Literature DB >> 12017479

Photothermal monitoring of redox state of respiratory chain in single live cells.

Dmitri Lapotko1, Tat'yana Romanovskaya, Elena Gordiyko.   

Abstract

A method for monitoring respiratory chain (RC) activity in single live cells is described. It is based on the registration of the photothermal (PT) response after a laser pulse of a live single cell. The dependence of the PT-response amplitude and shape upon redox state of RC components was studied with a PT microscope for two in vitro models: (1) solutions of the RC component cytochrome c and (2) mice hepatocytes. The parameters of the PT responses differed for oxidized and reduced forms of cytochrome c solutions and for inhibited RC and intact RC. The latter difference may be caused by alteration of the quantum yields of thermal (nonradiative) relaxation for light-absorbing molecules, i.e. RC components, as they undergo reduction during RC inhibition.

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Year:  2002        PMID： 12017479     DOI： 10.1562/0031-8655(2002)075<0519:pmorso>2.0.co;2

Source DB:  PubMed          Journal:  Photochem Photobiol        ISSN： 0031-8655            Impact factor:   3.421


  8 in total

1.  Generation and detection of plasmonic nanobubbles in zebrafish.

Authors:  E Y Lukianova-Hleb; C Santiago; D S Wagner; J H Hafner; D O Lapotko
Journal:  Nanotechnology       Date:  2010-05-07       Impact factor: 3.874

2.  Ultrasensitive label-free photothermal imaging, spectral identification, and quantification of cytochrome c in mitochondria, live cells, and solutions.

Authors:  Anton V Brusnichkin; Dmitry A Nedosekin; Ekaterina I Galanzha; Yuri A Vladimirov; Elena F Shevtsova; Mikhail A Proskurnin; Vladimir P Zharov
Journal:  J Biophotonics       Date:  2010-12       Impact factor: 3.207

3.  Rainbow Plasmonic Nanobubbles: Synergistic Activation of Gold Nanoparticle Clusters.

Authors:  Ekaterina Y Lukianova-Hleb; Alexander O Oginsky; Derek L Shenefelt; Rebekah A Drezek; Jason H Hafner; Mary C Farach-Carson; Dmitri O Lapotko
Journal:  J Nanomed Nanotechnol       Date:  2011-01-01

4.  Short laser pulse-induced irreversible photothermal effects in red blood cells.

Authors:  Ekaterina Y Lukianova-Hleb; Alexander O Oginsky; John S Olson; Dmitri O Lapotko
Journal:  Lasers Surg Med       Date:  2011-02-02       Impact factor: 4.025

5.  Plasmonic nanoparticle-generated photothermal bubbles and their biomedical applications.

Authors:  Dmitri Lapotko
Journal:  Nanomedicine (Lond)       Date:  2009-10       Impact factor: 5.307

6.  Plasmonic nanobubbles as tunable cellular probes for cancer theranostics.

Authors:  Dmitri Lapotko
Journal:  Cancers (Basel)       Date:  2011-02-23       Impact factor: 6.639

7.  Tunable plasmonic nanoprobes for theranostics of prostate cancer.

Authors:  Ekaterina Y Lukianova-Hleb; Alexander O Oginsky; Adam P Samaniego; Derek L Shenefelt; Daniel S Wagner; Jason H Hafner; Mary C Farach-Carson; Dmitri O Lapotko
Journal:  Theranostics       Date:  2011-01-10       Impact factor: 11.556

8.  Improved cellular specificity of plasmonic nanobubbles versus nanoparticles in heterogeneous cell systems.

Authors:  Ekaterina Y Lukianova-Hleb; Xiaoyang Ren; Pamela E Constantinou; Brian P Danysh; Derek L Shenefelt; Daniel D Carson; Mary C Farach-Carson; Vladimir A Kulchitsky; Xiangwei Wu; Daniel S Wagner; Dmitri O Lapotko
Journal:  PLoS One       Date:  2012-04-03       Impact factor: 3.240
  8 in total

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