Article
Chemistry, Multidisciplinary
Yoshifumi Hashikawa, Shumpei Sadai, Shu Okamoto, Yasujiro Murata
Summary: While fullerene is normally an achiral molecule, it can become chiral depending on its functionalization pattern. The traditional method of inducing chirality in C-60 results in a mixture of chiral and achiral forms, making it difficult to study fullerene chirality. However, a new carbene-mediated synthesis method has been developed to create chiral open [60]fullerenes that have intense absorption in the far-red to near-infrared range. These chiral [60]fullerenes show potential for use as novel chiral chromophores.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Inorganic & Nuclear
Jinchao Shen, Wei He
Summary: Fluorophores with absorption and emission in the near-infrared region are increasingly being used for bioimaging and phototherapy due to their high penetration depth and signal-to-noise ratio. Transition metal complexes with low spin d electronic configuration have beneficial chemical and photophysical capabilities. However, most transition metal complexes require short-wavelength and high-energy light for activation. Therefore, the fabrication of near-infrared absorbing transition metal complexes is particularly meaningful through the combination with fluorophores or other methods. This review provides a brief introduction to near-infrared absorbing fluorophores and presents an overview and highlights of the design strategies for transition metal complexes absorbing near-infrared light. The challenges and opportunities in this field are also discussed.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Energy & Fuels
Wei Gao, Francis R. Lin, Alex K-Y Jen
Summary: This article focuses on the development of near-infrared nonfullerene acceptors (NFAs) in organic solar cells (OSCs), discussing their molecular design strategies, structure-property-performance relationships, and the potential in fabricating ternary and tandem OSCs. Outlooks for future design of NIR NFAs are also provided, considering material stability and production cost based on current knowledge, in hope of aiding the further development of the field.
Article
Multidisciplinary Sciences
Zhuoran Ma, Feifei Wang, Weizhi Wang, Yeteng Zhong, Hongjie Dai
Summary: This study utilized artificial neural networks to transform fluorescence images in the shorter-wavelength NIR window to images resembling NIR-IIb window, achieving high signal-to-background ratio in vivo lymph node imaging with human-approved molecular probes. Translation of PD-L1 or EGFR imaging greatly enhanced tumor-to-normal tissue ratio and improved tumor margin localization, showcasing the potential of deep learning in enhancing noninvasive NIR imaging and microscopy. Deep learning equipped NIR imaging could facilitate basic biomedical research and clinical diagnostics and imaging-guided surgery.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Chemistry, Multidisciplinary
Shunsuke Yanagi, Akihisa Matsumoto, Naoyuki Toriumi, Yusuke Tanaka, Kazunori Miyamoto, Atsuya Muranaka, Masanobu Uchiyama
Summary: In this study, two bench-stable BzTAPs with 18 pi- and 20 pi-electron structures were designed and synthesized. It was found that the NIR-inert BzTAP can be converted to the NIR-active form in the presence of mild reducing agents. This finding is significant for the development of activatable NIR probes in reductive environments.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
Md Tanvir Hasan, Bong Han Lee, Ching-Wei Lin, Ainsley McDonald-Boyer, Roberto Gonzalez-Rodriguez, Satvik Vasireddy, Uyanga Tsedev, Jeffery Coffer, Angela M. Belcher, Anton Naumov
Summary: RGQDs, synthesized for the first time, are nanometer-sized graphene quantum dots derived from reduced graphene oxide, with NIR emission and high biocompatibility, suitable for bioimaging and therapeutic delivery. Through a high-yield synthetic process, RGQDs exhibit efficient internalization in cells and fluorescence tracking in live mice, presenting a new potential for NIR imaging in live animal models.
Article
Chemistry, Applied
Muzhou Teng, Yunlong Chen, Yili Xie, Zhijia Li, Qing Wan, Zhiming Wang, Jian Yang
Summary: The bright organic luminescent dots prepared in this study have desirable biocompatibility, great water dispersibility, high photoluminescent quantum efficiency, large Stokes shift, anti-background interference and great photostability. These dots can be used for long-term cell tracking studies on hepatocarcinoma cells.
Article
Biochemistry & Molecular Biology
Hiroki Masuoka, Yasuhiro Kubota, Toshiyasu Inuzuka, Kazumasa Funabiki
Summary: A new anionic heptamethine cyanine (HMC) dye with two trifluoromethyl groups has been synthesized, which selectively absorbs near-infrared light. Compared with previously studied anionic HMC dyes with substituents such as methyl, phenyl, and pentafluorophenyl groups, the trifluoromethylated dye exhibits a red-shifted maximum absorption wavelength (e.g. 948 nm in CH2Cl2) and enhanced photostability. Furthermore, HMC dyes with broad absorption in the near-infrared region are synthesized by combining a trifluoromethylated anionic HMC dye with a cationic HMC dye as a counterion.
Article
Biochemistry & Molecular Biology
Wenqing Zhu, Zongcheng Miao, Yaqin Chu, Liaoliao Li, Lei Wang, Dong Wang
Summary: This article examines the applications of near-infrared dyes in photoacoustic imaging and photothermal therapy. The results demonstrate that the chemical structure of the dyes can influence their optical properties and photothermal effects. These dyes have potential for a wide range of biomedical applications.
Article
Chemistry, Multidisciplinary
Sai Ho Pun, Ka Man Cheung, Daiyue Yang, Han Chen, Yujing Wang, Stephen Kershaw, Qian Miao
Summary: In this study, the synthesis, structural analysis, and optical properties of a novel quadruple helicene were reported. The quadruple helicene consists of two [6]helicene and two [7]helicene moieties fused in a contorted framework of 92 sp(2) carbon atoms. The chemically oxidized dication exhibits electronic circular dichroism in the near-infrared and visible-light regions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Applied
Yue Liang, Dongxiang Zhang, Jie Wang, Meiheng Lv, Feng Yan, Zhangrun Xu, Jianjun Du, Xin-Dong Jiang
Summary: In this study, a novel ring-fused quinoid-bisboron pyrrole dye (QBBP) with double BF2 chelation was successfully synthesized. The molecular structure and photophysical properties of QBBP were investigated, revealing its potential application in photothermal-photodynamic therapy.
Article
Chemistry, Applied
Yang Chen, Juanmei Zeng, Wenchao Huang, Yuanmei Hu, Shunhua Li, Yunbao Jiang
Summary: In this study, a novel approach for fabricating NIR absorbing materials was developed based on stabilizing chromogenic radicals in lipid membranes. The use of biomimetic membranes as a platform enabled the formation of NIR optical vesicles with strong absorption and sensitive photoacoustic response. This method shows potential for bioanalytical applications by optimizing optical properties and functionalizing membrane surfaces under ambient conditions.
Review
Chemistry, Inorganic & Nuclear
Jun Wang, Changjiang Yu, Erhong Hao, Lijuan Jiao
Summary: Aza-BODIPY is an important class of heteroatom-containing BODIPY analogue that can be modified to extend its absorption and emission wavelengths, making it promising for the development of near infrared chromophores and fluorophores.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Jari Leemans, Kim C. Dumbgen, Matthias M. Minjauw, Qiang Zhao, Andre Vantomme, Ivan Infante, Christophe Detavernier, Zeger Hens
Summary: This study focuses on the surface termination of IR active III-V QDs absorbing at 1220 nm, revealing a unique synthesis method that yields a surface termination consisting of a mixture of oleylamine and chloride, which can provide the energy needed to drive acid/base mediated ligand exchange reactions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Jinxiu Xia, Zhensheng Li, Zhigang Xie, Min Zheng
Summary: The constructed BDP-(NO2)(3) nanoparticles exhibit promising performance in photothermal conversion, showing potential applications in photothermal therapy. This method provides a universal and efficient approach for the rational design of functional nanomaterials. Experimental results validate the efficacy of BDP-(NO2)(3) NPs in inhibiting cancer cell proliferation and tumor ablation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Mambattakkara Viji, Nidhi Tyagi, Neeraj Naithani, Danaboyina Ramaiah
NEW JOURNAL OF CHEMISTRY
(2017)
Article
Chemistry, Multidisciplinary
Shameel Thurakkal, Krishnankutty S. Sanju, Anjaly Soman, K. N. Narayanan Unni, Joshy Joseph, Danaboyina Ramaiah
NEW JOURNAL OF CHEMISTRY
(2018)
Article
Chemistry, Multidisciplinary
Betsy Marydasan, Rajshree R. Nair, P. S. Saneesh Babu, Danaboyina Ramaiah, S. Asha Nair
Article
Materials Science, Biomaterials
Nagappanpillai Adarsh, P. S. Saneesh Babu, Rekha R. Avirah, Mambattakkara Viji, S. Asha Nair, Danaboyina Ramaiah
JOURNAL OF MATERIALS CHEMISTRY B
(2019)
Article
Chemistry, Multidisciplinary
Albish K. Paul, Dhanya T. Jayaram, P. S. Saneesh Babu, Nagappanpillai Adarsh, Shameel Thurakkal, Asha S. Nair, Danaboyina Ramaiah
JOURNAL OF CHEMICAL SCIENCES
(2018)
