bluuebunny/crossref_metadata_2025 huggingface dataset:
SMYD3 drives cell cycle and epithelial-mesenchymal transition pathways through dual gene transcriptional repression and activation in HPV-negative head and neck cancer
Authors: Murali Madhavi , Saeed Abbas , Kim Sohyoung , Burkitt Kyunghee , Cheng Hui , Moshiri Arfa , Akhtar Jawad , Tsai Daniel , Luff Marie , Karim Baktiar , Saloura Vassiliki
Published: January 2025

Human papillomavirus (HPV)-negative head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer type in the world and is associated with an overall poor prognosis. The protein methyltransferase SET and MYND domain-containing 3 (SMYD3), which trimethylates H3K4, activates gene transcription and enhances several oncogenic pathways, including epithelial-mesenchymal transition and cell cycle related pathways, in various cancer types. It was also recently shown that SMYD3 is overexpressed in HPV-negative HNSCC, and represses the expression of type I IFN response genes, contributing to resistance to anti-PD-1 checkpoint blockade in this disease. In this study, we show that SMYD3 depletion using siRNA interference or CRISPR decreases cellular proliferation and clonal capacity, induces cell cycle arrest and decreases the invasive potential of HPV-negative HNSCC cell lines. Accordingly, xenografts of SMYD3 knockout tumors derived from a human HPV-negative HNSCC cell line grew significantly slower compared to control tumors in mice. Genome-wide mapping for SMYD3 and H3K4me3 in HPV-negative HNSCC cells using cleavage under targets and release using nuclease (CUT&RUN) assays identified direct downstream gene targets regulated by SMYD3, including cell cycle- and EMT-promoting genes. This study provides insights into the epigenetic role of SMYD3 as an oncogene in HPV-negative HNSCC and supports SMYD3 as a rational therapeutic target in HPV-negative HNSCC.
Follow-up care needs and motivational factors for childhood cancer survivors and their parents in Germany
Authors: Ekaterina Aleshchenko , Thorsten Langer , Gabriele Calaminus , Juliane Glogner , Kathrin Hellwig , Pietro Trocchi , Enno Swart , Katja Baust
Published: January 2025

This study aims to explore the long-term follow-up needs and motivations of childhood and adolescent cancer survivors and their parents to attend follow-up care in Germany, given the inconsistent adherence to national follow-up guidelines. We developed interview guidelines based on the Theory of Planned Behavior and the stereotype priming model to explore motivations and barriers related to follow-up care. We conducted a total of 36 episodic narrative interviews with adolescent (ages 13–17) and adult (ages 18–45) survivors of pediatric cancer, as well as their parents. We analyzed the transcripts qualitatively using thematic content analysis, while quantitative analysis through multiple regression models was used to support the qualitative findings and identify predictors of follow-up care attendance. We identified key themes across age groups, including a strong need to “return to normal life” and a desire for ongoing organizational and social support. Both survivors and parents highlighted specific needs, including timely, personalized health information and practical help with healthcare logistics. Adolescents particularly valued emotional support from their social circles, whereas adult survivors and parents expressed a need for more structured psychosocial and logistical assistance. The findings suggest that both age and the time elapsed since diagnosis play a role in affecting survivors’ perceived control to attend guideline-based follow-up care. Our findings suggest that a differentiated approach to follow-up care, with age-appropriate support structures, and tailored guidelines, may improve adherence among survivors and their parents. To enhance follow-up care adherence among cancer survivors, healthcare providers could offer tailored, age-specific information and practical assistance with healthcare logistics. Additionally, providing emotional and psychosocial support resources for both survivors and their parents can help address their unique needs at different stages of recovery.

Trial registration: Registered at German Clinical Trial Register (ID DRKS00025960 and DRKS00026092).
MAP4 kinase-regulated reduced CLSTN1 expression in medulloblastoma is associated with increased invasiveness
Authors: Sönmez Ece , Yan Shen , Lin Meng-Syuan , Baumgartner Martin
Published: January 2025

De-regulated protein expression contributes to tumor growth and progression in medulloblastoma (MB), the most common malignant brain tumor in children. MB is associated with impaired differentiation of specific neural progenitors, suggesting that the deregulation of proteins involved in neural physiology could contribute to the transformed phenotype in MB. Calsynthenin 1 (CLSTN1) is a neuronal protein involved in cell-cell interaction, vesicle trafficking, and synaptic signaling. We previously identified CLSTN1 as a putative target of the pro-invasive kinase MAP4K4, which we found to reduce CLSTN1 surface expression. Herein, we explored the expression and functional significance of CLSTN1 in MB. We found that CLSTN1 expression is decreased in primary MB tumors compared to tumor-free cerebellum or brain tissues. CLSTN1 is expressed in laboratory-established MB cell lines, where it localized to the plasma membrane, intracellular vesicular structures, and regions of cell-cell contact. The reduction of CLSTN1 expression significantly increased growth factor-driven invasiveness. Pharmacological inhibition of pro-migratory MAP4 kinases caused increased CLSTN1 expression and CLSTN1 accumulation in cell-cell contacts. Co-culture of tumor cells with astrocytes increased CLSTN1 localization in cell-cell contacts, which was further enhanced by MAP4K inhibition. Our study revealed a repressive function of CLSTN1 in growth-factor-driven invasiveness in MB, identified MAP4 kinases as repressors of CLSTN1 recruitment to cell-cell contacts, and points towards CLSTN1 implication in the kinase-controlled regulation of tumor-microenvironment interaction.
Novel approach to enhance the efficiency of mortar against radiations by co-incorporation of lead and boron compounds with calcium chloride
Authors: Al-kroom Hussein , Ouda Ahmed S. , Ramadan Wageeh , Gharieb Mahmoud , Hamsho Mudar , Abdel-Gawwad Hamdy A.
Published: January 2025

Fabrication of heavy density mortar using aggregates reinforced with available solid inorganic chemical additives is of a great importance as a protective layer to mitigate radiations in nuclear facilities. The effect of lead oxide and borax decahydrate on the hydration kinetics was evaluated by determining setting time, leachability and compressive strength. To speed up the reaction, 0.5% calcium chloride was added to all formulations, and then the results were compared to their blank counterparts. Once, the optimal compositions were explored, another batch of mortar were designed to increase efficiency against radioactive sources with different photon energies. After 28 days, bulk density, linear attenuation coefficient, half-value layer, tenth-value layer, and mean-free path in the field of 137Cs and51Co were considered. Similarly, macroscopic effective removal cross-section was evaluated using radioactive source-239Pu-α-9Be. According to the previous literature, adding 0.2% PbO to cement is the optimal ratio without affecting hydration kinetics and phase composition. The study explored that, co-incorporation of PbO with 0.5% CaCl2 increases the ratio to 2.5%, while enhancing physico-mechanical and radiological characteristics against radioactive sources. Also, formulation incorporating 0.5% borax with 0.5% CaCl2 had superior attenuation against neutrons compared to other competitors.
Thio-modified trianglimines, a novel group of chiral macrocyclic compounds of high structural dynamics
Authors: Prusinowska Natalia , Czapik Agnieszka , Szymkowiak Joanna , Kwit Marcin
Published: January 2025

The embellishing of the macrocycle core with sulfur substituents of varied sterical requirements changes the structural dynamics of chiral, triangular polyimines. Despite their formal high symmetry, these compounds adopt diverse conformations, in which the macrocycle core represents a non-changeable unit. DFT calculations reveal that the mutual arrangement of sulfur-containing substituents is controlled mainly by sterical interactions. The presence of sulfur atoms affects the chiroptical properties of these compounds and causes a red shift of respective absorption bands compared to the basic trianglimine. Unexpectedly, the aromatic fragments attached to the sulfur atom have less impact on ECD spectra, visible only in particular spectral regions. Such a possibility to adapt various conformations is also seen in the crystalline phase; however, a stiff basic unit – the triangular macrocycle core – caused macrocycles’ self-assembly into columnar-like aggregates. In the crystal lattice, around the macrocycle having bulky SCPh3 groups, a space filled with solvent is formed; however, the macrocycle’s internal cavity is closed and unavailable for guest molecules. Titration of the solutions of basic SBn-substituted imine and amine macrocycles by AgOTf results in significant changes in the ECD spectra, confirming possible binding interactions between macrocycle and metal cations.
Developmental beta-cell death orchestrates the islet’s inflammatory milieu by regulating immune system crosstalk
Authors: Akhtar Mohammad Nadeem , Hnatiuk Alisa , Delgadillo-Silva Luis , Geravandi Shirin , Sameith Katrin , Reinhardt Susanne , Bernhardt Katja , Singh Sumeet Pal , Maedler Kathrin , Brusch Lutz , Ninov Nikolay
Published: January 2025

While pancreatic beta-cell proliferation has been extensively studied, the role of cell death during islet development remains incompletely understood. Using a genetic model of caspase inhibition in beta cells coupled with mathematical modeling, we here discover an onset of beta-cell death in juvenile zebrafish, which regulates beta-cell mass. Histologically, this beta-cell death is underestimated due to phagocytosis by resident macrophages. To investigate beta-cell apoptosis at the molecular level, we implement a conditional model of beta-cell death linked to Ca2+ overload. Transcriptomic analysis reveals that metabolically-stressed beta cells follow paths to either de-differentiation or apoptosis. Beta cells destined to die activate inflammatory and immuno-regulatory pathways, suggesting that cell death regulates the crosstalk with immune cells. Consistently, inhibiting beta-cell death during development reduces pro-inflammatory resident macrophages and expands T-regulatory cells, the deficiency of which causes premature activation of NF-kB signaling in beta cells. Thus, developmental cell death not only shapes beta-cell mass but it also influences the islet’s inflammatory milieu by shifting the immune-cell population towards pro-inflammatory.
High-sensitivity and stability electrochemical sensors for chlorogenic acid detection based on optimally engineered nanomaterials
Authors: Chen Lin-Wei , Lu Nannan , Wang Lei
Published: January 2025

The review explores how structural and compositional adjustments in electrocatalysts from different nanomaterial categories enhance chlorogenic acid (CGA) detection performance in electrochemical sensors.
Hollow nanosystem-boosting synergistic effects between photothermal therapy and chemodynamic therapy via self-supplied hydrogen peroxide and relieved hypoxia
Authors: Sun Yunji , Zhen Lixiao , Xu Lin , Li Peipei , Zhang Chao , Zhang Yang , Zhao Yisheng , Shi Benkang
Published: January 2025

Nanomedicine-based photothermal therapy (PTT) has been considered as an excellent alternative for treatment of tumor tissue due to its high therapeutic efficiency and controllable range.
Liquid metal composite with carbon nanotubes for reliable interconnection between Pt electrodes
Authors: Zhexembekova Anar , Lim Seongyeop , Min Hyegi , Lee Chang Young
Published: January 2025

A liquid metal composite with carbon nanotubes suppresses spreading on solid metal substrates by altering wetting properties, offering insights into stable interconnects for advanced electronic applications.
Leveraging ligand conjugation to improve luminescence thermometry in Dy-single-molecule magnets
Authors: Shome Shraoshee , Maurya Naresh Chandra , Mukherjee Moubani , Adarsh K. V. , Konar Sanjit
Published: January 2025

Extended ligand conjugation enhances luminescent thermometry in dinuclear Dy-SMMs, improving thermometric properties and enabling rare direct energy transfer from the ligands' singlet state to Dy(iii), as shown by excited-state lifetime.
Dendrite-free Zn anode induced by Sn/NC towards highly efficient Zn-ion batteries
Authors: Wang Mingyue , Ban Shuoshuo , Li Nanzhe , Chen Shengxiang , Ye Mingfu , Zhu Jiannan , Wang Wenhai , Wu Konglin
Published: January 2025

Sn nanoparticles anchored on N-doped carbon have been fabricated by a g-C3N4 assisted strategy, which is advantageous for enabling dendrite-free Zn anodes in Zn-ion batteries.
The synthesis and structural aspects of the perbromo-functionalised thiaboranes closo-SBnBrn (n = 5, 9, 11): the solid-state structure of the octahedral closo-SB5Br5, governed by strong dihalogen contacts
Authors: Keller Willi , Ballmann Joachim , Fanfrlík Jindřich , Hnyk Drahomír
Published: January 2025

The co-pyrolytic treatment of B2Br4 with S2Br2 at 350 °C has yielded closo-SB5Br5 (1), closo-1-SB9Br9 (2) and closo-SB11Br11 (3). The strong Brδ+(σ-hole)⋯Brδ−(ring) attraction is the decisive energy portion in the formation of the crystal of 1.
Electrochemical oxidative dearomatization of electron-deficient phenols using Br+/Br− catalysis
Authors: Matsui Kai , Uyanik Muhammet , Ishihara Kazuaki
Published: January 2025

An electrochemical method for oxidative dearomatization of electron-deficient phenols is reported, using tetrabutylammonium bromide as a catalytic mediator under aqueous biphasic conditions.
Rational design strategies for innovative small-molecule scaffolds inspired by three pivotal protein secondary structures
Authors: Yoo Jeong Yeon , Kim Chanwoo , Kwon Ji Hoon , Cho Hana , Jeong Kiyoung , Park Wonwoo , Kim Younghun , Lee Dongwhan , Park Seung Bum
Published: January 2025

We developed a rational design strategy for small-molecule scaffolds mimicking pivotal secondary structural motifs—α-helix, β-strand, and β-turn—critical for PPI recognition, using a common core skeleton.
Diverse pore ordering in porous silica: synthesis and quantitative structural insights based on combining scattering and imaging techniques
Authors: Das Avik , Mandal Satish K. , Kumar Nitesh , Maity Nayan , Kumar Ashwani , Sinha Swarnshikha , Bahadur Jitendra , Chowdhury Biswajit , Sen Debasis
Published: January 2025

Mesoporous silica, with different pore ordering, has been synthesized. Structural details were quantified by combining the results of small-angle scattering, electron microscopy and gas adsorption techniques.
Isotope effects in Eley–Rideal abstraction of hydrogen from tungsten surfaces: the role of dissipation
Authors: Galparsoro Oihana , Martin-Barrios Raidel , Ibañez-Almaguer Paulo Enrique , Márquez-Mijares Maykel , Cremé José David , Silva-Solis Yosvany , Rubayo-Soneira Jesús , Crespos Cédric , Larregaray Pascal
Published: January 2025

This study examines the role of energy dissipation via electron–hole pair excitations and phonon coupling in the Eley–Rideal recombination of hydrogen isotopes on tungsten surfaces.
Review on solid selective catalytic reduction (SSCR) technology: excellent optimization of selective catalytic reduction technology
Authors: Wei Zhihao , Guan Bin , Zhuang Zhongqi , Chen Junyan , Zhu Lei , Ma Zeren , Hu Xuehan , Zhu Chenyu , Zhao Sikai , Shu Kaiyou , Dang Hongtao , Zhu Tiankui , Huang Zhen
Published: January 2025

Selective catalytic reduction (SCR) technology is one of the main measures to achieve the pollutant emission reduction target of diesel engines. And current NH3-SCR systems use liquid urea as a reducing agent.
A narrow band blue phosphor NaBa4Al2B8O18Cl3:Eu2+ for white light emitting diodes
Authors: Pan Boyu , Wang Yao , Xu Bing , Wang Kangkang , Zhang Liang , He Zhixian , Zhang Shengnan
Published: January 2025

Exploring new photoexcited phosphors has attracted attention for improving the performance of white LEDs.
Synthesis and characterization of heptacoordinated molybdenum(ii) complexes supported with 2,6-bis(pyrazol-3-yl)pyridine (bpp) ligands
Authors: Estival Arno , Blancarte Luis E. , Pinto Loïc , Pointis Romane , Galas Nathan , Sournia-Saquet Alix , Vendier Laure , Santillan Rosa , Farfán Norberto , Sortais Jean-Baptiste , Grellier Mary , Simonneau Antoine
Published: January 2025

Coordination of the redox non-innocent and proto-responsive 2,6-bis(pyrazol-3-yl)pyridine (bpp) ligand to Mo(0) precursors in the presence of silver acetate produces hepta-coordinated Mo(ii) complexes in moderate to good yields.
Exploring structural, magnetic, and catalytic diversity in tetranuclear {Cu4O4} cubane cores and a dinuclear complex derived from closely related ligand systems
Authors: Jana Narayan Ch. , Escuer Albert , Brandão Paula , Panja Anangamohan
Published: January 2025

This study highlights the magnetic and catalytic diversity of three tetranuclear {Cu4O4} cubane complexes and one dinuclear CuII complex, emphasizing distinct coordination environments, magnetic interactions, and catalytic efficiency.
Photodegradation of naphthalene-derived particle oxidation products
Authors: Sari Doré Félix , Carstens Cecilie , Top Jens , Zhang Yanjun , Dubois Clément , Perrier Sébastien , El Haddad Imad , Bell David M. , Riva Matthieu
Published: January 2025

Photodegradation alters secondary organic aerosol (SOA) chemical composition and physical properties, promoting the formation of oxidation products in both gas- and particle-phase by depleting high-molecular-weights species within the SOA.
Environmental Science: Atmospheres five years on
Authors: Donahue Neil M.
Published: January 2025

Editor-in-Chief Neil Donahue reflects on the fourth year of Environmental Science: Atmospheres and looks ahead at the plans for year 5.
Research on spectroscopy screening methods based on optical computation using laser-induced breakdown spectroscopy
Authors: Lin Xiaomei , Zhen Xin , Dai Panyang , Yang Jiangfei , Huang Yutao , Che Changjin , Lin Jingjun
Published: January 2025

The proposed computational screening method effectively reduces the impact caused by spectral interference and overlap issues during the analysis of manganese ore. This improvement enhances the accuracy of quantitative analysis.
A simple three-dimensional microfluidic platform for studying chemotaxis and cell sorting
Authors: Li Xiaobo , Song Yanqing , Glidle Andrew , Smith Cindy , Sloan William , Cusack Maggie , Yin Huabing
Published: January 2025

A 3D microfluidic platform for single-cell chemotaxis studies and active cell sorting based on chemotactic phenotypes across diverse applications.
Formation of all-biopolymer-based composites with cellulose as the main component
Authors: Wittmar Alexandra S. M. , Prymak Oleg , Homm Thomas , Surholt Felix , Uhlemann Jörg , Stranghöner Natalie , Ulbricht Mathias
Published: January 2025

The composition of the impregnation solution and the chemical composition of fibers strongly affect the formation of the all-biopolymer-based composites and their structural and mechanical properties.
Fabrication of active and intelligent bio-based edible films using encapsulated beetroot powders for smart packaging
Authors: Tshamisane Mkhari , Adeyemi Jerry O. , Fawole Olaniyi A.
Published: January 2025

To address food waste and promote sustainable food packaging, pH-sensitive edible films were developed using Opuntia ficus-indica mucilage and cellulose nanofibers incorporated with encapsulated beetroot waste extract at 0.5%, 1%, 1.5%, and 2% concentrations.
Nanostructured liquid-crystalline ion conductors based on linear carbonate moieties: effects of oligooxyethylene and alkylene spacers on self-assembled properties and ionic conductivities
Authors: Uchida Junya , Takegawa Shingo , Ito Soshi , Sato Shunsuke , Watanabe Go , Kato Takashi
Published: January 2025

Ion-conductive 2D nanostructured liquid crystals containing linear carbonate moieties are developed. The complexes of these materials with lithium salts may have potential as self-assembled electrolytes in lithium-ion batteries.
Mitigating triplet loss in 2D WSe2/non-fullerene heterostructures using halogenated acceptors
Authors: Chandrabose Sreelakshmi , Valencia Ana M. , Raoufi Meysam , Alshehri Nisreen , Clarke Tracey M. , Laquai Frédéric , Cocchi Caterina , Neher Dieter
Published: January 2025

Two-dimensional transition metal dichalcogenides (2D TMDCs) can be combined with organic semiconductors to form hybrid van der Waals heterostructures.
Stretchable wrinkle-structured liquid metal sandwich films enable strain-insensitive electromagnetic shielding and Joule heating
Authors: Ren Yiming , Chen Jiali , Yao Jiaheng , Shang Liqiang , Zheng Wenge , Shen Bin
Published: January 2025

Multifunctional wrinkle-structured LM/Ecoflex sandwich films with excellent stretchability are developed, showing multidirectional strain-insensitive EMI shielding performance and ideal strain-insensitive Joule-heating behavior.
Acetylene semi-hydrogenation catalyzed by Pd single atoms sandwiched in zeolitic imidazolate frameworks via hydrogen activation and spillover
Authors: Li Yan-Ting , Cui Wen-Gang , Huo Ying-Fei , Zhou Lei , Wang Xinqiang , Gao Fan , Zhang Qiang , Li Wei , Hu Tong-Liang
Published: January 2025

Pd single atoms were anchored by zeolitic imidazolate framework to form a Z@Pd@Z sandwich catalyst, over which efficient acetylene semi-hydrogenation could be realized by hydrogen activation and spillover.
In situ oxygen vacancy formation at the metal/TiO2 interface during ammonia borane hydrolysis: a study of CuCo nanoparticles supported on various colored TiO2 samples
Authors: Patra Dinabandhu , Garg Reeya , Singh Ankita , Gautam Ujjal K. , Ganesan Ramakrishnan , Gopalan Balaji
Published: January 2025

The rate of ammonia borane hydrolysis is higher for metal-supported white TiO2 than for colored TiO2 as the support. A lower metal loading on the white TiO2 support system exhibited better catalytic efficacy.
N-Alkylation of aniline derivatives by a bipyridyl metal–organic framework supported cobalt catalyst
Authors: Kalita Rahul , Monga Yukti , Manna Kuntal
Published: January 2025

A porous and recyclable metal–organic framework-confined bipyridyl-Co(ii) chloride catalyst enables direct N-alkylation of anilines to the corresponding amines in high yield and produces H2O as the by-product.
Determination of the carrier temperature in weakly confined semiconductor nanocrystals using time-resolved optical spectroscopy
Authors: Tanghe Ivo , Lin Chao-Yang , Wagner Isabella , Samoli Margarita , Ataberk Cayan Servet , Hens Zeger , Hodgkiss Justin , Chen Kai , Geiregat Pieter
Published: January 2025

Using ultrafast PL is more suitable than TA for determining carrier temperatures of colloidal nanocrystals.
Reductive amination of triglycerides to fatty amines over a titanium oxide-supported Pt–Mo catalyst
Authors: Sakoda Katsumasa , Furugaki Harumi , Yamaguchi Sho , Mitsudome Takato , Mizugaki Tomoo
Published: January 2025

Reductive amination of triglycerides under mild conditions was achieved using a titanium oxide-supported Pt–Mo catalyst. Various triglycerides including cooking oil are transformed into their corresponding fatty amines.
In situ oxygen generation by a low-toxicity ruthenium electrocatalyst for multimodal radiotherapy sensitization
Authors: Chen Mingkai , He Hanlong , Dong Jinrong , Xie Peng , Chen Jingyan , Ma Li , Chen Tianfeng
Published: January 2025

Tumor hypoxia limits the efficacy of radiotherapy. Therefore, we used a low-toxicity catalyst with high Z-atoms to improve the efficacy of radiotherapy by generating oxygen through in situ electrocatalysis of tumour.
Response and variation mechanisms of RDX crystals under strong magnetic loading
Authors: Tao Jun , Ren Haichao , Bu Yufan
Published: January 2025

To fully understand the variation in performance of cyclotrimethylenetrinitramine (RDX) crystals under strong magnetic field exposure, the strong magnetic loading of RDX was conducted in both stable and alternating magnetic fields.
Copper catalyzed selective methane oxidation to acetic acid using O2
Authors: Gupta Poorvi , Rana Bharti , Maurya Rishabh , Kalita Rahul , Chauhan Manav , Manna Kuntal
Published: January 2025

A porous aluminium metal–organic framework confined mono-copper(ii) hydroxyl species serves as an efficient catalyst for the direct conversion of methane into acetic acid using O2 as the oxidant in water with excellent productivity and selectivity.
Electrostatically tuning radical addition and atom abstraction reactions with distonic radical ions
Authors: Shiels Oisin J. , Brydon Samuel C. , Poad Berwyck L. J. , Marshall David L. , Houston Sevan D. , Xing Hui , Bernhardt Paul V. , Savage G. Paul , Williams Craig M. , Harman David G. , Kirk Benjamin B. , da Silva Gabriel , Blanksby Stephen J. , Trevitt Adam J.
Published: January 2025

Charged functional groups can control gas-phase radical reactions in a predictable and tuneable manner by creating an internal oriented electric field that modulates the rate-limiting transition state.
Formation of mono- and dual-labelled antibody fragment conjugates via reversible site-selective disulfide modification and proximity induced lysine reactivity
Authors: Thanasi Ioanna A. , Bouloc Nathalie , McMahon Clíona , Wang Ning , Szijj Peter A. , Butcher Tobias , Rochet Léa N. C. , Love Elizabeth A. , Merritt Andy , Baker James R. , Chudasama Vijay
Published: January 2025

Exploiting quantitative and reversible site-selective disulfide modification as a means for selective lysine functionalisation on clinically relevant antibody fragments.
Catalytic cracking and deoxygenation of cottonseed oil to yield light olefins over lanthanum-impregnated zeolite catalysts
Authors: Dhanuskar Sagar , Naik Satya Narayan , Pant Kamal Kishore
Published: January 2025

This work investigated the production of renewable hydrocarbons from cottonseed oil using catalytic cracking.
The shape of cleaved tethered membranes
Authors: Chen A. D. , Gandikota M. C. , Cacciuto A.
Published: January 2025

Applying longitudinal cuts to the surface of a self-avoiding tethered membrane destabilizes its flat phase and leads to the formation of novel phases fully controlled by the balance between number of cuts and the edge width.
Analysis of the internal motions of thermoresponsive polymers and single chain nanoparticles
Authors: Hore Michael J. A.
Published: January 2025

Proper orthogonal decomposition (POD) and uniform manifold approximation & projection (UMAP) are used to study the relaxation dynamics of thermoresponsive polymers and single-chain nanoparticles with energy-conserving DPD simulations.
Using optical tweezer electrophoresis to investigate clay nanoplatelet adsorption on Latex microspheres in aqueous media
Authors: Parmar Vaibhav Raj Singh , Chanda Sayantan , Sivasubramaniam Sri Vishnu Bharat , Bandyopadhyay Ranjini
Published: January 2025

The adsorption kinetics of clay nanoplatelets on an optically trapped microsphere is driven by non-electrostatic dispersion and electrostatic interactions.
Selective dissolution and re-precipitation by pH cycling enables recovery of manganese from surface nodules
Authors: Butreddy Pravalika , Mergelsberg Sebastian T. , Jocz Jennifer N. , Li Dongsheng , Prabhakaran Venkateshkumar , Ritchhart Andrew J. , Subban Chinmayee V. , Kellar Jon , Beeler Scott R. , Keenan Sarah W. , Nakouzi Elias
Published: January 2025

Pure manganese product is recovered from carbonaceous polymetallic nodules via pH cycling.
ZnO/Co3O4 supported on carbon nanotubes as anode materials for high-performance lithium-ion batteries
Authors: Qiu Songli , Wu Jiafeng , Chen Liyu , Li Yingwei
Published: January 2025

ZnO and Co3O4 wrapped in carbon nanotubes were synthesized via one-pot pyrolysis of MOF, offering excellent lithium storage, high conductivity, and superior stability as electrode materials for lithium-ion batteries.
Alleviation of concentration polarization using density-controlled duplex electrode architecture to improve quick-charging performance of lithium-ion batteries
Authors: Kim Hyun-seung , Kim Tae Hyeon , Leem Han Jun , Kim Chaejeong , Ma Dong Hyeok , Yu Mi , Lee Jong Won , Kim Hansu , Jeong Goojin
Published: January 2025

The presented work focuses on alleviating the concentration polarization of the negative electrode through density-controlled duplex electrode architecture introduction, which improves the fast-charging performance of lithium-ion batteries.
Construction of the sp-C–O–V interface for selective conversion of methane to methyl hydroperoxide under mild conditions
Authors: Bu Fanle , Yan Jiayu , Xue Yurui
Published: January 2025

Two-dimensional V2O5/graphdiyne nanosheets with electron-rich sp-C–O–V interfaces significantly enhance the activity and selectivity for methane oxidation to produce CH3OOH.
Emerging chalcogenide based van der Waals heterostructures for ultrathin excitonic solar cells with enhanced photo-conversion efficiency
Authors: Prasanna Ponnappa Kechanda , Chakraborty Sudip
Published: January 2025

The heterostructures formed by both 1T and 2H combinations of ZrSe2 and HfSe2 have been theoretically demonstrated using density functional theory calculations.
Flexible deformation and special interface structure in nanoparticle-stabilized Pickering bubbles strengthen the immunological response as adjuvant
Authors: Chen Qiuting , Teng Jie , Zhu Cuixiao , Du Jinzhi , Wang Guixiang , Wu Jie
Published: January 2025

Nanoparticle-stabilized Pickering bubbles (PPBs) with flexible gas cores were investigated as vaccine adjuvants which possess excellent ability to cross-present antigens and trigger cellular immune effects.
Correction: Hedgehog-inspired immunomagnetic beads for high-efficient capture and release of exosomes
Authors: Cheng Jia , Zhu Nanhang , Zhang Yujia , Yu Yue , Kang Ke , Yi Qiangying , Wu Yao
Published: January 2025

Correction for ‘Hedgehog-inspired immunomagnetic beads for high-efficient capture and release of exosomes' by Jia Cheng et al., J. Mater. Chem. B, 2022, 10, 4059–4069, https://doi.org/10.1039/D2TB00226D.
How far can a minority charge carrier of an organic semiconductor walk? An in situ observation by scanning photocurrent microscopy
Authors: Sun Di , Hou Xuehua , Cao Yonglin , Chai Hui , Xie Zengqi , Liu Linlin
Published: January 2025

This work focus on the direct observation of intrinsic minority charge carrier diffusion length of organic semiconductors, which is experimentally on the order of micrometers and corresponds to their good performance in thick films.
Confirmation of the planetary nebula nature of HaTr 5
Authors: Guerrero M. A. , Santamaría E. , Liberato G. , Parker Q. A. , Gonçalves D. R. , Rodríguez-González J. B. , Ritter A. , Yuan H. , Toalá J. A.
Published: January 2025

Context. The identification of the nebula HaTr 5 with the shell remnant of the historic Nova Sco 1437 around the low-accretion rate cataclysmic variable 2MASS J17022815-4306123 has been used in the framework of the hibernation scenario to set an upper limit of ≤580 yr on the transition time from a nova-like binary to a dwarf nova.

Aims. This work is aimed at clarifying the nature of HaTr 5, which has also been deemed a possible planetary nebula in previous works.

Methods. We obtained intermediate- and high-dispersion long-slit spectra of HaTr 5 and analyzed them in conjunction with archival optical and infrared images to investigate its spectral properties using photoionization models. In addition, we sought to derive its Hα flux and ionized mass and determine its spatio-kinematic by means of 3D models to clarify its true nature.

Results. The Hα flux of HaTr 5 implies an ionized mass of 0.059 M⊙ at the 0.99 kpc distance of 2MASS J17022815-4306123, namely, ∼1000 times the typical ejecta of a nova. If HaTr 5 were actually an unrelated planetary nebula, its Hα flux would imply a distance of 2.25 kpc and an ionized mass of 0.47 M⊙. The expansion velocity of HaTr 5 is found to be ≃27 km s−1, with a heliocentric radial velocity of −1 km s−1.

Conclusions. The ionized mass of HaTr 5 and its expansion velocity (and associated kinematic age) are clearly inconsistent with those expected for a nova remnant, all strongly support a planetary nebula nature. The association of 2MASS J17022815-4306123 with HaTr 5 is further called into question based on their differing radial velocities and almost orthogonal motions on the plane of the sky. We have concluded that HaTr 5 is an old, evolved planetary nebula unrelated to the remnant of Nova Sco 1437 or to the cataclysmic variable 2MASS J17022815-4306123, with the latter being by chance projected onto HaTr 5.
Contemporary Cementless Patellar Implant Survivorship: A Systematic Review and Meta-Analysis of 3,005 Patellae
Authors: Elmenawi Khaled A. , Gonzalez-Bravo Adrian E. , Prokop Larry J. , Hannon Charles P. , Abdel Matthew P. , Bedard Nicholas A.
Published: January 2025

Historically, cementless patellar implants were fraught with issues of fixation and polyethylene wear. However, contemporary cementless patellar implants incorporate modern technologies for implant design and offer the potential for improved biological fixation and longevity. As such, an evaluation of the performance of modern cementless patellae is needed. The purpose of this study was to perform a systematic review and meta-analysis of contemporary cementless patellar implants used during primary total knee arthroplasty (TKA), with a particular focus on aseptic loosening of the patellar component.

A systematic review of the literature was performed from January 2000 to February 22, 2024. We included all peer-reviewed studies that reported the number of revisions in patients who had cementless patellae placed in 2000 or later during primary TKA. Reviews and case reports were excluded. Out of 639 studies, 13 were included with a total of 3,005 cementless patellae analyzed. The mean patient age was 64 years and the mean body mass index (BMI) was 31 kg/m2. Meta-analyses were performed to calculate the pooled revision rate per person-year of revision for aseptic loosening of the patellar component and revision for any patellar failure.

Upon analysis of 13 studies involving a total of 3,005 cementless patellae, the revision rate for aseptic loosening of the patella was 0.2 per 1,000 person-years and the revision rate for any patellar failure was 1 per 1,000 person-years.

Contemporary cementless patellar implants showed an overall revision rate of 1 per 1,000 person-years, demonstrating excellent longevity. The high survivorship, together with a low rate of loosening, show the utility and effectiveness of these implants. Given the nature of biologic fixation, these results are promising for long-term implant stability but additional follow-up is warranted.
One-dimensional superfluidity in Bose crystals
Authors: Shevchenko S. I.
Published: January 2025

The possibility of delocalization of particles in a quantum crystal at the nucleus of a dislocation and the transition of delocalized particles into a superfluid state are predicted. A theory is constructed for the one-dimensional superfluidity of a slightly nonideal Bose gas. The effect of impurities on the superfluid density is studied and it is shown that impurities do not destroy the superfluidity, but rather make an additional contribution to the normal component, different from zero even at T = 0. The flow of the superfluid current through a weak link is studied. It is established that in spite of the fact that there is no long-range order in the one-dimensional case, a superfluid current will flow through a weak link without dissipation. Some experimental manifestations of dislocation superfluidity are discussed.
Low-temperature heat capacity of the ordering alloy FePd2Au
Authors: Kourov N. I. , Alekseeva M. A. , Vereshchagin Yu. A.
Published: January 2025

The heat capacity Cp of the alloy FePd2Au in states with different degrees of atomic order is studied in the temperature range 3 < T < 20 K. A temperature-independent “cluster” contribution α to Cp was observed, which agrees well with previous conclusions regarding the nonuniformity of the magnetic structure of the alloy. The linear contribution to the heat capacity is attributed to the thermal excitation of electrons at the Fermi level.
Characteristics of long-wavelength IR absorption in α-oxygen
Authors: Fugol' I. Ya. , Khashchina L. V. , Pritula I. M.
Published: January 2025

The spectra of lattice excitations of the low-temperature antiferromagnetic phase of oxygen are studied by the method of long-wavelength IR spectroscopy. The determining role of the mutual effect of the vibrational and spin subsystems in the formation of the long-wavelength absorption in α -oxygen is observed for the first time experimentally.
Low-frequency lattice vibrations in α-CO and in N2−CO solid solutions
Authors: Fugol’ I. Ya. , Khashchina L. V. , Pritula I. M.
Published: January 2025

The long-wavelength IR absorption spectra of an α-CO cryocrystal and N2−CO solid solutions are studied. The one- and two-mode character of the translational oscillations is discussed in terms of the corresponding phonon density of states.
Theory of weakly bound states of quasiparticles
Authors: Bar’yakhtar I. V.
Published: January 2025

The dependence of the binding energy of two quasiparticles on the total momentum is determined for quasiparticles with the dispersion law ϵ = ϵ0[1 + γ (ak)n] and interacting via an arbitrarily weak interaction. The asymptotics of the wave function of two quasiparticles in a bound state is determined in the one-, two-, and three-dimensional cases.
Effect of an acoustic wave on the surface impedance of a conductor
Authors: Kopasov A. P.
Published: January 2025

A solution is obtained for the problem of reflection of an electromagnetic wave of frequency ω1 from a conductor in which a sound wave of frequency ω2 with displacement vector normal to the surface is excited. The case of specular reflection of electrons by the surface of the conductor and an isotropic dispersion relation is considered. An anomalous skin effect is assumed to occur. The sound wave is shown to change the surface impedance of the conductor. If ω2 ≠ 2 ω1, the correction to the impedance is quadratic in the amplitude of the acoustic wave for low sound intensities. When the frequencies ω1 and ω2 are smaller than, or of the same order as, the collision frequency, and the sound wavelength is of the order of the skin depth at the frequency ω1, the correction ceases to be small in comparison with the linear impedance if the characteristic frequency of electrons trapped by the effective potential field of the acoustic wave becomes greater than the collision frequency.
Negative hopping magnetoresistance in strong electric fields
Authors: Asadullaev N. A. , Brandt N. B. , Vlasenko V. A. , Kozlov S. N. , Chudinov S. M.
Published: January 2025

The nonohmic hopping conduction stimulated in the amorphous dielectric Si3N4 by a strong electric field has been studied in a magnetic field at low temperatures. Negative magnetoresistance has been found to occur in the case of a strong carrier localization.
Orientationally disordered hydrogen. Isotropic model of quadrupolar glass
Authors: Kokshenev V. B. , Litvin A. A.
Published: January 2025

A model is constructed to describe the thermodynamic properties of an ortho–para mixture of solid molecular hydrogen in the region without any long-range orientational order. After the unitary transformation of the original Hamiltonian of a real hydrogen system to the local order axes system of coordinates, a version of the thermodynamic perturbation theory is developed. The model Hamiltonian of hydrogen is presented as a system of two-dimensional pseudospins interacting through isotropic exchange that changes sign on the average and existing in random local-anisotropy type fields that are conjugate to the order parameter of quadrupolar glass and that appear in the fourth order perturbation theory. The effect of these fields on the possible types of ordering of quadrupolar glass is discussed. A method is proposed to reveal random anisotropy-type fields from the experimental data on the thermodynamic properties of a mixture of ortho- and parahydrogen.
Semimetal alloy BiSb in strong magnetic and electric fields
Authors: Bogod Yu. A. , Valeev R. G.
Published: January 2025

The magnetoresistance, Shubnikov–de Haas oscillations and de volt–ampere characteristics of the compensated semimetal alloy Bi96.6Sb3.4 are studied in magnetic fields up to 200 kOe and electric fields up to 230 V/cm for H⊥E. The linear resistance is found to decrease when the magnetic field is directed close to the trigonal axis (∠H, C3 ≤ 1°) and H > 70 kOe. This is explained by rapid increase in the carrier concentration in the ultraquantum limit for the magnetic field. The ratio of the spin splitting of hole and electron energy levels to the orbital splitting is determined for H‖C3, and the dependence of the Fermi energy and carrier concentration on magnetic field is found. It is shown that in a given magnetic field, the inflection appearing in the V–I curve as a result of the phonon generation in the bulk of the sample shifts towards higher magnetic fields as compared to bismuth, while the amplitude of the Shubnikov–de Haas type oscillations of the parameter E*k = cEk/Hs decreases. These results are attributed to a stronger attenuation (as compared to bismuth) of the elastic waves and to an overheating of the electron gas following an increase in the number density of lattice defects.
Relaxation kinetics of nonequilibrium phonons in copper and gold point contacts
Authors: Balkashin O. P. , Yanson I. K. , Pilipenko Yu. A.
Published: January 2025

The response spectra of copper–copper and gold–gold metal point contacts in the ballistic and diffusion regimes are measured in the frequency range from 3 · 103 to 8 · 1010 Hz by different techniques: video detection, recording of the second-harmonic amplitude, and recording of an intermediate frequency in the mixing of two rf radiations. The kinetics of transient phenomena in the contacts is analyzed on the basis of the experimental data. It is shown that the saturation of the frequency dependence of the signal and its smooth dependence on the bias voltage beyond the limits of the phonon spectrum can be attributed to (respectively) the bolometric effect (inertial heating of the contact by external radiation) and the existence of an intermediate thermalization stage of the phonons during their relaxation in interaction with electrons. The relaxation frequency of high-energy phonons is determined and is found to be equal to 5 · 109 for copper and 0.8 · 109 Hz for gold. Nonuniform relaxation is observed, and the elastic mean free path of nonequilibrium phonons is estimated (∼ 1.1 nm). The existence of latent rf anomalies (spectral features) in the point-contact spectra in the diffusion regime is established experimentally.
Features of the thermal expansion of hcp and fcc O2–Ar solutions
Authors: Prokhvatilov A. I. , Brodyanskiĭ A. P. , Baryl’nik A. S.
Published: January 2025

X-ray studies of the lattice parameters, molar volumes and thermal expansion coefficients have been carried out on equilibrium fcc and metastable hcp O2–Ar solutions. Anomalies were found in the thermal expansion at temperatures below 20 K of solutions with 25, 30, and 35% O2, which correlate with the non-monotonic specific heat Cp at these temperatures. It follows from the analysis of the experimental results that in the temperature regions before and after the anomalies, the hcp solution is characterized by appreciably different structural and thermodynamic properties. The contributions of the rotational and magnetic subsystems to the thermodynamic properties of the solutions are estimated and comparison is made between the results of the calculations and the experimental data. The conclusion is drawn that the observed features are, to a considerable extent, due to the increase in the magnetic and orientational order in the impurity oxygen system at low temperatures. Unlike the metastable form, equilibrium fcc solutions containing up to 35% O2 have a monotonic temperature dependence of the thermal expansion coefficient. It can be concluded from the results obtained that the difference in the temperature variation of the properties of fcc and hcp solutions of the same composition is associated with the different nature of the short-range positional order of the oxygen molecules in these two solutions.
An investigation of the rotational motion of 14N2 molecules in a solid Ar matrix by a calorimetric method
Authors: Bagatskiĭ M. I. , Krivchikov A. I. , Manzheliĭ V. G.
Published: January 2025

The specific heat of solid solutions of l4N2 in argon with concentrations n = 0.125, 0.25, 0.50, and 1.02 mole % has been studied in the temperature range 0.5–12° K. It was shown that the characteristic time for conversion of the nitrogen impurity is above 102 hours. Analysis of the temperature dependence of the specific heat showed the limitations of the Devonshire–Manz–Mirsky model and enabled information to be derived about the low-temperature part of the rotational spectrum of an isolated impurity molecule. The concentration dependence of the specific heat of a solution provides evidence in favor of the suggestion of the appreciable role of dynamic interaction between the impurity molecules, brought about through relaxation of the matrix in the surrounding region.
Critical temperature of the transition to a quadrupolar glass state in solid hydrogen
Authors: Koshenev V. B. , Litvin A. A.
Published: January 2025

For the first time the possibility that quadrupolar glass in molecular solid hydrogen may undergo a transition to nonergodic states has been substantiated as an analog of the transition to a spin glass state. The thermodynamic stability with respect to fluctuations in replica pseudospin space is analyzed on the basis of the model Hamiltonian of the orientationally disordered phase of an ortho-para hydrogen mixture. An Almeida–Thouless-type stability condition is formulated within the the framework of the pseudo-Ising model Hamiltonian with random effective exchange interactions and a field of local anisotropy. The values obtained for the critical temperature and concentration enable us to estimate the region of the temperature concentration diagram of the orthocomponent where quadrupolar glass states can exist. This region coincides with the region of anomalous behavior of static and dynamic data from NMR experiments with ortho-para mixtures of solid hydrogen.
Thermodynamic properties of strongly anisotropic superconductor in an applied magnetic field
Authors: Palistrant M. E. , Pédure I. V.
Published: January 2025

The effect of an applied magnetic field H0 on the low-temperature properties of highly anisotropic magnetic systems, in which superconductivity can coexist with spin density waves, is studied. A system of equations is obtained for two order parameters—the superconducting order parameter Δ and the magnetic order parameter M; the difference of the free energies of the superconducting and normal magnetic phases for the system in parallel (H0‖M) and perpendicular (H0⊥M) magnetic fields is determined. Numerical calculations are performed and the phase diagrams are constructed. It is shown that the behavior of the system in a magnetic field depends strongly on the values of the parameters of the theory. It is established that the state of the system for H0⊥M is the energetically most advantageous state.