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This study describes a hydrophobic, structurally reinforced composite aerogel for intelligent packaging, prepared by incorporating beeswax-modified halloysite nanotubes and black rice anthocyanin as a pH indicator. The resulting aerogel exhibited a water contact angle of 121.35° ± 1.60°, a water absorption of 52.11 %, and a hardness of 15,605.2 N. Additionally, the composite maintained a low density of 44.27 kg/m and high porosity (94.70 %). This composite aerogel responds rapidly to ammonia gas and exhibits a significant change in color within 60 s, and shrimp freshness was successfully monitored in real time via colorimetry after storage at 25 °C and 4 °C. This study provides theoretical guidance for the selection and structural design of high-performance intelligent packaging materials and offers additional solutions for monitoring the freshness of protein-rich foods.
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http://dx.doi.org/10.1016/j.foodchem.2025.146160 | DOI Listing |
J Vis Exp
August 2025
Tencent Quantum Laboratory;
Electrolytes are important components in lithium-ion batteries. However, battery degradation due to irreversible electrochemical reactions in the electrolyte can consume electrolyte molecules and severely reduce its effective operation lifetime. It is hence important to study the electrochemical reaction pathways in the battery electrolyte to further improve lithium-ion battery reliability.
View Article and Find Full Text PDFACS Omega
September 2025
College of Intelligent Science and Control Engineering, Jinling Institute of Technology, Nanjing 211169, Jiangsu, China.
State of charge (SOC) is extremely critical to the reliability of lithium-ion (Li-ion) battery utilization. In this study, a novel problem in which internal differences occurred in the battery package, causing uncertain SOC initialization of each battery unit, is solved by combining the variational theorem and the extended Kalman filter (EKF) algorithm. First, the importance of the initialized SOC setting of each unit in the battery package is proposed by determining the theoretical relationship between the initialization value and the current estimation result.
View Article and Find Full Text PDFJ Mol Model
September 2025
School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350116, People's Republic of China.
Context: This study systematically investigates the growth mechanism of nitrogen-doped graphene in a plasma environment, with a particular focus on the effects of temperature and hydrogen radicals on its structural evolution. The results reveal that, at 3000 K, the formation of nitrogen-doped graphene proceeds through three stages: carbon chain elongation, cyclization, and subsequent condensation into planar structures. During this process, nitrogen atoms are gradually incorporated into the carbon network, forming various doping configurations such as pyridinic-N, pyrrolic-N, and graphitic-N.
View Article and Find Full Text PDFAppl Psychol Meas
September 2025
Department of Philosophy, Sociology, Education and Applied Psychology, University of Padova (IT), Italy.
Adv Sci (Weinh)
September 2025
Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, 92093-0359, USA.
Discovery of therapeutic antibodies against infectious disease pathogens presents distinct challenges. Ideal candidates must possess not only the properties required for any therapeutic antibody (e.g.
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