Article
Chemistry, Inorganic & Nuclear
Brittany L. Bonnett, Stefan Ilic, Katie Flint, Meng Cai, Xiaozhou Yang, Hannah D. Cornell, Ashleigh Taylor, Amanda J. Morris
Summary: The porphyrinic metal-organic framework PCN-222 shows anisotropic growth behavior, forming nanorods and microrods with controlled aspect ratios. By modulating the concentrations of ligand, modulator, and base, the aspect ratios of microrods can be effectively adjusted. Understanding the growth mechanisms of PCN-222, such as ligand deprotonation and Ostwald ripening, allows for the synthesis of high aspect ratio metal-organic frameworks through acid-base co-modulation methods.
INORGANIC CHEMISTRY
(2021)
Article
Engineering, Multidisciplinary
Caroline Fradin, Francois Orange, Sonia Amigoni, Frederic Guittard, Thierry Darmanin
Summary: In this study, a bioinspired approach was used to conduct soft-template electropolymerization of NaphDOT in dichloromethane with different water content and supporting electrolytes. The role of electrolytes in the formation of reverse micelles was investigated, and their effects on the resulting porous nanostructures were studied. The findings demonstrate that electrolytes not only play a fundamental role in the formation of reverse micelles and porous nanostructures, but also significantly impact the deposition of oligomers on the soft template.
JOURNAL OF BIONIC ENGINEERING
(2022)
Article
Chemistry, Physical
Caroline Fradin, Francois Orange, Sonia Amigoni, Caroline R. Szczepanski, Frederic Guittard, Thierry Darmanin
Summary: This study proposes a method of soft templating using self-assembly of conducting monomers in organic solvents to form porous nanotubular structures. Results show that NaphDOT is capable of forming vertically aligned nanotubes, and the size of micelles in the polymerization solution correlates with the inner diameter of the nanotubes formed.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Sk Mehebub Rahaman, Anirudh Bardhan, Trishna Mandal, Madhuparna Chakraborty, Kripasindhu Karmakar, Subhendu Dhibar, Shivanjali Sharma, Manab Chakravarty, Samia M. Ibrahim, Bidyut Saha
Summary: For the first time, this study examines the impact of surfactant hydrophobicity on the synthesis of lanthanide series nanoparticles in the cores of reverse micelles. Two types of nonionic surfactants, Tween 20 and Tween 80, are used to develop microemulsions for the synthesis of lanthanum sulfide nanoparticles. The growth of the nanostructures is analyzed using dynamic light scattering, small angle X-ray scattering, transmission electron microscopy, and field emission electron microscopy. It is found that both microemulsion media produce nanospheres at any stage of the reaction, and the medium based on Tween 20 shows faster nucleation and growth with larger sizes compared to the medium based on Tween 80.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Long Yang, Heloise Therien-Aubin
Summary: This article investigates the relationship between the physical and mechanical properties of nanocolloidal building blocks and the properties of resulting gels. It shows that the properties of the gels can be tuned by controlling the aspect ratio and rigidity of the nanocolloids.
SCIENTIFIC REPORTS
(2022)
Review
Endocrinology & Metabolism
Qingjun Zhou, Lingling Yang, Qun Wang, Ya Li, Chao Wei, Lixin Xie
Summary: With the increasing global prevalence of diabetes mellitus, diabetic ocular surface diseases, including diabetic keratopathy and dry eye, have become more common and can significantly impact patients' quality of life and vision. Diabetic keratopathy is characterized by delayed corneal epithelial wound healing, decreased corneal nerve density, and sensation of burning or dryness. Diabetic dry eye is marked by reduced tear secretion and ocular discomfort. The pathogenesis of these diseases involves various factors such as advanced glycation end-products, impaired neurotrophic innervations and stem cell function, dysregulated growth factor signaling, and inflammation. The abnormal mitochondrial metabolism of the lacrimal gland caused by sympathetic nervous system overactivation may also contribute to diabetic dry eye. Future research on neuroepithelial and neuroimmune interactions is essential to understand the mechanisms and develop targeted interventions for diabetic ocular surface complications.
FRONTIERS IN ENDOCRINOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Bernard G. Stevenson, Ethan H. Spielvogel, Emily A. Loiaconi, Victor Mulwa Wambua, Roman Nakhamiyayev, John R. Swierk
Summary: While photoredox catalysis has been influential in modern synthetic chemistry, a detailed mechanistic study of alpha-aminoarylation mechanism reveals its complexity and low external quantum yield despite high product yields. The use of transient absorption spectroscopy allowed for identification of productive and unproductive reaction pathways and assignment of rate constants, providing a comprehensive understanding of the reaction. Kinetic modeling showed that the reaction is limited by scattering losses and parasitic absorption rather than individual kinetics steps.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Yao Sun, Binbin Xu, Jinjie Li, Yuqing Wang, Xinxin Li, Shaoliang Lin
Summary: The bottom-up fabrication of hierarchical assembled structures using liquid crystalline block copolymers is challenging but important. In this study, hierarchical platelets with a LC azobenzene core were prepared by the self-assembly of a diblock copolymer. The dimensions and morphologies of the platelets were tunable by manipulating the nucleation and aggregation. The slow cooling rate of the annealing process transformed the platelets from stacked leaf-shaped structures to 3D rectangular structures. UV irradiation induced a morphological revolution of the platelets. These tunable platelets have potential applications in functional materials.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Biochemistry & Molecular Biology
Krystian Galecki, Agnieszka Kowalska-Baron, Katarzyna E. Nowak, Anna Gajda, Beata Kolesinska
Summary: This study demonstrates the utility of time-resolved fluorescence spectroscopy in detecting subtle changes in the microenvironment of tryptophan chromophore in AOT reverse micelles. The results show evident changes in spectral characteristics and fluorescence decay kinetics when tryptophan and its peptides are inserted into micelles.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Sachin Rathod, Shristi Arya, Rahul Shukla, Debes Ray, Vinod K. Aswal, Pratap Bahadur, Sanjay Tiwari
Summary: In this study, the microstructural characteristics of Span 80 vesicles were successfully modulated by using Tween 80 as an edge activator, through adjusting the EA-VB ratio and total surfactant concentration. The formation of large vesicles was observed as the proportion of EA decreased and the total surfactant concentration increased. Shifting towards higher surfactant concentration led to profound microstructural changes in the vesicles.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Multidisciplinary
Soumyadip Bhunia, Manish Mukherjee, Pradipta Purkayastha
Summary: The study demonstrates the potential of stable Cu NCs synthesized within the aqueous core of reverse micelles (RMs) in photosensitization and controlled modulation, with promising applications in PET-driven phenomena such as solar cells or batteries.
Article
Engineering, Biomedical
Yongchao Yao, Xin Dai, Yifeng Tan, Ying Chen, Chunyan Liao, Tian Yang, Yun Chen, Yunlong Yu, Shiyong Zhang
Summary: A new nanodrug system, AICRM loaded with 5-FU, is reported in this study. By activating the surface azobenzenes with light irradiation, rapid drug release is achieved, leading to enhanced anticancer activity and deep tissue penetration compared to traditional drug delivery systems.
ADVANCED HEALTHCARE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Mike Rozenberg, Melina Zysler, David Zitoun
Summary: The synthesis of hexagonal palladium nanosheets (HPNS) was investigated, with a focus on the role of the CO precursor and the effects of temperature and stirring speed. The study found that the CO precursor played a major role in the formation of HPNS, and slow-release and atmosphere CO precursors resulted in the highest shape yield of HPNS. Additionally, an increase in the addition temperature of the CO precursor and a higher stirring rate improved the shape yield of the HPNS.
Article
Engineering, Electrical & Electronic
Aseem Vashisht, Gulshan Dhillon, Ranvir Singh Panwar, Anupreet Kaur Bhatia, Shalini Tripathi, Navdeep Sharma, Anju Saxena, Naveen Kumar
Summary: Pristine and Cd2+ modified SnO2 nanocrystals were synthesized and characterized. The increase in Cd2+ concentration resulted in larger grain size and different optical and electrical properties in the compositions.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Medicinal
Victor W. Mak, Akash M. Patel, Rose Yen, Jennifer Hanisak, Yeon-Hee Lim, Jianming Bao, Rong Zheng, W. Michael Seganish, Yang Yu, David R. Healy, Aimie Ogawa, Zhao Ren, Aileen Soriano, Grigori P. Ermakov, Maribel Beaumont, Essam Metwally, Alan C. Cheng, Andreas Verras, Thierry Fischmann, Matthias Zebisch, H. Leonardo Silvestre, Paul A. McEwan, John Barker, Paul Rearden, Thomas J. Greshock
Summary: Activation of PKG1 alpha is a promising approach for treating cardiovascular diseases, as it induces various beneficial effects such as smooth muscle relaxation and prevention of platelet aggregation. In this study, small molecule activators were optimized and shown to have anti-proliferative effects in human pulmonary arterial smooth muscle cells. Mechanistic studies revealed that the activators work through a similar mechanism as cGMP and bind to an allosteric pocket in close proximity to the cyclic nucleotide-binding domain.
JOURNAL OF MEDICINAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Nusrat Rashid, Mohsin Ahmad Bhat, Anirban Das, Pravin P. Ingole
JOURNAL OF CO2 UTILIZATION
(2020)
Article
Materials Science, Multidisciplinary
Anirban Das, Kalithasan Natarajan, Shalini Tiwari, Ashok Kumar Ganguli
MATERIALS RESEARCH EXPRESS
(2020)
Article
Chemistry, Physical
Saikumar Manchala, Ambedkar Gandamalla, Navakoteswara Rao Vempuluru, Shankar Muthukonda Venkatakrishnan, Vishnu Shanker
Summary: The use of carbon quantum dots to prepare a ternary nanocomposite enables efficient hydrogen production under sunlight, achieving a hydrogen evolution rate significantly higher than other composite materials. Encapsulation of CQDs with the LaFeO3/CdS heterojunction facilitates easy and efficient separation of photo-generated excitons, contributing to the remarkable efficiencies in sustainable hydrogen production.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Saikumar Manchala, Kaushik Pal, Vishnu Shanker
Summary: Nitrogen-rich carbon nanospheres (NCNs) with uniform low diameter and high specific surface area were successfully synthesized by a simple and facile soft-template strategy, showing excellent electrochemical performance.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Multidisciplinary
Ambedkar Gandamalla, Saikumar Manchala, Vishnu Shanker
Summary: Efficient hybrid composite materials were synthesized and characterized for environmental remediation applications. The optimized SMO/G-CN-10 composite photocatalyst showed superior performance for the degradation of Rhodamine B dye under direct sunlight, with significantly increased photocatalytic efficiency. Good interfacial interactions between G-CN and SMO in the composite played a key role in enhancing the separation and transfer of photo-induced excitons, leading to improved stability and performance even after multiple runs.
Article
Environmental Sciences
Ambedkar Gandamalla, Saikumar Manchala, Atul Verma, Yen-Pei Fu, Vishnu Shanker
Summary: The study synthesized highly efficient zinc-aluminum layered double hydroxides with graphitic carbon nitride (ZALDH/CN) composites for the degradation of CIP under visible light. The ZALDH/CN composites showed a high synergistic effect with more specific surface area, leading to enhanced visible light adsorption capacity and catalytically active sites. The study demonstrated superior photocatalytic activity of ZALDH/CN composites for antibiotic pollutant CIP degradation under visible-light illumination.
Article
Chemistry, Physical
Antara Sarkar, Anirban Das, Soumen Ash, Ravi P. N. Shankar, Kaustava Bhattacharyya, Ashok K. Ganguli
Summary: By investigating A-site substitution in perovskite compounds R0.5Sr0.5Fe0.5Mn0.5O3, the study found that increasing rare earth cation size from Gd to Nd to Pr led to decreased octahedral distortion and different magnetic properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Gurvinder Singh Bumbrah, Mithlesh Jani, Devidas S. Bhagat, Komal Dalal, Akshey Kaushal, K. Sadhana, G. Sriramulu, Anirban Das
Summary: In this study, ZnO nanoparticles were synthesized using hydrothermal method and characterized. These nanoparticles can develop sharp and clear fingerprints on various surfaces without background noise, and they are non-hazardous and cost-effective.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Priyanka Yadav, Anirban Das, Manoj Kumar Sharma, Soumen Ash, Ashok Kumar Ganguli
Summary: Quasi two-dimensional transition metal dichalcogenides (2D-TMDs) with 1-5 layers were obtained through the development of an effective bio-based polymer-solvent system and mild ultrasonication, resulting in a stable dispersion that can be maintained in suspension for several months.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Inorganic & Nuclear
Antara Sarkar, Anirban Das, Soumen Ash, Kandalam V. Ramanujachary, Samuel E. Lofland, Nibedita Das, Kaustava Bhattacharyya, Ashok Kumar Ganguli
Summary: We synthesized Sr2YbRu1-x Ta x O6 and studied its structural, magnetic, and photoelectrocatalytic properties. The substitution of Ta for Ru affected the magnetic properties, band gap, and valence band energy level. The series showed antiferromagnetic interaction and the Weiss temperature decreased with the increase of Ta concentration. The band gap increased linearly with the increase of Ta concentration, and the energy level of the valence band decreased. The series also exhibited good photoelectrocatalytic activity for the oxygen evolution reaction.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Saikumar Manchala, Ambedkar Gandamalla, Vempuluru Navakoteswara Rao, Shankar Muthukonda Venkatakrishnan, Vishnu Shanker
Summary: Carbon nanospheres (CNS) possess great potential in photocatalysis due to their unique opto-electronic properties, facilitating effective electron transfer and high visible-light absorption. This study focused on the design and synthesis of a novel ternary hierarchical SrTiO3/CdS/carbon nanospheres photocatalytic system, which demonstrated excellent H-2 production under sunlight illumination. Surface imaging and chemical analysis explained the formation of the ternary photocatalytic system, while the incorporation of carbon nanospheres improved electron transfer in the hierarchical ternary system, resulting in high H-2 production.
JOURNAL OF NANOSTRUCTURE IN CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Ambedkar Gandamalla, Saikumar Manchala, Pandiyarajan Anand, Yen-Pei Fu, Vishnu Shanker
Summary: The study synthesized a versatile hybrid photocatalyst, CdMoO4/g-C3N4 (CMO/CN), through a simple hydrothermal method, and characterized it with various techniques to reveal the formation of an active photocatalyst through a strong heterojunction between two semiconductors.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Ashok K. Ganguli, Anirban Das, Saikumar Manchala, Shalini Tiwari
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2020)