Article
Chemistry, Inorganic & Nuclear
Sen Wang, Jize Cai, Ran Pang, Haiyan Wu, Yanqing Luo, Tao Tan, Weihong Yuan, Lihong Jiang, Chengyu Li, Hongjie Zhang
Summary: A series of novel non-gallate near-infrared long-persistent phosphorescence Mg2-xZnxSnO4:Cr3+ phosphors were synthesized and characterized. The optimized sample Mg1.4Zn0.6SnO4:0.005Cr(3+) showed the strongest photoluminescence intensity and all samples exhibited intense near-infrared long-persistent phosphorescence.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Multidisciplinary
Tu N. Nguyen, Svetlana V. Eliseeva, Ivana Martinic, Peggy L. Carver, Timothee Lathion, Stephane Petoud, Vincent L. Pecoraro
Summary: By combining pyrazine- and quinoxaline-based hydroximate building blocks ligands, we created water-soluble mixed-ligand metallacrowns (MCs) with extended absorption to the visible range. The Yb-III analogue showed improved photophysical properties in the near-infrared (NIR) range in cell culture media, making it suitable for NIR optical imaging in living HeLa cells.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Shaochen Zhou, Lotta Gustavsson, Gregory Beaune, Sourov Chandra, Jukka Niskanen, Janne Ruokolainen, Jaakko V. I. Timonen, Olli Ikkala, Bo Peng, Robin H. A. Ras
Summary: This work presents a general and efficient method to synthesize pH-responsive near-infrared (NIR) emitting gold nanoclusters by introducing aliphatic tertiary amine (TA) groups as ligands. The pH-responsive NIR emission is achieved through the protonation and deprotonation of TA groups, which induce electronic structure changes. The pH-responsive gold nanoclusters can serve as specific and sensitive probes for lysosomes in cells, offering non-invasive emissions without interference from intracellular autofluorescence.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Xiushang Xu, Rafael Munoz-Marmol, Serhii Vasylevskyi, Andrea Villa, Giulia Folpini, Francesco Scotognella, Giuseppe Maria Paterno, Akimitsu Narita
Summary: We synthesized a hexabenzoperihexacene (HBPH) with two incorporated octacene substructures, characterized by single-crystal X-ray analysis. The isomerization barrier of the (P,P)-/(P,M)-forms was estimated to be 38.4 kcal/mol, and resolution was achieved by chiral HPLC. The enantiomers exhibited opposite circular dichroism responses up to the near-infrared (NIR) region, with a high g(abs) value of 0.017 at 616 nm. HBPH demonstrated NIR emission with a maximum at 798 nm and an absolute PLQY of 41%. The excited-state photophysical properties of HBPH were investigated, revealing interesting rotational and/or conformational dynamics after excitation. These findings provide new insights into designing chiral nanographene with NIR optical properties for potential chiroptical applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yuan Jiang, Haibao Shao, Hangning Xu, Jiahao Yang, Yi Wang, Haonan Xiong, Pengyao Wang, Xilin Wang
Summary: An ultrafast and facile aqueous synthetic approach for CdTe/CdS core/shell quantum dots with emission from the green to near-infrared window has been reported. The CdTe/CdS QDs with emission wavelengths at 700 and 800 nm can be obtained within 20-45 minutes under optimized conditions, and the resulting QDs are highly luminescent without postsynthesis treatment. The influences of various experimental factors on the synthesis rate and luminescent properties of the CdTe/CdS QDs have been considered.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Chemistry, Applied
Uliana Tsiko, Oleksandr Bezvikonnyi, Dmytro Volyniuk, Boris F. Minaev, Jonas Keruckas, Monika Cekaviciute, Egle Jatautiene, Viktorija Andruleviciene, Asta Dabuliene, Juozas Vidas Grazulevicius
Summary: By combining benzanthrone, phenothiazine, and phenoxazine moieties, new materials with TADF properties in the deep-red/near-infrared region were successfully developed, as well as compounds suitable for oxygen sensing applications. Different substituents on the benzanthrone moiety were found to result in varying oxygen sensitivity, with one compound exhibiting good reversibility under oxygen isotope ratio influence.
Article
Chemistry, Physical
Goutam Chakraborty, Rajani Kant Chittela, Padma Nilaya Jonnalgadda, Haridas Pal
Summary: Detection and quantification of bioanalytes using NIR probes have advantages of negligible light scattering, minimal interference from background matrices, and deep sample penetration. This study presents a supramolecular dye-polymer complex as a promising NIR emitting turn-on probe for protamine sensing. The complex shows fluorescence enhancement due to binding onto the polymer surface, and further enhancement in the presence of protamine. This selective turn-on response is attributed to a structural change in the polymer upon interaction with protamine.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Wei Miao, Xing Guo, Xi Yan, Yingjian Shang, Changjiang Yu, En Dai, Ting Jiang, Erhong Hao, Lijuan Jiao
Summary: In this study, a series of 3-pyrrolylBODIPY derivatives and 3,5-dipyrrolylBODIPY derivatives were synthesized by a simple regioselective nucleophilic aromatic substitution reaction. The introduction of a pyrrolic unit onto the 3-position of the BODIPY chromophore resulted in a significant red shift in both absorption and emission. Further functionalization at the 5-position fine-tuned their photophysical properties, and these derivatives exhibited strong absorption and intense near-infrared fluorescence emission. One of the derivatives, pyrrolylBODIPY 6 a, containing a mitochondrion-targeting cationic species, showed selective localization in mitochondria with low cytotoxicity and intense red fluorescence emission.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jochen Vanderspikken, Quan Liu, Zhen Liu, Tom Vandermeeren, Tom Cardeynaels, Sam Gielen, Bruno Van Mele, Niko Van den Brande, Benoit Champagne, Koen Vandewal, Wouter Maes
Summary: This research explores the enhancement of charge transfer absorption by altering the side chains of organic semiconductor donor polymers, thereby increasing the interfacial area between the polymer and fullerene. This improvement extends the detection range and performance of organic narrow-band photodetectors.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Wenxu Yin, Xiaoyu Zhang, Xuyong Yang, Andrey L. Rogach, Weitao Zheng
Summary: This article summarizes the recent progress in the development of near-infrared quantum dot LEDs, focusing on how their device structure and emitter properties facilitate improvement of device performance. The challenges and opportunities associated with these LEDs are also discussed.
Article
Materials Science, Multidisciplinary
Mitsuyuki Shikano, Masahiro Morimoto, Shigeki Naka
Summary: This study focused on the optical properties of a low-molecular-weight boron-dipyrromethene derivative (BODIPY-Ph) and its potential application in NIR region, with an acetone solution showing high photoluminescence quantum yield and the OLED exhibiting a relatively high external quantum efficiency in the NIR region.
ORGANIC ELECTRONICS
(2021)
Article
Neurosciences
Zhengchen Cai, Makoto Uji, Umit Aydin, Giovanni Pellegrino, Amanda Spilkin, Edouard Delaire, Chifaou Abdallah, Jean-Marc Lina, Christophe Grova
Summary: In this study, a personalized NIROT workflow using fNIRS for spatiotemporal imaging of cortical hemodynamic fluctuations was proposed and evaluated. The MEM framework showed better spatial accuracy compared to the MNE method, while both methods exhibited similar temporal accuracy in reconstructing concentration changes of HbO and HbR. The complete workflow was made available for further application in the brainstorm fNIRS processing plugin-NIRSTORM.
HUMAN BRAIN MAPPING
(2021)
Article
Materials Science, Multidisciplinary
Chao Shi, Hong Huang, Qiuxia Li, Jingwen Yao, Cuicui Wu, Yibo Cao, Fangxiang Sun, Dongge Ma, Hong Yan, Chuluo Yang, Aihua Yuan
Summary: The study describes a novel strategy towards a series of charged ligand-based neutral iridium(III) complexes with adjustable color emission from blue-green to near-infrared. These complexes show excellent chemical and thermal stability, making them suitable for OLED devices with high external quantum efficiency, low efficiency roll-off, and turn-on voltage. This research provides new opportunities for optoelectronic applications of novel phosphorescent iridium(III) complex materials with tunable properties.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Fang-Yu Yuan, Chen-Sheng Lin, Yi-Zhi Huang, Hao Zhang, An-Yi Zhou, Guo-Liang Chai, Wen-Dan Cheng
Summary: In this study, a new IR NLO quaternary selenide BaCdGeSe4 was synthesized and characterized for its non-centrosymmetric crystal structure. Under 2050 nm laser excitation, BaCdGeSe4 exhibits type-I phase-matchable behavior with second-harmonic generation intensities approximately 0.5 times that of AgGaS2.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Abdelaziz Jouaiti, Lavinia Ballerini, Hsiang-Ling Shen, Ronan Viel, Federico Polo, Nathalie Kyritsakas, Stefan Haacke, Yu-Ting Huang, Chin-Wei Lu, Christophe Gourlaouen, Hai-Ching Su, Matteo Mauro
Summary: This study presents two binuclear heteroleptic Cu-I complexes with rigid chelating diphosphines and pi-conjugated 2,5-di(pyridin-2-yl)thiazolo[5,4-d]thiazole ligands. The complexes exhibit a large bathochromic shift of emission, allowing luminescence in the near-infrared (NIR) region. Photophysical and computational investigations confirm the radiative process and structural analysis reveals a unique doubly locked structure. These complexes are successfully used in NIR light-emitting electrochemical cells (LECs) and show potential for white-emitting LECs.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Microbiology
Alex J. Mullins, James A. H. Murray, Matthew J. Bull, Matthew Jenner, Cerith Jones, Gordon Webster, Angharad E. Green, Daniel R. Neill, Thomas R. Connor, Julian Parkhill, Gregory L. Challis, Eshwar Mahenthiralingam
NATURE MICROBIOLOGY
(2019)
Article
Biotechnology & Applied Microbiology
Patrick Hardinge, James A. H. Murray
Review
Plant Sciences
Angharad R. Jones, Leah R. Band, James A. H. Murray
TRENDS IN PLANT SCIENCE
(2019)
Article
Multidisciplinary Sciences
Patrick Hardinge, James A. H. Murray
SCIENTIFIC REPORTS
(2020)
Article
Plant Sciences
Geraint Parry, Yoselin Benitez-Alfonso, Daniel J. Gibbs, Murray Grant, Andrea Harper, C. Jill Harrison, Eirini Kaiserli, Sabina Leonelli, Sean May, Sarah McKim, Steven Spoel, Colin Turnbull, Renier A. L. van der Hoorn, James Murray
JOURNAL OF EXPERIMENTAL BOTANY
(2020)
Article
Multidisciplinary Sciences
Patrick Hardinge, Divesh K. Baxani, Thomas McCloy, James A. H. Murray, Oliver K. Castell
SCIENTIFIC REPORTS
(2020)
Article
Chemistry, Multidisciplinary
Oswaldo Rojas, Manuel G. Forero, Jose M. Menendez, Angharad Jones, Walter Dewitte, James A. H. Murray
APPLIED SCIENCES-BASEL
(2020)
Correction
Multidisciplinary Sciences
Patrick Hardinge, Divesh K. Baxani, Thomas McCloy, James A. H. Murray, Oliver K. Castell
SCIENTIFIC REPORTS
(2021)
Article
Microbiology
Alex J. Mullins, Jinlian Zhao, Gordon Webster, Hak Joong Kim, Yoana D. Petrova, Christina E. Ramming, Matthew Jenner, James A. H. Murray, Thomas R. Connor, Christian Hertweck, Gregory L. Challis, Eshwar Mahenthiralingam
Summary: The study revealed the widespread distribution of natural products with alkyne and polyyne moieties in bacteria, with their biosynthetic gene clusters showing evolutionary connections. Through genomic and phylogenetic analyses, the diversity and biosynthetic logic of polyyne were explored, providing insights into discovering new natural products and enhancing the understanding of polyyne synthesis.
Article
Biotechnology & Applied Microbiology
Amit P. Jathoul, Bruce R. Branchini, James C. Anderson, James A. H. Murray
Summary: It has been discovered that the wavelength range of beetle bioluminescence can be expanded using a single synthetic substrate, iLH2, and different luciferases can emit various colors from visible green to near-infrared, including in human cells. This finding is significant for understanding the color tuning mechanism of beetle luciferases.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Chia-Hao Chang, Danielle M. Fontaine, Sandra Gomez, Bruce R. Branchini, James C. Anderson
Summary: This study describes the design of pi-extended conjugation 'V'-shaped red shifted bioluminescent D-luciferin analogues based on a novel benzobisthiazole core. The 'V'-shaped luciferins showed narrower optical band gaps, more red-shifted absorption and emission spectra compared to D-luciferin. Their bioluminescence characteristics were recorded against four different luciferases, and the 'V'-shaped luciferins demonstrated more red-shifted emissions than D-luciferin by 60 to 80 nm. Additionally, the benzobisthiazole luciferins showed a wide range of bioluminescence spectra from the visible light region to the nIR window. Molecular modeling supported the design concept and suggested its potential application in the development of novel D-luciferin analogues.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Organic
Chia-Hao Chang, Sandra Gomez, Danielle M. Fontaine, Panagiotis Fikas, Bruce R. Branchini, James C. Anderson
Summary: A new synthetic luciferin, designed with rotationally restricted structure, demonstrated enhanced performance for bioluminescence reaction. This luciferin possessed two intramolecular H-bonds to limit degrees of freedom, an amine group to promote indirect light conversion, and an alkenyl group to increase π-conjugation. Spectroscopic and computational studies showed that the synthetic luciferin exhibited longer absorption and fluorescence emission wavelength compared to LH2 and iLH(2). Docking studies suggested that the emission wavelength of the luciferin might be influenced by the twisted structure caused by Asp531 within the enzyme. Further investigation with mutant luciferase FlucRed revealed a major emission peak at 606 nm, a distinct shoulder above 700 nm, and 21% of the spectrum located in the near-infrared range.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Aisha J. Syed, James C. Anderson
Summary: Bioluminescence is a natural phenomenon where living creatures produce light through a reaction between luciferin and luciferase. Various luciferin-luciferase pairs have different applications, such as gene assays and drug discovery. In recent years, bioluminescence has found increasing applications in biomedicine, including photodynamic therapy and neuron control.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Microbiology
Alex J. Mullins, Cerith Jones, Matthew J. Bull, Gordon Webster, Julian Parkhill, Thomas R. Connor, James A. H. Murray, Gregory L. Challis, Eshwar Mahenthiralingam
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2020)
Article
Chemistry, Physical
Anand M. Patel, Alice Henley, Michael A. Parkes, Mariana Assmann, Graham A. Worth, James C. Anderson, Helen H. Fielding
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2020)