Can accurately detect cancer-related molecules in blood and are small enough to be used in portable medical devices
A new method that fabricates gold nanostructures quickly and efficiently could lead to highly sensitive, portable medical sensors. Recent advances in nanotechnology are providing new possibilities for medical imaging and sensing. Gold nanostructures, for example, can enhance the fluorescence of marker dyes that are commonly used to detect biomolecules and diagnose specific diseases.
Now, Ping Bai at the A*STAR Institute of High Performance Computing, Singapore, and co-workers have developed a fast and inexpensive way to fabricate arrays of gold nanoholes. The researchers have shown that sensor chips built using these nanostructures can accurately detect cancer-related molecules in blood and are small enough to be used in portable medical devices.
Nanohole arrays are designed so that incident light of certain wavelengths will induce large-scale oscillations of the gold electrons, known as localized surface plasmon resonance (SPR). The localized SPR focuses the absorbed light energy to enhance fluorescence (see image).
“Commercial SPR systems are already used in hospital laboratories, but they are bulky and expensive,” says Bai. “We would like to develop small, handheld devices for on-the-spot clinical use. This requires localized SPR, for which we need nanohole arrays.”
Previously, nanohole arrays have been created using electron-beam lithography (EBL), which is expensive and time consuming. Bai and co-workers used EBL to create a nickel mold and then used the mold to print nanohole patterns onto a photoresist material. The researchers made the nanostructures by evaporating gold onto the patterned structure before peeling off the photoresist material. Because the nickel mold can be reused many times, this method — called nano-imprinting — can produce large numbers of gold nanohole arrays.
The Latest Bing News on:
Medical Sensors
- YouTuber uses finger to test Cybertruck trunk sensor — and it doesn’t go wellon May 8, 2024 at 9:13 am
Tesla’s troubled Cybertruck flunked a safety test on its front-facing trunk — slamming shut on the finger of one driver who tested the vehicle’s hatch sensor. Jeremy Judkins, a YouTube personality who ...
- Media Release: Sensirion product announcement: miniature liquid flow sensor platform for subcutaneous drug deliveryon May 8, 2024 at 1:08 am
To meet these needs, Sensirion is developing the SLD3x platform – a series of digital liquid flow sensors to combine accurate flow measurement, miniature size, and compatibility with several therapies ...
- Researchers Add Chirality to Borophene, Opening the Door to Advanced Sensors and Implantable Medical Deviceson May 7, 2024 at 5:00 pm
Now, researchers at Penn State have made the material potentially more useful by imparting chirality — or handedness — on it, which could make for advanced sensors and implantable medical devices. The ...
- Breath-analyzing sensor dims its glow to show blood oxygen levelson May 6, 2024 at 11:10 am
A new sensor could soon allow hospital patients' blood oxygen levels to be checked via their breath. The technology is claimed to be more reliable and less painful than existing traditional methods.
- Swallowable sensor unfurls in stomach to monitor gut healthon May 6, 2024 at 2:00 am
A ribbon of electrodes could nestle in the gut to help diagnose gastrointestinal diseases linked to Parkinson’s ...
- New sensor detects errors in MRI scanson May 2, 2024 at 3:33 pm
A new prototype sensor is capable of detecting errors in MRI scans using laser light and gas. The new sensor can thereby do what is impossible for current electrical sensors -- and hopefully pave the ...
- Researchers develop fluorescence-based sensor that measures oxygen content of breathon May 2, 2024 at 10:30 am
It's a novel method in medical engineering, though," says Dr. Benedikt Bierer, group manager at Fraunhofer IPM. Another advantage of this principle is that the sensor enables continuous measuring of ...
- Young researcher has created a sensor that detects errors in MRI scanson May 1, 2024 at 5:00 pm
Hvidovre Hospital has the world's first prototype of a sensor capable of detecting errors in MRI scans using laser light and gas. The new sensor, developed by a young researcher at the University of ...
- Medical Sensors Market worth $3.6 billion by 2029 - Exclusive Report by MarketsandMarkets™on May 1, 2024 at 7:02 am
The medical sensors market is valued at USD 2.4 billion in 2024 and is projected to reach USD 3.6 billion by 2029; it is expected to grow at ...
- Medical Sensors Market worth $3.6 billion by 2029 - Exclusive Report by MarketsandMarkets™on May 1, 2024 at 3:01 am
CHICAGO, May 1, 2024 /PRNewswire/ -- The medical sensors market is valued at USD 2.4 billion in 2024 and is projected to reach USD 3.6 billion by 2029; it is expected to grow at a CAGR of 8.1% ...
The Latest Google Headlines on:
Medical Sensors
[google_news title=”” keyword=”Medical Sensors” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
The Latest Bing News on:
Nanotechnology
- European Dev Fund to Foment Global Semiconductor, Nanotech Innovationon May 8, 2024 at 7:16 am
The pupose of a new EUR 300 million fund in a collaborative effort with imec; The areas of interest the fund will address; Information about Imec.xpand; Created ...
- GIST Researchers Develop Nanotechnology for Creating Wafer-Scale Nanoparticle Monolayers in Secondson May 8, 2024 at 6:25 am
The researchers engineered the electrostatic surface potential for both the target surface and the nanoparticles, driven by proton dynamics. This led the nanoparticles to get arrested onto the target ...
- Nanotechnology Market on a Growth Trajectory: Forecasted to Reach USD 33.63 Billion by 2030on May 8, 2024 at 12:14 am
Allied Market Research, titled, “Nanotechnology Market By Type, and Application: Global Opportunity Analysis and Industry Forecast, 2021–2030,” the global nanotechnology market size was valued at ...
- UQ's AMTAR hub advances the development of hyper-accurate cancer drugson May 7, 2024 at 9:01 pm
The Australian Research Council (ARC) hub for Advanced Manufacture of Targeted Radiopharmaceuticals (AMTAR) is a one-stop-shop connecting biotech firms with expertise and equipment to design, test and ...
- Researchers develop nanotechnology for creating wafer-scale nanoparticle monolayers in secondson May 7, 2024 at 1:17 pm
Nanoscale materials present us with astonishing chemical and physical properties that help materialize applications such as single molecular sensing and minimally invasive photothermal therapy—which ...
- Nanotechnology in Therapeuticson May 6, 2024 at 4:59 pm
Nanomedicine. 2012;7(8):1253-1271. Although passive targeting approaches form the basis of clinical therapy, they suffer from several limitations. Ubiquitously targeting cells within a tumor is ...
- 'Quartet Nanocage' vaccine found effective against coronaviruses that haven't even emerged yeton May 6, 2024 at 6:38 am
Researchers have developed a new vaccine technology that has been shown in mice to provide protection against a broad range of coronaviruses with potential for future disease outbreaks—including ones ...
- The Role of Nanotechnology in Air Purification Advancementson May 6, 2024 at 2:49 am
The pervasive challenge of air pollution poses significant hurdles, inflicting profound adverse impacts on public health and ecosystems. This challenge is compounded by the presence of harmful ...
- Imec.xpand raises $320M for fund to invest in semiconductors and nanotechnologyon May 2, 2024 at 7:04 am
Imec.xpand, a chip and nanotech-focused venture capital fund, announced the launch of a new $320 million fund today.
- Forecasted Growth: AMEA Nanotechnology Photocatalysis Surface Coating Industry Set to Reach US$ 255.2 Million by 2033on April 25, 2024 at 3:08 am
The AMEA (Asia and Middle East and Africa) nanotechnology photocatalysis surface coating industry value is predicted to increase from US$ 85.3 million in 2023 to US$ 255.2 million by 2033. Over the ...
The Latest Google Headlines on:
Nanotechnology
[google_news title=”” keyword=”nanotechnology” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]