Article
Energy & Fuels
Palaniappan Seedevi
Summary: The present study investigated the antibacterial, antifungal, and anticancer activity of a methanolic extract from the leaf of Parthenium hysterophorous and their chemical characterization. The methanolic extract showed antibacterial activity against clinical bacterial strains and no antifungal activity against fungal strains. It also demonstrated anticancer activity against lung cancer cell line. Therefore, the methanolic extract of P. hysterophorous could be used to develop novel drugs for incurable diseases.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Engineering, Environmental
Wenjia Zhu, Chunmei Hu, Yanfang Ren, Ying Lu, Yaping Song, Yu Ji, Chuan Han, Junyu He
Summary: In this study, zinc oxide nanoparticles were synthesized using leaf extract of Cinnamomum camphora and zinc acetate, showing potential antifungal activity against Alternaria alternata. The size of the synthesized particles varied depending on pH levels, with the best antifungal effect observed in ZnO NPs synthesized at pH 7.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Cheng Wei, Hualan Li, Guoqiang Cui, Chunhui Ma, Ronggen Deng, Zhengrong Zou, Zaizhi Liu
Summary: Cinnamomum camphora leaf essential oil extracted using enzymatic-ultrasound pretreatment followed by microwave assisted extraction showed strong inhibitory effects on the mycelial growth of five important pathogens causing potato dry rot. The optimized extraction conditions resulted in a higher yield of essential oil compared to traditional methods. The main constituents of the essential oil were identified through gas chromatography-mass spectrometry analysis. In vitro antifungal activity assay confirmed the significant impact of the essential oil on the mycelial growth of Fusarium spp.
ARABIAN JOURNAL OF CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Boo-Kyoung Kim, Hae-Se Lee, Hee-Su Yang, Kyung-Bin Song
Summary: The study focused on developing antioxidant films using starch extracted from ginkgo nuts and incorporating cinnamon essential oil. The results showed that the flexibility and antioxidant activities of the films increased with higher levels of cinnamon essential oil, while the tensile strength decreased. The films also had increased water vapor permeability and a homogeneous microstructure, indicating potential for their use in antioxidant food packaging.
Article
Green & Sustainable Science & Technology
Prasetyorini Djarot, Yulianita, Novi Fajar Utami, Aditya Mahesa Putra, Yurena Irma Mulya Putri, Sri Melia Muhardianty, Tiara Akasi Suciyani, Asep Syaepulrohman
Summary: This study aimed to determine the antibacterial and antifungal properties of microwave-assisted extraction (MAE) extracts from C. burmanni bark against Streptococcus mutans, Staphylococcus aureus, Candida albicans, and Candida tropicalis, as well as its antioxidant and flavonoid content. The study involved qualitative and quantitative phytochemical tests, as well as antioxidant, minimum inhibitory concentration (MIC), and inhibitory area width (IAW) measurements. Results showed that the 3% n-hexane extract from C. burmanni bark had the best antifungal and antibacterial effects, with an IAW of 13.83 mm. The ethanol extract exhibited the highest antioxidant activity, with a very active IC50 of 8.533 ppm and the highest flavonoid content.
Article
Veterinary Sciences
Olasunkanmi S. Olawuwo, Ibukun M. Famuyide, Lyndy J. McGaw
Summary: Antimicrobial resistant poultry pathogens pose a threat to both animal health and human health, and alternative products and strategies are being sought to reduce their prevalence. In this study, extracts from certain plant species showed potential as alternative feed additives in poultry production, with good antibacterial and anti-biofilm activities. Further studies are needed to evaluate their efficacy as herbal feed additives in vivo.
FRONTIERS IN VETERINARY SCIENCE
(2022)
Article
Multidisciplinary Sciences
Viji Paramasivam, Prema Paulpandian, Karthikeyan Venkatachalam, Shahid Hussain, Aleyna Kangal, Dunia A. Al Farraj, Mohamed S. Elshikh, Paulraj Balaji
Summary: This study aimed to synthesize gold nanoparticles using extracts from Andrographis paniculata leaves and evaluate their efficacy against MCF7 cells and selected human pathogens. The research concluded that gold nanoparticles derived from herbs have potential in cancer therapy and antimicrobial applications, but safe dosage and precise formulation are crucial.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2023)
Article
Polymer Science
Wafaa E. Soliman, Heba S. Elsewedy, Nancy S. Younis, Pottathil Shinu, Lamis E. Elsawy, Heba A. Ramadan
Summary: The characterization and application of gold nanoparticles (Au-NPs) in antimicrobial and wound healing activities were investigated in this study. The results showed that Au-NPs possessed appropriate particle size and rod-shaped particles, exhibiting efficient antimicrobial behavior against different bacterial strains. Furthermore, Au-NPs demonstrated promising wound healing activity in diabetic animals.
Article
Integrative & Complementary Medicine
Walimuni Prabhashini Kaushalya Mendis Abeysekera, Galbada Arachchige Sirimal Premakumara, Wanigasekera Daya Ratnasooriya, Walimuni Kanchana Subhashini Mendis Abeysekera
Summary: The leaf extracts of Ceylon cinnamon possess various health activities, including anti-inflammatory, anticancer, and anti-lipid metabolism properties. This is the first study to report all the investigated bioactivities of Ceylon cinnamon leaf.
BMC COMPLEMENTARY MEDICINE AND THERAPIES
(2022)
Article
Biochemistry & Molecular Biology
Darbin Kumar Poudel, Anil Rokaya, Pawan Kumar Ojha, Sujan Timsina, Rakesh Satyal, Noura S. Dosoky, Prabodh Satyal, William N. Setzer
Summary: Cinnamomum camphora L. is grown for multiple purposes including ornamental, furniture material, source of camphor, and essential oil for perfume and alternative medicine. Different tissues of C. camphora showed varying essential oil compositions and antimicrobial activities, with wood demonstrating effective antibacterial properties against Serratia marcescens.
Article
Fisheries
Mohammed A. E. Naiel, Mohamed K. Khames, Nashwa Abdel-Razek, Amany A. Gharib, Khaled A. El-Tarabily
Summary: Adding 2.5 g/kg concentration of miswak leaf powder (MLP) improves the growth performance, feed utilization, and feed efficiency of Nile tilapia. In challenge testing against Aeromonas hydrophila, a high concentration of MLP (10 g/kg) increases protein content in fish body, shows significant antibacterial and antifungal effects, and can be used to enhance resistance against the disease caused by the bacteria.
AQUACULTURE REPORTS
(2021)
Article
Chemistry, Medicinal
Leandro Vinicius Fernandes de Morais, Jefferson Romaryo Duarte da Luz, Thayse Evellyn Silva do Nascimento, Marcelo Arrison dos Santos Azevedo, Walicyranison Plinio da Silva Rocha, Gabriel Araujo-Silva, Marcela Abbott Galvao Ururahy, Guilherme Maranhao Chaves, Jose Brandao-Neto, Jorge A. Lopez, Elizabeth Cristina Gomes Santos, Maria das Gracas Almeida
Summary: This study evaluated the phenolic composition, toxicity, and antimicrobial activity of Licania rigida Benth, showing significant amounts of phenolic compounds and total flavonoids in the extract and fraction, with effective antimicrobial activity against gram-positive bacteria and fungi, but no observed toxicity effects in animals during the experiment.
JOURNAL OF MEDICINAL FOOD
(2022)
Article
Biotechnology & Applied Microbiology
Suellen Pedrosa da Silva, Jose Dayvid Ferreira da Silva, Clarice Barbosa Lucena da Costa, Pollyanna Michelle da Silva, Anderson Felipe Soares de Freitas, Carlos Eduardo Sales da Silva, Abdenego Rodrigues da Silva, Alisson Macario de Oliveira, Roberto Araujo Sa, Ana Rosa Peixoto, Ana Patricia Silva de Oliveira, Patricia Maria Guedes Paiva, Thiago Henrique Napoleao
Summary: This study describes the purification of a new low-toxic and thermostable lectin from Portulaca elatior, a plant species found in the Brazilian Caatinga region. The lectin showed antimicrobial activity, specifically against Pectobacterium strains, and no hemolytic activity or acute toxicity in mice.
PROBIOTICS AND ANTIMICROBIAL PROTEINS
(2023)
Article
Microbiology
Ashley L. Cunningham, Orhi Esarte Palomero, Bradley J. Voss, M. Stephen Trent, Bryan W. Davies
Summary: Otilonium bromide, a poorly absorbed oral medication used for irritable bowel syndrome, has been found to have broad-spectrum antibacterial and antifungal activity, including against multidrug-resistant strains. This suggests that otilonium bromide could be a new option for intestinal antimicrobial therapy targeting enteric pathogens.
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
(2021)
Review
Biochemistry & Molecular Biology
Tianxi Li, Lulu Li, Fangyuan Du, Lei Sun, Jichao Shi, Miao Long, Zeliang Chen
Summary: This review focuses on antifungal peptides isolated from various microorganisms, outlining their antifungal activity, toxic effects, and mechanisms of action, as well as common solutions to mitigate their toxicity. This work serves as a useful reference for further clinical research and the development of safe antifungal drugs with high efficiencies and broad application spectra.
Article
Nanoscience & Nanotechnology
G. Dhanu Krishna, V. P. Mahadevan Pillai, K. G. Gopchandran
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS
(2020)
Article
Materials Science, Multidisciplinary
V. S. Kavitha, S. R. Chalana, R. Reshmi Krishnan, K. G. Gopchandran, V. P. Mahadevan Pillai
Article
Chemistry, Inorganic & Nuclear
Sajesh Sasidharan, G. Jyothi, S. Sameera, K. G. Gopchandran
JOURNAL OF SOLID STATE CHEMISTRY
(2020)
Article
Engineering, Electrical & Electronic
G. Dhanu Krishna, V. P. Mahadevan Pillai, K. G. Gopchandran
OPTICAL FIBER TECHNOLOGY
(2020)
Article
Spectroscopy
Sunil Thomas, Rani George, Naser Qamhieh, K. G. Gopchandran, Saleh T. Mahmoud, Alessia Quatela
Summary: This study synthesized a Sr1.0Ba2.0B6O12:O.5Sm(3+) phosphor using the solid-state reaction method, and explored its spectroscopic properties including morphology, elemental composition, phase changes, crystallite phases, molecular vibrations, energy bandgap, bonding nature, and radiative properties. The phosphor emits cool-white light with high spectroscopic quality factor, stimulated-emission cross-section, quantum efficiency, and white-light emission, making it useful for display and lighting applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Analytical
C. R. Rekha, S. G. Jiji, V. U. Nayar, K. G. Gopchandran
Summary: Hexagonal hollow Au-Ag nanostructures were synthesized using galvanic replacement mechanism with silver nanoparticles as sacrificial templates. The cavity dimension in the hollow structures was found to be dependent on the amount of HAuCl4 used, and the optimal Ag: Au ratio was determined. The SERS activity of these hollow nanostructures was investigated using PCA, revealing them as reliable substrates for multiplexed SERS detection.
VIBRATIONAL SPECTROSCOPY
(2021)
Article
Optics
Sajesh Sasidharan, G. Jyothi, K. G. Gopchandran
Summary: Perovskite titanate nanophosphors, Ca1-x-yYxTiO3:yEu3+, have been successfully synthesized through solution combustion synthesis, achieving a tenfold increase in luminescence intensity and high color purity and long luminescence lifetime. X-ray Photoelectron Spectroscopy studies confirmed the 3+ oxidation state of yttrium and europium ions, as well as their occupancy at Ca2+ sites. The presence of Raman modes and TEM analysis also revealed the high crystallinity of the phosphors.
JOURNAL OF LUMINESCENCE
(2021)
Article
Engineering, Electrical & Electronic
P. Sajith Sethu, K. G. Gopchandran, Sam Solomon
Summary: The study proposes an optical system based on non-binary quasi-cyclic LDPC codes with a chi-square channel model to achieve large coding gains with smaller codeword lengths. Non-binary LDPC codes offer better error performance compared to their binary versions, while the quasi-cyclic property helps reduce encoding complexity.
OPTICAL AND QUANTUM ELECTRONICS
(2021)
Article
Chemistry, Inorganic & Nuclear
Ramachandrapanicker Devi Chandra, Lalan Veena, Kunnel Gopalan Gopchandran
Summary: Cobalt (Co)-doped ZnO nanoparticles were synthesized at 100°C using a simple chemical technique, resulting in nanoparticles with high crystallinity and reduced defect density. Co-doping suppressed oxygen-vacancy-related defects at lower doping densities, but increased defect density at higher doping densities. Co-doping was found to significantly suppress defects in ZnO for electronic and optoelectronic applications, as demonstrated by XPS, PL, electrical conductivity, and Mott-Schottky analysis. Photodetectors fabricated with Co-doped ZnO nanoparticles showed faster response time due to the reduced defect density.
INORGANIC CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Veena Lalan, V. P. Mahadevan Pillai, K. G. Gopchandran
Summary: The synthesis of a new ternary nanocomposite, Ag-CaTiO3@rGO, with high photocatalytic dye degradation efficiency is reported. The high degradation efficiency of this photocatalyst is attributed to the synergistic effect of plasmon-induced visible light-harvesting due to Ag and enhanced adsorption and electron-transport properties due to rGO.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2022)
Article
Engineering, Electrical & Electronic
Ramachandrapanicker Devi Chandra, Kunnel Gopalan Gopchandran
Summary: Wurtzite ZnO nanoparticles were synthesized via a one-step process at temperatures ranging from 30-100 degrees C, resulting in highly crystalline particles with low oxygen vacancies that cause green emission. Various analyses such as XRD, HRTEM, photoluminescence, and XPS confirmed the characteristics of the nanoparticles. Optical absorption spectroscopy was used to estimate the band gap, and photodetectors made from the nanoparticles exhibited a clear response to UV light, making them promising candidates for linear optical synaptic devices.
ACS APPLIED ELECTRONIC MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
G. Jyothi, K. G. Gopchandran
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2020)
Proceedings Paper
Materials Science, Multidisciplinary
Viji Vidyadharan, S. Sameera, K. G. Gopchandran
MATERIALS TODAY-PROCEEDINGS
(2020)
Proceedings Paper
Engineering, Electrical & Electronic
G. Jyothi, K. G. Gopchandran
3RD INTERNATIONAL CONFERENCE ON OPTOELECTRONIC AND NANO MATERIALS FOR ADVANCED TECHNOLOGY (ICONMAT 2019)
(2019)
Article
Chemistry, Physical
S. G. Jiji, K. G. Gopchandran
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2019)
Article
Spectroscopy
Zh. E. Ozbekova, A. A. Abdyldaev, A. A. Kulmyrzaev
Summary: This study compared two drying methods for cow and yak muscles, finding that freeze drying caused less discoloration. Additionally, analysis of fluorescence spectra allowed for accurate prediction of chemical composition and color characteristics of the muscles.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Leo Mandic, Ivan Ljubic, Iva Dzeba
Summary: In this study, a combined experimental and computational approach was used to investigate the photoexcitation and photodegradation mechanisms of Doxazosin (DOX). The results provide valuable insights into the primary events following the photoexcitation of DOX and its potential applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiufeng Wang, Yao Jin, Wenhui Ai, Siqi Wang, Zhiqing Zhang, Ting Zhou, Fang Wang, Guodong Zhang
Summary: This study successfully synthesized near infrared fluorescence Ag2S quantum dots (QDs) and developed a dual-mode sensor for sulfide anion using the excellent oxidase-like characteristics of manganese dioxide (MnO2) nanosheets. The sensor showed a wider detection range, higher sensitivity, and shorter reaction time, making it suitable for highly selective detection of sulfide in different concentration ranges.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yafei Li, Yanming Ma, Chuantao Zheng, Di Yu, Lien Hu, Shuo Yang, Fang Song, Yadan Li, Shuanghai Liu, Zhanrui Zhang, Yu Zhang, Yiding Wang, Frank K. Tittel
Summary: To effectively monitor gas explosion and coal spontaneous combustion in coal mine, an intrinsically safe and explosion-proof dual-gas sensor system was developed for methane (CH4) and carbon monoxide (CO) measurement. The system achieved different measurement ranges using laser scanning and gas cells, and improved stability and accuracy through gas pre-treatment and temperature compensation algorithm.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Pei-Rong Chen, Li-Kang Chu
Summary: In this study, the hydrates of glyoxal were investigated using infrared absorption spectrometry. The results showed that at low concentrations, glyoxal mainly exists as monomeric dihydrate. These findings provide suitable detection windows for further research on the roles of glyoxal and its hydrates in atmospheric and aerosol chemistry, as well as the relevant reaction kinetics.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Nichole O'Neill, Thamires A. Lima, Fabio Furlan Ferreira, Nicolas J. Alvarez, Reinhard Schweitzer-Stenner
Summary: This study determines the main fibril axis of GHG gel-forming fibrils using various techniques and compares the results with simulated data. The analysis suggests that the hydrophobic xz-surfaces of GHG fibrils could be a good target for the adsorption of hydrophobic drugs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Mengyuan Liu, Hanchuang Zhu, Yikun Fang, Caiyun Liu, Xinke Li, Xiaohui Zhang, Lixue Ma, Kun Wang, Miaohui Yu, Wenlong Sheng, Baocun Zhu
Summary: ABHS is an efficient fluorescent probe that can accurately and sensitively detect Al3+ with strong resistance to interference. It also demonstrates excellent detection and imaging capabilities in complex real samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Ahmed S. El-Shafie, Evana Rahman, Yasser Gadelhak, Rehab Mahmoud, Marwa El-Azary
Summary: The recycling of waste mandarin peels into biochar (MRBC) has been used as a high performance and cost-effective adsorbent for treating polluted wastewater effluents. Batch adsorption studies were conducted to analyze the adsorption competency of MRBC on two dyes, methylene blue (MB) and basic fuchsin (BF), either in individual solutions or binary combinations. The results showed that MRBC was capable of effectively removing a high percentage of both dyes. However, the adsorption capacity decreased when the dyes were combined. The cost estimation of MRBC production and wastewater treatment indicated that both were relatively low.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Anindita Bhatta, Jahnabi Upadhyaya, Dipak Chamlagai, Lincoln Dkhar, Pynskhemborlang T. Phanrang, Mohan Rao Kollipara, Sivaprasad Mitra
Summary: Derivatives of thiazole-pyrazole fused benzo-coumarin compounds were synthesized and their photophysical properties were investigated. The synthesized coumarin compounds showed potential as therapeutic agents for Alzheimer's disease, inhibiting acetylcholinesterase activity. The presence of human serum albumin was found to affect the inhibition activity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yongwei Duan, Quancheng Liu, Yiju Zhu, Qi Zhang, Xiaohui Duan, Hu Deng, Liping Shang
Summary: In this study, the phase transition of CL-20 was observed using terahertz spectroscopy, and quantum chemical calculations were employed to analyze the vibrations. The results indicated changes in the vibrations of CL-20 before and after phase transition.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yuefeng Gao, Sai Xu, Baojiu Chen
Summary: This study synthesized Cs2NaInCl6 nanocrystals co-doped with Sb3+ and Tb3+ ions as probes for copper ions detection in lubricating oil. The introduction of Sb3+ effectively reduced the band gap of the host material and enabled energy transfer pathway for Tb3+ emission. The doped Tb3+ ions resulted in the suppression of emission due to electron transfer. The Cs2NaInCl6: 2.5 %Sb3+, 40 %Tb3+ NCs exhibited superior sensitivity and selectivity for copper ions detection.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yu Liu, Yue Zhang, Changyao Liu, Ce Wang, Baocai Xu, Li Zhao
Summary: A highly sensitive detection platform for heparin was developed using a cationic fluorescent dye (cresyl violet acetate) as a fluorescence probe. The platform demonstrated high selectivity towards heparin and achieved detection in both HEPES solution and serum.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Lopamudra Roy, Nivedita Pan, Susmita Mondal, Ria Ghosh, Md. Nur Hasan, Neha Bhattacharyya, Soumendra Singh, Kallol Bhattacharyya, Arpita Chattopadhyay, Samir Kumar Pal
Summary: The study focuses on the interaction between reactive oxygen species (ROS) and a spectroscopic probe called Rose Bengal (RB), encapsulated in nanoscopic sodium dodecyl sulphate (SDS) micelles and entrapped in microscopic nylon 66 solid matrix. The research demonstrates efficient interaction between ROS and RB-SDS, and investigates the mechanism of hydroxyl radicals generation. Based on these findings, a prototype device utilizing RB embedded in a nylon thin film for quantification of ROS in extracellular fluids and food materials was developed.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiaosong Sun, Qihao Cui, Wenyue Dong, Qian Duan, Teng Fei
Summary: Conjugated porous polymers (CPPs) are promising sensing materials and their application in aqueous media is limited. In this study, we synthesized CPPs with porous structure and prepared nanoparticles, enabling efficient photoluminescence sensing of nitroaromatic explosives in aqueous phase.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Maria Cristina Caggiani, Germana Barone, Paolo Mazzoleni
Summary: Raman spectroscopy is commonly used for studying glassy materials in cultural heritage, but it is more difficult to interpret the spectra and apply the technique with portable instruments. In contrast, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) can be used in archaeometric investigations as it is portable and non-invasive. However, there is limited application of this technique to historical glasses. This exploratory work demonstrates the potential of DRIFTS, in combination with portable X-ray Fluorescence (pXRF) and EDS microanalyses, for studying the composition and alteration of glass samples in cultural heritage.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
