Article
Engineering, Chemical
Pravin Dudhagara, Jemisha Alagiya, Chintan Bhagat, Dushyant Dudhagara, Anjana Ghelani, Jigna Desai, Rajesh Patel, Ashaka Vansia, Dao Ngoc Nhiem, Yih-Yuan Chen, Douglas J. H. Shyu
Summary: The study explores the synthesis and characterization of silver nanoparticles (AgNPs), showing that heat-denatured lysozyme-mediated formulation can enhance bactericidal activity and blood compatibility. AgNPs also exhibit antiplatelet effects. The findings suggest that lysozyme-functionalized AgNPs have promising potential for addressing issues like in-stent restenosis and thrombosis.
Article
Crystallography
Yuxiao Zhang, Xuntao Jiang, Xia Wu, Xiaoqiang Wang, Fang Huang, Kefei Li, Gaoyang Zheng, Shengzhou Lu, Yanxu Ma, Yuyu Zhou, Xiaoxi Yu
Summary: This study aimed to investigate the effects of nucleate agent sizes on lysozyme crystallization. The results showed that the size of silica nanoparticles had an impact on the morphological defects and quantity of lysozyme crystals. The interaction between silica nanoparticles and lysozyme was found to be mainly electrostatic, which increased with the size of the nanoparticles.
Article
Nanoscience & Nanotechnology
Tomohito Nakayama, Kaito Kobayashi, Tomoshi Kameda, Muneaki Hase, Atsushi Hirano
Summary: Nanoparticles in biological systems are readily coated by proteins, forming protein coronas. This study reveals that nanoscale antibody aggregates also form protein coronas induced by human serum albumin, and these complexes are stable in blood. Mechanistic insights into protein corona formation on nanoscale antibody aggregates are helpful for understanding the unintentional biological impacts of antibody drugs.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Tomohito Nakayama, Kaito Kobayashi, Tomoshi Kameda, Muneaki Hase, Atsushi Hirano
Summary: This study investigates the formation of protein corona on nanoscale antibody aggregates induced by HSA, demonstrating the stability of nanoscale antibody-HSA complexes in blood with approximately 150 mM salt ions.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Ying Zhao, Zheng Mei, Feng-Qi Zhao, Si-Yu Xu, Xue-Hai Ju
Summary: The addition of aluminum nanoparticles (ANP) enhances heat release and accelerates the decomposition of pentaerythritol tetranitrate (PETN). ANP inhibits CO2 emissions and increases H2O yields. Both particle size and passivated layer influence the oxidation mechanisms due to different surface effects.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Daocheng Lin, Na Li, Chengzhi Wei, Zhanzhong Wang
Summary: This study investigated the use of Ionic liquids (ILs) as additives to regulate lysozyme crystallization. It was found that the addition of ILs induced changes in the solution structure and increased the content of beta-sheet structures in lysozyme. Molecular simulation and docking analysis further revealed the binding between ILs and lysozyme molecules, suggesting that ILs can stably interact with lysozyme in solution.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Analytical
Muniyandi Maruthupandi, Nagamalai Vasimalai
Summary: This research successfully prepared Trehalose capped silver nanoparticles through a solvent-free solid-state method and applied them as sensors for L-Cysteine and Cu2+ ions. The concentration of L-Cysteine and Cu2+ ions was detected based on changes in the SPR band, providing a new method for detecting these substances in environmental, biological, and drug samples.
MICROCHEMICAL JOURNAL
(2021)
Article
Plant Sciences
Changxia Li, Xuefang Lu, Yunzhi Liu, Junrong Xu, Wenjin Yu
Summary: This study reveals the regulatory mechanism of Tre in enhancing drought tolerance during cucumber adventitious root formation. Tre can counteract the negative effects of drought stress by regulating ROS, Tre metabolism, and plant hormones.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Spectroscopy
Kumar Krishnaveni, Shunmugasundaram Gurusamy, Veerasamy Sathish, Pounraj Thanasekaran, Alagarsamy Mathavan
Summary: A novel pyrene-naphthalene sulphonyl conjugate, PSN, was designed and synthesized and showed fluorescence enhancement in THF with increased water content, attributed to the phenomenon of aggregated induced emission. PSN exhibited selective sensing of H2PO4- and F- ions with low detection limits and a visible color change observed by the naked eye. Docking studies revealed important interactions for the binding of PSN with LYZ, involving hydrogen bonding and hydrophobic interactions.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Pharmacology & Pharmacy
Eugene Jeong, Bradley Malin, Scott D. Nelson, Yu Su, Lang Li, You Chen
Summary: The landscape of drug-drug interactions (DDIs) has evolved significantly over the past 60 years. This study utilizes network analysis to uncover the complex relationships between drugs and provides a deeper understanding of the shifting focus in DDI research.
FRONTIERS IN PHARMACOLOGY
(2023)
Article
Chemistry, Applied
Haobo Jin, Peishan Li, Yongguo Jin, Long Sheng
Summary: The study investigated the mechanism by which sodium tripolyphosphate affected the aggregation behavior of ovalbumin-lysozyme complexes. The results indicated that phosphorylation increased turbidity, weakened structure unfolding and stretching, and resulted in a broader network structure of the complex.
Article
Biochemistry & Molecular Biology
Kinga Skrzyniarz, Javier Sanchez-Nieves, F. Javier de la Mata, Malgorzata Lysek-Gladysinska, Karolina Lach, Karol Ciepluch
Summary: Drug resistance is a global problem that has prompted the scientific community to search for alternative methods to combat resistant pathogens. Two promising alternatives are membrane permeabilizers and enzymes that degrade bacterial cell walls. This study provides insight into the mechanism of lysozyme transport strategies using two types of carbosilane dendronized silver nanoparticles, DendAgNPs and PEG-DendAgNPs, for outer membrane permeabilization and peptidoglycan degradation. The results show that DendAgNPs accumulate on the bacterial cell surface, destroying the outer membrane and allowing lysozymes to enter and destroy the cell wall. PEG-DendAgNPs, on the other hand, inhibit bacterial growth by causing enzyme accumulation and penetration near the bacterial membrane.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biotechnology & Applied Microbiology
Rachita Lakra, Manikantan Syamala Kiran, Purna Sai Korrapati
Summary: The study focused on the green synthesis of silver nanoparticles with furfural for the photocatalytic reduction of hexavalent chromium. The efficiency of FAgNPs in reducing Cr(VI) was investigated with varying initial concentration, pH, catalyst dosage, and time. It was observed that FAgNPs showed a reduction efficiency of 9% to 88% at pH 2 under UV illumination.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Environmental Sciences
Ismet Meydan, Hamdullah Seckin, Hakan Burhan, Tugba Gur, Bahareh Tanhaei, Fatih Sen
Summary: The advancement of nanotechnology in the scientific world contributes significantly to living systems, particularly when combined with plant-derived resources. The synthesis of nanoparticles using silver metal and Arum italicum plant has shown promising results in antibacterial activity and DNA damage prevention. However, the nanoparticles did not exhibit antifungal effects against Candida albicans. The interaction between the plant and silver metal was analyzed through various methods, showing potential applications in antimicrobial and antioxidant properties.
ENVIRONMENTAL RESEARCH
(2022)
Article
Agriculture, Multidisciplinary
Yan-Suan Lee, Dar-Ming Lai, Hei-Jen Huang, Guey-Jen Lee-Chen, Ching-Hwa Chang, Hsiu Mei Hsieh-Li, Guan-Chiun Lee
Summary: Lactulose and melibiose were found to alleviate cognitive impairments in AD mice through anti-inflammatory and autophagy mechanisms, with lactulose showing better enhancement of synaptic protein expression levels. These findings suggest that lactulose could potentially be developed as a preventive and/or therapeutic disaccharide for AD.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Chemistry, Physical
K. R. Pradeep, Debdipto Acharya, Priyanka Jain, Kushagra Gahlot, Anur Yadav, Andrea Camellini, Margherita Zavelani-Rossi, Giulio Cerullo, Chandrabhas Narayana, Shobhana Narasimhan, Ranjani Viswanatha
ACS ENERGY LETTERS
(2020)
Article
Chemistry, Multidisciplinary
Kolleboyina Jayaramulu, Michael Horn, Andreas Schneemann, Haneesh Saini, Aristides Bakandritsos, Vaclav Ranc, Martin Petr, Vitalie Stavila, Chandrabhas Narayana, Blazej Scheibe, Stepan Kment, Michal Otyepka, Nunzio Motta, Deepak Dubal, Radek Zboril, Roland A. Fischer
Summary: The study demonstrates the covalent attachment of an amine functionalized metal-organic framework to carboxylate functionalized graphene, resulting in a hybrid material with high capacitance and cycling stability. An asymmetric supercapacitor was successfully constructed using this hybrid material, showing comparable performance to commercial devices such as Pb-acid and Ni/MH batteries. The amide linkage plays a key role in forming a p-conjugated structure, facilitating charge transfer and enhancing capacitance and cycling stability.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Amit Mallik, I Roy, D. Chalapathi, C. Narayana, T. D. Das, A. Bhattacharya, S. Bera, S. Bhattacharya, Sriparna De, B. Das, D. Chattopadhyay
Summary: In this work, a single-step method using a pressure cooker for the synthesis of reduced graphene oxide (RGO)/SnO2 nanocomposite was described. The nanocomposite was characterized using various techniques and showed high capacity and efficiency in optical applications. The study indicates potential applications in semiconductor industries for this nanohybrid material.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Chemistry, Physical
Supti Das, Dhanya Radhakrishnan, Venkata S. Bhadram, Chandrabhas Narayana, Aninda J. Bhattacharyya
Summary: Ionic liquids based on pyrrolidinium salts exhibit good ionic conductivity in solid-state due to highly disordered plastic crystalline phase, along with multiple phase transitions characterized by varying levels of molecular disorder. Brillouin light scattering technique can efficiently provide insights into the complex phase behavior, microscopic structure, and dynamics of ionic liquids, such as different disordered phases and anomalous temperature-dependent behavior of acoustic modes observed in certain phases.
SOLID STATE IONICS
(2021)
Article
Chemistry, Physical
Subarna Das, P. Singha, V. A. Kulbachinskii, V. G. Kytin, Gangadhar Das, S. Janaky, A. K. Deb, Sudip Mukherjee, A. Maignan, S. Hebert, R. Daou, Chandrabhas Narayana, S. Bandyopadhyay, Aritra Banerjee
Summary: This study investigates the reduction of lattice thermal conductivity (kappa(L)) in a Sb2Te3/graphite nanocomposite system, demonstrating a 40% decrease with graphite incorporation. Phonon scattering dominates the heat transport mechanism in the nanostructured composite, with graphite introducing effective scattering sources. The comprehensive study achieves a low kappa(L) value of 0.8 W m(-1)K(-1) at 300 K, making it an interesting concept for development in thermoelectric materials.
JOURNAL OF MATERIOMICS
(2021)
Article
Chemistry, Inorganic & Nuclear
Venkata S. Bhadram, Abhijit Sen, Janaky Sunil, Debendra Prasad Panda, Athinarayanan Sundaresan, Chandrabhas Narayana
Summary: The pressure dependence of octahedral distortions in rare-earth orthochromites has been studied using Raman scattering technique to understand the origin of structural transition. The changes in tilt distortion behavior at different pressures were observed, with a critical R-ion radius identified. The relationship between this unusual crossover and compressibility at Cr- and R-sites was investigated by probing Raman phonon modes sensitive to bond strength.
SOLID STATE SCIENCES
(2021)
Article
Chemistry, Physical
Soumyabrata Roy, Debabrata Bagchi, Lakshay Dheer, Saurav Ch. Sarma, Vincent Rajaji, Chandrabhas Narayana, Umesh V. Waghmare, Sebastian C. Peter
Summary: The promotion effect of Ni substitution on the bifunctional overall water splitting activity of Ni-MoC/WC@NGC supported on N-doped graphitic carbon is elucidated. Ni substitution significantly improves the OWS performance, especially in the hydrogen evolution reaction. In acidic media, Ni-MoC@NGC exhibits lower onset overpotential and higher current density, enabling water splitting with the assistance of a commercial battery.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Biochemistry & Molecular Biology
Dipayan Bose, Shantanu Aggarwal, Debashree Das, Chandrabhas Narayana, Abhijit Chakrabarti
Summary: Hemoglobin oxidation leads to ROS generation and membrane damage, but the interaction with spectrin can increase its peroxidase activity and limit oxidative damage. Spectrin also modulates the peroxidase activity of different hemoglobin variants and other heme proteins.
Article
Multidisciplinary Sciences
M. B. Shoker, T. Alhaddad, O. Pages, V. J. B. Torres, A. V. Postnikov, A. Polian, R. Hajj Hussein, G. K. Pradhan, C. Narayana, C. Gardiennet, G. Kervern, L. Nataf, S. Ravy, J. -P. Itie, K. Strzalkowski, A. Marasek, F. Firszt
Summary: The vibrational properties of Zn1-xBexTe under pressure were studied using Raman scattering and ab initio Raman/phonon calculations. The study found that the Be-like environment hardens faster than the Zn-like one under pressure, resulting in the closer proximity and mechanical coupling of the two sub-modes per doublet. It was also observed that when a bond forms a matrix-like continuum, its two submodes can freely couple and stabilize into an inverted doublet under pressure, while in-chain vibrations are "killed" at resonance when the bond merely self-connects via treelike chains.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Multidisciplinary
Bidesh Biswas, Sourjyadeep Chakraborty, Anjana Joseph, Shashidhara Acharya, Ashalatha Indiradevi Kamalasanan Pillai, Chandrabhas Narayana, Vijay Bhatia, Magnus Garbrecht, Bivas Saha
Summary: This study demonstrates that the formation of secondary metallic Cr2N phase inhibits the observation of metal-insulator phase transition in CrN thin films. By reducing the Cr flux during deposition, epitaxial and stoichiometric CrN thin films are obtained, which exhibit the phase transition.
Article
Chemistry, Inorganic & Nuclear
K. Kamali, Boby Joseph, Chandrabhas Narayana
Summary: This study reports on the chemical stability of ZIF-7 under pressure using Raman spectroscopy. The results demonstrate a reversible pressure response of ZIF-7 up to 8 GPa in non-penetrating media. However, increasing pressures above 12 GPa lead to an irreversible ring-opening polymerization and disordered phase. The lower chemical stability of ZIF-7, compared to prototypic ZIF-8, is attributed to the hydrogen bonding C-H-pi interaction. This study highlights the importance of various substituents in the imidazole linkers of ZIFs for gas storage applications under pressure.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Materials Science, Coatings & Films
Venkataramana Bonu, G. Srinivas, V. Praveen Kumar, Anjana Joseph, Chandrabhas Narayana, Harish C. Barshilia
Summary: Developing metal dopant-free single phase thick diamond-like carbon (DLC) coatings for automobile applications is challenging due to internal stress issues. In this study, a simple process was used to deposit thick Cr/CrN/DLC coating on plasma nitrided steel, resulting in good adhesion and low friction coefficient. The coating also exhibited significantly better erosion resistance compared to the nitrided steel substrate at various temperatures. Additionally, multi-wavelength Raman spectroscopy was utilized to study the structural properties and thermal stability of the coating.
SURFACE & COATINGS TECHNOLOGY
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
K. Kamali, Chandrabhas Narayana
Summary: This study investigates the structural and chemical changes of the metal-organic framework (MOF) compound MIL-47(V) under pressure using water as a pressure transmitting medium. The results show that MIL-47(V) undergoes reversible replacement of the free terephthallic acid (TPA) by H2O molecules during compression, and the hydroxyl linked vanadium octahedra exhibit unique high pressure chemistry. The tunable bridging group in MIL-47(V) enables the removal and insertion of organic molecules in MOFs through pressure induction.
MATERIALS TODAY-PROCEEDINGS
(2022)
Article
Materials Science, Multidisciplinary
Pavitra N. Shanbhag, Anjana Joseph, Fabio Orlandi, Pascal Manuel, R. Mahendiran, Francois Fauth, Chandrabhas Narayana, A. Sundaresan, C. N. R. Rao
Summary: A comprehensive study on gallium-doped polycrystalline V2O3 reveals interesting features of the structural, magnetic, and electronic phase transitions, including the enhancement of the Néel temperature by gallium doping and the decoupling of the structural transition from the magnetic and insulator-insulator transition.
Article
Materials Science, Multidisciplinary
Achintya Bera, Anjali Singh, Y. A. Sorb, Ramesh Naidu Jenjeti, D. V. S. Muthu, S. Sampath, Chandrabhas Narayana, U. Waghmare, A. K. Sood
Article
Chemistry, Physical
Yiping Yin, Zhe Wang, Hua Zou
Summary: This study presents a novel method for preparing dimpled polymer-silica nanocomposite particles using interfacial swelling-based seeded polymerization. The optimized conditions allow for a relatively high percentage of dimpled particles to be achieved.
Article
Chemistry, Physical
Brenden D. Hoehn, Elizabeth A. Kellstedt, Marc A. Hillmyer
Summary: Porous materials with nanometer-scale pores have important applications as nanoporous membranes. In this study, ABA triblock copolymers were used as precursors to produce nanoporous polymeric membranes (NPMs) in thin film form by degrading the end blocks. Polycyclooctene (PCOE) NPMs with tunable pore sizes were successfully prepared using solvent casting technique. Oxygen plasma etching was employed to improve the surface porosity and hydrophilicity of the membranes. This study provides a straightforward method to produce tough NPMs with high porosity and hydrophilic surface properties.
Article
Chemistry, Physical
Vladislav S. Petrovskii, Stepan I. Zholudev, Igor I. Potemkin
Summary: This article investigates the behavior of linear and ring polypeptide chains in aqueous solution and explores the properties of the complexes formed by these chains with oppositely charged surfactants. The results demonstrate that the complexes of linear supercharged unfolded polypeptides and the corresponding surfactants exhibit impressive adhesive properties.
Article
Chemistry, Physical
Merve Cevik, Serkan Dikici
Summary: Cardiovascular diseases are a leading cause of death globally, and vascular grafts are a promising treatment option. This study focuses on tissue-engineered vascular grafts (TEVGs) using decellularized parsley stems as a potential biomaterial. The decellularized parsley stems showed suitable properties for TEVGs, providing a suitable environment for human endothelial cells to form a pseudo endothelium. This study showcases the potential of using parsley stems for TEVGs.
Article
Chemistry, Physical
Gustavo A. Vasquez-Montoya, Tadej Emersic, Noe Atzin, Antonio Tavera-Vazquez, Ali Mozaffari, Rui Zhang, Orlando Guzman, Alexey Snezhko, Paul F. Nealey, Juan J. de Pablo
Summary: The optical properties of liquid crystals are typically controlled by electric fields. In this study, we investigate the effects of microfluidic flows and acoustic fields on the molecular orientation and optical response of nematic liquid crystals. We identify several previously unknown structures and explain them through calculations and simulations. These findings hold promise for the development of new systems combining sound, flow, and confinement.
Article
Chemistry, Physical
Xinjun Wu, Xin Guan, Shushu Chen, Jiangpeng Jia, Chongyi Chen, Jiawei Zhang, Chuanzhuang Zhao
Summary: This research presents a novel shape memory hydrogel with a remodelable permanent shape and programmable cold-induced shape recovery behavior. The hydrogel is prepared using specific treatment methods to achieve shape fixation by heating and shape recovery by cooling. Additionally, deformable devices can be obtained by assembling hydrogel blocks with different concentrations.
Article
Chemistry, Physical
Rebecca Hengsbach, Gerhard Fink, Ulrich Simon
Summary: This study examines the properties of DNA functionalized pNipmam microgels and pure pNipmam microgels at different concentrations of sodium chloride and in PBS solutions using temperature dependent H-1-NMR measurements. The results show that DNA modification affects the volume phase transition temperature and the addition of salt and PBS further enhances this effect.
Article
Chemistry, Physical
Ningyi Li, Junhong Li, Lijingting Qing, Shicheng Ma, Yao Li, Baohui Li
Summary: This paper investigates the self-assembly behavior of colloids with competing interactions under spherical confinement and finds that different ordered structures can be formed under different sized spherical confinements. Moreover, more perforated structures are formed in smaller spheres.
