Article
Chemistry, Analytical
Anna E. Dorfi, Jingkai Yan, John Wright, Daniel Esposito
Summary: Research demonstrates that compressed sensing (CS) postprocessing can be successfully applied to scanning electrochemical microscopy (SECM) measurements with nonlocal continuous line probes (CLPs), reconstructing images with minimal distortion. By evaluating image quality at varying scan rates, a new upper bound for CLP scan rates has been established.
ANALYTICAL CHEMISTRY
(2021)
Article
Biochemical Research Methods
Jacob Schreiber, Surag Nair, Akshay Balsubramani, Anshul Kundaje
Summary: This study proposes a modified version of the in silico saturation mutagenesis (ISM) method, named Yuzu, that leverages the principles of compressed sensing to reduce the computational time of ISM in models with limited receptive field operations such as convolutions. The results show that Yuzu can significantly speed up ISM in genomics by several orders of magnitude, with the acceleration effect increasing with the complexity of the convolution operations and the length of the analyzed sequence.
Article
Computer Science, Information Systems
Hadi Hadizadeh, Ivan V. Bajic
Summary: This paper presents a soft video multicasting system using adaptive block-based compressed sensing method, in which each block in each frame of the input video is adaptively sampled based on texture complexity and visual saliency. The system achieves better reconstruction quality at the decoder side using an iterative algorithm and adaptive processing, exploiting temporal similarity between adjacent frames. Extensive experimental results demonstrate the superiority of this system over existing soft video multicasting systems.
IEEE TRANSACTIONS ON MULTIMEDIA
(2021)
Article
Engineering, Environmental
Junjie Qiu, Weiqiang Tang, Bo Bao, Shuangliang Zhao
Summary: In this study, a microfluidic approach was used to investigate the reaction kinetics of H2O2 decomposition, characterizing the reaction through changes in bubble volume. Kinetic models were established and experimental observations were in good agreement with theoretical calculations. This method provides a rapid and accurate way to study liquid-to-gas decomposition reactions, beneficial for reaction optimization involving H2O2.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Yuhan Li, Tianyao Huang, Xingyu Xu, Yimin Liu, Lei Wang, Yonina C. Eldar
Summary: This study investigates the phase transitions of range-Doppler recovery in FAR using compressed sensing methods. The results show that block sparse recovery outperforms standard recovery when extended targets occupy multiple range cells, facilitating radar parameter design.
IEEE TRANSACTIONS ON SIGNAL PROCESSING
(2021)
Article
Engineering, Electrical & Electronic
Wuzhen Shi, Shaohui Liu, Feng Jiang, Debin Zhao
Summary: This paper proposes a novel video CS framework called VCSNet based on convolutional neural networks, aiming to explore both intraframe and interframe correlations. This method shows better objective and subjective reconstruction quality compared to existing methods in experiments.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
(2021)
Article
Chemistry, Physical
Yu Wang, Wanwan Wang, Jing Xie, Chia-Hsin Wang, Yaw-Wen Yang, Yi-Chun Lu
Summary: Understanding the mechanisms of CO2 reduction reaction (CRR) and CO2 evolution reaction (CER) is crucial for the development of stable and efficient Li-CO2 batteries. The study shows that using an ionic liquid can enhance the kinetics of CRR, but the presence of H2O can lead to severe electrolyte degradation. Additionally, the assistance of O2 in the ionic liquid-based electrolyte can improve the rechargeability and kinetics of CRR in Li-CO2 batteries.
Article
Computer Science, Information Systems
Wenxue Cui, Shaohui Liu, Feng Jiang, Debin Zhao
Summary: In this paper, a novel image CS framework using non-local neural network (NL-CSNet) is proposed to improve the reconstruction quality. Two non-local subnetworks are constructed for utilizing non-local self-similarity priors in the measurement domain and the multi-scale feature domain respectively. A novel loss function is developed to enhance the coupling between the non-local representations, enabling an end-to-end training of NL-CSNet. Extensive experiments show that NL-CSNet outperforms existing state-of-the-art CS methods while maintaining fast computational speed.
IEEE TRANSACTIONS ON MULTIMEDIA
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Jin Joo Kim, Jin You Kim, Lee Hwangbo, Hie Bum Suh, Yohan Son, Marcel Dominik Nickel, Robert Grimm
Summary: The study found that early enhancement parameters derived from ultrafast dynamic contrast-enhanced MRI, such as TTE and MS, are associated with histopathologic prognostic factors in women with breast cancer.
AMERICAN JOURNAL OF ROENTGENOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Sanhita Guha, Andreas Bathelt, Miguel Heredia Conde, Joachim Ender
Summary: Existing compressed sensing algorithms fail in radar target detection when there is a large gap in the frequency band. A new algorithm based on a subdivision-fusion scheme is proposed to solve this problem. The algorithm utilizes a structured sensing matrix based on radar signals to achieve good range resolution despite high coherence. The performance of the algorithm is discussed and demonstrated through simulative examples and real measurement data, showing superior performance in the presence of band gaps.
IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING
(2023)
Article
Quantum Science & Technology
Akshay Gaikwad, Arvind, Kavita Dorai
Summary: In this study, the compressed sensing (CS) algorithm and a heavily reduced data set were used to perform true quantum process tomography on an NMR quantum processor. The CS algorithm demonstrated significantly better performance in the Pauli-error basis for estimating process matrices corresponding to various quantum gates.
QUANTUM INFORMATION PROCESSING
(2022)
Article
Polymer Science
Ioanna N. Besiri, Thomas B. Goudoulas, Ehsan Fattahi, Thomas Becker
Summary: A customized parallel-plate rheometric setup was used for an in situ investigation on how the initial distribution of CaCl2 to alginate through micro-holes affects the gelation process. Increasing the number of suppliers (2-12) resulted in stiffer gels at the same probing time. The oscillation and different local distribution of cations into the biopolymer solution affected the development of the gel front, which was rheologically investigated through the temporal evaluation of complex modulus, G*. The alternative configurations of the same number of micro-holes also contributed significantly to this aspect. Additionally, a two-kernel equation was introduced to predict the alginate-Ca2+ gelation kinetics.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Computer Science, Information Systems
Jun Wang
Summary: In this paper, a wonderful triangle is introduced to explore the concrete metric relationship between llxll1/llxll and llxll0. Based on the analysis of the iterative soft-thresholding operator, the angle of the triangle corresponding to the side llxll. - llxll1/llxll0 is studied, demonstrating the meaningfulness of signal sparsity within a certain exact interval.
INFORMATION SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Zheng Kang, Zhihua Huang, Chenhua Lu
Summary: This research proposes a time-domain U-Net speech enhancement model that combines lightweight Shuffle Attention mechanism and compressed sensing loss. The effectiveness of different loss functions on model performance is validated through experiments, and the efficiency of CS loss is confirmed. Compared to reference models, the proposed model achieves higher speech quality and intelligibility scores with fewer parameters, and it also demonstrates good denoising performance for noise outside the dataset, indicating strong generalization ability.
APPLIED SCIENCES-BASEL
(2022)
Article
Geochemistry & Geophysics
Bangjie Zhang, Gang Xu, Hanwen Yu, Hui Wang, Hao Pei, Wei Hong
Summary: This article proposes a novel robust gridless compressed sensing (RGLCS) algorithm for high-resolution 3-D imaging. The algorithm uses atomic norm minimization to model the joint-sparsity pattern on elevation distribution between adjacent pixels, and models outliers and disturbances as sparsely distributed spike noise in the image domain. Experimental results validate the effectiveness of the proposed algorithm.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2023)
Article
Chemistry, Physical
Meredith Rose Barr, Luke Forster, Carmine D'Agostino, Roberto Volpe
Summary: Surface chemistry and morphology of walnut shells-derived biochars were studied to understand adsorption strengths of solvents to pore surfaces using NMR measurements and X-ray photoelectron spectroscopy. Alkaline pretreatment was found to enhance hydrophilicity and interactions with hydroxyl groups. Results indicated potential modulation of adsorption properties by controlling factors like surface hydrophilicity, particle size, and pore accessibility.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Graziano Di Carmine, Luke Forster, Simeng Wang, Christopher Parlett, Armando Carlone, Carmine D'Agostino
Summary: The immobilisation of organocatalysts onto solid supports is a promising solution to enhance their productivity by enabling their reuse. In this study, NMR relaxation measurements combined with reaction screening were used to investigate the influence of solvent interactions with the immobilised catalyst matrix on the reactivity of an asymmetric organocatalysed aldol reaction. Important insights for the further development of such complex and promising catalytic systems are provided.
REACTION CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Physical
Sabrina Ballauri, Enrico Sartoretti, Min Hu, Carmine D'Agostino, Zijuan Ge, Liang Wu, Chiara Novara, Fabrizio Giorgis, Marco Piumetti, Debora Fino, Nunzio Russo, Samir Bensaid
Summary: This study presents an improved design for Pd/Ce-Pr catalysts, showing that the PdO-PrOx interaction in materials with high praseodymium content results in lower activity, while a limited amount of Pr in ceria can lead to a more active catalyst. The simultaneous presence of Pd in its reduced and oxidized forms is a key factor for high activity, and the higher hydrophobicity of the sample significantly reduces the H2O inhibition effect typical of Pd-based materials.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Nanoscience & Nanotechnology
Graziano Di Carmine, Costanza Leonardi, Luke Forster, Min Hu, Daniel Lee, Christopher M. A. Parlett, Olga Bortolini, Mark A. Isaacs, Alessandro Massi, Carmine D'Agostino
Summary: The alcoholysis of furfuryl alcohol in SBA-15-pr-SO3H catalysts with different pore sizes was studied. Results showed that changes in pore size have a significant effect on catalyst activity and durability, with larger-pore-size catalysts deactivating more rapidly. The presence of SO3H groups on the external surface and reduced pore clogging were identified as factors contributing to the increased reusability of smaller-pore-size catalysts.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Heng Liu, Xue Jia, Ang Cao, Li Wei, Carmine D'agostino, Hao Li
Summary: By using surface Pourbaix analysis, this study reveals that the surface state of transition metal X-ide catalysts can be different from their pristine forms under electrochemical conditions, due to water dissociation or generation. This suggests the need to consider the surface state under reaction conditions in order to accurately identify and analyze active sites of these catalysts.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Run Zou, Sarayute Chansai, Shaojun Xu, Bing An, Shima Zainal, Yangtao Zhou, Ruojia Xin, Pan Gao, Guangjin Hou, Carmine D'Agostino, Stuart M. Holmes, Christopher Hardacre, Yilai Jiao, Xiaolei Fan
Summary: Stabilisation of metal species using hydroxyl-rich dealuminated zeolites is a promising method for catalysis. The presence of abundant hydroxyl groups on dealuminated zeolites stabilises highly active metal-oxygen species and improves the activity and anti-coking ability of the catalyst.
Article
Chemistry, Multidisciplinary
Chengxu Zhu, Carmine D'Agostino, Sam P. de Visser
Summary: The study demonstrates how CO2 and H-2 can be reacted to produce methanol and highlights the crucial steps in the reaction mechanism. Calculations predict that the reaction proceeds through three cycles, requiring high pressure to overcome H-2 cleavage, and the ligand scaffold plays an important role in the reaction mechanism.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Meshal Aljohani, Helen Daly, Lan Lan, Aristarchos Mavridis, Matthew Lindley, Sarah J. Haigh, Carmine D'Agostino, Xiaolei Fan, Christopher Hardacre
Summary: H-2 production from photoreforming of organosolv lignin is lower compared to that from cellulose, but can be enhanced by cycling the catalyst.
Article
Chemistry, Multidisciplinary
Miriam Marchi, Edoardo Raciti, Sai Manoj Gali, Federica Piccirilli, Hendrik Vondracek, Arianna Actis, Enrico Salvadori, Cristian Rosso, Alejandro Criado, Carmine D'Agostino, Luke Forster, Daniel Lee, Alexandre C. Foucher, Rajeev Kumar Rai, David Beljonne, Eric A. Stach, Mario Chiesa, Roberto Lazzaroni, Giacomo Filippini, Maurizio Prato, Michele Melchionna, Paolo Fornasiero
Summary: The manipulation of carbon nitride (CN) structures through microwave treatment enhances the activity of CN-based photocatalysts for Ni dual photocatalysis. This approach improves the efficiency of C-X (X = N, S, O) couplings in organic synthesis reactions. The formation of carbon vacancies and subsequent evolution into triazole and imine N species play a crucial role in the enhanced reactivity of the material.
Article
Chemistry, Multidisciplinary
Heng Liu, Di Zhang, Stuart M. Holmes, Carmine D'Agostino, Hao Li
Summary: The anion exchange membrane fuel cell (AEMFC) offers a promising way for the broad application of earth-abundant element based catalysts in alkaline media. Recent studies found that zirconium nitride (ZrN) exhibits superior activity in the alkaline oxygen reduction reaction (ORR), even surpassing that of Pt. This study proposes a new theoretical framework to understand the ORR mechanism of ZrN and applies it to other transition metal nitrites. The findings provide insights for the rational design of transition metal nitrides for alkaline ORR.
Article
Chemistry, Physical
Atika Muhammad, Chengxu Zhu, Xiao Yu, Graziano Di Carmine, Hannah Wood, Paola Carbone, Sam P. de Visser, Christopher Hardacre, Carmine D'Agostino
Summary: Heterogenisation of homogeneous catalysts onto solid supports is a potential strategy for recyclable and reuseable catalysis. However, immobilised catalysts usually exhibit lower activity compared to their homogeneous counterparts. In this study, the influence of support and solvent on the catalytic activity of heterogenised catalysts in the H-transfer reduction of propionaldehyde was investigated. The results showed that the choice of support does not significantly affect catalytic activity, but solvents with high affinity for the catalyst surface or solvation effects that hinder access to active sites result in lower activity. Molecular dynamics simulations provided insights into the solvation effects involved in the reactions, which play a crucial role in determining the catalytic behavior. The activity of the heterogenised catalysts was found to be comparable to the homogeneous catalysts, indicating that immobilisation of the homogeneous catalyst onto solid supports is a viable and effective strategy for this type of reaction.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Review
Chemistry, Multidisciplinary
Umar C. Abubakar, Yash Bansod, Luke Forster, Vincenzo Spallina, Carmine D'Agostino
Summary: Acrylic acid, an essential chemical used in various industries, is currently produced from petroleum-based feedstocks, which is unsustainable for achieving net zero carbon emissions. Waste glycerol generated from biodiesel production has been proposed as an alternative feedstock. However, commercial-scale adoption faces challenges in converting glycerol to acrylic acid. This review discusses different conversion routes and their recent developments, highlighting the potential of biochemical conversion for its environmental benefits and thermocatalytic conversion for higher yields.
REACTION CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Carmine D'Agostino, Valentina Preziosi, Giuseppina Caiazza, Maria Vittoria Maiorino, Einar Fridjonsson, Stefano Guido
Summary: Emulsions are widely used in various consumer products and studying their microscopic behavior is challenging. This study investigates the effect of surfactant concentration on the microstructure and diffusion within water-in-oil emulsion systems using low-field pulsed-field gradient (PFG) NMR and optical imaging. The results show that high surfactant concentration leads to smaller droplets and restricted diffusion near the droplet boundaries, while decreasing surfactant concentration results in larger droplets and less pronounced diffusion components.
Article
Chemistry, Physical
Riccardo Bacchiocchi, Alessia Ventimiglia, Andrea Canciani, Giorgia Peroni, Tommaso Tabanelli, Stefania Albonetti, Nikolaos Dimitratos, Ivan Rivalta, Shima Zainal, Luke Forster, Carmine D'Agostino, Fabrizio Cavani
Summary: This study investigates the continuous-flow, gas-phase, catalytic transfer hydrogenation of methyl levulinate and ethanol over zirconia catalysts. The effect of two different crystalline phases on catalyst performance is examined through catalyst characterization and computational and NMR studies, revealing the structure-activity relationship of the catalytic process.
JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Atika Muhammad, Ammaru Ismaila, Bashir Jelani Usman, Graziano Di Carmine, Carmine D'Agostino
Summary: By immobilizing aluminium isopropoxide catalyst on mesoporous supports, H-transfer reductions of aldehydes and ketones can be achieved effectively. The immobilized catalysts exhibit excellent catalytic activity and stability, with the advantage of recyclability and reusability.
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)
