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izvor podataka: crosbi

Charge displacement by adhesion and spreading of a cell: amperometric signals of living cells (CROSBI ID 87994)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Svetličić, Vesna ; Ivošević, Nadica ; Kovač, Solveg ; Žutić, Vera Charge displacement by adhesion and spreading of a cell: amperometric signals of living cells // Langmuir, 16 (2000), 8217-8220-x

Podaci o odgovornosti

Svetličić, Vesna ; Ivošević, Nadica ; Kovač, Solveg ; Žutić, Vera

engleski

Charge displacement by adhesion and spreading of a cell: amperometric signals of living cells

Unicellular marine algae were used as model soft particles and the fast dropping mercury electrode as the adhesion sensor in order to get inside into the rule adhesion processes might play in single particle electrochemistry. Our approach is based on measurement of double-layer charge displacement by adhesion of single cells: the flow of compensating current reflects the dynamics of adhesive contact formation and spreading of a cell. Spike-shaped amperometric signals have the peak current in microamper range, duration of 5-10 ms and displaced charge in nC range. This technique thus allows us a precise measurement of the contact area and the distance of closest approach between a cell and the electrode. The only hypothesis used in interpreting the signals is validity of the electrical double-layer model.

amperometric signals; dropping mercury electrode; Dunaliella tertiolecta

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Podaci o izdanju

16

2000.

8217-8220-x

objavljeno

0743-7463

Povezanost rada

Kemija

Indeksiranost