Cascade Structured Plasmonic Liquid Crystal Biosensor for the Rapid Detection of Harmful Bacteria Dispersed in Potable Water

Advanced Sensor Research, Год журнала: 2024, Номер 3(8)

Опубликована: Апрель 27, 2024

Abstract Pathogenic microorganisms contaminating potable water are a serious quality concern because they have severe consequences for human and environmental health. Managing contamination requires the availability of fast highly sensitive point‐of‐use detection systems responsive to wide concentration range. In present work, this goal is achieved by realizing cascade‐structured biosensor that exploits innovative stimuli‐responsive materials such as gold nanorods (AuNRs) photosensitive nematic liquid crystals (NLCs). The cascade structure fabricated interfacing glass substrate in back‐to‐front arrangement, hosting an array bioactivated AuNRs NLC cell. integrates microfluidic channels, allowing direct sampling analysis reduced volumes with high sensitivity. combines same device two independent optical transducers: bioactive (plasmonic biosensor), refractive index alterations, cell detects presence pathogens responding light intensity variations. plasmonic performs exceptionally well very low concentrations bacteria. contrast, works high‐concentration bacteria, thus providing cascade‐like system able detect bacteria range from 10 9 CFU mL −1 .

Язык: Английский

---

Intelligent Optical Materials Based on Polymer Dispersed Cholesteric Liquid Crystals

Macromolecular Chemistry and Physics, Год журнала: 2025, Номер unknown

Опубликована: Фев. 24, 2025

Abstract Cholesteric liquid crystals (CLCs), a class of photonic materials with multi‐stimulus response and tunable bandgaps (PBGs), exhibit the characteristics selective circularly polarized reflection properties due to helical assembly supramolecules. To enhance their practical applicability, CLCs can be uniformly dispersed as microdroplets within polymer matrices, forming cholesteric (PDCLCs). This composite system not only provides essential mechanical stability but also enables enhanced multimodal responses through matrix interactions. PDCLC have been widely used in fields dynamic displays, intelligent sensors, anti‐counterfeiting systems optical encryption devices. review comprehensively surveys fundamental properties, preparation methods, field‐responsive behaviors major applications PDCLCs. Furthermore, current challenges future developments PDCLCs are prospected further promote scientific research application materials.

Язык: Английский

---

Integrating the Stimuli‐Responsiveness of Microparticles via Matrix Embedding for Smart Soft Materials with Customized Switchable Properties

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Июль 16, 2024

Abstract Smart soft materials are the focus of extensive research efforts due to their potential applications in various fields. Inspired by nature, embedding smart micro‐inclusions a substrate provides feasible strategy integrate smartness individual microparticles for creating at macroscale, broadening capabilities and materials. This decouples design intelligence materials, leading broader space both mechanical properties composites. In this Perspective, recent advances using summarized. The methods developed construct composites matrix first introduced, followed detailed discussions on material compositions, stimuli responsiveness, composite systems. Various based advanced functionalities that enabled those highlighted. study also points out directions further advance unconventional following bioinspired approach.

Язык: Английский

---

Frog tongue-inspired wettable microfibers for particles capture

Science Bulletin, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Язык: Английский

---