There are over 36,500 pieces of space debris of larger than 10 cm in orbit according to statistical model orbit provided by European Space Agency’s Space Debris Office at European Space Operations Centre in Darmstadt, Germany. Any of those debris can pose a threat to operational satellites. Active debris removal (ADR) is conducted to solve the above problems for stabilizing the space debris environment. Unfortunately, the angular velocity of space debris exceeds the maximum angular velocity of 4 to 5 deg/s that can be directly captured by a robotic arm. Therefore, to stabilize the debris environment, the first task, i.e., de-tumbling tasks, is to reduce the initial angular velocity of the debris by applying an external torque. To ensure the safety of the de-tumbling tasks avoiding collision between the de-tumbling device and the uncooperative space target, many contactless methods have been studied. Among them, the contactless method based on electromagnetic eddy current method has received increasing attention due to the advantages of pollution-free and high safety performance.

UC Riverside scientists have created a small-scale system that transforms food waste into high-protein animal feed and fertilizer using black soldier flies, offering a sustainable solution to a major environmental problem.

An efficient and highly selective NADH regeneration system has been constructed by integrating M with CIS microspheres via facile electrostatic self-assembly with L-AA as a sacrificial agent.

Mass spectrometry (MS) is an analytical technique for molecular identification and characterization, with applications spanning various scientific disciplines. Despite its significance, MS faces challenges in widespread adoption due to cost constraints, instrument portability issues, and complex sample handling requirements. In recent years, 3D printing has emerged as a technology across industries due to its cost-effectiveness, customization capabilities, and rapid prototyping features. This review explores the integration of 3D printing with MS technology to overcome existing limitations and enhance biomedical analysis capabilities. We first categorize mainstream 3D printing methods and assess their potential in MS applications. We also discuss their roles in different MS categories such as liquid chromatography mass spectrometry (LCMS), gas chromatography mass spectrometry (GCMS), ambient ionization mass spectrometry (AIMS), and matrix-assisted laser desorption/ionization MS (MALDI MS) in biomedical research. Additionally, we highlight the current challenges and future research directions for advancing 3D printing-assisted mass spectrometry, emphasizing its role in enabling portable, cost-effective, and customized MS solutions for biomedical analysis.

Precise tumor diagnosis and treatment require the support of abundant molecular information. However, conventional molecular diagnostic technologies gradually fail to satisfy the demands of clinical therapy due to limited detection performance. Benefiting from highly specific target sequence recognition and efficient cis/trans cleavage activity, CRISPR/Cas system has been widely employed to construct novel molecular diagnostic strategies, hailed as the “next-generation molecular diagnostic technology”. This review focuses on recent advances in CRISPR molecular diagnostic systems for the detection of tumor variant gene, protein, and liquid biopsy biomarker, and outlines strategies for CRISPR in situ molecular detection. In addition, we explore general principles and development trends in the construction of CRISPR molecular diagnostic system and emphasize the revolutionary impact that it has brought to the field of molecular diagnostics.

No calibration, no alignment errors: A new laser system images and machines in one step, carving precise shapes in circuits and weeding out bad micro-LEDs with better than 15 µm accuracy—read how it works.

The mode transition of combined-cycle inlets, governed by sidewall constraints, is inherently characterized by significant three-dimensional (3D) unsteady flow phenomena that elude capture by conventional two-dimensional (2D) diagnostics or single-point transducers. This research published in the Chinese Journal of Aeronautics utilizes fast-response pressure-sensitive paint (PSP) to conduct dynamic measurements on the wall pressure field of a typical over-under TBCC inlet during mode transition, successfully elucidating the 3D characteristics of these unsteady flows.