Open Journal of Bacteriology最新文献

Carrot slice test: A reliable method for evaluating the tumorigenicity of Pseudomonas savastanoi pv. nerii 胡萝卜切片试验：评估沙瓦氏假单胞菌（Pseudomonas savastanoi pv. nerii）致瘤性的可靠方法

Open Journal of Bacteriology Pub Date : 2024-01-09 DOI: 10.17352/ojb.000026

Fodor Attila, Juhasz Áron, Vitári Viktória, Anita Karacs-Végh

引用次数: 0

Extraction of silica from natural deposits for the production of silicon in photovoltaic applications 从天然矿藏中提取硅，用于生产光伏应用中的硅

Open Journal of Bacteriology Pub Date : 2023-12-12 DOI: 10.17352/ojb.000024

Zeboudj Asmaa, Hamzaoui Saad

{"title":"Extraction of silica from natural deposits for the production of silicon in photovoltaic applications","authors":"Zeboudj Asmaa, Hamzaoui Saad","doi":"10.17352/ojb.000024","DOIUrl":"https://doi.org/10.17352/ojb.000024","url":null,"abstract":"The Silica, primarily sourced from silicon dioxide (SiO2) is a common chemical compound abundant in nature, existing in various forms such as quartz, sand, glass, and diverse minerals. It finds extensive use across multiple industries, contributing significantly to glassmaking, ceramics, abrasives, refractory materials, and serving as a crucial component in semiconductor production for electronic chips. This work provides a comprehensive review of the silica elaboration process aimed at obtaining silicon. The initial stage involves the preparation of raw materials, utilizing Algerian sand and diatomite, which undergo meticulous chemical treatment to eliminate unwanted impurities. This method comprises distinct steps, known as the purification process, wherein the sand or diatomite shell is assessed through dissolution in a caustic alkaline solution. This approach indicates the potential to generate high-quality silica from diatomite using an aqueous chemical process. This paper explores the prospect of sand or diatomaceous earth as a novel source of premium-grade silica. It discusses the effects of hydrochloric acid as a solvent for purification. This study contrasts treatment methods before and after acid leaching, focusing on samples with larger particle sizes (ranging from 53 to 300 microns), shorter refining durations (1 to 6 hours), and relatively higher temperatures (30 °C to 70 °C). The findings reveal that the highest purity of silica was attained through HCl treatment (25%).","PeriodicalId":378260,"journal":{"name":"Open Journal of Bacteriology","volume":"84 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139008030","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

Systematic review–how do we identify urinary tract infections today?

Open Journal of Bacteriology Pub Date : 2023-05-20 DOI: 10.17352/ojb.000023

Čeprnja Marina, Oros Damir, Janeš Andrea, Žučko Jurica, Barišić Karmela, Škrlin Jasenka, Starčević Antonio

{"title":"Systematic review–how do we identify urinary tract infections today?","authors":"Čeprnja Marina, Oros Damir, Janeš Andrea, Žučko Jurica, Barišić Karmela, Škrlin Jasenka, Starčević Antonio","doi":"10.17352/ojb.000023","DOIUrl":"https://doi.org/10.17352/ojb.000023","url":null,"abstract":"Standard urine culture is still considered a gold standard in the identification of Urinary Tract Infections (UTIs), but is time-consuming and in approximately 20% of patients with UTI symptoms produces false-negative results. Medical and scientific communities are in search of a faster, more accurate, yet affordable method with high clinical utility. As a supplement to standard culture in routine practice Urine Flow Cytometer (UFC) screening method is used, in order to detect negative urine culture samples. This allows for shortening issuing time for sterile urine culture reports and the cost of the analysis itself. In addition, urine dipstick tests and microscopic examinations of urine sediment can also be performed in biochemical laboratories but are usually preceded by urine culture. Nowadays, advanced methods such as proteomics and genomics are used to identify pathogens causing UTIs but are still used mainly for scientific purposes and rarely in clinical practice. From genomic methods PCR, 16S rRNA gene sequencing, and metagenome sequencing are being researched. PCR is great for targeted diagnostics, 16S RNA gene amplification can determine bacterial genera and their abundance, but is not good for in-depth species analysis, while metagenomics is the most comprehensive and unbiased method. The proteomics field also offers several methods for microbial identification, with MS as the leading one. Clinical applications of MS platforms usually imply MALDI-TOF MS analyzers which produce a characteristic spectrum called peptide mass fingerprint or more present for scientific purposes LC-MS/MS-based peptide sequencing.","PeriodicalId":378260,"journal":{"name":"Open Journal of Bacteriology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130653887","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

Antimicrobial resistance: The next probable pandemic 抗菌素耐药性:下一个可能的大流行

Open Journal of Bacteriology Pub Date : 2022-12-31 DOI: 10.17352/ojb.000022

U. Krishnapriya

引用次数: 0

Detection rate of pulmonary tuberculosis by direct and concentrated microscopy techniques with Lowenstein-Jensen Culture as standard: South-South Nigeria Scenario 以洛温斯坦-詹森培养为标准的直接和浓缩显微镜技术肺结核的检出率:南南尼日利亚方案

Open Journal of Bacteriology Pub Date : 2022-12-28 DOI: 10.17352/ojb.000021

Edem Ekom Ndifreke, Umo Anthony Nathaniel, Akinjogunla Olajide Joseph, Elahmar Adel AE, Arome David

{"title":"Detection rate of pulmonary tuberculosis by direct and concentrated microscopy techniques with Lowenstein-Jensen Culture as standard: South-South Nigeria Scenario","authors":"Edem Ekom Ndifreke, Umo Anthony Nathaniel, Akinjogunla Olajide Joseph, Elahmar Adel AE, Arome David","doi":"10.17352/ojb.000021","DOIUrl":"https://doi.org/10.17352/ojb.000021","url":null,"abstract":"Objective: This study seeks to identify a more sensitive smear microscopy method for the detection of Mycobacterium tuberculosis in low-resource centers. Materials and methods: One hundred and forty sputum specimens were collected and direct smears were prepared as the specimen was submitted. The specimens were afterward digested/decontaminated using the modified Petroff’s method. Both smear methods were stained by the Ziehl-Neelsen technique and examined. All specimens (direct and concentrated) were cultured on a Lowenstein-Jensen medium and results were considered the gold standard to calculate sensitivity. Results: Out of 140 specimens, 27 (19%) and 34 (24%) were positive by direct and concentrated methods respectively. The number of culture positives by the direct and concentrated method was 26 (19%) and 31(22%) respectively. The sensitivity of direct and concentrated methods was 92.3% and 100% respectively. The negative culture and contamination rate was minimum with the concentrated method. The diagnostic accuracy of direct and concentrated methods was 88.6% and 97.1%. Conclusion: In summary, results showed concentrated techniques were able to detect more true positive Mycobacterium tuberculosis than the direct smear method. Therefore, the study region with AFB smear microscopy can utilize the concentrated smear method for AFB smear microscopy to improve the case-finding strategy.","PeriodicalId":378260,"journal":{"name":"Open Journal of Bacteriology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121126729","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

Hericium erinaceus powder inhibits the growth of Porphyromonas gingivalis 猴头菌粉抑制牙龈卟啉单胞菌生长

Open Journal of Bacteriology Pub Date : 2021-07-17 DOI: 10.17352/ojb.000020

I. Hirono, Kawai Junya, Mori Koichiro

引用次数: 0

Purulent pleurisy in children 儿童化脓性胸膜炎

Open Journal of Bacteriology Pub Date : 2020-10-01 DOI: 10.17352/ojb.000016

Mouad Fatima Zahra, S. Elmoussaoui, K. Elfakiri, N. Rada, G. Draiss, N. Soraa, M. Bouskraoui

引用次数: 0

Open Journal of Bacteriology 细菌学开放杂志

Open Journal of Bacteriology Pub Date : 2019-08-13 DOI: 10.17352/OJB.000010

A. Tiburcio, H. Ruiz, P. Reyes-López