Article
Materials Science, Multidisciplinary
Jun Guo, Yu-Ke Zhu, Lin Chen, Zi-Yuan Wang, Zhen-Hua Ge, Jing Feng
Summary: In this study, Bi2S3 with high electrical transport properties was synthesized via Se and Cl co-doping. The significantly improved electrical conductivity and power factor of the material make it a promising candidate for thermoelectric applications at medium temperatures, with a high ZT value and conversion efficiency.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Polymer Science
Wei Cao, Liangxiao Tan, Hong Wang, Jiayin Yuan
Summary: Dual-cationic PIL homopolymers carrying both imidazolium and 1,2,4-triazolium moieties were synthesized by exploiting the reactivity difference, leading to the expansion of their application spectrum.
Article
Materials Science, Multidisciplinary
Le N. M. Dinh, Bich Ngoc Tran, Vipul Agarwal, Per B. Zetterlund
Summary: This study explores the effects of different preparation methods on polymer nanocomposite materials, and finds that the stability and physical properties of the nanocomposite films are greatly influenced by the preparation method and compositional details.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Physical
Xing Yang, Jun Guo, Zi-Yuan Wang, Wen-Hao Gu, Quan Shan, Jing Feng, Zhen-Hua Ge
Summary: Low thermal conductivity and high Seebeck coefficient have made Bi2S3-based materials promising for thermoelectric applications. By co-doping with Se and Cl, nanostructured Bi2S3 bulks were prepared, leading to improved power factor and reduced thermal conductivity. As a result, the Bi2S3 samples exhibited enhanced thermoelectric efficiency at high temperatures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Takumi Watanabe, Akira Itoh, Tomohisa Watanabe, Takeshi Kizaki, Masayasu Inaguma, Atushi Hosoi, Hiroyuki Kawada
Summary: By conducting post-synthesis treatments such as polymer solution impregnation, graphitization, and iodinemonochloride/dichloromethane doping, the electrical properties of CNT yarns can be significantly enhanced. The two-step treatment of GT and ICl/DCM doping shows the most significant improvement in the conductivity and current capacity of the CNT yarns. The purification of the crystalline structure through these treatments is crucial in increasing the electron carrier density and improving the electrical properties.
Article
Nanoscience & Nanotechnology
Liangliang Yu, Jingxuan Yin, Chengwei Gao, Changgui Lin, Xiang Shen, Shixun Dai, Qing Jiao
Summary: In this study, a series of halogen-doped Na3SbS4 samples were synthesized using the solid-state method, and the relationship between crystal structure and Na+ ion conductivity was investigated through X-ray diffraction and Raman spectroscopy. The symmetric sodium battery assembled with the Na2.85SbS3.85Br0.15 electrolyte showed stable cycling for over 100 hours at room temperature with a current density of 0.1 mA/cm(2). This research provides a method to manufacture novel solid sodium electrolytes by exploring the effect of halogen doping in Na3SbS4.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Chemistry, Multidisciplinary
Shisong Nie, Zaifang Li, Yuyuan Yao, Yingzhi Jin
Summary: PEDOT, the most popularly used conductive polymer, is favored for its high conductivity, stability, transparency, and easy processing. Its synthesis methods, including chemical polymerization, electrochemical polymerization, and transition metal-mediated coupling polymerization, play a crucial role in determining its properties and applications. Future research directions to acquire high-quality PEDOT are also discussed in this review.
FRONTIERS IN CHEMISTRY
(2021)
Article
Materials Science, Composites
Mengmeng Yan, Xiaogang Chen, Yangyang Xu, Yu Pan, Jinlei Li, Junli Li, Ting Wu, Huanli Zheng, Xiaoxiao Chen, Jianxin He
Summary: Thermal management materials with high thermal conductivities, heat resistances, and excellent mechanical properties are needed for modern electronic power systems. This study synthesized para-aramid nanofibers using a greener method and combined them with water-dispersible reduced graphene oxide to create a highly thermally conductive composite membrane. The composite membrane showed high thermal conductivity and tensile strength, making it suitable for high-temperature applications. Additionally, it demonstrated excellent thermal management performance in reducing surface temperature of LED lamps.
COMPOSITES COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
Ichiro Imae, Katarzyna Krukiewicz
Summary: This review discusses the progress in the research of self-doped conducting polymers (CPs), particularly in the field of biomedical applications. By modifying the chemical structure of CPs to exhibit a self-doping effect, their functionality can be enhanced. The review introduces available structure modifications, describes the physicochemical characteristics of these materials, and focuses on their conductivity and biological properties.
BIOELECTROCHEMISTRY
(2022)
Article
Materials Science, Ceramics
Lirou Su, Jiaxiong Xu
Summary: In this study, heterovalent Al doping was proposed as a method to improve the electrical properties of CZTS thin film. Partial substitution of Sn by Al and controlling the Al doping content can enhance the crystalline quality, reduce the defect density and strain, and improve the surface compactness of CZTS thin film. Increasing the Al doping content can increase the carrier concentration and conductivity of CZTS, while suppressing non-radiative recombination. Therefore, heterovalent Al doping was found to be an effective method to regulate the electrical properties of CZTS thin film.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Chemical
Mirza Nadeem Ahmad, Sohail Nadeem, Raya Soltane, Mohsin Javed, Shahid Iqbal, Zunaira Kanwal, Muhammad Fayyaz Farid, Sameh Rabea, Eslam B. Elkaeed, Samar O. Aljazzar, Hamad Alrbyawi, Walid F. Elkhatib
Summary: The poly(o-anisidine)/BaSO4 nanocomposites were prepared and characterized for their potential antibacterial properties. The properties of the nanocomposites were tunable by changing the ratio of BaSO4 filler, and the interaction between POA and BaSO4 was confirmed by FTIR analysis. The nanocomposites exhibited good absorption behavior in UV-visible spectra. Moreover, the POA/BaSO4 nanocomposites showed effective antibacterial activity against Staphylococcus aureus and Pseudomonas aeruginosa.
Article
Polymer Science
Sanhanut Kesornsit, Chatrawee Direksilp, Katesara Phasuksom, Natlita Thummarungsan, Phimchanok Sakunpongpitiporn, Kornkanok Rotjanasuworapong, Anuvat Sirivat, Sumonman Niamlang
Summary: Poly(3-hexylthiophene) (P3HT) was synthesized by chemical oxidative polymerization using ferric chloride (FeCl3) as the oxidizing agent and various surfactants as shape templates. The effects of mole ratios, polymerization times, and surfactant types and concentrations on the electrical conductivity and particle properties were investigated. The results showed that P3HT synthesized with dodecylbenzenesulfonic acid (DBSA) at Critical Micelle Concentration (CMC) 6 had the highest electrical conductivity and particle size of 1530 +/- 227 nm. The thermal analysis revealed that surfactant-synthesized P3HT had higher stability and char yields. The electrical conductivity of DBSA-synthesized P3HT was further enhanced by doping with HClO4.
Article
Engineering, Environmental
Sumit Chahal, Akhil K. Nair, Soumya Jyoti Ray, Jiabao Yi, Ajayan Vinu, Prashant Kumar
Summary: Graphene, the miracle material of the 21st century, possesses extraordinary physico-chemical properties. This study reports on the successful microwave doping of graphene with phosphorus and sulfur atoms, resulting in high doping levels and the emergence of ferromagnetism and spin polarization. This novel doping strategy holds great potential for the development of graphene-based spintronic chips.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Yang Lu, Zi-Di Yu, Hio-Ieng Un, Ze-Fan Yao, Hao-Yang You, Wenlong Jin, Liang Li, Zi-Yuan Wang, Bo-Wei Dong, Stephen Barlow, Elena Longhi, Chong-an Di, Daoben Zhu, Jie-Yu Wang, Carlos Silva, Seth R. Marder, Jian Pei
Summary: A simple solution-based co-deposition method has been reported to achieve high conductivity n-doped polymers. These polymers exhibit surprising structural tolerance and excellent miscibility with commonly used n-dopants, allowing high concentrations and high mobility of charge carriers simultaneously, resulting in excellent electrical conductivity and thermoelectric performance.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Prosper Ngabonziza, Rotraut Merkle, Yi Wang, Peter A. Aken, Tor S. Bjorheim, Joachim Maier, Jochen Mannhart
Summary: Ionically conducting oxide heterostructures are ideal for studying interfacial effects in solid state ionics, and 2D doping has not been applied in ion conductors before. In this study, epitaxial BaZrO3-BaYOx heterostructures and 2D doping of BaZrO3 by yttrium were reported, with effects on proton conductivity studied. This research not only provides fundamental insight into 2D doping of ion conductors, but also has the potential to improve protonic devices.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Medicinal
Drashti G. Daraji, Dhanji P. Rajani, Smita D. Rajani, Edwin A. Pithawala, Sivaraman Jayanthi, Hitesh D. Patel
Summary: In this study, a series of new imidazole derivatives were synthesized and tested for their antibacterial activity. The 12l compound showed high potency against various bacterial strains including ESBL, VRE, and MRSA. Through ADME studies and molecular docking research, it was found that these synthetic compounds have good drug-likeness properties and promising binding modes with the protein.
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
(2021)
Review
Chemistry, Organic
Dhaval B. Patel, Jagruti A. Parmar, Siddharth S. Patel, Unnati J. Naik, Hitesh D. Patel
Summary: The synthesis of ester-containing heterocyclic compounds through multicomponent reaction is a preferable process in synthetic organic and medicinal chemistry. The development of new synthetic methods for ester synthesis is necessary, considering the drawbacks of some existing methods. Multicomponent reactions are a powerful tool for one-pot ester synthesis, and recent developments in this area have been reviewed in this article.
CURRENT ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
H. P. Vankar, V. A. Rana, S. Dey, H. D. Patel, V. K. Jain
Summary: The study investigated the complex permittivity spectra of binary mixtures of 3-bromoanisole (3-BA) and methanol (MeOH) over a wide microwave frequency range, and analyzed molecular interactions using dielectric relaxation models. The temperature and concentration dependent static permittivity provided information about molecular alignment and cross-linkage in liquid mixtures.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Review
Chemistry, Physical
Prachi T. Acharya, Zeel A. Bhavsar, Divya J. Jethava, Dhaval B. Patel, Hitesh D. Patel
Summary: This study focuses on the synthesis and biological activities of new thiosemicarbazide derivatives in recent years, highlighting highly effective and selective thiosemicarbazide analogues as well as structure-activity relationship studies.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Organic
Drashti G. Daraji, Dhanji P. Rajani, Sivaraman Jayanthi, Hitesh D. Patel
Summary: In recent years, the development of new drugs as antibacterial agents has been a crucial resolution to combat drug-resistant pathogens. Imidazole derivatives were synthesized and characterized for their antimicrobial activity, with some showing potential against clinically relevant strains. Additionally, these compounds were also evaluated for their antituberculosis and antimalarial activities.
JOURNAL OF HETEROCYCLIC CHEMISTRY
(2022)
Article
Chemistry, Organic
Prachi T. Acharya, Zeel A. Bhavsar, Divya J. Jethava, Dhanji P. Rajani, Edwin Pithawala, Hitesh D. Patel
Summary: The antimicrobial, anti-tubercular, antimalarial, and antioxidant properties of a series of benzimidazole hybrid thiosemicarbazide derivatives were investigated in vitro. The majority of the compounds studied showed excellent antibacterial and antioxidant properties. In addition, an in silico investigation was conducted to assess the pharmacokinetic properties of the synthesized compounds, indicating their potential for developing novel active drugs.
JOURNAL OF HETEROCYCLIC CHEMISTRY
(2022)
Article
Geochemistry & Geophysics
Bimalkumar Patel, R. K. Sarangi, Apurva Prajapati, Bhargav Devliya, Hitesh Patel
Summary: TSM is an essential parameter that impacts the biogeochemistry of the ocean. This study aims to develop a TSM algorithm using remote sensing to monitor TSM concentration in the coastal waters of Gujarat. The developed algorithm showed good performance and was successfully validated with in situ data.
Article
Chemistry, Physical
Siddharth S. Patel, Dhaval B. Patel, Akhil K. Poddar, Jitesh B. Patel, Dharmarajsinh N. Rana, Kirti P. Patel, Shweta P. Thakar, Hitesh D. Patel
Summary: Nitration of aromatic compounds is an important transformation in synthetic organic chemistry. We have developed copper phthalocyanine tetrasulfonic acid as a biodegradable and recyclable solid acid catalyst for aromatic nitration. This catalyst has excellent catalytic activity and can be recycled after completion of the reaction, making the method more efficient, greener, and safer than conventional methods.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Biochemistry & Molecular Biology
Kajalben B. Patel, Dhanji Rajani, Iqrar Ahmad, Harun Patel, Hitesh D. Patel, Premlata Kumari
Summary: Ten chrysin-based pyrimidine-piperazine hybrids were evaluated for their antimicrobial activity against bacterial and fungal strains. The compounds exhibited moderate to good inhibition, with MIC values ranging from 6.25 to 250 ug/ml. Compounds 5b and 5h showed promising potency against E. coli, surpassing commonly used antibiotics. Compound 5g also displayed strong efficacy against a fungal strain.
MOLECULAR DIVERSITY
(2023)
Article
Chemistry, Inorganic & Nuclear
Manoj N. Bhoi, Mayuri A. Borad, Ankita P. Solanki, Hitesh D. Patel
Summary: A highly efficient and convergent synthesis of fourteen single isomer derivatives of ethyl-2-methyl-4-(pyridin-2-yl)-4H-benzo[4,5]thiazolo[3,2-a]pyrimidine-3-carboxylate has been developed via a one-pot, three-component reaction. The synthesis was catalyzed by D-(+)-10-camphorsulphonic acid (D-(+)-10-CSA) and achieved good yields (up to 82%) and excellent enantioselectivities (84-99%ee). The final compounds demonstrated enhanced antibacterial properties compared to the standard drug.
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS
(2023)
Article
Marine & Freshwater Biology
Bimalkumar Patel, Apurva Prajapati, Ranjit Kumar Sarangi, Bhargav Devliya, Hitesh D. Patel
Summary: The nutrient concentrations in seawater from different locations along the Gujarat coast were analyzed. The results showed higher concentrations of nitrate, silicate, and orthophosphate in southern Gujarat, which could be attributed to nitrification and eutrophication caused by the gulf, estuary zone, heavy sedimentation, and industrial fluxes. Further research on eutrophication in the southern Gujarat coastal region is recommended.
Review
Pharmacology & Pharmacy
Dushyant D. Kotadiya, Piyushkumar Patel, Hitesh D. Patel
Summary: The cellular membrane poses a challenge to drug delivery, but cell-penetrating peptide (CPP) offers a promising solution with its efficient internalization and low toxicity. CPP-cargo complex effectively delivers chemotherapeutic agents and addresses limitations of current therapies. However, no CPP complex is approved by the US FDA. This review discusses CPP as a delivery vehicle, cellular uptake mechanism, design strategies, and recent market status.
CURRENT DRUG DELIVERY
(2023)
Article
Marine & Freshwater Biology
Ranjit Kumar Sarangi, S. N. N. Jaiganesh, Bimalkumar R. Patel, Apurva Prajapati, Hitesh D. Patel
Summary: In this study, in situ sampling and analysis were conducted in the northeast Arabian Sea, specifically in Diu and Daman coastal waters, to assess water quality and bio-optical parameters. The objective was to develop a particulate organic carbon (POC) algorithm using in situ and hyperspectral radiometer data. Correlation analyses and 3-dimensional correlations were performed to determine the relationship between POC and remote sensing reflectance (R-rs) measurements. The results showed the importance of regional POC algorithms based on sufficient in situ data points.
Article
Chemistry, Multidisciplinary
Siddharth S. Patel, Dhaval B. Patel, Akhil K. Poddar, Jitesh B. Patel, Dharmarajsinh N. Rana, Kirti P. Patel, Hitesh D. Patel
Summary: In this article, a new method for the selective reduction and esterification of aromatic carboxylic acids was introduced, utilizing a solid acid catalyst CuPcS and sodium borohydride in THF. This method offers advantages such as shortened reaction times, improved safety conditions, and easy recycling of CuPcS, contributing to increased efficiency and sustainability in the esterification process.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Polymer Science
Zhongming Yuan, Hiroko Yamamoto, Shinji Kanehashi, Takeshi Shimomura
Summary: This study reports the synthesis of a flexible light-emitting polymer film using a solution blending method. The selective positioning of MEH-PPV molecules in the PS phase of the film was confirmed. The film exhibited a nanometer-scale luminescent domain with low aggregation quenching and showed good elastomeric characteristics.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2024)
