product-innovation – NECTEC : National Electronics and Computer Technology Center

The first 40 Smart Temperature Measurement “μTherm FaceSense” is ready to launch!

dtmd-saw — Wed, 28 Jul 2021 09:12:00 +0000

Innovation

The first 40 Smart Temperature Measurement “μTherm FaceSense” is ready to launch!

Author | Walailak Kongprajan English Translator | Siri-on Umarin, Rungroj Jintamethasawat, Ph.D Photographer | Kornrawee Kaewmoon, Sasiwipar Hasuk

With the emerging of COVID-19 outbreak, Thai people take notice of their body temperature as it is one of the measurable factors for the COVID-19 and other virus infections i.e. Influenza, Acute Respiratory Disease, Encephalitis, Malaria, and Dengue Fever, etc.

Measuring body temperature before entering any building, especially in the most crowded areas, has become the first precautionary procedure. Infrared thermometers are cost-effective devices that are widely used, but its drawback is an inability to detect several people simultaneously and perform wide-range scanning. Thermal imaging cameras are also employed in the airport or department stores. Though they have better detection throughput, they are more expensive. This has prompted Thai researchers to develop a new affordable temperature measurement system. Unlike other commercial systems, this system can identify temperatures of multiple persons at the same time and can store important data from suspects. The idea behind this useful feature is utilizing additional information from a typical, off-the-shelf camera that provides color images, and applying an accurate face detection algorithm on there. This system can identify temperatures of up to 9 persons within only 0.1 seconds (within 1.5-meter range). Additionally, it supports IoT computing and data storage.

μTherm FaceSense: A Smart Temperature Measurement System

“μTherm FaceSense” is a multi-people temperature screening system utilizing IoT computing and data storage. Its portability and integration to IoT computing technology are major improvements over its old version. It is now supported by the Office of the National Broadcasting and Telecommunication Commission (OBTC).

Dr.Saran Samritdetkajorn, Acting Deputy Executive Director of NECTEC said, “μTherm FaceSense” is based on the former IP of the researcher including the non-invasive automatic temperature measurement system. This system further links collected data to an IoT computing system, and enables accurate temperature measurements of several persons simultaneously.

μTherm FaceSense has a maximum screening range of 1.5 meters and has a screening time only within 0.1 seconds. The measured temperature will be overlaid over a person’s face on the screen. If the temperature exceeds the pre-specified threshold, its color will change from green to red with a warning sound. Furthermore, μTherm FaceSense provides flexibility to configure relevant parameters such as offset temperature, variations of measurement range (already patented by PHT, NECTEC). These allow undesirable effects, such as ambient temperature, humidity, and range, to be minimized as much as possible.

Dr. Chalee Vorakulpiphat, a head researcher of the Information Security Research Team (SEC), explained that the face detection algorithm his team developed is able to accurately identify multiple persons in the same scene. This ensures that the system collects temperature measurements at regions of interest that actually correspond to human faces. Such non-contact procedure helps reduce the risk of exposure from staff to screening recipients, and vice versa.

“In the past, our team developed full-face detection, but since COVID-19 pandemic has spreaded out, people need to wear a mask. Therefore, we develop a new technique that can identify faces even covered by masks. Meanwhile, this technique could be further developed in the contexts of security and safety in the future.” said Dr. Charlie.

Mr. Armote Somboonkaew, a researcher from the Photonics Technology Research Team (PHT) and who is a project leader of µTherm-FaceSense system, said that µTherm-FaceSense system is easy to install. Once the system is connected to the external display via an HDMI cable, it is up and running. In addition, NECTEC researchers have designed a software to analyze and store the data within the internal system. Moreover, the software can access and transfer the analyzed data through the internet, via a 3G/4G or a Wi-Fi connection.

In the near future, the research team plans to store temperature measurements and captured face images in an organizational server, so that authorized personnel can verify those information via Dashboard, Web Server, or other Application if needed. This helps in controlling the number of infected people and tracking the pandemic status in real-time especially in crowded places that pose a high risk of contagion, such as hospitals, department stores, office buildings, and factories.

µTherm-FaceSense Timeline

μTherm FaceSense on IEEE Spectrum Website

This Temperature-Screening System for COVID-19 Can Check Up to 9 People at Once

The Series of MuEye Microscope

dtmd-saw — Wed, 28 Jul 2021 09:10:13 +0000

Service Innovation

The Series of MuEye Microscope

Light microscope is known as a basic scientific instrument. It magnifies small objects and give not-visible-to-naked-eye details. Therefore, it is a powerful learning tool for everyone including, but not limit to students in scientific program. Although microscope is important for learning, many schools cannot afford this equipment as well as other relevant costs (i.e. lens maintenance, temperature and humidity-controlled room, and external camera for image capture.

Researcher from Photonics Technology Team (PHT), National Electronics and Computer Technology Center (NECTEC), National Sciences and Technology Development Agency (NSTDA) then started developing self-attached-flexible-polymer lens which can be easily attached onto camera of smartphone or tablet since 2014, and use as a personal microscope. The lens was named MuEye pronounced as Mu-Eye which means eyes for seeing micron-size objects.

MuEye lens differs from other commercial magnified lenses due to the patent-pending moldless fabricating process. Our technique gives high-quality lens with controllable magnifications ranging from 1 to 200 times by varying fabricating temperature and nozzle moving speed. This research will allow low-cost lens manufacturing for mobile microscope. We also designed a sample stand which has built-in light source, adjustment knob and ability to use with both front and back camera of smartphone device. MuEye prototype was first launched to market in 2014 via crowdfunding in product name “TWI-VIS” and can raise fund more than 6000 USD. This funding was spent on mass production R&D.

Since 2015, a number of prototypes were distributed to schools in different campaigns.

In 2019, MuEye RoboKid, the new version of MuEye Series has integrated with NECTEC microcontroller board (KidBright: https://www.kid-bright.org ). We simplified the process of lens alignment and changed the manual focal adjustment to x-y-z position scanning. Users will be able to control the MuEye RoboKid Microscope using Kidbright controlled panel or our MuEye software.

MuEye Software

Click here for software downloading

MuEye ROBOKid-compressed

MuEye RoboKid microscopes are available in many schools, which participated in FABLAB and KruKid campaign (see the map for further detail).

FABLAB is NSTDA’s campaign for promote prototype fabrication skills in schools
KruKid is NECTEC’s contest campaign for seek out talented high-school teachers

Map

We also developed other learning tools to inspire children in building up science skills. The following video shows kids’ experiences for 1 day-science camp in NSTDA, Thailand.

Crowdfunding link:: https://www.indiegogo.com/projects/dual-microscope-lens-for-mobile-devices-twi-vis#/
Publication link:: https://dx.doi.org/10.1371/journal.pone.0146414; https://light2015blog.org/2015/10/29/digital-microscope-in-your-hand

More Info, please contact our facebook fanpage:: https://facebook.com/MuEyeLens

MuEye Handbook

Click Here

OnSpec Series : NECTEC SERs Chips

dtmd-saw — Wed, 28 Jul 2021 09:08:32 +0000

Innovation

OnSpec Series : NECTEC SERs Chips

Surface-Enhanced Raman Spectroscopy (SERS), a promising tool with great potentials, can be readily used for rapid detection in trace chemical analyses, unlike other standard techniques.

NECTEC offers a product solution of SERS substrates, the “OnSpec” series, that can be utilized in a wide range of applications.

The OnSpec series can now be used for trace detections in food ingredients (pesticides, odors), forensic investigations (narcotic drugs, explosive substances, pen inks), and medical studies (biomolecules).

ONSPEC SOLUTION

Our OnSpec Product Solution includes:

ONSPEC-Prime: an award-winning SERS substrates with top-of-the-line performance. Based on carefully crafted nanostructures, our OnSpec-Prime delivers highly enhanced Raman signals, up to 100 times when compared to those from other commercially available products.

ONSPEC-X Plus: enjoys the benefits of reusability from photocatalytic nanostructured templates. OnSpec-X+ delivers up to 10 reusable cycles with a simple UV exposure.

ONSPEC-Lite: a cost-effective SERS substrates based on unique nanostructures in micro- to nano-meter scales. OnSpec-Lite is nano-engineered towards compatibility with most portable or handheld Raman spectrometers for simple and rapid Raman screening process.

SPECIFICATIONS

All models of the OnSpec SERS series are film-based at 4×4 mm2 in dimension. They come in metalized package (21.2 g) for prolonged storage and ease of handling.

Developed by

Opto-Electrochemical Sensing Research Team (OEC): Spectroscopic and Sensing Devices Research Group (SSDRG); National Electronics and Computer Technology Center (NECTEC); https://www.facebook.com/OTL.NECTEC/

Contact

Strategic Planning and Partner Development Division (SPD)
email: business[at]nectec.or.th

Digital Radiography : BodiiRay

dtmd-saw — Wed, 28 Jul 2021 09:04:32 +0000

Innovation

Digital Radiography : BodiiRay

BodiiRay, has been developed under the “Development of Digital X-ray system” project. Digital Radiography (DR) is a technology which is now replacing the film-cassette based radiography. The DR system can yield instant radiographic images for the doctors to examine the patients. Since the DR system has many advantages over the film-cassette based one, many hospitals in Thailand want to upgrade their systems to be digital radiography systems. However, imported DR systems are costly. Most small public hospitals do not have sufficient budgets to purchase these systems.

A research team from MTEC and NECTEC jointly developed an affordable digital radiography system called BodiiRay. This prototype of the U-arm DR system consists of a flat panel detector, an x-ray unit, and developed software. Once the prototype was completed, the performance test has been done in the lab, including the electrical safety test by PTEC. The result showed that the prototype has basic features comparable to those of the commercial systems.

A clinical study of this prototype has been done at Thammasart University Hospital and the result was promising. Thammasat University Hospital has decided to use this prototype for chest radiography service in a health check-up center in the hospital since August 2015. The prototype has been used with more than 9,000 patients (as of July 31, 2017). A 3-year contract for chest radiography service between NSTDA and Thammasart University Hospital has been signed.

NECTEC FAARM Series : Technology for Agricultural Industry

dtmd-saw — Wed, 28 Jul 2021 08:56:29 +0000

Innovation

NECTEC FAARM Series : Technology for Agricultural Industry

If equipments in the farm could be automatically work themselves, How satisfy farmers will be?

The National Electronics and Computer Technology Center: NECTEC have been continuously emphasized with agriculture and food with supporting new technologies of farming or Smart Farm, especially on managing and using technologies for increasing products and enhancing agricultural standard with “NECTEC FAARM Series: Technology for Agricultural Industry” is a set of technologies by Thai Researchers which ready to deliver to interested farmers and entrepreneurs. There are 2 Sets of Technologies which are divided by working pattern i.e.

FAARM SENSE
FAARM FiT

1. FAARM SENSE

A set of Intelligent Monitoring Technologies divided to 2 models are as follows :

1.1 AMBIENT SENSE: Environment monitoring system for raising and planting

AquaLife Model – for raising aquatic animals is measuring system for monitors water quality or to raises aquatic animals. It could be connect to many sensors such as DO EC pH temperature etc.,
Greenhouse Model – for planting is environment monitoring system for planting area could be connect to many sensors such as temperature, relative humidity, light intensity etc.,

It could be expand the sensors also record and access to the data via internet by web browser and application on Android OS.

1.2 WEATHER SENSE: Meteorological Station for tracking down the growth of plants, could be divided to 2 models i.e.

Standard Model – for measuring the temperature, the level of relative humidity, the level of rain drop etc.,
Watchdog Model – which developing capability of Meteorological Station for monitoring and warning the flash flood. Watchdog will be release in nearly future.

2. FAARM FiT

A set of technologies for Intelligent agricultural control

A set of technologies for aquatic raising control.

2.1 BUBBLE FiT: A system which are controlling and monitoring for aquatic raising in Oxy Model. Aerating Control System for aquatic raising with a prominent capability, to measure dissolved the Oxygen (DO) for 24 hours, to prevent the Oxygen drop from unexpected matter also to save the energy by automatic switch on/off the paddle wheel aerator by measuring and balancing DO. It could be specify operation of paddle wheel aerator for sedimentation, water circulation control.

Furthermore it would be alarm to users when unusual matter happen in the farm.

2.2 GROW FiT: A growth control System The integration system between adjusting environment system and controlling production factors system to create “HAPPY SHRIMP” product which could be check water quality, aeration control and feeding shrimp. The product will be release soon.

A set of technologies for growing plant control.

2.3 AMBIENT FiT: Adjusting and controlling ambient condition for growing plant. Divided to 2 models by type of environmental control i.e.

Cool Model – for reducing temperature control system or adjusting humidity in the farm into preference period by spraying fog or using cooling pad. The advantage is could be connect to many category of sensors such as
Comfort Model – for environmental control in the closed farm or controlled room, could be control temperature, humidity also Co2 gas.

These models could be record and access to the data via internet by web browser and application on Android OS.

2.4 WATER FiT: Watering for growing plant system. Divided to 2 models

Simple Model – a basic watering control box which uses only 9 Volt of battery for over years lifetime and connects to maximum 4 independent valves. It could be connect to Hygrometer and rain gauge for enhancing watering efficiency for example, when it had enough rain,the equipment would be stop working or when the soil had appropriated humidity, it would be reduce watering. Not only its capability but could also set 100 watering time periods by connects to the Android Smartphone via Bluetooth. It is very convenience to install, just put the box to existed system.
Evergreen Model – would be release in nearly future which is watering system by separated parts of plants, in many positions or specific categories of plants. It would be cooperate with controlling system in the farm area and internet expert system such as watering plant by Evapotranspiration Ratio.

2.5 ENERGY FiT: Manage and storage energy system for efficiency using in the farm.

There is a ‘SUNFLOW’ inverter, technology for pumping water by solar energy. It would neither need to use battery nor engine so gasoline and engine oil charges would not be needed. It uses Algorithm to find Advance MPPT, the highest point of energy that would be enhance conversion of solar energy to electricity in every level of light intensity by using 2 – 10 solar cell panels (depend on size of pump motor) to reduce energy and to save cost. It could also adjust to the lowest power to prevent, the damage when have not enough water, the damage from lightning, dust protecting and water resistance according to IP55 standard.

See more detail of SUNFLOW system.

In the future, NECTEC is expecting to expand the agricultural information, from the previous developed research to apply in FAARM Alice which is the analytic equipment for plant processing, suggesting appropriated planting area, rain forecasting, finding appropriated watering and nutrition, monitoring the growth and planning for cropping. The technology will be increase the quality and quantity of farm products also to express sales information for rise up Thai Farmers’ profit.

FAARM AlicE : Analytics Engines

NECTEC is ready to support Thai Farmers with many various of researches according to NECTEC FAARM series – A set of farm technologies for agricultural industry which is supported farmers and agricultural entrepreneurs to apply in their context of work. However feedback from users are worth for us to improve and develop innovation by Thai Researchers for our own farmers and agricultural entrepreneurs in Thailand 4.0 era.

More information

Business Development and Technology Transfer (BTT)

National Electronics and Computer Technology Center (NECTEC)

Tel: +662 564 6900 ext 2346, 2351-2354, 2357, 2382, 2383, 2399

E-mail: business[at]nectec.or.th

OnSpec: NECTEC SERS Chips in Forensic Detection

dtmd-saw — Wed, 28 Jul 2021 08:53:29 +0000

Innovation

OnSpec: NECTEC SERS Chips in Forensic Detection

Raman scattering is a phenomenon that describes a shift in frequencies between a light that is illuminating a material and a fraction of the scattered light from that material. The frequency shift is due to molecular vibrations of the material. Different materials exhibit different fashions of molecular vibrations and therefore produce Raman scattered light at distinctive frequencies. In other words, the amount of frequency shift is unique to each material. Therefore, Raman scattering allows us to identify and differentiate the materials under study from one another.

The effect of Raman scattering is typically weak, plus the presence of fluorescence can make Raman signals (spectra) difficult to detect. The problem has been overcome by the technique of Surface-Enhanced Raman Spectroscopy (SERS), which is the extension of the standard Raman Spectroscopy. The main difference between SERS and Raman Spectroscopy is the incorporation of metallic nanostructures or colloids, which results in the amplification of electromagnetic fields generated by the excitation of localized surface plasmons when the sample is illuminated by a light source. Hence, SERS allows for signal enhancements up to 10 orders of magnitude. [1] This improvement enables further spectra collections from samples that cannot be detected using the standard Raman Spectroscopy.

Figure 1 : Raman scattering and surface-enhanced Raman scattering (SERS)

Surface Enhanced Raman Spectroscopy (SERS) is a promising tool with several great potentials that can aid procedures in the field of forensic investigation. The advantage of SERS is that it requires minimal amount of sample which is important since in many cases in criminal investigations, there is not always a large quantity of samples available. The process is also rapid and repeatable. Several applications of SERS in forensic science have already been studied. Firstly, questioned document examinations can benefit from the ability to identify various type of pen inks and printer inks (toners) on papers. [1] Its detection capability can extend to include paints on canvas or other fiber materials. [2] Another branch of application is the detection of explosives. [1,3] Moreover, illicit drugs and controlled substances can also be identified. [1] Many studies have also tried to use SERS to identify biological materials including DNA, blood, and body fluids such as saliva, urine and serum. [1,2]

The advancement of SERS depends on the fabrications of metallic-incorporated structures that will handle compounds of material under study. At NECTEC, researchers have successfully fabricated SERS chips, called OnSpec, which are silver nanorods on a silicon substrate, as shown in Figure 2. Silver or gold decorated on nano-patterned templates, is another technique that researchers at NECTEC have begun work on. The researchers have used their SERS chips to detect pen inks, explosive substances, illicit drug, pesticides and biomolecules including Zika virus, Dengue virus and tuberculosis. In the first installment of this article series, the detection of pen inks by various SERS techniques will be discussed in the following sections.

Figure 2 : (a) OnSpec in use. (b) Metallic nanostructures of the NECTEC SERS chip.

Pen ink detection by SERS

The study of pen ink detection by SERS at NECTEC began with collections of ink data by direct measurements of Raman Spectroscopy, as well as, by using the SERS chips to measure extractions of the inks on paper. Ink from 150 different pens consisting of water, oil or gel base, in red, black and blue color, was collected on paper. Three types of Raman spectrometers (Figure 3) were used, including the handheld Raman spectrometer, the portable Raman spectrometer, and the lab-grade Raman mapping systems (one at NECTEC, and the other at Central Institute of Forensic Science, Thailand). The initial results showed that the direct Raman measurement from any of these systems suffered from fluorescence interference and low signal to noise ratio. However, good results were obtained from our SERS chips, OnSpec, where fluorescence was suppressed and the Raman signal was highly enhanced, as exhibited in Figure 4.

Figure 3 : Raman spectrometers in use for the studies at NECTEC: (a) handheld Raman system, (b) portable Raman system, and (c) high-performance Raman microscope.

Figure 4 : Example of Raman spectra as measured from black pen ink by conventional Raman spectroscopy and SERS.

Furthermore, it was found that the measured spectra by OnSpec changed with time. This is a challenge as well as a benefit in that samples should be measured right away to prevent uncertainty from the Raman measurements. However, this time-dependent attribute will allow us to identify the age of the ink under investigation, which is beneficial and can help in the case of document forgery.

The current measurement technique using SERS chip still posts two major issues. The first one is that the current ink extraction method damages the document. This is because a solvent needs to be dropped onto the actual questioned document in order to dissolve and extract the ink and transfer it to a SERS chip for measurements. Ideally, there should be no damage on the questioned documents since most likely they are the only form of evidence available. So, eliminating the damages brought upon the questioned documents is the issue that needs fixing fast. The second issue is that SERS for questioned documents is a technique that needs developments in its discrimination power to be legally approved. Other approved methods, which currently are the most accurate, include thin-layer chromatography (TLC) and using experts in handwriting analysis (graphology) to detect forgery or counterfeit. So accuracy plus easy handling and non-damaging procedures, are aspects that SERS need to acquire in order to become the mainstream technique of ink detection in forensic study.

With those concerns in mind, NECTEC researchers have begun work on a new technique using certain type of polymer as the substrates for SERS chips. The preliminary results have shown promising outcomes in eliminating the damage upon the questioned documents. Nevertheless, more work is needed to fine-tune this technique, improve its discrimination power, and increase its library of collected ink data.

References:

[1] C. Muehlethaler, M. Leona, and J. R. Lombardi, Anal. Chem. 2016, DOI: 10.1021/acs.analchem.5b04131.

[2] B. Sharma, R. Frontiera, A. Henry, E. Ringe, and R. Van Duyne, SERS: Materials, applications and the future, Materials Today, Vol. 15, No. 1-2, Jan-Feb 2012.

[3] N. Nuntawong, P. Eiamchai, S. Limwichean, B. Wong-ek, M. Horprathum, V. Patthanasettakul, A. Leelapojanaporn, S. Nakngoenthong, P. Chundaudom, Forensic Sci. Int. 2013, 233, 174-178.

Developers

Dr. Noppadon Nuntawong, Dr. Nutthamon Suwanmonkha, Dr. Pitak Eiamchai

Optical Thin-Film Laboratory (OTL)

National Electronics and Computer Technology Center (NECTEC), Thailand

https://www.facebook.com/OTL.NECTEC/

Contact Information

For those interested in ‘OnSpec’ producing and licensing, please contact

Business Development and Technology Transfer (BTT)

National Electronics and Computer Technology Center (NECTEC)

Tel: +662 564 6900 ext 2346, 2351-2354, 2357, 2382, 2383, 2399

email: business[at]nectec.or.th

MuEye

dtmd-saw — Wed, 28 Jul 2021 08:47:50 +0000

Innovation

MuEye

Light microscope is known as a basic scientific instrument which is mostly available in laboratories or schools. It magnifies small objects and give not-naked-eye visible details. Therefore, it is a powerful learning tool for everyone especially students in scientific program. Although microscope is important for learning, many schools cannot afford this equipment as well as other relevant costs (i.e. lens maintenance, temperature and humidity controlled room, and external camera for image capture. Researcher from Photonics Technology Laboratory (PTL), National Electronics and Computer Technology Center (NECTEC), National Sciences and Technology Development Agency (NSTDA) then developed self-attached-flexible-polymer lens which can be easily attached onto camera of smartphone or tablet, and use as a personal microscope. The lens was named MuEye pronounced as Mu-Eye which means eyes for seeing micron-size objects.

MuEye lens differs from other commercial magnified lenses due to the patent-pending moldless fabricating process. Our technique gives high-quality lens with controllable magnifications ranging from 1 to 200 times by varying fabricating temperature and nozzle moving speed. This research will allow low-cost lens manufacturing for mobile microscope. We also designed a sample stand which has build-in light source, adjustment knob and ability to use with both front and back camera of smartphone device. MuEye prototype was first launched to market in 2014 via crowdfunding in product name “TWI-VIS” and can raise fund more than 6000 USD. This funding was spend on mass production R&D.

Currently, MuEye lens fabricating technologies have transferred to licensee and the products in market have various magnifications such as 25,50 and 100 times.

Crowdfunding link:

https://www.indiegogo.com/projects/dual-microscope-lens-for-mobile-devices-twi-vis#/

Publication link:

https://dx.doi.org/10.1371/journal.pone.0146414

https://light2015blog.org/2015/10/29/digital-microscope-in-your-hand/

Benefit

– A flexible polymer can be attached on camera of portable devices, i.e. smart phone or tablet. No need of using glue, magnet or clip on.

– With our patented manufacturing process, MuEye Lens has clearer surface and higher magnification than ordinary lens in current market.

– This low-cost digital microscope will motivate self learning among students.

Click here to download MuEye guided book

“The Adventure story of MuEye Boy: Lost in the crustacean world”

MuEye Lens

– Serie S: Magnification 25,50 and 100 times for Educational tools

– Serie MB: Magnification 250 times for professional work

How to use

Click here to enlarge the instruction

Target Users

Serie S: Teachers and students in scientific curriculum

Serie MB: Professional who needs a portable digital microscope

Team

Photonics Technology Laboratory (PTL)

Intelligent Device and System Research Unit (IDSRU), NECTEC

www.facebook.com/MuEyeLens

Product status

Serie S: Technology transfer to company, please contact MuISet company for product quotation( www.muiset.com )

Serie MB: Product developing, to be launched in NSTDA’s Investor Day (September 2016)

More information

https://www.muiset.com

Solar Pump Inverter: SUNFLOW

dtmd-saw — Wed, 28 Jul 2021 08:43:08 +0000

Innovation

Solar Pump Inverter: SUNFLOW

SUNFLOW is the inverter for solar pumping system without battery support. It can operate efficiently under wavering sunlight throughout the day. Its protection against lightning surges and protection against dust and water (at IP-55 level) make it a perfect solution for harsh outdoor environments.

Benefit:

High efficiency, low heat dissipation, strong water flow
Works with any type of AC pumps up to 3HP
Employs Maximum Power Point Tracking (MPPT)
Wide input range from 60V to 440 VDC
Supports both 1-phase and 3-phase pumps
No battery required. Save cost on battery installation and maintenance

Specification:

Input Voltage 60-440Vdc
Input Current 0-8Adc
Max Frequency output 65Hz
Max Motor Current 12A
Operating Temp Range 5-40 Degree Celsius
Over Voltage Shutdown 450Vdc
Under Voltage Shutdown 60Vdc
Rated Motor
*** 3 phase motor 220V 50-60Hz 3phase 0.5-3Hp
*** Single phase PSC 220V 50-60Hz 0.5-2.5Hp
*** 2 phase or PSC removed capacitor run 220V 50-60Hz 0.5-3Hp

Team:

Industrial Prototype and Product Development Laboratory (IPP)

Innovation and Engineering Research Unit (IENRU)

E-mail: ipp@nectec.or.th

More information:

https://www.leonics.co.th

OnSpec: NECTEC SERS Chips

dtmd-saw — Wed, 28 Jul 2021 08:30:12 +0000

Innovation

OnSpec: NECTEC SERS Chips

Raman spectroscopy is a spectroscopic technique used to identify of biochemical substances or biomolecules. Raman spectroscopy relies on inelastic scattering, also known as Raman scattering, when a laser interacts with the molecules. The changes, or the shifts, of the energy of the laser photons can give information about the interacted molecules. This technique has been recently used to detect chemical or biomolecular substances, i.e., narcotic drugs, trace amount of materials, and emerging diseases.

However, most materials give out small Raman signals. In 1974, Fleischmann, et al. successfully developed a technique to amplify the Raman signals up to 6 times with highly roughened silver surfaces. The laser photons that interact with the free electrons in the metals will cause the resonance in these electron cloud. Such phenomenon, called the surface plasmon resonance, helps the energy transfers among the molecules within the proximity. This helps release the energy with higher Raman signals.

Generally, the Raman scattering can be observed when the conditions meet these 2 mechanisms. The first mechanism is the electromagnetic enhancement, which is caused by the stimulation of the surface plasmon resonance within the metal surfaces. The second is the chemical absorption of the molecules, and highly depends on the wavelength of the laser photons, the optical properties of the metals, and the surface structures of the substrates.

Until recently, there have been several processes to develop the substrates that help amplify the Raman signals and their efficiency. The surface-enhanced Raman scattering (SERS) substrates have been a subject of interests among scientists. Theoretically, the SERS substrates can be developed from gold, silver, copper, or other noble metals, and have been widely used in the detections of the biomolecules and chemical molecules.

The NECTEC SERS Chips (Fig. 1) has been developed with our advanced thin-film depositions with the sputtering system by Optical Thin-Film Technology Laboratory (OTL), National Electronics and Computer Technology Center (NECTEC). We have successfully fabricated thin-film-based nanostructures of silver metals (Fig. 2) with unique properties to highly enhance the Raman signals. Our SERS Chips, which come in full packages at a cost-effective price, can yield up to 100 times the Raman signals when compared with those from the commercially available products. The NECTEC SERS Chips can be readily used for trace detections of the trace amount of many substances, which are no longer detectable from conventional Raman spectroscopic technique.

To use the NECTEC SERS Chips, operators can simply swab or wipe an area suspected to be exposed to chemical substances of interest, even though imperceptible to the naked eyes. The swabbed sampling can be quickly dissolved in a solvent. A small volume (2-3 microliters are sufficient) is then dropped on the surface of the NECTEC SERS chips. And now the operators can go right to the characterizations or analyses with any Raman spectroscopes (Fig. 3). The NECTEC SERS Chips are fully compatible with all research-grade, portable, or even handheld Raman spectrometers available in the markets.

Currently, the NECTEC SERS Chips are successfully utilized in a wide ranges of applications, for examples, trace detections in agricultural products (pesticides), forensic investigations (narcotic drugs, explosive substances, pen inks), and medical studies (biomolecules). OTL has published academic journals and filed several patent applications with complete protections of our inventions.

Team:

Optical Thin-Film Technology Laboratory (OTL); National Electronics and Computer Technology Center (NECTEC); e-mail: otl[at]nectec.or.th
https://www.facebook.com/OTL.NECTEC/

More information:

Business Development and Technology Transfer (BTT)

National Electronics and Computer Technology Center (NECTEC).

Tel: +662 564 6900 ext2346, 2351-2354, 2357, 2382, 2383, 2399

e-mail: business[at]nectec.or.th

OnSpec: NECTEC SERS Chips in Forensic Detection

AflaSense Plus: Rapid and Portable Aflatoxin Sensor

dtmd-saw — Wed, 28 Jul 2021 07:14:08 +0000

Innovation

AflaSense Plus: Rapid and Portable Aflatoxin Sensor

AflaSense Plus is the world’s first aflatoxin detector that utilizes electrochemical detection method with innovative graphene-based sensing strip prepared by printing technology. It can be used for screening test to detect aflatoxin contamination in agricultural products, agriculture-derived products, human and animal food with good resolution, high accuracy and rapid detection time. In addition, it is compact, portable, low-cost and flexible to use with diverse chemicals including LAMP, enzyme and antibody for detections of aflatoxin species.

The body of AflaSensor Plus is made of an aluminum alloy that conforms to the standard of medical-grade instruments. It is durable, shock-resistant, electromagnetic interference-free and resistant to chemical corrosion. Presently, ARDA AflaSensor Plus is on the process to be certified by Association of Official Analytical Chemists (AOAC) Standard in Thailand.

Benefit

Alfatoxin is a very dangerous food contaminant that must always be screened for human health protection. AflaSensor Plus can be used for rapid aflatoxin detection in raw food products. Presently, aflatoxin detection is mainly based on colorimetric method, which requires long processing/analysis time, skillful color reading operator and intensity-dependent color indicator. Therefore, AflaSense Plus can be alternatively sensor for detection of aflatoxin providing simple and easy processes, low cost, and high accuracy.

Specification:

Innovative, modern and reliable
High accuracy (compatible to gold standard HPLC)
Low cost and high profit
Easy to use, rapid and real time
Portable with low –power battery

How to use:

The detection procedure includes sample extraction for 40 minutes, incubation for 30 min, and dropping the final solution on the graphene-based sensing strip and taking the output reading on LCD display.

Awards:

Gold price in the 44th International Exhibition of Inventions of Geneva on April 2016, Switzerland. The title of “ARDA AflaSensor Plus: Rapid and Portable Aflatoxin Sensor”
Special price by Korea Invention Promotion Association (KIPA) in the 44th International Exhibition of Inventions of Geneva on April 2016, Switzerland. The title of “Rapid and Portable Aflatoxin Sensor, AflaSense”
Certificate in Chemical Sciences and Pharmacy by National Research Council of Thailand (NRCT) on June 2015. The title of “Portable rapid and low cost aflatoxin sensor with LAMP-Electrochemical detection kit”
Gold price in Seoul International Invention Fair (SIIF) on Nov 2013, Korea. The title of “Rapid and Portable Aflatoxin Sensor, AflaSense”
Special price by International Warsaw Invention Show (IWIS) in Seoul International Invention Fair (SIIF) on Nov 2013, Korea. The title of “Rapid and Portable Aflatoxin Sensor, AflaSense”

Team:

1. National Electronics and Computer Technology Center (NECTEC)

Dr. Adisorn Tuantranont
Mr. Assawapong Sappat
Miss. Chanpen Karuwan
Miss. Patiya Pasakon
Miss. Saithip Pakapongpan

2. The National Center for Genetic Engineering and Biotechnology (BIOTEC)

Mrs. Wansika Kiatpathomchai
Miss. Jantana Kampeera

Contact:

Dr. Adisorn Tuantranont

Thai Organic and Printed Electronics Innovation Center (TOPIC)

National Electronics and Computer Technology Center (NECTEC)

E-mail: adisorn.tuantranont@nectec.or.th

Website: https://www.graphenethailand.com

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AflaSense Plus: Rapid and Portable Aflatoxin Sensor

Benefit

Specification:

How to use:

Awards:

Team:

1. National Electronics and Computer Technology Center (NECTEC)

2. The National Center for Genetic Engineering and Biotechnology (BIOTEC)

Contact: