Digital Commons Network^™

Determination Of Colony Characteristics And Suitability For Mass Production Of Native Bombus Terrestris L. Population In The Central Black Sea Coast Region, Sali̇m Aktürk, Ayhan Gösteri̇t, Gökhan Akdeni̇z, Samet Okuyan, Ahmet Emi̇r Şahi̇n

Turkish Journal of Veterinary & Animal Sciences

In this study, two successive generations of queens belonging to a native Bombus terrestris population in the Central Black Sea Region of Türkiye were reared under controlled laboratory conditions to examine its developmental characteristics and suitability for mass production. The first generation was formed by a hundred Bombus terrestris queens which were caught from native fauna in Ordu Province, Türkiye. Young queens and males produced at the end of the life cycle in different colonies of first generation were mated in laboratory conditions. Mated queens were placed in a refrigerated incubator for their two months diapause period. After the diapause …

Predictors Of Lymphovascular Invasion In Estrogen Receptor Positive/Her-2 Negative Breast Cancer Patients Treated With Neoadjuvant Chemotherapy, Eyyüp Çavdar, Yakup İri̇ağaç

Turkish Journal of Medical Sciences

Background/aim: Lymphovascular invasion (LVI) is considered a high-risk factor for recurrence in early-stage breast cancer, hence examination of LVI in pathological samples is an absolute recommendation. We aim to investigate predictive factors of LVI in preneoadjuvant chemotherapy (NAC) patients with estrogen receptor positive (ER+) and human epidermal growth factor receptor 2 negative (HER2-) molecular subtypes of breast cancer. Materials and methods: One hundred and thirty-four patients treated with NAC were included in this study who were ER+/HER2-. The clinical characteristics of the patients, the data obtained from the core needle biopsy before NAC and the LVI status in the pathology …

Correlations Between Glycosylated Hemoglobin And Glucose Levels In Chinese Older Adults With Newly Diagnosed Type 2 Diabetes Mellitus, Yun Yu, Jun Yang, Wei Tang

Turkish Journal of Medical Sciences

Background/aim: To explore the correlations between glycosylated hemoglobin (HbA1c) and glucose levels in older adults with newly diagnosed type 2 diabetes mellitus (T2DM). Materials and methods: A total of 783 participants aged ≥60 years were enrolled. The 75-g oral glucose tolerance test (OGTT) was conducted and HbA1c was measured. The participants were divided into normal glucose tolerance (NGT)HbA1c, Pre-DMHbA1c, and T2DMHbA1c groups based on the HbA1c diagnostic criteria. The correlations between HbA1c and glucose levels of the OGTT were analyzed. Results: When HbA1c ≥ 6.5% in older people, HbA1c was positively correlated with Glucose 0 min and 120 min of …

Evaluation Of Toxic Effects Of Dapagliflozin On Reproductive System In Diabetic Rats, Bahar Karaca, Tuğçe Boran, Ayça Karagöz Köroğlu, Feri̇ha Ercan, Gül Özhan

Turkish Journal of Medical Sciences

Background/aim: Dapagliflozin (DAPA), sodium-glucose cotransporter 2 (SGLT2) inhibitor, is an insulin-independent antidiabetic drug used to control hyperglycaemia by promoting glucose excretion from the kidney. Its adverse effects include orthostatic hypotension, dehydration and urinary tract and genital infections caused by glycosuria. DAPA is subjected to constant additional monitoring, as drugrelated adverse reactions are frequently updated in line with the results of case studies, clinical trials and in vivo studies. Some antidiabetic drugs have shown potential harmful effects on the male reproductive system; however, the effects of DAPA have not been sufficiently studied in this capacity. Aiming to fill this gap in …

Complementary Medicines Used In Ulcerative Colitis And Unintended Interactions With Cytochrome P450-Dependent Drug-Metabolizing Enzymes, Alaatti̇n Şen

Turkish Journal of Medical Sciences

Ulcerative colitis (UC) is an idiopathic, chronic inflammatory disease with multiple genetic and a variety of environmental risk factors. Although current drugs significantly aid in controlling the disease, many people have led to the application of complementary therapies due to the common belief that they are natural and safe, as well as due to the consideration of the side effect of current drugs. Curcumin, cannabinoids, wheatgrass, Boswellia, wormwood and Aloe vera are among the most commonly used complementary medicines in UC. However, these treatments may have adverse and toxic effects due to unintended interactions with drugs or drugmetabolizing enzymes such …

Impact Of Atp Synthase/Coupling Factor 6 In Hypoxic Pulmonary Arterial Hypertension: An Experimental Rat Model, Nannan Li, Yugen Shi, Jie Yin, Li Sun, Qingshan Zhang, Shuai Bao, Juan Zhang, Youlei Li, Miaomiao Wang, Yanwei Zhang, Mei Xue, Lei Qi, Yan Li, Suhua Yan, Xiaolu Li

Turkish Journal of Medical Sciences

Background/aim: Hypoxia-induced pulmonary arterial hypertension (PAH) is characterized by prostacyclin (PGI2 ) disorder, which manifests in the same manner as in monocrotaline (MCT)-induced PAH. Endogenous PGI2 inhibitor coupling factor 6 (CF6) is involved in MCT-induced PAH. This study aimed to explore the presence or absence of a correlation between hypoxia-induced PAH and CF6. Materials and methods: This study was conducted between January 2019 and June 2020. A total of 135 male Wistar rats (aged 8 weeks and weighing 200?250 g) were randomly divided into five groups: (A) control, (B) 1 week of hypoxia, (C) 2 weeks of hypoxia, (D) 3 …

Identification Of Sepsis-Associated Encephalopathy Risk Factors In Elderly Patients: A Retrospective Observational Cohort Study, Guangyong Jin, Shengyun Wang, Jiayi Chen, Wei Hu, Ying Zhu, Shaosong Xi

Turkish Journal of Medical Sciences

Background/aim: Sepsis-associated encephalopathy (SAE) is a severe complication of sepsis that affects upwards of half of all sepsis patients. Few studies have examined the etiology and risk factors of SAE among elderly patients. This study was designed to explore the epidemiology of SAE and the risk factors associated with its development in elderly populations. Materials and methods: This was a retrospective analysis of elderly sepsis patients admitted to our intensive care unit between January 2017 and January 2022. We then compared non-SAE and SAE groups concerning baseline clinicopathological findings, underlying diseases, infection site, disease type, disease severity, biochemical findings, and …

Using Electrooculography With Visual Stimulus Tracking Test In Diagnosing Of Adhd: Findings From Machine Learning Algorithms, Fatma Lati̇foğlu, Mustafa Yasi̇n Esas, Rami̇s İleri̇, Sevgi̇ Özmen, Esra Demi̇rci̇

Turkish Journal of Medical Sciences

Background/aim: Attention deficit hyperactivity disorder (ADHD), one of the most common neurodevelopmental disorders in childhood, is diagnosed clinically by assessing the symptoms of inattention, hyperactivity, and impulsivity. Also, there are limited objective assessment tools to support the diagnosis. Thus, in this study, a new electrooculography (EOG) based on visual stimulus tracking to support the diagnosis of ADHD was proposed. Materials and methods: Reference stimulus one-to-one tracking numbers (RSOT) and colour game detection (CGD) were applied to 53 medication-free children with ADHD and 36 healthy controls (HCs). Also, the test was applied six months after the treatment to children with ADHD. …

Outcome Of Solid And Cavitary Pulmonary Nodules In Rheumatoid Arthritis Patients? Case Series, Aysun Aksoy, Derya Kocakaya, Yasemi̇n Yalçinkaya, Emi̇ne Bozkurtlar, Sai̇t Karakurt, Semi̇ha Emel Eryüksel, Güzi̇de Nevsun İnanç

Turkish Journal of Medical Sciences

Background/aim: Rheumatoid pulmonary nodule can be detected in up to 32% of rheumatoid arthritis (RA) patients and approximately one-third of nodules may cavitate. We aimed to evaluate characteristics of patients with RA developing cavitary pulmonary nodular (CPN) lesions under disease-modifying antirheumatic drugs (DMARDs), follow-up of both cavitary and solid nodules, and their outcome with the treatment. Materials and methods: RA patients who presented with CPN lesions during follow-up were recruited retrospectively in this case series analysis. Total numbers and mean diameters of cavitary and solid nodules in each thorax computed tomography (CT) have been determined and followed up by two …

Is The Treatment Of Inflammatory Arthritis Different In Sickle Cell Disease?, Gezmi̇ş Ki̇myon, Gül İlhan

Turkish Journal of Medical Sciences

Background/aim: Musculoskeletal findings are common in sickle cell patients and may be confused with inflammatory arthritis. In addition, complications such as frequent infections may create difficulties while choosing drugs such as steroids, methotrexate, or antiTNFs. Our aim is to reveal whether the treatment is different in sickle cell patients with rheumatic diseases such as rheumatoid arthritis. Materials and methods: Patients followed by Rheumatology and Hematology divisions of Hatay Mustafa Kemal University Hospital were retrospectively screened. Excluding patients with musculoskeletal findings associated with sickle cell disease (SCD), patients with chronic or acute inflammatory arthritis were enrolled into study. Demographic data, disease …

Validation And Cross-Cultural Adaptation Of The Turkish Version Of The Revised Leeds Disability Questionnaire In Patients With Ankylosing Spondylitis, Mehmet Özkeski̇n, Fati̇h Özden, Özge Ocaker Aktan, Tuba Demi̇rci̇ Yildirim, İsmai̇l Sari

Turkish Journal of Medical Sciences

Background/aim: The revised Leeds Disability Questionnaire (RLDQ) is a unique assessment tool for patients with ankylosing spondylitis (AS); its comprehensive structure includes posture and neck flexibility parameters. The aim of the study was to determine the psychometric properties of the Turkish RLDQ in patients with AS. Materials and methods: A total of 100 AS patients were enrolled in the study. In the first evaluation, patients filled out the Dougados Functional Index (DFI) and Bath Ankylosing Spondylitis Functional Index (BASFI), Stanford Health Assessment Questionnaire (HAQ) in addition to RLDQ. Then, patients were refilled the revised RLDQ in the second assessment. Results: …

Covid-19 In Pediatric Nephrology Centers In Turkey, Emre Leventoğlu, Yeşi̇m Özdemi̇r Ati̇kel, Hülya Nalçacioğlu, İsmai̇l Dursun, Hasan Dursun, Zeynep Nagehan Yürük Yildirim, Nurdan Yildiz, Gülşah Kaya Aksoy, Mehmet Taşdemi̇r, Mehtap Çelakil, Belti̇nge Demi̇rci̇oğlu Kiliç, Şenay Zirhli Selçuk, Nur Canpolat, Evri̇m Kargin Çakici, Sare Gülfem Özlü

Turkish Journal of Medical Sciences

Background/aim: There is limited data on COVID-19 disease in children with kidney disease. We aimed to investigate the characteristics and prognosis of COVID-19 in pediatric nephrology patients in Turkey. Materials and methods: This was a national, multicenter, retrospective cohort study based on an online survey evaluating the data between 11th March 2020 and 11th March 2021 as an initial step of a detailed pediatric nephrology COVID-19 registry. Results: Two hundred and three patients (89 girls and 114 boys) were diagnosed with COVID-19. One-third of these patients (36.9%) were between 10-15 years old. Half of the patients were on kidney replacement …

Role Of Pd-1/Pd-L1-Mediated Tumour Immune Escape Mechanism And Microsatellite Instability In The Bcg Failure Of High-Grade Urothelial Carcinomas, Fadi̇me Gül Salman, Duygu Kankaya, Hi̇lal Özakinci, Yasemi̇n Şahi̇n, Eralp Kubi̇lay, Evren Süer, Serhat Hayme, Sümer Baltaci

Turkish Journal of Medical Sciences

Background/aim: Intravesical BCG treatment fails inexplicably in 30%-45% of patients for high-grade nonmuscle-invasive bladder cancer (NMIBC). We aimed to investigate the role of PD-1/PD-L1 interaction on BCG failure of high-grade NMIBC and to identify biomarkers for predicting BCG responsive cases. Materials and methods: Thirty BCG responsive and 29 nonresponsive NMIBCs were included in the study. Expressions of PDL1(SP-263), MSH2, MSH6, PMS2, and MLH1 were evaluated on pre- and post-BCG transurethral resection (TUR-B) specimens by immunohistochemistry. PD-L1(SP-263) expression was categorised as negative/low, high. DNA mismatch repair protein (MMR) expressions were classified as 'reduced' if ≤30% of nuclei stained, 'preserved' if >30% …

Causes Of Severe Infections In Patients With Systemic Sclerosis And Associated Factors, Müçteba Enes Yayla, Emi̇ne Uslu Yurteri̇, Murat Torğutalp, Di̇dem Şahi̇n Eroğlu, Serdar Sezer, Ayşe Bahar Keleşoğlu Di̇nçer, Emi̇ne Gözde Aydemi̇r Gülöksüz, Mehmet Levent Yüksel, Recep Yilmaz, Aşkin Ateş, Tahsi̇n Murat Turğay, Gülay Kinikli

Turkish Journal of Medical Sciences

Background/aim: Systemic sclerosis (SSc) is a chronic systemic disease characterized by vascular damage, autoimmunity, and fibrosis in the skin and internal organs. In this study, we tried to determine the causes of severe infection in patients with SSc and to reveal the factors associated with severe infection. Materials and methods: We retrospectively examined 214 SSc patients between January 2010 and August 2020. Forty-seven patients with at least one severe infection and 167 patients without severe infection were compared. Results: A total of 76 episodes of severe infections were detected in 47 (22%) patients. Common infections included pneumonia, infected digital ulcer, …

Ultrasonographic/Regional Muscle Measurements For Diagnosing Sarcopenia In Older Adults With And Without Dementia, Zekeri̇ya Ülger, Gözde Şengül Ayçi̇çek, Özgür Kara, Murat Kara

Turkish Journal of Medical Sciences

Background/aim: Sarcopenia and dementia are growing concerns among older adults that muscle and brain atrophy may cooccur. We aimed to compare the age-related loss of muscle mass by using ultrasound (US), and skeletal muscle mass index (SMI) by bioelectrical impedance analysis in older adults with and without dementia. Materials and methods: A total of 221 older adults aged ≥65 years were included in the study. The diagnosis of sarcopenia was established if low muscle mass according to either SMI or sonographic gastrocnemius (GC) muscle thickness was combined with low grip strength. The diagnosis of dementia was based on the National …

Increased Virus Dissemination Leads To Enhanced Lung Injury But Not Inflammation During Influenza-Associated Secondary Bacterial Infection, Amanda P Smith, Lindey C Lane, Ivan Ramirez Zuniga, David M Moquin, Peter Vogel, Amber M Smith

2020-Current year OA Pubs

Secondary bacterial infections increase influenza-related morbidity and mortality, particularly if acquired after 5-7 d from the viral onset. Synergistic host responses and direct pathogen-pathogen interactions are thought to lead to a state of hyperinflammation, but the kinetics of the lung pathology have not yet been detailed, and identifying the contribution of different mechanisms to disease is difficult because these may change over time. To address this gap, we examined host-pathogen and lung pathology dynamics following a secondary bacterial infection initiated at different time points after influenza within a murine model. We then used a mathematical approach to quantify the increased …

Post-Transplant Thrombotic Microangiopathy Due To A Pathogenic Mutation In Complement Factor I In A Patient With Membranous Nephropathy: Case Report And Review Of Literature, Maryam Saleem, Sana Shaikh, Zheng Hu, Nicola Pozzi, Anuja Java

2020-Current year OA Pubs

Thrombotic microangiopathy (TMA) is characterized by microangiopathic hemolytic anemia, thrombocytopenia and organ injury occurring due to endothelial cell damage and microthrombi formation in small vessels. TMA is primary when a genetic or acquired defect is identified, as in atypical hemolytic uremic syndrome (aHUS) or secondary when occurring in the context of another disease process such as infection, autoimmune disease, malignancy or drugs. Differentiating between a primary complement-mediated process and one triggered by secondary factors is critical to initiate timely treatment but can be challenging for clinicians, especially after a kidney transplant due to presence of multiple confounding factors. Similarly, primary …

The Chasm In Percutaneous Coronary Intervention And In-Hospital Mortality Rates Among Acute Myocardial Infarction Patients In Rural And Urban Hospitals In China: A Mediation Analysis, Miao Cai, Echu Liu, Peng Bai, Nan Zhang, Siyu Wang, Wei Li, Hualiang Lin, Xiaojun Lin

2020-Current year OA Pubs

No abstract provided.

Crispr-Cas9 Knock-In Of T513m And G41s Mutations In The Murine Β-Galactosyl-Ceramidase Gene Re-Capitulates Early-Onset And Adult-Onset Forms Of Krabbe Disease, Rima Rebiai, Emily Rue, Steve Zaldua, Duc Nguyen, Giuseppe Scesa, Martin Jastrzebski, Robert Foster, Bin Wang, Xuntian Jiang, Leon Tai, Scott T Brady, Richard Van Breemen, Maria I Givogri, Mark S Sands, Ernesto R Bongarzone

2020-Current year OA Pubs

Krabbe Disease (KD) is a lysosomal storage disorder characterized by the genetic deficiency of the lysosomal enzyme β-galactosyl-ceramidase (GALC). Deficit or a reduction in the activity of the GALC enzyme has been correlated with the progressive accumulation of the sphingolipid metabolite psychosine, which leads to local disruption in lipid raft architecture, diffuse demyelination, astrogliosis, and globoid cell formation. The

Differential Sphingosine-1-Phosphate Receptor-1 Protein Expression In The Dorsolateral Prefrontal Cortex Between Schizophrenia Type 1 And Type 2, Ganesh B Chand, Hao Jiang, J Philip Miller, C Harker Rhodes, Zhude Tu, Dean Foster Wong

2020-Current year OA Pubs

Understanding the etiology and treatment approaches in schizophrenia is challenged in part by the heterogeneity of this disorder. One encouraging progress is the growing evidence that there are subtypes of schizophrenia. Recent

Glial Dysfunction And Its Contribution To The Pathogenesis Of The Neuronal Ceroid Lipofuscinoses, Keigo Takahashi, Hemanth R Nelvagal, Jenny Lange, Jonathan D Cooper

2020-Current year OA Pubs

While significant efforts have been made in developing pre-clinical treatments for the neuronal ceroid lipofuscinoses (NCLs), many challenges still remain to bring children with NCLs a cure. Devising effective therapeutic strategies for the NCLs will require a better understanding of pathophysiology, but little is known about the mechanisms by which loss of lysosomal proteins causes such devastating neurodegeneration. Research into glial cells including astrocytes, microglia, and oligodendrocytes have revealed many of their critical functions in brain homeostasis and potential contributions to neurodegenerative diseases. Genetically modified mouse models have served as a useful platform to define the disease progression in the …

Combination Laser Interstitial Thermal Therapy Plus Stereotactic Radiotherapy Increases Time To Progression For Biopsy-Proven Recurrent Brain Metastases, Matthew M Grabowski, Alex Scott, Michael Olufawo, Albert H Kim, Eric C Leuthardt, Et Al.

2020-Current year OA Pubs

BACKGROUND: Improved survival for patients with brain metastases has been accompanied by a rise in tumor recurrence after stereotactic radiotherapy (SRT). Laser interstitial thermal therapy (LITT) has emerged as an effective treatment for SRT failures as an alternative to open resection or repeat SRT. We aimed to evaluate the efficacy of LITT followed by SRT (LITT+SRT) in recurrent brain metastases.

METHODS: A multicenter, retrospective study was performed of patients who underwent treatment for biopsy-proven brain metastasis recurrence after SRT at an academic medical center. Patients were stratified by "planned LITT+SRT" versus "LITT alone" versus "repeat SRT alone." Index lesion progression …

Fifth Graders’ Use Of Gesture And Models When Translanguaging During A Content And Language Integrated Science Class In Hong Kong, Melanie Williams

Research outputs 2014 to 2021

Translanguaging in science includes the use of semiotic repertoires complete with non-linguistic modes of meaning (e.g. gesture, tactile) that until recently have gone unnoticed in research into content language integrated learning (CLIL). Currently, there are calls for classroom research in CLIL settings that examines the semiotic processes in the spontaneous translanguaging of emergent bilinguals. In response, this study aims to expand bilingualism research by investigating the ways in which fifth-grade emergent bilinguals’ draw from their semiotic repertoires when translanguaging in content-based science lessons. Multimodal transcriptions made from video recordings of the lessons allow a cross-case analysis of the emergent bilinguals’ …

Graphene Derivatives Reinforced Metal Matrix Nanocomposite Coatings: A Review, Hamed Sadabadi, Omid Ghaderi, Amir Kordijazi, Pradeep K. Rohatgi

Journal of Metals, Materials and Minerals

Due to the extraordinary mechanical, thermal, and electrical properties of graphene, graphene oxide (GO), and reduced graphene oxide (rGO), these materials have the potential to become ideal nanofillers in the electrodeposited nanocomposite coatings. This article provides an overview of literature on the improvements of properties associated with graphene, GO, and rGO-reinforced coatings, along with the processing parameters and mechanisms that would lead to these improvements in electrodeposited metal matrix nanocomposite coatings, where those affected the microstructural, mechanical, tribological, and anti-corrosion characteristics of coatings. The challenges associated with the electroplating of nanocomposite coatings are addressed. The results of this survey indicated …

The Correlation Between Phase Formation And The Structure Of The Pellets With The Fungal Immobilization Study As A Commercial Substrate Culture/Planting Material, Rattiphorn Sumang, Rampai Kodsueb, Narathip Vitayakorn, Ruangwut Chutima

Journal of Metals, Materials and Minerals

Calcined clay pellets are popular planting material for those who love to grow plants in pots. The calcined clay pellets consist of clay (C), phosphate rock (PR), and rice husk ash (RHA). [(1-x)(50C–50PR)-xRHA], x(RHA) = 0, 0.25, 0.30, 0.35, 0.40, 0.45, 0.50, 0.55, 0.60, and 0.65 wt% were prepared by a conventional solid-state reaction method. The samples were made into a spherical shape with a diameter of 10 mm and fired at 600℃ to 1000℃. The effect of x contents on phase formation, microstructure, and chemical properties of [(1-x)(50C–50PR)-xRHA] was studied. X-ray diffraction revealed the typical assemblages with quartz, illite, …

Synthesis And Antimicrobial Studies Of Nano-Copper Doped Carbon Substrates; Activated Carbon, Reduced Graphene Oxide, And Carbon Nanofiber, Songwuit Chanthee, Jenjira Jirasangthong, Channarong Asasvatesanupap, Malee Santikunaporn

Journal of Metals, Materials and Minerals

Copper oxides (CuxO) have received considerable attention as a result of their biological activity. Nanoparticles (NPs) of CuxO attached to different substrates exhibit a wide spectrum of antimicrobial activity against bacteria and viruses, with similar properties to silver. The antimicrobial activity of CuxO-NPs doped on distinctive carbon materials was investigated for three carbon substrates: apricot stone activated carbon (AAC), reduced graphene oxide (rGO) and carbon nanofiber (CNF). The CuxO-NPs (5 wt%) doped AAC and rGO substrates were prepared by impregnation of copper nitrate followed by a thermal treatment process, while a similar weight of CuxO-NPs doped CNF was fabricated by …

Development Of Novel Anticancer Agents Targeting G Protein Coupled Receptor: Gpr120, Ajay Pal

Doctoral

The G-protein coupled receptor, GPR120, has ubiquitous expression and multifaceted roles in modulating metabolic and anti-inflammatory processes. GPR120 - also known as Free Fatty Acid Receptor 4 (FFAR4) is classified as a free fatty acid receptor of the Class A GPCR family. GPR120 has recently been implicated as a novel target for cancer management. GPR120 gene knockdown in breast cancer studies revealed a role of GPR120-induced chemoresistance in epirubicin and cisplatin-induced DNA damage in tumour cells. Higher expression and activation levels of GPR120 is also reported to promote tumour angiogenesis and cell migration in colorectal cancer. A number of agonists …

Research Progress Of Novel Zirconium Alloys With High Strength And Toughness, Na Zhang, Chaoqun Xia, Jiaqian Qin, Qiang Li, Xinyu Zhang, Riping Liu

Journal of Metals, Materials and Minerals

Atoms of zirconium (Zr) are often known as "first metals of the atomic age". Because of its low cross section for thermal neutron absorption, excellent corrosion resistance, and good mechanical and processing properties, it is extensively used in the nuclear industry. As the properties requirements of materials in chemical, medical and aerospace fields turn out to be higher, the application of Zr alloys in these non-nuclear fields has become more and more widespread due to their excellent properties. In addition to having a high melting point, Zr alloys also have a high specific strength and low thermal expansion coefficient. Therefore, …

Rice Husk Ash Utilization, Composition And Properties: A Brief Review, Vignesh Nayak Ullal, Shivaramu H. T., Aveen K. P.

Journal of Metals, Materials and Minerals

Asian countries rely massively on rice to feed and sustain its massive population. For long the staple food has provided nourishment to the masses and the classes. Rice is grown in large quantities in Asian countries. A by-product of its cultivation is its husk. The husk of the rice grain is mainly utilized as a fuel for the boilers in the rice mills. The uncontrolled burnt rice husk referred to as rice husk ash consists majorly of silica. silica is used in a wide variety of commercial and industrial applications. Use of rice husk ash in various products serves to …

Development Of Fexoy Particle Onto Bacterial Cellulose Network By Forced Hydrolysis And Its Electrical Conductivity, Prompong Khamwongsa, Poramed Wongjom, Andi Magattang Gafur Muchlisc, Chun Che Lin, Seranee Srisuk, Sarute Ummartyotin

Journal of Metals, Materials and Minerals

FexOy particle and bacterial cellulose composite sheet was successfully prepared by forced hydrolysis. The presence of Fe3+ ions in bacterial cellulose suspension significantly provided the positive charge due to electrostatic force as reported by Zeta potential. With the pH of 12 of bacterial cellulose suspension, particle was nucleated between bacterial cellulose networks. Fourier transform infrared exhibited Fe-O stretching. X-ray diffraction reported that the mixture of Fe2O3 and Fe3O4 was existed onto bacterial cellulose composite. Scanning electron microscope reported that FexOy particle was randomly distributed in bacterial cellulose network. Intensity of Fe was qualitatively observed by energy dispersive analysis. With the …