Results 41 to 50 of about 173,479 (247)

Isolation of Flavonoid Compounds from Amyl Alcohol Fraction of Golek Mango Leaf (Mangifera indica L cv. Golek)

open access: yesJurnal Kimia Sains dan Aplikasi, 2019
Mango plant (Mangifera indica L.) is a tropical fruit plant with high nutrition in the Anacardiaceae family. One of the several varieties of mango plants spread throughout Indonesia, namely mango golek.
Maulina Dwi Haryani   +2 more
doaj   +1 more source

Combinatorial Synthesis of Next Generation Water‐Soluble Quaternized N‐Halamine Oligomers with Long‐Lasting Antiviral Properties

open access: yesAdvanced Functional Materials, EarlyView.
A combinatorial library of dual‐functional antiviral oligomers incorporating N‐halamine and quaternary ammonium functionalities is developed for long‐lasting antiviral activity. The lead materials exhibit rapid and durable antiviral activity against SARS‐CoV‐2 variants and influenza H1N1, with 4 to 5 log reduction in viral copies at 5 mg mL−1 ...
Eid Nassar‐Marjiya   +14 more
wiley   +1 more source

Molecular Structures and Spectral Properties of Natural Indigo and Indirubin: Experimental and DFT Studies

open access: yesMolecules, 2019
This paper presents a comparative study on natural indigo and indirubin in terms of molecular structures and spectral properties by using both computational and experimental methods.
Zixin Ju, Jie Sun, Yanping Liu
doaj   +1 more source

Dehydroxylation of Minerals of Gadisunkapur Area with Special Reference to FTIR and Thermal Study

open access: yesInternational Journal of Economic and Environment Geology, 2020
This paper attempts to explain the presence of OH group for micas along with some sulfate, chlorite, quartz and feldspar minerals. These minerals are found to be associated with barite vein, metasediments (quartz-chlorite schist ...
Marularadhya C. Hiremath, A. Sreenivasa
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Low-temperature plasma-modified zeolite (LTPMZ) vs. natural Bulgarian zeolite (NBZ) – Comparative physicochemical, UV/VIS and FTIR studies

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2016
The aim of the present study was to investigate and compare the physicochemical, morphological properties and sorption potential of natural Bulgarian zeolite (NBZ) and low-temperature plasma modified zeolite (LTPMZ).
Zvezdelina Yaneva   +2 more
doaj   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

PENGARUH TOREFAKSI TERHADAP SIFAT KIMIA PELET TANDAN KOSONG KELAPA SAWIT

open access: yesJurnal Teknik Pertanian Lampung, 2020
Limbah padat perkebunan sawit yang relatif mudah dijumpai ialah tandan kosong kelapa sawit (TKKS). Biomassa TKKS dikonversikan menjadi pelet untuk mendapatkan ukuran yang seragam, kemudian ditorefaksi untuk digunakan sebagai bioenergi sehingga ...
Irma Thya Rani   +5 more
doaj   +1 more source

ИЗУЧЕНИЕ ЛАКОВОГО ИЗДЕЛИЯ ИЗ РАСКОПАННЫХ ХУННУСКИХ КУРГАНОВ В ДОЛИНЕ ТАМИРА, АРХАНГАЙ (Монголия)

open access: yesТеория и практика археологических исследований, 2019
Империя хунну/сюнну (конец III в. до н.э. - I в. н.э.) контролировала центрально-азиатские регионы Шелкового пути; экономические и культурные отношения с империей Хань подтверждается наличием китайских лакированных изделий в археологических памятниках ...
С. Саран   +4 more
doaj   +1 more source

FTIR-based Fingerprinting and Chemometrics for Rapid Investigation of Antioxidant Activity from Syzygium polyanthum Extracts

open access: yesIndonesian Journal of Chemistry, 2020
Syzygium polyanthum, known as salam in Indonesia, which is rich in phenolics compounds with high antioxidant activity. In this study, we performed the determination of total phenolics and characterization of the antioxidant activity of S.
Eti Rohaeti   +2 more
doaj   +1 more source

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