Chiral separation, the process of isolating enantiomers from a racemic mixture, holds paramount importance in diverse scientific disciplines. Using chiral separation methods like chromatography and electrophoresis, enantiomers can be isolated and characterized. This study emphasizes the significance of chiral separation in drug development, quality control, environmental analysis, and chemical synthesis, facilitating improved therapeutic outcomes, regulatory compliance, and enhanced industrial processes. Capillary electrophoresis (CE) has emerged as a powerful technique for the analysis of chiral drugs. This review also highlights the significance of CE in chiral drug analysis, emphasizing its high separation efficiency, rapid analysis times, and compatibility with other detection techniques. High-performance liquid chromatography (HPLC) has become a vital technique for chiral drugs analysis. Through the utilization of a chiral stationary phase, HPLC separates enantiomers based on their differential interactions, allowing for the quantification of individual enantiomeric concentrations. This study also emphasizes the significance of HPLC in chiral drug analysis, highlighting its excellent resolution, sensitivity, and applicability. The resolution and enantiomeric analysis of nonsteroidal anti-inflammatory drugs (NSAIDs) hold great importance due to their chiral nature and potential variations in pharmacological effects. Several studies have emphasized the significance of resolving and analyzing the enantiomers of NSAIDs. Enantiomeric analysis provides critical insights into the pharmacokinetics, pharmacodynamics, and potential interactions of NSAIDs, aiding in drug design, optimization, and personalized medicine for improved therapeutic outcomes and patient safety. Microfluidics systems have revolutionized chiral separation, offering miniaturization, precise fluid control, and high throughput. Integration of microscale channels and techniques provides a promising platform for on-chip chiral analysis in pharmaceuticals and analytical chemistry. Their applications in techniques such as high-performance liquid chromatography (HPLC) and capillary electrochromatography (CEC) offer improved resolution and faster analysis times, making them valuable tools for enantiomeric analysis in pharmaceutical, environmental, and biomedical research.

Boron nitride (BN) nanomaterials, spanning zero-dimensional (0D) quantum dots, 1D nanotubes, 2D nanosheets, 3D and macroscopic architectures, have garnered emerging attention as functional analogs to carbon-based nanomaterials. Their wide band gap, high thermal conductivity, electrical insulation, and chemical inertness make them versatile candidates for advanced technologies. This review highlights the synthesis–structure–function relationships achieved through top–down methods, such as exfoliation and ball milling, and bottom–up strategies, including chemical vapor deposition and plasma processing. Defect engineering, dopant incorporation, and surface functionalization are further discussed as key levers for tailoring BN nanomaterials' optical, electronic, and interfacial behavior. The review also explores the diverse range of BN nanomaterial applications across various disciplines, such as chemical analysis, biomedicine, catalysis, energy, and aerospace. The recent advances highlight opportunities for data-driven strategies coupled with operando characterization to control and optimize composition, morphology, and defect chemistry. These developments are expected to accelerate translation into practical technologies across wide applications.