Article
Chemistry, Inorganic & Nuclear
Narendra Kumar Singh, Shivani Sharma, Abarna Krishnakumar, Ravinder Kumar Choudhary, Anupa A. Kumbhar, Raymond J. Butcher, Yuba Raj Pokharel, Paras Nath Yadav
Summary: A series of new N(4) thiomorpholinyl isatin/5-haloisatin thiosemicarbazones and their copper(II) complexes were synthesized and characterized. The compounds and complexes demonstrated significant antiproliferative activity against cancer cells, with compound 4 showing the highest cell growth inhibition. Chelation of the ligands to the copper ion enhanced the inhibition of tumor cells.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Analytical
Marwa El Badry Mohamed, Eman Yossri Frag, Mohamed Helal El Brawy
Summary: This paper presents a new highly selective and sensitive Cu(II) ions modified carbon paste electrode (MCPE) based on 2-(3phenoxy phenyl) propanoic acid (Fenoprofen (FP)) as a Cu(II) selective modifier. The MCPE has a Nernstian slope of 29.9 ? 0.15 mV decade-1 in the linear range of 1.0 ? 10-6 to 1.0 ? 10-2 mol L-1 and shows high selectivity toward Cu(II) ions.
MICROCHEMICAL JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Lijie Xu, Xiaoping Jiang, Yuhong Liu, Kang Liang, Meng Gao, Biao Kong
Summary: Cu2+ ions play a pivotal role in both ecosystems and human health. Cu2+ sensors based on FMSMs have garnered considerable attention in the realms of chemical sensing, biosensing, and bioimaging due to their distinctive structure and easily functionalized surfaces.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Omer Isildak, Oguz Ozbek, Ilyas Yildiz, Aysegul Senocak
Summary: A novel ion-selective electrode based on 5-bromosalicylaldehyde thiosemicarbazone was developed for the selective determination of Cr3+ ions. The electrode exhibited good selectivity towards Cr3+ ions among metal ions with different charges, and had a low detection limit and fast response time. It can be used as an alternative to other analytical methods in the analysis of Cr3+ ions.
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
(2023)
Article
Chemistry, Analytical
Partha Sarathi Sheet, Suji Park, Pavel Sengupta, Dipankar Koley
Summary: We have developed a multifunctional dendritic molecular probe that can selectively detect Cu2+ ions via potentiometric and fluorometric techniques with low detection limits. The solid-state Cu(II) microsensor made from this probe has a broad linear range, fast response time, and a near Nernstian slope.
Article
Chemistry, Multidisciplinary
Ghodsi Mohammadi Ziarani, Maryam Akhgar, Fatemeh Mohajer, Alireza Badiei, Rafael Luque
Summary: SBA-Pr-Is-TAP, a hybrid nanomaterial synthesized by functionalizing SBA-15, can precisely bind Fe3+ and Cr2O72- ions in aqueous media, serving as a nanoporous chemosensor for these ions. The chemosensor showed excellent linear relation with ion concentrations, with detection limits of 2.43 x 10^(-6) M for Fe3+ and 3.96 x 10^(-7) M for Cr2O72- ions.
Article
Materials Science, Ceramics
A. Eisinas, T. Dambrauskas
Summary: The objective of this study was to synthesize calcium silicate hydrates in dense samples and apply them for copper ion adsorption and oxidation catalyst for volatile organic compounds. Different mineralogical compositions, density, and compressive strength were observed in samples synthesized for different durations. Calcium silicate hydrates synthesized in dense samples could effectively remove copper ions from liquid medium, while the efficiency depended on the properties of the medium and synthesis duration. The synthetic samples combined with copper ions exhibited catalytic activity for methanol oxidation.
CERAMICS INTERNATIONAL
(2023)
Article
Energy & Fuels
Fujun Lan, Yu Shu, Huiling Zhang, Dexiang Zhang, Qingxin Guan, Wei Li
Summary: This study presents a confined Cu cluster catalyst by uniformly encapsulating ultrafine Cu nanoclusters in aminofunctionalized nanosized mesoporous silica spheres (NMSSs-NH2), which exhibits excellent hydrogenation performance for biomass-derived levulinic acid (LA) and demonstrates the potential of inexpensive Cu cluster-based catalysts for the production of high-value chemicals from renewable biomass.
Article
Engineering, Environmental
Yanyang Liu, Xiaofang Yang, Jing Ai, Qigao Shang, Dongsheng Wang, Guiying Liao
Summary: Transforming biomass solid waste and spent adsorbents into high-value products for wastewater remediation is a new concept of green chemistry and environmental protection. In this study, a multistage utilization strategy of solid waste was proposed to prepare adsorbents and photocatalysts. A biomass-based aerogel with excellent adsorption performance was fabricated from waste reed, and then converted into a functional photocatalyst for tetracycline degradation. The study highlights the feasibility of high-value conversion of hazardous waste adsorbents.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Song Li, Chunhui Zhou, Jinsong Hu, Aijun Duan, Chunming Xu, Xilong Wang
Summary: Ultrafine bimetallic PdIr nanoparticles supported on amine-functionalized dendritic mesoporous silica nanospheres (PdIr/DMSNs-NH2) were successfully synthesized by simple surface functionalization and co-reduction method. The optimized Pd4Ir1/DMSNs-NH2 catalyst displayed excellent catalytic performance with 100% H2 selectivity in formic acid dehydrogenation, achieving a high initial turnover frequency (TOF) of 1333 h-1 at 298 K. The catalyst also showed high stability and a low activation energy (Ea) of 39.7 KJ/mol.
JOURNAL OF CATALYSIS
(2023)
Article
Biochemistry & Molecular Biology
Andrii Fedorchuk, Alain Walcarius, Magdalena Laskowska, Neus Vila, Pawel Kowalczyk, Krzysztof Cpalka, Lukasz Laskowski
Summary: A chemical procedure was developed to prepare highly ordered and vertically aligned mesoporous silica films containing selected contents of silver ions. The functionalization level can be finely tuned by controlling the co-condensation process.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Physical
Ailian Chen, Shirui Wang, Wenjie Cai, Zhaoyu Mu, Yang Chen
Summary: This study synthesized dendritic mesoporous silica nanospheres with tunable structures and investigated their properties for chemical mechanical polishing (CMP) applications. The resulting D-mSiO(2) nanospheres showed superior performance in CMP, making them potential novel abrasives for advanced polishing applications.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Biochemistry & Molecular Biology
Divya Ekta, Divya Utreja
Summary: A novel sulfonamide-based nano-composite (SAN) was synthesized for the selective and sensitive detection of Fe3+ ions in aqueous samples. Morphological characterization and sensor analysis were carried out to assess the performance of SAN. The results showed that SAN is a reliable and sensitive chemosensor with a low detection limit for Fe3+ ions in fully aqueous media.
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Enas Aljuhani, Ahmed Hameed, Zehbah A. Al-Ahmed, Albandary Almahri, Turki M. Habeebullah, Ahmed Shahat, Nashwa M. El-Metwaly
Summary: A novel green procedure based on direct immobilization of aurintricarboxylic acid reagent into mesoporous silica nanospheres was proposed to recognize and determine Al(III) ions in water samples. The developed method showed excellent performance in terms of detection and reusability, making it suitable for various water types.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Eun-Bi Kim, M. Imran, Ahmad Umar, M. Shaheer Akhtar, Sadia Ameen
Summary: In this study, a functional nanocomposite based on HTD oligomer and GO was synthesized and used to fabricate a highly sensitive and selective chemical sensor for simultaneous detection of heavy metal ions such as Cr2+ and Cu2+. The HTD@GO/GCE sensor probe exhibited outstanding physiochemical, structural, and surface characteristics, and demonstrated strong selectivity towards Cr2+ and Cu2+ ions. Importantly, the sensor showed good dynamic linear ranges and detection limits for trace Cr2+ and Cu2+ ions, with low relative standard deviations as suggested by the repeatability test. The reliability of the functionalized nanocomposite sensor was also confirmed by analyzing actual water samples.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Bhavya Arora, Shivani Sharma, Sriparna Dutta, Aditi Sharma, Sneha Yadav, Pooja Rana, R. K. Sharma
Summary: This article presents a novel catalyst for the synthesis of pharmaceutical compounds. The catalyst is based on copper complex and is prepared by immobilizing it on the surface of magnetic halloysite nanotubes. Microscopic and spectroscopic techniques were used to characterize the structure and properties of the catalyst. The results show that the catalyst exhibits excellent catalytic activity under mild conditions and can be easily recovered and reused with the aid of external magnetic force.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Pooja Rana, Ranjana Dixit, Shivani Sharma, Sriparna Dutta, Sneha Yadav, Bhavya Arora, Bhawna Kaushik, Pooja Rana, Rakesh K. Sharma
Summary: Atomically thin two-dimensional boron nitride nanosheets have been used as exceptional support matrixes in nanocatalysis research. In this study, a magnetic boron nitride nanosheet-based cobalt catalytic system was fabricated, showing remarkable catalytic activity in the synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones. The hybrid material exhibited excellent characteristics such as ambient reaction conditions, high product yield, thermal and mechanical stability, as well as facile magnetic retrievability and efficient recyclability. This methodology has a wide range of applications and potential for designing next-generation 2D catalytic materials.
ACS APPLIED NANO MATERIALS
(2022)
Review
Oncology
Sanjay Kumar, Bulbul Sagar, Abhay Gaur, Shefali Shukla, Ekta Pandey, Shikha Gulati
Summary: Cancer is a notorious disease that threatens millions of lives annually. Natural products that disrupt microtubule assembly have shown promise as anti-cancer agents, but their high toxicity limits their use. Noscapine (NOS), an anti-cough medication, has emerged as an effective anti-tubulin candidate with lower toxicity. This review summarizes recent advancements in the development of therapeutic candidates targeting various cancers and highlights the potential of NOS analogs as anti-microbial and antiviral agents.
ANTI-CANCER AGENTS IN MEDICINAL CHEMISTRY
(2023)
Review
Engineering, Environmental
Gunjan Arora, Tanishka Sharma, Kirti Kashyap Taijas, Parul Pant, Chetna Gupta, R. K. Sharma
Summary: Rivers are heavily impacted by human activities, leading to deterioration in water quality, but the COVID-19 lockdown has brought temporary improvements to certain Indian rivers. Strict restrictions on human activities during the lockdown period resulted in reduced pollution and improved water parameters in some sites. However, once the lockdown is lifted, the pollution levels are likely to return to their previous state. The government's existing water pollution control schemes are analyzed and recommendations for improvement are provided in this review article.
ENVIRONMENTAL ENGINEERING RESEARCH
(2023)
Article
Chemistry, Applied
Bhawna Kaushik, Pooja Rana, Deepti Rawat, Kanika Solanki, Shallu Sachdeva, Dhanaji R. Naikwadi, Ankush Biradar, Rakesh K. Sharma
Summary: An efficient magnetic ZnO/BiVO4 heterostructure was designed and employed for environmental photocatalysis. The fabricated nanocomposite exhibited effective light absorption, prolonged charge separation, and high photocatalytic efficacy under visible light irradiation. The constructed heterostructure displayed significantly higher activity compared to bare BiVO4 and undoped magnetic ZnO nanoparticles. Mechanistic pathway during the photodegradation process was elucidated through radical trapping studies, ESR analysis, and GC-MS analysis. The recyclability of the catalyst makes it a promising candidate for large-scale applications.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Priya Yadav, Radhika Gupta, Gunjan Arora, Anju Srivastava, Rakesh K. Sharma
Summary: This study presents the fabrication and characterization of a highly efficient and magnetically retrievable nickel-based silica-coated nanocatalyst for the synthesis of biologically significant propargylamines. The nanocatalyst offers greener reaction conditions, broad substrate scope, short reaction time, and reusability for up to seven runs without significant loss in catalytic activity.
Article
Chemistry, Multidisciplinary
Bhavya Arora, Shivani Sharma, Sriparna Dutta, Aditi Sharma, Sneha Yadav, Pooja Rana, Shilpa Mehta, R. K. Sharma
Summary: Magnetic halloysite nanotubes have generated excitement in water research and technology due to their unique structure and surface chemistry. A nickel-based nanocatalyst was designed by anchoring a bidentate chelating ligand onto the surface of aminosilane functionalized magnetic halloysite nanotubes. The synthesized nanocatalyst showed outstanding efficiency in degrading pollutants under neutral conditions and could be easily retrieved using a magnet.
Review
Chemistry, Multidisciplinary
Kanika Solanki, Shivani Sharma, Sneha Yadav, Bhawna Kaushik, Pooja Rana, Ranjana Dixit, R. K. Sharma
Summary: Hierarchical micro/nanostructures, as an interesting class of crystalline materials, have been widely applied in diverse fields, including waste-water treatment. Due to their unique properties such as large surface-to-volume ratio, facile mass transportation, and high stability against aggregation, three-dimensional (3D) hierarchical metal oxides are considered versatile functional materials. This review focuses on the synthesis methods and surface modification strategies of hierarchical structures, aiming to enhance the removal efficiency of different noxious substances. The applications and mechanistic pathways of these materials for the eradication of organic and inorganic contaminants are comprehensively discussed.
Review
Nanoscience & Nanotechnology
Shefali Shukla, Bulbul Sagar, Anantpreet Kaur Sood, Abhay Gaur, Sanjay Batra, Shikha Gulati
Summary: Cucurbit[n]urils (CB-[n]) are a type of relatively young supramolecular systems that function as containers for various guests, and they have been extensively studied for their biomedical applications. These applications include drug formulation and delivery, controlled drug release, photodynamic therapy, and bioanalytical sensing. CB-[n]s possess unique recognition properties and have been successfully utilized to enhance the efficacy of chemotherapeutic agents both in vitro and in vivo, as well as to decrease the toxicity of existing drugs. This review summarizes recent studies on the mechanisms and host-guest complexation of biologically important molecules with CB-[n], and highlights their implementation in anticancer therapeutics.
ACS APPLIED BIO MATERIALS
(2023)
Review
Nanoscience & Nanotechnology
Naveen Goyal, Anoushka Amar, Shikha Gulati, Rajender S. Varma
Summary: In recent decades, the disposal of industrial pollutants has led to the deterioration of freshwater quality, despite the high water coverage on Earth. Adsorption process using cyclodextrin-based nanosponges has emerged as an efficient and cost-effective method for wastewater treatment, offering advantages over conventional methods. These nanosponges have shown significant potential in removing various pollutants due to their unique structure and hydrophilic/hydrophobic properties. Their adsorption capacity can also be enhanced through hybridization with other adsorbents or functionalization with magnetic nanoparticles. This review discusses the limitations of conventional methods and emphasizes the synthesis strategies and applications of β-cyclodextrin-based nanosponges for pollutant removal from wastewater.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Kanika Solanki, Shivani Sharma, Pooja Rana, Bhawna Kaushik, Sneha Yadav, Ranjana Dixit, Ankush V. Birdar, Ashu Gupta, R. K. Sharma
Summary: In order to remove Pb2+ ions from wastewater rapidly and selectively, we developed an economically viable three-dimensional ferrite-based hierarchical structure with high surface area, good thermal stability, and flower-shaped morphology. The synthesized material exhibited excellent adsorption performance for Pb2+ ions. Experimental exploration also demonstrated the selectivity and efficiency of the material in real water samples. The rating: 8 points.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Pooja Rana, Kapil Mohan Saini, Bhawna Kaushik, Kanika Solanki, Ranjana Dixit, Rakesh K. Sharma
Summary: In this work, a versatile and noble metal free copper-based heterogeneous photocatalyst was successfully fabricated, which represents a green shift away from precious group metals commonly used as photocatalysts. The synthesized copper photocatalyst showed high activity and was utilized for a cross dehydrogenative coupling reaction between tertiary amines and carbon nucleophiles. The copper-based photocatalyst exhibited exceptional chemical stability, reusability, and high loading of copper, making it a potential candidate for environmentally friendly and economically feasible applications.
Article
Chemistry, Inorganic & Nuclear
Aditi Sharma, Shivani Sharma, Sriparna Dutta, Sneha Yadav, Ranjana Dixit, Bhavya Arora, Shilpa Mehta, Anju Srivastava, Rakesh K. K. Sharma
Summary: In this study, a magnetically retrievable graphene oxide (MGO) based copper nanocatalytic system immobilized with dehydroacetic acid (DHA) was designed and synthesized. The synthesized nanocomposite (Cu@DHA@APTES@MGO) showed high efficiency in the cyclization of 2-aminophenols and β-diketones, with wide substrate scope, excellent functional group tolerance, and high conversion percentage. The 2D architecture of graphene oxide played a crucial role in the exceptional catalytic activity, providing space for trapping reactants and facilitating the reaction to afford benzoxazole products.
DALTON TRANSACTIONS
(2023)
Review
Materials Science, Biomaterials
Shikha Gulati, Akangkha Choudhury, Gauravya Mohan, Riya Katiyar, M. P. Mohammed Abaan Kurikkal, Sanjay Kumar, Rajender S. Varma
Summary: Metal-organic frameworks (MOFs) are multifunctional organometallic compounds that combine metal ions with various organic linkers. Due to their exceptional qualities, such as wide surface area, high porosity, biocompatibility, and non-toxicity, MOFs have gained widespread attention in medicine. They have been recognized as promising candidates for biosensing, molecular imaging, drug delivery, and enhanced cancer therapies. This review highlights the key attributes of MOFs in cancer research, emphasizing their structural and synthetic aspects, diagnostic and therapeutic features, as well as their performance and significance in modern therapeutic methods and synergistic theranostic strategies including biocompatibility.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Review
Materials Science, Multidisciplinary
Rakesh Kumar Sharma, Rakeshwar Bandichhor, Vishwesh Mishra, Shivani Sharma, Sneha Yadav, Shilpa Mehta, Bhavya Arora, Pooja Rana, Sriparna Dutta, Kanika Solanki
Summary: The development of nanocatalysis has revolutionized chemistry by promoting the design of new catalytic production processes in organic synthesis with utmost waste minimization. Functional nano-architectures based on metal oxides have shown exceptional potential to enhance industrially significant oxidation processes. This review aims to summarize the applicability of diverse metal oxide nanocatalysts in manufacturing fine chemicals and provide guidance for future research in this area.
MATERIALS ADVANCES
(2023)
Article
Chemistry, Analytical
Gang Qu, Yuxin Zhao, Qiaoli Zhang, Jina Wu, Xiaosen Li, Yang Yang, Shilei Liu
Summary: In this study, magnetic mesoporous materials combined with real-time in situ mass spectrometry were used for the high-throughput detection of hydrolyzed products of organophosphorus nerve agents. The method showed good linearity, low limits of detection and quantification, and high extraction recoveries. The magnetic preparation method used was quick, cost-effective, rugged, and safe. The results demonstrated the potential of this method for rapid and efficient determination of the target analytes in environmental samples.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Anna Hildebrand, Mariam Merchant, Danny O'Hare
Summary: Substandard and falsified artemisinin derivatives in antimalarials have caused significant deaths and economic losses. This study evaluates the feasibility of voltammetric methods for identifying and quantifying artemether. The findings suggest that electrochemical analysis shows promise as a method for artemether identification and quantification.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Marx Osorio Araujo Pereira, Alvaro Ferreira Junior, Edson Silvio Batista Rodrigues, Helena Mulser, Giovanna Nascimento de Mello e Silva, Wallans Torres Pio dos Santos, Eric de Souza Gil
Summary: Brazilian spotted fever (BSF) is a serious and rapidly evolving disease. A new impedimetric immunosensor was developed for rapid diagnosis by measuring specific antibodies in plasma. The sensor demonstrated selectivity and accuracy, and has potential for important applications in diagnostic testing.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Kathrin Schilling, Ronald A. Glabonjat, Olgica Balac, Marta Galvez-Fernandez, Arce Domingo-Relloso, Vesna Slavkovich, Jeff Goldsmith, Miranda R. Jones, Tiffany R. Sanchez, Ana Navas-Acien
Summary: Analysis of trace elements in urine is an important tool for assessing exposures, diagnosing nutritional status, and guiding public health and healthcare intervention. This study provides a sensitive method for analyzing 18 elements in urine samples, using only 100 μL. The results show good accuracy and sensitivity of the method.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Mengya Li, Shijie Liu, Shiliang Guo, Dong Liang, Miaoyun Li, Yaodi Zhu, Lijun Zhao, Jong-Hoon Lee, Gaiming Zhao, Yangyang Ma, Yanxia Liu
Summary: In this study, a magnetic flow device was developed to purify spores in a culture medium system. The device used magnetic nanoparticles to absorb vegetative cells, separating them from the spores. The achieved purity of the collected spores was over 95%. The study also demonstrated a rapid quantitative detection method using Raman spectroscopy.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Wanqiong Liu, Zixuan Wu, Jianwei Peng, Zebin Xu, Yong Liang
Summary: Metal-organic frameworks (MOFs) are effective carriers for molecular imprinting, but their poor dispersibility in aqueous solution is a significant drawback. In this study, we have applied amphiphilic block copolymers and molecularly imprinted technology on MOFs to improve the hydrophilicity of molecularly imprinted fluorescent materials.
ANALYTICAL METHODS
(2024)
