Article
Chemistry, Multidisciplinary
Roman A. Barmin, Polina G. Rudakovskaya, Olga Gusliakova, Olga A. Sindeeva, Ekaterina S. Prikhozhdenko, Elizaveta A. Maksimova, Ekaterina N. Obukhova, Vasiliy S. Chernyshev, Boris N. Khlebtsov, Alexander A. Solovev, Gleb B. Sukhorukov, Dmitry A. Gorin
Summary: Microbubbles with hybrid structures containing albumin, albumin-coated gold nanoparticles, and photodynamic dyes were successfully developed for multimodal imaging and potential applications in photodynamic therapy. The combination of gold nanoparticles and photodynamic dyes enhanced the stability and fluorescent signal of the probes, showcasing their potential in theranostics.
Article
Chemistry, Multidisciplinary
Indra Memdi Khoris, Akhilesh Babu Ganganboina, Tetsuro Suzuki, Enoch Y. Park
Summary: By co-precipitating the chromogen TMB in aqueous solution, collective nanoparticles TMB-NPs were formed and enriched in PLGA nanovesicles using a molecular delivery approach. The developed colorimetric sensor demonstrated high sensitivity in detecting influenza virus and other respiratory viruses, showcasing practical applications for airborne virus detection.
Article
Environmental Sciences
Yingji Wu, Xin Jin, Elham Ashrafzadeh Afshar, Mohammad Ali Taher, Changlei Xia, Sang-Woo Joo, Tebogo Mashifana, Yasser Vasseghian
Summary: Developing a simple, applicable, and reliable fluorescence sensor is crucial for the detection of the anticancer drug raloxifene (RAF). The sensor, which utilizes gold nanoparticles embedded in chitosan hydrogel, demonstrates high selectivity, fast-response, and high sensitivity. It can detect trace amounts of RAF within a linear range of 5 x 10(-7) to 5 x 10(-5) M, with a detection limit of 34 x 10(-8) M and a quantification limit of 11 x 10(-7) M. The sensor shows satisfactory recoveries between 97.5% and 109% when applied to biological and environmental samples.
Article
Chemistry, Multidisciplinary
Sylvie Egloff, Nina Melnychuk, Elisabete Cruz Da Silva, Andreas Reisch, Sophie Martin, Andrey S. Klymchenko
Summary: The study introduces a method named AmpliFISH for RNA imaging, utilizing small and ultrabright dye-loaded polymeric nanoparticles (NPs) functionalized with DNA. The optimized NPs enabled sequence-specific imaging of different mRNA targets and multiplexed detection of three mRNA targets simultaneously. AmpliFISH provided a stronger signal and shorter processing time compared to commercial locked nucleic acid (LNA)-based FISH technique.
Article
Chemistry, Analytical
Shuang Xia, Wenli Wu, Fangchao Yin, Jianguo Shi, Yaohong Ma, Jin-Ming Lin, Xu Wu, Qiongzheng Hu
Summary: A smartphone-based colorimetric assay is developed in this study, which utilizes the aggregation of gold nanoparticles (AuNPs) and rolling circle amplification (RCA) on magnetic beads (MBs) for the detection of adenosine. By utilizing specific aptamer recognition, in-situ RCA on MBs, magnetic separation, and smartphone-based portable device, this assay achieves a low limit of detection (LOD) for adenosine of 16 pM and works well in human serum.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Analytical
Qian Li, Jing Yang, Wenzhan Yu, Liqiong He, Renlong Zhou, Changming Nie, Lifu Liao, Xilin Xiao
Summary: Two novel optical sensors using Fe(iii) Salophen complex and Eu(iii) Salophen complex were created to detect Monocrotophos (MP), a dangerous organophosphorus pesticide. The Fe(iii) Salophen complex sensor selectively binds MP and generates a strong resonance light scattering signal, while the Eu(iii) Salophen complex sensor forms a sandwich-type supramolecule with MP. Both sensors showed good performance in detecting MP content in tap water and camellia.
ANALYTICAL METHODS
(2023)
Article
Chemistry, Analytical
Shan Pu, Haifeng Sun, Xiandeng Hou, Kailai Xu
Summary: A colorimetric assay for the determination of trace arsenic was proposed in this work, based on the synergistic effect of arsine and iodide. The method is simple, stable, sensitive, and selective, providing a convenient and cost-effective choice for on-site trace arsenic detection. The whole analysis process can be completed in 30 minutes without complicated synthesis and pretreatment.
ANALYTICA CHIMICA ACTA
(2021)
Article
Materials Science, Multidisciplinary
Zuo-Qin Liang, Zhi-Yang Zou, Xu Yan, Xiao-Bo Zhang, Dong-Dong Song, Chang-Qing Ye, Xiao-Mei Wang, Xu-Tang Tao
Summary: The introduction of tetraphenylethene group into cyanine dye is found to enhance the upconversion luminescence of dye-sensitized UCNPs. By inhibiting the tight packing of cyanine dyes and increasing the fluorescence quantum yield, a 135-fold enhancement of upconversion luminescence is achieved. Furthermore, triethylamine is shown to further increase the upconversion luminescence.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Pranjali Yadav, Shubhra Chaturvedi, Samir Kumar Biswas, Rohit Srivastava, Kamalakannan Kailasam, Anil Kumar Mishra, Asifkhan Shanavas
Summary: This study developed a new type of nanoassembly material that can biodegrade under physiological conditions, demonstrating excellent biocompatibility and significant photothermal efficiency. The material has great potential for therapeutic applications and can be used in various medical imaging techniques.
Article
Spectroscopy
Qianqian Zhu, Jingjing Du, Suxiang Feng, Jianjun Li, Ran Yang, Lingbo Qu
Summary: The study developed a highly effective fluorescence resonance energy transfer (FRET) system by stabilizing CdTe quantum dots (QDs) with cysteamine (CA) and gold nanoparticles (AuNPs) with sodium citrate. Under optimal conditions, the addition of glutathione (GSH) led to the disruption of the FRET system, resulting in the recovery of CdTe fluorescence. The sensing system showed a promising future for highly sensitive and selective GSH detection in human blood plasma samples, with a recovery rate of 99.5-102.3%.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Ying He, Fangxin Hu, Jinwen Zhao, Guomin Yang, Yuanyuan Zhang, Shihong Chen, Ruo Yuan
Summary: A novel dual-signal combined nanoprobe with two different types of nanoparticles as ECL probes and hydrogen peroxide as a bifunctional moderator was designed for enzyme sensing analysis. In the presence of organophosphorus compounds, enzyme activity was inhibited, leading to changes in ECL signals. This integrated system provides a new pathway for ratiometric ECL systems involving enzyme catalytic amplification.
ANALYTICAL CHEMISTRY
(2021)
Review
Chemistry, Multidisciplinary
Clemence Cheignon, Ali A. Kassir, Lohona K. Soro, Loic J. Charbonniere
Summary: This article reviews the application of lanthanide complexes in spectroscopy. By utilizing the antenna effect brought by organic ligands, the low brightness caused by forbidden Ln electronic transitions can be overcome. Furthermore, the design progress of nano-objects with multiple lanthanide ions and their spectroscopic properties are discussed.
Article
Chemistry, Analytical
Elizaveta P. Morozova, Tatiana E. Smoliarova, Kirill A. Lukyanenko, Maria A. Kirillova, Mikhail N. Volochaev, Anna S. Kichkailo, Rajeev Ranjan, Valentina A. Kratasyuk
Summary: The assessment of microbial contamination is crucial for ensuring food safety. A modern method for evaluating contamination is estimating ATP using firefly luciferase. This study found that gold nanoparticles stabilized with benzalkonium chloride and Triton X-100 enhanced the bioluminescent system, resulting in higher sensitivity for developing an ATP biosensor.
Article
Food Science & Technology
Shiqian Fu, Xinyan Yang, Lidong Pang, Shasha Cheng, Danliangmin Song, Xue Qin, Chaoxin Man, Yujun Jiang
Summary: In this study, a novel fluorescence aptasensor was developed for rapid and sensitive detection of Salmonella Typhimurium (S. Typhimurium). The aptasensor exhibited high selectivity and sensitivity, and showed excellent application for detection in artificially contaminated milk.
Article
Nanoscience & Nanotechnology
Din Zelikovich, Pavel Savchenko, Daniel Mandler
Summary: Researchers have developed a promising method for selectively detecting amino acid gold nanoparticles. By adsorption, filling, and electrochemical dissolution, they were able to create nanocavities with the shape of the nanoparticles. Spectroscopic and electrochemical studies revealed the interactions between the nanoparticles and the matrix. These findings have implications for the selective and simple sensing of nanoparticles.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Biochemistry & Molecular Biology
Arijita Basu, Priyanka Upadhyay, Avijit Ghosh, Aparajita Bose, Payal Gupta, Sreya Chattopadhyay, Dipankar Chattopadhyay, Arghya Adhikary
Summary: HA-GO-Met nanoparticles exhibit significant anti-cancer efficacy in triple negative breast cancer, inducing apoptosis and inhibiting cell migration by targeting the miR-10b/PTEN axis via NFkB-p65. They also reduce tumor load and overall toxicity, inhibit epithelial mesenchymal transition and stemness, addressing the issue of cancer recurrence.
BIOCHIMICA ET BIOPHYSICA ACTA-GENERAL SUBJECTS
(2021)
Article
Materials Science, Multidisciplinary
Amartya Bhattacharyya, Soumitra Ghorai, Dipak Rana, Indranil Roy, Gunjan Sarkar, Nayan Ranjan Saha, Jonathan Tersur Orasugh, Sriparna De, Sourav Sadhukhan, Dipankar Chattopadhyay
Summary: A nanocomposite of activated carbon and graphene oxide has shown significant improvement in adsorption of methylene blue dye compared to individual components, with an adsorption capacity of up to 1000 mg/g. This improvement is attributed to a combination of electrostatic attraction and adsorption through AC surface pores, making it a promising material for water decontamination.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Amit Mallik, I Roy, D. Chalapathi, C. Narayana, T. D. Das, A. Bhattacharya, S. Bera, S. Bhattacharya, Sriparna De, B. Das, D. Chattopadhyay
Summary: In this work, a single-step method using a pressure cooker for the synthesis of reduced graphene oxide (RGO)/SnO2 nanocomposite was described. The nanocomposite was characterized using various techniques and showed high capacity and efficiency in optical applications. The study indicates potential applications in semiconductor industries for this nanohybrid material.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Medicine, Research & Experimental
Ramkrishna Sen, Soumya Ganguly, Shantanu Ganguly, Mita Chatterjee Debnath, Subrata Chakraborty, Biswajit Mukherjee, Dipankar Chattopadhyay
Summary: Apigenin nanoparticles have shown potential anticancer effects in the treatment of melanoma, particularly in preventing lung metastasis. These nanoparticles, when surface-functionalized with meso-2,3-dimercaptosuccinic acid (DMSA), exhibited enhanced bioavailability and antitumor efficacy when administered orally. Additionally, DMSA-conjugated apigenin nanoparticles demonstrated increased cellular internalization and cytotoxicity, suggesting a promising approach for the treatment of melanoma lung metastasis.
MOLECULAR PHARMACEUTICS
(2021)
Article
Materials Science, Multidisciplinary
Neelam Singh, J. R. Ansari, Mrinal Pal, Avik Das, Debasis Sen, Dipankar Chattopadhyay, Anindya Datta
Summary: This research demonstrates a simple synthetic method to produce water-dispersible shape variant Co-reduced graphene oxide (RGO) hybrid nanocomposites, which overcome the limitations of high damping and dielectric loss of Co nanoparticles, achieving two plasmonic peaks. The prepared multifunctional optical materials show both UV and visible range plasmonic responses of Co nanoparticles.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Anil Chamuah, Koyel Bhattacharya, Mir Sahidul Ali, Chandan Kumar Ghosh, Dipankar Chattopadhyay, Sanjib Bhattacharya
Summary: The development of some Ag2S mixed chalcogenide glassy systems and their microstructure correlations with electrical transport properties have been discussed, with various nanophases and defects identified through XRD studies. The enhancement of structural vibrations due to optical phonon frequency and the explanation of increased density of states near the Fermi level at different temperatures were highlighted. The glassy structure is expected to expand to reduce scattering cross-section and achieve higher N(E-F) values at elevated temperatures.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Engineering, Environmental
Zitong Xu, Siwei Gu, Dipak Rana, Takeshi Matsuura, Christopher Q. Lan
Summary: The study investigated the removal of Pb2+ ions by chemical precipitation enabled membrane filtration (CPEMF) using microfiltration (MF) and ultrafiltration (UF) membranes. Optimal conditions of 1 mM DIC and pH 8.5 were found to bring the permeate lead level below the drinking water standard, demonstrating the effectiveness of CPEMF in removing lead ions from water.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Materials Science, Biomaterials
Koushik Dutta, Sriparna De, Beauty Das, Suman Bera, Biswanath Guria, Mir Sahidul Ali, Dipankar Chattopadhyay
Summary: A novel electrochemical immunosensor based on N-GQD and SWCNHs was developed for detecting the cancer biomarker AFP. The nanocomposite architecture N-GQD@SWCNHs served as an excellent base for antibody immobilization, showing broad dynamic range and low detection limit with high selectivity, stability, and reproducibility. AFP measurements in human serum demonstrated outstanding recovery, highlighting the potential role of the sensor for early clinical screening of cancer biomarkers.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2021)
Review
Biotechnology & Applied Microbiology
Jit Sarkar, Deepanjan Mridha, Joy Sarkar, Jonathan Tersur Orasugh, Bhuman Gangopadhyay, Dipankar Chattopadhyay, Tarit Roychowdhury, Krishnendu Acharya
Summary: Agricultural waste management is a significant challenge in the 21st century, but converting agricultural wastes into value-added products like nanosilica can help reduce pollution. Silica nanoparticles (SiNPs) synthesized from agricultural wastes, particularly cereal crops, have proven to be versatile with advantages like biocompatibility and adjustable functionalization, making them attractive for use in various fields.
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
(2021)
Review
Engineering, Environmental
Adrija Ghosh, Jonathan Tersur Orasugh, Dipankar Chattopadhyay, Sayanti Ghosh
Summary: Researchers are increasingly concerned about the presence of endocrine-disrupting chemicals in the environment, with electrospun nanofibres playing a significant role in adsorption, filtration, detection, and degradation of these harmful chemicals. These nanofibres have the potential to help address the challenges in treating EDCs.
GROUNDWATER FOR SUSTAINABLE DEVELOPMENT
(2022)
Article
Materials Science, Multidisciplinary
Arpita Adhikari, Jyotishka Nath, Dipak Rana, Sriparna De, Mukut Chakraborty, Pradip Kar, Amit K. Chakraborty, Dipankar Chattopadhyay
Summary: A polypyrrole (PPY) nanoribbon based nanocomposite decorated with Ag metal (PPY-Ag) was successfully fabricated as a working electrode for electrochemical sensing of serotonin. The electrode showed fast, precise, selective, and sensitive determination of serotonin with a limit of detection as low as 0.01 nM.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Mir Sahidul Ali, Pritha Bhunia, Arpita Priyadarshini Samanta, Jonathan Tersur Orasugh, Dipankar Chattopadhyay
Summary: In recent years, there has been increasing focus on the fabrication and application of bio-based non-cytotoxic drug carriers. Cellulose nanocrystals (CNCs) have been extensively studied as a promising bioderived material in the biomedical field. This study aimed to develop a transdermal patch using CNCs as nanofillers and carriers for sustained delivery of ketorolac tromethamine (KT). The results showed that BNCs containing 1 wt% CNCs exhibited the best-sustained drug release profile.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Pharmacology & Pharmacy
Surya Kanta Dey, Ananya Pradhan, Tamanna Roy, Subhasis Das, Dipankar Chattopadhyay, Sujata Maiti Choudhury
Summary: This study reported the preparation of poly lactide-co-glycolide encapsulated diosgenin nanoparticles (PLGA-DGN NPs) and explored their potential in anticancer therapy. The results showed that PLGA-DGN NPs had appropriate size and morphology, high encapsulation efficacy and drug release. They exhibited significant antineoplastic activities both in vitro and in vivo. Furthermore, PLGA-DGN NPs demonstrated excellent pharmacokinetic profile, enhanced drug accumulation in tumor tissue, and good safety profile.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Arpita Adhikari, Somali Mukherjee, K. Amit Chakraborty, Suman Biswas, Arijita Basu, Mukut Chakraborty, Sanatan Chattopadhyay, Debasis Das, Dipankar Chattopadhyay
Summary: This study demonstrates the development of a low-cost polymer by doping polyaniline nanoribbons with lac-extract, which shows excellent fluorescence sensing properties against aqueous AsO43- and Fe3+ ions. The sensor exhibits high specificity and reversibility, making it a potential candidate for next-generation fluorescence sensors for water quality monitoring.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Chemistry, Applied
Arpita Priyadarshini Samanta, Mir Sahidul Ali, Jonathan Tersur Orasugh, Swapan Kumar Ghosh, Dipankar Chattopadhyay
Summary: Engaging potent drug delivery systems have profound effects on managing drug outcome and pharmacokinetic profile, including drug release rate, target site, bioavailability, and side effects. This research investigates the impact of reinforcing nanofillers on drug release and other properties of nanofiber-drug loaded systems. The experimental results demonstrate that the nanofiber structures with reinforced nanofillers exhibit excellent sustained drug release performance, making them suitable for transdermal drug delivery systems.
CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Zihan Ma, Lishuang Wang, Tingting Chen, Guangning Wang
Summary: In this study, two kinds of 3D self-doped (N/O) lilac-based and coriander-based porous carbons with high performance have been prepared.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Qin Wang, Yun-Fan Yan, Jiao-Lin Weng, Ying Huang, Fu Yang, Hao-Hui Xie, Fei Tan, Fa-Kun Zheng, Jian-Gang Xu
Summary: Balancing energy and mechanical sensitivities is a challenging issue in the field of energetic materials. This study constructed a 3D energetic metal-organic framework with nitrogen-rich ligand and NO3- anions. The framework demonstrated high stability, energy density, and excellent mechanical sensitivities, making it a potential insensitive energetic material.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Marrium Saeed, Urooj Kamran, Amina Khan, Md Irfanul Haque Siddiqui, Hasan Jamal, Haq Nawaz Bhatti
Summary: In this study, magnesium-aluminum layered double hydroxides (Mg-Al-LDH) were synthesized using an environmentally friendly hydrothermal technique for adsorbing the dye reactive green 5 (RG5). To improve the adsorption capability, composites were prepared by combining Mg-Al-LDH with low-cost Mangifera indica stone biomass (MISB). The results showed that the composites had high adsorption capacities for RG5 dye and could be regenerated.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Xuanlin Zhan, Xiaojie Li, Yunyan Zeng, Siyan Jiang, Chao Pan, Shiyu Pan, Jiaquan Huang, Heqian Zhang, Zhiwei Qin
Summary: This study reports on the potential prospects of natural products derived from the rhizosphere for the development of antibiotics and herbicides, as well as the advancements in cultivating a mutant strain that produces a substantial quantity of lydicamycins, a potent family for herbicide development.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Jie Zhu, Jiangtao Yu, Linhua Zhu, Xiaoxiao Yu, Jixing Liu, Yanhong Chao, Jingzhou Yin, Peiwen Wu, Jian Liu, Wenshuai Zhu
Summary: This study successfully demonstrates the 3D printing of attapulgite monoliths and investigates the influence of thermal treatment on their properties. The thermal treated monoliths show superior catalytic performance at low temperatures.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yanzhu Ye, Yixiang Ye, Jiannan Cai, Zhongshui Li, Shen Lin
Summary: In this paper, a novel Pt/CoP/C photo-electro synergistic catalyst was successfully synthesized and its performance was investigated. The catalyst exhibited excellent photo-electro catalytic performance, with significantly higher hydrogen production compared to a commercial catalyst. The introduction of cobalt phosphide and the existence of Co3O4 were identified as key factors for enhancing the catalytic activity.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nurul Hidayah Abu Bakar, Wan Norfazilah Wan Ismail, Hartina Mohd Yusop, Noreen Farzuhana Mohd Zulkifli
Summary: Hydrophobic coatings inspired by the lotus effect have gained popularity for their ability to solve various problems. The sol-gel method, utilizing silica, alumina, and titania, is explored as an environmentally friendly approach to produce water-based hydrophobic coatings. This study focuses on producing water-based hydrophobic coatings for cotton and polyester fabrics using a one-step sol-gel method. The coated fabrics exhibited improved hydrophobic properties, altered surface morphologies, and lower air permeability compared to uncoated fabrics. TEOS-PDMS coating provides a promising approach for enhancing the hydrophobic and surface properties of cotton and polyester fabrics.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nikita Belko, Hanna Maltanava, Anatol Lugovski, Polina Shabunya, Sviatlana Fatykhava, Evgeny Bondarenko, Pavel Chulkin, Sergey Poznyak, Michael Samtsov
Summary: This study investigates the difference in electrochemical behavior between rhodamine B hydrazide and rhodamine B acylhydrazone, and finds that rhodamine B acylhydrazone exhibits higher reversibility in electrooxidation. These results can be applied for developing new sensors with desired electrochemical properties.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Showket Ahmad Bhat, Mohd Ikram
Summary: In this study, 0-3 particulate multiferroic composites were synthesized and characterized. The composites exhibited excellent ferroelectric and ferromagnetic properties, as well as high piezoelectric strain and magnetoelectric coupling effects.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Carla Gomes, Mariana Costa, Susana M. M. Lopes, Bernardo Albuquerque Nogueira, Rui Fausto, Jose A. Paixao, Teresa M. V. D. e Melo, Luisa M. D. R. S. Martins, Marta Pineiro
Summary: The development of sustainable processes requires the integration of green chemistry principles. In this study, a solvent-free synthesis method was developed to prepare new copper catalysts, which efficiently catalyze cycloaddition reactions under solvent-free mechanochemical conditions. Through this process, the principles of atom economy, reduction of solvents and auxiliaries, design for energy efficiency, and reduction of derivatives and catalysis are combined.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Zhihua Liu, Jinzhe Li, Jianguo Zhou
Summary: This study demonstrates the enhancement of photoelectrochemical activity of BiFeO3 photoelectrodes through ion modification, which increases visible light absorption and active area, leading to improved PEC water splitting performance.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yisheng Zhang, Wensong Li, Jing Li, Fang Li, Wei Xue, Xinqiang Zhao, Yanji Wang
Summary: Pt/C and SO42-/ZrO2 were used as catalysts for the synthesis of p-aminophenol through the catalytic transfer hydrogenation of nitrobenzene in water with formic acid as the hydrogen source. The optimal Pt loading for PAP selectivity was found to be 1 wt%. The presence of different valence states of Pt affected both the nitrobenzene hydrogenation and formic acid decomposition. Among different solid acid catalysts tested, SO42-/ZrO2 exhibited the highest catalytic activity for p-aminophenol formation. Under the optimized reaction conditions, the conversion of nitrobenzene reached 80.0%, with a selectivity of 47.6% for p-aminophenol.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Pradyota Kumar Behera, Papita Behera, Amlan Swain, Santosh Kumar Sahu, Ajeena Sahoo, Laxmidhar Rout
Summary: We have developed a simple and direct method for the synthesis of diaryl ether using an oxygen bridged bimetallic CuMoO4 nanocatalyst under mild reaction conditions. The catalyst exhibited tolerance towards a wide range of substrates with various functional groups. It is efficient and recyclable. This methodology allows easy access to nitrofen derivatives (herbicides) from unactivated 2,4-dichlorophenol, which are important for agriculture and pharmaceuticals.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yihua Fu, Yan Zhang, Changwei Hu, Zhishan Su
Summary: The mechanism of the reaction between CO2 and styrene oxide for cyclic carbonate was revealed using density functional theory calculations. The noncatalytic reaction occurred via a concerted mechanism, while in the presence of guanidine and tetrabutylammonium iodide (TBAI) co-catalysts, the epoxide ring-opening by nucleophilic attack of an iodide anion was predicted to be the rate-determining step. Guanidine acted as the H-bond donor to activate styrene oxide, facilitating the reaction with a lower activation barrier.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Saikat Khamarui, Sirshendu Ghosh
Summary: Copper nanorods (Cu-NRs) exhibit significant plasmonic behavior and can act as efficient catalysts in redox processes and coupling. A benign decarboxylative approach, utilizing localized surface plasmon resonance (LSPR) assisted catalysis with Cu-NRs, has been developed for the production of alkane analogues from alkyl carboxylic acids under visible light. The catalyst shows a broad substrate scope and high functional group tolerance, without the need for an external oxidant or proton source. A plausible mechanism for this recyclable nano-catalyst has also been proposed based on control experiments.
NEW JOURNAL OF CHEMISTRY
(2024)