Medical Design and Outsourcing

  • Home
  • Medical Device Business
    • Mergers & Acquisitions
    • Financial
    • Regulatory
  • Applications
    • Cardiovascular
    • Devices
    • Imaging
    • Implantables
    • Medical Equipment
    • Orthopedic
    • Surgical
  • Technologies
    • Contract Manufacturing
    • Components
    • Electronics
    • Extrusions
    • Materials
    • Motion Control
    • Prototyping
    • Pumps
    • Tubing
  • Med Tech Resources
    • DeviceTalks Tuesdays
    • Digital Editions
    • eBooks
    • Manufacturer Search
    • Medical Device Handbook
    • MedTech 100 Index
    • Podcasts
    • Print Subscription
    • The Big 100
    • Webinars / Digital Events
    • Whitepapers
    • Video
  • 2022 Leadership in MedTech
    • 2022 Leadership Voting!
    • 2021 Winners
    • 2020 Winners
  • Women in Medtech

Detecting Cancer With Lasers Has Limited Use

July 31, 2012 By University of Missouri - Columbia

A recent study by Polo-Parada found that photoacoustics was limited in its ability to identify other types of cancer than melanoma. (Credit: Dalton Cardiovascular Research Center)One person dies every hour from melanoma skin cancer in the United States, according to the American Cancer Society. A technique, known as photoacoustics, can find some forms of melanoma even if only a few cancerous cells exist, but a recent study by MU researchers found that the technique was limited in its ability to identify other types of cancer.

Attaching markers, called enhancers, to cancer cells could improve the ability of photoacoustics to find other types of cancer and could save lives thanks to faster diagnosis, but the technique is in its early stages.

“Eventually, a photoacoustic scan could become a routine part of a medical exam,” said Luis Polo-Parada, assistant professor of pharmacology & physiology and resident investigator at the Dalton Cardiovascular Research Center at the University of Missouri. “The technique doesn’t use X-rays, like current methods of looking for cancer. It could also allow for much earlier detection of cancer. Now, a cancerous growth is undetectable until it reaches approximately one cubic centimeter in size. Photoacoustics could potentially find cancerous growths of only a few cells. Unfortunately, our research shows that, besides some cases of melanoma, the diagnostic use of photoacoustics still has major limitations. To overcome this problem, the use of photoacoustic enhancers like gold, carbon nanotubes or dyed nanoparticles, is needed.”

Photoacoustics uses pulses of laser light to heat cells for a fraction of a second. When the cells become hot they emit a tiny sound. Extremely sensitive microphones can hear those sounds. The strength of the sound depends on how much laser light is absorbed. Since darker objects absorb more light they also emit more sound and can be found using photoacoustics.

“Some Melanoma can be found by photoacoustics because the cells contain large quantities of melanin, a dark pigment,” Polo-Parada said. “Other cancers don’t have that much pigmentation; hence, they don’t stand out as much in photoacoustic scans. This is where enhancers may be able to help by labeling cancer cells and making them stand-out in a scan.”

Polo-Parada in collaboration with Gerardo Gutierrez-Juarez, researcher from the University of Guanajuato, Mexico, found that out of seven types of cancer cells, only one type of melanoma was dark enough to produce a sound strong enough to be distinguishable from the rest.

The photoacoustic technique holds promise in the fight against cancer, said Polo-Parada, but it is too soon to say exactly when the public will benefit. Eventually, other diseases that cause changes in the coloration of cellular tissue, such as malaria, could be found by photoacoustics.

###

Luis Polo-Parada is an assistant professor in medical pharmacology & physiology and resident investigator at MU’s Dalton Cardiovascular Research Center. The study, “An experimental and theoretical approach to the study of the photoacoustic signal produced by cancer cells,” was published in the journal AIP Advances.

Related Articles Read More >

Engineer inspecting artificial hip joint parts in quality control department in orthopaedic factory
Deburring and finishing for beautiful, functional medical devices
A Medtronic HVAD pump opened up to show the inner workings
FDA designates new Medtronic HVAD pump implant recall as Class I
Dexcom One
How Dexcom’s portfolio goes beyond highly-anticipated next-gen G7
A portrait of Stryker executive Siddarth Satish
How Stryker includes users for product design in the digital age

DeviceTalks Weekly.

June 24, 2022
How innovative design, commercial strategy is building Cala Trio’s bioelectronic medicine market
See More >

MDO Digital Edition

Digital Edition

Subscribe to Medical Design & Outsourcing. Bookmark, share and interact with the leading medical design engineering magazine today.

MEDTECH 100 INDEX

Medtech 100 logo
Market Summary > Current Price
The MedTech 100 is a financial index calculated using the BIG100 companies covered in Medical Design and Outsourcing.
DeviceTalks

DeviceTalks is a conversation among medical technology leaders. It's events, podcasts, webinars and one-on-one exchanges of ideas & insights.

DeviceTalks

New MedTech Resource

Medical Tubing

Enewsletter Subscriptions

Enewsletter Subscriptions

MassDevice

Mass Device

The Medical Device Business Journal. MassDevice is the leading medical device news business journal telling the stories of the devices that save lives.

Visit Website
MDO ad
Medical Design and Outsourcing
  • MassDevice
  • DeviceTalks
  • MedTech 100 Index
  • Medical Tubing + Extrusion
  • Drug Delivery Business News
  • Drug Discovery & Development
  • Pharmaceutical Processing World
  • R&D World
  • About Us/Contact
  • Advertise With Us
  • Subscribe to Print Magazine
  • Subscribe to E-newsletter
  • Attend our Monthly Webinars
  • Listen to our Weekly Podcasts
  • Join our DeviceTalks Tuesdays Discussion

Copyright © 2022 WTWH Media, LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media LLC. Site Map | Privacy Policy | RSS

Search Medical Design & Outsourcing

  • Home
  • Medical Device Business
    • Mergers & Acquisitions
    • Financial
    • Regulatory
  • Applications
    • Cardiovascular
    • Devices
    • Imaging
    • Implantables
    • Medical Equipment
    • Orthopedic
    • Surgical
  • Technologies
    • Contract Manufacturing
    • Components
    • Electronics
    • Extrusions
    • Materials
    • Motion Control
    • Prototyping
    • Pumps
    • Tubing
  • Med Tech Resources
    • DeviceTalks Tuesdays
    • Digital Editions
    • eBooks
    • Manufacturer Search
    • Medical Device Handbook
    • MedTech 100 Index
    • Podcasts
    • Print Subscription
    • The Big 100
    • Webinars / Digital Events
    • Whitepapers
    • Video
  • 2022 Leadership in MedTech
    • 2022 Leadership Voting!
    • 2021 Winners
    • 2020 Winners
  • Women in Medtech