The discovery that human papillomavirus (HPV) infection is the primary cause of cervical cancer has opened up new avenues for prevention. Carrageenans are attractive candidates for developing potential HPV prevention due to their actions against a wide range of viruses, mainly through the blocking of the viral attachment stage. In addition, they are characterised by low production costs, abundant availability, biodegradability, biocompatibility, and non-toxicity. This review presents an overview of in vitro and in vivo studies of carrageenan antiviral properties, availability, and future liquid-sexual material. Based on the results of previous studies, both in vitro and in vivo carrageenan has the potential to be applied as a lubricant and feminine cleanser because it can reduce HPV infection, is non-toxic, and non-allergenic.
{"title":"Carrageenan: Future Potential Ingredient of Lubricant and Feminine Hygiene Product with Possible Protection Effects against HPV Infection","authors":"J. Jumardi, R. Arfah, N. U. Permatasari","doi":"10.15255/kui.2022.032","DOIUrl":"https://doi.org/10.15255/kui.2022.032","url":null,"abstract":"The discovery that human papillomavirus (HPV) infection is the primary cause of cervical cancer has opened up new avenues for prevention. Carrageenans are attractive candidates for developing potential HPV prevention due to their actions against a wide range of viruses, mainly through the blocking of the viral attachment stage. In addition, they are characterised by low production costs, abundant availability, biodegradability, biocompatibility, and non-toxicity. This review presents an overview of in vitro and in vivo studies of carrageenan antiviral properties, availability, and future liquid-sexual material. Based on the results of previous studies, both in vitro and in vivo carrageenan has the potential to be applied as a lubricant and feminine cleanser because it can reduce HPV infection, is non-toxic, and non-allergenic.","PeriodicalId":43849,"journal":{"name":"Kemija u Industriji-Journal of Chemists and Chemical Engineers","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46498642","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}
One of the possible options for carbon footprint reduction in ammonia production is energy intensification of the natural gas reformer furnace. This paper addresses how process modelling and simulation concepts can be combined with proven meth-ods such as minimum energy consumption analysis and heat exchanger networks to identify and optimise the main bottlenecks in natural gas reformer furnaces. The main outcome is finding the best possible reconstruction options for natural gas savings and related CO 2 reduction. The applied method delivered an overall reduction of natural gas of 834 m 3 h −1 or 0.51 GJ with accompanying carbon footprint reduction of 0.026 t CO 2 per ton of NH 3 produced. A large part of EU’s ammonia producers will be able to reach net zero emissions by 2050 by following the policy initiatives of the “Green Deal” thanks to this case study. In addition, it provides the basis for the further execution of other possible non-conventional retrofit measures.
减少氨生产中碳足迹的可能选择之一是天然气重整炉的能源强化。本文介绍了如何将过程建模和模拟概念与已证实的方法相结合，如最小能耗分析和换热器网络，以识别和优化天然气转化炉的主要瓶颈。主要结果是找到了节省天然气和减少相关二氧化碳的最佳重建方案。所应用的方法使天然气的总减少量为834 m 3 h−1或0.51 GJ，同时每生产一吨NH3，碳足迹减少0.026 t CO2。得益于这一案例研究，通过遵循“绿色协议”的政策举措，到2050年，欧盟大部分氨生产商将能够实现净零排放。此外，它还为进一步执行其他可能的非常规改造措施提供了基础。
{"title":"Transition towards Carbon Footprint Reduction and Energy Intensification in Natural Gas Reforming","authors":"N. Zečević, O. Brasseur","doi":"10.15255/kui.2022.037","DOIUrl":"https://doi.org/10.15255/kui.2022.037","url":null,"abstract":"One of the possible options for carbon footprint reduction in ammonia production is energy intensification of the natural gas reformer furnace. This paper addresses how process modelling and simulation concepts can be combined with proven meth-ods such as minimum energy consumption analysis and heat exchanger networks to identify and optimise the main bottlenecks in natural gas reformer furnaces. The main outcome is finding the best possible reconstruction options for natural gas savings and related CO 2 reduction. The applied method delivered an overall reduction of natural gas of 834 m 3 h −1 or 0.51 GJ with accompanying carbon footprint reduction of 0.026 t CO 2 per ton of NH 3 produced. A large part of EU’s ammonia producers will be able to reach net zero emissions by 2050 by following the policy initiatives of the “Green Deal” thanks to this case study. In addition, it provides the basis for the further execution of other possible non-conventional retrofit measures.","PeriodicalId":43849,"journal":{"name":"Kemija u Industriji-Journal of Chemists and Chemical Engineers","volume":"129 ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41278613","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}
Amina Lachenani, M. Bentchikou, Mouloud Boumahdi, S. Hanini, M. Laidi
In this paper, six novel mathematical models based on semi-empirical calculus are proposed and applied to characterise the oven-drying process of cement mortar composites reinforced with cellulosic fibres (CMCRCFs). The drying experiments were carried out on four levels of oven-drying temperatures (70, 85, 105, and 120 ° C), with four different cellulosic fibres content (0, 5, 10, and 20 %). Obtained results were compared to those derived by regression analysis of six most typically used math ematical drying models (Newton, Page, Page modified1, Page modified2, Handerson Pabis, and Logarithmic) in addition to six proposed models. The regression accuracy of the drying process was evaluated by the coefficient of determination ( R 2 ), low mean square error (MSE), low root mean squared error (RMSE), and mean absolute error (MAE). Additional criteria were used to ensure more validity of the selected models. The obtained values indicate a highly accurate fit of the proposed model MR9, meaning that the proposed model can clearly interpret the experimental drying data and predict the dry state of CMCRCFs.
{"title":"Drying Process of Cement Mortar Composites Reinforced with Cellulosic Fibres: Experiment and Mathematical Modelling","authors":"Amina Lachenani, M. Bentchikou, Mouloud Boumahdi, S. Hanini, M. Laidi","doi":"10.15255/kui.2022.010","DOIUrl":"https://doi.org/10.15255/kui.2022.010","url":null,"abstract":"In this paper, six novel mathematical models based on semi-empirical calculus are proposed and applied to characterise the oven-drying process of cement mortar composites reinforced with cellulosic fibres (CMCRCFs). The drying experiments were carried out on four levels of oven-drying temperatures (70, 85, 105, and 120 ° C), with four different cellulosic fibres content (0, 5, 10, and 20 %). Obtained results were compared to those derived by regression analysis of six most typically used math ematical drying models (Newton, Page, Page modified1, Page modified2, Handerson Pabis, and Logarithmic) in addition to six proposed models. The regression accuracy of the drying process was evaluated by the coefficient of determination ( R 2 ), low mean square error (MSE), low root mean squared error (RMSE), and mean absolute error (MAE). Additional criteria were used to ensure more validity of the selected models. The obtained values indicate a highly accurate fit of the proposed model MR9, meaning that the proposed model can clearly interpret the experimental drying data and predict the dry state of CMCRCFs.","PeriodicalId":43849,"journal":{"name":"Kemija u Industriji-Journal of Chemists and Chemical Engineers","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48386381","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}
Luka Dornjak, Karla Ostojić, Teodoro Klaser, Inga Urlić, Anamarija Rogina
Chitosan scaffolds are an effective biologically active material with versatile application in chemistry and medicine. Chitosan is a linear polysaccharide, a derivative of chitin, with great biocompatibility due to the possession of functional groups such as −OH and −NH 2 , which allow for biodegradability and antibacterial function. Chitosan has a polycation nature allowing complex formation with metal ions and many biomolecules such as DNA, proteins and lipids, while its specific structure and functional groups are responsible for antibacterial, hemostatic, and analgesic properties. To improve its angiogenic and antimi- crobial potential, chitosan can be modified by boron (borate ions). The aim of this work was to prepare boric acid modified chitosan scaffolds, using boric acid as a boron precursor, as potential bioactive scaffolds for tissue regeneration. Borate ions tend to form complexes with hydroxyl groups, however, such physical interactions between boron and chitosan functional groups result in poor encapsulation efficiency. To ensure higher boron incorporation, chitosan scaffolds were cross-linked by genipin, a cross linker with lower cytotoxicity in contrast to glutaraldehyde commonly used to prepare stable chitosan-based materials. The degree of deacetylation ( DD ) and concentration of chitosan solution as well as the concentration of a solvent are impor tant parameters that affect the crosslinking process. Moreover, the addition of boric acid could interfere with the crosslinking process by occupying chitosan functional groups. Here, chitosan scaffolds were modified with different concentrations of boric acid, while the concentrations of chitosan solution (1.2 w/v), genipin (2 % w/w), and acetic acid (0.5 % v/v) were kept constant. Obtained scaffolds were characterised by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), differential scanning calorimetry (DSC), Fourier transformation infrared spectroscopy (FTIR), while cytotoxicity was evaluated as a function of materials concentration and exposure time. The results indicated successful incorporation of boron into crosslinked chitosan scaffolds with highly porous structure and low cytotoxicity.
{"title":"Boric Acid Modified Chitosan Scaffolds Chemically Crosslinked by Genipin","authors":"Luka Dornjak, Karla Ostojić, Teodoro Klaser, Inga Urlić, Anamarija Rogina","doi":"10.15255/kui.2022.018","DOIUrl":"https://doi.org/10.15255/kui.2022.018","url":null,"abstract":"Chitosan scaffolds are an effective biologically active material with versatile application in chemistry and medicine. Chitosan is a linear polysaccharide, a derivative of chitin, with great biocompatibility due to the possession of functional groups such as −OH and −NH 2 , which allow for biodegradability and antibacterial function. Chitosan has a polycation nature allowing complex formation with metal ions and many biomolecules such as DNA, proteins and lipids, while its specific structure and functional groups are responsible for antibacterial, hemostatic, and analgesic properties. To improve its angiogenic and antimi- crobial potential, chitosan can be modified by boron (borate ions). The aim of this work was to prepare boric acid modified chitosan scaffolds, using boric acid as a boron precursor, as potential bioactive scaffolds for tissue regeneration. Borate ions tend to form complexes with hydroxyl groups, however, such physical interactions between boron and chitosan functional groups result in poor encapsulation efficiency. To ensure higher boron incorporation, chitosan scaffolds were cross-linked by genipin, a cross linker with lower cytotoxicity in contrast to glutaraldehyde commonly used to prepare stable chitosan-based materials. The degree of deacetylation ( DD ) and concentration of chitosan solution as well as the concentration of a solvent are impor tant parameters that affect the crosslinking process. Moreover, the addition of boric acid could interfere with the crosslinking process by occupying chitosan functional groups. Here, chitosan scaffolds were modified with different concentrations of boric acid, while the concentrations of chitosan solution (1.2 w/v), genipin (2 % w/w), and acetic acid (0.5 % v/v) were kept constant. Obtained scaffolds were characterised by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), differential scanning calorimetry (DSC), Fourier transformation infrared spectroscopy (FTIR), while cytotoxicity was evaluated as a function of materials concentration and exposure time. The results indicated successful incorporation of boron into crosslinked chitosan scaffolds with highly porous structure and low cytotoxicity.","PeriodicalId":43849,"journal":{"name":"Kemija u Industriji-Journal of Chemists and Chemical Engineers","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45794730","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}
Perovskites are investigated as potential working materials in new technologies, such as solid ox - ide fuel cells, thermochemical energy storage, and magnetic refrigerators. They are interesting due to their application properties, such as electrical conductivity, ferromagnetic properties, and reducibility. Properties of perovskites can be improved by doping and the formation of structural defects. The aim of this work was to investigate the possibility of preparing Sr-doped lanthanum manganite with the chemical formula La 0.5 Sr 0.5 MnO 3 by coprecipitation procedure, and to analyse the observed phase separation. The material was prepared by procedure in which sources of metal cations (La 3+ , 2+ phase, especially when in tablet form.
钙钛矿在固体氧化物燃料电池、热化学储能和磁性冰箱等新技术中具有潜在的应用前景。由于它们的应用特性，如导电性、铁磁性和可还原性，它们很有趣。通过掺杂和结构缺陷的形成可以改善钙钛矿的性能。本文的目的是研究用共沉淀法以La 0.5 Sr 0.5 mno3的化学式制备Sr掺杂锰酸镧的可能性，并分析所观察到的相分离情况。该材料的制备过程中，金属阳离子(la3 +， 2+相)的来源，特别是片剂形式。
{"title":"Razdvajanje faza u sustavu La0.5Sr0.5MnO3","authors":"Andreja Žužić, J. Macan","doi":"10.15255/kui.2022.016","DOIUrl":"https://doi.org/10.15255/kui.2022.016","url":null,"abstract":"Perovskites are investigated as potential working materials in new technologies, such as solid ox - ide fuel cells, thermochemical energy storage, and magnetic refrigerators. They are interesting due to their application properties, such as electrical conductivity, ferromagnetic properties, and reducibility. Properties of perovskites can be improved by doping and the formation of structural defects. The aim of this work was to investigate the possibility of preparing Sr-doped lanthanum manganite with the chemical formula La 0.5 Sr 0.5 MnO 3 by coprecipitation procedure, and to analyse the observed phase separation. The material was prepared by procedure in which sources of metal cations (La 3+ , 2+ phase, especially when in tablet form.","PeriodicalId":43849,"journal":{"name":"Kemija u Industriji-Journal of Chemists and Chemical Engineers","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43946128","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}
Josipa Papac Zjačić, Silvia Morović, K. Košutić, D. Ašperger
The presence of pharmaceuticals in the aquatic environment is problematic in many aspects, mainly due to their specific mode of action, and physical and chemical properties that make them highly resistant to degradation. This new group of contaminants is frequently detected in conventional wastewater treatment plants. Removal of pharmaceuticals from water by primary and secondary methods (filtration, sedimentation, biological treatment) is not satisfactory, therefore advanced methods involving membrane and advanced oxidation processes are increasingly being de -veloped. The most significant advantage of membrane technologies is their wide industrial applicability while maintaining the highest water standards. Advanced oxidation processes can effectively decompose complex pollutants into simpler ones, and mineralize organic pollutants in wastewater without generating secondary waste. In order to improve their advantages, but also to eliminate disadvantages, these technologies are increasingly complemented and combined, resulting in higher efficiency in removing pharmaceuticals from water and reducing their toxicity.
{"title":"Combined Application of Membrane and Advanced Oxidation Processes for Removal of Pharmaceuticals from Water","authors":"Josipa Papac Zjačić, Silvia Morović, K. Košutić, D. Ašperger","doi":"10.15255/kui.2022.008","DOIUrl":"https://doi.org/10.15255/kui.2022.008","url":null,"abstract":"The presence of pharmaceuticals in the aquatic environment is problematic in many aspects, mainly due to their specific mode of action, and physical and chemical properties that make them highly resistant to degradation. This new group of contaminants is frequently detected in conventional wastewater treatment plants. Removal of pharmaceuticals from water by primary and secondary methods (filtration, sedimentation, biological treatment) is not satisfactory, therefore advanced methods involving membrane and advanced oxidation processes are increasingly being de -veloped. The most significant advantage of membrane technologies is their wide industrial applicability while maintaining the highest water standards. Advanced oxidation processes can effectively decompose complex pollutants into simpler ones, and mineralize organic pollutants in wastewater without generating secondary waste. In order to improve their advantages, but also to eliminate disadvantages, these technologies are increasingly complemented and combined, resulting in higher efficiency in removing pharmaceuticals from water and reducing their toxicity.","PeriodicalId":43849,"journal":{"name":"Kemija u Industriji-Journal of Chemists and Chemical Engineers","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41494741","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}
Marija Banožić, Silvija Šafranko, Dora Bogadi, K. Aladić, S. Jokić
{"title":"Poboljšana ekstrakcija fenolnih spojeva iz kore mandarine primjenom visokonaponskog električnog pražnjenja: Utjecaj procesnih parametara i optimizacija","authors":"Marija Banožić, Silvija Šafranko, Dora Bogadi, K. Aladić, S. Jokić","doi":"10.15255/kui.2022.023","DOIUrl":"https://doi.org/10.15255/kui.2022.023","url":null,"abstract":"","PeriodicalId":43849,"journal":{"name":"Kemija u Industriji-Journal of Chemists and Chemical Engineers","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42543216","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}
Rea Janda, Nataša Mikulec, Damir Andabaka, Ksenija Vitale
Living and working environments are most often closed spaces where it is necessary to provide health protection for family members and employees. Some activities require special protection, especially during a pandemic. The living and working environments can be kept clean and tidy in three ways: by cleaning, disinfecting, and sanitising. This paper presents a review of the literature linking disinfectants, their use, and resistance of microorganisms to disinfectants. In addition, it gives an overview of critical points that have arisen in various testing laboratories in the Republic of Croatia, related to the COVID-19 pandemic, and as a consequence of the lack of guidelines in norms. The literature search was conducted based on the keyword 'disinfection' in PubMed, Science Direct, Web of Science, Scopus and Google Scholar databases, and on the CDC and HZJZ websites due to the latest recommendations regarding COVID-19 infections. Results have shown that a norm is a basic document that needs a specific upgrade depending on the type of laboratory and its activities, and it should not be an independent decision of each individual laboratory. Based on the identified needs and problems, state institutions should provide detailed instructions depending on the laboratory activity. Therefore, this situation and the experience gained should be used as a starting point for document development that could be applicable in crisis states generally. In addition, it could be used as a basis for education and training in crisis states.
生活和工作环境通常是封闭空间，因此有必要为家庭成员和雇员提供健康保护。有些活动需要特别保护，特别是在大流行期间。生活和工作环境可以通过三种方式保持干净整洁:清洁、消毒和消毒。本文综述了有关消毒剂、消毒剂的使用和微生物对消毒剂的耐药性的文献。此外，报告还概述了克罗地亚共和国各检测实验室因COVID-19大流行以及规范中缺乏指导方针而出现的关键点。根据最新的COVID-19感染建议，在PubMed、Science Direct、Web of Science、Scopus和谷歌Scholar数据库以及CDC和HZJZ网站上以“消毒”为关键词进行文献检索。结果表明，规范是一项基本文件，需要根据实验室的类型及其活动进行具体的升级，而不应由每个实验室独立决定。根据确定的需求和问题，国家机构应根据实验室活动提供详细的说明。因此，这种情况和所获得的经验应该作为文件开发的起点，可以普遍适用于危机状态。此外，它还可以作为危机国家教育和培训的基础。
{"title":"Mjere dezinfekcije i sanitacije u akreditiranom ispitnom laboratoriju – osvrt na COVID-19 infekciju","authors":"Rea Janda, Nataša Mikulec, Damir Andabaka, Ksenija Vitale","doi":"10.15255/kui.2022.015","DOIUrl":"https://doi.org/10.15255/kui.2022.015","url":null,"abstract":"Living and working environments are most often closed spaces where it is necessary to provide health protection for family members and employees. Some activities require special protection, especially during a pandemic. The living and working environments can be kept clean and tidy in three ways: by cleaning, disinfecting, and sanitising. This paper presents a review of the literature linking disinfectants, their use, and resistance of microorganisms to disinfectants. In addition, it gives an overview of critical points that have arisen in various testing laboratories in the Republic of Croatia, related to the COVID-19 pandemic, and as a consequence of the lack of guidelines in norms. The literature search was conducted based on the keyword 'disinfection' in PubMed, Science Direct, Web of Science, Scopus and Google Scholar databases, and on the CDC and HZJZ websites due to the latest recommendations regarding COVID-19 infections. Results have shown that a norm is a basic document that needs a specific upgrade depending on the type of laboratory and its activities, and it should not be an independent decision of each individual laboratory. Based on the identified needs and problems, state institutions should provide detailed instructions depending on the laboratory activity. Therefore, this situation and the experience gained should be used as a starting point for document development that could be applicable in crisis states generally. In addition, it could be used as a basis for education and training in crisis states.","PeriodicalId":43849,"journal":{"name":"Kemija u Industriji-Journal of Chemists and Chemical Engineers","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43322462","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}
Anita Štrkalj, Luka Mesek, Vesna Ocelić Bulatović, Zoran Glavaš
adsorption isotherm models. It was found that the Langmuir model is more appropriate, and that adsorption takes place as chemisorption.
吸附等温线模型。发现Langmuir模型更为合适，吸附以化学吸附的方式进行。
{"title":"Adsorpcija Zn(II) iona na metalurškom otpadu","authors":"Anita Štrkalj, Luka Mesek, Vesna Ocelić Bulatović, Zoran Glavaš","doi":"10.15255/kui.2022.013","DOIUrl":"https://doi.org/10.15255/kui.2022.013","url":null,"abstract":"adsorption isotherm models. It was found that the Langmuir model is more appropriate, and that adsorption takes place as chemisorption.","PeriodicalId":43849,"journal":{"name":"Kemija u Industriji-Journal of Chemists and Chemical Engineers","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45507981","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}
Skupina protuupalnih lijekova pod nazivom 5-aminosalicilati upotrebljava se u ranoj fazi liječenja upalnih bolesti crijeva s ciljem postizanja remisije i sprječavanja relapsa bolesti.1 U skupinu 5-aminosalicilata spadaju protuupalni lijek mesalazin, odnosno 5-aminosalicilna kiselina te njezina tri prolijeka; sulfasalazin, balsalazid i olsalazin (slika 1). Terapijski učinak “prvog” 5-aminosalicilata, sulfasalazina, otkriven je početkom 19. stoljeća, a tek se naknadnim studijama utvrdilo da mesalazin, sastavnica njegove strukture djeluje protuupalno.2,3 Sulfasalazin se uspješno upotrebljava u liječenju upalnih bolesti crijeva još i danas, međutim poznato je da sulfapiridin, antibiotik vezan za mesalazin azo vezom, uzrokuje nuspojave kod gotovo trećine paciIspitivanje fizikalno-kemijske kompatibilnosti lijekova primjenom analitičkih tehnika: pregled istraživanja razvoja fiksne kombinacije 5-aminosalicilata i folne kiseline https://doi.org/10.15255/KUI.2022.014 KUI-63/2022 Pregled Prispjelo 22. veljače 2022. Prihvaćeno 6. travnja 2022.
{"title":"Ispitivanje fizikalno-kemijske kompatibilnosti lijekova primjenom analitičkih tehnika: pregled istraživanja razvoja fiksne kombinacije 5-aminosalicilata i folne kiseline","authors":"M. Jeličić","doi":"10.15255/kui.2022.014","DOIUrl":"https://doi.org/10.15255/kui.2022.014","url":null,"abstract":"Skupina protuupalnih lijekova pod nazivom 5-aminosalicilati upotrebljava se u ranoj fazi liječenja upalnih bolesti crijeva s ciljem postizanja remisije i sprječavanja relapsa bolesti.1 U skupinu 5-aminosalicilata spadaju protuupalni lijek mesalazin, odnosno 5-aminosalicilna kiselina te njezina tri prolijeka; sulfasalazin, balsalazid i olsalazin (slika 1). Terapijski učinak “prvog” 5-aminosalicilata, sulfasalazina, otkriven je početkom 19. stoljeća, a tek se naknadnim studijama utvrdilo da mesalazin, sastavnica njegove strukture djeluje protuupalno.2,3 Sulfasalazin se uspješno upotrebljava u liječenju upalnih bolesti crijeva još i danas, međutim poznato je da sulfapiridin, antibiotik vezan za mesalazin azo vezom, uzrokuje nuspojave kod gotovo trećine paciIspitivanje fizikalno-kemijske kompatibilnosti lijekova primjenom analitičkih tehnika: pregled istraživanja razvoja fiksne kombinacije 5-aminosalicilata i folne kiseline https://doi.org/10.15255/KUI.2022.014 KUI-63/2022 Pregled Prispjelo 22. veljače 2022. Prihvaćeno 6. travnja 2022.","PeriodicalId":43849,"journal":{"name":"Kemija u Industriji-Journal of Chemists and Chemical Engineers","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42252226","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}
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