Tag: 300-400

A review of distribution and risk of pharmaceuticals and personal care products in the aquatic environment in China was written by Xiang, Ying;Wu, Huihui;Li, Lu;Ren, Meng;Qie, Hantong;Lin, Aijun. And the article was included in Ecotoxicology and Environmental Safety in 2021.Formula: C13H9Cl3N2O This article mentions the following:

Due to the extensive use and pseudo-persistence of pharmaceuticals and personal care products (PPCPs), they are frequently detected in the aqueous environment, which has attracted global attention. In this paper, accumulation data of 81 PPCPs in surface water or sediment in China were reported. In addition, 20 kinds of PPCPs with high frequency were selected and their ecol. risk assessment was conducted by risk quotient (RQs). The results indicated that the concentration detected in surface water and sediment ranged from ng/L (ng/kg) to μg/L ( μg/kg) in China, which was similar to concentrations reported globally. However, contamination by certain PPCPs, such as caffeine, oxytetracycline, and erythromycin, was relatively high with a maximum concentration of more than 2000 ng/L in surface water. RQs revealed that 14 kinds of PPCPs pose no significant risk or low risk to aquatic organisms, while 6 kinds of PPCPs pose a high risk. Addnl., the pollution characteristics of PPCPs in each watershed are different. The Haihe River watershed and the central and lower Yangtze River were the regions of high concern for erythromycin. Triclosan has potential risks in the Pearl River watershed. This study determined the occurrence and risk of PPCPs in China in the past decade, providing a scientific basis for PPCPs pollution control and risk prevention. In the experiment, the researchers used many compounds, for example, 1-(4-Chlorophenyl)-3-(3,4-dichlorophenyl)urea (cas: 101-20-2Formula: C13H9Cl3N2O).

1-(4-Chlorophenyl)-3-(3,4-dichlorophenyl)urea (cas: 101-20-2) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Formula: C13H9Cl3N2O

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Mesoporous silica imprinted carbon dots for the selective fluorescent detection of triclosan was written by Bhogal, Shikha;Mohiuddin, Irshad;Malik, Ashok Kumar;Brown, Richard J. C.;Heynderickx, Philippe M.;Kim, Ki-Hyun;Kaur, Kuldeep. And the article was included in Science of the Total Environment in 2022.Product Details of 101-20-2 This article mentions the following:

A molecularly imprinted fluorescence sensor built as a mesoporous structured silica imprinted layer on the surface of carbon dots (CDs@m-MIP) was employed for the selective detection of triclosan (TRI). The fluorescence of this CDs@m-MIP was affected sensitively and selectively by TRI via an electron transfer-induced fluorescence quenching mechanism with a detection limit of TRI at 1.08 nM (range 1.72-138 nM) under the optimum setup (e.g., pH, response time, and CDs@m-MIP dose). This approach was used successfully to detect TRI in real water samples (e.g., sewage, river, and tap water). The recoveries of TRI were satisfactory in spiked river and tap water (in 94.7-99.5%). The outcome of this research is thus expected to help develop highly efficient fluorescent sensing systems towards diverse hazardous compounds including TRI. In the experiment, the researchers used many compounds, for example, 1-(4-Chlorophenyl)-3-(3,4-dichlorophenyl)urea (cas: 101-20-2Product Details of 101-20-2).

1-(4-Chlorophenyl)-3-(3,4-dichlorophenyl)urea (cas: 101-20-2) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Product Details of 101-20-2

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Superior adsorption performance of citrate modified graphene oxide as nano material for removal organic and inorganic pollutants from aqueous solution was written by Abd-Elhamid, A. I.;Elgoud, E. M. Abu;Emam, Sh. Sh.;Aly, H. F.. And the article was included in Scientific Reports in 2022.Application In Synthesis of 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride This article mentions the following:

This work addressed one step preparation method to form a novel nano material composite of graphene oxide nanosheet (GO) functionalized with low-cost tri-sodium citrate (C), using, teteraethylorthosilicate (TEOS) as a crosslinker. The prepared composite (GO-C) was characterized using various advanced techniques. Among these techniques, the TGA provided interesting information concerning the functionalization process. Within this process, the (-OH) groups that located at the GO-surface were consumed in the modification process which leads to increase the thermal stability of the resulted composite. Cationic organic methylene blue (MB) and crystal violet (CV), and inorganic copper (Cu²⁺) and cobalt (Co²⁺) pollutants were displayed as a model to assess their removal performance by the developed composite (GO-C) from aqueous solution, through batch technique. According to Langmuir isotherm the GO-C present an excellent adsorption capacity for MB (222.22 mg g^-1), CV (270.27 mg g-1), Cu²⁺ (163.4 mg g^-1) and Co²⁺ (145.35 mg g^-1) which were more than the adsorption capacities found in literature. Addnl., the regenerated composite presents higher removal ability than the original composite. In the experiment, the researchers used many compounds, for example, 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4Application In Synthesis of 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride).

3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Application In Synthesis of 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

An ultra-sensitive dual-signal ratiometric electrochemical aptasensor based on functionalized MOFs for detection of HER2 was written by Xu, Ying;Zhang, Ya;Li, Ning;Yang, Mei;Xiang, Tingxiu;Huo, Danqun;Qiu, Zhu;Yang, Li;Hou, Changjun. And the article was included in Bioelectrochemistry in 2022.Application of 61-73-4 This article mentions the following:

The dual-signal radiometric sensor can effectively reduce the difference between repeated detection and achieve higher accuracy, sensitivity and repeatability detection. In this work, we constructed a simple ratiometric electrochem. aptasensor based on functionalized ZIF-67 and ZIF-90 for sensitive detection of human epidermal growth factor receptor-2 (HER2). ZIF-67@Ferrocene (Fc)/antimonate nano flakes (AMNFs) as the capture probe has a large sp. surface area and good conductivity, and have a strong adsorption capacity for aptamer single-stranded DNA (ssDNA). When the biomarker – HER2 interacts with aptamer ssDNA, it is easily desorbed from its surface. At the same time, ZIF-90@ methylene blue (MB) as the signal probe realizes one-step encapsulation of MB signal, which can avoid interference from external environment. When the target-HER2 exists, it is recognized by the capture probe, which leads to the decrease of the conductivity of the electrode. Under the action of the signal probe, the conductivity of the signal is recovered and the detection signal is amplified significantly. The designed ratiometric electrochem. aptasensor showed a wide linear range (0.5-1000 pg mL^-1) and a low detection limit (155 fg mL^-1) for HER2. Subsequently, it was applied to actual serum samples and showed acceptable applicability. It shows great potential for clin. screening and immediate detection of cancer biomarkers. In the experiment, the researchers used many compounds, for example, 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4Application of 61-73-4).

3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Application of 61-73-4

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Effects of the presence of triclocarban on the degradation and migration of co-occurring pesticides in soil was written by Cheng, Zheng;Zhang, Chuntao;Jiang, Wenqi;Zhai, Wangjing;Gao, Jing;Wang, Peng. And the article was included in Environmental Pollution (Oxford, United Kingdom) in 2022.Formula: C13H9Cl3N2O This article mentions the following:

Triclocarban (TCC), a bactericide widely used in personal care products, is frequently detected in soil and surface water, which may affect the environmental behavior of other environmental pollutants by changing the community structure of environmental microorganisms. This work evaluated the effects of TCC on the degradation and migration of seven herbicides and five fungicides in soil under co-occurrence conditions. TCC significantly increased the persistence of the pesticides in soil, and this effect increased with TCC concentration For example, the half-life of metolachlor, atrazine, metribuzin, and metamitron increased 44%, 38%, 153%, and 33%, resp., with 10 mg/kg TCC and increased 60%-640% with 100 mg/kg TCC. After 90 days, the residue of the pesticides in soil treated with TCC was significantly elevated relative to the control. TCC treatment could also increase the potential leaching risk of the herbicides in the soil, as indicated by an increased Groundwater Ubiquity Score (GUS) index. The reduced abundance of soil bacteria by TCC might be an essential reason for the impacts on the environmental behavior of the pesticides. This study confirmed that TCC could slow down the degradation of pesticides in soil, increase their persistence and even affect the leaching behavior, thus influencing the risks of the pesticides to the environment. In the experiment, the researchers used many compounds, for example, 1-(4-Chlorophenyl)-3-(3,4-dichlorophenyl)urea (cas: 101-20-2Formula: C13H9Cl3N2O).

1-(4-Chlorophenyl)-3-(3,4-dichlorophenyl)urea (cas: 101-20-2) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Alkyl chlorides are versatile building blocks in organic chemistry. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available.Formula: C13H9Cl3N2O

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Amyloid-based carbon aerogels for water purification was written by Peydayesh, Mohammad;Vogt, Julia;Chen, Xiulin;Zhou, Jiangtao;Donat, Felix;Bagnani, Massimo;Muller, Christoph R.;Mezzenga, Raffaele. And the article was included in Chemical Engineering Journal (Amsterdam, Netherlands) in 2022.Computed Properties of C16H18ClN3S This article mentions the following:

Water scarcity is a worldwide concern with various implications, such as widespread pollution with heavy metals and organic pollutants, resulting in global threats to the environment and human health, and calling for innovative remediation strategies. We show here that the capability of protein-based carbon aerogels for removing contaminants from water can be greatly improved by transforming proteins into amyloids before their hydrothermal carbonization. Amyloid fibrils were prepared from whey protein isolate, a byproduct of the dairy industry, and upon addition to different carbohydrates, the ensued mixtures were used for carbon aerogels production Furthermore, the generality of the approach for producing carbon aerogels was demonstrated using vegetable amyloids from soy protein. The carbon aerogels are able to adsorb Au(III), Pt(II), Fe(III), and Ag(I) with excellent removal efficiencies. Moreover, the amyloid whey lactose carbon aerogel has an adsorption capacity of 650.08 mg/g for Au(III), significantly higher than that of a carbon aerogel derived from monomer whey lactose. The reusability of the carbon aerogel is also proven over three continuous adsorption/regeneration cycles, with a stable performance in terms of removal efficiency indicating good long-term use. Taken together, the results demonstrate amyloid carbon aerogels′ capability as an efficient, sustainable, and inexpensive solution for water purification In the experiment, the researchers used many compounds, for example, 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4Computed Properties of C16H18ClN3S).

3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Computed Properties of C16H18ClN3S

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Essential oil-mediated biocompatible magnesium nanoparticles with enhanced antibacterial, antifungal, and photocatalytic efficacies was written by Pathania, Diksha;Kumar, Sunil;Thakur, Pankaj;Chaudhary, Vishal;Kaushik, Ajeet;Varma, Rajender S.;Furukawa, Hidemitsu;Sharma, Mamta;Khosla, Ajit. And the article was included in Scientific Reports in 2022.SDS of cas: 61-73-4 This article mentions the following:

Emergent application of antimicrobial strategies as symptomatic treatment in coronavirus disease (COVID-19) and linkage of severe acute respiratory syndrome coronavirus2 with microbial infections, has created colossal demand for antimicrobials. For the first time, this communication explore the physicochem., antifungal, antibacterial, and photocatalytic properties of biogenic magnesium nanoparticles (MgNPs), synthesized using essential oil of Cymbopogon flexuosus’s as an efficient multifunctional reducing and stabilizing/capping reagent. It is observed that MgNPs (ranging in size: 8-16 nm) of varying phytochem. compositions (MgS1, MgS2, MgS3) exhibited various useful physicochem., antimicrobial, and photocatalytic properties. FTIR outcomes highlight the functional biomols.-assisted reduction of Mg from Mg⁺ to Mg⁰. Among all, MgS3-Nps owing to the smallest particle size exhibited superior photocatalytic efficacy (91.2%) for the methylene blue degradation upon direct exposure to the sunlight for 3 h without using any reducing agents. Fabricated MgNPs also exhibited excellent antifungal (against Fusarium oxysporum) and antibacterial (vs. Staphylococcus aureus and Escherichia coli) efficacies compared to state-of-the-art antimicrobial agents deployed for the treatment of infectious diseases. Based on this investigated greener approach, imperative from economic and environmental viewpoint, such essential oil based-MgNPs can be a potential nanosystem for various industrial applications where photocatalytic, and biomedical attributes are the key requirements. In the experiment, the researchers used many compounds, for example, 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4SDS of cas: 61-73-4).

3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.SDS of cas: 61-73-4

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Eco-friendly preparation of Bi₂O₃, Ag-Bi₂O₃ and Ag-Bi₂O₃-rGO nanomaterials and their photocatalytic H₂ evolution, dye degradation, nitrite sensing and biological applications was written by Nethravathi, P. C.;Manjula, M. V.;Devaraja, S.;Sakar, M.;Suresh, D.. And the article was included in Journal of Photochemistry and Photobiology, A: Chemistry in 2023.Synthetic Route of C16H18ClN3S This article mentions the following:

The current studies demonstrate the preparation of Bi₂O₃, Ag-Bi₂O₃, Ag-Bi₂O₃-rGO nanocomposite using a clear and concise, environmentally sustainable, low-cost green combustion method employing citrus limon as fuel. The synthesized materials were characterised through XRD, UV-DRS, FT-IR, TGA, TEM, SEM and Raman studies. The synthesized Ag-Bi₂O₃-rGO composite exhibited much improved photocatalytic H₂ evolution activity (432.7 μmolg^-1 h^-1) which is 5.5 times greater than bare-Bi₂O₃ (78.6 μmolg^-1 h^-1) and 4.2 times greater than Ag-Bi₂O₃ (101.2 μmolg^-1 h^-1) NPs. Further, Bi₂O₃, Ag-Bi₂O₃ and Ag-Bi₂O₃-rGO composite degraded the MB dye by 63.96, 74.9 and 100 % resp. in 90 min. Ag-Bi₂O₃-rGO exhibited superior electrochem. nitrite sensing property (with the LOD of 19.792 μM). Ag-Bi₂O₃-rGO nanocomposite exhibited potential antiradical property with IC50 of 900 μg/mL Ag-Bi₂O₃-rGO was found to have potent direct haemolytic, anticoagulant, antiplatelet and antibacterial activities. This study illustrates a simple, environmental friendly green synthetic technique for large-scale synthesis of multifunctional Ag-Bi₂O₃-rGO nanocomposite. In the experiment, the researchers used many compounds, for example, 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4Synthetic Route of C16H18ClN3S).

3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Synthetic Route of C16H18ClN3S

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Preparation of composite Langmuir-Blodgett films based on carbon spheres and wide applications for acid/alkaline gas sensor, surface enhanced Raman scattering and photoelectrics was written by Li, Guohua;Bian, Pengfei;Wang, Ran;Li, Yan;Cao, Huiju;Zhang, Senlin;Hao, Zongshuo;Wang, Mingli;Jiao, Tifeng. And the article was included in Colloids and Surfaces, A: Physicochemical and Engineering Aspects in 2022.HPLC of Formula: 61-73-4 This article mentions the following:

Through this study, a variety of carbon spheres/dye (CS/dye) composite films were prepared based on the Langmuir-Blodgett (LB) technol. The prepared CS/dye composite films were tested for acid and alkali gases discoloration characteristics. The CS/CR composite film shows good acid/alk. gas sensing performances, and its characteristic absorption peaks have a significant movement in the UV-vis spectrum. In addition, the surface enhancement of the Raman scattering (SERS) experiment proves the good Raman enhancement performance of the prepared composite LB film with the enhanced factor (EF) of 8.5 x 10⁴. The relative standard deviation of Raman intensity is 24.74%, indicating the good reproducibility and uniformity of composite film, which makes it applicable to the detection of trace mols. Furthermore, the CS/NR composite film has a c.d. of 1217μA/cm² when the potential voltage is 1 V, indicating that the composite film has a high carrier transfer rate, which provides a reference for further exploration of optoelectronic devices of CSs system. In the experiment, the researchers used many compounds, for example, 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4HPLC of Formula: 61-73-4).

3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.HPLC of Formula: 61-73-4

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics