Published Research

Delve deeper into how researchers across fields uncover new insights with UPRtek instruments.

Journal / Year / Research field

Artical Title / Authors / Model / Use / Exact location in paper

DOI / Original Article URL

Chronobiology International 

2015

Sleep science / aging / indoor lighting

Can sleep quality and wellbeing be improved by changing the indoor lighting in the homes of healthy, elderly citizens?

Sander B, Markvart J, Kessel L, Argyraki A, Johnsen K

MK350

Measured experimental indoor lighting settings after sunset, including irradiance for blue-enriched and blue-suppressed scenarios.

Methods > on-location indoor light measurements / Table 1

10.3109/07420528.2015.1056304
▸URL

MK350S-Premium-Screen-Bule-Hazard

Advanced Materials 

2017

Advanced materials / MOF / optical sensing

Optochemically Responsive 2D Nanosheets of a 3D Metal–Organic Framework Material

Chaudhari AK, Kim HJ, Han I, Tan JC

MK350N Plus

Recorded steady-state emission spectra and CIE 1931 chromaticity data.

Experimental Section > Materials Characterization, p.8 of 9

10.1002/adma.201701463
▸URL

CIE1931

Frontiers in Psychology

2019

Environmental psychology / museum lighting / art appreciation

Does Gallery Lighting Really Have an Impact on Appreciation of Art? An Ecologically Valid Study of Lighting Changes and the Assessment and Emotional Experience With Representational and Abstract Paintings

Pelowski M, Graser A, Specker E, Forster M, von Hinüber J, Leder H

MK350

Measured gallery lighting conditions including CCT, CRI, lux and CIE1931/RGB-related color-space information.

Methods > gallery lighting measurement

10.3389/fpsyg.2019.02148
▸URL

MK350S-Premium-Screen-Basic

Scientific Reports

2019

Obstetrics / healthcare environment / lighting design

The aesthetic nature of the birthing room environment may alter the need for obstetrical interventions

Wrønding T, Argyraki A, Petersen JF, Topsøe MF, Petersen PM, Løkkegaard ECL

MK350

Performed on-site light characterization of sensory and standard delivery rooms, including spectral irradiance and illuminance comparisons.

Materials and Methods > light characterization measurements

10.1038/s41598-018-36416-x
▸URL

Full featured spectrometer

Energies

2021

Photogrammetry / urban mock-up / scene lighting

Seven Different Lighting Conditions in Photogrammetric Studies of a 3D Urban Mock-Up

Bobkowska K, Burdziakowski P, Szulwic J, Zielinska-Dabkowska KM

MK350D

Measured illuminance, CCT, CRI and spectral power distribution for seven LED scene-lighting conditions.

Materials and Methods > lighting-source measurements

10.3390/en14238002
▸URL

MK350D metrics

Journal of Applied Ecology

2021

Urban ecology / light pollution / invertebrates

Urban street lighting differentially affects community attributes of airborne and ground-dwelling invertebrate assemblages

Lockett MT, Jones TM, Elgar MA, Gaston KJ, Visser ME, Hopkins GR

MK350 LED Spectrometer

Measured correlated colour temperature of urban streetlights used in the ecological field study.

Methods > Assessment of lighting

10.1038/s41598-018-36416-x
▸URL

CCT, CRI, Flicker and CQS Measurement

PLOS ONE

2021

Neuroscience / light exposure / fMRI

Afraid of the dark: Light acutely suppresses activity in the human amygdala

McGlashan EM, Poudel GR, Jamadar SD, Phillips AJK, Cain SW

MK350N Spectrometer

Assessed spectral characteristics of dim and moderate white-light stimuli at the eye for fMRI light-exposure blocks.

Materials and Methods > light stimulus spectral characteristics

10.1371/journal.pone.0252350
▸URL

uSpectrum - Load Data

Communications Chemistry 

2022

Analytical chemistry / photo-NMR

Sample illumination device facilitates in situ light-coupled NMR spectroscopy without fibre optics

Bramham JE, Golovanov AP

PG200N

Measured photon flux density at the exterior surface of the NMR tube near the sample volume.

Methods > In situ actinometry

10.1038/s42004-022-00704-5
▸URL

PG200N Screen PPFD

Plants

2022

Plant physiology / lettuce / photosynthetic activity

Effects of Light Spectral Quality on Photosynthetic Activity, Biomass Production, and Carbon Isotope

Tarakanov IG, Tovstyko DA, Lomakin MP, Shmakov AS, Sleptsov NN, et al.

PG100N

Measured spectra of lamp systems used for lettuce light-quality experiments under controlled PPFD and photoperiod.

Materials and Methods > light conditions

10.3390/plants11030441
▸URL

PFD-PPFD-screens

Plants

2022

Plant factory / medicinal herbs / LED spectra

The Impact of LED Lighting Spectra in a Plant Factory on the Growth, Physiological Traits and Essential Oil Content of Lemon Balm (Melissa officinalis)

Rihan HZ, Aljafer N, Jbara M, McCallum L, Lengger S, Fuller MP

MK350N Premium

Measured LED treatment spectra and adjusted light intensity to deliver the target PPFD for lemon balm cultivation.

Materials and Methods > growth conditions / lighting treatments

10.3390/plants11030342
▸URL

MK350N Premium

Acta Scientiarum. Agronomy

2023

Horticulture / lavender propagation / LED spectra

Effect of light spectra on stem cutting rooting and lavender growth

Peçanha DA, Moro Peña JA, Mendonça Freitas MS, Chourak Y, Urrestarazu M

MK350S LED

Measured spectra of LED treatments used during rooting and growing phases of Lavandula dentata plants.

Materials and Methods > LED light treatments

10.4025/actasciagron.v45i1.58864
▸URL

MK350S Premium with Purity, LUX and Lambda D

PLOS Biology

2023

Synthetic biology / plant optogenetics

Highlighter: An optogenetic system for high-resolution gene expression control in plants

Larsen B, Hofmann R, Camacho IS, Clarke RW, Lagarias JC, et al.

MK350S

Recorded spectra of monochromatic LEDs and mixed or enriched white-light regimes used in optogenetic experiments.

Methods > Bacterial photoswitching experiments and plant light treatments

10.1371/journal.pbio.3002303
▸URL

Incandescent and LED spectrums

Journal of the American Association for Laboratory Animal Science

2024

Laboratory animal science / avian welfare / lighting

A Comparison of LED with Fluorescent Lighting on the Stress, Behavior, and Reproductive Success of Laboratory Zebra Finches (Taeniopygia guttata)

Backx AG, Wu A, Tanner A, Fabian NJ

MK350N Premium

Monitored ambient cage-level lighting characteristics weekly and calculated flicker percent and index.

Materials and Methods > lighting regimens and spectral measurement

10.30802/AALAS-JAALAS-24-000009
▸URL

Flicker and Stroboscopic Effect metrics

Nature Communications

2024

Plant pathology / plant microbiome

Physiochemical interaction between osmotic stress and a bacterial exometabolite promotes plant disease

Getzke F, Wang L, Chesneau G, Böhringer N, Mensy F, et al.

PG100N

Measured the plant-growth light condition and photosynthetic photon flux density for the low-PAR treatment.

Methods > Gnotobiotic Flowpot experiments

10.1038/s41467-024-48517-5
▸URL

Spectrometer measures Grow Light spectrum

Remote Sensing

2024

Remote sensing / photogrammetry / machine vision

The Effect of Varying the Light Spectrum of a Scene on the Localisation of Photogrammetric Features

Burdziakowski P

MK350D

Measured spectra and recorded parameters for 12 different scene-lighting settings used in the photogrammetry experiment.

Materials and Methods > 2.1 Testing Station and 2.2 Lighting Settings

10.3390/rs16142644
▸URL

uSPECTRUM PC SW LOG Mode

AgriEngineering

2025

Agricultural engineering / spectroradiometer validation / crop lighting

Development of a Portable Spectroradiometer for Assessing the Light Environment in Crop Production

Dolgalev AP, Smirnov AA, Proshkin YA, Tikhonov PV, Burynin DA, Sokolov AV

PG200N

Used PG200N as a reference instrument for photon flux density, irradiance and spectral composition measurements.

Materials and Methods > reference measurements

10.3390/agriengineering7120405
▸URL

PPFD-350-800nm

Biology

2025

Plant biotechnology / stevia / LED spectra

The Impact of LED Light Spectra on the Growth, Yield, Physiology, and Sweetness Compound of Stevia rebaudiana

Aljafer N, Alrajhi A, Anderson von Trampe T, Vevers W, Fauset S, Rihan HZ

MK350S

Measured spectra of LED treatments and set PPFD for stevia growth, physiology and sweetness-compound experiments.

Materials and Methods > LED light spectra / growth conditions

10.3390/biology14020108
▸URL

MK350S Premium Basic List_TLCI

Journal of Imaging

2025

Dermatology / medical imaging / colour accuracy

Optimizing Digital Image Quality for Improved Skin Cancer Detection

Dugonik B, Golob M, Marhl M, Dugonik A

MK350

Measured lighting profiles for daylight, smartphone, dermoscope, studio, and medical-camera light sources; uSpectrum supported spectral analysis.

Materials and Methods > 2.1 Materials

10.3390/jimaging11040107
▸URL

uSpectrum measure blue light_compare

SLEEP 

2025

Sleep science / psychology / human-centric lighting

Blue light influences negative thoughts of self

Burge MT, Lumapas RA, Lander AC, Thomas BG, Phillips AJK, Cain SW

MK350N

Assessed spectral characteristics of blue-enriched and blue-depleted experimental lighting conditions.

Materials > Melagen lighting device

10.1093/sleep/zsaf034
▸URL

Blue Light Hazard Risk Group

Journal of Imaging

2025

Dermatology / medical imaging / colour accuracy

Optimizing Digital Image Quality for Improved Skin Cancer Detection

Dugonik B, Golob M, Marhl M, Dugonik A

MK350

Measured lighting profiles for daylight, smartphone, dermoscope, studio, and medical-camera light sources; uSpectrum supported spectral analysis.

Materials and Methods > 2.1 Materials

10.3390/jimaging11040107
▸URL

Blue Light Hazard Risk Group