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Articles 1 - 5 of 5
Full-Text Articles in Other Life Sciences
Electrochemical Sensors Based On Graphene Oxide/Pedot:Pss Composite Decorated With Bimetallic Gold–Silver Nanoparticles For H2o2 Detection, Rayyan Azzahra Hidayat, Budi Riza Putra, Munawar Khalil, Wulan Tri Wahyuni
Electrochemical Sensors Based On Graphene Oxide/Pedot:Pss Composite Decorated With Bimetallic Gold–Silver Nanoparticles For H2o2 Detection, Rayyan Azzahra Hidayat, Budi Riza Putra, Munawar Khalil, Wulan Tri Wahyuni
Makara Journal of Science
Hydrogen peroxide (H2O2) is a biomarker that indicates oxidative stress levels in the human body; thus, rapid and accurate detection methods are necessary to diagnose various disorders. This study developed a nonenzymatic electrochemical sensor for detecting H2O2 using bimetallic gold–silver nanoparticles (Au–Ag NPs) combined with graphene oxide and poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)-modified glassy carbon electrode. The surface properties of the modified electrodes were characterized using scanning electron microscopy–energy dispersive spectroscopy and atomic force microscopy. The electrochemical performance of the modified electrodes was evaluated using cyclic voltammetry, electrochemical impedance spectroscopy, and differential pulse voltammetry. The bimetallic Au-Ag …
Evaluation Of The Water Quality And Distribution Of Heavy Metals In The Gomti River Flowing Through The Urban Region Of Lucknow, India, Neha Gondial, Sandhya Bharti
Evaluation Of The Water Quality And Distribution Of Heavy Metals In The Gomti River Flowing Through The Urban Region Of Lucknow, India, Neha Gondial, Sandhya Bharti
Makara Journal of Science
The physicochemical properties and heavy metals contents of the Gomti River water (GRW) samples collected from five selected sites covering a stretch of ~31 km in Lucknow, Uttar Pradesh, India were ascertained. The sites were Ghaila Pul, Mehndi Ghat, Shaheed Smarak, Kukrail Junction, and Bande Dam, represented as S1, S2, S3, S4, and S5, respectively, following from upstream to downstream. S1 was considered as a reference site. The values of pH, temperature, total dissolved solids (TDS), electrical conductivity (EC), turbidity, dissolved oxygen (DO), biochemical oxygen demand (BOD), total hardness (TH), total chloride (TC), total alkalinity (TA), total acidity (TAC), total …
Authentication Of Shallots From Brebes Using Gas Chromatography Fingerprinting Technique Combined With Chemometrics, Yana Setyani Pradina, Adelia Puteri, Gina Fauzia Rachma, Nazwa Balqis, Gerli Puspita Anggraini, Hendri Wasito
Authentication Of Shallots From Brebes Using Gas Chromatography Fingerprinting Technique Combined With Chemometrics, Yana Setyani Pradina, Adelia Puteri, Gina Fauzia Rachma, Nazwa Balqis, Gerli Puspita Anggraini, Hendri Wasito
Makara Journal of Science
Shallots from Brebes, also called Bima Brebes, have a more pungent aroma compared to other varieties. Its high demand results in increased prices in the market, leading to frequent cases of fraud wherein Bima Brebes shallots are replaced with other types of shallots. This study aimed to develop an analytical method using gas chromatography–flame ionization detector (GC-FID) fingerprinting combined with chemometrics to authenticate Bima Brebes shallots. Essential oils were extracted through ultrasonic hydrodistillation, followed by organoleptic, refractive index, GC-FID fingerprinting and chemometric analysis. The yield value of the five studied shallot varieties ranged from 0.02% to 0.08% w/w. Meanwhile, the …
Indonesia And Central Asia: Romanticizing Authoritarian Regime In The Past?, Mochamad Aviandy
Indonesia And Central Asia: Romanticizing Authoritarian Regime In The Past?, Mochamad Aviandy
International Review of Humanities Studies
Even though countries in Central Asia and Indonesia seem to be unrelated, both actually have experienced authoritarian regime and implemented decentralization system after that regime collapsed. Nevertheless, decentralization along with non-authoritarian regime does not automatically bring the desired good result since a new authoritarian regime based on decentralization appears. As a result, the citizens long for the welfare of the centralism system. Before talking further about the comparison of both regions, it is better to have a good understanding of each region.
Childhood And A Culture Of Fear In Lemony Snicket’S A Series Of Unfortunate Events, Nur Aini Annapurna, Dhita Hapsarani
Childhood And A Culture Of Fear In Lemony Snicket’S A Series Of Unfortunate Events, Nur Aini Annapurna, Dhita Hapsarani
International Review of Humanities Studies
This article is an excerpt from an undergraduate thesis of the same title which focuses on A Series of Unfortunate Events, a children‟s book series by Lemony Snicket. This thesis explores how a culture of fear shapes childhood, which is represented in the series. By using qualitative textual analysis the research discusses how the series represent the way childhood is shaped by a culture of fear through the depiction of various characters and social institutions in the novels. This research also explores the author‟s attempts in challenging the notion that children are vulnerable by analyzing the Baudelaires‟ identity and vulnerability. …