽  
Sanhita Majumdar
Keyword(s):  
Carbon Monoxide ◽  
Graphene Oxide ◽  
Specific Surface ◽  
Gas Sensors ◽  
Room Temperature ◽  
Selective Detection ◽  
Two Dimensional ◽  
Large Specific Surface Area ◽  
Reduced Graphene ◽  
Co Gas

Graphene materials have been widely explored for fabrication of gas sensors because of their atom-thick two-dimensional conjugated structures, high conductivity and large specific surface area.

Solution-gated transistors of two-dimensional materials for chemical and biological sensors: status and challenges

Nanoscale ◽  
2020 ◽  
Vol 12 (21) ◽  
pp. 11364-11394 ◽  
Author(s):  
Qin Fan ◽  
Lude Wang ◽  
Duo Xu ◽  
Yanhong Duo ◽  
Jie Gao ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Biological Sensors ◽  
Two Dimensional ◽  
Large Specific Surface Area ◽  
Biochemical Sensing ◽  
Two Dimensional Materials ◽  
Chemical And Biological Sensors

Two-dimensional materials are widely used in solution-gated transistors for biochemical sensing due to their excellent properties and large specific surface area.

One-pot synthesis of Fe2O3/Y2O3@TNS for enhanced photocatalytic and adsorption properties

2020 ◽  
Vol 44 (38) ◽  
pp. 16370-16383
Author(s):  
Pei Wu ◽  
Xiaona Zhao ◽  
Chunhe Li ◽  
Minchen Yang ◽  
Guojun Li ◽  
...  
Keyword(s):  
Specific Surface ◽  
Hydrothermal Method ◽  
Surface Area ◽  
Specific Surface Area ◽  
Adsorption Properties ◽  
Large Specific Surface Area ◽  
Laminar Structure ◽  
One Pot ◽  
One Pot Synthesis

TiO2-based nanosheets (TNS) modified with Fe2O3 and Y2O3 particles (Fe2O3/Y2O3@TNS), possessing a laminar structure with large specific surface area of 382 m2 g−1, were synthesized via a one-pot hydrothermal method.

Enzymatic colorimetry of lecithin and sphingomyelin in aqueous solution.

1983 ◽  
Vol 29 (8) ◽  
pp. 1513-1517 ◽  
Author(s):  
M W McGowan ◽  
J D Artiss ◽  
B Zak
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Peroxide ◽  
Amniotic Fluid ◽  
Enzymatic Reaction ◽  
Detergent Solution ◽  
Enzymatic Determination ◽  
Red Color ◽  
Hydrolysis Of ◽  
Zwitterionic Detergent

Abstract A procedure for the enzymatic determination of lecithin and sphingomyelin in aqueous solution is described. The phospholipids are first dissolved in chloroform:methanol (2:1 by vol), the solvent is evaporated, and the residue is redissolved in an aqueous zwitterionic detergent solution. The enzymatic reaction sequences of both assays involve hydrolysis of the phospholipids to produce choline, which is then oxidized to betaine, thus generating hydrogen peroxide. The hydrogen peroxide is subsequently utilized in the enzymatic coupling of 4-aminoantipyrine and sodium 2-hydroxy-3,5-dichlorobenzenesulfonate, an intensely red color being formed. The presence of a non-reacting phospholipid enhances the hydrolysis of the reacting phospholipid. Thus we added lecithin to the sphingomyelin standards and sphingomyelin to the lecithin standards. This precise procedure may be applicable to determination of lecithin and sphingomyelin in amniotic fluid.

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