Refine
H-BRS Bibliography
- yes (68)
Departments, institutes and facilities
- Fachbereich Angewandte Naturwissenschaften (68) (remove)
Document Type
- Article (39)
- Conference Object (10)
- Book (monograph, edited volume) (5)
- Report (4)
- Doctoral Thesis (3)
- Part of a Book (2)
- Preprint (2)
- Bachelor Thesis (1)
- Conference Proceedings (1)
- Master's Thesis (1)
Year of publication
- 2019 (68) (remove)
Keywords
- lignin (4)
- Lignin (3)
- Aminoacylase (2)
- Chemie (2)
- Hyperspectral image (2)
- Lehrbuch (2)
- Mass spectrometry (2)
- Microorganisms (2)
- Miscanthus (2)
- Raman microscopy (2)
- antimicrobial activity (2)
- bone tissue engineering (2)
- chemometrics (2)
- image fusion (2)
- inborn error of metabolism (2)
- ketone body (2)
- metabolic acidosis (2)
- metabolic decompensation (2)
- organic aciduria (2)
- pansharpening (2)
- ACAT1 (1)
- Accuracy (1)
- Acetylcholinesterase (AChE) (1)
- Active site mapping (1)
- Acylpeptide hydrolase (1)
- Affinity proteomics (1)
- Analytical pyrolysis (1)
- Analytik (1)
- Analytik Praktikum (1)
- Analytische Chemie (1)
- Anoplophora glabripennis (1)
- Antibodies* (1)
- Antioxidant activity (1)
- Antioxidant assays (1)
- Assay development (1)
- Automated PyMS (1)
- BLAST (1)
- Basiswerkstoff (1)
- Biomass (1)
- Blood glucose meter (1)
- Bond strength (1)
- Bulk fill (1)
- Canola (1)
- Carbapenem (1)
- Cathepsin B (1)
- Chemical imaging (1)
- Chemometrics (1)
- Chromatographie (1)
- Crystallinity (1)
- Curie-point pyrolysis (1)
- Cytokine-induced killer (CIK) cells (1)
- DNA typing (1)
- Degraded DNA (1)
- Discriminant analysis (1)
- Draw ratio (1)
- Einführung (1)
- Enzyme activity assays (1)
- Ernte (1)
- European horse chestnut (1)
- Extrusion blow molding (1)
- FOXP3 (1)
- Fachrechnen (1)
- Flow direction (1)
- Fluorescence-quenched substrates (1)
- Folin–Ciocalteu assay (1)
- Forensic genomics (1)
- Furnace pyrolyzer (1)
- Genotyp (1)
- Geruchssinn (1)
- HMGCL (1)
- HSQC NMR (1)
- Identification (1)
- Immunology* (1)
- K/BxN (1)
- Ketogenesis (1)
- Ketolysis (1)
- Kraft lignin (1)
- Kriminalistik (1)
- LC-MS/MS (1)
- Ligand -Receptor Interactions* (1)
- Light curing (1)
- Light measurement (1)
- Lignocellulose feedstock (1)
- Magnetic resonance imaging (MRI) (1)
- Massenspektrometrie (1)
- Miscanthus x giganteus (1)
- Mold temperature (1)
- Multimodal hyperspectral data (1)
- Multivariate analysis (1)
- NMR-Spektroskopie (1)
- Nanofibers (1)
- Naturkautschuk (1)
- Neurometabolic disease (1)
- Next Generation Sequencing (NGS) (1)
- Non-covalent interaction MS* (1)
- Organic aciduria (1)
- Organosolv lignin (1)
- Organosolv-Verfahren (1)
- Pattern recognition (1)
- Paulownia (1)
- Peptidomimetic inhibitors (1)
- Pharmacogenetics (1)
- Phenolic acids (1)
- Plasmid DNA (pBR322) (1)
- Polymers (1)
- Polymorphism (1)
- Poultry meat (1)
- Principal Components Analysis (1)
- Principal component analysis (1)
- Probabilistic methods (1)
- Protein complex analysis (1)
- Prunus avium L. (1)
- Py-EGA-MS (1)
- Pyrolysis mass spectrometry (PyMS) (1)
- Pyrolysis-evolved gas analysis-mass spectrometry (1)
- Qualitative analysis (1)
- Raman spectroscopy (1)
- Raman-microspectroscopy (1)
- Rapeseed pomace (1)
- Research reproducibility and replicability (1)
- Resins (1)
- Rheometer (1)
- Short tandem repeat (STR) (1)
- Silphium (1)
- Sinapine (1)
- Spoilage (1)
- Spoilage bacteria (1)
- Spürhund (1)
- Statistical methods (1)
- Storage modulus (1)
- Stöchiometrie (1)
- Substrate specificity (1)
- Supervised classification (1)
- Support vector machines (1)
- TD-GC/MS (1)
- Targeted mass spectrometry (1)
- Telogen hair (1)
- Therapeutic antibodies* (1)
- Total phenol content (1)
- UV spectrum (1)
- Valproic acid (1)
- Vibrational microspectroscopy (1)
- Volatile organic compounds (1)
- Vulkanisation (1)
- Western Africa (1)
- active packaging (1)
- additive (1)
- adoptive cell transfer (1)
- agarose (1)
- amorphous 2D polymer (1)
- angiogenesis (1)
- antimicrobial (1)
- antioxidant (1)
- antiradical activity (1)
- arthritis (1)
- beta-ketothiolase (1)
- biobased (1)
- biocomposite (1)
- biomass (1)
- brightfield microscopy (1)
- brilliant green (1)
- bulk and local viscoelastic properties (1)
- cancer (1)
- cell harvesting (1)
- cell migration (1)
- chitosan (1)
- coefficient of thermal expansion (1)
- composites (1)
- crystal violet (1)
- data base search (1)
- demethylation (1)
- drug release (1)
- endothelial cells (1)
- energy deposition (1)
- epitope mapping (1)
- extraction (1)
- extrusion blow molding (1)
- food loss (1)
- fruit quality (1)
- genotype (1)
- helical drilling (1)
- hydrogel (1)
- hydroxyapatite (1)
- hydroxypropylmethylcellulose (1)
- hyperammonemia (1)
- hypoglycemia (1)
- immunhistochemistry (1)
- immunotherapy (1)
- isoleucine (1)
- leucine (1)
- lignocellulosic feedstock (1)
- low-input crops (1)
- mechanical thinning (1)
- micro processing (1)
- microindentation (1)
- molecular dynamics (1)
- monolignol ratio (1)
- multidimensional (1)
- multiresolution analysis (1)
- multivariate data analysis (1)
- organosolv (1)
- osteogenesis (1)
- pathogenic microorganisms (1)
- peptide sequencing (1)
- polyphenols (1)
- polysaccharide (1)
- polytunnel (1)
- polyurethane coatings (1)
- precision (1)
- principal component analysis (1)
- proanthocyanidins (1)
- processing-structure-property relationship (1)
- prototype apparatus (1)
- rheumatoid arthritis (1)
- ring-size statistics (1)
- ripening (1)
- scanning tunnelling microscopy (1)
- scratch assay (1)
- seed coat (1)
- short-range correlation (1)
- size exclusion chromatography (1)
- stem cells (1)
- sustainability (1)
- temporomandibular joint (1)
- triphenylmethane dyes (1)
- ultrashort pulse laser (1)
- wound healing assay (1)
- yield (1)
- µCT (1)
- ß-OHB (1)
- ß-hydroxybutyrate (1)
Bioinspired stem cell-based hard tissue engineering includes numerous aspects: The synthesis and fabrication of appropriate scaffold materials, their analytical characterization, and guided osteogenesis using the sustained release of osteoinducing and/or osteoconducting drugs for mesenchymal stem cell differentiation, growth, and proliferation. Here, the effect of silicon- and silicate-containing materials on osteogenesis at the molecular level has been a particular focus within the last decade. This review summarizes recently published scientific results, including material developments and analysis, with a special focus on silicon hybrid bone composites. First, the sources, bioavailability, and functions of silicon on various tissues are discussed. The second focus is on the effects of calcium-silicate biomineralization and corresponding analytical methods in investigating osteogenesis and bone formation. Finally, recent developments in the manufacturing of Si-containing scaffolds are discussed, including in vitro and in vivo studies, as well as recently filed patents that focus on the influence of silicon on hard tissue formation.
Mass Spectrometry: Pyrolysis
(2019)
Miscanthus x giganteus Stem Versus Leaf-Derived Lignins Differing in Monolignol Ratio and Linkage
(2019)
As a renewable, Miscanthus offers numerous advantages such as high photosynthesis activity (as a C4 plant) and an exceptional CO2 fixation rate. These properties make Miscanthus very attractive for industrial exploitation, such as lignin generation. In this paper, we present a systematic study analyzing the correlation of the lignin structure with the Miscanthus genotype and plant portion (stem versus leaf). Specifically, the ratio of the three monolignols and corresponding building blocks as well as the linkages formed between the units have been studied. The lignin amount has been determined for M. x giganteus (Gig17, Gig34, Gig35), M. nagara (NagG10), M. sinensis (Sin2), and M. robustus (Rob4) harvested at different time points (September, December, and April). The influence of the Miscanthus genotype and plant component (leaf vs. stem) has been studied to develop corresponding structure-property relationships (i.e., correlations in molecular weight, polydispersity, and decomposition temperature). Lignin isolation was performed using non-catalyzed organosolv pulping and the structure analysis includes compositional analysis, Fourier transform infradred (FTIR), ultraviolet/visible (UV-Vis), hetero-nuclear single quantum correlation nuclear magnetic resonsnce (HSQC-NMR), thermogravimetric analysis (TGA), and pyrolysis gaschromatography/mass spectrometry (GC/MS). Structural differences were found for stem and leaf-derived lignins. Compared to beech wood lignins, Miscanthus lignins possess lower molecular weight and narrow polydispersities (<1.5 Miscanthus vs. >2.5 beech) corresponding to improved homogeneity. In addition to conventional univariate analysis of FTIR spectra, multivariate chemometrics revealed distinct differences for aromatic in-plane deformations of stem versus leaf-derived lignins. These results emphasize the potential of Miscanthus as a low-input resource and a Miscanthus-derived lignin as promising agricultural feedstock.
Analytical pyrolysis
(2019)
Analytical pyrolysis deals with the structural identification and quantitation of pyrolysis products with the ultimate aim of establishing the identity of the original material and the mechanisms of its thermal decomposition. The pyrolytic process is carried out in a pyrolyzer interfaced with analytical instrumentation such as gas chromatography (GC), mass spectrometry (MS), gas chromatography coupled with mass spectrometry (GC/MS), or with Fourier-transform infrared spectroscopy (GC/FTIR). By measurement and identification of pyrolysis products, the molecular composition of the original sample can often be reconstructed.This book is the outcome of contributions by experts in the field of pyrolysis and includes applications of the analytical pyrolysis-GC/MS to characterize the structure of synthetic organic polymers and lignocellulosic materials as well as cellulosic pulps and isolated lignins, solid wood, waste particle board, and bio-oil. The thermal degradation of cellulose and biomass is examined by scanning electron micrography, FTIR spectroscopy, thermogravimetry (TG), differential thermal analysis, and TG/MS. The calorimetric determination of high heating values of different raw biomass, plastic waste, and biomass/plastic waste mixtures and their by-products resulting from pyrolysis is described.
Miscanthus bietet als nachwachsende Industrie- und Energiepflanze zahlreiche Vorteile, die neben den direkten landwirtschaftlichen Anwendungen wie Verbrennung und Tiereinstreu auch eine stoffliche Nutzung im chemischen Bereich zulassen. Als C4-Pflanze mit gesteigerter Photosynthese-Aktivität weist Miscanthus zudem eine hohe CO2-Fixierrate auf. Aufgrund des geringen Kultivierungsaufwandes sowie der hohen Erträge bietet sich Miscanthus als ausgesprochen attraktiver Rohstoff für die Produktion erneuerbarer Kraftstoffe und Chemikalien an, welche mittels thermo-chemischer Umwandlung gewonnen werden.
Chemie ist viel einfacher, als es häufig heißt. Dieses Buch soll dazu beitragen, ihr Interesse an diesem Fach zu wecken oder zu vertiefen. Alle grundlegenden Prinzipien der Chemie werden nachvollziehbar dargestellt. Querbezüge und Zusammenhänge zwischen den verschiedenen Fachgebieten werden gezeigt. Sie werden keine Formel finden, deren Herleitung Sie nicht nachvollziehen können. Am Ende fast jeden Kapitels gibt es Übungsaufgaben. Ausführliche Lösungen gibt es natürlich auch. Das sollte nicht nur für die Prüfungen der ersten Semester reichen, sondern Ihnen auch ein sicheres Fundament für Ihr weiteres Studium bieten.
The application of Raman and infrared (IR) microspectroscopy is leading to hyperspectral data containing complementary information concerning the molecular composition of a sample. The classification of hyperspectral data from the individual spectroscopic approaches is already state-of-the-art in several fields of research. However, more complex structured samples and difficult measuring conditions might affect the accuracy of classification results negatively and could make a successful classification of the sample components challenging. This contribution presents a comprehensive comparison in supervised pixel classification of hyperspectral microscopic images, proving that a combined approach of Raman and IR microspectroscopy has a high potential to improve classification rates by a meaningful extension of the feature space. It shows that the complementary information in spatially co-registered hyperspectral images of polymer samples can be accessed using different feature extraction methods and, once fused on the feature-level, is in general more accurately classifiable in a pattern recognition task than the corresponding classification results for data derived from the individual spectroscopic approaches.