Results 31 to 40 of about 7,349 (250)
A química analítica aplicada aos estudos de pigmentos rupestres: uma revisão [PDF]
Química Nova, 2023 Instrumental advances have been employed in the study of archeological remains such as prehistoric rupestrians paintings with the objective of chemically characterizing them in order to reconstruct the cultural technologies of a prehistoric human group ...
Benedito B. Farias Filho +5 more
doaj +1 more source
Multielement analysis of soils: a proposal involving a portable X-ray fluorescence equipment
Semina: Ciências Exatas e Tecnológicas, 2014 Portable instruments are excellent choices to perform precision agriculture since they allow in situ information about soil composition. In such a way, results are obtained quickly and inputs can be applied promptly, depending on the local soil ...
Juliana Terra +3 more
doaj +1 more source
Application of Portable X-ray Fluorescence Spectrometer in the Analysis of Rock Samples
Yankuang ceshi, 2018 Portable X-ray Fluorescence Spectrometer (PXRF) is often used in the laboratory and the field because it is a portable, high-efficiency and non-destructive piece of equipment.
ZHOU Shu-guang +4 more
doaj +1 more source
Portable X-ray fluorescence (pXRF) applications in tropical Soil Science
Ciência e AgrotecnologiaThe X-ray fluorescence (XRF) is an analytical technique for determination of elemental composition of different materials. In soils, the XRF has many pedological, environmental and agronomic applications, mainly after the emergence of portable equipments
Bruno Teixeira Ribeiro +3 more
doaj +1 more source
Portable Molecularly Imprinted Polymer Sensor for Rapid Swab‐Based Detection of Norovirus
Advanced Healthcare Materials, EarlyView.This work reports a rapid, portable smartphone‐based sensor capable of detecting four norovirus genotypes from swab samples within 15 min. Sensor selectivity was validated through evaluation against four common live viruses. The swab‐based sampling process enabled simple sample preparation combined with the compact detection system, supporting use of ...
Amy Dann +13 more
wiley +1 more source
Advanced Materials, EarlyView.A thermally adaptive plasmonic metasurface, functionalized with poly(N‐isopropylacrylamide) (PNIPAM) and anti‐CD63 antibodies, enables precise, on‐demand capture and release of extracellular vesicles (EVs). Delivering high recovery, improved purity, and intact vesicle structure, the platform offers a versatile, label‐free solution for real‐time EV ...
Beyza Nur Kucuk +7 more
wiley +1 more source
Ratiometric Mycotoxin Detection in Living Plants With Dual‐Emissive Nanosensors
Advanced Materials, EarlyView.A minimally invasive microneedle patch integrates carbon dot‐embedded metal–organic frameworks as nanosensors to detect a key fungal toxin in living plants. The nanosensor produces a ratiometric fluorescence signal that enables early, non‐destructive diagnosis of fungal infection before visible symptoms, offering a new biomaterials‐based strategy for ...
Yuliang Li +9 more
wiley +1 more source
Recent Advances in Ferrite‐Based Materials for Biomedical Applications: A Comprehensive Review
Advanced Materials, EarlyView.Ferrite nanoplatforms are presented as tunable biomedical materials in which synthesis control, cation engineering, defect/morphology regulation, and surface functionalization govern structure–property–bioactivity relationships. These design strategies enable multifunctional applications including MRI contrast, magnetic hyperthermia, targeted drug ...
Pramod D. Mhase +6 more
wiley +1 more source
Applied Computing and Geosciences, 2021 Spatial domains defining either geological models or mineral estimation envelopes are among the few components of the mining life cycle that are not quantitatively assessed to communicate uncertainty or error in mineral resource projects. Recent work has
Scott McManus +3 more
doaj +1 more source
Advanced Materials Technologies, EarlyView.Laser‐assisted synthesis enables rapid (within 1 h) and high‐yield (≥90%) production of Co‐MOFs with mesoporous structures, tunable magnetic and optical properties, and efficient adsorption of N2, CH4, and CO2 for low‐energy gas separation. DFT calculations elucidate the electronic structure and adsorption behavior.
Saliha Mutlu +10 more
wiley +1 more source