Books by Arman Amani Babadi
ACS Symposium Series, 2020
Pretreating a carbon nanotube (CNT) support by refluxing it in 35 vol % nitric acid and then heat... more Pretreating a carbon nanotube (CNT) support by refluxing it in 35 vol % nitric acid and then heating it at temperatures of 600-900°C was found to result in the formation of defects on the CNTs. Increasing the temperature of the pretreatment of the CNTs from 600 to 900°C enhanced the fraction of cobalt oxide nanoparticles encapsulated in the channels of the CNTs from 31% to 70%. The performance of Co/CNTs in Fischer-Tropsch synthesis (FTS) was evaluated in a fixed-bed microreactor at a temperature of 240°C and a pressure of 2.0 MPa. The highest CO conversion obtained over Co/CNTs pretreated at 900°C was 59%, which dropped by~3% after 130 h of time on stream. In contrast, the maximum CO conversion obtained using Co/CNTs pretreated at 600°C catalysts was 28%, which decreased rapidly by about 54% after 130 h of time on stream. These findings show that the combined acid and thermal pretreatment of the CNT support at 900°C improved the stability and activity of the Co/CNTs catalyst in FTS.
articles by Arman Amani Babadi
Nanomedicine Research Journal, 2016
Among the synthetic polymers, poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) microbial poly... more Among the synthetic polymers, poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) microbial polyester is one of the biocompatible and biodegradable copolymers in the nanomedicine scope. PHBV has key points and suitable properties to support cellular adhesion, proliferation and differentiation of nanofibers. Nanofibers are noticeably employed in order to enhance the performance of biomaterials, and could be effectively considered in this scope.
Electrospinning is one of the well-known and practical methods that extremely employed in the construction of nanofibrous scaffolds for biomedical application and recently PHBV has exploited in nerve graft and regenerative medicine. PHBV composites nanofibrous scaffolds are able to be applied as promising materials in many fields, such as; wound healing and dressing, tissue engineering, targeted drug delivery systems, functional carries, biosensors or nano-biosensors and so on. In this mini-review, we attempt to provide a more detailed overview of the recent advances of PHBV electrospun nanofibers application in neural graft and regeneration.
IET Intelligent Transport Systems, 2022
Connected and Autonomous Vehicles (CAVs) can receive various information from surrounding vehicle... more Connected and Autonomous Vehicles (CAVs) can receive various information from surrounding vehicles through Vehicle-to-Everything (V2X) communication technologies and adjust their car-following behaviour accordingly. Although several studies have evaluated the impact of CAVs on traffic flow stability in a small segment of networks, most approaches are focused on their specific applications considering the trajectory information, and there is a lack of studies analyzing the impact of CAVs on a large-scale network. This paper proposes a novel viscous continuum traffic model considering the anticipation of space headway, the throttle angle, and brake torque information during cooperative car-following. The methods employed to develop the new car-following model and its counterpart continuum traffic model have been described. The linear and non-linear stability analyses of the newly developed model have been conducted to obtain the critical stability factors in small perturbations. Numerical simulations have been carried out to investigate the effect of the anticipation, the throttle angle, and brake torque information on traffic stability, fuel consumption, and exhaust emissions. The numerical results reveal that the anticipation of space headway and the transmission of the throttle angle and brake torque information during cooperative car-following manoeuvres can improve the traffic flow stability and reduce fuel consumption and emissions.
Springer Nature, 2022
The current COVID-19 pandemic outbreak poses a serious threat to public health, demonstrating the... more The current COVID-19 pandemic outbreak poses a serious threat to public health, demonstrating the critical need for the development of effective and reproducible detection tests. Since the RT-qPCR primers are highly specific and can only be designed based on the known sequence, mutation sensitivity is its limitation. Moreover, the mutations in the severe acute respiratory syndrome β-coronavirus (SARS-CoV-2) genome led to new highly transmissible variants such as Delta and Omicron variants. In the case of mutation, RT-qPCR primers cannot recognize and attach to the target sequence. This research presents an accurate dual-platform DNA biosensor based on the colorimetric assay of gold nanoparticles and the surface-enhanced Raman scattering (SERS) technique. It simultaneously targets four different regions of the viral genome for detection of SARS-CoV-2 and its new variants prior to any sequencing. Hence, in the case of mutation in one of the target sequences, the other three probes could detect the SARS-CoV-2 genome. The method is based on visible biosensor color shift and a locally enhanced electromagnetic field and significantly amplified SERS signal due to the proximity of Sulfo-Cyanine 3 (Cy3) and AuNPs intensity peak at 1468 cm-1. The dual-platform DNA/GO/AuNP biosensor exhibits high sensitivity toward the viral genome with a LOD of 0.16 ng/µL. This is a safe point-of-care, naked-eye, equipment-free, and rapid (10 min) detection biosensor for diagnosing COVID-19 cases at home using a nasopharyngeal sample.
Frontiers in Energy Research, Mar 31, 2022
Microalgae are known as the most efficient biological sequesters of carbon dioxide (CO<sub>2</sub... more Microalgae are known as the most efficient biological sequesters of carbon dioxide (CO<sub>2</sub>). Recently, they have been exploited to enhance air quality by decreasing CO<sub>2</sub> levels and increasing oxygen (O<sub>2</sub>) concentrations. However, in public places, there are sources of toxic chemicals such as tobacco smoke that may affect the growth of microalgae. For the first time, the current study explores the influence of tobacco smoke on the cell growth, biodiesel characteristics, and biochemical composition of two strains of model microalgae. Chlamydomonas strains were treated with tobacco smoke in a sealed box for 7 days, wherein every 1 h, one cigarette was burnt. Upon exposure of microalgae to tobacco smoke, the specific growth rate (μ<sub>max</sub>) was unaffected in CHL-2220 and remained around 0.500 days<sup>−1</sup>, whereas in CHL-2221, it decreased notably from 0.445 days<sup>−1</sup> to 0.376 days<sup>−1</sup>. In the CHL-2221, the lipid level considerably reduced from 15.55 %DW to 13.37 %DW upon exposure to tobacco smoke. In both strains, palmitic acid was the main constituent of saturated fatty acids (SFAs) that displayed significant (p < 0.05) decreases in response to tobacco smoke exposure. In CHL-2221, oleic acid (C18:1) presented a substantial increase from 7.64 to 17.09% in response to tobacco smoke. Moreover, exposure of CHL-2220 to tobacco smoke decreased the cetane number (CN) from 30.34 to 25.28, while in CHL-2221, it increased from 26.07 to 29.73 upon treatment. Both strains demonstrated low-quality biodiesel to be used as feedstock. Conversely, their fatty acid profile revealed their promising use as nutrient food.
Scientists propose developing stable, efficient, cost-effective, and colorful ruthenium-free dyes... more Scientists propose developing stable, efficient, cost-effective, and colorful ruthenium-free dyes to improve the performance of dye-sensitised solar cells (DSSCs), facilitating their commercialization and overcoming the limitation of ruthenium-based dyes. Therefore, graphene quantum dots (GQDs) as a photosensitiser, having unique and fascinating properties, have attracted the interest of researchers for them to be used in the fabrication of green DSSC based on titanium oxide nanoparticles (TiO 2-NPs) as a photoanode. GQDs bear both the individual and attractive properties of the graphene nature as well as the size-resulted quantum effects. In addition to the unique electrical and optical properties of GQDs, their bandgap is lesser than 2.0 eV making them interesting material in the field of DSSCs. In this article, we fabricate a TiO 2-NPs based DSSCs using GQDs green photosensitiser and investigate the impact of immersion time and photoanode layer thickness on the performance and power conversion efficiency (PCE) of fabricated DSSC. The optimized immersion time of TiO 2 in GQDs green photosensitiser is analyzed to be 21 h and 40 μm thickness of the photoanode layer. The I-V result test indicates open circuit output potential difference (V oc) of 0.74 V, and short circuit current (I SC) of 6.62 mA with PCE of 2.76% and a fill factor (FF) of 56.
Molecules , 2021
Honey is prone to be adulterated through mixing with sugars, cheap and low-quality honey, and oth... more Honey is prone to be adulterated through mixing with sugars, cheap and low-quality honey, and other adulterants. Consumption of adulterated honey may cause several health issues such as weight gain, diabetes, and liver and kidney dysfunction. Therefore, studying the impact of consumption of adulterated honey on consumers is critical since there is a lack of study in this field. Hence, the aims of this paper were: (1) to determine the lethal concentration (LC50) of adulterated honey using zebrafish embryo, (2) to elucidate toxicology of selected adulterated honey based on lethal dose (LD50) using adult zebrafish, (3) to determine the effects of adulterated honey on histological changes of zebrafish, and (4) to screen the metabolites profile of adulterated honey by using zebrafish blood serum. The LC50 of Heterotrigona itama honey (acacia honey) and its sugar adulterants (light corn sugar, cane sugar, inverted sugar, and palm sugar in the proportion of 1–3% (w/w) from the total volume) was determined by the toxicological assessment of honey samples on zebrafish embryos (different exposure concentrations in 24, 48, 72, and 96 h postfertilization (hpf)). Pure H. itama honey represents the LC50 of 34.40 ± 1.84 (mg/mL) at 96 hpf, while the inverted sugar represents the lowest LC50 (5.03 ± 0.92 mg/mL) among sugar adulterants. The highest concentration (3%) of sugar adulterants were used to study the toxicology of adulterated honey using adult zebrafish in terms of acute, prolong-acute, and sub-acute tests. The results of the LD50 from the sub-acute toxicity test of pure H. itama honey was 2.33 ± 0.24 (mg/mL). The histological studies of internal organs showed a lesion in the liver, kidney, and spleen of adulterated treated-honey groups compared to the control group. Furthermore, the LC-MS/MS results revealed three endogenous metabolites in both the pure and adulterated honey treated groups, as follows: (1) S-Cysteinosuccinic acid, (2) 2,3-Diphosphoglyceric acid, and (3) Cysteinyl-Tyrosine. The results of this study demonstrated that adulterated honey caused mortality, which contributes to higher toxicity, and also suggested that the zebrafish toxicity test could be a standard method for assessing the potential toxicity of other hazardous food additives. The information gained from this research will permit an evaluation of the potential risk associated with the consumption of adulterated compared to pure honey.
Surgical gloves provide a protective blockade for patients and members of the surgical team. Glov... more Surgical gloves provide a protective blockade for patients and members of the surgical team. Glove integrity is critical in an era of blood-borne pathogens. Therefore, the need for improved means for prevention and also gloving and appropriate hand hygiene in a hospital setting is ostensible. This perspective highlights the progress on antimicrobial surgical gloves in deducting the microbial passage after a glove puncture in a model of wound contamination. Moreover, traditional methods to avoid microbes in the hospital and various antimicrobial agents, such as metal ions and antiseptic dyes, are reviewed.
Biofuel cells are bio-electrochemical devices, which are suitable for the environmentally friendl... more Biofuel cells are bio-electrochemical devices, which are suitable for the environmentally friendly generation of energy. Enzymatic biofuel cell (EBFC) operates at ambient temperature and pH. Biofuel cells utilize vegetable and animal fluids (e.g. glucose) as a biofuel to produce energy. Fundamental part of each Glucose biofuel cell (GBFC) is two bioelectrodes which their surface utilizes as an enzyme immobilized site. Glucose oxidase (GOx) or glucose dehydrogenase (GDH) were immobilized on bioanode and oxidize glucose while oxygen reduced in biocathode using immobilized laccase or bilirubin oxidase in order to generate sufficient power. Glucose biofuel cells are capable to generate sufficient power for implanted devices. The key step of manufacturing a bioelectrode is the effective enzyme immobilization on the electrode surface. Due to the thin diameter of carbon nanomaterials, which make them accessible to the enzyme active sites, they are applicable materials to establish electronic communication with redox enzymes. Carbon nanomaterials regenerate the biocatalysts either by direct electron transfer or redox mediators which serve as intermediated for the electron transfer. Nano-carbon functionalization is perfectly compatible with other chemical or biological approaches to enhance the enzyme functions in implantable biofuel cells. Efficient immobilization of enzyme using the functionalized nano-carbon materials is the key point that greatly increases the possibilities of success. Current review highlights the progress on implantable biofuel cell, with focus on the nano-carbon functionalization for enzyme immobilization enhancement in glucose/O2 biofuel cells.
Electrochemical biosensors are responsible for quantification of analytes for medical diagnostics... more Electrochemical biosensors are responsible for quantification of analytes for medical diagnostics applications. They are considered as a promising means to investigate the content of a biological sample owing to the direct exchange of a biological process to an electronic output signal. Novel characteristics of nanocarbon materials attracted much attention for fabrication of numerous electrochemical biosensors with developed analytical capacities. This paper aims to provide perceptions of 3D graphene-based electrochemical biosensors and to demonstrate its application in glucose detection. The developed glucose biosensing platform exhibits excellent catalytic activity towards glucose detection over a wide linear range of up to 6 mM with sensitivity of 1.63 μA mM−1 cm−2 and the stability of electrode is around 76.9% after one month. The facile and easy electrochemical approach used for the preparation of 3DG–GOD modified GCE may open up new horizons in the production of cost-effective biosensors.
International Journal of Hydrogen Energy, 2019
Enzymatic biofuel cells are a subclass of biofuel cells, which employ enzymes to generate energy ... more Enzymatic biofuel cells are a subclass of biofuel cells, which employ enzymes to generate energy from renewable sources. In this study, 3-dimensional graphene (3DG)/glucose oxidase (GOx) bio-nanocomposite was fabricated in order to improve enzyme immobilisation and enzyme lifetime with an enhanced electron transfer rate. These enhancements are due to the unique physical properties of 3DG, e.g. high porosity, large surface area, and excellent electrical conductivity. A power density of 164 μW cm−2 at 0.4 V was achieved from this enzymatic biofuel cell (EBFC) with an acceptable performance compared to that of the other glucose biofuel cells (GBFCs). The 3DG enhances the enzyme lifetime, decreases enzyme leaking and, due to its good conductivity, facilitates the electron harvest and transfer from the enzyme active site to the electrode. This suggests that 3DG could be used as effective support for enzyme immobilisation on the surface of the electrode in EBFC applications and related areas such as biosensors, bioreactors and implantable biofuel cells.
Symmetry, 2020
The effects of process conditions on Fischer–Tropsch Synthesis (FTS) product distributions ... more The effects of process conditions on Fischer–Tropsch Synthesis (FTS) product distributions were studied using a fixed-bed microreactor and a Co–Mn/CNT catalyst. Cobalt and Manganese, supported on Carbon Nanotubes (CNT) catalyst were prepared by a Strong Electrostatic Adsorption (SEA) method. CNT supports were initially acid and thermally treated in order to functionalize support to uptake more Co clusters. Catalyst samples were characterized by Transmitted Electron Microscope (TEM), particle size analyzer, and Thermal Gravimetric Analysis (TGA). TEM images showed catalyst metal particle intake on CNT support with different Co and Mn loading percentage. Performance test of Co–Mn/CNT in Fischer–Tropsch synthesis (FTS) was carried out in a fixed-bed micro-reactor at different pressures (from 1 atm to 25 atm), H2/CO ratio (0.5–2.5), and reduction temperature and duration. The reactor was connected to the online Gas Chromatograph (GC) for product analysis. It was found that the reaction conditions have the dominant effect on product selectivity. Cobalt catalyst supported on acid and thermal pre-treated CNT at optimum reaction condition resulted in CO conversion of 58.7% and C5+ selectivity of 59.1%.
Foods, 2020
Honey is characterized as a natural and raw foodstuff that can be consumed not only as a sweetene... more Honey is characterized as a natural and raw foodstuff that can be consumed not only as a sweetener but also as medicine due to its therapeutic impact on human health. It is prone to adulterants caused by humans that manipulate the quality of honey. Although honey consumption has remarkably increased in the last few years all around the world, the safety of honey is not assessed and monitored regularly. Since the number of consumers of honey adulteration have increased in recent years, their trust and interest in this valuable product has decreased. Honey adulterants are any substances that are added to the pure honey. In this regard, this paper provides a comprehensive and critical review of the different types of adulteration, common sugar adulterants and detection methods, and draws a clear perspective toward the impact of honey adulteration on human health. Adulteration increases the consumer's blood sugar, which can cause diabetes, abdominal weight gain, and obesity, raise the level of blood lipids and can cause high blood pressure. The most common organ affected by honey adulterants is the liver followed by the kidney, heart, and brain, as shown in several in vivo research designs.
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Micromachines, 2021
The environmental crisis, due to the rapid growth of the world population and globalisation, is a... more The environmental crisis, due to the rapid growth of the world population and globalisation, is a serious concern of this century. Nanoscience and nanotechnology play an important role in addressing a wide range of environmental issues with innovative and successful solutions. Identification and control of emerging chemical contaminants have received substantial interest in recent years. As a result, there is a need for reliable and rapid analytical tools capable of performing sample analysis with high sensitivity, broad selectivity, desired stability, and minimal sample handling for the detection, degradation, and removal of hazardous contaminants. In this review, various gold–carbon nanocomposites-based sensors/biosensors that have been developed thus far are explored. The electrochemical platforms, synthesis, diverse applications, and effective monitoring of environmental pollutants are investigated comparatively.
In attempt to develop low-cost biomass derived carbon materials with improved properties, herein ... more In attempt to develop low-cost biomass derived carbon materials with improved properties, herein we present a facile method for the fabrication of nitrogen doped carbon through carbonization of beet root, ZnCl2 and our developed cyano/nitrile-free ionic liquid. The resultant N-doped carbon possesses high specific surface area (1297 m2 g−1), abundant micropores and mesopores, an ideal pore size distribution and a partial graphite structure, and high nitrogen heteroatom doping. The nanosheet was then applied as a support for the immobilization of Pd nanoparticles to furnish an efficient and recyclable catalyst for the reduction of organic dyes, Rhodamine B and Methyl orange in the presence of NaBH4. A comparative study confirmed that introduction of ionic liquid could remarkably affect the properties of the catalyst in terms of Pd loading, nature of the formed carbon, textural properties and nitrogen content. The effects of the catalyst loading and the reaction temperature were elucidated. Moreover, the kinetic studies revealed that the activation energy, enthalpy, and entropy for the reduction of Methyl orange were as 30.3 kJ mol−1, 27.7 kJ mol−1, and -180.1 J mol−1 K−1, respectively. For Rhodamine B, these values were as follow: 44.8 kJ mol−1, 41.7 kJ mol−1, and -136 Jmol−1K−1, respectively.
Papers by Arman Amani Babadi
Tech Science Press, 2023
Microalgae biomass is an ideal precursor to prepare renewable carbon materials, which has broad a... more Microalgae biomass is an ideal precursor to prepare renewable carbon materials, which has broad application. The bioaccumulation efficiency (lipids, proteins, carbohydrates) and biomass productivity of microalgae are influenced by spectroscopy during the culture process. In this study, a bilayer plate-type photobioreactor was designed to cultivate Chlorella protothecoides with spectral selectivity by nanofluids. Compared to culture without spectral selectivity, the spectral selectivity of Ag/CoSO 4 nanofluids increased microalgae biomass by 5.76%, and the spectral selectivity of CoSO 4 solution increased by 17.14%. In addition, the spectral selectivity of Ag/CoSO 4 nanofluids was more conducive to the accumulation of nutrients (29.46% lipids, 50.66% proteins, and 17.86% carbohydrates) in microalgae. Further cultured chlorella was utilized to prepare bioelectrode materials, it was found that algal based biochar had a good pore structure (micro specific surface area: 1627.5314 m 2 /g, average pore size: 0.21294 nm). As the current density was 1 A/g, the specific capacitance reached 230 F/g, appearing good electrochemical performance.
Carbon materials prepared by biomass pyrolysis have been studied for conversion of lignin into ph... more Carbon materials prepared by biomass pyrolysis have been studied for conversion of lignin into phenols. In this study, the control mechanism of free radicals on phenolic products selectivity was studied using guaiacol as a model chemical. The results showed that gaseous radicals or carbon-centered radicals of carbon materials could promote phenols formation through different mechanisms. In gas-phase system, the selectivity of phenols was mainly controlled by methyl radicals which led to a theoretical selectivity of phenols lower than 50%. In the heterogeneous system, methyl radicals and phenolic radicals were easily and rapidly adsorbed on the carbon edge sites. The o-hydroxyphenoxy radical was the key intermediate and was firstly absorbed on the carbon center radical sites where phenols produced at the same position after undergoing desorption and hydrogenation. In conclusion, the present study concluded that conversion of lignin to phenols can proceed rapidly as long as there are carbon-centered radicals distributed at zigzag edge on the carbon surface.
Journal of The Electrochemical Society, 2022
The occurrence of sudden viral outbreaks, such as Covid-19, H1N1 flu, and H5N1 flu has globally c... more The occurrence of sudden viral outbreaks, such as Covid-19, H1N1 flu, and H5N1 flu has globally challenged the existing medical facilities and raised critical concerns about saving affected lives, especially during pandemics. The detection of viral infections at an early stage using biosensors has been proven to be an effective, economical, and rapid way to combat their outbreak and severity. State-of-the-art biosensors suffer bottlenecks of large detection time, and sophisticated requirements, thereby increasing the cost and complexities of biosensing strategies. Recently, the utilization of two-dimensional MXenes as a sensing-material for biosensors has been touted as game-changing technology in diagnosing viral diseases. The unique surface chemistries with abundant functional terminals, excellent conductivity, tunable electric and optical attributes, and high specific surface area have made MXenes an ideal material for architecting virus-diagnosing biosensors. There are numerous ...
IET Intelligent Transport Systems
Connected and Autonomous Vehicles (CAVs) can receive various information from surrounding vehicle... more Connected and Autonomous Vehicles (CAVs) can receive various information from surrounding vehicles through Vehicle-to-Everything (V2X) communication technologies and adjust their car-following behaviour accordingly. Although several studies have evaluated the impact of CAVs on traffic flow stability in a small segment of networks, most approaches are focused on their specific applications considering the trajectory information, and there is a lack of studies analyzing the impact of CAVs on a large-scale network. This paper proposes a novel viscous continuum traffic model considering the anticipation of space headway, the throttle angle, and brake torque information during cooperative car-following. The methods employed to develop the new car-following model and its counterpart continuum traffic model have been described. The linear and non-linear stability analyses of the newly developed model have been conducted to obtain the critical stability factors in small perturbations. Numerical simulations have been carried out to investigate the effect of the anticipation, the throttle angle, and brake torque information on traffic stability, fuel consumption, and exhaust emissions. The numerical results reveal that the anticipation of space headway and the transmission of the throttle angle and brake torque information during cooperative car-following manoeuvres can improve the traffic flow stability and reduce fuel consumption and emissions.
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Books by Arman Amani Babadi
articles by Arman Amani Babadi
Electrospinning is one of the well-known and practical methods that extremely employed in the construction of nanofibrous scaffolds for biomedical application and recently PHBV has exploited in nerve graft and regenerative medicine. PHBV composites nanofibrous scaffolds are able to be applied as promising materials in many fields, such as; wound healing and dressing, tissue engineering, targeted drug delivery systems, functional carries, biosensors or nano-biosensors and so on. In this mini-review, we attempt to provide a more detailed overview of the recent advances of PHBV electrospun nanofibers application in neural graft and regeneration.
Papers by Arman Amani Babadi
Electrospinning is one of the well-known and practical methods that extremely employed in the construction of nanofibrous scaffolds for biomedical application and recently PHBV has exploited in nerve graft and regenerative medicine. PHBV composites nanofibrous scaffolds are able to be applied as promising materials in many fields, such as; wound healing and dressing, tissue engineering, targeted drug delivery systems, functional carries, biosensors or nano-biosensors and so on. In this mini-review, we attempt to provide a more detailed overview of the recent advances of PHBV electrospun nanofibers application in neural graft and regeneration.