Article
Chemistry, Physical
Swapnil D. Deshmukh, Caleb K. Miskin, Apurva A. Pradhan, Kim Kisslinger, Rakesh Agrawal
Summary: In this work, solution-processed Se-Te alloy thin films were successfully fabricated using an amine-thiol solvent system. By controlling the Se/Te ratios, films with different compositions were obtained, showing variation in band gaps. The addition of foreign solvents improved the film quality, and preliminary devices showed promising photovoltaic performance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yanzhou Chang, Jiarun Huang, Sujiang Shi, Ligeng Xu, Hao Lin, Tianfeng Chen
Summary: In this study, a universal method for synthesizing nanoradiosensitizers with well-controlled structure and multifunctionality is developed to address the challenges of cancer radiotherapy. Dumbbell-shaped TeSe nano-heterojunctions exhibit better radio-sensitizing activities and can degrade to highly toxic metabolites in acidic environment, depleting GSH within tumor to facilitate radiotherapy. Furthermore, the combination of TeSe nano-heterojunctions with radiotherapy reshapes the immunosuppressive microenvironment and induces robust T lymphocytes-mediated antitumor immunity, resulting in great abscopal effects on combating distant tumor progression. This study provides a universal method for preparing nanoradiosensitizers and overcoming the clinical challenges of cancer radiotherapy.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Kaijin Liu, Jiaxue Niu, Ling Liu, Fangzhen Tian, Hongmei Nie, Xiaoyu Liu, Ke Chen, Ruoli Zhao, Si Sun, Menglu Jiao, Maoye Tian, Xinyu Sun, Lanfei Niu, Xinyi Sun, Hao Wang, Wei Long, Liefeng Feng, Xiaoyu Mu, Xiao-Dong Zhang
Summary: Chitosan-coated Se nanozymes were developed with 23-fold higher antioxidative activity than Trolox, and bovine serum albumin-coated Te nanozymes showed stronger prooxidative biocatalytic effects. This work provides a new strategy for improving the catalytic activities of Se and Te nanozymes.
Article
Materials Science, Ceramics
Ying Zhang, Meng Hu, Wei Zhang, Xiaona Zhang
Summary: In this study, Se-doped and Te-doped MBG nanoparticles were successfully synthesized, demonstrating similar structure and properties as expected, such as drug sustained release, anticancer, and antibacterial properties.
CERAMICS INTERNATIONAL
(2022)
Review
Chemistry, Multidisciplinary
Xianglong Huang, Jiachen Sun, Liping Wang, Xin Tong, Shi Xue Dou, Zhiming M. Wang
Summary: This review discusses the recent research advances on potassium-chalcogen (S, Se, Te) batteries and their cathode materials, focusing on the development of cathode materials for four types of potassium batteries. Critical challenges for chalcogen-based electrodes in devices operation are summarized, and pragmatic strategies are proposed to solve these issues. The perspectives on designing advanced cathode materials for potassium-chalcogen batteries are provided with the goal of developing high-performance potassium storage devices.
Article
Green & Sustainable Science & Technology
J. Azadmanjiri, L. Dekanovsky, Z. Sofer
Summary: In this research, different hybrid nanostructures were synthesized by annealing Ti3C2Tx with pre-selected group VI chalcogen elements. Among them, the Te/Ti3C2Tx supercapacitor showed the highest specific capacitance (150.6 F/g), as well as good cycling stability and energy density. These improvements were attributed to the formation of TiO2 and the large polarizability of the Te element.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Spectroscopy
Barbora Baranova, Zuzana Krarova, Milan Svoboda, Vit Suchopar, Sebastian Burhenn, Sebastian Brandt, Joachim Franzke, Jan Kratzer
Summary: The performance of hydride atomizers based on dielectric barrier discharge (DBD) was assessed using atomic absorption spectrometry. Two designs of DBD atomizers with different electrode structures and power sources were compared. Nafion tubes were identified as effective gas phase dryers. Sensitivity varied among different analytes and atomizer configurations, with the best performance observed in a DBD atomizer with sputtered electrodes and square-wave modulation of high voltage.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Hirokazu Narita, Motoki Maeda, Chiharu Tokoro, Tomoya Suzuki, Mikiya Tanaka, Hideaki Shiwaku, Tsuyoshi Yaita
Summary: In this study, the mechanism of Se(iv) and Se(vi) extraction from aqueous HCl solutions by EHBAA was investigated. The extraction behavior and structural properties of the dominant Se species in solution were examined. It was found that Se(vi) was reduced to Se(iv) in 8 M HCl, and around 50% of Se(vi) was extracted from 0.5 M HCl using 0.5 M EHBAA. On the other hand, Se(iv) was hardly extracted from 0.5 to 5 M HCl, but the extraction efficiency increased drastically above 5 M, reaching approximately 85%. The apparent stoichiometries of Se(iv) or Se(vi) to EHBAA were 1:1 and 1:2, respectively.
Article
Chemistry, Medicinal
Andreina Henriquez-Figuereo, Cristina Moran-Serradilla, Eduardo Angulo-Elizari, Carmen Sanmartin, Daniel Plano
Summary: Neglected tropical diseases (NTDs) are a group of infectious diseases caused by protozoa, with a high incidence and prevalence in developing countries. Economic factors hinder the management of these diseases, and there is a lack of effective drugs and high costs. This study aims to identify novel chalcogen-derived molecules against Chagas disease, leishmaniasis, and human African trypanosomiasis (HAT).
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Jabed Hossain, Nasrina Parvin, Brij Kumar Shah, Shabana Khan
Summary: In this study, bulky ligand supported chlorogermylene and chlorostannylene compounds were synthesized, and heavy ketones were obtained through reactions with elemental selenium and tellurium. The compounds were characterized using multinuclear NMR techniques and single-crystal X-ray diffraction studies.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2022)
Article
Metallurgy & Metallurgical Engineering
Jian Liu, Yan Hong, Guo Lin, Shixing Wang, Libo Zhang
Summary: This study proposes an environmentally friendly process for recovering selenium from copper anode slime, a resourceful solid waste. The ultrasonic selenium leaching efficiency reached 98.2% under the optimum conditions, whereas the deseleniumization efficiency of conventional leaching was only 57.5%. The ultrasonic leaching process improved the leaching efficiency by fully breaking the raw ores.
Article
Nuclear Science & Technology
Farnaz Mahmoudiani, Saeed Alamdar Milani, Faramarz Hormozi, Ali Yadollahi
Summary: This study developed a mathematical model based on response surface methodology (RSM) for liquid-liquid extraction and separation of Selenium and Tellurium from aqueous nitric acid solution using Cyanex 301 as an organic extractant. The model identified with central composite design (CCD) examined the impacts of nitric acid concentration, Cyanex 301 concentration, and extraction temperature on the extraction percentage of Se(IV) and Te(IV). The results indicated that Cyanex 301 concentration was the most crucial variable and an optimal condition for selective extraction was achieved at specific concentrations and temperature, proving the effectiveness of the model in optimizing the extraction conditions.
PROGRESS IN NUCLEAR ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Yuqing Cao, Feifei Lei, Yunliang Li, Yifang Fu, Jun Zhao, Shilun Qiu, Zongtao Zhang
Summary: This study fabricated a metal-organic solid derived carbon host with multiple heterogeneous NiSe2/Ni2Co/CoSe2 interfaces via in situ selenization, introducing additional electrochemically active sites and accelerating reaction kinetics for the development of Se cathodes. The synergistic mechanism of multiple heterostructures composed of a Ni2Co alloy and in situ derived bimetallic selenides was revealed, providing new insights into the exploitation of energy storage materials.
Article
Chemistry, Inorganic & Nuclear
Reza Shirmehenji, Sepideh Javanshir, Moones Honarmand
Summary: This study focused on producing selenium nanoparticles from mining waste that contains high amounts of selenium, using an eco-friendly approach involving fruit extracts. Orange extract was found to be an effective reducing agent and stabilizer for green synthesis of SeNPs. The biosynthesized SeNPs exhibited a spherical morphology with particle sizes ranging from 70 to 80 nm.
JOURNAL OF CLUSTER SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Jiafei Yi, Keke Cheng, Guozheng Zha, Kai Fan, Shaoxiong Li, Xiangfeng Kong, Bin Yang, Dachun Liu, Baoqiang Xu
Summary: A novel, green, and efficient vacuum gasification process was developed in this study to separate and enrich tellurium from lead anode slime. Through high-temperature and low-temperature vacuum distillation experiments, the optimal gasification temperature and time were determined, leading to the successful separation of tellurium with a Te content of 4.80% in the volatiles. Tellurium was enriched more than 16 times in the volatiles, providing an excellent raw material for further purification.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
