Editorial: Frontiers in Chemistry-Rising Stars: Asia

School of Material and Chemical Engineering, Tongren University, Tongren, China, Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India, Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China, Environmental Engineering Department, Engineering Faculty, Bursa Uludag University, Bursa, Turkey, Department of Chemistry and Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong SAR, China, Institute of Industrial Science, The University of Tokyo, Tokyo, Japan, Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran, Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia, Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China

Chen et al. synthesized seventeen kinds of glycosides of 1,3,4thiadiazole derivatives and studied their antifungal activities. According to the structure-activity relationship analysis, the type and position of the substituents of the benzene ring in the derivatives play an important role in antifungal activity. The in vitro antibacterial activity experiments show that the derivatives have good antibacterial activity when the parasubstituent is a fluorine atom or a nitro group.
Tian et al. investigated the chemical, phytochemical, toxicological and pharmacological properties of Vaccaria segetalis in the past 40 years. They summarized a large number of literatures, and mainly introduced the research progress of Vaccaria segetalis in detail from the aspects of its composition, clinical application, and biological activity.
Malik et al. synthesized eight new pyran-linked phthalazinone pyrazole hybrid compounds and evaluated their cytotoxicity in lung cancer and cervical cancer cells, respectively. The results show that the hybrid compound of methyl substitution on pyrazole and two cyano groups on pyran has a good inhibitory response to both types of cells. In addition, molecular modeling studies have shown that the two kinds of hybrid compounds have higher binding affinity to proteins and show excellent drug likelihood.
Zhu et al. introduced the development of isocyanide in biomolecular labeling from three strategies: two-component bio-orthogonal reaction, multi-component reaction, and metal chelate reaction. Among them, isocyanide-tetrazine reaction is a well-studied biomolecular labeling technology which enriches the potency of isocyanide as a bio-orthogonal handle. In addition, the methods of introducing isocyano groups into biomacromolecules are discussed in detail to facilitate the development of biomolecular markers in the future.
Choe et al. have described about the biodegradable plastics and the factors affecting the biodegradation of these plastics. The biodegradation levels reported by various groups or studies in different environments vary to a great extent. This article clarifies the common misconceptions and truths about biodegradation by bridging the three gaps in biodegradable plastics. These enable readers to accurately understand the current status and future development direction of real biodegradable plastics.
Xiao et al. established a high-throughput ICP-MS method for the detection of 62 elemental impurities in high-matrix calcium carbonate. The impurity content in calcium carbonate preparation from 9 manufacturers and two types of raw materials (light calcium carbonate and ground calcium carbonate) was examined, which showed that ground calcium carbonate was more suitable for the pediatric supplements.
Wang et al. discussed the structure and physiological functions of mitochondria and mitochondria dysfunction related diseases. Moreover, the research progress of mitochondria-targeting agents based on small molecules, biomolecules, and nanomaterial and their potential in targeted drug delivery, novel biological applications and therapeutic strategies is comprehensively described. Therefore, this study will greatly promote the design and exploration of mitochondrial targeting molecules and their targeting mechanisms.
Fasfous et al. prepared Fe/Ti-oxide modified carbon nanotube nanocomposites and analyzed its ability to adsorb Co ions in a simulated solution. The presence of CNTs hampers the growth of Fe 3 O 4 and TiO 2 particles and forming smaller nano-particles leading to better Co removal from solution. Better Co retention was observed at higher Ti/Fe loads and lower mass of CNTs. The results show that the combination of Fe/Ti oxide and CNTs has a synergistic effect on the retention of cobalt ions.
Yasmeen et al. were inspired by the use of graphics to manipulate chemical structures and nanostructures and studied the largest-edge Mostar invariant of an n-vertex cactus graph with a fixed number of cycles. Some lemmas have been proved by using graph transformations and calculations.
Wu et al. designed and synthesized a series of pyrimidine derivatives containing amide groups. These synthetic pyrimidine derivatives were verified for their biological activity through in vitro antifungal experiments. The results show that 5-Bromo-2-fluoro-N-(3-((2-methyl-6-(trifluoromethyl)Pyrimidin-4-yl)oxy)phenyl)benzamide has excellent antifungal activity, which also shows that the compound has the potential to be developed as a pesticide.
We have presented here some snippets of different research activities in the field of chemical biology. We expect that this will be a handy reference tool for students and researchers working in different areas of chemistry to carry out biological studies of some novel systems having potential applications.

AUTHOR CONTRIBUTIONS
LG and JM wrote the first draft. WL, TY, HS, TM, JS, BM, and QZ provided critical comments and editorial suggestions for revisions. All the authors agreed on the submitted version.
Conflict of Interest: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.