93 research outputs found
Specific antigen/antibody interactions measured by force microscopy
No full textDammer U, Hegner M, Anselmetti D, et al. Specific antigen/antibody interactions measured by force microscopy. Biophysical journal. 1996;70(5):2437-2441.Molecular recognition between biotinylated bovine serum albumin and polyclonal, biotin-directed IgG antibodies has been measured directly under various buffer conditions using an atomic force microscope (AFM). It was found that even highly structured molecules such as IgG antibodies preserve their specific affinity to their antigens when probed with an AFM in the force mode. Evidence that only a very limited number (less than 10) antibody/antigen pairs contribute to the measured interaction force is given. The potential and limitations of this new approach for the measurement of individual antigen/antibody interactions, and some possible applications are discussed
Geologische Specialkarte von Preussen und den Thüringischen Staaten / 4820 Samter
No full textgeologisch und agronomisch bearbeitet durch Br. Dammer u. F. Herrman
Geologische Karte von Preußen und benachbarten deutschen Ländern / Gradabtheilung 57, Blatt 15 [4236] Bernburg
No full textgeologisch und agronomisch bearbeitet durch K. Keilhack u. Br. Dammer 1909 ; bergbauliche Eintragungen von F. Schünemann 1911 u. 12 ; topogr. Aufnahme des Kgl. Preuß. GeneralstabesKopftitel, Zählung oben links, Maßstäbe unten, Erläuterungen links und rechtsMaßstab in grafischer Form (Meter, Schritt)Mit "Profil A-B"Mit HöhenangabenNullmeridian: FerroAufgrund der Größe liegt die Karte in 2 Scans vo
Geologische Specialkarte von Preussen und den Thüringischen Staaten / 4819 Scharfenort
No full textgeologisch und agronomisch bearbeitet durch Br. Dammer u. F. Herrman
Geologische Specialkarte von Preussen und den Thüringischen Staaten / 2549 Bienenbüttel
No full textgeognostisch und agronomisch bearbeitet durch Br. Dammer u. H. MonkeIndirektes handschriftliches Exlibris: "1911, 642", das ist Königlich Preußische Geologische Landesanstalt Exemplar der ETH-BI
Measuring Molecular Adhesion with Force Microscopy
No full textDammer U, Anselmetti D, Dreier M, et al. Measuring Molecular Adhesion with Force Microscopy. In: Güntherodt HJ, Anselmetti D, Gerber C, Meyer E, eds. Force in Scanning Probe Methods. Dordrecht, The Netherlands: Kluwer Academic Publishers; 1995: 625-631
DYNAMIC FORCE MICROSCOPY IN LIQUIDS
No full textDREIER M, Anselmetti D, RICHMOND T, DAMMER U, GÜNTHERODT HJ. DYNAMIC FORCE MICROSCOPY IN LIQUIDS. Journal of Applied Physics. 1994;76(9):5095-5098.We applied dynamic force microscopy in a liquid environment to silanized and derivatized glass surfaces, InGaAs, as well as to biological materials such as hexagonally packed intermediate layers of deinococcus radiodurans. The vertical and lateral resolution were estimated to be <1 Angstrom and 7-10 nm, respectively. Upon immersing the cantilever into water, the resonance frequency was found to be reduced by a factor of two and the Q factor was lowered to 20-30. The experimental working distance between sensor and sample was determined with approach curves indicating that the range of interaction in water is much shorter compared to air
Scanning Probe Microscopy for Industrial Applications: Selected Examples
No full textDAMMER U, Anselmetti D, DREIER M, et al. Scanning Probe Microscopy for Industrial Applications: Selected Examples. Scanning. 1993;15(5):257-264.Some examples are selected to demonstrate the variety of possible scanning probe microscopy application in industry. Magnetic and magnetooptical storage media can be investigated by magnetic force microscopy, whereas a conventional scanning force microscope is used to examine surface features of many different materials, such as technical glasses, photosensitive materials, new superconductors, and biomolecules. Some other examples include the modification as well as the observation of liquid crystal devices, and the impact that scanning probe microscopy has on other techniques such as high precision stepping motors and high quality electron beam sources
Geologische Specialkarte von Preussen und den Thüringischen Staaten / 5855 Windischleuba (Regis)
No full textgeognostisch bearbeitet durch B. Kühn u. Br. Dammer ; herausgegeben von der Kgl. Preuss. geolog. Landesanstal
Binding strength between cell adhesion proteoglycans measured by atomic force microscopy
No full textDammer U, Popescu O, Wagner P, Anselmetti D, Güntherodt H-J, Misevic GN. Binding strength between cell adhesion proteoglycans measured by atomic force microscopy. Science. 1995;267(5201):1173-1175.Measurement of binding forces intrinsic to adhesion molecules is necessary to assess their contribution to the maintenance of the anatomical integrity of multicellular organisms. Atomic force microscopy was used to measure the binding strength between cell adhesion proteoglycans from a marine sponge. Under physiological conditions, the adhesive force between two cell adhesion molecules was found to be up to 400 piconewtons. Thus a single pair of molecules could hold the weight of 1600 cells. High intermolecular binding forces are likely to form the basis or the integrity of the multicellular sponge organism
- …
