Article
Multidisciplinary Sciences
Yu-Cheng Chang, Yi-Ching Chiu, Nai-Wen Tsao, Yuan-Lin Chou, Choon-Meng Tan, Yi-Hsuan Chiang, Pei-Chi Liao, Ya-Chien Lee, Li-Ching Hsieh, Sheng-Yang Wang, Jun-Yi Yang
Summary: This study characterized the core genes involved in betalain biosynthesis in Amaranthus tricolor through comparative transcriptome analysis and functional enzymatic experiments, revealing the mechanism of red betalain pigment synthesis.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Xuening Cheng, Can Chen, Yuming Hu, Xiliang Guo, Jianlong Wang
Summary: In this study, Amaranthus tricolor was used to investigate its response to different concentrations of strontium ions in terms of photosynthesis. The results demonstrated that strontium ions had an impact on light energy conversion and utilization in A. tricolor, with low concentrations promoting energy utilization and higher concentrations leading to excess light energy. Strontium stress also affected the acceptor side of PSII and led to accumulation of Q(A)(-) and blockage in Q(B) downstream of the electron transfer chain. A. tricolor showed tolerance to strontium and its ability to remediate strontium contamination was reflected in biomass and strontium content. The transfer factors and bio-concentration factors indicated that A. tricolor has the potential for strontium remediation.
Article
Chemistry, Physical
Mamatha Susan Punnoose, Siby Joseph, Bony K. John, Anu Rose Chacko, Sneha Mathew, Beena Mathew
Summary: This study reports a green method for the synthesis of gold nanoparticles using Amaranthus tricolor leaves with the assistance of microwave energy. The synthesized nanoparticles were characterized using various analytical techniques and their catalytic, antibacterial, and cytotoxic activities were evaluated.
Article
Agronomy
Norain Jamalluddin, Festo J. Massawe, Sean Mayes, Wai Kuan Ho, Ajit Singh, Rachael C. Symonds
Summary: Through two drought screening trials, this study identified eight drought-tolerant germplasms in Amaranthus tricolor with stable performance across the two trials, and revealed that change in stem biomass may be a key adaptation mechanism for drought tolerance. They also found that dark-adapted quantum yield could be a useful parameter for identifying drought tolerance in amaranth.
Article
Environmental Sciences
Chufan Liu, Rongbo Xiao, Weijie Dai, Fei Huang, Xiaojun Yang
Summary: The study found that most of the Cd in plants came from soil, with atmospheric deposition also playing a role. High soil Cd concentrations had a greater impact on the accumulation and physiological responses of plants compared to atmospheric deposition. The antioxidant system of plants was severely affected by high Cd-contaminated soil, leading to increased oxidative stress and damage to plant cells.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biochemistry & Molecular Biology
Umakanta Sarker, Shinya Oba, Sezai Ercisli, Amine Assouguem, Amal Alotaibi, Riaz Ullah
Summary: This study evaluated the phytochemicals and antioxidant activity of drought-resistant amaranth, revealing their abundance in nutrients and antioxidant profiles, which make them suitable for the production of drinks and beneficial for promoting health and nourishing communities in drought-prone areas.
Article
Environmental Sciences
Xuening Cheng, Can Chen, Yuming Hu, Jianlong Wang
Summary: This study investigated the response of Amaranthus tricolor to different cesium concentrations, finding that low cesium levels can enhance plant growth while high concentrations inhibit it. A. tricolor showed optimal growth and remediation ability at a cesium level of 0.2 mM.
Article
Environmental Sciences
Xuening Cheng, Can Chen, Yuming Hu, Jianlong Wang
Summary: This study investigated the response of Amaranthus tricolor to cesium ions in hydroponic solution. It was found that A. tricolor showed enhanced growth and cesium accumulation at low concentrations, but was inhibited at high concentrations. The performance of photosystem II was also affected by cesium, with inhibition at high concentrations and enhancement at low concentrations.
Article
Agronomy
Siyuan Jin, Zhaoyang Ding, Jing Xie
Summary: The study demonstrated that suitable atmospheric packaging could delay the physiological changes of fresh-cut amaranth during handling and storage, while maintaining antioxidant enzyme activity and preserving its quality.
Review
Chemistry, Multidisciplinary
Mahendra Rai, Avinash P. Ingle, Joanna Trzcinska-Wencel, Magdalena Wypij, Shital Bonde, Alka Yadav, Gabriela Kratosova, Patrycja Golinska
Summary: Nanobiotechnology is a rapidly emerging field with significant potential, and biogenically synthesized silver nanoparticles exhibit unique physicochemical properties that enable a wide range of applications in medicine, food, agriculture, and industries.
Article
Plant Sciences
Tessa B. Moyer, Jessie L. Allen, Lindsey N. Shaw, Leslie M. Hicks
Summary: Traditional medicinal plants are a rich source of antimicrobial agents, including antimicrobial peptides (AMPs). Advances in genomic sequencing, in silico AMP predictions, and mass spectrometry-based peptidomics have enabled high-throughput discovery of bioactive peptides. This study profiled Amaranthus tricolor aerial tissue using MS-based proteomics/peptidomics, identifying AMPs predicted in silico and uncovering novel peptides within three AMP classes. Bioactivity screening of isolated Atr-LTP1 showed efficacy against ESKAPE bacterial pathogens.
JOURNAL OF NATURAL PRODUCTS
(2021)
Article
Plant Sciences
Jana Michailidu, Olga Matatkova, Irena Kolouchova, Jan Masak, Alena Cejkova
Summary: This study confirmed that ethanolic Vitis vinifera cane extract combined with silver nitrate can effectively produce silver nanoparticles with significant antimicrobial properties against Pseudomonas aeruginosa bacteria. Moreover, the use of wine agriculture waste is an ecological and economical method for the production of silver nanoparticles.
Article
Multidisciplinary Sciences
Dongyang Wang, Baiji Xue, Lin Wang, Yidi Zhang, Lijun Liu, Yanmin Zhou
Summary: This study successfully biosynthesized silver nanoparticles (AgNPs) using the culture supernatants of Aspergillus sydowii, and identified the AgNPs with various methods. The optimized synthesis conditions showed that AgNPs had antifungal and antiproliferative activities.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Fatemeh Baniasadi, Masoud Arghavani, Vahid Reza Saffari, Mehdi Mansouri
Summary: This study investigated the interaction between sodium nitroprus-side (SNP) as a source of nitric oxide (NO) and cadmium (Cd) toxicity on growth and physiological traits in edible amaranth. The results showed that medium level of SNP (100μM) increased growth-related traits and improved plant tolerance to Cd stress. Cd treatments reduced growth and production of amaranth plants, while SNP had a protective effect by trapping Cd in the roots. These findings highlight the importance of SNP in mitigating the negative effects of Cd toxicity on edible amaranth.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Gaurav R. Dey, Connor R. McCormick, Samuel S. Soliman, Albert J. Darling, Raymond E. Schaak
Summary: Nanoparticles of high entropy alloys (HEAs) have distinct properties due to their high surface-to-volume ratios and synergistic interactions among their constituent elements. However, the complex multielement compositions of HEA nanoparticles makes it challenging to identify and understand their reaction chemistry and formation pathways, hindering their rational synthesis.
Article
Chemistry, Physical
Is Fatimah, Gani Purwiandono, Arif Hidayat, Suresh Sagadevan, Azlan Kamari
Summary: A magnetically separable nanocomposite of gamma-Fe2O3/montmorillonite (gamma-Fe2O3/Mt) with high photocatalytic activity for rhodamine B photodegradation has been successfully synthesized. The nanocomposite consists of uniformly dispersed gamma-Fe2O3 nanoparticles in a montmorillonite structure, and its degradation mechanism involves a significant contribution of the adsorption mechanism. The nanocomposite can be easily separated and reused due to its magnetism, without any chemical change even after repeated cycles.
CHEMICAL PHYSICS LETTERS
(2022)
Review
Chemistry, Inorganic & Nuclear
Is Fatimah, Ganjar Fadillah, Gani Purwiandono, Imam Sahroni, Dyah Purwaningsih, Handy Riantana, Adnan Nur Avif, Suresh Sagadevan
Summary: Magnetic silica nanocomposites (MSNCs) have shown great potential in environmental and medical applications. Controlled synthesis, structural design, and magnetic properties allow for specific functionalities such as adsorption, catalysis, photocatalysis, and drug delivery. The magnetic properties provide advantages in terms of recyclability and easy separation. Further research and challenges in these fields are also discussed.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Is Fatimah, Gani Purwiandono, Muhammad Husnu Jauhari, Annabel Audita Aisyah Putri Maharani, Suresh Sagadevan, Won-Chun Oh, Ruey-an Doong
Summary: SnO2 nanoparticles were synthesized using Tinospora cordifolia stem extract, and the effects of extract concentration and ultrasound irradiation on chemical properties were studied. The results showed that higher extract concentration resulted in larger particle size and polymorphic forms, while ultrasound-assisted reduction produced smaller particles. The optical properties were correlated with particle size.
ARABIAN JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Is Fatimah, Amri Yahya, Rendy Muhamad Iqbal, Muchammad Tamyiz, Ruey-an Doong, Suresh Sagadevan, Won-Chun Oh
Summary: The study successfully enhanced the photocatalytic activity of Zn-Al layered double hydroxides through calcination, resulting in improved removal of methyl violet and natural organic materials in peat water.
Review
Chemistry, Multidisciplinary
Is Fatimah, Ganjar Fadillah, Ika Yanti, Ruey-an Doong
Summary: Advanced oxidation processes (AOPs) utilizing heterogeneous catalysts have gained significant attention. The use of solid catalysts, especially clay-supported metal and metal oxide catalysts, offers better performance, stability in hostile environments, and recyclability. This review discusses the synthesis, features, and future perspectives of clay-supported catalysts for AOPs, emphasizing the importance of clay modifications and the role of clay supports in enhancing the mechanism of AOPs.
Article
Materials Science, Multidisciplinary
Bayu Wiyantoko, Puji Kurniawati, Tri Esti Purbaningtias, Muhammad Husnu Jauhari, Amri Yahya, Muchammad Tamyiz, Is Fatimah, Ruey-an Doong
Summary: The present study aimed to prepare and characterize calcined Mg/Al layer double hydroxides (LDHs) for the adsorption of methyl orange in a batch system. The results showed that calcined LDHs were efficient adsorbents for the remediation of methyl orange at relatively high concentrations.
MATERIALS RESEARCH EXPRESS
(2022)
Article
Engineering, Chemical
J. Anita Lett, Suresh Sagadevan, Getu Kassegn Weldegebrieal, Is Fatimah
Summary: In this study, nickel oxide nanoparticles were successfully synthesized and characterized. The synthesized sample showed a high level of purity with a cubic phase structure and spherical morphology. The photocatalytic test demonstrated a degradation efficiency of 46% for methylene blue under natural sunlight irradiation and natural pH conditions, following both pseudo-first-order and pseudo-second-order kinetic models. This synthesis method has the potential for the effective removal of organic pollutants from water and wastewater under prolonged exposure to natural sunlight without the need for oxidants or pH adjustment.
BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS
(2022)
Article
Engineering, Environmental
Manh Dung Nguyen, Thanh Binh Nguyen, Linh Hai Tran, Thuy Giang Nguyen, Is Fatimah, Eko Prasetyo Kuncoro, Ruey-An Doong
Summary: In this study, flower-like core-shell CNBS@MnO2 heterojunction with Z-scheme structure was successfully constructed for enhanced photocatalytic degradation of diclofenac. CNBS@MnO2 provided large specific surface area and reduced interfacial resistance for rapid electron transport, and the redox cycling of Mn species activated PMS to produce sulfate radicals. The heterojunction exhibited excellent performance and stability, and the dominant reactive species for diclofenac degradation were identified.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Is Fatimah, Putwi Widya Citradewi, Gani Purwiandono, Habibi Hidayat, Suresh Sagadevan
Summary: In this study, reduced graphene oxide/nickel oxide nanocomposites were synthesized using a green method and their photocatalytic activity was investigated. The results showed that the NiO/rGO composite exhibited excellent photocatalytic performance for tetracycline degradation under both UV and visible light illumination. Additionally, it also demonstrated antibacterial activity against Staphylococcus aureus and Eschericia coli.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Engineering, Chemical
Galih Dwiki Ramanda, A. Allwar, Muchammad Tamyiz, Is Fatimah, Ruey-an Doong
Summary: The study aimed to create a cost-effective catalyst for converting vegetable oil into green diesel. The catalyst, nickel-dispersed biochar (Ni/BC), was prepared by pyrolyzing nickel precursor with palm leaves waste under N2 stream at 500 degrees C. The catalyst was examined using various techniques and was found to have single nickel nanoparticles on its surface. The Ni/BC catalyst showed excellent catalytic activity for converting rice bran oil into diesel with a high yield of 85.3% and selectivity of 92.6%.
BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS
(2023)
Article
Multidisciplinary Sciences
Suresh Sagadevan, Ramesh Poonchi Sivasankaran, J. Anita Lett, Is Fatimah, Getu Kassegn Weldegebrieal, Estelle Leonard, Minh-Vien Le, Tetsuo Soga
Summary: The synthesis and characterization of hematite (& alpha;-Fe2O3) nanoparticles (NPs) were conducted, and their photocatalytic properties were studied. The α-Fe2O3 NPs were found to have a rhombohedral phase confirmed by XRD, and FT-IR was used to analyze functional groups on the catalyst surface. The bandgap energy was determined to be 2.25 eV using UV-Vis DRS, and SEM images showed a spherical morphology. The α-Fe2O3 NPs exhibited oxidation and reduction properties as analyzed by CV. Under natural sunlight, the degradation efficiency of methylene blue (MB) dye using the α-Fe2O3 NPs reached 33% in 2 hours, with a pseudo-first-order rate constant of 0.0033 min(-1).
Article
Multidisciplinary Sciences
Is Fatimah, Rizky Zenita Sulistyowati, Adytia Wijayana, Gani Purwiandono, Suresh Sagadevan
Summary: In this study, a highly-effective photocatalyst, NiO/g-C3N4, was successfully synthesized using phyto-mediated-synthesized nickel nanoparticles. The results showed that the composite with 10%wt. nickel content exhibited the highest photocatalytic activity, with degradation efficiencies of 95% for Rhodamine B and 98% for tetracycline.
Article
Multidisciplinary Sciences
Is Fatimah, Habibi Hidayat, Putwi Widya Citradewi, Muchammad Tamyiz, Ruey-an Doong, Suresh Sagadevan
Summary: The hydrothermal synthesis of Ti/HA nanocomposite with varied Ti content was investigated in this study. The derived materials were characterized and tested for photocatalytic, antibacterial, and cytotoxicity properties. The results showed that Ti/HA exhibited excellent photocatalytic and antibacterial activity. The increasing Ti content led to larger crystallite size and higher band gap energy, resulting in improved photocatalytic activity. The nanocomposites also showed comparable antibacterial activity to other Ti/HA nanocomposites. However, severe cytotoxicity was observed, indicating the potential biomimetic material.
Review
Engineering, Chemical
Is Fatimah, Ganjar Fadillah, Suresh Sagadevan, Won-Chun Oh, Keshav Lalit Ameta
Summary: The high demand for energy has led to the exploration of renewable resources, particularly biodiesel. Optimizing the production process of biodiesel is essential for it to become an eco-friendly and high-performance energy resource. The development of low-cost and reusable heterogeneous catalysts, such as mesoporous silica materials, has gained significant attention. This review provides updates on the modifications of mesoporous silica catalysts, including acidic, basic, enzyme, and bifunctional catalysts, and discusses future prospects.
Article
Materials Science, Multidisciplinary
Is Fatimah, Ika Yanti, Hiroko Kawaii Wijayanti, Elfira Ulya Nisa, Suresh Sagadevan, Muchammad Tamyiz, Ruey-an Doong
Summary: By supporting NiFe2O4 onto montmorillonite, a highly active and reusable catalyst for methyl violet oxidation was obtained. Through XRD, TEM, XPS, and VSM analyses, it was found that the concentration of precursor played a crucial role in determining the specific surface area, NiFe2O4 particle size, and magnetism. The study also revealed that adsorption had an impact on both the enhancement of catalytic activity and the stability of the catalysts.
