Generation of fluorescent and bioluminescent induced pluripotent stem cells with their application in tracking organoid development.

Islet organoids hold significant promise as a renewable source of insulin-producing cells for diabetes therapy; however, an efficient system for real-time tracking and dynamic capture of the developmental processes of islet organoids remains underdeveloped. Here, we report the generation of induced pluripotent stem cells (iPSCs) stably expressing enhanced green fluorescent protein (EGFP) and luciferase (Luc) via rational plasmid construction and lentiviral transduction. Using fluorescence and bioluminescence imaging, we systematically monitored the differentiation of these EGFP/Luc-iPSCs into islet organoids, demonstrating that the reporter iPSCs maintained pluripotency, stable fluorescent/bioluminescent signals, and uncompromised differentiation potential across multiple passages.

Coupling mechanisms of community assembly and pollutant removal in algal-bacterial granular sludge systems.

This study comparatively assessed algal-bacterial granular sludge (ABGS) decontamination performance and microbial community mechanisms under two cultivation modes: flocculated sludge transformed into ABGS (AS_ABGS) and aerobic granular sludge transformed into ABGS (AGS_ABGS). The results indicated that, AS_ABGS achieved superior pollutant removal (COD: 92.2 %, TN: 82.

Immobilization of lipase for two-step hydrolysis to enrich n-3 polyunsaturated fatty acids in glyceride form.

N-3 Polyunsaturated fatty acids (PUFAs) in acylglycerol form offer physiological functions and high bioavailability, attracting industrial interest. This study evaluated six carriers for immobilizing free Candida cylindraceav lipase AY "Amano" 400SD and Candida antarctica lipase A (CAL-A) to prepare n-3 PUFA-rich acylglycerols via a two-step enzymatic hydrolysis. Macroporous resin NKA-9 showed optimal immobilization performance, with the adsorption protein loading of 129.

Molecular mechanisms and intervention approaches of heart failure (Review).

Heart failure is a major health issue that threatens life and health. Previous studies have shown that heart failure is the terminal stage of arrhythmia, dilated cardiomyopathy, hypertension, hypertrophic cardiomyopathy and myocardial infarction. The pathological mechanisms through which cardiovascular diseases result in heart failure include myocardial fibrosis and hypertrophy, myocardial cell death, mitochondrial dysfunction, vascular remodeling and calcium dysregulation.

Construction of immobilized functional microflora system and research on mechanism of enhanced degradation of aromatic compounds in coal chemical wastewater.

Aiming to address the practical challenges of aromatic compound degradation in the biochemical treatment system of coal chemical wastewater (CCW), this study constructed an immobilized functional microflora system using modified zeolite as a bacterial carrier. The study evaluated the system's continuous efficacy in degrading aromatic compounds and explored the underlying mechanisms of the immobilized microflora system in enhancing degradation. The findings demonstrated that zeolite material modified by calcination at 300 °C exhibited the highest immobilization capacity for the microflora, achieving a microorganism immobilization amount of 0.

Construction of vascularized liver microtissues recapitulates angiocrine-mediated hepatocytes maturation and enhances therapeutic efficacy for acute liver failure.

Liver failure poses a significant challenge for millions of patients. The use of primary human hepatocytes and the engineering of liver organoids or liver tissue provide promising solutions to mitigate the shortage of donor organs. However, insufficient vascularization and functional immaturity remain major barriers impeding optimal functional recovery after transplantation.

Supercapacitor Performance of Activated Carbon from Oliver Wood Optimized by the Activation Method.

Amid the growing demand for sustainable energy storage, biomass-derived porous carbons have emerged as eco-friendly alternatives to conventional electrode materials. This study shows that activated carbon prepared by one-step activation exhibits an enhanced specific surface area and pore volume. The optimum parameter for ameliorating the structural and electrochemical properties is 60 min of microwave heating.

High-throughput community and metagenomic elucidate systematic performance variation and functional transition mechanisms during morphological evolution of aerobic sludge.

In this study, high-throughput sequencing and metagenomics were used to investigate the microbial succession and functional gene dynamics during aerobic sludge granulation from activated sludge (AS) to aerobic granular sludge (AGS) to algal-bacterial granular sludge (ABGS). It was found that the settleability and pollutant removal efficiency of the sludge system increased with the sludge morphology evolution. Extracellular polymeric substances (EPS) analysis showed a rise in protein from 2.

Electrochromic platform for the visual detection of the neuroblastoma biomarkers vanillylmandelic acid and homovanillic acid.

Vanillylmandelic acid (VMA) and homovanillic acid (HVA) are biomarkers for the diagnosis and course-of-disease monitoring of malignant tumor neuroblastomas, which endanger infants and children. Herein, we demonstrated a proof-of-concept visual detection of VMA and HVA on an electrochromic basis, in which the viologen 1,1'-dibenzyl-4,4'-bipyridinium dichloride was used as a coloration chromophore. It was found that VMA and HVA can be used as effective electron mediators to improve the electrochromic performance of devices.

The Influence of Pelvic Bone Dose-volume Parameters on Bone Marrow Suppression During Radiation Therapy in Patients With Stage I to III Rectal Cancer Based on Real-world Data.

Purpose: The aim of this study was to evaluate the effect of pelvic bone dose-volume parameters on bone marrow suppression during radiation therapy (RT) in patients with rectal cancer stage I to III disease receiving either neoadjuvant radiation therapy (neo-RT) or curative-intent radiation therapy (cur-RT).

Methods And Materials: This was a retrospective study with data mined from an electronic medical record review at a single institution. Between January 2016 and September 2022, patients with rectal cancer who consecutively received neo-RT or cur-RT in our department were included.

Intelligent optimal control model of selection pressure for rapid culture of aerobic granular sludge based on machine learning and simulated annealing algorithm.

Aerobic Granular Sludge (AGS) has advantages over Activated sludge (AS) but faces challenges with long granulation periods. In this study, a novel grey-box model is devised to optimize the cultivation of AGS to shorten the formation time. This model is based on an existing white-box model.

Research on a harmless treatment method for oily sludge in coal chemical wastewater and the pollutant transformation mechanism of oily sludge during the treatment process.

This study developed an ultrasound synergistic subcritical hydrothermal treatment method (U-SHT) to address the challenges posed by the high oil and water content, complex composition, and hazardous nature of oily sludge (OS) generated during the pretreatment of coal chemical wastewater. The study investigated the efficiency of this method for the harmless disposal and resource recovery of OS, and the migration-transformation mechanism of hazardous organic pollutants in OS. The findings revealed that U-SHT achieved a removal efficiency of chemical oxygen demand in OS of 91.

Efficient Light-Based Bioprinting via Rutin Nanoparticle Photoinhibitor for Advanced Biomedical Applications.

Digital light processing (DLP) bioprinting, known for its high resolution and speed, enables the precise spatial arrangement of biomaterials and has become integral to advancing tissue engineering and regenerative medicine. Nevertheless, inherent light scattering presents significant challenges to the fidelity of the manufactured structures. Herein, we introduce a photoinhibition strategy based on Rutin nanoparticles (Rnps), attenuating the scattering effect through concurrent photoabsorption and free radical reaction.

Supragel-mediated efficient generation of pancreatic progenitor clusters and functional glucose-responsive islet-like clusters.

Although several synthetic hydrogels with defined stiffness have been developed to facilitate the proliferation and maintenance of human pluripotent stem cells (hPSCs), the influence of biochemical cues in lineage-specific differentiation and functional cluster formation has been rarely reported. Here, we present the application of Supragel, a supramolecular hydrogel formed by synthesized biotinylated peptides, for islet-like cluster differentiation. We observed that Supragel, with a peptide concentration of 5 mg/mL promoted spontaneous hPSCs formation into uniform clusters, which is mainly attributable to a supporting stiffness of ∼1.

Optimizing carbon sources regulation in the biochemical treatment systems for coal chemical wastewater: Aromatic compounds biodegradation and microbial response strategies.

The complex composition of coal chemical wastewater (CCW), marked by numerous highly toxic aromatic compounds, induces the destabilization of the biochemical treatment system, leading to suboptimal treatment efficacy. In this study, a biochemical treatment system was established to efficiently degrade aromatic compounds by quantitatively regulating the dosage of co-metabolized substrates (specifically, the chemical oxygen demand (COD) : COD = 3:1, 1:3, and 1:1). The findings demonstrated that the system achieved optimal performance under the condition that the ratio of COD to COD was 3:1.

Advances in molecularly imprinted materials for selective adsorption of phenolic pollutants from the water environment: Synthesis, applications, and improvement.

The application of molecularly imprinted material (MIM) is widely employed as a material for removing phenolic pollutants from the water environment, owing to its exceptional capacity for selective adsorption and high sensitivity. In this paper, the preparation principle, bonding types, and preparation methods of MIM have been comprehensively introduced. Meanwhile, according to the binding type of MIM with phenolic pollutants, three categories of hydroxyl bonding, hydroxyl carboxyl bonding, and hydroxyl nitro bonding were carried out to explain its application to phenolic pollutants.

Generation of human vascularized and chambered cardiac organoids for cardiac disease modelling and drug evaluation.

Human induced pluripotent stem cell (hiPSC)-derived cardiac organoids (COs) have shown great potential in modelling human heart development and cardiovascular diseases, a leading cause of global death. However, several limitations such as low reproducibility, limited vascularization and difficulty in formation of cardiac chamber were yet to be overcome. We established a new method for robust generation of COs, via combination of methodologies of hiPSC-derived vascular spheres and directly differentiated cardiomyocytes from hiPSCs, and investigated the potential application of human COs in cardiac injury modelling and drug evaluation.

Distribution characteristics, source analysis and risk assessment of polycyclic aromatic hydrocarbons in sediments of Kuye River: a river in a typical energy and chemical industry zone.

This study systematically analyzed the distribution characteristics, sources, and ecological risk of polycyclic aromatic hydrocarbons (PAHs) in Kuye River sediments, located in an energy and chemical industry base in northern Shaanxi, China. The results that revealed the concentrations of 16 PAHs in the sediment ranged from 1090.04 to 32,175.

Catalytic Ozonation of Air toward Direct Nitric Acid Production Using Hierarchical CoO with a Tunable Microstructure.

The nitrogen oxidation reaction (NOR) to form nitric acid by applying natural air and HO under ambient conditions is a sustainable approach to achieving efficient and selective N fixation for industrial applications. In this study, four kinds of CoO catalysts with a controllable microstructure were prepared to catalyze the direct NOR of N in the air. At the same time, the reaction mechanism of the conversion of N to nitric acid under catalytic ozonation was explored through experimental research and density functional theory (DFT) calculation.

Construction of aldehyde-based, ester-based hyper-cross-linked polar resin and its selective adsorption mechanism for phenol in coal chemical wastewater.

Efficient and precise recovery of phenol from coal chemical wastewater (CCW) poses a significant challenge, prompting the development of a novel aldehyde-based, ester-based hyper-cross-linked polar resin (DES-COOC-CHO) in this study. Two distinct functional group modification methods were employed to enhance the screening effect of the resin. SEM, FT-IR, NMR, XPS, and BET characterizations confirmed the successful construction of the hyper-cross-linked polar resin, incorporation aldehyde and ester groups, exhibiting a special surface area of 627.

Study on material structure design, selective adsorption mechanism, and application for adsorption recovery of oil substances in coal chemical wastewater.

In response to the problem of high emulsified and dissolved oils being difficult to recovery from coal chemical wastewater (CCW), this study specifically constructed a non-polar, macropore, and hydrophobic adsorption material (pSt-X) based on the main components of these two oils (aromatics and phenols) for selective recovery. The results revealed that pSt-X had an adsorption capacity of 215.52 mg/g, which had remained stable for multiple recycling sessions, with an adsorption capacity constantly above 95 %.

FNIP1 abrogation promotes functional revascularization of ischemic skeletal muscle by driving macrophage recruitment.

Ischaemia of the heart and limbs attributable to compromised blood supply is a major cause of mortality and morbidity. The mechanisms of functional angiogenesis remain poorly understood, however. Here we show that FNIP1 plays a critical role in controlling skeletal muscle functional angiogenesis, a process pivotal for muscle revascularization during ischemia.

Micro-nanofiber composite biomimetic conduits promote long-gap peripheral nerve regeneration in canine models.

Peripheral nerve injuries may result in severe long-gap interruptions that are challenging to repair. Autografting is the gold standard surgical approach for repairing long-gap nerve injuries but can result in prominent donor-site complications. Instead, imitating the native neural microarchitecture using synthetic conduits is expected to offer an alternative strategy for improving nerve regeneration.

The role of MRI after neochemoradiotherapy in predicting pathological tumor regression grade and clinical outcome in patients with locally advanced rectal adenocarcinoma.

Objective: To evaluate the predictive value of tumor regression grade assessed by MRI (mr-TRG) after neoadjuvant chemoradiotherapy (neo-CRT) for postoperative pathological TRG (pTRG) and prognosis in patients with locally advanced rectal adenocarcinoma (LARC).

Materials And Methods: This was a retrospective study from a single center experience. The patients who were diagnosed with LARC and received neo-CRT in our department between January 2016 and July 2021 were enrolled.

Lipase-catalyzed two-step hydrolysis for concentration of acylglycerols rich in ω-3 polyunsaturated fatty acids.

In this study, enzymatic two-step hydrolysis of tuna oil was performed to release saturated (SFAs) and monounsaturated fatty acids (MUFAs) from triacylglycerols (TAGs) to obtain acylglycerols rich in ω-3 polyunsaturated fatty acids (PUFAs). At the first step, AY "Amano" 400SD was chosen to mainly hydrolyze MUFAs from tuna oil under the conditions as described previously. At the second step, second hydrolysis by Candida antarctica lipase A (CAL-A) was conducted to mainly remove SFAs in acylglycerols isolated from the hydrolysate obtained at the first step.