Agnes Weth
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View article: Fs-Laser-Induced Micro- and Nanostructures on Polycarbonate and Cellulose Acetate Butyrate for Cell Alignment
Fs-Laser-Induced Micro- and Nanostructures on Polycarbonate and Cellulose Acetate Butyrate for Cell Alignment Open
Laser-generated structures have a huge potential to induce an alignment of biological cells, which may be important for various fields in medicine and biotechnology. We describe the formation of fs-laser-induced micro- and nanostructures f…
View article: Guidance of Osteoblast Migration Using Femtosecond Laser-Induced Hierarchical Structures
Guidance of Osteoblast Migration Using Femtosecond Laser-Induced Hierarchical Structures Open
The adhesion and alignment of osteoblasts and fibroblasts on titanium alloy (Ti-6Al-4V) surfaces can be adjusted over a wide range by femtosecond laser treatment and anodization. The great differences in cell behavior between different exp…
View article: Oriented artificial nanofibers and laser induced periodic surface structures as substrates for Schwann cells alignment
Oriented artificial nanofibers and laser induced periodic surface structures as substrates for Schwann cells alignment Open
People with injuries to the peripheral nervous system suffer from paralysis of the facial muscles, fingers and hands or toes and feet, often for the rest of their lives, due to its poor functional regeneration. Therefore, to improve patien…
View article: Oriented artificial nanofibers and laser induced periodic surface structures as substrates for Schwann cells alignment
Oriented artificial nanofibers and laser induced periodic surface structures as substrates for Schwann cells alignment Open
People with injuries to the peripheral nervous system, due to its poor functional regeneration, suffer from paralysis of the facial muscles, fingers and hands, or toes and feet, often for the rest of their lives. Therefore, to improve pati…
View article: Oriented artificial nanofibers and laser induced periodic surface structures as substrates for Schwann cells alignment
Oriented artificial nanofibers and laser induced periodic surface structures as substrates for Schwann cells alignment Open
People with injuries to the peripheral nervous system, due to its poor functional regeneration, suffer from paralysis of the facial muscles, fingers and hands, or toes and feet, often for the rest of their lives. Therefore, to improve pati…
View article: Oriented artificial nanofibers and laser induced periodic surface structures as substrates for Schwann cells alignment
Oriented artificial nanofibers and laser induced periodic surface structures as substrates for Schwann cells alignment Open
People with injuries to the peripheral nervous system, due to its poor functional regeneration, suffer from paralysis of the facial muscles, fingers and hands, or toes and feet, often for the rest of their lives. Therefore, to improve pati…
View article: Hindrance of osteoblast cell adhesion on titanium by surface nanostructuring
Hindrance of osteoblast cell adhesion on titanium by surface nanostructuring Open
The surfaces of Ti Grade 2 plates were covered with glancing angle deposited (GLAD) Ti nanorods, which were subsequently anodized. The anodization step had an impact on the morphology and composition of the Ti GLAD nanorods, as revealed by…
View article: A simple and cheap aerosol penetrometer for filter testing using an electronic cigarette.
A simple and cheap aerosol penetrometer for filter testing using an electronic cigarette. Open
Background: During the coronavirus disease 2019 (COVID-19) pandemic face masks grew in importance as their use by the general population was recommended by health officials in order to minimize the risk of infection and prevent further spr…
View article: A simple and cheap aerosol penetrometer for filter testing using an electronic cigarette.
A simple and cheap aerosol penetrometer for filter testing using an electronic cigarette. Open
Background: During the coronavirus disease 2019 (COVID-19) pandemic face masks grew in importance as their use by the general population was recommended by health officials in order to minimize the risk of infection and prevent further spr…
View article: A simple and cheap aerosol penetrometer for filter testing using an electronic cigarette.
A simple and cheap aerosol penetrometer for filter testing using an electronic cigarette. Open
Background: During the coronavirus disease 2019 (COVID-19) pandemic face masks grew in importance as their use by the general population was recommended by health officials in order to minimize the risk of infection and prevent further sp…
View article: A Simple and Cheap Aerosol Penetrometer for Filter Testing Using an Electronic Cigarette
A Simple and Cheap Aerosol Penetrometer for Filter Testing Using an Electronic Cigarette Open
During the COVID-19 pandemic face masks grew in importance as their use by the general population was recommended by health officials in order to minimize the risk of infection and prevent further spread of the virus. To ensure health prot…
View article: Spectrochemical Analytical Characterisation of Particulate Matter Emissions Generated from In-Use Diesel Engine Vehicles
Spectrochemical Analytical Characterisation of Particulate Matter Emissions Generated from In-Use Diesel Engine Vehicles Open
Pollutant emissions from vehicles form major sources of metallic nanoparticles entering the environment and surrounding atmosphere. In this research, we spectrochemically analyse the chemical composition of particle matter emissions from i…
View article: Impact of Femtosecond Laser Treatment Accompanied with Anodization of Titanium Alloy on Fibroblast Cell Growth
Impact of Femtosecond Laser Treatment Accompanied with Anodization of Titanium Alloy on Fibroblast Cell Growth Open
Herein, Ti6Al4V alloy is surface modified by femtosecond laser ablation. The microstructure image obtained by secondary electron microscopy reveals a combination of micrometer spikes or cones superimposed by nanoripples (laser‐induced peri…
View article: Modeling of Zinc Dynamics in the Synaptic Cleft: Implications for Cadherin Mediated Adhesion and Synaptic Plasticity
Modeling of Zinc Dynamics in the Synaptic Cleft: Implications for Cadherin Mediated Adhesion and Synaptic Plasticity Open
While the numerous influences of synaptically released zinc on synaptic efficiency during long-term potentiation have been discussed by many authors already, we focused on the possible effect of zinc on cadherins and therefore its contribu…
View article: “Fluidic diode” for passive unidirectional liquid transport bioinspired by the spermathecae of fleas
“Fluidic diode” for passive unidirectional liquid transport bioinspired by the spermathecae of fleas Open
We present a device for passive unidirectional liquid transport. The capillary channels used are bioinspired by the shape of the spermathecae (receptaculum seminis) of rabbit fleas (Spilopsyllus cuniculi) and rat fleas (Xenopsylla cheopis)…
View article: Femtosecond laser-induced microstructures on Ti substrates for reduced cell adhesion
Femtosecond laser-induced microstructures on Ti substrates for reduced cell adhesion Open
Miniaturized pacemakers with a surface consisting of a Ti alloy may have to be removed after several years from their implantation site in the heart and shall, therefore, not be completely overgrown by cells or tissue. A method to avoid th…
View article: Water transport through the intestinal epithelial barrier under different osmotic conditions is dependent on LI-cadherin trans-interaction
Water transport through the intestinal epithelial barrier under different osmotic conditions is dependent on LI-cadherin trans-interaction Open
In the intestine water has to be reabsorbed from the chymus across the intestinal epithelium. The osmolarity within the lumen is subjected to high variations meaning that water transport often has to take place against osmotic gradients. I…
View article: Adaptive camouflage: What can be learned from the wetting behaviour of the tropical flatbugs<i>Dysodius lunatus</i>and<i>D. magnus</i>
Adaptive camouflage: What can be learned from the wetting behaviour of the tropical flatbugs<i>Dysodius lunatus</i>and<i>D. magnus</i> Open
The neotropical flatbug species Dysodius lunatus and Dysodius magnus show a fascinating camouflage principle. Its appearance renders the animal hardly visible on the bark of trees. However, when getting wet due to rain, bark changes its co…
View article: Bone‐forming cells with pronounced spread into the third dimension in polymer scaffolds fabricated by two‐photon polymerization
Bone‐forming cells with pronounced spread into the third dimension in polymer scaffolds fabricated by two‐photon polymerization Open
The main aim of this work was to stimulate bone‐forming cells to produce three‐dimensional networks of mineralized proteins such as those occurring in bones. This was achieved by a novel approach using a specific type of mesenchymal progen…
View article: The plant hopper<i>Issus coleoptratus</i>can detoxify phloem sap saponins including the degradation of the terpene core
The plant hopper<i>Issus coleoptratus</i>can detoxify phloem sap saponins including the degradation of the terpene core Open
Issus coleoptratus is a small plant hopper which mainly feeds on the phloem sap from ivy. Although all parts of ivy are poisonous as the plant contains saponins, especially hederasaponins, I.coleoptratus can cope with the poison. In contra…
View article: Summary of relevant sand-dwelling squamate reptiles [9], [28].
Summary of relevant sand-dwelling squamate reptiles [9], [28]. Open
Summary of relevant sand-dwelling squamate reptiles [9], [28].
View article: NMR image of a sandfish buried approximately 100 mm deep in loose sand (top-view).
NMR image of a sandfish buried approximately 100 mm deep in loose sand (top-view). Open
- Clearly the body is contorted in a serpentiform manner and the limbs are not laid back along the body as suggested in the literature. The NMR-image is of the same individual shown in Figure 1.
View article: N-cadherin-mediated cell adhesion is regulated by extracellular Zn<sup>2+</sup>
N-cadherin-mediated cell adhesion is regulated by extracellular Zn<sup>2+</sup> Open
Free extracellular zinc binds to N-cadherin and can modulate cellular adhesion in the nervous system at picomolar zinc concentrations.