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Advanced Layered Double Hydroxide-Based Electrocatalysts for Electrocatalytic Oxygen Evolution Reaction
Tariq Ali, Niaz Muhammad, Tingzhou Yang, and Chenglin Yan
General Chemistry    DOI: 10.21127/yaoyigc20200001
Online available: 09 February 2020

Luminescence of Europium Complexes with Triazole-Containing Ligands
Jae Hoon Kim, A. I. Dalinger, A. V. Medvedko, E. V. Latipov, S. Z. Vatsadze, and V. V. Utochnikova
General Chemistry    DOI: 10.21127/yaoyigc20200002
Online available: 06 May 2020

SnSe Solar Cells: Current Results and Perspectives
Paul Beltrán-Bobadilla, A. Carrillo-Osuna, J. A. Rodriguez-Valverde, B. Acevedo-Juárez, I. Montoya De Los Santos, F. J. Sánchez-Rodriguez, and Maykel Courel
General Chemistry    DOI: 10.21127/yaoyigc20200012
Online available: 08 September 2020

Hollow Polymer Capsules for Drug Delivery
Yuancheng Ji and Junqiu Liu
General Chemistry    DOI: 10.21127/yaoyigc20200009
Online available: 23 June 2020

C—H Activation, a New Strategy for Synthesis of 3-Substituted Phthalides
Qianqian Sun, Runqing Zhu, Shuyu Hu, and Lizhen Fang
General Chemistry    DOI: 10.21127/yaoyigc20200010
Online available: 27 July 2020

Optical and Magnetic Properties of Superparamagnetic Fe 3O 4 Colloidal Nanoparticles
B. K. Pandey, A. K. Shukla, R. K. Kotanala, J. Shah, and R. Gopala
General Chemistry    DOI: 10.21127/yaoyigc20200006
Online available: 04 June 2020

Water Stability of Metal-Organic Framework HKUST-1
Angela Terracinaa, and Gianpiero Buscarino
General Chemistry    DOI: 10.21127/yaoyigc20210002
Online available: 27 May 2021

Fullerene in Carbon Nanoring: A Saturn-Like Supramolecular Complex
Jie Zhang, Chunru Wang, and Taishan Wang
General Chemistry    2021, 7 (2): 200018-200018.   DOI: 10.21127/yaoyigc20200018
Abstract201)      PDF (810KB)(195)       Save
Fullerenes have attracted much attention because of their unique electronic structure and spherical cage shape. Specially, fullerenes have been widely used as guest in supramolecular chemistry due to their spherical structures. Recently, the supramolecular complexes of fullerenes and several types of carbon nanorings have been constructed and investigated. The complex of fullerene in carbon nanoring is like a Saturn, and this unique kind of supramolecular complexes will have potential applications in chemical, material and physical fields. In this review, various complexes of fullerene in carbon nanoring and their special properties are described. We hope to expand the application of these supramolecular complexes in various fields.
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Component Optimization for Catalyst Layers in Proton Exchange Membrane Fuel Cells
Jiaheng Peng, Wencong Zhang, Xuewei Zhang, Peng Tao, Chengyi Song, Wen Shang, Tao Deng and Jianbo Wu
General Chemistry    DOI: 10.21127/yaoyigc2020200016
Online available: 07 December 2020

Electrospinning as an Important Tool for Fabrication of Nanofibers for Advanced Applications—a Brief Review
Merin Sara Thomas, Prasanth K. S. Pillai, Scott C. Farrow, Laly A. Pothan and Sabu Thomas
General Chemistry    2021, 7 (3): 200022-200022.   DOI: 10.21127/yaoyigc20200022
Abstract189)      PDF (860KB)(97)       Save
Nanomaterials are attracting renewed interest due to their novel properties, which are not seen in their conventional micro state counterparts. They are used in advanced applications in the fields of catalysis, medicine, electronics, optics and membranes. Electrospinning is one of the simplest and cheapest methods to make nano-porous polymer membranes, and these offer a large surface area-to-volume ratio, high porosity and small pore size. These electrospun nonwoven mats could be employed in myriad applications ranging from filtration, sensors, electrode materials, drug delivery, cosmetics, and tissue scaffolding. This technique can introduce novel functional characteristics, and hence by changing the basic experimental set up, solvent, solution and polymer characteristics can alter the composition, morphology, and porosity of the processed material. The unique structural and functional characteristics inherited at submicron to nanoscale dimensions via electrospinning makes it an attractive technique for advanced industrial applications.
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Ultrasensitive in-vitro Detection Assay for Non-invasive Alzheimer’s Disease Diagnosis
See-Lok Ho, Hei-Nga Chan, Hung-Wing Li, Man-Shing Wong
General Chemistry    DOI: 10.21127/yaoyigc20190035
Online available: 15 December 2019

Influence of Polyvinylidene Fluoride Polymorphs in Membrane-Assisted Crystallization: NaCl Crystals Nucleation and Growth
Maria Luisa Perrotta, Antonio Giovanni Bruno, Francesca Macedonio, Zhaoliang Cui, Enrico Drioli, and Elena Tocci
General Chemistry    DOI: 10.21127/yaoyigc20200015
Online available: 15 November 2020

The Enigmas of Surfaces
Abraham Marmur
General Chemistry    2021, 7 (2): 200021-200021.   DOI: 10.21127/yaoyigc20200021
Abstract183)      PDF (565KB)(103)       Save
The properties of surfaces are crucial for many processes in a variety of areas in biology, industry, and daily life. Surprisingly, even though surface phenomena have been studied for more than 200 years by some of the greatest physicists, mathematicians, and engineers, there are still quite a few enigmas to be solved. This paper presents some fundamental enigmas related to the surface tensions of liquids and solids that were either partially solved or yet mostly unsolved.
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Organic NIR Photodetectors: Pushing Photodiodes Beyond 1000 nm
Seth C. Rasmussen, Spencer J. Gilman, Evan W. Culver, and Wyatt D. Wilcox
General Chemistry    2021, 7 (2): 200019-200019.   DOI: 10.21127/yaoyigc20200039
Abstract182)      PDF (998KB)(181)       Save
Advances in the synthesis of low bandgap (E g < 1.5 eV) conjugated polymers has produced organic materials capable of absorbing near-infrared (NIR) light (800—2500 nm), with these materials first applied to photodiode NIR detectors in 2007 as an alternative to more traditional inorganic devices. Although the development of organic NIR photodetectors has continued to advance, their ability to effectively detect wavelengths in the low-energy portion of the NIR spectrum is still limited. Efforts to date concerning the production of photo-diode-based devices capable of detecting light beyond 1000 nm are reviewed.
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Binder-Free Monoliths of Graphene Dried Foam Films Covering Polyaniline for Supercapacitors Electrode
Wufeng Chen, Junhao Chen, and Lifeng Yan
General Chemistry    2021, 7 (2): 200014-200014.   DOI: 10.21127/yaoyigc20200014
Abstract181)      PDF (920KB)(193)       Save
Dried foam films (DFF) of graphene oxide (GO) has been prepared by dipping a titanium mesh in the solution of GO, and then it was reduced by electrochemical method. Next, the as-prepared water-containing reduced grapheme oxide (rGO) DFF film works as electrode for electrocpolymerization of aniline onto its surface for preparing a polyaniline/graphene monolith while the titanium mesh acts as the electron collector. The as-obtained composite film is binder-free and has highly surface area, conductivity, and can be used for supercapacitor electrode. Then network of plenty polyaniline nanoparticles formed on the surface of rGO film by electrochemical polymerization, which works as the material for pseudocapacitance. When the film is used as a supercapacitor electrode, the maximum specific capacitance is as high as 633.4 F g −1 and the specific capacitance retains 75% of the initial after constant charge discharge 5000 cycles at current density of 10 A g −1, indicating that the nanocomposite is a suitable active material for supercapacitors.
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Thin Layer Chromatography as a Pilot Method for High Performance Liquid Chromatography to Analyze Sesquiterpenes in the Genus Lindera
Shuyu Xu, Siwei Wang, Hong Zhou, Jiamin Li, Xiaoqing Wu, Xin Chen, and Hezhong Jiang
General Chemistry    2021, 7 (3): 210003-210003.   DOI: 10.21127/yaoyigc20210003
Abstract149)      PDF (565KB)(61)       Save
In this paper, we developed and validated a simple and accurate thin layer chromatography method for the analysis of the chemical components in the plants of genus Lindera (the Lauraceae family). High performance liquid chromatography method was used to verify the results of thin layer chromatography analysis.
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La(OTf) 3-Catalyzed Synthesis of Nickel(II) β-Iminoporphyrins and Their Conversion to β-Substituted Porphyrin-Thiazolidinone Hybrids
Ranjan K Bhatt, Pargat Singh, Raju Tiwari, and Mahendra Nath
General Chemistry    DOI: 10.21127/yaoyigc20200020
Online available: 25 January 2021

Chemical Reactions in Thermal Carbonization Processing of  Citric Acid-Urea Mixtures
Weixiong Liang, Ping Wang, Liju Yang, Christopher M. Overton, Brian Hewitt, Ya-Ping Sun
General Chemistry    2021, 7 (3): 210011-210011.   DOI: 10.21127/yaoyigc20210011
Abstract118)      PDF (1018KB)(116)       Save
Carbon dots are small carbon nanoparticles with effective surface passivation by mostly organic species. For such a simple and well-defined nanoscale structure, the classical and most reliable synthesis is the use of pre-existing small carbon nanoparticles for surface chemical functionalization with organic molecules. However, a more popular synthetic approach in the literature has been the “one-pot” carbonization of organic precursors, which with appropriate processing conditions could in principle create local structures in the resulting dot-like entities that may be comparable to the structural configuration in carbon dots, though the carbonization can also easily produce colored organic materials crosslinked into the sample structures. An extreme example was the thermal processing of the specific organic precursor mixtures including only citric acid with formamide or urea to yield samples of red/near-IR absorption and emission features, which prompted the claims of “red/near-IR carbon dots”. In reality, these spectral features have nothing to do with nanoscale carbon, let alone carbon dots, but simply associated with molecular dyes/chromophores produced in chemical reactions of the specific precursor mixtures under the thermal processing conditions intended for carbonization. In this work, the isolation and identification of the responsible molecular dyes/chromophores were pursued. The results present further evidence for the conclusion that the red/near-IR absorption and emission features have nothing to do with carbon dots.
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Meyer-Schuster Rearrangement—Convenient Synthesis of α,β-Unsaturated α-Iodinated Aldehydes and Ketones
Juri M. Timonen, Petri A. Turhanen
General Chemistry    2021, 7 (2): 200023-200023.   DOI: 10.21127/yaoyigc20200023
Abstract117)      PDF (596KB)(145)       Save
The Meyer-Schuster rearrangement reaction has been known for almost a hundred years. It has been used to prepare unsaturated aldehydes, ketones, and even esters from propargyl alcohols. Thirty years ago, the same reaction was found to produce also α-halogenated aldehydes and ketones under suitable conditions. In the last thirty years, several methods have been developed utilizing the Meyer-Schuster rearrangement in the synthesis of halogenated building blocks for use in synthetic chemistry. In this perspective, we describe the progress in the field.
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Crosslinked Polymer Nanoassemblies and Their Delivery Applications
Zhao Wang, Filipe Olim, Ana Rute Neves, Mariana Vieira, Jingjing Sun, Helena Tomás, and Ruilong Sheng
General Chemistry    2021, 7 (3): 210007-210007.   DOI: 10.21127/yaoyigc20210007
Abstract114)      PDF (690KB)(59)       Save
Chemical crosslinking technology was rapidly developed and utilized to prepare structurally fixed, stabilized and functionalized polymer nanoassemblies and nanoarchitectures by covalently reinforcing the interactions between the polymer chains. This perspective reviewed recent advances on the crosslinked polymer nanoassemblies and their applications, mainly in drug delivery. Moreover, possible future research outlooks in the field of Shell-crosslinked polymer nanoassemblies were also stated and discussed.
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A Minireview on Chemical Constituents and Bio a ctivities   of Lindera glauca
Si-Wei Wang, Ji-Min Liu, Qing-Tian Gao, Ji-Song Mo, Xing Wang, Xin Chen, and He-Zhong Jiang
General Chemistry    2021, 7 (3): 210005-210005.   DOI: 10.21127/yaoyigc20210005
Abstract68)      PDF (935KB)(57)       Save
Lindera glauca  (Sieb. et Zucc.) Bl is Chinese herbal medicine known as Niujin tree or Leigongzi. Alkaloids, flavonoids, terpenes, volatile oils,  etc ., are found in  L. glauca,  exhibiting some pharmacological activities such as anti-bacterial, anti-influenza virus, anti-fungal, antioxidant activities, an effect on bronchial and intestinal smooth muscle, and so on. Herein, we summarized chemical compositions and physiological activities  of  L. glauca  for future research.
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Simple and Efficient Eco-Friendly Multigram Procedure for Preparation of Piperazine Hydrochloride, an Important Building Block in Medicinal Chemistry
Cristiane F. da Costa, Marcus Vinicius N. de Souza, Victor Facchinetti, and Claudia Regina B. Gomes
General Chemistry    2021, 7 (3): 210004-210004.   DOI: 10.21127/yaoyigc20210004
Abstract51)      PDF (675KB)(47)       Save
This work describes the synthesis of piperazine hydrochloride in multigram scale and high yields with promising industrial applications. This methodology is simple, fast, safe, low cost, and applicable to the synthesis of a wide variety of piperazine derivatives, being very useful in medicinal chemistry and other fields.
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Contents: Gen. Chem. 4/2020
General Chemistry   
Accepted: 29 December 2020

Contents: Gen. Chem. 1/2021
General Chemistry   
Accepted: 30 March 2021

Contents: Gen. Chem. 2/2021
General Chemistry    2021, 7 (2): 0-0.  
Abstract31)      PDF (333KB)(12)       Save
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Contents: Gen. Chem. 3/2021
General Chemistry    2021, 7 (3): 0-0.  
Abstract15)      PDF (465KB)(2)       Save
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Corrigendum to “Effect of Surface Modified Fullerene C70 on the ROS Production and Cellular Integrity Using Chinese Hamster Ovarian Cells” (Gen. Chem. 2020, 6, 190022)
S. Anju, J. Ashtami, P. V. Mohanan
General Chemistry    2021, 7 (3): 210010-210010.   DOI: 10.21127/yaoyigc20190022
Abstract2)      PDF (669KB)(8)       Save
The authors regret the unnoticed error occurred during the data transmission process while preparing the manuscript. We inadvertently included wrong set of images in Figure 1(A), Figure 3(A&D), Figure 4(A) and Figure 5(A&D) panels of original manuscript. The corrected figure panels are provided below. 
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General Chemistry   
Accepted: 30 March 2021

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