917 results match your criteria: "Center for Materials Science[Affiliation]"

Strategy for Fabricating Degradable Low-Surface-Energy Cross-Linked Networks with Excellent Anti-Fouling Properties.

ACS Appl Mater Interfaces

January 2025

National Experimental Teaching Demonstration Center for Materials Science and Engineering, School of Materials Science and Engineering, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing 100191, China.

Marine biofouling negatively impacts marine industries and ship navigation. However, current coatings are based on a single antifouling mechanism, which is insufficient to cope with the complex and ever-changing marine environment. Herein, multifunctional antifouling coatings were developed using a material system containing perfluoropolyether and caprolactone chains.

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Reaction mechanism with indano[60]fullerene bromide for evaporable fullerene derivatives.

Chem Commun (Camb)

January 2025

Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.

Article Synopsis
  • Indano[60]fullerene bromide is an important intermediate in making indano[60]fullerene ketone, a derivative that can easily evaporate.
  • Researchers utilized aqueous hydrobromic acid to create a consistent and high-yielding reaction process.
  • A method for a scalable one-pot synthesis of indano[60]fullerene ketone from aryl[60]fullerenyl dimers was successfully demonstrated.
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PtGd alloy nanoparticles supported in hollow mesoporous carbon spheres (HMCS; ) were successfully prepared by the thermal reduction of organometallic Pt and Gd complexes without oxygen atoms supported in the pores of HMCS. The structures of PtGd alloy nanoparticles were fully characterized by TEM, HAADF-STEM-EDS, XRD, XAFS, and XPS, suggesting the formation of uniform PtGd alloy nanoparticles with an average particle size of 5.9 nm.

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Patients with rheumatoid arthritis (RA), an inflammatory illness that affects the synovial joints, have a much worse quality of life. Mostly, oral or injectable formulations are used to treat RA, underscoring the critical need for an innovative medication delivery method to enhance therapeutic outcomes and patient compliance. The present study integrated 3D bioprinting and electrospinning technologies to create a unique double-layered transdermal patch (TDDP) for the treatment of RA.

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Developing and creating novel antibiotics is one of the most important targets in treating infectious diseases. Novel coumarins were synthesized and characterized using different spectroscopic techniques such as Fourier Transform Infrared (FTIR), Nuclear magnetic resonanceH and C and mass spectroscopy (MS). All of the synthesized compounds have been tested for activity and sensitivity against the microbial strains of B.

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Quantification of vehicular uncorrelated Li-solvent transport in highly concentrated electrolytes solvent-related Onsager coefficients.

Phys Chem Chem Phys

December 2024

Department of Chemistry and Center for Materials Science (WZMW), University of Marburg, Hans-Meerwein-Straße 4, 35032 Marburg, Germany.

Highly concentrated salt solutions are promising electrolytes for battery applications due to their low flammability, their high thermal stability, and their good compatibility with electrode materials. Understanding transport processes in highly concentrated electrolytes is a challenging task, since strong ion-ion and ion-solvent interactions lead to highly correlated movements on the microscopic scale. Here, we use an experimental overdetermination method to obtain accurate Onsager transport coefficients for concentrated binary electrolytes composed of either sulfolane (SL) or dimethyl carbonate (DMC) as solvent and either LiTFSI or LiFSI as salt.

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Manual Dexterity in Open-Water Wetsuited Swimmers: A Cohort Crossover Study.

Int J Sports Physiol Perform

December 2024

Department of Anesthesiology and Intensive Care, Akershus University Hospital, Lørenskog, Norway.

Purpose: Laboratory studies have demonstrated that manual dexterity decreases with increasing cold, which may adversely affect performance. Dexterity may be impaired by cooling of the hand, cooling of the lower motor neurons, and cognitive impairment. Wetsuits are commonly used in open-water swimming and are mandated in some situations.

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P-block metal carbon-supported single-atom catalysts (C-SACs) have emerged as a promising candidate for high-performance room-temperature sodium-sulfur (RT Na-S) batteries, due to their high atom utilization and unique electronic structure. However, the ambiguous electronic-level understanding of Na-dominant s-p hybridization between sodium polysulfides (NaPSs) and p-block C-SACs limits the precise control of coordination environment tuning and electro-catalytic activity manipulation. Here, s-p orbital overlap degree (OOD) between the s orbitals of Na in NaPSs and the p orbitals of p-block C-SACs is proposed as a descriptor for sulfur reduction reaction (SRR) and sulfur oxidation reaction (SOR).

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High-Performance Solution-Processable Organic Light-Emitting Diode Based on a Narrowband Near-Ultraviolet Emitter and a Hot Exciton Strategy.

Angew Chem Int Ed Engl

December 2024

School of Materials Science and Engineering, Jiangsu Engineering Research Center of Light-Electricity-Heat Energy-Converting Materials and Applications, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Jiangsu Key Laboratories of Environment-Friendly Polymers, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou, 213164, P. R. China.

Achieving high efficiency narrowband near-ultraviolet (NUV) emitters in organic light emitting diode (OLED) is still a formidable challenge. Herein, a proof-of-concept hybridized local and charge transfer (HLCT) molecule, named ICz-BO, is prepared and characterized, in which both multiresonant (MR) skeletons are integrated via conjugation connection. A slightly distorted structure and weak intramolecular charge transfer (CT) interaction between two MR subunits lead to a high-lying reverse intersystem crossing (h-RISC) channel of T→S, also evidenced by both experimental and calculated results.

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Microfluidic-based fluorescence enhancement of silica-embedded carbon dots for direct detection and quantification of unamplified HCV RNA in clinical samples.

Anal Chim Acta

January 2025

Center of Genomics, Helmy Institute, Zewail City of Science and Technology, Sheikh Zayed Dist, 12588, Giza, Egypt; Pathology and Molecular Genomics Unit of Medical Ain Shams Research Institute (MASRI), Faculty of Medicine, Ain Shams University. Cairo, 11591, Cairo, Egypt; Biochemistry Department, Faculty of Pharmacy, Misr University for Science and Technology, 12566, Giza, Egypt. Electronic address:

Article Synopsis
  • Hepatitis C Virus (HCV) is a serious, chronic infection that often shows no symptoms, making early detection crucial for treatment and infection control.
  • Current detection methods like PCR are expensive and time-consuming, which limits their use in smaller labs and field settings.
  • A new technology using crosslinked Enhanced Emission (CEE) has been developed for detecting HCV RNA with high sensitivity and speed, allowing results in under 20 minutes via a 3D-printed microfluidic chip, achieving impressive sensitivity (96.47%) and specificity (98.79%).
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Concise Affinity-Based Purification of Ligated mRNA for Structure-Activity Relationship Studies of Nucleosugar Modification Patterns.

Chembiochem

November 2024

Modality Research Laboratories 1, Research Unit, Research Division, Kyowa Kirin Co., Ltd., 3-6-6 Asahi, Machida, Tokyo, 194-8533, Japan.

Position-specific nucleoside sugar modifications have been shown to improve the translational activity and stability of chemically synthesized mRNA. For pharmaceutical applications of chemically modified mRNAs, a rapid purification methodology is imperative to identify the optimal modification pattern. However, while the chemical synthesis of mRNAs can be accomplished by splint ligation of oligonucleotide fragments, the current purification method for ligated mRNAs based on denaturing polyacrylamide gel electrophoresis tends to be time consuming.

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High-Velocity Impact Performance of Ballistic Fabric Using Core-Spun Compound Yarns.

Polymers (Basel)

October 2024

School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China.

In this paper, the usage of core-spun compound yarns in ballistic fabric to improve ballistic performance is considered, as with the use of core-spun compound yarns, the yarn friction inside the fabric is enhanced, and, therefore, the energy absorption capability of the fabric is expected to increase. Three types of fabric were developed and compared. F refers to a woven type made with 100% Kevlar filament yarns.

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Circularly polarized luminescence induction on a Tb(III) complex with a tris(-butylaryloxide)-functionalized 1,4,7-triazacyclononane ligand coordinating chiral 1-phenylethylamine.

Chem Commun (Camb)

November 2024

Department of Chemistry, Graduate School of Science/Integrated Research Consortium on Chemical Science/Research Center for Materials Science, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi, 464-8602, Japan.

Circularly polarized luminescence (CPL) activity was induced on a racemic Tb complex with a 1,4,7-triazacyclononane-based tris-phenoxide ligand by the coordination of a chiral 1-phenylethylamine ligand to the Tb centre. -Butyl groups at the -position of the phenoxide moieties were found to be important for efficient CPL induction in the Tb complex.

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We developed phosphorylation reagents with a nitrobenzyl hydrophobic tag and used them for 5'-phosphorylation of chemically or transcriptionally synthesized RNA. The capability of hydrophobic tags to synthesize 5'-monophosphorylated RNA was evaluated based on the yield of the desired oligonucleotides, stability of protecting groups during cleavage/deprotection, separation ability in reverse-phase HPLC (RP-HPLC), and deprotection efficiency after RP-HPLC purification. The results showed that a nitrobenzyl derivative with a tert-butyl group at the benzyl position was most suitable for RNA 5'-phosphorylation.

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Herein we report on an environmentally friendly and scalable production route for hollow silica spheres (HSSs). The process is based on close to 100% conversion of non-crystalline solid Si nanoparticles ( = 40 ± 9 nm) in mild alkaline solutions (pH ≤ 9.0) at ambient temperature.

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Dibenzothiophene S, S-Dioxide-Containing Dipolar Molecules As Efficient Hole-Transport Materials for Perovskite Solar Cells.

ACS Appl Mater Interfaces

October 2024

School of Material Science & Engineering, National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Province Cultivation base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou 213164, Jiangsu, China.

Organic-inorganic hybrid perovskite solar cells (OIH-PSCs) have developed rapidly in the past decade, and the commercialization of OIH-PSCs demands low-cost hole-transport materials (HTMs) with high performance and stability. The present study synthesized two organic HTMs containing dibenzothiophene S-dioxide as the acceptor unit and triphenylamine as the donor (denoted by TPAF-SO2 and TPA-SO2). In TPAF-SO, the methoxy group and adjacent fluorine atom were introduced to decrease the highest occupied molecular orbital energy level.

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Understanding excipient-induced crystallization of spray-dried amorphous solid dispersion.

J Pharm Sci

January 2025

Center for Materials Science and Engineering, Merck & Co., Inc., 770 Sumneytown Pike, West Point, PA 19486, United States. Electronic address:

This study investigates the compatibility of excipients with the model system SDI-X and their role in the induced crystallization of the amorphous compound-X in tablet formulations. We aimed to establish a straightforward and practical screening approach for evaluating excipient-induced crystallization of SDI in tablet matrices. Three methodologies-binary powder mixture, binary compact, and bilayer tablets-were employed to qualitatively and quantitatively evaluate the recrystallization of SDI-X with various excipients under accelerated storage conditions.

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Polystyrene Chain Geometry Probed by Ion Mobility Mass Spectrometry and Molecular Dynamics Simulations.

J Am Soc Mass Spectrom

October 2024

Organic Synthesis and Mass Spectrometry Laboratory, Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons - UMONS, 23 Place du Parc, B-7000 Mons, Belgium.

Polystyrene (PS) is a thermoplastic polymer commonly used in various applications due to its bulk properties. Designing functional polystyrenes with well-defined structures for targeted applications is of significant interest due to the rigid and apolar nature of the polymer chain. Progress is hindered to date by the limitations of current analytical methods in defining the atomistic-level folding of the polymer chain.

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Preparation and Properties of Nb-Doped BCZT-Based Ceramic Thick Films by Scraping Process.

Materials (Basel)

September 2024

School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou 213164, China.

A bottleneck characterized by high strain and low hysteresis has constantly existed in the design process of piezoelectric actuators. In order to solve the problem that actuator materials cannot simultaneously exhibit large strain and low hysteresis under relatively high electric fields, Nb-doped 0.975(BaCa)[(ZrTi)Nb]O-0.

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Synthesis of 2'-formamidonucleoside phosphoramidites for suppressing the seed-based off-target effects of siRNAs.

Nucleic Acids Res

October 2024

Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan.

Article Synopsis
  • The study focuses on synthesizing 2'-formamidonucleoside phosphoramidite derivatives and using them in siRNA to minimize seed-based off-target effects.
  • All four nucleoside variants (A, G, C, U) were created from commercial compounds, showing a slight reduction in thermodynamic stability but maintaining the essential A-form structure.
  • The introduction of these derivatives caused some decrease in on-target RNA interference (RNAi) activity when placed in specific positions, yet they significantly reduced off-target effects while preserving on-target activity when used in other positions.
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Metal-ligand delocalization of metal porphyrin complexes in aqueous solutions was investigated by analyzing the electronic structure of both the metal and ligand sides using soft X-ray absorption spectroscopy (XAS) at the metal L-edges and nitrogen K-edge, respectively. In the N K-edge XAS spectra of the ligands, the energies of the CN π* peaks of cobalt protoporphyrin IX (CoPPIX) are higher than iron protoporphyrin IX (FePPIX). The energy difference between the two lowest peaks in the XAS spectrum of CoPPIX is also larger than that of FePPIX.

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Carrier-phonon decoupling in perovskite thermoelectrics via entropy engineering.

Nat Commun

September 2024

State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, PR China.

Thermoelectrics converting heat and electricity directly attract broad attentions. To enhance the thermoelectric figure of merit, zT, one of the key points is to decouple the carrier-phonon transport. Here, we propose an entropy engineering strategy to realize the carrier-phonon decoupling in the typical SrTiO-based perovskite thermoelectrics.

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The cosmetic industry is rapidly rising worldwide. To overcome certain deficiencies of conventional cosmetics, nanomaterials have been introduced to formulations of nails, lips, hair, and skin for treating/alleviating hyperpigmentation, hair loss, acne, dandruff, wrinkles, photoaging, etc. Innovative nanocarrier materials applied in the cosmetic sector for carrying the active ingredients include niosomes, fullerenes, liposomes, carbon nanotubes, and nanoemulsions.

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2-methoxyestradiol sensitizes tamoxifen-resistant MCF-7 breast cancer cells via downregulating HIF-1α.

Med Oncol

August 2024

Pharmacology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Kasr El Aini Street, From El Khalig, Cairo, 11796, Egypt.

The clinical studies for breast cancer (BC) are now assessing the efficacy of 2-Methoxyestradiol (2-ME), a naturally occurring derivative of estradiol. Our study aimed to explore the potential of combining the 2-ME and tamoxifen (TAM) on sensitization of TAM-resistant cells using LCC2 the TAM-resistant cells as a model and comparing the results to the sensitive cells MCF-7. Sulphorhodamine-B (SRB) assay is used to examine the 2-ME chemo-sensitizing impact on the cytotoxicity of TAM on LCC2 cells.

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