Navigation Links
Using high-precision laser tweezers to juggle cells
Date:5/15/2009

Researchers at the University of Gothenburg, Sweden, have developed a new method to study single cells while exposing them to controlled environmental changes. The unique method, where a set of laser tweezers move the cell around in a microscopic channel system, allows the researchers to study how single cells react to stress induced by a constantly changing environment.

Studies on how cells react to changes in their environment, such as reduced availability of nutrients, have traditionally used cultures consisting of millions of cells. While such studies show how cells on average react to a new environment, they say nothing about individual variation, for example how quickly a single cell responds.

PhD Emma Eriksson and her colleagues at the Department of Physics, University of Gothenburg, Sweden, developed a method where laser tweezers are used to catch a cell the size of about one micrometer, or 0.001 of a mm, and then move the cell between different environments.

Placing the cell in a system of channels made of silicone, in which each channel is finer than a human hair, enables the researchers to add and remove substances so that the environment surrounding a single cell changes in a split second - while at the same time watching the reactions through a microscope.

The channels in the so-called microfluidic system can be likened to tiny water pipes. In a channel, a single cell can be exposed to tests and various substances for very exact time periods, which enables the researchers to repeatedly add and remove a substance to see how it affects the behaviour of the cell. This new method gives researchers information that would not be possible to obtain with traditional methods.

In its first stage, the new method has been tested on yeast cells. One of the cells' proteins was tagged with a green fluorescent protein (GFP), enabling researchers to trace the movements of the protein within the cell while it adjusts to
'/>"/>

Contact: Krister Svahn
krister.svahn@science.gu.se
46-031-786-4912
University of Gothenburg
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Consumers more likely to identify healthy food using traffic light nutrition labels
2. Using combinatorial libraries to engineer genetic circuits advances synthetic biology
3. K-State using Second Life island to help high school students learn earth science
4. Caltech scientists control complex nucleation processes using DNA origami seeds
5. VeriLook Surveillance SDK Provides Real-Time Face Identification Using Video Surveillance Cameras
6. VeriLook Surveillance SDK Provides Real-Time Face Identification Using Video Surveillance Cameras
7. Using hair to manage HIV/AIDS and predict treatment success
8. Milestone achieved toward production of malaria treatment using synthetic biology and fermentation
9. MIT: Using touch to help deaf people
10. Dana-Farber oncologists present at ASCO GU -- predict prostate cancer survival using Source MDx test
11. Biological control of tropical weeds using arthropods
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Using high-precision laser tweezers to juggle cells
(Date:1/22/2015)... 2015  BellBrook Labs, a leader in high throughput ... of a TR-FRET (time resolved Forster resonance energy ... a high throughput screening assay for glycosyltransferases and ... for sensitive detection of hundreds of human and ...
(Date:1/22/2015)... , Jan. 20, 2015 NXT-ID, Inc. (NASDAQ: NXTD ... commerce market, reports on the recent success of the Wocket™ smart wallet ... Wocket smart wallet was named as one of the "11 Hot ... "5 Best Products Launched At CES So Far" by Newseveryday.com and "The ...
(Date:1/22/2015)... NEW YORK , Jan. 21, 2015  Analyst Report Issued ... Credit Card Brands report showed that planet-wide, transactions at merchants ... 2011, while the total number of credit, debit, and prepaid ... the U.S. were victims of fraudulent card usage in 2012, ...
Breaking Biology News(10 mins):BellBrook Labs Launches a High Throughput Screening Assay for Glycosyltransferases with TR-FRET Readout 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 2
... EUGENE, Ore.(Aug. 20, 2007)Nitric acid is a notoriously strong and ... our atmosphere. However, a team of researchers have found that ... top of a water surface. The discovery of the ... the surface of water requires us to re-evaluate how we ...
... of G&D, Drs. Maria Divina Deato and Robert Tjian ... alternative transcriptional core promoter complex directs cell-type specific differentiation ... of transcriptional control of terminal cell differentiation, and will ... date at www.genesdev.org . For nearly 30 ...
... after prior full-dose conventional radiation therapy respond to Boron ... a Phase I/II study at the Helsinki University Hospital, ... Heikki Joensuu, University of Helsinki, considers the results ... field for BNCT, since thus far BNCT has been ...
Cached Biology News:University of Oregon researcher finds that on water's surface, nitric acid is not so tough 2A new radiation therapy treatment developed for head and neck cancer patients 2
(Date:1/22/2015)... 21, 2015 Cambridge Semantics, the leading provider ... announced that 2014 was a record-breaking year across the board ... the Anzo Smart Data Platform and our Smart Data solutions, ... from diverse data which led to record growth for the ...
(Date:1/22/2015)... 22, 2015 zFlo Motion , a ... announce an exciting product from a new partner. STT-Systems ... over the past 15 years, with offerings in the optical-motion ... 3D IMU system (inertial measurement unit), iSen, is opening eyes ...
(Date:1/22/2015)... Nueva Jersey , 22 de enero de 2015  El ... abre hoy su llamada a nominaciones para 2015. Este ... ha hecho, o tiene el potencial para hacer, contribuciones ... nominaciones se aceptarán hasta el 15 de marzo de ...
(Date:12/25/2014)... The report “Service Quality Management and Telco Customer ... - Global Advancements, Worldwide Forecasts & Analysis (2014-2019)” defines ... forecasting of revenues. , Browse 152 market data ... TOC on “Service Quality Management (SQM) and Telco Customer ...
Breaking Biology Technology:Cambridge Semantics Announces Record Results for 2014 23D Motion Capture Just Got Easy 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 3El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 4Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 3Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 4
... Germany, Sept. 1 ,Boston Scientific Corporation (NYSE: ... its landmark SYNTAX trial comparing percutaneous coronary ... Stent,System to contemporary coronary artery bypass graft ... significant differences,between PCI and CABG in rates ...
... to realize the electrical units of voltage, resistance ... nano-circuits are nowadays used. Important prerequisites are extremely ... the crystal without collision with residual impurities. To ... PTB has set up a new molecular beam ...
... Anesiva,Inc. (Nasdaq: ANSV ) today announced that Michael ... present at BioCentury,s,Newsmakers in the Biotech Industry Conference in ... ET., To access the live webcast or the ... to the Investors page, and click on Events.,Please connect ...
Cached Biology Technology:Landmark SYNTAX Trial Reports Comparable Safety Outcomes for Complex Patients Treated With TAXUS(R) Express2(TM) Stents or Bypass Surgery 2Landmark SYNTAX Trial Reports Comparable Safety Outcomes for Complex Patients Treated With TAXUS(R) Express2(TM) Stents or Bypass Surgery 3Landmark SYNTAX Trial Reports Comparable Safety Outcomes for Complex Patients Treated With TAXUS(R) Express2(TM) Stents or Bypass Surgery 4Landmark SYNTAX Trial Reports Comparable Safety Outcomes for Complex Patients Treated With TAXUS(R) Express2(TM) Stents or Bypass Surgery 5'Racetrack' for fast electrons in semiconductor structures 2Anesiva to Present at BioCentury Newsmakers Conference on September 4, 2008 2
Excellent safety and durability., Remote control can be easily operated in your hand., Constant voltage control with 2 sets of terminals., Precise and durable circuit design. ...
Gel Loading Buffer contains a precipitant to ensure that the samples sink into the wells and a tracking dye to allow the user to follow the progress of electrophoresis....
Rabbit anti Xanthine Oxidase Xanthine Oxidase, Bovine Buttermilk...
Mouse polyclonal antibody to QPRT - quinolinate phosphoribosyltransferase (nicotinate-nucleotide pyrophosphorylase (carboxylating))...
Biology Products: