Journal of Current Science and Technology最新文献_第10页

HCPFRP: Heterogeneous cluster prediction and formation routing protocol for wireless sensor network HCPFRP:无线传感器网络的异构簇预测和编队路由协议

Journal of Current Science and Technology Pub Date : 2023-07-13 DOI: 10.59796/jcst.v13n2.2023.1745

Kamini Maheshwar, S Veenadhari

{"title":"HCPFRP: Heterogeneous cluster prediction and formation routing protocol for wireless sensor network","authors":"Kamini Maheshwar, S Veenadhari","doi":"10.59796/jcst.v13n2.2023.1745","DOIUrl":"https://doi.org/10.59796/jcst.v13n2.2023.1745","url":null,"abstract":"Wireless sensor network (WSN) is composed of multiple sensors that are connected through a communication channel and communicate with each other. As these sensor nodes are battery-operated, therefore, as a consequence, battery life or energy is always an issue of concern. Therefore, researchers focus their work on optimizing the routing strategies to save energy wastage in WSNs. Among all routing strategies, cluster-based techniques proved to be quite able to successfully manage propagation from sender to receiver. Because it must gather all data and send it to the base station, each cluster's elected head is responsible for bearing the complete load. A cluster-based routing mechanism is established under this paper and termed a Heterogeneous Cluster Prediction and Formation Routing Protocol (HCPFR) in which the algorithm first creates the cluster and predicts the energy utilization or network lifetime, and then provides energy-efficient optimized clustering. In this method, the proposed HCPFR model is compared with different methods; LEACH PSO, LEACH-GWO, LEACH-EEGWO, and FZR, and the performance is compared with different parameters mainly First Dead Node (FDN), Network Longevity (NL) and throughput (THP) in term of packet delivered and residual energy. The result shows that the HCPFR model outperforms better over these approaches. The FDN, NL, and THP of the proposed HCPFR are nearly 8000,10000, and 30000. Also, the suggested model shows that as the number of rounds increases the residual energy drops to 0.1 from 3.8 as the rounds increases to 10000 from 2000.","PeriodicalId":36369,"journal":{"name":"Journal of Current Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86929427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biogenic synthesis, characterization and applications of Tellurium nanoparticles from Chicoreus virgineus (Roding, 1798) 碲纳米颗粒的生物合成、表征及应用[j]。

Journal of Current Science and Technology Pub Date : 2023-07-13 DOI: 10.59796/jcst.v13n2.2023.1742

P. Subavathy, G. Amala Jothi Grace

{"title":"Biogenic synthesis, characterization and applications of Tellurium nanoparticles from Chicoreus virgineus (Roding, 1798)","authors":"P. Subavathy, G. Amala Jothi Grace","doi":"10.59796/jcst.v13n2.2023.1742","DOIUrl":"https://doi.org/10.59796/jcst.v13n2.2023.1742","url":null,"abstract":"Nanoparticles will offer a better perspective for the biogenic manner of the future. The green material's reducing agents offer a crucial pathway for the synthesis of metal nanoparticles. A biological method was adopted to develop tellurium mediated nanoparticles with the shell of marine gastropod Chicoreus virgineus. 10.7 g of Tellurium tetrachloride was dissolved in 1 L of the double distilled water to prepare 0.01 M Solution.The nanoparticle synthesis was confirmed by UV-Visible spectroscopy, the absorbance values of the nanoparticles generated were identified and the wavelength around 300nm was observed. The presence of reducing agents is indicated by Fourier Transform Infrared Spectroscopy. FTIR analysis showed the peak values from 3336.35 cm-1 to 708.30 cm-1. Images from atomic force microscopy and scanning electron microscopy were used to display the surface morphology. The rod like structure and spherical, uniform shape of tellurium nanoparticles were observed. The particle size of 21.31 nm was recorded for the synthesized nanoparticles. The antibacterial, antifungal, DPPH scavenging, and hydrogen peroxide scavenging assay activity of the produced nanoparticles was tested. The maximum zone of inhibition was observed against the pathogens viz., Propionibacterium acnes (6.5 mm) and Aspergillus fumigatus (16.5 mm). The highest percentage inhibition of 71.4% for DPPH scavenging activityand 92.12% for hydrogen peroxide assay were observed. Theoutcomes demonstrated that this affordable synthesis found many useful biomedical applications. The current investigation is one of the eco-friendly methods of synthesis and it is an easy method for the synthesis of nanoparticles. These nanoparticles act as an effective antibacterial, antifungal and antioxidant agent. Hence it will show a greater scope in the medicinal field. The nanoparticles derived from marine gastropod Chicoreus virgineus has good biocompatibility. Only few studies have been reported earlier using the marine molluscs. ","PeriodicalId":36369,"journal":{"name":"Journal of Current Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76130284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Trace elements in market vegetables of Kuantan, Pahang: Estimation of dietary exposure 彭亨州关丹市市售蔬菜中的微量元素:膳食暴露量的估算

Journal of Current Science and Technology Pub Date : 2023-06-15 DOI: 10.15282/cst.v2i2.8869

J. Tay, N. W. Sulong, N. Zaharudin

{"title":"Trace elements in market vegetables of Kuantan, Pahang: Estimation of dietary exposure","authors":"J. Tay, N. W. Sulong, N. Zaharudin","doi":"10.15282/cst.v2i2.8869","DOIUrl":"https://doi.org/10.15282/cst.v2i2.8869","url":null,"abstract":"A study was conducted to investigate the concentrations of seven essential elements: Copper (Cu), iodine (I), manganese (Mn), molybdenum (Mo), nickel (Ni), selenium (Se) and zinc (Zn) as well as three non-essential elements: Arsenic (As), cadmium (Cd) and lead (Pb) in nine ready-to-eat market vegetables collected from Kuantan, Pahang. Samples of vegetables were obtained from a local market, acid-digested with nitric acid and then analysed for elements using Inductively Coupled Plasma - Mass Spectrometry (ICP-MS). The mean concentration of essential elements decreased in the following order: Mn>Zn>Mo>Cu>I>Ni>Se, with individual concentrations ranging from below detection limit (bdl) to 207 mg/kg dw. Cadmium, a non-essential element, was detected in 8 samples at a mean concentration of 0.06 mg/kg dw, while Pb and As were not detected (bdl) in all samples. The estimated daily dietary intake (EDI) as well as the potential health risk associated with vegetable consumption were calculated. Hazard quotient (HQ) values less than one were obtained for both children and adults, indicating that consumption of these vegetables poses low risk to health.","PeriodicalId":36369,"journal":{"name":"Journal of Current Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77412118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phenothiazine-functionalized rGO for Electrochemical Capacitor 电化学电容器用吩噻嗪功能化氧化石墨烯

Journal of Current Science and Technology Pub Date : 2023-06-15 DOI: 10.15282/cst.v2i2.9292

K. Chong, Lee S.P., Saufi N.H.M., Teo E.Y.L.

引用次数: 0

Polyvinylidene Fluoride (PVDF) / Poly (Ether Sulfones) (PES) Blend Membrane For CO2/CH4 Separation 聚偏氟乙烯(PVDF) /聚醚砜(PES)共混膜用于CO2/CH4分离

Journal of Current Science and Technology Pub Date : 2023-06-15 DOI: 10.15282/cst.v2i2.9411

Ramzi Qasem, S. A. Rahman, M. Bijarimi, W. Alhadadi

{"title":"Polyvinylidene Fluoride (PVDF) / Poly (Ether Sulfones) (PES) Blend Membrane For CO2/CH4 Separation","authors":"Ramzi Qasem, S. A. Rahman, M. Bijarimi, W. Alhadadi","doi":"10.15282/cst.v2i2.9411","DOIUrl":"https://doi.org/10.15282/cst.v2i2.9411","url":null,"abstract":"In this study, a combination of Polyvinylidene fluoride (PVDF) and Poly (ether sulfones) (PES) blend membrane and DMF as solvent component was developed to evaluate the CO2 and CH4 separation performance. The gas permeation test was thereafter conducted on the membrane produced. The separation through a membrane works on the theory of permeation based on permeability and selectivity. These two important values were estimated using a set of analytical functions. The membranes produced was then characterized using scanning electron microscopy (SEM) and the Fourier Transform Infrared Spectroscopy (FTIR). The result obtained revealed that a higher permeability for the CO2 and CH4 gases when the blending ratio of membrane and solvent of PVDF:PES:DMF/ 5:15:80 were applied. Moreover, the selectivity results showed that the use of the blending ratio of PVDF:PES:DMF/ 20:0:80 produce the highest selectivity (1.3086 GPU) while blending ratio of PVDF:PES:DMF/ 10:10:80 exhibited the least selectivity. In addition, the morphological elucidation revealed the presence of pores for every cross-section composite membrane and this aids the permeability properties of the membrane aggregates at different blending ratio. Also, the FTIR results showed nearly similar functional group characteristics.","PeriodicalId":36369,"journal":{"name":"Journal of Current Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73274164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Applications of Nanomaterials for Biosensor Fabrication Based on Redox Enzyme and Protein: A Short Review 基于氧化还原酶和蛋白质的纳米材料在生物传感器制造中的应用综述

Journal of Current Science and Technology Pub Date : 2023-06-15 DOI: 10.15282/cst.v2i2.9291

N. S. Azmi, Md. Ashraful Kader, Kafiluddin Akm

{"title":"Applications of Nanomaterials for Biosensor Fabrication Based on Redox Enzyme and Protein: A Short Review","authors":"N. S. Azmi, Md. Ashraful Kader, Kafiluddin Akm","doi":"10.15282/cst.v2i2.9291","DOIUrl":"https://doi.org/10.15282/cst.v2i2.9291","url":null,"abstract":"Redox enzyme and protein modified biosensors are commercially triumphant bioelectronic devices used in the point-of-care analysis. The use of nanotechnology derived nanomaterials during enzyme immobilization creates a synergistic effect by integrating enzyme’s recognition and catalytic properties with the electronic properties of nanomaterials. This synergy improves the biosensor’s sensitivity, conductivity stability, surface-to-volume ratio, selectivity, detection limit and other analytical features. This critical review focuses on the redox enzymes and proteins most frequently used in glucose and hydrogen peroxide sensing, such as horseradish peroxidase (HRP), glucose oxidase (GOx), hemoglobin (HB), and cytochrome C (Cyt c). Besides, we evaluate the state of art of this approach, selection of nanomaterials, preparation and immobilization mechanisms, their role and sensing applications. Besides advantages, the discussions have discussed on the pressing challenges of developing these sensors. This review will guide the research community to develop rational and highly efficient nanomaterial immobilized biosensors.","PeriodicalId":36369,"journal":{"name":"Journal of Current Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90293371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enzymatic Analysis and Characterization of Bromelain from Two Varieties of Pineapple (Ananas comosus) Fruit and Stem Extracts 两个菠萝品种果实和茎提取物中菠萝蛋白酶的酶学分析和特性研究

Journal of Current Science and Technology Pub Date : 2023-06-15 DOI: 10.15282/cst.v2i2.9289

A. N. M. Ramli, N. Munir

{"title":"Enzymatic Analysis and Characterization of Bromelain from Two Varieties of Pineapple (Ananas comosus) Fruit and Stem Extracts","authors":"A. N. M. Ramli, N. Munir","doi":"10.15282/cst.v2i2.9289","DOIUrl":"https://doi.org/10.15282/cst.v2i2.9289","url":null,"abstract":"This study was designed to examine the presence of enzymatic activity of fruit and stem bromelain extracted from two varieties of pineapple (Ananas comosus): Morris and Sarawak. The bromelain crude extract obtained from fruits and stems were tested for their protein content via Bradford’s assay, and both crude extract from Morris variety showed the highest value. Further analysis was done to investigate the proteolytic activity of the crude fruit and stem bromelain, resulting in Morris variety having the highest activity for fruit bromelain, while Sarawak variety having the highest activity for stem bromelain. The Gelatin Digestion Unit (GDU) analysis performed revealed both fruit and stem bromelain from Morris variety exhibited the highest activity. Furthermore, the temperature optimization showed that both fruit bromelain of Morris and Sarawak varieties were optimum at 35 ℃, while stem bromelain from both pineapple varieties were optimum at 45 ℃. Meanwhile, the optimum value of the pH for Sarawak variety extract of fruit and stem bromelain were found at pH 5.6, while Morris variety were optimum at pH 6.6. These results indicated both varieties of pineapple extracts of fruits and stems were having bromelain enzyme that can be further developed for application at industrial level.","PeriodicalId":36369,"journal":{"name":"Journal of Current Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85770355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Review Study on the Potential of Microalgae Biomass Producing Biopolymer Material 微藻生物质生产生物高分子材料的潜力研究综述

Journal of Current Science and Technology Pub Date : 2023-06-15 DOI: 10.15282/cst.v2i2.9413

N. Ahmad, Abdurahman Nour Hamid, Adil M. Osman

引用次数: 0

On-Site Sequencing Of Sars-Cov-2 Genomes Identify Two Variant Of Concern Clusters In Pahang, Malaysia 在马来西亚彭亨市对Sars-Cov-2基因组进行现场测序，确定了两个令人关注的聚集性病变

Journal of Current Science and Technology Pub Date : 2023-06-15 DOI: 10.15282/cst.v2i2.8859

H. F. Ahmad, U. A. Zainulabid, Wan Nurliyana Wan Ramli, Raihanah Haroon, A. Aslam, Mushtaq Hussain

{"title":"On-Site Sequencing Of Sars-Cov-2 Genomes Identify Two Variant Of Concern Clusters In Pahang, Malaysia","authors":"H. F. Ahmad, U. A. Zainulabid, Wan Nurliyana Wan Ramli, Raihanah Haroon, A. Aslam, Mushtaq Hussain","doi":"10.15282/cst.v2i2.8859","DOIUrl":"https://doi.org/10.15282/cst.v2i2.8859","url":null,"abstract":"Timely variant identification is required in respond to effective public health measures. It has been demonstrated that comprehending genetic epidemiology can be aided by a combination of public health expertise and through viral genomic sequencing using Oxford Nanopore Technologies (ONT). The purpose of this study is to determine the utility of using Oxford Nanopore Sequencing to elucidate the genetic epidemiology in two significant clusters in Pahang, Malaysia. The combined oropharyngeal and nasopharyngeal swabs of clinical specimens from two significant clusters in Pahang, Malaysia, were retrieved for long-read sequencing. Results: We identify Beta and Delta variants as 2 variants of concern from our analysis. We found that the B.1.351 (ß) and B.1.617 (D) variants were responsible for the Taman Tanah Putih Baru and Pasar Kemunting clusters, respectively. In conclusion, ONT long-read sequencing tools offer a practical solution with a number of advantages. ONT devices are compact, affordable, and need little technical hands-on or laboratory equipment to prepare samples. They can also be used to quickly and adaptably execute sequencing analyses and to understand genomic epidemiology.","PeriodicalId":36369,"journal":{"name":"Journal of Current Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90636111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In Vitro Safety & Quality Analysis on Three Species of Tongkat Ali Plants & Their In Vivo Elevation of Testosterone in Fowls 三种东革阿里植物的体外安全性和质量分析及其对家禽体内睾酮水平的提高

Journal of Current Science and Technology Pub Date : 2023-06-15 DOI: 10.15282/cst.v2i2.9293

Tn Said Sharifah Aminah, J. Vejayan, Yasmin Amirah C.Y

{"title":"In Vitro Safety & Quality Analysis on Three Species of Tongkat Ali Plants & Their In Vivo Elevation of Testosterone in Fowls","authors":"Tn Said Sharifah Aminah, J. Vejayan, Yasmin Amirah C.Y","doi":"10.15282/cst.v2i2.9293","DOIUrl":"https://doi.org/10.15282/cst.v2i2.9293","url":null,"abstract":"Eurycoma longifolia, Polyathia bullata, and Stema tuberosa are three species of plants sharing the synonym of \"Tongkat Ali\" and commonly known as Tongkat Ali Putih, Tongkat Ali Hitam, and Tongkat Ali Merah, respectively. However, less study has been done on its effectiveness to increase testosterone by P. bullata and S. tuberosa compared to E. longifolia. In this study, all three types of Tongkat Ali were compared for their testosterone elevations in fowls. The roots of the plants were encapsulated and given to fowls. Before being tested on animals, the capsules' content was analyzed on a few safety and quality parameters, i.e., pH and moisture tests, heavy metal content, microbial load, and steroid presence. A total of 12 mg of each Tongkat Ali powdered material included in a capsule and given to 14 fowls for 30 days. The outcome showed an increase in testosterone in fowls with the highest value of 9.73 ± 1.20 nmol/L obtained by P. bullata, followed by E. longifolia and S. tuberosa, 7.70 ± 0.59 nmol/L, and 6.25 ± 0.70 nmol/L, respectively compared to the control of only 4.08 ± 0.85 nmol/L. The results showed that P. bullata and S. tuberosa were safe to consume (in vitro) and able to increase testosterone level in the fowls (in vivo). Thus, it also provide added information on the less studied Tongkat Ali plants and their potential as an aphrodisiac plants.","PeriodicalId":36369,"journal":{"name":"Journal of Current Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90715122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0