Article
Multidisciplinary Sciences
Te Ma, Tetsuya Inagaki, Satoru Tsuchikawa
Summary: This study developed a time-resolved transmittance spectroscopic method to validate the light scattering changing characteristics in kiwifruit during shelf-life and in cold storage conditions, and successfully formulated a mathematical model to classify the stages of kiwifruit softening.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Biomedical
Vysakh Vasudevan, Sujatha Narayanan Unni
Summary: Spatially resolved diffuse reflectance spectroscopy (SRDRS) is a non-invasive optical technique that aids in clinical diagnosis by collecting backscattered light from multi-layered tissue. This study utilizes finite element models to study light tissue interactions and extract tissue optical parameters, showing agreement with the expected tissue parameters through inverse modeling.
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING
(2022)
Article
Optics
Alberto Ghezzi, Armin J. M. Lenz, Fernando Soldevila, Enrique Tajahuerce, Vito Vurro, Andrea Bassi, Gianluca Valentini, Andrea Farina, Cosimo D'Andrea
Summary: In this work, we propose a time-resolved multispectral fluorescence microscopy system based on the Single-Pixel Camera (SPC) scheme, which achieves high resolution and short measurement time using Compressive Sensing (CS) technology. Data Fusion (DF) with a high-resolution camera is used to address the low spatial resolution issue typical of SPC. By integrating hardware and algorithms, this system reduces the number of measurements while preserving the information content, allowing for a zoom feature without moving the optical system. The system is characterized in terms of spatial, spectral, and temporal properties, and is validated on a cellular sample.
Article
Thermodynamics
Paul Josef Binderbauer, Andreas Hammer, Elisabeth Lachner, Nikolaus Klingenstein, Thomas Kienberger
Summary: The timely transient energy supply or insufficient temperature levels of industrial waste heat hinders its full exploitation. Investigating industrial waste heat in a time resolved manner is necessary but widely disregarded. This study presents a first-of-its-kind approach to generate time resolved industrial waste heat profiles for all industrial subsectors.
APPLIED THERMAL ENGINEERING
(2023)
Article
Chemistry, Physical
Anthony V. Sica, Ash Sueh Hua, Helen H. Lin, Ellen M. Sletten, Timothy L. Atallah, Justin R. Caram
Summary: We demonstrate a method called Spectrally selective Time-resolved Emission through Fourier-filtering (STEF) for separating and resolving the dynamics of multiple emitters without using conventional filters. Our approach utilizes a fixed path-length imbalanced Mach-Zehnder interferometer to interfere and cancel (or enhance) specific spectral signatures corresponding to one emissive species. We show the range and utility of STEF by performing various procedures, including filtering laser scatter, separating fluorescence lifetimes, and resolving overlapping fluorescent stains.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Optics
Chanjun Sun, Ben Aernouts, Wouter Saeys
Summary: This research investigates the mismatches between measurements and simulations by studying the influences from light source and the incident and detection angle on diffuse reflectance profiles. After reducing the mismatches caused by these factors, metamodels linking optical properties with diffuse reflectance profiles were built based on measured and simulated data, both achieving high prediction performance with R-2 values above 0.96, allowing for the creation of simulation-based metamodel applicable to different measurement configurations.
Article
Biochemical Research Methods
Erica Dao, Gabriella Gohla, Phillip Williams, Peter Lovrics, Fares Badr, Qiyin Fang, Thomas J. Farrell, Michael J. Farquharson
Summary: A system combining time-resolved fluorescence and diffuse reflectance was developed to detect the optical properties of breast tissue. Using a dataset that combines both techniques, the sensitivity and specificity of tissue classification were significantly improved. Further research on fibroglandular tissue could enhance the system for intraoperative tumor margin detection.
JOURNAL OF BIOMEDICAL OPTICS
(2023)
Article
Spectroscopy
Jonathan Merten, Erin Nicholas, Shealyn Chestnut, Shawnda Ethridge, Hannah Bariola, Mary Elizabeth Foster
Summary: The absolute atomized mass of a laser-induced yttrium plasma was measured under various noble and oxidizing cover gases using high resolution atomic-absorption spectroscopy mapping. The maximum spatial extent of the plasma decreased with the molar mass of the cover gas. Time-resolved masses measured under oxidizing atmospheres showed continuous net loss from the first measured delay. Plasmas under helium and argon atmospheres also exhibited net loss of atomized yttrium beyond 4 mu s, due to an unknown mechanism.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Shiny Maity, Brad D. D. Price, C. Blake Wilson, Arnab Mukherjee, Matthieu Starck, David Parker, Maxwell Z. Z. Wilson, Janet E. E. Lovett, Songi Han, Mark S. S. Sherwin
Summary: We propose a time-resolved Gd-Gd electron paramagnetic resonance (TiGGER) technique at 240 GHz to monitor inter-residue distances in proteins' mechanical cycles in solution state. TiGGER utilizes Gd-sTPATCN spin labels with favorable properties, including spin-7/2 EPR-active center, short linker, narrow intrinsic linewidth, and minimal anisotropy at high fields. By applying TiGGER, we observed that the C-terminus and N-terminus of AsLOV2 separate within 1 s upon light activation and relax back to equilibrium with a time constant of approximately 60 s. TiGGER also revealed that the light-induced long-range mechanical motion is decelerated in the Q513A variant of AsLOV2, which is correlated with the slowed relaxation of the optically excited chromophore as reported in recent literature. TiGGER has the potential to complement existing methods for studying triggered functional dynamics in proteins.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Optics
Manita Rai, Wesley E. Deeg, Baozhu Lu, Katrina Brandmier, Ashtyn M. Miller, Darius H. Torchinsky
Summary: We propose a novel time-resolved, optical pump/NIR supercontinuum probe spectrometer suitable for oscillators. A NIR supercontinuum probe spectrum is generated in a photonic crystal fiber, dispersed and raster scanned into a single element detector. Simultaneous measurement of bare reflectance R and its photoinduced change Delta R is achieved through dual modulation of pump and probe beams at disparate frequencies, allowing for continuously self-normalized measurement of Delta R/R. Example data on a germanium wafer sample demonstrate high spectral resolution, temporal resolution pre-recompression, and sensitivity comparable to standard time-resolved, amplifier-based pump-probe techniques.
Article
Physics, Applied
Marcelo Saito Nogueira, Michael Raju, Jacqueline Gunther, Siddra Maryam, Michael Amissah, Huihui Lu, Shane Killeen, Micheal O'Riordain, Stefan Andersson-Engels
Summary: Understanding the biochemical and microstructural aspects of carcinogenesis is crucial for developing new technologies for accurate colorectal cancer detection. In this study, tissue parameters were extracted by fitting diffuse reflectance spectra within a certain range and machine learning models were used to differentiate between mucosa and tumor tissues. Successful classification with high accuracy was achieved, showing potential for rapid diagnosis of colorectal neoplasia.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Pengtao Xu, Jin Suntivich
Summary: In situ stimulated Raman spectroscopy (SRS) is introduced as a method to monitor the evolution of electrochemical reactions with millisecond resolutions and enhanced sensitivity. The SRS methodology can identify generated chemicals during electrochemical reactions and observe the change in their concentration over time.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Review
Chemistry, Multidisciplinary
Yuan Zhang, Junfeng Dai, Xiangli Zhong, Dongwen Zhang, Gaokuo Zhong, Jiangyu Li
Summary: Ferroelectric materials have been a key research topic due to their wide range of modern electronic and photonic applications. The ultrafast dynamics of ferroelectrics, explored through time-resolved pump-probe spectroscopy, have drawn considerable attention for their potential in understanding and utilizing dynamic processes. Through studying the ultrafast dynamics, insights can be gained to advance next-generation devices.
Review
Energy & Fuels
Yangguang Hu, Chao Gao, Yujie Xiong
Summary: The time-resolved X-ray absorption technique plays a crucial role in understanding the mechanisms of photochemical reactions by capturing electronic and geometric changes in real time, providing guidance for designing advanced solar energy conversion systems.
Article
Biochemical Research Methods
Daniel Milej, Androu Abdalmalak, Ajay Rajaram, Amandeep Jhajj, Adrian M. Owen, Keith St Lawrence
Summary: This study investigates the application of regression analysis to single-channel time-resolved near-infrared spectroscopy (trNIRS) data for improved isolation of brain signals and reduction of extracerebral layer contamination. Results show that incorporating regression analysis using a signal sensitive to the extracerebral layer significantly enhances the extraction of cerebral oxygenation signals, indicating a potential for further advancements in depth sensitivity for trNIRS.
JOURNAL OF BIOMEDICAL OPTICS
(2021)
Article
Agriculture, Dairy & Animal Science
Matteo Chincarini, Lina Qiu, Lorenzo Spinelli, Alessandro Torricelli, Michela Minero, Emanuela Dalla Costa, Massimo Mariscoli, Nicola Ferri, Melania Giammarco, Giorgio Vignola
Article
Pediatrics
Agnese De Carli, Bjorn Andresen, Martina Giovannella, Turgut Durduran, Davide Contini, Lorenzo Spinelli, Udo Michael Weigel, Sofia Passera, Nicola Pesenti, Fabio Mosca, Alessandro Torricelli, Monica Fumagalli, Gorm Greisen
ARCHIVES OF DISEASE IN CHILDHOOD-FETAL AND NEONATAL EDITION
(2019)
Article
Biochemical Research Methods
Martina Giovannella, Lorenzo Spinelli, Marco Pagliazzi, Davide Contini, Gorm Greisen, Udo M. Weigel, Alessandro Torricelli, Turgut Durduran
BIOMEDICAL OPTICS EXPRESS
(2019)
Article
Neurosciences
Martina Giovannella, Davide Contini, Marco Pagliazzi, Antonio Pifferi, Lorenzo Spinelli, Rainer Erdmann, Roger Donat, Ignacio Rocchetti, Matthias Rehberger, Niels Koenig, Robert Schmitt, Alessandro Torricelli, Turgut Durduran, Udo M. Weigel
Article
Pediatrics
Bjorn Andresen, Agnese De Carli, Monica Fumagalli, Martina Giovannella, Turgut Durduran, Udo Michael Weigel, Davide Contini, Lorenzo Spinelli, Alessandro Torricelli, Gorm Greisen
PEDIATRIC RESEARCH
(2019)
Article
Endocrinology & Metabolism
Martina Giovannella, Bjorn Andresen, Julie B. Andersen, Sahla El-Mahdaoui, Davide Contini, Lorenzo Spinelli, Alessandro Torricelli, Gorm Greisen, Turgut Durduran, Udo M. Weigel, Ian Law
JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM
(2020)
Article
Biochemical Research Methods
Ileana Pirovano, Rebecca Re, Alessia Candeo, Davide Contini, Alessandro Torricelli, Lorenzo Spinelli
BIOMEDICAL OPTICS EXPRESS
(2020)
Article
Agronomy
Maristella Vanoli, Robbe Van Beers, Nadja Sadar, Anna Rizzolo, Marina Buccheri, Maurizio Grassi, Fabio Lovati, Bart Nicolai, Ben Aernouts, Rodrigo Watte, Alessandro Torricelli, Lorenzo Spinelli, Wouter Saeys, Angelo Zanella
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2020)
Article
Food Science & Technology
L. Marinoni, T. M. P. Cattaneo, M. Vanoli, S. Barzaghi
Summary: A mild solar drying process was conducted on melon slices, and NIR spectra were continuously collected using a portable spectrometer. Partial least square (PLS) regressions showed good prediction ability for moisture content, water activity, and color parameters. These preliminary data suggest the potential applicability of NIR spectroscopy in monitoring the dehydration process.
EUROPEAN FOOD RESEARCH AND TECHNOLOGY
(2023)
Proceedings Paper
Engineering, Biomedical
Lorenzo Spinelli, Davide Contini, Antonio Pifferi, Alessandro Torricelli, Udo M. Weigel, Helene Isler, Daniel Ostojic, Heidrun Wabnitz, Martin Wolf
DIFFUSE OPTICAL SPECTROSCOPY AND IMAGING VII
(2019)
Proceedings Paper
Engineering, Biomedical
Marta Zanoletti, Giacomo Giacalone, Davide Contini, Rebecca Re, Lorenzo Spinelli, Bruno Germinario, Luisa Roveri, Alessandro Torricelli
DIFFUSE OPTICAL SPECTROSCOPY AND IMAGING VII
(2019)
Proceedings Paper
Engineering, Biomedical
L. Colombo, M. Pagliazzi, S. Konugolu Venkata Sekar, D. Contini, A. Dalla Mora, L. Spinelli, A. Torricelli, T. Durduran, A. Pifferi
DIFFUSE OPTICAL SPECTROSCOPY AND IMAGING VII
(2019)
Meeting Abstract
Clinical Neurology
Giacomo Giacalone, Marta Zanoletti, Rebecca Re, Bruno Germinario, Davide Contini, Lorenzo Spinelli, Alessandro Torricelli, Luisa Roveri
Meeting Abstract
Clinical Neurology
Luisa Roveri, Marta Zanoletti, Rebecca Re, Davide Contini, Lorenzo Spinelli, Alessandro Torricelli, Giacomo Giacalone
Meeting Abstract
Clinical Neurology
Giacomo Giacalone, Marta Zanoletti, Rebecca Re, Davide Contini, Lorenzo Spinelli, Alessandro Torricelli, Luisa Roveri
Article
Agronomy
Zeyang Bao, Qihang Zhou, Yan Yu, Wei Chen, Zhenfeng Yang, Shifeng Cao, Liyu Shi
Summary: Exogenous melatonin treatment can alleviate the chilling-induced browning in cold-stored peaches by upregulating gene expression and affecting DNA methylation levels to increase phenolic accumulation.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Guolong Li, Zhishu Tang, Zhongxing Song, Xinbo Shi, Changle Liu, Qiang Chen, Hongbo Liu
Summary: This study investigated the accumulation of flavonoids in Chinese sour jujube fruits from five different harvest times using a combined metabolomics and transcriptomics approach. A total of 1539 differentially accumulated metabolites (DAMs) and 11592 differentially expressed genes (DEGs) were identified. The biosynthetic pathways for flavonoids, flavones, and flavanols were significantly enriched. A regulatory network for flavonoids biosynthesis was built and key genes related to flavonoid biosynthesis were identified.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Xuejiao Zhang, Xiaoyuan Zheng, Ruirui Yang, Qihui Wang, Lu Bai, Di Gong, Ye Han, Dov Prusky, Yang Bi
Summary: UV-C radiation promotes flavonoid synthesis in potato tuber wounds during early healing by upregulating the expression and activities of key enzymes and transcription factors involved in the flavonoid synthesis pathway, as well as increasing ABA levels and signaling.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Jiaqi Xiao, Yunyun Xie, Xiangjin Kong, Kuan Peng, Hong Zhu, Yueming Jiang, Hongxia Qu
Summary: The study reveals the positive role of Ca2+ ATPase in litchi energy metabolism and senescence. Higher expression of LcACAs is associated with better storability in litchi cultivars. Additionally, LcACA2 is identified as a target of LcmiR482e and ATP application can downregulate the expression of LcmiR482e, contributing to delayed senescence in litchi.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Asunta Mukami, Bicko Steve Juma, Cecilia Mweu, Richard Oduor, Wilton Mbinda
Summary: This study employed the CRISPR-Cas9 system to mutate genes in cassava, resulting in an extended shelf life of cassava roots and improved yield stability and farmers' income.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Paulo Sergio Gularte, Samara Martins Zanella, Cristiano Andre Steffens, Marceli Buss, Janaiana Catarina da Silva, Willian Coser, Aquidauana Miqueloto, Cassandro Vidal Talamini do Amarante
Summary: This study evaluated the impact of nitric oxide application on fruit quality and anaerobic metabolism products. The results showed that nitric oxide at appropriate concentrations can reduce respiration and ethylene evolution rates, preserve firmness, and reduce metabolite production and decay incidence.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Yiting Li, Sicong You, Shasha Wu, Mengyao Wang, Jin Song, Weijie Lan, Kang Tu, Leiqing Pan
Summary: This study aimed to compare the discrimination ability and detection limit of visible and short-wave near-infrared hyperspectral imaging features and spectral information on early implicit bruised pears. Physical characteristics were more sensitive than chemical parameters for bruised pears during postharvest storage. The changes in spectral variations at specific wavelengths could explain the bruising changes in pears. Discrimination models based on selected spectral variables could effectively identify bruised pear areas, and the combination of imaging features and spectral variables achieved higher discrimination rates.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Yu Du, Mengyue Wang, Mengting Tong, Dengyun Wu, Jianzhou Chu, Xiaoqin Yao
Summary: This study investigated the effects of sucrose, brassinolide (BR), and their combination on the storage quality of kale sprouts. The results showed that the combined treatment improved the growth and development of sprouts, reduced oxidative stress, and inhibited nutrient loss. Furthermore, the combination treatment maintained the antioxidant capacity and nutrient content of kale sprouts.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Zhiwen Hu, Jing Wei, Weimin Zhang, Long Wu, Di Gong, Yue Xiang, Jialiang Liu, Zhengke Zhang
Summary: In this study, the researchers investigated the effect of melatonin (Mel) on the phytotoxicity and residues of the fungicide prochloraz (Pcz) in mango fruit during storage. The results showed that pretreatment with Mel reduced Pcz residues and alleviated phytotoxicity in the fruit. Mel also suppressed Pcz-induced oxidative stress and enhanced the detoxification capacity of the fruit.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Bin Duan, Okwong Oketch Reymick, Zhaoguo Liu, Yun Zhou, Xin Wang, Zhao Feng, Nengguo Tao
Summary: The monoterpene citral can enhance disease resistance and reduce fruit decay in postharvest citrus fruit. It increases the activity of certain enzymes and the content of specific compounds, as well as triggers the accumulation of plant hormones and metabolites. Gene expression analysis reveals that citral upregulates genes involved in the jasmonic acid pathway and phenylpropanoid biosynthesis.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Meiqi Li, Xinhua Zhang, Jiaoqi Li, Maratab Ali, Yuting Wang, Xiuling Liu, Fujun Li, Xiaoan Li
Summary: This research aimed to investigate the potential action mechanism of gamma-aminobutyric acid (GABA) in controlling Botrytis cinerea (B. cinerea) in tomato fruit. The findings showed that GABA treatment effectively reduced the disease incidence and lesion diameter of tomato fruit caused by B. cinerea. GABA triggered defense responses and up-regulated the expression of pathogenesis-related genes, while also inhibiting the expression of ethylene synthesis genes.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Heeduk Oh, Marti Pottorff, Lara Giongo, Charles M. Mainland, Massimo Iorizzo, Penelope Perkins-Veazie
Summary: This study evaluated a large set of blueberry cultivars to understand the relationship between mechanical texture and appearance characteristics at harvest and after storage, and tested multiple statistical models to predict shelf-life. The results showed that fruit characteristics measured at harvest or two weeks post-harvest can predict weight loss, texture change, and fruit wrinkling. These findings provide empirical data that blueberry breeders can use to select cultivars with extended shelf-life.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Haitao Yu, Liuli Song, Jingjing Han, Xiaoyu Yu, Yuzhen Wu, Zhifang Yu
Summary: This study found that H2S treatment can delay the senescence process of postharvest pakchoi by regulating antioxidant system, endogenous H2S and NO metabolism. H2S increased the activities of antioxidant enzymes by up-regulating the expression of enzyme genes, reducing the accumulation of harmful substances. Furthermore, H2S increased the content of cysteine and nitrate in pakchoi by regulating the expression of related genes and enzyme activities, thus slowing down the senescence of pakchoi.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Jasna Mastilovic, Zarko Kevresan, Dragan Kukolj, Renata Kovac, Dragana Ubiparip Samek, Stevan Stankovski, Gordana Ostojic, Marina Deric
Summary: This study analyzes the patent portfolio and trends of sensors in postharvest of fresh produce, providing insights into the development of sensing technologies in this area. China is the leading country in patent applications, and the patent themes include produce sorting and packaging, produce storage, and the development and application of sensors. The findings highlight the significant impact of these technologies on postharvest processes, particularly in quality and safety monitoring. Moreover, they are expected to facilitate the integration of artificial intelligence into postharvest processes, enhancing the coherence and efficiency of supply chains.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)
Article
Agronomy
Gal Nomberg, Gulab Chand Arya, Ekaterina Manasherova, Ofir Marinov, Oded Yarden, Hagai Cohen
Summary: Certain fleshy fruit species form a polyphenolic suberized peridermal skin to seal wounded skin and prevent invasion by pathogenic fungi.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2024)