Results 41 to 50 of about 1,094,709 (310)

Green synthesis of silver nanoparticles using extract of Parkia speciosa Hassk pods assisted by microwave irradiation

Journal of Advanced Research, 2016
This paper reports an investigation of the microwave-assisted synthesis of silver nanoparticles (Ag NPs) using extract of stinky bean (Parkia speciosa Hassk) pods (BP).
Is Fatimah
doaj   +1 more source

Microorganism adhesion using silicon dioxide: An experimental study

Heliyon, 2020
In this study, spectrophotometry was used to measure changes in the absorbance properties of yeast, Gram-positive, and Gram-negative bacteria after their attachment to silicon dioxide microparticles (silica).
Roberts Lozins, Tūrs Selga, Dzintars Ozoliņš   +2 more
doaj   +1 more source

Optical Dynamics at the Au/ZnPc Interfaces [PDF]

Materials Research, 2020
In this work, the optical dynamics and the structural properties of the zinc phthalocyanine which are coated onto 150 nm thick Au substrates are studied by the X-ray diffraction and optical spectrophotometry techniques.
A. F. Qasrawi, Hadeel M. Zyoud
doaj   +2 more sources

Optical and infrared spectrophotometry of 18 Markarian galaxies [PDF]

, 1976
Slit spectra, spectrophotometric scans and infrared broad band observations are presented. Eight of the program galaxies can be classified as Seyfert galaxies.
Becklin, E. E., Neugebauer, G., Oke, J. B., Searle, L.   +3 more
core   +1 more source

Transmission enhancement through square coaxial apertures arrays in metallic film: when leaky modes filter infrared light

, 2014
We consider arrays of square coaxial apertures in a gold layer and study their diffractive behavior in the far infrared region. These structures exhibit a resonant transmission enhancement that is used to design tunable bandpass filters.
Bedu, Frédéric, Commandré, Mireille, Dallaporta, Hervé, Demésy, Guillaume, Nicolet, André, Roux, Laurent, Tisserand, Stéphane, Vial, Benjamin, Zolla, Frédéric   +8 more
core   +3 more sources

Enhanced Nitric Oxide Electroreduction to Ammonia via Modulating Spin‐Polarization of Fe Single‐Atom Catalysts

Advanced Functional Materials, EarlyView.
A strategic spin‐polarization suppression in Fe single‐atom catalysts is proposed to enhance electrocatalytic reduction of NO to NH3. Employing a top‐down electrospinning strategy, self‐supported FeSAC with Fe‐N3S1 coordination structure and spin‐state transition is engineered from high‐spin to low‐spin.
Jialing Song, Ziqi Wei, Lupeng Han, Zhenlin Wang, Chenghao Fan, Donglin Han, Chunwei Dong, Haiyan Duan, Xiyang Wang, Sam Fong Yau Li, Eslam Hamed, Ming Xie, Emiliano Cortés, Dengsong Zhang   +13 more
wiley   +1 more source

A Fluorescent and Colorimetric Chemosensor for Hg2+ Based on Rhodamine 6G With a Two-Step Reaction Mechanism

Frontiers in Chemistry, 2020
A fluorescent and colorimetric chemosensor L based on rhodamine 6G was designed, synthesized, and characterized. Based on a two-step reaction, the chemosensor L effectively recognized Hg2+.
Cui-Bing Bai, Cui-Bing Bai, Wei-Gang Wang, Jie Zhang, Chang Wang, Chang Wang, Rui Qiao, Rui Qiao, Biao Wei, Biao Wei, Lin Zhang, Lin Zhang, Shui-Sheng Chen, Shui-Sheng Chen, Song Yang, Song Yang   +15 more
doaj   +1 more source

Co‐Delivery of Ca‐MOF and Mg‐MOF Using Nanoengineered Hydrogels to Promote In Situ Mineralization and Bone Defect Repair: In Vitro and In Vivo Analysis

Advanced Healthcare Materials, EarlyView.
Metal‐organic frameworks (MOFs) have been synthesized using calcium (Ca‐MOF), magnesium (Mg‐MOF), and as hybrids (Ca/Mg‐MOF) for bone healing applications. MOFs are integrated into hydrogel polymer networks for injectable, sprayable, and coating applications.
Cho‐E Choi, Chao Liang, Yasmeen Shamiya, Sang Jin Lee, Arghya Paul   +4 more
wiley   +1 more source

SIMPLE AND RAPID METHOD FOR ISOLATING ANTHOCYANIN FROM WILD MULBERRY (MORUS NIGRA L.)

Jurnal Farmasi Sains dan Komunitas, 2019
Wild mulberry (Morus nigra L.) is a kind of berries that has a high content of anthocyanin pigment. Anthocyanin is a natural pigment that has good biological activity so that widely be used as both food and drug ingredients.
Rollando Rollando, Christopher Daniel Kurniawan, Ririn Nurdiani, Sophia Yusnita Wahyu Timur, Paulina Genoveva Moza   +4 more
doaj   +1 more source

Tunicate‐Inspired Carboxymethyl Cellulose Hydrogel Filler for Treating Age‐Associated Vocal Fold Atrophy

Advanced Healthcare Materials, EarlyView.
The pyrogallol‐conjugated carboxymethylcellulose (CMC‐PG) hydrogel is applicated as a filler for the treatment of presbylaryngis, a vocal fold atrophy. CMC‐PG provides a bulking effect to the vocal folds. CMC‐PG is readily injectable and tissue adhesive, enabling sustained release of growth factor over long period.
Jihoon Jeon, Sang‐Yoon Han, Ji Suk Choi, Soojeong Choi, Dongkyun Shin, Mikyung Shin, Seong Keun Kwon, Seung‐Woo Cho   +7 more
wiley   +1 more source