Recent experimental and observational research has suggested that childhood allergic asthma and other conditions may be the result of prenatal exposure to environmental contaminants, such as ...di-(2-ethylhexyl) phthalate (DEHP). In a previous epidemiological study, we found that ancestral exposure (F0 generation) to endocrine disruptors or the common plasticizer DEHP promoted allergic airway inflammation via transgenerational transmission in mice from generation F1 to F4. In the current study, we employed a MethylationEPIC Beadchip microarray to examine global DNA methylation in the human placenta as a function of maternal exposure to DEHP during pregnancy. Interestingly, global DNA hypomethylation was observed in placental DNA following exposure to DEHP at high concentrations. Bioinformatic analysis confirmed that DNA methylation affected genes related to neurological disorders, such as autism and dementia. These results suggest that maternal exposure to DEHP may predispose offspring to neurological diseases. Given the small sample size in this study, the potential role of DNA methylation as a biomarker to assess the risk of these diseases deserves further investigation.
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•Cadmium Substituted CoCr2O4prepared by solution combustion synthesis method.•The Cd-doped Co1-xCd xCr2O4 was tested to detect humidity in the relative humidity range of 22 to ...97%.•Response and recovery times of 55 and 18 s, respectively, and a 99% sensing response.
In this work we successfully synthesized cadmium substituted cobalt chromate nanoparticles with the chemical formula Co1-xCdxCr2O4 (x = 0.1, 0.2, 0.3, 0.4, and 0.5) using the solution combustion method. We utilized various characterization techniques including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) to examine the structural and morphological changes of the prepared samples. The XRD analysis revealed the formation of a single-phase cubic structure without any impurity peaks, indicating the high purity of the synthesized nanoparticles. Furthermore, we evaluated the humidity sensing capabilities of the prepared nanoparticles across a relative humidity range of 22 % to 97 %. The sample with the highest cadmium doping level (Cd = 0.5) exhibited the most significant sensing response, with response and recovery times of 55 and 18 s, respectively, and a sensing response of 97 %. These results indicate that the synthesized materials are well-suited for humidity sensor applications. our findings demonstrate the successful synthesis of cadmium-doped cobalt chromate nanoparticles with excellent structural characteristics and humidity sensing properties, highlighting their potential for use in humidity sensor technologies.
For the first time, we have prepared cadmium-doped cobalt chromate with chemical formula Co
1-x
Cd
x
Cr
2
O
4
(where
x
= 0, 0.03, 0.06, 0.09, 0.12, and 0.15) nanoparticles by solution combustion ...method. To examine the structural and morphological changes of the prepared samples were subjected to characterise X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy (EDX). The XRD data demonstrate the formation of a single-phase cubic structure without an impurity peak emerging. Further, the strain and particle size components were calculated using the Williamson–Hall method and results are in good agreements with XRD results. The Cd-doped Co
1-x
Cd
x
Cr
2
O
4
was tested to detect humidity in the relative humidity range of 11 to 99%. The sample with the highest sensing response, Cd = 0.15, had response and recovery times of 35.6 and 6.5s, respectively, and a 99% sensing response. Therefore, based on our findings, the synthesised materials are appropriate for use in humidity sensor applications.
It is crucial to have an effective and efficient humidity sensing material for humidity sensor applications. In this study, Lu
3+
-doped Zinc ferrites were prepared by chemical synthesis method using ...urea and glucose as fuels for the first time. The prepared powder samples were subjected to several analyses, including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), and Energy-dispersive X-ray spectroscopy (EDX), to examine the structural and morphological changes in ZnFe
2 − x
Lu
x
o
4
(where
x
= 0, 0.1, 0.3, 0.5, and 0.7). The XRD results show that a single phase was formed without any impurity peak, as confirmed by XRD. The FTIR spectra exhibited two prominent bands at 532 cm
−1
and 360 cm
−1
, which are characteristic features of spinel ferrite. SEM micrographs revealed that the nanoparticles were almost spherical in shape, porous in nature, and fairly uniform in size. Further analysis of the nanoparticle with EDAX confirmed the elemental composition. The humidity sensing behavior of Lu-doped ZnFe
2
O
4
was tested in the relative humidity range of 11 to 97%. Among the samples, Lu = 0.05 exhibited the highest sensing response of 97% with response and recovery times of 35.6 and 6.5 s, respectively. Hence, our results suggest that the synthesized samples are useful for humidity sensor applications.
As a result of the global fuel crisis of the early 1970 s,coupled with concerns for the environment,the use of biofuel has been on the increase in many regions throughout the world.At present,a total ...of approximately 30 billion(30×109) liters of biofuel are utilized worldwide annually,although most countries rely hugely on the first generation biofuel.The limitations of the first and second generation biofuel gave rise to current interest in algae as a promising alternative to these conventional biofuel sources.Algal biomass could provide a lion’s share of the global transport fuel requirements in future.The present review highlights some important developments in,and potentials of algaculture as a major biomass resource of the future.However,the major constraint to commercial-scale algae farming for energy production is the cost factor,which must be addressed adequately before its potentials can be harnessed.
OBJECTIVE： To document the indigenous knowledge and evaluate the antioxidant activity of medicinal herbs used for treatment of various diseases.METHODS： The ethnomedicinal data were collected through ...semi-structured interviews of local informants along with collection of herbarium specimens. The antioxidant activity was evaluated by using 1-diphenyl-2-picryl-hydrazyl radical scavenging assay.RESULTS： A total of 12 important medicinal herbs were evaluated for ethnomedicinal uses and antioxidant activity. Medicinal plant diversity showed that Solanaceae was the dominating family（3 spp.）,followed by Asteraceae and Lamiaceae（both 2spp.）. Leaves（31%） were most frequently used in preparation of traditional medicines, and the most recommended mode of preparation was powder（28%）. The antioxidant results revealed that thehighest activity was found in Atropa acuminata and Crocus sativus.CONCLUSION： The results of this study proved that A. accuminata and C. sativus can be the excellent sources of antioxidant compounds. A sustainable use and conservation of the valuable natural resource greatly promote the development of functional food additives and cosmetics.
OBJECTIVE: To document the indigenous knowledge and evaluate the antioxidant activity of medicinal herbs used for treatment of various diseases.METHODS: The ethnomedicinal data were collected through ...semi-structured interviews of local informants along with collection of herbarium specimens. The antioxidant activity was evaluated by using 1-diphenyl-2-picryl-hydrazyl radical scavenging assay.RESULTS: A total of 12 important medicinal herbs were evaluated for ethnomedicinal uses and antioxidant activity. Medicinal plant diversity showed that Solanaceae was the dominating family(3 spp.),followed by Asteraceae and Lamiaceae(both 2spp.). Leaves(31%) were most frequently used in preparation of traditional medicines, and the most recommended mode of preparation was powder(28%). The antioxidant results revealed that thehighest activity was found in Atropa acuminata and Crocus sativus.CONCLUSION: The results of this study proved that A. accuminata and C. sativus can be the excellent sources of antioxidant compounds. A sustainable use and conservation of the valuable natural resource greatly promote the development of functional food additives and cosmetics.
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