International Journal of Frontline Research in Chemistry and Pharmacy最新文献

Preparation and physicochemical characterization of emulsion alkyd resins from cottonseed, Hura crepitans L. seed and palm kernel oils 棉籽、胡拉籽和棕榈仁油乳液型醇酸树脂的制备及理化性质研究

International Journal of Frontline Research in Chemistry and Pharmacy Pub Date : 2023-02-28 DOI: 10.56355/ijfrcp.2023.2.1.0052

Ibanga O. Isaac, Itoro E. Willie, Ndifreke S. Idio

{"title":"Preparation and physicochemical characterization of emulsion alkyd resins from cottonseed, Hura crepitans L. seed and palm kernel oils","authors":"Ibanga O. Isaac, Itoro E. Willie, Ndifreke S. Idio","doi":"10.56355/ijfrcp.2023.2.1.0052","DOIUrl":"https://doi.org/10.56355/ijfrcp.2023.2.1.0052","url":null,"abstract":"The growing environmental concerns have led to the formulation of new coating strategies by employing inherently waterborne binders as a key component in order to eliminate the toxic volatile organic solvents from protective coatings. Hura crepitans L. seed oil (HCSO) was extracted from the seed pulp via solvent extraction and characterized using standard methods. Cottonseed oil (COSO), palm kernel oil (PKO), and HCSO were used in the formulation of emulsion alkyd resins (EMAR) via a two-stage alcoholysis-polyesterification process followed by the introduction of maleic anhydride in the polymer backbone and neutralization of the free acid functionality with triethylamine (TEA). Three grades EMAR (50%) were prepared using these oils, phthalic anhydride, glycerol, and maleic anhydride. The percentage yield of HCSO was 87.93%. While the iodine and acid values of HCSO were 145.90 g I2/100 g and 1.26 mg KOH/g respectively. COSO emulsion alkyd (CWAR), HCSO emulsion alkyd (HWAR), and PKO emulsion alkyd (PWAR) were highly soluble in water, while the iodine value of 81.38 gI2/100g, 85.02 gI2/100g, and 10.45 gI2/100g was recorded for CWAR, HWAR, and PWAR respectively. The solid content of the binders varied between 84.88 – 85.48%. While the viscosity varied between 1756.00 – 1768.00 mpa.s. HCSO and COSO can serve as good starting raw materials for the synthesis of environmentally friendly waterborne alkyd resin.","PeriodicalId":431989,"journal":{"name":"International Journal of Frontline Research in Chemistry and Pharmacy","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116547600","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: 1

Nutrition and obesity: review 营养与肥胖:综述

International Journal of Frontline Research in Chemistry and Pharmacy Pub Date : 2023-01-30 DOI: 10.56355/ijfrcp.2023.2.1.0032

Ho Soonmin, Muhammad Akram, Umme Laila, Muhammad Talha Khalil

引用次数: 1

Trace metals assessment in agricultural soil and irrigation water at hail region Saudi Arabia 沙特阿拉伯冰雹地区农业土壤和灌溉水中痕量金属的评价

International Journal of Frontline Research in Chemistry and Pharmacy Pub Date : 2022-07-30 DOI: 10.56355/ijfrcp.2022.1.1.0004

Amal H Al-Bagawi, Dorsaf Mansour, Shomokh AM Aljabri

引用次数: 0

Comparison of dexamethasone with local anaesthetic versus local anaesthetic for laparoscopic port infiltration to assess effectiveness for post-operative analgesia 地塞米松局部麻醉与局部麻醉在腹腔镜气道浸润术后镇痛效果的比较

International Journal of Frontline Research in Chemistry and Pharmacy Pub Date : 2022-07-30 DOI: 10.56355/ijfrcp.2022.1.1.0003

Md. Ariful Hoque, Shamima Nasrin Shadia, Moazzem Hossain

{"title":"Comparison of dexamethasone with local anaesthetic versus local anaesthetic for laparoscopic port infiltration to assess effectiveness for post-operative analgesia","authors":"Md. Ariful Hoque, Shamima Nasrin Shadia, Moazzem Hossain","doi":"10.56355/ijfrcp.2022.1.1.0003","DOIUrl":"https://doi.org/10.56355/ijfrcp.2022.1.1.0003","url":null,"abstract":"Early postoperative pain remains the most prevalent complaint after any surgery. Beside conventional IV analgesic medications, subcutaneous infiltration has been established as a reliable pain relief technique. Addition of dexamethasone to local anaesthetic (example: bupivacaine, lidocaine) can also be used as it has some beneficial effect than use of bupivacaine only. The objectives of this study to evaluate the duration of analgesic effects of dexamethasone with local anaesthetic as compared to local anaesthetic in post operative patient. This Randomized controlled trial study was conducted among 60 patients who underwent Laparoscopic cholecystectomy. This study was conducted from January,2019 to June,2019. All patients who underwent laparoscopic cholecystectomy surgery were selected by purposive sampling. Data were compiled, edited, analyzed. The SPSS version 23 was used for data analysis. In this study distributing the patient in demographic changes, age, sex, BMI do not show any significant change. Most Group 2 patients have long analgesia effect (NRS score more than 5), delay requirement of first rescue analgesia. NRS (Numerical Rating Scale) score in Group 2 were persistently lower than that of Group 1. This revealed that combination of Bupivacaine and Dexamethasone is quite effective in reducing postoperative port site pain in comparison to Bupivacaine (P=<0.001).","PeriodicalId":431989,"journal":{"name":"International Journal of Frontline Research in Chemistry and Pharmacy","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133497426","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

Successive infusion of Mncl2 in order to analyze the image produced by MRI machines 连续输注Mncl2，以便分析MRI机器产生的图像

International Journal of Frontline Research in Chemistry and Pharmacy Pub Date : 2022-07-30 DOI: 10.56355/ijfrcp.2022.1.1.0005

Habibu Ahmad Ibrahim, Yusuf Abubakar Maitama Hotoro, Abubakar Sani Garba, Bushra Khan

{"title":"Successive infusion of Mncl2 in order to analyze the image produced by MRI machines","authors":"Habibu Ahmad Ibrahim, Yusuf Abubakar Maitama Hotoro, Abubakar Sani Garba, Bushra Khan","doi":"10.56355/ijfrcp.2022.1.1.0005","DOIUrl":"https://doi.org/10.56355/ijfrcp.2022.1.1.0005","url":null,"abstract":"The use of MRI machines is a fast growing in the field of Medical Imaging. MRI machine operates on the principal of Nuclear Magnetic Resonance Imaging which can be explained by Quantum Mechanics or Classical Mechanics. Nuclear Magnetic Resonance Imaging is a process by which atomic nuclei containing protons and neutrons which are all inform of a magnetic field absorb and re-emit electromagnetic radiation. The energy of the emitted electromagnetic radiation is usually at a certain resonance frequency, which depends upon the strength of the magnetic field and the magnetic properties of the atoms. The resonance frequency produced is similar to radio frequency RF radiation, which when observed it produce a fine spectrum of anatomical structure of objects. MRI machines are currently used in hospitals and clinics to take the anatomical structures of the human body. And a wide variety of artifacts is routinely encountered on the images produced by this Machines. Manganese is a metal that was proposed to be use in NMRI machines, but due to it’s toxic nature and it is a heavy metal, it is not use at all. But we are able to produce metallic chloride of Mn2+ which over comes the toxicity of metal and behaves like a metallic Salt in the human body. However, we are able to successfully infuse MnCl2 into a Rat and a Rabbit due to its unique properties in order to analyse the images produced by a MRI Machine. Conclusively, we are able to observe that MnCl2 improves the images quality produced by the MRI Machine.","PeriodicalId":431989,"journal":{"name":"International Journal of Frontline Research in Chemistry and Pharmacy","volume":"155 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122556280","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

Acid-base pretreatment of lignocellulosic biomass to facilitate recovery of fermentable sugar for anaerobic fermentation 木质纤维素生物质的酸碱预处理促进可发酵糖的回收用于厌氧发酵

International Journal of Frontline Research in Chemistry and Pharmacy Pub Date : 2022-07-30 DOI: 10.56355/ijfrcp.2022.1.1.0001

Osuji MI, Nweke CO, Nwanyanwu CE

{"title":"Acid-base pretreatment of lignocellulosic biomass to facilitate recovery of fermentable sugar for anaerobic fermentation","authors":"Osuji MI, Nweke CO, Nwanyanwu CE","doi":"10.56355/ijfrcp.2022.1.1.0001","DOIUrl":"https://doi.org/10.56355/ijfrcp.2022.1.1.0001","url":null,"abstract":"The need for alternative source of energy cannot be overemphasized. Plant cells are mainly composed by lignocellulosic material, which includes cellulose, hemicellulose and lignin (lignocellulosic complex), Biogas produced from various lignocellulosic biomass, such as hardwood, agricultural, or forest residues, can be a useful replacement for the conventional energy production. Several physical, structural and compositional factors has the ability to stop the hydrolysis of cellulose present in biomass to simple sugar and other organic compounds that can later be converted to biofuels. The aim of pretreatment is to make the cellulose accessible to hydrolysis and to get rid of the recalcitrant lignin for conversion to fuels to be possible. Various pretreatment techniques change the physical and chemical structure of the lignocellulosic biomass and improve hydrolysis rates. During the past few years a large number of pretreatment methods have been developed, including alkali treatment, ammonia explosion, and others. Many methods have been shown to result in high sugar yields, above 90% of the theoretical yield for lignocellulosic biomasses such as woods, grasses, corn, and so on. This research work looks at acid-base pretreatment process methods. It also showed that this method works and can recover high percentage of simple sugar for fermentation. It adopts the technique of dilute acid low temperature.","PeriodicalId":431989,"journal":{"name":"International Journal of Frontline Research in Chemistry and Pharmacy","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127278968","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

Pseudohyperkalemia related to blood sampling at the University Hospital Center Professor Zafisaona Gabriel Mahajanga 假性高钾血症与大学医院中心Zafisaona Gabriel Mahajanga教授的血样有关

International Journal of Frontline Research in Chemistry and Pharmacy Pub Date : 2022-07-30 DOI: 10.56355/ijfrcp.2022.1.1.0002

Francine Isabelle Rakotonindrina, Rivo Solotiana Rakotomalala, Miora Koloina Ranaivosoa, Rissa Dahlia Njariaina, Tahirimalala Rabenandrianina, Olivat Rakoto Alson, Andry Rasamindrakotroka

{"title":"Pseudohyperkalemia related to blood sampling at the University Hospital Center Professor Zafisaona Gabriel Mahajanga","authors":"Francine Isabelle Rakotonindrina, Rivo Solotiana Rakotomalala, Miora Koloina Ranaivosoa, Rissa Dahlia Njariaina, Tahirimalala Rabenandrianina, Olivat Rakoto Alson, Andry Rasamindrakotroka","doi":"10.56355/ijfrcp.2022.1.1.0002","DOIUrl":"https://doi.org/10.56355/ijfrcp.2022.1.1.0002","url":null,"abstract":"Pseudohyperkalemia is common in routine laboratory tests. The objective of the present study is to determine pseudohyperkalemia associated with blood sampling and to analyze other causes that may explain the occurrence of hyperkalemia. A prospective descriptive and analytical study was carried out over a period of 3 months, from November 2020 to January 2021, at the University Hospital Center Professor Zafisaona Gabriel Mahajanga. Samples intended for the determination of plasma potassium, of which the pre-analytical phase could be followed from the blood sampling to their analysis were included. One hundred and twenty nine samples were tracked. Hyperkalemia was observed in 51 cases, or 39.5%. The frequency of pseudohyperkalemia was 27.5% (n = 14). Pseudohyperkalemia predominated on samples from hospitalized patients, where the pediatric department was first (50%, n = 7), followed by the Emergency and Intensive Care Department (42.9%, n = 6). It was more frequent on samples taken by paramedical trainees (78.6%, n = 11). Pseudohyperkalemia associated with tourniquet placement for more than one minute was 42.9% (n = 6). The age of 0 to 15 years and over 60 years, the presence of edema, renal and / or cardiac signs, the use of hyperkalemic drugs, and hospitalization were significantly linked to the occurrence of hyperkalemia (p<0.05). Pseudohyperkalemia must be differentiated from true hyperkalemia. Hyperkalemia should always be confirmed before aggressive treatment.","PeriodicalId":431989,"journal":{"name":"International Journal of Frontline Research in Chemistry and Pharmacy","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126917264","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