Many of the abstracts link to full page pdf articles and others contain links to other websites that host the material. If you have an interesting application that you would like to share with us, please send your article to ContactUs@stellarnet.us.
David’s Fun Home Quarantine Review on Ultraviolet Light Applications and Proper Measurement Techniques
Many of our customers are designing UVC arrays to sanitize N95 masks and other medical equipment; they use our UV radiometers to help with the design and manufacturing process. David is trapped working at home as many of us are and before he left the office, he...
Spectroscopy from Home with Kimbo & our StellarNet COVID-19 Update
Kimbo's at home spectroscopy demonstration features the importance of paint color and lighting in your home. Kimberly shows us how she can use spectrometers to measure paint and control her lighting conditions in her kitchen to affect mood and behavior. Thanks Kim for...
Flashback Friday- Spectrometers in Space! Rugged, Reliable, StellarNet!
What do we mean by ruggedness and reliability when we talk about StellarNet spectrometers? One example in this weeks "Flashback Friday" is when StellarNet spectrometers were chosen to be part of the MISSE (Materials International Space Station Experiment), a joint...
Valentine’s Day App Note- The color of roses, the taste of chocolate, a splash of wine!
February 14th means love is in the air! The smell of roses, the taste of chocolate, the bubbly feel of wine on the palate. 250 million roses will be produced for this years’ Valentine’s Day. 73% of those will be red. Do you know why red is the most popular color?...
University Customer Spotlight: Monitoring Your Indoor Chemical Exposure
In January 2020, we spoke with Chen Wang about her recent publication, “The atmospheric chemistry of indoor environments”; Q&A is a combination of interview and paper info.Why should we care about the atmosphere in indoor environments? Humans increasingly spend...
University Customer Spotlight: Creating White Light using Rare-earth Doped Glass
The sun’s light shines down upon the earth, but if you are inside, it’s difficult to replicate the sun’s color using current residential lighting technologies. Almost 20% of the electricity used at home is from lighting. There is an ongoing global effort to design...
A Spectroscopy Feast- A Thanksgiving Helping of Spectroscopy for Food Quality Applications
Here in the United States, it’s almost Thanksgiving! It’s a time to give thanks and at StellarNet we’re thankful for our customers! So, until the end of the year, we’re offering a “Buy a NIR spectrometer, get the visible channel FREE special". This App Note provides a...
Holiday Beer Testing – SRM, EMC, & Lovibond: What’s your color?
For this week’s Feasibility Friday, David and Jason are testing the SRM, EBC, and Lovibond colors of beer from a local brewery. David has chosen some classic styles with published SRM values to compare to. These three color scales are popular in the beer...
Special Halloween Application Note: Ghostbusting with Spectroscopy
If there’s something strange in your neighborhood, who ya gonna call? StellarNet! Ghostbusters is always a favorite this time of year and so is watching those spooky ghost hunter reality shows. Don't you wonder if that weird glow in the lab is actually a...
End of Summer Spectrometer Publications from StellarNet Customers
Welcome back to school. To inspire you for the next year of research and teaching, here are some Stellar publications from this summer: VISION OF RED-WINGED BLACKBIRDS Researchers from Purdue University in conjunction with the USDA published a...
Application Note – The Raman Spectrum of Water
Water is arguably the most important chemical compound on our planet. As such, a great deal of scientific research has gone into understanding the structure and dynamics of water as it relates to the biochemical processes in our bodies, environmental science, and even...
Efficacy of 5-Aminolevulinic Acid in Photodynamic Detection and Photodynamic Therapy in Veterinary Medicine
T Osaki, I Yokoe, Y Sunden, U Ota, T Ichikawa… - Cancers, 2019 Abstract 5-Aminolevulinic acid (5-ALA), a commonly used photosensitizer in photodynamic detection (PDD) and therapy (PDT), is converted in situ to the established photosensitizer protoporphyrin IX (PpIX)...
Cold plasma treatment of ready-to-eat ham: Influence of process conditions and storage on inactivation of Listeria innocua
B Yadav, AC Spinelli, BN Govindan, YY Tsui… - Food Research International, 2019 Abstract Ready-to-eat (RTE) deli meat has been linked to several Listeria monocytogenes associated recalls. Recent studies demonstrated the potential antimicrobial effects of atmospheric...
Enhancing the sensitivity of a Nd3+,Yb3+:YVO4 nanocrystalline luminescent thermometer by host sensitization
L Marciniak, A Bednarkiewicz, K Trejgis… - … Chemistry Chemical Physics, 2019 Abstract Numerous methods are known to improve the relative temperature sensitivity of luminescent thermometers. These methods include optimization of the host material, the size of the...
Exploration of interfacial dynamics in squaraine based nanohybrids for potential photodynamic action
D Bagchi, A Halder, S Debnath, P Saha, SK Pal - Journal of Photochemistry and …, 2019 Abstract Photodynamic therapy (PDT) is a clinically approved, minimally invasive therapeutic procedure exhibiting cytotoxic effects toward malignant cells. Hydrophobic nature of most...
Alexandrite microchip lasers
M Fibrich, J Šulc, H Jelínková - Optics Express, 2019 Abstract We report on a continuous-wave alexandrite (Cr3+ :BeAl2O4) microchip lasers operating at 680.4 nm and 749.5 nm laser wavelengths. Microchip resonators were realized by dielectric mirrors directly deposited...
Luminescent and Scintillation Properties of CeAlO3 Crystals and Phase-Separated CeAlO3-CeAl11O18 Metamaterials
Abstract This work is dedicated to the growth process and investigation of luminescent and scintillation properties of CeAlO3 single crystals and CeAlO3/CeAl11O18 metamaterials under e-beam and α-particles excitation. It has been shown that cathodoluminescence and...
Impact of remote plasma oxidation of a GaN surface on photoluminescence properties
N Takada, N Taoka, T Yamamoto, A Ohta, NX Truyen… - Japanese Journal of …, 2019 Abstract The impact of oxidation of a GaN surface changing the oxidation temperatures and the oxidation time using remote oxygen plasma on photoluminescence (PL) properties are...
Novel easy to fabricate liquid crystal composite with potential for electrically or thermally controlled transparency windows
I Abdulhalim, PL Madhuri, M Diab, T Mokari - Optics Express, 2019 Abstract Switchable liquid crystal (LC) composites are a unique and attractive class of functional materials due to their extensive use in various applications including smart and privacy windows....
Enhancement of emission from indium in flowing liquid anode atmospheric pressure glow discharge using organic media
K Greda, S Burhenn, P Pohl, J Franzke - Talanta, 2019 Abstract The effect of addition of low molecular weight organic compounds, i.e. acids, salts and alcohols, on the emission measured from In with flowing liquid anode atmospheric pressure glow discharge optical...
Optical Method of Measuring the Temperature of Fluoride Crystals Activated by Yb3+ and Tm3+ Ions
BN Kazakov, OG Goriev, AR Khadiev, SL Korableva… - Physics of the Solid State, 2019 Abstract The fluorescence intensities ratio (FIR) method is applied for measuring the temperature inside the luminescent LiY0.8Yb0.2F4:Tm3+ crystal. The obtained results are used for...
Exploring VIS/NIR reflectance indices for the estimation of water status in highbush blueberry plants grown under full and deficit irrigation
A Ribera-Fonseca, E Jorquera-Fontena, M Castro… - Scientia Horticulturae, 2019 Abstract Remote sensing based on visible and near infrared (VIS/NIR) reflectance is being recognized as a promising option to estimate water status in crops. In this research, we explored...
Exciton dissociation in an NIR-active triohybrid nanocrystal leading to efficient generation of reactive oxygen species
J Patwari, H Joshi, H Mandal, L Roy, C Bhattacharya… - … Chemistry Chemical Physics, 2019 Abstract Lead sulfide (PbS) colloidal quantum dots (QDs) are emerging materials for fundamental studies because of their potential application in near infrared (NIR) light...
Current status and recommendations toward a virus standard for ballast water
Y Kim, SD Snow, V Reichel-Deland, M Maghsoodi… - Management of Biological …, 2019 Abstract Ballast water contains and transfers a variety of biological and non-biological materials between biomes. This study aimed to summarize published literature on the viruses found...
Label-free discrimination of single nucleotide changes in DNA by reflectometric interference Fourier transform spectroscopy
F Makiyan, F Rahimi, M Hajati, A Shafiekhani… - Colloids and Surfaces B …, 2019 Abstract Phenotypic variation – such as disease susceptibility and differential drug response – has a strong genetic component. Substantial effort has therefore been made to identify...
Saline wastewater treatment with purple phototrophic bacteria
T Hülsen, K Hsieh, DJ Batstone - Water Research, 2019 Abstract Biological removal of organics, nitrogen and from saline wastewaters is adversely impacted by high salinity, which can be a major concern for treatment of industrial or domestic saline wastewater. In...
UV-blocking High-tunnel Plastics Reduce Japanese Beetle (Popillia japonica) in Red Raspberry
ME Cramer, K Demchak, R Marini, T Leskey - HortScience, 2019 Abstract Insecticides are the primary tool raspberry growers use to control Japanese beetles (Popillia japonica), but reliance on pesticides is costly and there are risks to nontarget species. Based on...
Effects of Light Quality on Vegetative Cutting and In Vitro Propagation of Coleus (Plectranthus scutellarioides)
KH Cho, VY Laux, N Wallace-Springer, DG Clark… - HortScience, 2019 Abstract Coleus (Plectranthus scutellarioides) is an attractive and popular ornamental plant with propagation mainly achieved through vegetative cuttings. For commercial purposes, it is of interest to...
Continuous in-situ monitoring of nitrate concentration in soils–a key for groundwater protection from nitrate pollution
E Yeshnoa, S Arnonb, O Dahana Abstract Lack of real-time information on nutrient availability in cultivated soils inherently leads to excess application of fertilizers in agriculture. As a result, nitrate, which is a soluble, stable and mobile component of...
PEGylated β-NaGdF4/Tb@CaF2 Core/Shell Nanophosphors for Enhanced Radioluminescence and Folate Receptor Targeting
Y Ren, H Winter, J Rosch, K Jung, A Duross, M Landry… - ACS Applied Nano …, 2019 Abstract Lanthanide-doped nanocrystals have been examined extensively as contrast agents for various optical molecular imaging techniques. One of the greatest strengths of these...
Structural, optical, thermal, dielectric and mechanical studies of a new organic NLO material: L-isoleucinium p-toluenesulfonate monohydrate (LIPT)
M Suresh, SA Bahadur, S Athimoolam - Materials Science-Poland, 2019 Abstract In the present work, a new organic second order NLO material: L-isoleucinium p-toluenesulfonate monohydrate (LIPT) is synthesized and reported for the first time. The LIPT is crystallized in a...
Effects of sample pretreatment and particle size on the determination of nitrogen in soil by portable LIBS and potential use on robotic-borne remote Martian and agricultural soil analysis systems
XT Yan, KM Donaldson, CM Davidson, Y Gao, H Wu… - RSC Advances, 2018 Abstract Field determination of nitrogen in soil is of interest for both terrestrial and Martian applications. Improved management of soil nitrogen levels on Earth could benefit global food...
Hydrogen sulfide splitting using solar energy and hematite photo-anodes
SV Kuznetsov, AS Nizamutdinov, MN Mayakova… Abstract The forecast for the development of renewable energy [1], conducted by Fraunhofer ISE, showed that by 2030, humanity will reach the terawatt power generation capacity through photovoltaic devices. About 95 percent...
Innate resistance of PSII efficiency to sunlight stress is not an advantage for cyanobacteria compared to eukaryotic phytoplankton
L Beecraft, SB Watson, REH Smith - Aquatic Ecology Abstract The effects of acute solar radiation stress on photosynthetic efficiency in freshwater unialgal cultures representing three phytoplankton pigment groups were measured by pulse amplitude modulated fluorometry...
StellarNet Customer Spotlight – Launching Spectrometers and Careers
Harding RockSat-C Team standing in front of Launch Vehicle at NASA’s Wallops Flight Facility at Wallops Island launch site in Virginia. In Harding University’s Atmospheric and Space Research Team, Stellarnet’s spectrometers examine the cosmos...
Comparison of Sole-source and Supplemental Lighting on Callus Formation and Initial Rhizogenesis of Gaura and Salvia Cuttings
KJ Walters, AA Hurt, RG Lopez - HortScience, 2019 Abstract Variability in outdoor daily temperatures and photosynthetic daily light integrals (DLIs) from early spring to late fall limits the ability of propagators to accurately control propagation environments to...
Flowering, Stem Extension Growth, and Cutting Yield of Foliage Annuals in Response to Photoperiod
KJ Walters, AA Hurt, RG Lopez - HortScience, 2019 Abstract Foliage annuals are primarily grown for the aesthetic appeal of their brightly colored, variegated, or patterned leaves rather than for their flowers. Once foliage annuals become reproductive, vegetative...
Atmospheric Cold Plasma and Peracetic Acid–Based Hurdle Intervention To Reduce Salmonella on Raw Poultry Meat
S CHAPLOT, B YADAV, B JEON, MS ROOPESH - Journal of Food Protection, 2019 Abstract In Canada, Salmonella-related foodborne illness accounts for more than 88,000 cases annually. Poultry products represent one of the major vectors for the zoonotic transmission of...
Singlet oxygen quantum yields determined by oxygen consumption
LV Lutkus, SS Rickenbach, TM McCormick - Journal of Photochemistry and …, 2019 Abstract Quantifying singlet oxygen production from triplet photosensitizers typically requires spectroscopic techniques and specialty chemical traps. Herein we describe a novel method for...
Air Quality Researchers get a Practical Mobile Spectroscopic Solution from Bubbleology Research International (BRI)
For air quality testing, Bubbleology Research International (BRI) provides a spectroscopic and in situ solution on a mobile platform that leverages the strengths of traditional sampling methods – the mobility of satellite measurements with the...