Article
Engineering, Environmental
Lijun Yan, Qing Wang, Wenqiang Qu, Tingting Yan, Hongrui Li, Penglu Wang, Dengsong Zhang
Summary: This study successfully regulated the structure of Pt/TiO2 catalyst through reduction-oxidation treatment, forming Pt/TiO2-C catalyst with a special interface, which can efficiently photocatalytically degrade toluene and exhibit stronger oxidation capacity and mineralization rate.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Qiao Wang, Lihua Li, Yu Hong, Qingyu Zhai, Yitian He
Summary: This study investigated the effects of six common indoor ornamental plants and three types of microalgae on the removal of air pollutants. The results showed that microalgae, especially C. vulgaris, were more effective in removing PM2.5, PM10, formaldehyde, and VOCs. Physical methods were weaker compared to plants and microalgae in terms of increasing relative humidity and oxygen content. Overall, microalgae, especially C. vulgaris, can efficiently purify indoor air pollutants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Shaoqing Sun, Kumar Vikrant, Swati Verma, Danil W. Boukhvalov, Ki-Hyun Kim
Summary: Developing high-performance air purifiers for removing carcinogenic volatile organic compounds, such as formaldehyde, from indoor air is of great practical interest. A portable air purifier system was designed using honeycomb ceramic filters loaded with diaminopropane-appended activated carbon. The system showed high removal efficiencies against formaldehyde, with the best performance achieved using 30% DAP/AC. However, the removal efficiency decreased with an increase in relative humidity. The clean air delivery rate of the system reached a high value, and isotherm analysis demonstrated the complex adsorption behavior of formaldehyde. The superior adsorption properties of DAP/AC can be attributed to both covalent and non-covalent interactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Engineering, Chemical
Xinzhi Wang, Deepak Kukkar, Sherif A. Younis, Kumar Vikrant, Younes Ahmadi, Danil Boukhvalov, Ki-Hyun Kim
Summary: Adsorbents with high surface area and diverse functional groups can effectively remove volatile organic compounds (VOCs) with different polarities. A metal-organic framework-199 (MOF-199)/powdered activated carbon (PAC) composite (MOF-199@PAC) was prepared and used to treat multiple VOC system containing both non-polar (benzene) and polar VOCs (methyl ethyl ketone). The composite showed efficient adsorption of polar and non-polar VOCs on its surface due to the presence of abundant pi-pi conjugated sites and polar groups, respectively.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Zeeshan Ajmal, Yassine Naciri, Munir Ahmad, Abdelghani Hsini, Asmae Bouziani, Mohmed Laabd, Waseem Raza, Adil Murtaza, Anuj Kumar, Sami Ullah, Abdullah G. Al-Sehemi, Ahmed A. Al-Ghamdi, Abdul Qadeer, Asif Hayat, Ridha Djellabi
Summary: Volatile and semi volatile organic compounds (VOCs and SVOCs) are serious environmental pollutants causing diseases worldwide. Photocatalytic technology using conductive polymers (CPs) such as polyaniline (PANI), polypyrrole (PPy), and polythiophene (PTh), along with inorganic oxide semiconductors, shows great potential in removing VOCs and SVOCs due to their multifunctional properties and high efficiency.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Xueyang Zhang, Wei Xiang, Xudong Miao, Feiyue Li, Guangdou Qi, Chengcheng Cao, Xuewen Ma, Shigeng Chen, Andrew R. Zimmerman, Bin Gao
Summary: This study produced a series of microwave biochars derived from wheat straw using a granulated activated carbon (GAC) catalyst, and tested their adsorption capacity for benzene series volatile organic compounds (VOCs). The results showed that microwave biochars with larger specific surface area, total pore volume, and micropore volume had higher adsorption capacities, and the adsorption process was influenced by both physical partitioning and chemisorption mechanisms.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Nicole Ninya, Laura Vallecillos, Rosa Maria Marce, Francesc Borrull
Summary: This study monitored the presence of volatile organic compounds (VOCs) and semi-volatile organic compounds (semi-VOCs) in indoor and outdoor environments in a school in Tarragona, Spain. The results showed a significant increase in solvent concentrations indoors due to the implementation of COVID-19 measures. The concentrations of organic compounds in indoor air were twenty times higher than those outdoors.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Materials Science, Textiles
Roberta Orlando, Alireza Afshari, Peter Fojan
Summary: By incorporating additives such as activated charcoal and titanium dioxide into electrospun fibre membranes, it is possible to remove volatile organic compounds efficiently. The distribution and morphology of the additives on the fibre surface affect the overall performance of the membranes.
JOURNAL OF INDUSTRIAL TEXTILES
(2023)
Article
Engineering, Environmental
Maksymilian Plata-Gryl, Malwina Momotko, S. l awomir Makowiec, Grzegorz Boczkaj
Summary: The study developed an efficient adsorbent (AsfNitro) using nitrated asphaltenes, exhibiting significantly improved adsorption capacity for benzene, pyridine, and 1-nitropropane. AsfNitro showed excellent efficiency and catalytic properties, surpassing common adsorbents in sorbate-adsorbent interactions.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Engineering, Environmental
Patrycja Makos-Chelstowska
Summary: Volatile organic compounds (VOCs) are highly problematic atmospheric pollutants emitted from anthropogenic sources. In this literature review, the use of absorption based on deep eutectic solvents (DES) for capturing individual VOCs is critically summarized. The physicochemical properties of used DES, their impact on absorption efficiency, methods for evaluating the effectiveness of new technologies, and the potential for DES regeneration are discussed. The review also provides critical comments on new gas purification methods and presents future perspectives.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Multidisciplinary Sciences
Kayo Tsumura, Hiroko Nakaoka, Norimichi Suzuki, Kohki Takaguchi, Yoshitake Nakayama, Keiichi Shimatani, Chisato Mori
Summary: The indoor environment, especially indoor air quality, is closely related to building-related symptoms. According to the guidelines of the Ministry of Health, Labor, and Welfare in Japan, a TVOC level below 400 mu g/m(3) can effectively reduce the risk of building-related symptoms. The study also found a significant relationship between odor intensity and the risk of building-related symptoms in spaces with TVOC levels below 400 mu g/m(3).
Article
Environmental Sciences
Yong -Lai Feng, Chun Yang, Xu-Liang Cao
Summary: In this study, IVOCs, VOCs, and SVOCs were characterized and measured in residential indoor air in Ottawa, Canada. IVOCs, including n-alkanes, branched-chain alkanes, unspecified complex mixtures, and oxygenated IVOCs, were found to significantly impact indoor air quality. Indoor IVOCs exhibited different behaviors compared to outdoor IVOCs, with a concentration range of 14.4 to 69.0 mu g/m(3) and accounting for approximately 20% of total organic compounds in indoor air. Branch-chain alkanes and UCM-IVOCs showed positive correlations with indoor temperature, while oxygenated IVOCs had a positive correlation with indoor relative humidity.
Article
Environmental Sciences
Chieh-An Cheng, Ting-Chun Ching, Shih-Wei Tsai, Kai-Jen Chuang, Hsiao-Chi Chuang, Ta-Yuan Chang
Summary: This study investigated the indoor concentrations of five volatile organic compounds (VOCs) in different locations on a medical university campus. The study found that dichloromethane was the most detected compound, and the Department of Medicine had the highest concentration of the total VOCs. The carcinogenic risks of dichloromethane and benzene were classified as possible for faculty members, and the noncarcinogenic risks were relatively low.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Environmental
Changkai Zhou, Ke Zhou, Huan Li, Xiang Xu, Baogen Liu, Hailong Li, Zheng Zeng, Weiwu Ma, Liqing Li
Summary: The study explores the application of pressure swing adsorption (PSA) for removing and recycling VOCs, with a focus on nonequilibrium time, effective length, and enrichment ratio. Various experiments were conducted to investigate the mechanism and industrial parameters of PSA, revealing that factors such as kinetic diameter, polarity, pore size, and boiling point influence the efficiency of VOCs removal. Methanol and acetone showed shorter effective lengths for complete removal compared to toluene, and the desorption performance was found to be related to desorption activation energy and the boiling point of the adsorbate. Ultimately, the study found that acetone had the highest recovery ratio among the three VOCs studied, presenting new opportunities for VOCs removal and recovery.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Maneeshin Y. Rajapakse, Theresa E. Pistochini, Eva Borras, Mitchell M. McCartney, Cristina E. Davis
Summary: Air cleaning technologies are crucial for reducing indoor concentrations and exposure to volatile organic compounds (VOCs). However, these technologies currently lack a standardized test to evaluate their effectiveness in removing VOCs. To address this issue, researchers developed a protocol to evaluate the performance of air cleaning devices in removing VOCs and tested it with two devices. The protocol involved injecting a mixture of VOCs and carbon dioxide into a test chamber, supplying outdoor air at a standard building ventilation rate, periodically measuring VOC concentrations using solid phase microextraction-gas chromatography-mass spectrometry, and comparing the decay rate of VOCs to carbon dioxide to assess the VOC removal performance. The results showed that the activated carbon air cleaner had a significantly higher clean air delivery rate compared to the hydroxyl radical generator (72.10 vs 6.32 m3/h).
Article
Biophysics
Vishal Chaudhary, Virat Khanna, Hafiz Taimoor Ahmed Awan, Kamaljit Singh, Mohammad Khalid, Yogendra Kumar Mishra, Shekhar Bhansali, Chen-Zhong Li, Ajeet Kaushik
Summary: This article introduces the fifth-generation portable intelligent and multifunctional biosensors embedded on a single chip, which are used for current public health emergencies. The article discusses in detail the advancements in MXene fabrication, physicochemical properties, and the application prospects of MXene-based biosensors in the medical field, as well as the sustainability and challenges associated with these technologies.
BIOSENSORS & BIOELECTRONICS
(2023)
Review
Neurosciences
Hayder M. M. Al-kuraishy, Ali I. Al-Gareeb, Ajeet Kaushik, Malgorzata Kujawska, Eman A. Ahmed, Gaber El-Saber Batiha
Summary: Parkinson's disease (PD) involves the progressive loss of dopaminergic neurons due to neurodegeneration, with the presence of Lewy bodies and inflammation in the brain. The neurotropism of SARS-CoV-2 and its induction of cytokine storm and neuroinflammation may contribute to PD development. However, overexpression of alpha-synuclein in PD patients may limit SARS-CoV-2 neuroinvasion and neuron degeneration, despite the virus accelerating alpha-synuclein aggregation. Further studies are needed to authenticate the potential link between COVID-19 and PD. Additionally, graphene-based nanoscale platforms may offer antiviral and anti-amyloid strategies against PD in the context of controlling the COVID-19 pandemic.
JOURNAL OF NEUROSCIENCE RESEARCH
(2023)
Editorial Material
Cell Biology
Malgorzata Kujawska, Ajeet Kaushik
NEURAL REGENERATION RESEARCH
(2023)
Article
Materials Science, Biomaterials
Dhiraj Kumar, Mahdieh Moghiseh, Kenny Chitcholtan, Isha Mutreja, Chiara Lowe, Ajeet Kaushik, Anthony Butler, Peter Sykes, Nigel Anderson, Aamir Raja
Summary: Emerging multifunctional nanoparticulate formulations, with nano-meter scale size and surface chemistry, can act as therapeutic delivery agents and diagnostic tools for non-invasive real-time monitoring using imaging technologies. This study evaluated the selective uptake of 18 nm and 80 nm sized gold nanoparticles (AuNPs) by ovarian cancer (OC) cells in vitro, and found that the 18 nm AuNPs were taken up 4 times more by SKOV3 cells compared to OVCAR5 cells. Luteinizing hormone-releasing hormone (LHRH) was conjugated to the surface of the AuNPs, making them potential contrast agents for novel spectral photon-counting CT imaging technology and a promising approach for targeted therapy of ovarian cancer.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Materials Science, Multidisciplinary
Mehar Singh, Abhinav Kapur, Urmila Chakraborty, Moondeep Chauhan, Gurpreet Kaur, Ajeet Kaushik, Ebrahim Mostafavi, Ganga Ram Chaudhary
Summary: This research reports the fabrication of dodecylamine-capped hafnium oxide nanomaterial for highly selective and sensitive detection of sulfide electrochemically. The fabricated sensor exhibits remarkable electrocatalytic oxidation of sulfide with fast electron transfer and nanomolar limit of detection. The method provides a green and economic approach for sulfide detection with high stability and charge density.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Review
Immunology
Vivek P. Chavda, Rajashri Bezbaruah, Disha Valu, Bindra Patel, Anup Kumar, Sanjay Prasad, Bibhuti Bhusan Kakoti, Ajeet Kaushik, Mariya Jesawadawala
Summary: The COVID-19 breakout had a devastating impact globally, resulting in millions of deaths and significant economic burdens. However, the determination of the SARS-CoV-2 genetic sequence and global efforts to develop potential vaccines have provided a glimmer of hope. Adenoviral vector-based vaccines have shown promise due to their higher immune response, better manufacturing processes, safety, efficacy, and manageable storage procedures. As of April 2022, the WHO has approved three adenoviral vector-based vaccines, among a total of 10 vaccines approved worldwide for COVID-19.
Article
Chemistry, Physical
Seyedeh Nooshin Banitaba, Dariush Semnani, Elahe Heydari-Soureshjani, Waqas Ul Arifeen, Tae Jo Ko, Behzad Rezaei, Ali A. Ensafi, Masoud Latifi, Ebrahim Mostafavi, Ajeet Kumar Kaushik
Summary: This study investigated the use of NiNP@RF@Fe3O4 structures as a filler in a polymer electrolyte for solid-state lithium-ion batteries. The introduction of these particles improved the conductivity, resulting in a rougher surface, increased ion pair dissociation, fewer crystalline domains, and better thermal stability.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Vishal Chaudhary, Sarvesh Rustagi, Ajeet Kaushik
Summary: The current public health emergencies have increased the demand for efficient biosensors for rapid diagnosis, disease monitoring, and prevention of associated diseases and deaths. The widespread use of biosensors raises the urgent need for biosensor-associated waste management. However, little attention is being paid to addressing this serious issue. This article highlights the state-of-the-art green biosensors based on bioderived nanostructures used to construct their sensing layer, electrodes, circuitry, and substrates. The utilization of bioderived-NS, bio waste, and green solvents supports sustainable, circular, and green economy without harming planetary health.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2023)
Review
Materials Science, Biomaterials
Isha Mutreja, Dhiraj Kumar, Ajeet Kaushik, Yogendra Kumar Mishra
Summary: In the field of dentistry research, there is a need for affordable and biologically acceptable functional antibacterial nanostructures for dental care. Nanolipids have emerged as potential materials for developing the next generation of dental treatment modalities. However, there is a knowledge gap in the development of high-quality nanolipid formulations and their introduction into dental research. This study aims to bridge this gap, exploring the use of programmable nanolipids for targeted dental issues, and discussing their future in clinical adaptability.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Review
Materials Science, Biomaterials
Vivek Kamat, Preyojon Dey, Dhananjay Bodas, Ajeet Kaushik, Alicia Boymelgreen, Shekhar Bhansali
Summary: Fabricating high-performance nanoparticles with unique properties requires maintaining identical characteristics throughout the processing and application process system. Microfluidic technology provides a unique approach to synthesize nanoparticles with size control, making it suitable for potential biomedical applications. This review discusses various strategies for synthesizing nanoparticles using active microfluidic reactors and explores the challenges and prospects in this field.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Nanoscience & Nanotechnology
Sarah Asgari, Bahareh Farasati Far, Gholamreza Charmi, Parisa Haji Maghsoudi, Shadi Keihankhadiv, Mohammad Seyedhamzeh, Ajeet Kumar Kaushik
Summary: This study demonstrates the development of a controlled-release drug delivery system for hydrocortisone using chitosan-grafted poly(N-vinylcaprolactam)-coated core-shell Fe3O4@SiO2 nanoformulations. The results show that the nanoparticles exhibit a higher release rate at lower pH values and temperature-responsive drug release. The nanoparticles effectively enhance the solubility, loading capacity, and targeted delivery of the drug, improving its therapeutic efficacy and bioavailability.
ACS APPLIED BIO MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Tuba Oz, Ajeet Kumar Kaushik, Malgorzata Kujawska
Summary: This review discusses the potential of tailored graphene-based nanomaterials (GBNs) for the treatment of Parkinson's disease (PD). GBNs show promise in targeting mechanisms contributing to PD neurodegeneration, such as alpha-synuclein aggregation, autophagy, inflammation, and oxidative stress. Furthermore, GBNs can be applied in nanomedicine, regenerative medicine, and biosensors, but so far, their use is limited to computational and early-stage experimental studies, and their biocompatibility and safety need further evaluation.
MATERIALS ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
Kamil Reza Khondakar, M. S. Anwar, Hirak Mazumdar, Ajeet Kaushik
Summary: The number of cancer cases is increasing globally, without difference between rich and undeveloped countries. Many nations still face serious obstacles in cancer screening and treatment. Therefore, there is an urgent requirement for quick screening tools and better cancer management to reduce the mortality rate.
MATERIALS ADVANCES
(2023)
Review
Chemistry, Inorganic & Nuclear
Nahid Tyagi, Gaurav Sharma, Deepak Kumar, Pashupati Pratap Neelratan, Deepanshu Sharma, M. Khanuja, Manoj K. Singh, Vishal Singh, Ajeet Kaushik, Sanjeev K. Sharma
Summary: Due to their controlled and manipulative properties, 2D MXenes-based sensors are highly efficient in detecting various types of organic or pharmaceutical contaminants. MXene's photocatalytic and adsorption capabilities make it a promising material for wastewater treatment.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Mehar Singh, Moondeep Chauhan, Yogendra K. Mishra, Scott L. Wallen, Gurpreet Kaur, Ajeet Kaushik, Ganga Ram Chaudhary
Summary: In this study, a novel nanomaterial based on CP-capped HfO2 was developed for efficient electrochemical sensing of the noxious pollutant 2-NPT. The CP@HfO2 nanomaterials showed electron-rich and surface-active sites, which improved the stability of the nanomaterials and enabled selective detection of 2-NPT. The CP@HfO2-NMs/Au sensor exhibited high sensitivity, low detection limit, and wide linear dynamic range, making it an effective analytical tool for selective 2-NPT detection in environmental water samples.
JOURNAL OF NANOSTRUCTURE IN CHEMISTRY
(2023)