Article
Chemistry, Multidisciplinary
Chao Li, Heming Jiang, Pengxiang Liu, Yi Zhai, Xiuqin Yang, Longcheng Gao, Lei Jiang
Summary: Ion-exchange membranes are crucial in converting osmotic energy into electricity. Balancing permselectivity and ionic conductivity has always been a challenge. This study presents a membrane with minimal ion-exchange capacity that achieves ultrahigh power density in osmotic energy conversion.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Xiao Wang, Jiefei Wang, Jinghan Wang, Yong Zhong, Lulu Han, Jiliang Yan, Pengcheng Duan, Bingyang Shi, Feng Bai
Summary: The study developed a responsive carrier-free noncovalent self-assembly strategy to prepare a metallized anticancer nanodrug, which exhibited enhanced photothermal effect, leading to drug release in tumorous acidic microenvironments. The released drug induced intracellular reactive oxygen species (ROS) increase via thioredoxin reductase (TrxR) inhibition for synergistic chemo-photothermal therapy of tumors.
Article
Chemistry, Inorganic & Nuclear
Nirmal Kumar Shee, Hee-Joon Kim
Summary: Two Sn(iv)porphyrin-based supramolecular squares were synthesized, showing efficient photocatalytic degradation of Eriochrome Black T dye, with one of them having a higher pseudo-first-order degradation rate constant.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Neethi Raveendran, Tanwistha Ghosh, Vijitha Ignatious, Vibhu Darshan, Navin Jacob, Biswapriya Deb, Chakkooth Vijayakumar
Summary: Organic materials offer distinct advantages for thermoelectric applications, but small organic semiconductors have not been widely explored due to the challenge of obtaining high conducting films. This study demonstrates that slight modifications to molecular structure can significantly affect the thermoelectric characteristics of thiophene-based small molecules, with OT2 doped with FeCl3 exhibiting high electrical conductivity and power factor compared to OT1 under identical conditions.
MATERIALS TODAY ENERGY
(2023)
Article
Chemistry, Analytical
Xiaohui Niu, Simeng Yan, Rui Zhao, Sha Han, Kunjie Cao, Hongxia Li, Kunjie Wang
Summary: Chirality is important in natural and life sciences, and chiral materials are widely used for electrochemical chiral recognition. Carbon quantum dots have shown potential as a novel carbon nanomaterial due to their unique properties. Self-assembly of achiral porphyrins induced by chiral carbon quantum dots was demonstrated, and the resulting structure showed good electrochemical chiral recognition properties. This research provides a new approach for synthesizing chiral composites and expanding the applications of electrochemical chiral recognition.
Review
Chemistry, Physical
Piotr Cyganik, Andreas Terfort, Michael Zharnikov
Summary: Self-assembled monolayers (SAMs) are an important tool in nanofabrication and molecular engineering, with their properties depending on the tail groups and structure. The odd-even effects play a significant role in SAMs and can be observed in different materials, influencing the packing density and orientation of the SAM-forming molecules.
Article
Engineering, Biomedical
Gaston A. Otarola, Jerry C. Hu, Kyriacos A. Athanasiou
Summary: This study investigates the use of ion modulation to improve the biomechanical properties of engineered neotissues. By manipulating iron and calcium ions, the study achieves tissue maturation and significant improvement in mechanical properties. This has the potential to reduce the reliance on bioreactors and create hyaline-like tissues.
ACTA BIOMATERIALIA
(2022)
Article
Chemistry, Physical
Yu-Chen Wei, Liang-Yan Hsu
Summary: This article demonstrates that quantum electrodynamic (QED) effects can significantly enhance the rate of electron transfer (ET) without the use of cavities. By incorporating the effect of infinite one-photon states into Marcus theory and introducing the concept of electron transfer overlap, the study provides new insights into the involvement of cavity-free QED effects in ET reactions.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Biochemistry & Molecular Biology
Shanxia Cheng, Jianfen Li
Summary: Preparation of a supermacromolecular photosensitizer that can stay in the tumor site and exhibits high photoconversion efficiency is useful for improving the efficacy of tumor photodynamic therapy. In this paper, we prepared tetratroxaminobenzene porphyrin (TAPP) loaded biodegradable silk nano-spheres (NSs) and evaluated their morphology, optical properties, singlet oxygen-generating capacity, as well as in vitro photodynamic killing efficacy. The tumor retention ability and tumor killing effect of the nanometer micelles were verified by co-culturing with tumor cells. The results demonstrated the potential applications of the as-prepared nanomicelles in improved tumor PDT due to their excellent safety.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2023)
Article
Chemistry, Physical
China Okamoto, Atsuya Momotake, Yasuhiko Yamamoto
Summary: It was discovered that Pyropheophorbide a (Pyro-a), a chlorophyll metabolite, can form a 1:1 complex with nucleic acids, particularly G-quadruplex DNA. This complex showed a much higher quantum yield for singlet oxygen generation compared to Pyro-a in aqueous solution. These findings provide valuable insights for the design of Pyro-a-based photosensitizers to enhance photodynamic therapy efficacy.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Chemistry, Multidisciplinary
Chuanshen Du, Zhengjia Wang, Jiahao Chen, Andrew Martin, Dhruv Raturi, Martin Thuo
Summary: This study investigates the role of solvent polarity on the roughness-dependency of wetting behavior of self-assembled monolayers (SAMs) formed on different surface morphology of Ag-based substrate. The results show that the roughness-dependent behavior of SAMs is not only determined by substrate roughness, but also by the polarity of the probing liquid.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Biomedical
Cheng Li, Zijin Luo, Lixia Yang, Jun Chen, Kai Cheng, Yanan Xue, Genyan Liu, Xiaogang Luo, Fengshou Wu
Summary: The development of organic nanoagents with high photothermal conversion efficiency has become a focus in photothermal cancer therapy. The designed porphyrin polymer P-PPor displayed intense absorbance in the NIR region and significant fluorescence in the NIR-II region. The P-PPor nanoparticles showed enhanced absorption in the NIR region and a remarkable photothermal effect, making them a potential agent for photothermal cancer therapy.
MATERIALS TODAY BIO
(2022)
Review
Chemistry, Multidisciplinary
Yawen Yao, Xintong Meng, Cheng Li, Katrien V. Bernaerts, Kai Zhang
Summary: Carbohydrates are considered as an ideal candidate for chirality study due to their unique chemical structures, abundance, and sustainability. Efforts have been made to design and synthesize diverse carbohydrate derivatives and self-assemble them into various supermolecular morphologies. However, there is still insufficient understanding of how carbohydrate structures and self-assembly approaches affect the final morphologies and properties for future demands.
Review
Chemistry, Multidisciplinary
Yuheng Zhang, Kang Ren, Lu Wang, Lin Wang, Zhuangjun Fan
Summary: This article reviews the research progress in the design of porphyrin molecules in the field of heterogeneous photocatalysis in recent years. The application of interface control and spatial confinement effect in porphyrin-based hybrid photocatalysts is also introduced. The future development direction and main challenges in the research of porphyrin-based photocatalysts are discussed.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Ronghui Cao, Gaoyang Wang, Xitong Ren, Peng-Cheng Duan, Liang Wang, Yusen Li, Xing Chen, Rui Zhu, Yu Jia, Feng Bai
Summary: This study synthesized unique porphyrin nanoleaves with designed and ordered structure, showing a higher hydrogen evolution rate than commercial powder, and revealed the mechanism of how orderly stacked structures promote photocatalysis.
Correction
Chemistry, Physical
Andrew J. S. Valentine, Joseph J. Radler, Alexis Mills, Pyosang Kim, Felix N. Castellano, Lin X. Chen, Li Xiaosong
JOURNAL OF CHEMICAL PHYSICS
(2020)
Article
Biochemistry & Molecular Biology
Thomas J. Fauvell, Zhengxu Cai, Matthew S. Kirschner, Waleed Helweh, Pyosang Kim, Tianyue Zheng, Richard D. Schaller, Luping Yu, Lin X. Chen
Article
Chemistry, Multidisciplinary
Chihiro Maeda, Shuichi Nomoto, Koki Akiyama, Takayuki Tanaka, Tadashi Ema
Summary: Carbazole-based aza[7]helicenes and hetero[9]helicenes were successfully obtained via intramolecular Scholl reaction. Additionally, a compound with triple helicene structure was discovered through unexpected double aryl rearrangement. The helical dyes exhibited circularly polarized luminescence, and azahepta[8]circulene was further transformed into deeply saddle-distorted dibenzodiaza[8]circulenes as a solution-based synthesis example.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Physical
Pyosang Kim, Andrew J. S. Valentine, Subhangi Roy, Alexis W. Mills, Arnab Chakraborty, Felix N. Castellano, Xiaosong Li, Lin X. Chen
Summary: This study investigated the ultrafast intersystem crossing dynamics of four structurally related platinum(II) dimer complexes and revealed how ligands could fine-tune the potential energy surfaces to influence excited-state trajectories. The results suggest future opportunities in controlling the branching ratio of the dual intersystem crossing pathways through ligand structures.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Michael W. Mara, Brian T. Phelan, Zhu-Lin Xie, Tae Wu Kim, Darren J. Hsu, Xiaolin Liu, Andrew J. S. Valentine, Pyosang Kim, Xiaosong Li, Shin-ichi Adachi, Tetsuo Katayama, Karen L. Mulfort, Lin X. Chen
Summary: This study elucidates the effects of metal-metal interactions in a bimetallic complex using ultrafast optical and X-ray spectroscopies. The excited-state coupling between metal centers was found to affect the properties of charge-transfer states, providing important insights for tuning photosynthetic systems.
Article
Materials Science, Multidisciplinary
Waleed Helweh, Nathan C. Flanders, Shiwei Wang, Brian T. Phelan, Pyosang Kim, Michael J. Strauss, Rebecca L. Li, Matthew S. Kelley, Matthew S. Kirschner, Dillon O. Edwards, Austin P. Spencer, George C. Schatz, Richard D. Schaller, William R. Dichtel, Lin X. Chen
Summary: Ordered organic materials and assemblies have the potential to be tailored for optoelectronic applications. This study investigates the exciton dynamics in a 2D COF, its macrocycle analogue, and nanotubes comprised of stacked macrocycles. The results provide insights into the excitonic processes and guide the design of future COF materials.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Physical
Tae Wu Kim, Pyosang Kim, Alexis W. Mills, Arnab Chakraborty, Sarah Kromer, Andrew J. S. Valentine, Felix N. Castellano, Xiaosong Li, Lin X. Chen
Summary: Bimetallic transition metal complexes have versatile functions. In this study, the influence of ligand structure on excited-state trajectories was investigated.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Chihiro Maeda, Hina Inoue, Ayano Ichiki, Takumi Okihara, Tadashi Ema
Summary: Bifunctional aluminum porphyrins can catalyze the conversion of oxetane and CO2 into TMC and PTMC. The catalytic activity is influenced by the Al3+ ion, while the selectivity is controlled by the counteranions. Different TMC compounds can be prepared by using various oxetane derivatives.
Review
Chemistry, Medicinal
Kazuto Takaishi, Chihiro Maeda, Tadashi Ema
Summary: Circularly polarized luminescence (CPL) dyes, recognized as new generation materials, are actively being developed with the help of molecular recognition systems. CPL can be induced through the mixing of different characteristics of host and guest molecules, providing a more efficient alternative to covalent bonding methods in constructing ordered chiral structures.
Article
Chemistry, Multidisciplinary
Chihiro Maeda, Issa Yasutomo, Kazuto Takaishi, Tadashi Ema
Summary: In this article, recent progress in functional dyes showing circularly polarized luminescence (CPL) containing porphyrins or phthalocyanines is summarized. The CPL-active systems are classified into four categories: (i) porphyrins with chiral sources; (ii) axially chiral porphyrin dimers; (iii) self-assembled porphyrins; (iv) porphyrin-sensitized CPL dyes.
JOURNAL OF PORPHYRINS AND PHTHALOCYANINES
(2023)
Article
Chemistry, Multidisciplinary
Denis Leshchev, Andrew J. S. Valentine, Pyosang Kim, Alexis W. Mills, Subhangi Roy, Arnab Chakraborty, Elisa Biasin, Kristoffer Haldrup, Darren J. J. Hsu, Matthew S. Kirschner, Dolev Rimmerman, Matthieu Chollet, J. Michael Glownia, Tim B. van Driel, Felix N. Castellano, Xiaosong Li, Lin X. X. Chen
Summary: The trajectories of photoexcited molecules before thermalization play a crucial role in determining the outcome of photochemical reactions. By using femtosecond wide-angle X-ray solution scattering, the excited-state trajectories of a diplatinum complex with photoactivated metal-metal sigma-bond formation and Pt-Pt stretching motions were observed in real time. The observed motions coincide with the coherent vibrational wavepacket motions detected by femtosecond optical transient absorption. The identification of two key coordinates for intersystem crossing provides insights into the electronic transitions occurring on the time scales of measured vibrational motions, revealing ultrafast nonadiabatic or nonequilibrium processes involving multiple excited-state potential energy surfaces (PESs).
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Organic
Chihiro Maeda, Koki Akiyama, Tadashi Ema
Summary: Oxidation of dihydroxyhetero[7]-helicenes resulted in the formation of dihetero[8]-circulenesvia simultaneous C-C coupling and dehydrative furan formation. The synthesized pristine dihetero[8]-circulenes were characterized for the first time, with X-ray crystal structures and DFT-optimized structures revealing distorted saddle-like structures. The degree of distortion was found to be correlated with the photophysical properties.
Article
Chemistry, Multidisciplinary
Yusuke Matsuo, Chihiro Maeda, Yusuke Tsutsui, Takayuki Tanaka, Shu Seki
Summary: The oxidative fusion reaction of cyclic heteroaromatic pentads composed of pyrrole and thiophene can produce closed-heterohelicene monomers and dimers depending on the oxidation conditions. Under specific oxidation conditions, the interconversion between monomers and dimers can be achieved by UV irradiation, accompanied by the observation of circularly polarized luminescence.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Organic
Chihiro Maeda, Takumi Cho, Ren Kumemoto, Tadashi Ema
Summary: Chemical fixation of CO2 has gained much attention, especially the catalytic formation of C-C bonds with CO2 to produce carboxylic acids. Among various CO2 fixation methods, multiple carboxylation is a challenging subject. In this study, we investigated the Cu-catalyzed carboxylation of various boronic acid pinacol esters (C(sp(2))-, C(sp(3))-, and C(sp)-B compounds) with CO2, which efficiently yielded different carboxylic acids including aryl, alkenyl, alkyl, and alkynyl carboxylic acids. The carboxylation method was also successful in multiple CO2 fixation, leading to the synthesis of di- and tri-carboxylic acids under robust reaction conditions (a total of 29 examples).
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Physical
Pyosang Kim, Andrew J. S. Valentine, Subhangi Roy, Alexis W. Mills, Felix N. Castellano, Xiaosong Li, Lin X. Chen
Summary: This study investigates the ultrafast excited state processes of a platinum complex, revealing the impact of Pt-Pt bond contraction on its optical properties.
FARADAY DISCUSSIONS
(2022)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
