Photoacoustic micropipette
نویسندگان
چکیده
منابع مشابه
Performance studies in micropipette calibration
The measurement of small amounts of liquids is very important in fields like, health, chemistry, microbiology and genetics. The most common used instruments for delivery of liquids, in the order of the microliter, are micropipettes or piston pipettes, of fixed or variable volume, with positive or air displacement operation. The method used in the calibration of micropipettes is the gravimetric ...
متن کاملMicropipette aspiration of living cells.
The mechanical behavior of living cells is studied with micropipette suction in which the surface of a cell is aspirated into a small glass tube while tracking the leading edge of its surface. Such edges can be tracked in a light microscope to an accuracy of +/-25 nm and suction pressures as small as 0.1-0.2 pN/microm2 can be imposed on the cell. Both soft cells, such as neutrophils and red cel...
متن کاملUltrafast response micropipette-based submicrometer thermocouple
Submicrometer-size thermocouples at the tip of gold-coated glass micropipettes containing a platinum core were produced and tested. The response time of such thermocouples measured with different techniques appeared to be not bigger than a few microseconds. The calculations indicate that the spatial selectivity of this new class of thermocouple devices can be less than 2 pm along the pipette an...
متن کاملCharacterizing cell adhesion by using micropipette aspiration.
We have developed a technique to directly quantify cell-substrate adhesion force using micropipette aspiration. The micropipette is positioned perpendicular to the surface of an adherent cell and a constant-rate aspiration pressure is applied. Since the micropipette diameter and the aspiration pressure are our control parameters, we have direct knowledge of the aspiration force, whereas the cel...
متن کاملPhotoacoustic elastography.
Elastography can noninvasively map the elasticity distribution in biological tissue, which can potentially be used to reveal disease conditions. In this Letter, we have demonstrated photoacoustic elastography by using a linear-array photoacoustic computed tomography system. The feasibility of photoacoustic elastography was first demonstrated by imaging the strains of single-layer and bilayer ge...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2018
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.5052162