44 Result(s)
within
Miguel de la Guardia
-
Article
Open AccessGreen synthesis, characterization, and biological evaluation of gold and silver nanoparticles using Mentha spicata essential oil
Green synthesis of bioactive nanoparticles (NPs) is getting more attractive in various fields of science including the food industry. This study investigates the green synthesizing and characterization of gold...
-
Article
Removal of Hexavalent Chromium from Water Using a Biomaterial Synthesized from Tannins and Chrome Shaving Proteins Hydrolysate
A new biomaterial called CT-PH was prepared by reacting chestnut tannin (CT) with proteins hydrolysate (PH) from wet blue chrome shavings (WBCS), for the purpose of removing hexavalent chromium Cr(VI) from wat...
-
Article
Label-free electrochemical microfluidic biosensors: futuristic point-of-care analytical devices for monitoring diseases
The integration of microfluidics with electrochemical analysis has resulted in the development of single miniaturized detection systems, which allows the precise control of sample volume with multianalyte dete...
-
Article
Preparation and characterization of novel microstructure cellulosic sawdust material: application as potential adsorbent for wastewater treatment
The present work investigated the feasibility to develop of a new microstructure of a material from date palm sawdust in order to improve its adsorption properties. The preparation of the material consists of ...
-
Article
Ethambutol-Loaded Solid Lipid Nanoparticles as Dry Powder Inhalable Formulation for Tuberculosis Therapy
Ethambutol hydrocloride (EMB) is an anti-tuberculosis drug, which is commonly used as a protection agent against of unrecognized resistance to other drugs employed to treat this disease. Since oral form of EMB...
-
Chapter
Teaching Green Analytical and Synthesis Chemistry: Performing Laboratory Experiments in a Greener Way
Our future challenges in resource, environmental and societal sustainability demand efficient and benign-by-design scientific technologies for working with chemical processes and products. In this chapter, we ...
-
Chapter
Smart Sorption Materials in Green Analytical Chemistry
The use of smart materials as alternative sorption materials for their use in greening sample preparation has been reviewed. It has been taking into consideration recent advances on the use of natural products...
-
Article
Diagnosis of hepatitis via nanomaterial-based electrochemical, optical or piezoelectrical biosensors: a review on recent advancements
This review (with 145 refs.) summarizes the progress made in the past years in the field of nanomaterial based rapid detection of hepatitis viruses. Following an introduction into the field (with subsection on...
-
Article
Development of immunosorbents for the analysis of forchlorfenuron in fruit juices by ion mobility spectrometry
The advantages of using smart materials as immunosorbents in the analysis of complex matrices by ion mobility spectrometry (IMS) have been highlighted in this study. A novel analytical method has been proposed...
-
Article
Advances in nanomaterial based optical biosensing and bioimaging of apoptosis via caspase-3 activity: a review
Caspase-3 plays a vital role in intrinsic and extrinsic pathways of programed cell death and in cell proliferation. Its detection is an important tool for early detection of some cancers and apoptosis-related ...
-
Article
Identification and characterization of the new psychoactive substance 3-fluoroethamphetamine in seized material
An amphetamine-type new psychoactive substance was identified in a fine white yellowish powder from a seizure control held in Spain in July 2017.
-
Article
Evaluation of Data Mining Strategies for Classification of Black Tea Based on Image-Based Features
In this study, a new procedure based on computer vision was developed for qualitative classification of black tea. Images of 240 samples from four different classes of black tea, including Orange Pekoe (OP), F...
-
Article
A green analytical chemistry approach for lipid extraction: computation methods in the selection of green solvents as alternative to hexane
There is a great interest in finding alternatives and green solvents in extraction processes to replace petroleum based solvents. In order to investigate these possibilities, computational methods, as Hansen s...
-
Article
Use of a versatile, easy, and rapid atmospheric monitor (VERAM) passive samplers for pesticide determination in continental waters
The versatile, easy, and rapid atmospheric monitor (VERAM), a passive sampler device widely used for air monitoring, was evaluated as passive sampler for the determination of 23 pesticides in water. Gas chroma...
-
Article
Highly selective solid-phase extraction sorbents for chloramphenicol determination in food and urine by ion mobility spectrometry
Different highly selective sorbents have been evaluated for the treatment of food and biological samples to determine chloramphenicol residues by ion mobility spectrometry (IMS). Combination of a selective sol...
-
Article
Determination of 3,4-methylenedioxypyrovalerone (MDPV) in oral and nasal fluids by ion mobility spectrometry
A fast and sensitive methodology has been developed for the evaluation of the 3,4-methylenedioxypyrovalerone (MDPV) consumed. Based on ion mobility spectrometry (IMS), MDPV was directly determined in nasal flu...
-
Article
Detection of tetrahydrocannabinol residues on hands by ion-mobility spectrometry (IMS). Correlation of IMS data with saliva analysis
Ion-mobility spectroscopy (IMS) was evaluated as a high-throughput, cheap, and efficient analytical tool for detecting residues of tetrahydrocannabinol (THC) on hands. Regarding the usefulness of hand residues...
-
Article
Direct determination of major components in human diets and baby foods
A fast method has been developed for the determination of fat, proteins, carbohydrates, and energy value in baby food, infant fast food, and canteen menus, using near-infrared (NIR) and mid-infrared (MIR) spec...
-
Article
Improving the performance of hollow waveguide-based infrared gas sensors via tailored chemometrics
The use of chemometrics in order to improve the molecular selectivity of infrared (IR) spectra has been evaluated using classic least squares (CLS), partial least squares (PLS), science-based calibration (SBC)...
-
Article
Green analytical methods
