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1.
Molecules ; 28(12)2023 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-37375155

RESUMO

The unavailability of non-poisonous and hygienic food substances is the most challenging issue of the modern era. The uncontrolled usage of toxic colorant moieties in cosmetics and food manufacturing units leads to major threats to human life. The selection of environmentally benign approaches for the removal of these toxic dyes has gained the utmost attention from researchers in recent decades. This review article's main aim is the focus on the application of green-synthesized nanoparticles (NPs) for the photocatalytic degradation of toxic food dyes. The use of synthetic dyes in the food industry is a growing concern due to their harmful effects on human health and the environment. In recent years, photocatalytic degradation has emerged as an effective and eco-friendly method for the removal of these dyes from wastewater. This review discusses the various types of green-synthesized NPs that have been used for photocatalytic degradation (without the production of any secondary pollutant), including metal and metal oxide NPs. It also highlights the synthesis methods, characterization techniques, and photocatalytic efficiency of these NPs. Furthermore, the review explores the mechanisms involved in the photocatalytic degradation of toxic food dyes using green-synthesized NPs. Different factors that responsible for the photodegradation, are also highlighted. Advantages and disadvantages, as well as economic cost, are also discussed briefly. This review will be advantageous for the readers because it covers all aspects of dyes photodegradation. The future feature and limitations are also part of this review article. Overall, this review provides valuable insights into the potential of green-synthesized NPs as a promising alternative for the removal of toxic food dyes from wastewater.


Assuntos
Nanopartículas Metálicas , Nanoestruturas , Humanos , Águas Residuárias , Corantes , Fotólise , Óxidos
2.
J Pak Med Assoc ; 73(1): 165-168, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36842031

RESUMO

Spermatic cord Leiomyosarcoma is an extremely rare intrascrotal tumour. Owing to its rarity, no definitive management guidelines have been formulated as yet. The majority of published literature comprises of case reports or case series and show varying outcomes depending upon multiple patient- and disease-related factors. Almost all cases are older adults with majority in the sixth or seventh decades of life. It is commonly labelled as an indolent curable tumour if treated Spermatic cord Leiomyosarcoma is an extremely rare intrascrotal tumour. Owing to its rarity, no definitive management guidelines have been formulated as yet. The majority of published literature comprises of case reports or case series and show varying outcomes depending upon multiple patient- and disease-related factors. Almost all cases are older adults with majority in the sixth or seventh decades of life. It is commonly labelled as an indolent curable tumour if treated early by radical orchiectomy. The role of lymphadenectomy, adjuvant radiotherapy or chemotherapy is unclear. This case report concerns a young 38-year-old man who suffered from a painless firm left hemiscrotal mass for the past two years. Ultrasonography showed an intrascrotal paratesticular mass. Metastatic workup was negative. Left radical orchiectomy was performed and histopathology of the surgical specimen revealed leiomyosarcoma of the spermatic cord. The patient is on post-surgery follow-up and disease-free for six months. A literature review is also presented.


Assuntos
Neoplasias dos Genitais Masculinos , Leiomiossarcoma , Cordão Espermático , Humanos , Masculino , Idoso , Adulto , Neoplasias dos Genitais Masculinos/diagnóstico por imagem , Neoplasias dos Genitais Masculinos/cirurgia , Cordão Espermático/cirurgia , Cordão Espermático/patologia , Leiomiossarcoma/diagnóstico , Leiomiossarcoma/cirurgia , Radioterapia Adjuvante , Orquiectomia
3.
Int J Phytoremediation ; 20(2): 168-174, 2018 Jan 28.
Artigo em Inglês | MEDLINE | ID: mdl-28644041

RESUMO

Synthetic chelators play an important role in boosting the microbial biomass carbon (MBC), dissolved organic carbon (DOC), and heavy metal solubility in a contaminated soil toward a sustainability of environment for agricultural crops. Castor plant was grown under different levels of Cd contaminated soil (-Cd and +Cd) following adding three chelating agents, ethylenediaminetetraacetic acid (H4EDTA), nitriloacetic acid (H3 NTA), and NH4 citrate (ammonium citrate) to the soil at rates of 10, 15, and 25 mmol in 5 kg of soil per pot. The highest bioavailable Cd concentrations in soil and castor plant were obtained from NH4 citrate and H4EDTA treatments in the contaminated soil. Fourier transform infrared (FTIR) analysis showed that NH4 citrate was the most effective chelator in Cd-contaminated soil. MBC and DOC contents were significantly increased and reached at 81.98-80.37 and 1.96-1.90 mg kg-1 respectively, in the (H3 NTA) and NH4 citrate treatments in Cd-contaminated soil. Further research is needed to investigate the use of chelators in the phytoextraction of Cd-contaminated soils under field conditions and whether it may be beneficial in accelerating the phytoextraction of Cd through hyperaccumulating plants.


Assuntos
Biodegradação Ambiental , Cádmio , Microbiologia do Solo , Poluentes do Solo , Biomassa , Cádmio/metabolismo , Carbono , Quelantes , Ácido Cítrico , Ácido Edético , Metais Pesados , Plantas , Ricinus , Poluentes do Solo/metabolismo
4.
Int J Phytoremediation ; 20(12): 1221-1228, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-31274024

RESUMO

Cadmium (Cd) contamination in red soil has been considered as a severe threat due to its toxic effects on plants and food security. This study aims to evaluate the comparative efficiency of rice husk-derived biochar (RHB) and steel slag (SS) metal stabilizer on decreasing Cd mobility and bioavailability to Chinese cabbage grown on acidic contaminated red soil. Several extraction techniques: a sequential extraction procedure, the European Community Bureau of Reference, toxicity characteristics leaching procedure, ammonium nitrate, and simple bioaccessibility extraction test were used to measure Cd mobility after amelioration of the investigated soil. The results indicated that application of stabilizer significantly increased soil chemical properties including soil pH, cation exchange capacity, nutrients, and organic matter. The soluble portion of Cd in soil was significantly decreased by 17.6-31.2% and 7.8-11.7% for RHB and SS at 1.5% and 3% application rate, respectively. Moreover, Cd bioaccessibility was significantly declined by 37.08% with RHB and 11.3% with SS at 3% rate. Inlcorporation of RHB at 3% can effectively immobilize Cd and thereby, reduce its phytoavailability to cabbage in Cd-contaminated soil to mitigate food security risks.

5.
J Environ Manage ; 228: 429-440, 2018 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-30243078

RESUMO

Application of biochar to soil can play a significant role in the alteration of nutrients dynamics, soil contaminants as well as microbial functions. Therefore, strategic biochar application to soil may provide agronomic, environmental and economic benefits. Key environmental outcomes may include reduced availability of toxic metals and organic pollutants, reduced soil N losses and longer-term storage of carbon in soil. The use of biochar can certainly address key soil agronomic constraints to crop production including Al toxicity, low soil pH and may improve nutrient use efficiency. Biochar application has also demerits to soil properties and attention should be paid when using a specific biochar for a specific soil property improvement. This review provides a concise assessment and addresses impacts of biochar on soil properties.


Assuntos
Carvão Vegetal/química , Solo/química , Agricultura , Animais , Carbono/química , Poluição Ambiental , Poluentes do Solo/química
6.
Physiol Mol Biol Plants ; 24(6): 1093-1101, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30425426

RESUMO

Occurrence of salt stress with the soil borne fungus Fusarium oxysporum f. sp. cepa (FOC) are potential threat to the crop yield. This investigation reports effect of the concurrent stresses (salinity and FOC) on morpho-physiological and yield attributes in onion. In vitro growth tests revealed proliferation of FOC biomass at different levels of salinity (2-8 dS m-1). A greenhouse pot experiment with the proposed levels of salinity (2.5, 3.5 and 4.5 dS m-1) in combination with FOC inoculation showed more drastic effect of combined stress on disease severity, plant growth and bulb as compared to the individual stress. In general, osmotic potential, total chlorophyll content, membrane stability index and total protein content of the leaf were decreased, while total phenolics were increased due to the given stress/s. Total sugar content decreased due to effect of the  individual stress of FOC, while it increased under the individual stress of salinity and in combination with FOC. FOC infection did not change activity of polyphenol oxidase (PPO), while it improved peroxidase (POX) and phenylalanine ammonia lyase (PAL) and decreased catalase (CAT) activity. Activities of POX and PPO increased, however PAL and CAT declined under individual as well as simultaneous stress of salinity and FOC. The research work concluded that FOC will be a more severe disease threat for onion cultivation in saline soils.

7.
Pak J Pharm Sci ; 31(6): 2411-2418, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30473512

RESUMO

The aim of the study was to investigate the dissolution behavior of commercially available brands of metronidazole and to provide basic tool to evaluate the comparative effectiveness and interchangeability of generic brands under biowaiver conditions. The dissolution test for six brands of metronidazole 400mg tablets was performed and physical controls were analyzed. Basket Rack methods at 100rpm were used to estimate release pattern of drug. Pharmaceutical parameters of tablets were analyzed. In order to evaluate dissolution profiles, multiple point dissolution were performed and calculated 85.96±0.41 to 90.56±0.93 % within 15 minutes in pH 1.2,85.50±1.40 to 88.99±0.80% in pH 4.5 and 85.37±1.94 to 92.79±0.89% in pH 6.8 dissolution medium respectively. Five different kinetics have been studied to predict and evaluate the acceptability level of drug release. The results show that Hixson-Crowell, first-order and Weibull demonstrated the drug release with R2> 0.95 that predicted the tablets were pharmaceutically equivalent. One-way ANOVA at p >0.05 level and similarity factors (f2) were used to estimate the discrepancy and intimacy among the brands. It is a need of time to constantly monitor the marketed generic drugs products and their release profiles to confirm their in vitro bioequivalence which can help to reduce the time, cost and unnecessary exposure of healthy subjects to medicines.


Assuntos
Anti-Infecciosos/química , Medicamentos Genéricos/farmacocinética , Metronidazol/química , Modelos Químicos , Administração Oral , Anti-Infecciosos/administração & dosagem , Anti-Infecciosos/farmacocinética , Composição de Medicamentos , Liberação Controlada de Fármacos , Medicamentos Genéricos/administração & dosagem , Medicamentos Genéricos/química , Concentração de Íons de Hidrogênio , Cinética , Metronidazol/administração & dosagem , Metronidazol/farmacocinética , Solubilidade , Comprimidos , Equivalência Terapêutica
8.
World J Surg Oncol ; 15(1): 89, 2017 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-28427406

RESUMO

BACKGROUND: Hodgkin lymphoma is one of the most prevalent lymphoproliferative disorders in Pakistan; however, no risk factors for this disease have yet to be established in our population. Epstein-Barr virus (EBV) is a well-known risk factor for Hodgkin lymphoma in endemic regions of the world; however, frequency of its association in our population has not been widely studied. Latent membrane protein 1 (LMP1) expression by immunohistochemistry (IHC) is a surrogate marker of EBV in Hodgkin lymphoma. Therefore, we aimed to evaluate the frequency of expression of LMP1 in cases of Hodgkin lymphoma at our institute and its correlation with other clinical and histologic parameters. METHODS: The study included 66 cases of Hodgkin lymphoma diagnosed at Liaquat National Hospital over a duration of 2 years from January 2014 to December 2015. The slides and blocks of all cases were retrieved, and representative blocks were selected for LMP1 by IHC. LMP1 expression of >10% of cells was considered as positive expression and correlated with histologic subtypes and clinical parameters like age, gender, and site of involvement. RESULTS: The mean age of patients was 35.11 (+20.22). LMP1 expression was found in 68.1% (45/66) of cases of Hodgkin lymphoma. Mean age of the patients with LMP1 expression was 32.04 (+21.02). LMP1 expression was found in 40% cases of lymphocyte-rich, 66.7% of lymphocyte-depleted, 73.9% of mixed cellularity, 66.7% of nodular sclerosis, and 73.7% of classic Hodgkin lymphoma, NOS. No significant correlation of LMP1 expression with any clinical or histological parameter could be established in our studied patient population. CONCLUSIONS: A high frequency of expression of LMP1 is seen in cases of Hodgkin lymphoma at our setup comparable to endemic regions of the world; therefore, preventive and treatment protocols should be designed accordingly.


Assuntos
Biomarcadores Tumorais/metabolismo , Infecções por Vírus Epstein-Barr/complicações , Herpesvirus Humano 4 , Doença de Hodgkin/diagnóstico , Proteínas da Matriz Viral/metabolismo , Adulto , Infecções por Vírus Epstein-Barr/metabolismo , Infecções por Vírus Epstein-Barr/virologia , Feminino , Seguimentos , Doença de Hodgkin/metabolismo , Doença de Hodgkin/virologia , Humanos , Masculino , Estadiamento de Neoplasias , Paquistão , Prognóstico , Taxa de Sobrevida
9.
Pak J Med Sci ; 33(3): 699-702, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28811798

RESUMO

BACKGROUND & OBJECTIVE: The inguinal hernia accounts for 50 percent in old age males. A Lichtenstein type of operation has now become the method of choice in most developed countries but in the developing world traditional simple suture repair is still in common practice in resource limited hospitals due to the scarcity and expensive nature of the commercial prosthetic mesh. Our objective was to compare the rates of complications in Lichtenstein repair to tension free Darn repair. METHODS: Ninety two male patients from 20-60 years of age reported for direct or indirect inguinal hernia with open Mesh/Lichtenstein or darn repair in emergency or electively from January 2014 to December 2015 were enrolled in this prospective randomized control trial (RCT). The primary end point was to compare the surgical site infection, length of hospital stay and hernia recurrence with different techniques. RESULTS: The hospital stay was higher in patients who had Lichtenstein repair, Superficial surgical site infections in cohort A (6.5%) and cohort B (4.36%)were noted. Complications of recurrence in Group-A were (1.5%) as compared to Group-B which had a recurrence of 6.52%. CONCLUSION: Lichtenstein is more promising in comparison to Darn repair in terms of recurrence in inguinal hernia.

10.
Int J Phytoremediation ; 18(7): 664-70, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26588431

RESUMO

Phytoextraction has been identified as one of the most propitious methods of phytoremediation. This pot experiment were treated with varying amounts of (ethylenediamine triacetic acid) EDTA 3-15, (Nitriloacetic acid) NTA 3-10, (Ammonium citrate) NH4 citrate 10 - 25 mmol and one mg kg(-1)Cd, filled with 5 kg soil. The addition of chelators significantly increased Cd concentration in soil and plant. The results showed that maximum Cd uptake was noted under root, shoot and leaf of castor plant tissue (2.26, 1.54, and 0.72 mg kg(-1)) under EDTA 15, NTA 10, and NH4 citrate 25 mmol treatments respectively, and in soil 1.08, 1.06 and 0.52 mg kg(-1) pot(-1) under NH4 citrate 25, NTA 10 and EDTA 15 mmol treatments respectively, as against to control (p < 0.05). Additions of chelators reduction biomass under the EDTA 15 mmol as compared to other treatments, However, Bioconcentration factor (BCF), translocation factor (TF) and remediation factor (RF) were significantly increased under EDTA 15 and NH4 citrate 25 mmol as against control. Our results demonstrated that castor plant proved satisfactory for phytoextraction on contaminated soil, and EDTA 15 and NH4 citrate 25 mmol had the affirmative effect on the Cd uptake in the artificial Cd-contaminated soil.


Assuntos
Cádmio/metabolismo , Quelantes/metabolismo , Recuperação e Remediação Ambiental/métodos , Ricinus/metabolismo , Poluentes do Solo/metabolismo , Biodegradação Ambiental , Ácido Cítrico/metabolismo , Ácido Edético/metabolismo , Ácido Nitrilotriacético/metabolismo , Compostos de Amônio Quaternário/metabolismo
11.
RSC Adv ; 14(4): 2504-2517, 2024 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-38223691

RESUMO

Herein, we report a sensitive electrochemical platform prepared by modifying the electrode surface with copper-doped zinc oxide nanoparticles; these nanoparticles were prepared via a green synthetic approach using the extract of Cassia fistula leaves and multiwalled carbon nanotubes (MWCNTs). For the best response of the electrode modifier, a number of experimental conditions were optimized to obtain the most intense signal of the target analyte Coomassie brilliant blue using a rapid analysis technique square wave voltammetry. The designed sensor displayed remarkable sensitivity for Coomassie brilliant blue with a detection limit of 0.1 nM under the optimized conditions. Moreover, the repeatability, specificity and reproducibility of the designed sensor demonstrated its potential for practical applications. The sensing platform was also used for monitoring the degradation kinetics of the Coomassie brilliant blue dye. Catalytic degradation of the dye was performed using the synergistic effect of Cu-ZnO NPs together with Fenton reagent. The dye degraded by 96% in 60 minutes under neutral conditions, which is one of the main achievements of this work that has never been reported. The photocatalytic breakdown of Coomassie brilliant blue was also monitored using UV-visible spectroscopy. The degradation kinetics results of both techniques agreed well. The adsorption of Coomassie brilliant blue using ZnO NPs was monitored spectrophotometrically. The adsorption data were fitted in a pseudo-second order kinetic model by following the Langmuir isotherm at lower concentration and Freundlich isotherm at higher concentration.

12.
Brachytherapy ; 23(1): 10-17, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37813708

RESUMO

OBJECTIVE: To report outcomes of combined intracavitary/interstitial (IC/IS) image-guided brachytherapy (IGBT) in locally advanced cervical cancer, and to compare its dosimetric parameters with intracavitary-only (IC) brachytherapy in a first-in-country experience. METHODS AND MATERIALS: Between January 2021 and September 2022, a total of 160 insertions were done in 40 patients with FIGO IB3-IVA cervical cancer undergoing IGBT using a hybrid (Utrecht) applicator. Corresponding treatment plans for IC brachytherapy were generated during treatment, and optimized. A preplanned comparison of dosimetric parameters, defined in GEC-ESTRO was conducted. RESULTS: The clinical use of a hybrid IC/IS applicator was feasible in all insertions. An average of 14 needles were inserted in each patient over four fractions. Mean HR-CTV D90 and D98 was 86 (SD 1.9) Gy and 75.7 (SD 2.3) Gy using hybrid applicator, and 80 (SD 5.4) Gy and 69.8 (SD 5.2) Gy using IC applicator, with a mean dose gain of 6.0 (SD 5.0) Gy and 5.9 (SD 4.7) Gy (p <0.001), respectively. Likewise, mean D2cc for bladder and sigmoid were significantly lower in the hybrid technique. Mean contribution of brachytherapy to total HR-CTV D90 (in absolute EQD2 Gy) was 41.7 Gy using IC/IS applicator while 35.7 Gy for IC-only applicator (p = 0.027). Clinical response at 12 weeks showed an overall response rate (ORR) and complete response (CR) rates of 92.5% and 77.5%, respectively. CONCLUSIONS: IGBT using a hybrid IC/IS applicator showed excellent tolerability and yielded favorable results, resulting in significant dosimetric improvement in terms of primary target dose, and sparing OARs.


Assuntos
Braquiterapia , Neoplasias do Colo do Útero , Feminino , Humanos , Neoplasias do Colo do Útero/radioterapia , Dosagem Radioterapêutica , Braquiterapia/métodos , Órgãos em Risco , Planejamento da Radioterapia Assistida por Computador/métodos
13.
ACS Omega ; 9(12): 13860-13871, 2024 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-38559976

RESUMO

The potential nutrient uptake abilities of a plant are essential for improving the yield and quality. Green manures can take up a huge amount of macronutrients from the soil. The mechanisms underlying the differences in nutrient uptake capacity among different nonlegume species remain unclear. The plot experiments were conducted to investigate the performance of nonlegume species including forage radish (Raphanus raphanistrum subsp. sativus), oil radish (Raphanus sativus var. Longipinnatus), February orchid (Orychophragmus violaceus L), and rapeseed (Baricca napus), while a ryegrass (Lolium perenne L.) species was used as a control. The study results showed that forage radish had the highest nutrient uptake (N and P), i.e., 322 and 101% in Hunan and 277 and 469% in the Sichuan site, respectively, compared with the control. While the greatest K uptake was found in forage radish, i.e., 123%, and February orchid, 243%, in the Hunan and Sichuan sites. Forage radish also presented higher phosphorus use efficiency in both experimental areas: Hunan by 301% and Sichuan by 633% compared to the control. Significant modifications were found in nutrient availability and enzyme activities after the cultivation of various species. The oil radish enhanced the ß-glucosidase (BG) and leucine-aminopeptidase enzyme activities by 324 and 367%, respectively, while forage radish developed the highest phosphatase (Phase) and N-acetyl-glucosaminidase (NAG) activities compared to the ryegrass in Hunan. In the Sichuan site, the oil radish promotes enzyme activities such as Phase (126%), BG (19%), and NAG (17%), compared to the control. It is concluded that forage radish, oil radish, and February orchid can easily improve soil nutrient quality in green manuring practices and provide valuable nutrient management systems.

14.
Spectrochim Acta A Mol Biomol Spectrosc ; 320: 124556, 2024 Nov 05.
Artigo em Inglês | MEDLINE | ID: mdl-38850820

RESUMO

For the sustainable advancement of industrial expansion that is environmentally conscious, harmful dyes must be removed from wastewater. Untreated effluents containing colors have the potential to harm the ecosystem and pose major health risks to people, animals, and aquatic life. Here, we have fabricated Ni or Fe modified with BaTiO3 materials and effectively utilized them for Reactive Red 120 (RR 120) dye degradation under UV-A light. The synthesized materials were characterized, and their structural, and photo-physical properties were reported. Phase segregation was not present in the XRD pattern, as evidenced by the absence of secondary phase peaks linked to iron, nickel, or oxides. Low metal ion concentrations may be the cause of this, and the presence of those elements was confirmed by XPS measurements. The Raman spectra of the BaTiO3/Ni and BaTiO3/Fe samples show a widened peak at 500 cm-1, which suggests that Ni or Fe are efficiently loaded onto the BaTiO3. RR 120 dye photodegradation under UV light conditions was effectively catalyzed by BaTiO3/Fe, as evidenced by its superior performance in the UV irradiation technique over both BaTiO3 and BaTiO3/Ni. Compared to bare BaTiO3, both metal-modified materials efficiently degraded the RR 120 dye. Acidic pH facilitated the degradation process, which makes sense given that the heterogeneous photo-Fenton reaction was the mechanism of degradation along with BaTiO3 sensitization. High-acidity sewage can be dangerous and carcinogenic, and conventional biological treatment methods are not appropriate for managing it. In the current investigation, it may be used to treat color effluents with extremely low pH levels. Additionally, the ability of the produced nanocomposites to inhibit the growth of twenty pathogens was examined, along with two fungi, fifteen Gram-negative Bacilli (GNB), one Gram-positive Bacilli (GPB), and two Gram-positive Cocci (GBC).


Assuntos
Compostos de Bário , Ferro , Níquel , Fotólise , Titânio , Raios Ultravioleta , Titânio/química , Titânio/farmacologia , Ferro/química , Níquel/química , Compostos de Bário/química , Rodaminas/química , Corantes/química , Análise Espectral Raman , Poluentes Químicos da Água/química , Triazinas
15.
Sci Rep ; 14(1): 11139, 2024 05 15.
Artigo em Inglês | MEDLINE | ID: mdl-38750151

RESUMO

Fertilizers application are widely used to get a higher yield in agricultural fields. Nutrient management can be improved by cultivating leguminous species in order to obtain a better understanding of the mechanisms that increase the amount of available phosphorus (P) and potassium (K) through fertilizer treatments. A pot experiment was conducted to identify the leguminous species (i.e., chickpea and pea) under various fertilizer treatments. Experimental design is as follows: T0 (control: no fertilizer was applied), T1: P applied at the level of (90 kg ha-1), T2: (K applied at the level of 90 kg ha-1), and T3: (PK applied both at 90 kg ha-1). All fertilizer treatments significantly (p < 0.05) improved the nutrient accumulation abilities and enzymes activities. The T3 treatment showed highest N uptake in chickpea was 37.0%, compared to T0. While T3 developed greater N uptake in pea by 151.4% than the control. However, T3 treatment also increased microbial biomass phosphorus in both species i.e., 95.7% and 81.5% in chickpeas and peas, respectively, compared to T0 treatment. In chickpeas, T1 treatment stimulated NAGase activities by 52.4%, and T2 developed URase activities by 50.1% higher than control. In contrast, T3 treatment enhanced both BGase and Phase enzyme activities, i.e., 55.8% and 33.9%, respectively, compared to the T0 treatment. Only the T3 treatment improved the activities of enzymes in the pea species (i.e., BGase was 149.7%, URase was 111.9%, Phase was 81.1%, and NAGase was 70.0%) compared to the control. Therefore, adding combined P and K fertilizer applications to the soil can increase the activity of enzymes in both legume species, and changes in microbial biomass P and soil nutrient availability make it easier for plants to uptake the nutrients.


Assuntos
Biomassa , Cicer , Fertilizantes , Fósforo , Microbiologia do Solo , Solo , Fósforo/metabolismo , Solo/química , Cicer/metabolismo , Cicer/crescimento & desenvolvimento , Fabaceae/metabolismo , Fabaceae/crescimento & desenvolvimento , Potássio/metabolismo , Pisum sativum/metabolismo , Pisum sativum/crescimento & desenvolvimento , Nitrogênio/metabolismo , Nutrientes/metabolismo
16.
Spectrochim Acta A Mol Biomol Spectrosc ; 315: 124264, 2024 Jul 05.
Artigo em Inglês | MEDLINE | ID: mdl-38603961

RESUMO

Design and eco-friendly fabrication of affordable and sustainable materials for the treatment of wastewater consisting of dyes, antibiotics, and other harmful substances has always been demanding. Untreated wastewater being released from industries imposes serious threats to our ecosystem, seeking convenient approaches to diminish this alarming issue. Here in this work, we synthesized MgO/CuO nanocomposites from a plant extract of Ammi visnaga L. and then employed these nanocomposites for the treatment of organic dye (methylene blue). We characterized the synthesized nanocomposites by dynamic light scattering (DLS), zeta potential, scanning electron microscopy (SEM), atomic force microscopy (AFM), transmission electron microscopy (TEM), x-ray diffraction (XRD), and X-ray photoelectron microscopy (XPS). DLS presented information about the explicit size of nanocomposites, while the surface charge was examined by zeta potential. XRD provided detailed information about the crystalline behavior and the information regarding surface morphology and size was extracted by SEM, TEM, and AFM. Moreover, the fabricated nanocomposites were used as a photocatalyst in the treatment of methylene blue. The overall catalytic reaction took an hour to complete, and the value of percentage degradation was 98 %. Substantially, a detailed account of the kinetics, rate of reaction, and mechanism is also fostered in the context. The presented study can assist scientists and researchers around the world to reproduce the results and use them to apply them on a broader scale.

17.
Spectrochim Acta A Mol Biomol Spectrosc ; 318: 124513, 2024 Oct 05.
Artigo em Inglês | MEDLINE | ID: mdl-38815298

RESUMO

In this study, we report the successful synthesis of Ni-doped ZnS nanocomposite via a green route using ethanolic crude extract of Avena fatua. The as-synthesized nanocomposite was comprehensively characterized using Dynamic light scattering (DLS), Zeta potential, scanning electron microscopy (SEM), Transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), and Atomic force microscopy (AFM). These analyses provided detailed insights into the size, morphology, composition, surface properties, and structural characteristics of the nanocomposite. Subsequently, the synthesized nanocomposite was evaluated for their photocatalytic performance against the organic dye Methyl orange. Remarkably, the nanocomposite exhibited rapid and efficient degradation of Methyl orange, achieving 90 % degradation within only 30 min of irradiation under UV light. Moreover, the photocatalyst demonstrated an exceptional hydrogen production rate, reaching 167.73 µmolg-1h-1, which is approximately 4.5 times higher than that of its pristine counterparts. These findings highlight the significant potential of Ni-doped ZnS nanocomposite as highly efficient photocatalysts for wastewater treatment and hydrogen production applications.

18.
Opt Quantum Electron ; 55(8): 704, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37324174

RESUMO

Klein-Gordon equation characterizes spin-particles through neutral charge field within quantum particle. In this context, fractionalized Klein-Gordon equation is investigated for the comparative analysis of the newly presented fractional differential techniques with non-singularity among kernels. The non-singular and non-local kernels of fractional differentiations have been employed on Klein-Gordon equation for the development of governing equation. The analytical solutions of Klein-Gordon equation have been traced out by fractional techniques by means of Laplace transforms and expressed in terms of series form and gamma function. The data analysis of fractionalized Klein-Gordon equation is observed for Pearson's correlation coefficient, probable error and regression analysis. For the sake of comparative analysis of fractional techniques, 2D sketch, 3D pie chart, contour surface with projection and 3D bar sketch have been depicted on the basis of embedded parameters. Our results suggest that varying frequency has reversal trends for quantum wave and de Broglie wave.

19.
Surg Neurol Int ; 14: 5, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36751457

RESUMO

Background: Chronic myeloid leukemia (CML) is mostly asymptomatic at diagnosis. Intracerebral hemorrhage (ICH), as the first presentation of CML in its chronic phase (CP) has only once been reported in the literature. In addition, CML (CP) patients developing ICH are equally rare, with only eight cases reported. ICH is more commonly associated with CML progressing to its end stage (accelerated phase [AP] and blast crisis [BC]). The pathophysiology of ICH in CML-CP is postulated to be due to leukostasis, unlike in the CML-AP/BC, where thrombocytopenia and coagulopathy are the underlying mechanisms. This case adds to the scarce literature on a rare and challenging complication of ICH in CML-CP, especially as these patients tend to rebleed and management is uncertain. Case Description: A 22-year-old male presented with a 2-week history of headaches and vomiting, associated with a 1-week history of the left-sided weakness. Initial blood work revealed hyperleukocytosis. The patient was investigated for CML with intracranial involvement. During his stay, his Glasgow coma score (GCS) dropped (from 14 to 11), prompting an urgent CT scan which revealed a large resolving ICH with perifocal edema and midline shift. A decompressive hemicraniectomy with expansion duraplasty was performed to alleviate the mass effect and reduce intracranial pressure. Three hours postoperatively, the patient developed an extradural hematoma which needed prompt evacuation. A postoperative CT revealed an improved midline shift, and after 7 days, his GCS improved to 15, and he began oncological treatment. Neurological symptoms were experienced by our patient at presentation with hyperleukocytosis on full blood count, which may implicate leukostasis as an underlying mechanism. Conclusion: Even in the CP, CML patients presenting with mild neurological symptoms should be investigated to exclude intracranial bleeds. As these patients tend to rebleed, they should be conservatively managed unless there is a need to alleviate intracranial pressure.

20.
Asian J Neurosurg ; 18(2): 404-409, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37397037

RESUMO

Cardiovascular changes following lumbar spine surgery in a prone position are exceedingly rare. Over the past 20 years, a total of six cases have been published where patients experienced varying degrees of bradycardia, hypotension, and asystole, which could be attributed to intraoperative dural manipulation. As such, there is emerging evidence for a potential neural-mediated spinal-cardiac reflex. The authors report their experience of negative chronotropy during an elective lumbar spine surgery that coincided with dural manipulation and review the available literature. A 34-year-old male presented with a long-standing history of lower back pain recently deteriorating to bilaterally radiating leg pain, with restricted left leg raise, and numbness at the left L5 dermatomal territory. The patient was an athletic police officer with no comorbidities or past medical history. Magnetic resonance imaging lumbosacral spine revealed spinal stenosis most pronounced at L4/L5 and disc bulges at L3/L4 and L5/S1. The patient opted for lumbar decompression surgery. After an unremarkable comprehensive preoperative workup, including cardiac evaluation (electrocardiogram, echocardiogram), the patient was induced general anesthesia in a prone position. A lumbar incision was made from L2 to S1. When the left L4 nerve root was retracted while removing the prolapsed disc at L4/L5, the anesthetist cautioned the surgeon of bradycardia (34 beats per minute [bpm]), and the surgery was immediately stopped. The heart rate improved to 60 bpm within 30 seconds. When the root was later retracted again, a second episode of bradycardia occurred for 4 minutes with heart rate declining to 48 bpm. The surgery was stopped, and after 4 minutes, the anesthetist administered 600 µg of atropine. The heart rate then rose to 73 bpm within 1 minute. Other potential causes for bradycardia were excluded. The total blood loss was estimated to be 100 mL. He remains well at his 6-month follow-up and has returned to work as normal. Akin to previously published cases, each episode of bradycardia coincided with dural manipulation, which may indicate a possible reflex between the spinal dura mater and the cardiovascular system. Such a rare adverse event may occur even in seemingly healthy, young individuals, and anesthetists should caution the operating surgeon of bradycardias to exclude operative manipulation of the dura as the cause. While this phenomenon is only reported in a handful of lumbar spine surgery cases, it provides evidence for a potential spinal-cardiac physiological reflex in the lumbar spine that may be neural mediated and should be investigated further.

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