Results 91 to 100 of about 32,643 (235)

DETERMINACIÓN DE FENOLES TOTALES EN DERIVADOS LÍGNICOS OBTENIDOS DEL “LICOR NEGRO” COMO ALTERNATIVA DE PRODUCCIÓN // DETERMINATION OF TOTAL PHENOL DERIVATIVES OBTAINED FROM LIGNIN "BLACK LIQUOR" AS ALTERNATIVE TO PRODUCTION

Publicaciones en Ciencias y Tecnología, 2015
Lignin is an industrial waste being worthless in papermaking byproduct of black liquor obtained from the pulping process in some Venezuelan plants.
María José López Villalobos, Irama Isabel Piña Sáenz, Yakelin Abou Masoud, Fredy José Ysambertt   +3 more
doaj  

Synthesis of Molecularly Imprinted Polymers for Selective Extraction Followed by Solid Phase Determination of Metformin in Pharmaceutical Preparation and in Human Serum

مجلة بغداد للعلوم
This paper demonstrates that the synthesising and storage of molecular-imprinted polymers (MIP) at room temperature using bulk polymerisation of Metformin (Met) is characterised by high sensitivity, reduced costs, increased stability, and extended life.
Rana A. Kamal Aldeen, Yehya K. Al-Bayati
doaj   +1 more source

Magnetic Pinecone Biochar‐Activated Peroxymonosulfate for Efficient Sulfamethoxazole Degradation: Performance, Mechanism, and Toxicity Analysis

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study successfully prepared magnetic iron/cobalt codoped biochar catalyst (CFSBC) using a one‐step calcination method. The morphology and structure of the material were systematically characterized using SEM, XRD, FTIR, TEM, BET, Raman, VSM, and XPS techniques. The effects of key parameters such as catalyst dosage, peroxymonosulfate (PMS)
Jianhua Ni, Haoyuan Zheng, Guishang Sheng, Xi Zhang   +3 more
wiley   +1 more source

High Resolution, Differential, Near-infrared Transmission Spectroscopy of GJ 1214b

, 2011
The nearby star GJ 1214 hosts a planet intermediate in radius and mass between Earth and Neptune, resulting in some uncertainty as to its nature. We have observed this planet, GJ 1214b, during transit with the high-resolution, near-infrared NIRSPEC ...
Andrae, Barman, Barman, Berta, Borucki, Brad M. S. Hansen, Carter, Claret, Croll, Croll, Deming, Donati, Désert, Hinkle, I. J. M. Crossfield, Irwin, Joliffe, Lord, Madhusudhan, Mandel, Mandell, Miller-Ricci, Miller-Ricci, Nettelmann, Redfield, Rogers, Rogers, Rojas-Ayala, Sing, Travis Barman, Zahnle   +30 more
core   +1 more source

Polydopamine Coating in Trabecular Bone‐Like Scaffolds With Strontium‐Substituted Nanohydroxyapatite for Bone Tissue Engineering

Journal of Applied Polymer Science, EarlyView.
PLA and strontium‐substituted hydroxyapatite filaments were used in 3D printing to fabricate a trabecular‐inspired scaffold. The scaffold was functionalized with a polydopamine coating. Characterization revealed enhanced surface properties and mechanical performance, supporting its potential application in bone tissue engineering.
Adones Almeida Rocha, Vinicius Oliveira dos Santos, Alexandre Malta Rossi, Anna Carla Araujo, Rossana Mara da Silva Moreira Thiré   +4 more
wiley   +1 more source

A Spitzer IRS Study of Debris Disks Around Planet-Host Stars

, 2010
Since giant planets scatter planetesimals within a few tidal radii of their orbits, the locations of existing planetesimal belts indicate regions where giant planet formation failed in bygone protostellar disks.
Beichman, Beichman, Beichman, Bertone, Bessell, Bryden, Bryden, Bryden, Butler, C. A. Beichman, Carpenter, Chen, Chen, Cochran, Cutri, Dodson-Robinson, Fischer, Fischer, Geoffrey Bryden, Goldreich, Hauschildt, Hillenbrand, Høg, Ida, John M. Carpenter, Johnson, Johnson, Kurucz, Kóspál, Lawler, Moro-Martín, Peletier, Perryman, Quillen, Sarah E. Dodson-Robinson, Sato, Su, Tanner, Trilling, Valenti, Wright, Wright   +41 more
core   +1 more source

Assessment of antimicrobial activity and methyl orange dye removal by Klebsiella pneumoniae-mediated silver nanoparticles

Green Processing and Synthesis
The synthesis of silver nanoparticles (AgNPs) using bacteria is more interesting because of their non-toxic, biocompatible, environmentally friendly, and cost-effectiveness. In the present research work, AgNPs were synthesized by Klebsiella pneumoniae in
Desai Reema, Yadav Virendra Kumar, Patel Bhakti, Rami Esha, Almoallim Hesham Saleh, Ansari Mohammad Javed, Choudhary Nisha, Sahoo Dipak Kumar, Patel Ashish   +8 more
doaj   +1 more source

A New Era for Using Natural Pigments: The Case of the C50 Carotenoid Called Bacterioruberin

Biotechnology and Applied Biochemistry, EarlyView.
ABSTRACT Haloarchaea are extremophilic microorganisms belonging to the Archaea domain that require high salt concentrations to live, thus inhabiting ecosystems like salty ponds, salty marshes, or extremely salty lagoons. They are more abundant and widely distributed worldwide than initially expected.
Micaela Giani, Elena Valdés, José María Miralles‐Robledillo, Guillermo Martínez, Carmen Pire, Rosa María Martínez‐Espinosa   +5 more
wiley   +1 more source

Fiber composition of 190 novel energy cane genotypes and their potential for biorefinery applications

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Energy cane has emerged as a promising feedstock for biorefineries due to its high fiber yield and potential for diversified bioproducts. This study evaluated the fiber composition of 190 energy cane genotypes and assessed their theoretical potential for producing second‐generation (2G) ethanol, polyethylene, and xylitol.
Pietro Sica, Bruna H. Ogata, Laysa Maciel Lewandowski Meira Prado, Gabriela Maria Lima Leite de Almeida, Marcos Landell, Mauro Alexandre Xavier, Antonio Sampaio Baptista   +6 more
wiley   +1 more source

A Review on Applications and Challenges of Fullerenes in Proton Exchange Membranes

Carbon Energy, EarlyView.
This review is devoted to the analysis of the use of fullerenes and their functionalized derivatives to improve the efficiency of proton exchange membranes. The synthetic methods, structure, properties, and proton transfer mechanisms of fullerene‐containing membranes are discussed in detail. Promising areas of scientific research are discussed, and key
Ruslan Usmanov, Alexander Pozdnyakov
wiley   +1 more source