keyword
https://read.qxmd.com/read/38543113/evaluation-of-antiproliferative-properties-of-comnzn-fe-2-o-4-ferrite-nanoparticles-in-colorectal-cancer-cells
#21
JOURNAL ARTICLE
Venkatesha Narayanaswamy, Bilal Rah, Imaddin A Al-Omari, Alexander S Kamzin, Hafsa Khurshid, Jibran Sualeh Muhammad, Ihab M Obaidat, Bashar Issa
The PEG-coated ferrite nanoparticles Co0.2 Mn0.6 Zn0.2 Fe2 O4 (X1), Co0.4 Mn0.4 Zn0.2 Fe2 O4 (X2), and Co0.6 Mn0.2 Zn0.2 Fe2 O4 (X3) were synthesized by the coprecipitation method. The nanoparticles were characterized by XRD, Raman, VSM, XPS, and TEM. The magnetic hyperthermia efficiency (MH) was determined for PEG-coated nanoparticles using an alternating magnetic field (AMF). X2 nanoparticles displayed the highest saturation magnetization and specific absorption rate (SAR) value of 245.2 W/g for 2 mg/mL in a water medium...
March 1, 2024: Pharmaceuticals
https://read.qxmd.com/read/38542907/enhancement-of-broadband-reverse-saturable-absorption-of-red-black-phosphorus-heterojunction
#22
JOURNAL ARTICLE
Jingjing Wang, Fulai Liu, Yunfei Li, Long Chen, Yong Chen, Hailong Zhang, Zheng Xie
Although laser technology brings convenience to production and daily life, it also causes high-energy damage. Therefore, there is an urgent need to develop optical limiting materials for laser protection. In this study, a novel nonlinear optical material, red/black phosphorus lateral heterojunction, is successfully prepared through solvothermal and ultrasonic treatment. Using the Z-scan method, the nonlinear optical properties of the red/black phosphorus heterojunction are determined at wavelengths of 532 and 1064 nm...
March 13, 2024: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/38542882/hydrated-electron-dynamics-and-stimulated-raman-scattering-in-water-induced-by-ultrashort-laser-pulses
#23
JOURNAL ARTICLE
Jun Tang, Zhongyang Wang
For this study, we employed intense 400 nm, 100 fs pulses linearly propagated through a 50 cm water medium, initially self-stretching the excitation pulses to 2.50 ps. Subsequently, the self-stretched 2.50 ps pulses were focused into deionized water, and we conducted transient absorption experiments to measure and investigate the dynamics of hydrated electrons in water. The excess electrons generated were injected into the hydrogen bond network of the water cluster, leading to the observation of saturated hydrated electrons...
March 11, 2024: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/38542803/nutri-score-of-meat-fish-and-dairy-alternatives-a-comparison-between-the-old-and-new-algorithm
#24
JOURNAL ARTICLE
Sylvie Huybers, Annet J C Roodenburg
Nutri-Score is a front-of-pack label that visualizes the nutritional quality of food products from most healthy (A, dark green) to least healthy (E, red). However, concerns have been raised about discrepancies between Nutri-Score labels and dietary recommendations. Therefore, the Nutri-Score algorithm has recently been adapted. To investigate the effect of the new algorithm, the Nutri-Score of plant-based meat, fish, and dairy alternatives ( n = 916) was calculated with the old and new algorithms. In addition, the nutritional values of meat and milk alternatives with Nutri-Score labels A and B were compared under the old and new conditions and subsequently assessed for alignment with the criteria of Dutch dietary guidelines...
March 19, 2024: Nutrients
https://read.qxmd.com/read/38542712/healthy-lifestyle-and-cancer-risk-modifiable-risk-factors-to-prevent-cancer
#25
REVIEW
Pasquale Marino, Mariangela Mininni, Giovanni Deiana, Graziella Marino, Rosa Divella, Ilaria Bochicchio, Alda Giuliano, Stefania Lapadula, Alessandro Rocco Lettini, Francesca Sanseverino
Cancer has become a serious problem worldwide, as it represents the main cause of death, and its incidence has increased over the years. A potential strategy to counter the growing spread of various forms of cancer is the adoption of prevention strategies, in particular, the use of healthy lifestyles, such as maintaining a healthy weight, following a healthy diet; being physically active; avoiding smoking, alcohol consumption, and sun exposure; and vitamin D supplementation. These modifiable risk factors are associated with this disease, contributing to its development, progression, and severity...
March 11, 2024: Nutrients
https://read.qxmd.com/read/38542706/associations-of-dietary-intake-with-cardiovascular-risk-in-long-term-plant-based-eaters-a-secondary-analysis-of-a-cross-sectional-study
#26
JOURNAL ARTICLE
Boštjan Jakše, Uroš Godnov, Zlatko Fras, Nataša Fidler Mis
A plant-based diet rich in whole foods and fiber is beneficial for cardiovascular (CV) health. This impact is often linked to specific food groups and their preparation methods, reflecting the overall dietary pattern. However, research on the long-term effects of a carefully designed plant-based diet on adults transitioning from a typical Western lifestyle is limited. Notably, studies on people managing CV risk factors effectively are scarce. As part of a cross-sectional study, we examined 151 individuals committed to a long-term, well-designed plant-based diet and active lifestyle...
March 11, 2024: Nutrients
https://read.qxmd.com/read/38542635/design-of-inner-matching-three-stage-high-power-doherty-power-amplifier-based-on-gan-hemt-model
#27
JOURNAL ARTICLE
Renyi Li, Chen Ge, Chenwei Liang, Shichang Zhong
This paper introduces the structure and characteristics of an internal-matching high-power Doherty power amplifier based on GaN HEMT devices with 0.25 μm process platforms from the Nanjing Electronic Devices Institute. Through parameter extraction and load-pull testing of the model transistor, an EE_HEMT model for the 1.2 mm gate-width GaN HEMT device was established. This model serves as the foundation for designing a high-power three-stage Doherty power amplifier. The amplifier achieved a saturated power gain exceeding 9 dB in continuous wave mode, with a saturated power output of 49...
March 13, 2024: Micromachines
https://read.qxmd.com/read/38542615/application-of-amorphous-and-nanocrystalline-soft-magnetic-materials-in-balanced-force-type-electromagnetic-relay
#28
JOURNAL ARTICLE
Ding Ding, Jiaxin You, Xiangqian Cui, Yutong Xue, Xu Tan, Guofu Zhai
The magnetic properties of soft magnetic materials, including their saturation magnetic induction strength and permeability, significantly affect the dynamic characteristics of electromagnetic relays. However, the soft materials most commonly used for relays in the magnetic conductive components of electromagnetic systems, such as electrical pure iron, limit further relay design improvement and optimization to a certain extent. Thus, this paper proposes the use of amorphous and nanocrystalline soft magnetic materials with good high-frequency magnetic properties in magnetic circuits...
March 8, 2024: Micromachines
https://read.qxmd.com/read/38542601/a-load-adaptive-driving-method-for-a-quasi-continuous-wave-laser-diode
#29
JOURNAL ARTICLE
Yajun Wu, Wenqing Liu, Xinhui Sun, Jinxin Chen, Gang Cheng, Xi Chen, Yibin Fu, Pan Liu, Tianshu Zhang
A quasi-continuous-wave (QCW) laser diode (LD) driver is commonly used to drive diode bars and stacks designed specifically for QCW operations in solid-state lasers. Such drivers are optimized to deliver peak current and voltage pulses to LDs while maintaining low average power levels. As a result, they are widely used in laser processing devices and laser instruments. Traditional high-energy QCW LD drivers primarily use capacitors as energy storage components and pulsed constant-current sources with op-amps and power metal-oxide-semiconductor field-effect transistors (MOSFETs) as their core circuits for generating repeated constant-current pulses...
February 29, 2024: Micromachines
https://read.qxmd.com/read/38542492/electrophilic-compounds-in-the-human-diet-and-their-role-in-the-induction-of-the-transcription-factor-nrf2
#30
REVIEW
Celia María Curieses Andrés, José Manuel Pérez de la Lastra, Elena Bustamante Munguira, Celia Andrés Juan, Francisco J Plou, Eduardo Pérez Lebeña
The phrase "Let food be thy medicine…" means that food can be a form of medicine and medicine can be a form of food; in other words, that the diet we eat can have a significant impact on our health and well-being. Today, this phrase is gaining prominence as more and more scientific evidence suggests that one's diet can help prevent and treat disease. A diet rich in fruits, vegetables, whole grains, and lean protein can help reduce the risk of heart disease, cancer, diabetes, and other health problems and, on the other hand, a diet rich in processed foods, added sugars, and saturated fats can increase the risk of the same diseases...
March 20, 2024: International Journal of Molecular Sciences
https://read.qxmd.com/read/38542484/rationally-designed-novel-antimicrobial-peptides-targeting-chitin-synthase-for-combating-soybean-phytophthora-blight
#31
JOURNAL ARTICLE
Yue Ran, Kiran Shehzadi, Jian-Hua Liang, Ming-Jia Yu
Soybean phytophthora blight is a severe menace to global agriculture, causing annual losses surpassing USD 1 billion. Present crop loss mitigation strategies primarily rely on chemical pesticides and disease-resistant breeding, frequently surpassed by the pathogens' quick adaptive evolution. In this urgent scenario, our research delves into innovative antimicrobial peptides characterized by low drug resistance and environmental friendliness. Inhibiting chitin synthase gene activity in Phytophthora sojae impairs vital functions such as growth and sporulation, presenting an effective method to reduce its pathogenic impact...
March 20, 2024: International Journal of Molecular Sciences
https://read.qxmd.com/read/38542390/standard-doses-of-cholecalciferol-reduce-glucose-and-increase-glutamine-in-obesity-related-hypertension-results-of-a-randomized-trial
#32
JOURNAL ARTICLE
Catarina Santos, Rui Carvalho, Ana Mafalda Fonseca, Miguel Castelo Branco, Marco Alves, Ivana Jarak
In arterial hypertension, the dysregulation of several metabolic pathways is closely associated with chronic immune imbalance and inflammation progression. With time, these disturbances lead to the development of progressive disease and end-organ involvement. However, the influence of cholecalciferol on metabolic pathways as a possible mechanism of its immunomodulatory activity in obesity-related hypertension is not known. In a phase 2, randomized, single-center, 24-week trial, we evaluated, as a secondary outcome, the serum metabolome of 36 age- and gender-matched adults with obesity-related hypertension and vitamin D deficiency, before and after supplementation with cholecalciferol therapy along with routine medication...
March 18, 2024: International Journal of Molecular Sciences
https://read.qxmd.com/read/38542213/identification-of-conjugated-dienes-of-fatty-acids-in-vischeria-sp-ippas-c-70-under-oxidative-stress
#33
JOURNAL ARTICLE
Roman A Sidorov, Alexander Y Starikov, Maria A Sinetova, Elizaveta V Guilmisarian, Dmitry A Los
The microalgae Vischeria sp. IPPAS C-70 produces eicosapentaenoic acid. Several stresses cause the formation of fatty acid peaks that resemble hexadecadienoic acids. We used the integrated technique including TLC, HPLC, and GC-MS to search and determine these fatty acids. Double bond positioning in these fatty acids indicated that they were conjugated dienes and allenes. We identified and described natural nine isomers of C16 polyunsaturated fatty acids, including common methylene-interrupted dienes (Δ6,9-16:2, Δ7,10-16:2, Δ9,12-16:2), and unusual conjugated dienes (Δ6,8-, Δ7,9-, Δ8,10-, Δ9,11-, and Δ10,12-16:2), as well as allenic diene (Δ9,10-16:2)...
March 13, 2024: International Journal of Molecular Sciences
https://read.qxmd.com/read/38541767/association-of-malnutrition-with-surgical-and-hospital-outcomes-after-spine-surgery-for-spinal-metastases-a-national-surgical-quality-improvement-program-study-of-1613-patients
#34
JOURNAL ARTICLE
Aladine A Elsamadicy, John Havlik, Benjamin C Reeves, Josiah J Z Sherman, Samuel Craft, Paul Serrato, Sumaiya Sayeed, Andrew B Koo, Syed I Khalid, Sheng-Fu Larry Lo, John H Shin, Ehud Mendel, Daniel M Sciubba
Background: Malnutrition is a common condition that may exacerbate many medical and surgical pathologies. However, few have studied the impact of malnutrition on surgical outcomes for patients undergoing surgery for metastatic disease of the spine. This study aims to evaluate the impact of malnutrition on perioperative complications and healthcare resource utilization following surgical treatment of spinal metastases. Methods: We conducted a retrospective cohort study using the 2011-2019 American College of Surgeons National Surgical Quality Improvement Program database...
March 7, 2024: Journal of Clinical Medicine
https://read.qxmd.com/read/38541597/vaporization-phase-transition-in-cryogenic-liquid-oxygen-sealing-film-on-spiral-groove-faces
#35
JOURNAL ARTICLE
Junjie Chen, Chunhong Ma, Shaoxian Bai, Jing Yang
The property of vaporization phase transition in liquid oxygen face seals is a key factor affecting the stability of mechanical face seals in many fields, especially under cryogenic conditions. Here, a numerical model based on the saturated vapor pressure is established to investigate the vaporization phase transition property of liquid oxygen sealing film. The novelty of this model is to take the influence of heat transfer and face distortions into consideration at the same time. The pressure and temperature distributions as well as face distortions are calculated, and then the property of vaporization phase transition and sealing performance are analyzed...
March 21, 2024: Materials
https://read.qxmd.com/read/38541507/strength-characteristics-ultrasonic-wave-velocity-and-the-correlation-between-them-in-clay-bricks-under-dry-and-saturated-conditions
#36
JOURNAL ARTICLE
Amin Jamshidi, Luís Sousa
One of the methods used to discover the development of deterioration in bricks used as a construction material in a building is the monitoring of the bricks' strength characteristics over time. However, measuring the strength characteristics of bricks used in a building requires sampling for performing laboratory tests, which is not possible in some cases. As an alternative, ultrasonic wave velocity can be a useful, nondestructive tool for the indirect assessment of the strength characteristics of the bricks...
March 15, 2024: Materials
https://read.qxmd.com/read/38541470/preparation-and-performance-of-micro-arc-oxidation-coatings-for-corrosion-protection-of-lafe-11-6-si-1-4-alloy
#37
JOURNAL ARTICLE
Ruzhao Chen, Bin Fu, Jie Han, Hu Zhang, Ping Wang, Hongxia Yin
The microstructure, corrosion resistance, and phase-transition process of micro-arc oxidation (MAO) coatings prepared on LaFe11.6 Si1.4 alloy surfaces in different electrolyte systems were systematically investigated. Research has demonstrated that various electrolyte systems do not alter the main components of the coatings. However, the synergistic action of Na2 CO3 and Na2 B4 O7 more effectively modulated the ionization and chemical reactions of the MAO process and accelerated the formation of α -Al2 O3 ...
March 13, 2024: Materials
https://read.qxmd.com/read/38541465/effect-of-nitrogen-on-growth-and-optical-properties-of-single-crystal-diamond-synthesized-by-chemical-vapor-deposition
#38
JOURNAL ARTICLE
Ying Ren, Wei Lv, Xiaogang Li, Haoyong Dong, Nicolas Wöhrl, Xun Yang, Zhengxin Li, Tao Wang
Concurrently achieving high growth rate and high quality in single-crystal diamonds (SCDs) is significantly challenging. The growth rate of SCDs synthesized by microwave plasma chemical vapor deposition (MPCVD) was enhanced by introducing N2 into the typical CH4 -H2 gas mixtures. The impact of nitrogen vacancy (NV) center concentration on growth rate, surface morphology, and lattice binding structure was investigated. The SCDs were characterized through Raman spectroscopy, photoluminescence (PL) spectroscopy, and X-ray photoelectron spectroscopy...
March 12, 2024: Materials
https://read.qxmd.com/read/38541428/research-on-the-magnetic-properties-of-high-saturation-magnetically-induced-alloy-motors-under-magnetocaloric-coupling
#39
JOURNAL ARTICLE
Jun Li, Zhiye Li, Yulin Li, Jiahao Ge, Yuxiao Li, Lubin Zeng, Ruilin Pei
In the face of the rapid development of the motor industry, some motors with traditional soft magnetic materials can no longer meet the needs of the market. Using new high-saturation magnetic density materials has become a new breakthrough to improve the torque density of motors. Fe-Co alloys (1J22) have high-saturation magnetic induction strength, which can effectively improve the motor's magnetic field strength and increase its torque density. At the same time, the temperature rise of the motor is also an important factor to consider in the motor design process...
March 9, 2024: Materials
https://read.qxmd.com/read/38541384/a-study-of-hyaluronic-acid-s-theoretical-reactivity-and-of-magnetic-nanoparticles-capped-with-hyaluronic-acid
#40
JOURNAL ARTICLE
Mihaela Răcuciu, Simona Oancea, Lucian Barbu-Tudoran, Olga Drăghici, Anda Agavriloaei, Dorina Creangă
Hyaluronic acid (HA) has attracted much attention in tumor-targeted drug delivery due to its ability to specifically bind to the CD44 cellular receptor, which is widely expressed on cancer cells. We present HA-capped magnetic nanoparticles (HA-MNPs) obtained via the co-precipitation method, followed by the electrostatic adsorption of HA onto the nanoparticles' surfaces. A theoretical study carried out with the PM3 method evidenced a dipole moment of 3.34 D and negatively charged atom groups able to participate in interactions with nanoparticle surface cations and surrounding water molecules...
March 7, 2024: Materials
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