scholarly journals One-pot Bottom-up Synthesis of 2D Graphene Derivative: Application in Biomolecular Recognition and Nanozyme Activity

2021 ◽  
Author(s):  
Subrata Pandit ◽  
Mrinmoy De
Keyword(s):  
Growth Control ◽  
Biomolecular Recognition ◽  
Two Dimensional ◽  
One Pot ◽  
Bottom Up ◽  
2D Nanosheets

The synthesis of two-dimensional (2D) nanosheets such as graphene and their derivatives through bottom-up approach has many advantages such as growth control and functionalization, but it is always challenging to...

Immobilization of BiOBr/BiOI Hierarchical Microspheres on Fly Ash Cenospheres as Visible Light Photocatalysts

2016 ◽  
Vol 69 (1) ◽  
pp. 119 ◽  
Author(s):  
Li Lin ◽  
Ya Wang ◽  
Manhong Huang ◽  
Donghui Chen
Keyword(s):  
Photocatalytic Activity ◽  
Fly Ash ◽  
Visible Light ◽  
Diffuse Reflectance Spectroscopy ◽  
Three Dimensional ◽  
One Pot ◽  
Transmission Electron ◽  
Hierarchical Microspheres ◽  
2D Nanosheets ◽  
Fly Ash Cenospheres

Three-dimensional (3D) BiOBr/BiOI hierarchical microspheres were successfully fabricated on the surface of fly ash cenospheres (FACs) via a facile one-pot solvothermal method for the first time. The as-prepared samples were characterized by XRD, SEM, energy-dispersive X-ray spectroscopy, UV–visible diffuse reflectance spectroscopy, and high-resolution transmission electron microscopy. The results indicated that the loaded hierarchical microspheres exhibited a uniform distribution, and some aggregation was observed. These well-dispersed hierarchical microspheres were composed of 2D nanosheets, which possess heterojunction structures. Based on the photodegradation tests examining the removal of rhodamine B from water under visible light irradiation (λ > 420 nm), the photocatalytic activity of BiOB/BiOI/FACs was superior to that of BiOBr/FACs and BiOI/FACs. A proposed mechanism for the enhanced photocatalytic activity displayed by BiOB/BiOI/FACs is discussed.

One-pot synthesis of two-dimensional multilayered graphitic carbon nanosheets by low-temperature hydrothermal carbonization using the in situ formed copper as a template and catalyst

2020 ◽  
Vol 56 (78) ◽  
pp. 11645-11648
Author(s):  
Huangqing Ye ◽  
Jiahui Chen ◽  
Yougen Hu ◽  
Gang Li ◽  
Xian-Zhu Fu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Hydrothermal Carbonization ◽  
Graphitic Carbon ◽  
Two Dimensional ◽  
One Pot ◽  
Carbon Nanosheets ◽  
One Pot Synthesis

Two-dimensional (2D) multilayered graphitic carbon nanosheets are prepared via a facile, green, and mild method of one-pot hydrothermal carbonization at a temperature below 300 °C.

Bottom-up fabrication of graphene-based conductive polymer carpets for optoelectronics

2018 ◽  
Vol 6 (18) ◽  
pp. 4919-4927 ◽  
Author(s):  
Tao Zhang ◽  
Raul D. Rodriguez ◽  
Ihsan Amin ◽  
Jacek Gasiorowski ◽  
Mahfujur Rahaman ◽  
...  
Keyword(s):  
Polymer Brush ◽  
Conductive Polymer ◽  
Polymer Membranes ◽  
Covalent Attachment ◽  
Two Dimensional ◽  
Bottom Up ◽  
One Dimensional ◽  
2D Material

The covalent attachment of a one dimensional (1D) polymer brush onto a two-dimensional (2D) material presents an appealing strategy to fabricate anisotropic polymer membranes, namely “polymer carpets”.

Targeted profiling of 24 sulfated and non-sulfated bile acids in urine using two-dimensional isotope dilution UHPLC-MS/MS

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Katharina Habler ◽  
Bernhard Koeppl ◽  
Franz Bracher ◽  
Michael Vogeser
Keyword(s):  
Sample Preparation ◽  
Bile Acids ◽  
High Performance ◽  
Solid Phase ◽  
Sulfate Solution ◽  
Two Dimensional ◽  
Bioanalytical Method Validation ◽  
One Pot ◽  
Internal Standards ◽  
Secondary Bile Acids

Abstract Objectives Bile acids serve as biomarkers for liver function and are indicators for cholestatic and hepatobiliary diseases like hepatitis, cirrhosis, and intrahepatic cholestasis of pregnancy (ICP). Sulfation and renal excretion of bile acids are important elimination steps. The power of ultra high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) allows specific profiling of primary and secondary bile acids as well as their sulfated counterparts. Methods Twenty-four sulfated and non-sulfated primary and secondary bile acids were quantified in urine with 15 corresponding stable isotope labeled internal standards by using two-dimensional UHPLC-MS/MS. The sample preparation was based on a simple dilution with a methanolic zinc sulfate solution followed by an automated online solid phase extraction clean up. Results The validation results of the method fulfilled the criteria of the European Medicine Agency (EMA) “Guideline on bioanalytical method validation”. To verify fitness for purpose, 40 urine samples were analyzed which showed an average of 86% sulfation, 9.1% taurine-conjugation, 14% non-conjugation, and 77% glycine-conjugation rates. Conclusions Lossless one-pot sample preparation, automated sample purification, and high number of internal standards are major innovations of the presented profiling method, which may allow diagnostic application of BA profiling in the future.

Two-Dimensional Mesoporous Heterostructure Delivering Superior Pseudocapacitive Sodium Storage via Bottom-Up Monomicelle Assembly

2019 ◽  
Vol 141 (42) ◽  
pp. 16755-16762 ◽  
Author(s):  
Kun Lan ◽  
Qiulong Wei ◽  
Ruicong Wang ◽  
Yuan Xia ◽  
Shuangshuang Tan ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Bottom Up ◽  
Sodium Storage

Bottom‐Up On‐Surface Synthesis of Two‐Dimensional Graphene Nanoribbon Networks and Their Thermoelectric Properties

2019 ◽  
Vol 14 (23) ◽  
pp. 4400-4407 ◽  
Author(s):  
Takahiro Kojima ◽  
Takahiro Nakae ◽  
Zhen Xu ◽  
Chinnusamy Saravanan ◽  
Kentaro Watanabe ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Graphene Nanoribbon ◽  
Two Dimensional ◽  
Bottom Up

TWO TOPICS CONCERNING TWO-DIMENSIONAL AUTOMATA OPERATING IN PARALLEL

1992 ◽  
Vol 06 (02n03) ◽  
pp. 211-225 ◽  
Author(s):  
KATSUSHI INOUE ◽  
ITSUO SAKURAMOTO ◽  
MAKOTO SAKAMOTO ◽  
ITSUO TAKANAMI
Keyword(s):  
Turing Machine ◽  
Finite Automata ◽  
Space Complexity ◽  
Two Dimensional ◽  
Turing Machines ◽  
Small Space ◽  
Bottom Up ◽  
Constructible Function ◽  
Deterministic Turing Machine ◽  
Alternating Turing Machines

This paper deals with two topics concerning two-dimensional automata operating in parallel. We first investigate a relationship between the accepting powers of two-dimensional alternating finite automata (2-AFAs) and nondeterministic bottom-up pyramid cellular acceptors (NUPCAs), and show that Ω ( diameter × log diameter ) time is necessary for NUPCAs to simulate 2-AFAs. We then investigate space complexity of two-dimensional alternating Turing machines (2-ATMs) operating in small space, and show that if L (n) is a two-dimensionally space-constructible function such that lim n → ∞ L (n)/ loglog n > 1 and L (n) ≤ log n, and L′ (n) is a function satisfying L′ (n) =o (L(n)), then there exists a set accepted by some strongly L (n) space-bounded two-dimensional deterministic Turing machine, but not accepted by any weakly L′ (n) space-bounded 2-ATM, and thus there exists a rich space hierarchy for weakly S (n) space-bounded 2-ATMs with loglog n ≤ S (n) ≤ log n.

Binary nickel iron phosphide composites with oxidized surface groups as efficient electrocatalysts for the oxygen evolution reaction

2019 ◽  
Vol 3 (12) ◽  
pp. 3518-3524 ◽  
Author(s):  
Chen Liu ◽  
Han Zhu ◽  
Zhili Zhang ◽  
Jican Hao ◽  
Yudong Wu ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Oxygen Evolution Reaction ◽  
Surface Groups ◽  
Carbon Cloth ◽  
Two Dimensional ◽  
Facile Hydrothermal Method ◽  
Oxidation Treatment ◽  
Iron Phosphide ◽  
Nickel Iron ◽  
2D Nanosheets

We have synthesized the binary NiFeOH, NiFeO and NiFeP two-dimensional (2D) nanosheets on carbon cloth (CC) via a facile hydrothermal method combined with phosphorization and oxidation treatment.

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