Article
Chemistry, Multidisciplinary
Zongshang Li, Ke Xiao, Qingyun Wan, Rui Tang, Kam-Hung Low, Xiaodong Cui, Chi-Ming Che
Summary: The introduction of multiple kinetic aggregation states (Aggs) into the self-assembly pathway can increase the complexity and flexibility of the self-assemblies. This was achieved by using a series of chiral and achiral d(10) Au-I bis(N-heterocyclic carbene, NHC) complexes, where the achiral complex could undergo self-assembly with multiple kinetic Aggs. The chiral Au-I self-assemblies exhibited nonlinear optical response of second harmonic generation (SHG) and could function as optical waveguides with strong emission polarization, while these properties were absent in the achiral analogue.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Daniel Hugenbusch, Marc Lehr, Jan-Simon von Glasenapp, Anna J. McConnell, Rainer Herges
Summary: We report the photo-switching properties of two regioisomeric diazocine ligands. The self-assembly of these ligands with Co-II ions was studied, and reversible transformation between different ligand configurations and Co-II complexes was achieved through light-controlled switching.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Jue Yin, Mo Xie, Junke Wang, Meirong Cui, Dan Zhu, Shao Su, Chunhai Fan, Jie Chao, Qian Li, Lianhui Wang
Summary: In this work, the authors report a simple and versatile one-pot strategy to fabricate DNA architectures with the assistance of spherical gold nanoparticles modified with thiolated oligonucleotide strands. The desired architectures are formed via the stochastic co-assembly of different modules.
Article
Chemistry, Multidisciplinary
Peng Li, Guojing Xu, Nannan Wang, Bo Guan, Shuiqing Zhu, Penglei Chen, Minghua Liu
Summary: The study demonstrates the fabrication of 0D, 1D, and 2D supramolecular nanostructures of porphyrin via a reprecipitation protocol, with spherical, fibrous, and sheetlike architectures respectively. These nanostructures show promising optoelectronic performances as photocatalysts for water remediation, with nanofibers exhibiting the highest catalytic reactivity.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Wenying Shi, Zhaojun Xia, Yingtong Zong, Ruixing Wang, Jing Liu, Chao Lu
Summary: By utilizing confinement from layered double hydroxides (LDH), various simple monomers can successfully form living supramolecular co-assemblies (LSCA). LDH overcomes a significant energy barrier to obtain living seeds, which support the growth of the inactivated second monomer. The ordered LDH topology is sequentially mapped to the seed, second monomer, and binding sites, allowing for multidirectional binding sites and dendritic LSCA with a maximum branch length of 3.5 cm.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Stefan Repp, Michael Steiner, Montaha Anjass, Dieter Sorsche, Carsten Streb
Summary: Metal cations are utilized to control the selective crystallization of organic-inorganic supramolecular polymers. The assembly of a dodecanuclear vanadate [V12O32(NO3)](5-) and the organic macrocycle cyclen into hybrid host-guest aggregates results in supramolecular polymerization and crystallization, driven by the interplay of cyclene protonation, hydrogen-bonding and electrostatics in the presence of Ba2+ or La3+.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Keigo Tashiro, Takuho Saito, Hironari Arima, Natsuki Suda, Balaraman Vedhanarayanan, Shiki Yagai
Summary: Chemists have constructed sophisticated artificial nanostructured systems through self-assembly, including scissor-shaped photochromic dyads that hierarchically self-assemble into discrete nanostructures with photoresponsive properties. These nanostructures, such as azobenzene dyads, can be dissociated and reorganized through the photoisomerization of azobenzene units, enabling controllable and adjustable structures.
Article
Chemistry, Multidisciplinary
Longfei Yao, Kuo Fu, Xuejuan Wang, Menglu He, Wannian Zhang, Peng-Yu Liu, Yu-Peng He, Guofeng Liu
Summary: The study focuses on the dynamic supramolecular chirality inversion (SMCI), which deepens understanding of chiral transfer and amplification and aids in the development of chiral nanomaterials. The researchers successfully developed a hierarchical coassembly system based on mPAzPCC and various metal ions, achieving effective chirality transfer and temporal-controlled SMCI. The work provides insight into metal ion-mediated supramolecular asymmetric catalysis and bioinspired chiral sensing.
Article
Chemistry, Multidisciplinary
Zhao-Tao Shi, Qian Wang, Jinhao Yi, Chengxi Zhao, Shao-Yu Chen, He Tian, Da-Hui Qu
Summary: In this study, a molecular building block was designed to self-assemble into nanofibers via π-π stacking interactions and transmit intrinsic chirality, providing opposite CPL signals. The nanofibers transformed into discrete nanospheres during the photoisomerization process, accompanied by a gradually decreased CPL signal.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Ikuya Matsumoto, Ryo Sekiya, Takeharu Haino
Summary: By decorating nanographenes with alkyl chains and controlling concentration, solvent polarity, temperature, and sonication, it is possible to achieve self-assembly and formation of stacked structures. Optical measurements and AFM images confirm the presence of stacked structures, while molecular mechanics calculations model the interactions within the aggregates. The nanographenes exhibit concentration-dependent morphologies, forming stacked structures at low concentrations and polymer-like network structures at higher concentrations on mica.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Yuting Bi, Caikun Cheng, Zongze Zhang, Rongjuan Liu, Jingjing Wei, Zhijie Yang
Summary: In this work, the authors demonstrate the coupling of molecular self-assembly kinetics with the colloidal self-assembly kinetics of inorganic nanoparticles, leading to the formation of hierarchically assembled tubular nanocomposites with distinct structures. By serving as artificial histones, the colloidal nanoparticles promote the formation of single layered nanotubes and resistant tubular nanocomposites. Alternatively, aggregated nanoparticles are encapsulated into double-layer supramolecular nanotubes, resulting in nanoparticle superlattices with open channels. Increasing the amounts of nanoparticles enables the assembly into pseudohexagonal superlattices and triple-layered tubular nanocomposites. The sense of helicity transfers from the supramolecular nanotubes to the nanoparticle superlattices. These findings provide a strategy for designing and controlling hierarchical assembly between supramolecular chemistry and inorganic solids.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Review
Polymer Science
Xiujun Yu, Chenxing Guo, Shuai Lu, Zhi Chen, Heng Wang, Xiaopeng Li
Summary: This review summarizes the progress on 3D metallosupramolecular architectures based on terpyridine, and discusses the methods for the design and construction of discrete structures with molecular-level precision through coordination-driven self-assembly.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Jian-Cai Liu, Jie-Fei Wang, Qing Han, Ping Shangguan, Lu-Lu Liu, Li-Juan Chen, Jun-Wei Zhao, Carsten Streb, Yu-Fei Song
Summary: The study demonstrates how the aggregation of giant molecular metal oxide superstructures can be driven using organotin and lanthanide cations, with detailed structural analysis. Initial biomedical tests show inhibitory effects of the compound on cancer cell proliferation, indicating potential applications in cancer treatment.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Multidisciplinary
Jingjing Han, Haoning Gong, Xiaokang Ren, Xuehai Yan
Summary: This article introduces the research field of peptide-based supramolecular nanozymes, emphasizing the importance and versatility of peptides as building blocks, as well as the potential for regulating catalytic performance.
Article
Polymer Science
Hao Yu, Falon C. Kalutantirige, Lehan Yao, Charles M. Schroeder, Qian Chen, Jeffrey S. Moore
Summary: Recent advances in chemical synthesis have provided new methods for synthesizing sequence-controlled synthetic polymers, but designing monomer sequences for desired properties is still challenging. In this study, researchers synthesized periodic polymers with repetitive segments using a sequence-controlled ring-opening metathesis polymerization (ROMP) method inspired by proteins. They found that the repetitive segment architecture greatly impacts the self-assembly behavior of these materials.
Article
Chemistry, Multidisciplinary
Nithiyanandan Krishnan, Devanathan Perumal, Siriki Atchimnaidu, Kaloor S. Harikrishnan, Murali Golla, Nilima Manoj Kumar, Jemshiya Kalathil, Jithu Krishna, Dileep K. Vijayan, Reji Varghese
CHEMISTRY-A EUROPEAN JOURNAL
(2020)
Review
Chemistry, Multidisciplinary
Vakayil K. Praveen, Balaraman Vedhanarayanan, Arindam Mal, Rakesh K. Mishra, Ayyappanpillai Ajayaghosh
ACCOUNTS OF CHEMICAL RESEARCH
(2020)
Article
Chemistry, Multidisciplinary
Arindam Mal, Samiyappan Vijayakumar, Rakesh K. Mishra, Jubi Jacob, Renjith S. Pillai, B. S. Dileep Kumar, Ayyappanpillai Ajayaghosh
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Review
Chemistry, Multidisciplinary
Shine K. Albert, Murali Golla, Nthiyanandan Krishnan, Devanathan Perumal, Reji Varghese
ACCOUNTS OF CHEMICAL RESEARCH
(2020)
Article
Chemistry, Multidisciplinary
Anjali Nirmala, Indulekha Mukkatt, Sreejith Shankar, Ayyappanpillai Ajayaghosh
Summary: The study demonstrates a method to use a mixture of iron (II) chloride and bipyridine as a reversible thermochromic switch and logic operator, showing generality. It also proves the concept of an optically readable multi-state volatile memory with temperature as a precision input.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Nanoscience & Nanotechnology
Indulekha Mukkatt, Anjali Nirmala, Nayan Dev Madhavan, Sreejith Shankar, Biswapriya Deb, Ayyappanpillai Ajayaghosh
Summary: The study designed three tetraterpyridine ligands with variations in their core architecture to create spray-coated electrochromic assemblies of iron(II)-based metallosupramolecular polymer network films. These assemblies exhibited high coloration efficiencies and optical contrast, suitable for electrochromic devices. The ligand-structure induced differential metal coordination led to porosity and spectroelectrochemical diversification, enabling the creation of electrochromic patterns and images through a simple spray-coating technique.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Gourab Das, Sandeep Cherumukkil, Akhil Padmakumar, Vijay B. Banakar, Vakayil K. Praveen, Ayyappanpillai Ajayaghosh
Summary: In this study, the creation and control of distinct supramolecular energy landscapes for reversible control of excited-state emission processes were demonstrated through cascade energy transfer in chromophore assemblies. Enhanced near-infrared emission was achieved by manipulating morphology and excitation energy transfer with variable solvent composition and ultrasound stimulation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Sandeep Cherumukkil, Gourab Das, Ravi P. N. Tripathi, G. V. Pavan Kumar, Sunil Varughese, Ayyappanpillai Ajayaghosh
Summary: Bodipy-PE-2 self-assembly forms a layered photonic structure upon thermal annealing, exhibiting angle-dependent iridescence of green and pink with a luminescence shift from yellow to red. The properties are attributed to the micro- and nano-periodicity associated with the layered structure and the phase transformation due to annealing. The material shows active and passive waveguiding properties when excited with 532 and 633 nm laser sources.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
C. K. Vipin, Atul Shukla, Kavya Rajeev, Monirul Hasan, Shih-Chun Lo, Ebinazar B. Namdas, Ayyappanpillai Ajayaghosh, K. N. Narayanan Unni
Summary: Pure white light emission was achieved by combining the exciplex emission with field-induced electromer emission. Electromer emission has significantly long-lived components, indicating possible utilization of triplet excitons in radiative recombination.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
Anjali K. Sajeev, Nishkarsh Agarwal, Anjaly Soman, Shilpi Gupta, Monica Katiyar, A. Ajayaghosh, K. N. Narayanan Unni
Summary: The study demonstrates the use of an external light extraction layer made of polydimethylsiloxane and zinc oxide nanoparticles to enhance the efficiency of OLEDs. The layer significantly improves light outcoupling, with white OLEDs showing the highest enhancement of 80%. Green OLEDs also exhibit substantial improvement, followed by red and blue OLEDs.
ORGANIC ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Reethu Haridas, Jayadev Velore, Sourava Chandra Pradhan, Asarikal Vindhyasarumi, Karuvath Yoosaf, Suraj Soman, K. N. Narayanan Unni, Ayyappanpillai Ajayaghosh
Summary: Two new molecularly engineered D-pi-A sensitizers, YK 8 and YK 9, based on carbazole have been developed for indoor photovoltaic applications. The efficient power output achieved under various illumination conditions demonstrates the potential of these sensitizers for powering low-power sensors and actuators on the Internet of Things network. The study also explores the role of pi-spacer in recombination and device performance through extensive interfacial studies.
MATERIALS ADVANCES
(2021)
Article
Materials Science, Multidisciplinary
Sarah K. M. McGregor, Chinju Govind, Michael K. R. Wood, Atul Shukla, Hyunsoo Lim, Romain J. Lepage, Elizabeth H. Krenske, Narayanan K. N. Unni, Ayyappanpillai Ajayaghosh, Venugopal Karunakaran, Ebinazar B. Namdas, Shih-Chun Lo
Summary: A new solution-processable N-styrylcarbazole-linked tetraphenylethylene derivative with green-orange emission was synthesized and characterized, showing significant photoluminescence enhancement in neat-film. The excited-state dynamics and enhanced PLQYs in the solid state were attributed to the restriction of structural relaxations, not aggregation effects commonly associated with TPE materials.
ADVANCED PHOTONICS RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Sandip Chakraborty, Manu M. Joseph, Sunil Varughese, Samrat Ghosh, Kaustabh K. Maiti, Animesh Samanta, Ayyappanpillai Ajayaghosh
Article
Chemistry, Multidisciplinary
I Mukkatt, P. M. Anjana, A. Nirmala, R. B. Rakhi, S. Shankar, A. Ajayaghosh
MATERIALS TODAY CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
Samrat Ghosh, Sreejith Shankar, Divya Susan Philips, Ayyappanpillai Ajayaghosh
MATERIALS TODAY CHEMISTRY
(2020)
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)
