نتایج جستجو برای: سوزن afm
تعداد نتایج: 12011 فیلتر نتایج به سال:
مقدمه و هدف : سندرم درد مفصل پتلوفمورال یکی از شایع ترین علل زانو درد است که مفصل بین دو استخوان فمور و کشکک را تحت تاثیر قرار می دهد. اتیولوژی این سندرم دقیقا مشخص نیست ولی یکی از مهمترین علل آن اختلال در مکانیسم اکستانسوری زانو می باشد. از دیدگاه میوفاشیال اختلال عملکرد عضله کوادری سپس می تواند یکی از عوامل این اختلال مکانیسم اکستانسوری باشد. در این مطالعه 34 شرکت کننده با تشخیص سندرم درد م...
AFM allows the visualization of biological samples under physiological solution conditions, at high spatial resolution. However, captured images are limited to snapshots because it takes at least 30 seconds to capture an image, whereas biological phenomena are highly dynamic. To overcome this limitation, my group has developed high-speed AFM. The dynamic processes and structural dynamics of pro...
sors capable of resolving forces up to 490pN with a resolution of O.OlpN in z, and up to 900pN with a resolution of 0.24~N in I, in the oassive mode, Electrostatic microactuators are microsc~py (AFM) techniques, mere are four limitations restricting AFM use in cellular force measurement during .~~ inkgrated to the force t, operate in manipulation. First, different types of end-effectors such as...
The formation mechanism of atomic force microscope (AFM) Moir e is explained using the transmittance function. The technique for preparing the AFM Moir e specimen grating is described. The sensitivity and accuracy of this method is analyzed. AFM Moir e method is used to measure the thermal deformation ball grid array (BGA) electronic package. The shear strain at the different solders in the BGA...
Using Atomic Force Microscopes (AFM) to manipulate nanoobjects is an actual challenge for surface scientists. Basic haptic interfaces between the AFM and experimentalists have already been implemented. The multi-sensory renderings (seeing, hearing and feeling) studied from a cognitive point of view increase the efficiency of the actual interfaces. To allow the experimentalist to feel and touch ...
Atomic force microscopy (AFM) is a three-dimensional topographic technique with a high atomic resolution to measure surface roughness. AFM is a kind of scanning probe microscope, and its near-field technique is based on the interaction between a sharp tip and the atoms of the sample surface. There are several methods and many ways to modify the tip of the AFM to investigate surface properties, ...
BACKGROUND The occurrence of aflatoxin M1 (AFM1) in milk, especially breast milk, is a valuable biomarker for exposure determination to aflatoxin B(1) (AFB(1)). In the present study, the risk of exposure to AFM(1) in infants fed breast milk was investigated. METHODS An enzyme-linked immunosorbent assay (ELISA) was used for the analysis of AFM(1) in breast milk samples from 132 lactating mothe...
Atomic force microscopes (AFM) provide topographical and mechanical information of the sample with very good axial resolution, but are limited in terms of chemical specificity and operation time-scale. An optical microscope coupled to an AFM can recognize and target an area of interest using specific identification markers like fluorescence tags. A high resolution fluorescence microscope can vi...
Autoantibodies binding to the extracellular domains of desmoglein (Dsg) 3 and 1 are critical in the pathogenesis of pemphigus by mechanisms leading to impaired function of desmosomes and blister formation in the epidermis and mucous membranes. Desmosomes are highly organized protein complexes which provide strong intercellular adhesion. Desmosomal cadherins such as Dsgs, proteins of the cadheri...
BaMn2Bi2 possesses an iso-structure of iron pnictide superconductors and similar antiferromagnetic (AFM) ground state to that of cuprates, therefore, it receives much more attention on its properties and is expected to be the parent compound of a new family of superconductors. When doped with potassium (K), BaMn2Bi2 undergoes a transition from an AFM insulator to an AFM metal. Consequently, it ...
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