**Executive Summary**
This document reports on a novel nano soft gold-liquid crystal (Au-LC) hybrid material developed by researchers at the Centre for Nano and Soft Matter Sciences (CeNS), Bengaluru. The material exhibits high thermal stability and enhanced optical features, paving the way for advanced optical technologies, energy-efficient electronics, and advanced sensors. The findings are published in ACS Applied Nano Materials.
**Key Points / Main Content**
* **Material Development:**
* Researchers synthesized an amine-functionalized liquid crystal (LC) that acts as a reducing agent, triggering the formation of gold nanoparticles and stabilizing them, eliminating the need for additional reagents.
* The resulting Au-LC composite exhibits enhanced thermal stability, increasing from 27°C (pure LC) to 145°C.
* The composite demonstrates unprecedented optical properties, including the emergence of Fano-like resonance.
* **Applications:**
* The Au-LC composite can be used in plasmonic lasers (spasers), ultra-sensitive sensors, and materials that guide light.
* Potential applications include high-performance filters, invisibility cloaks, optics, nano-photonics, and biomedical imaging.
* **Significance:**
* This nano-soft hybrid material offers a more accessible and efficient route to achieving effects that previously required intricate and expensive systems.
* The material has potential as a practical platform for real-world applications, including smarter sensors, responsive coatings, and next-generation photonic devices.
* **Publication:**
* Findings published in *ACS Applied Nano Materials*.
* Publication link: 10.1021/acsanm.5c00923
**Impact Analysis**
**Researchers at CeNS, Bengaluru, led by Dr. B.L.V. Prasad**
* **Impact:** Recognition for their research on novel nano-soft hybrid material and the potential for future funding and research opportunities.
* **Action Required:** Continue to explore the applications of the material and disseminate findings through publications and presentations.
**Department of Science and Technology (DST)**
* **Impact:** Validates DST's support for innovative research and development in nanotechnology and materials science.
* **Action Required:** Continue to support research initiatives in these fields.
**Materials Science and Technology Industry**
* **Impact:** Access to a new material with advanced optical and thermal properties, offering potential for various applications.
* **Action Required:** Evaluate the potential of this material for incorporation into new and existing products.
Key Entities Referenced
Department of Science and Technology (DST): The autonomous institute responsible for research in nano and soft matter sciences.
Centre for Nano and Soft Matter Sciences (CeNS), Bengaluru: The research center where the nano soft gold-liquid crystal hybrid material was developed.
ACS Applied Nano Materials: Journal where the findings by the team were published
Ministry of Science & Technology
Simple tweak, brings big leap for electro-optics
Posted On: 24 FEB 2026 2:49PM by PIB Delhi
A novel nano soft gold–liquid crystal hybrid material that is stable to high temperature fluctuations and
has increased optical features can facilitate next generation optical technologies, energy-efficient
electronics and advanced sensors.
Nano–soft hybrid materials mark an exciting frontier in materials science—where the precision of
nanotechnology meets the versatility of soft matter. These materials have a significant demand in cutting-
edge electro-optical materials.
A group of researchers from the Centre for Nano and Soft Matter Sciences (CeNS), Bengaluru, an
autonomous institute of the Department of Science and Technology (DST), led by senior scientist Dr.
B.L.V. Prasad and Ph.D. scholar Muskan Duggal with key contributions from Dr. S. Krishna Prasad, Dr.
D. S. Shankar Rao, Dr. C.V. Yelamaggad, and Dr. Santosh Khatavi have used molecular engineering and
minimal processing to bring about dramatic structural and functional transformations resulting in an gold
liquid crystal (Au-LC) composite with high thermal stability and enhanced optical features.
Through molecular engineering and minimal processing, researchers brought about significant structural
and functional transformations leading to extraordinary performance in the new material.
The work involved the synthesis of a molecule called an amine-functionalized liquid crystal (LC), that
acted as a reducing agent, triggering formation of gold nanoparticles and also stabilized them in situ,
obviating the need for additional reagents.
This smart molecular choice streamlined the synthesis and unlocked significant control over hybrid
structure, demonstrating how simple ligand engineering can lead to versatile results in material design.
The innovative design drastically enhanced thermal stability ranges from 27 ℃ for pure LC to 145 ℃ for
the hybrid material (Au-LC composite), and unprecedented optical properties such as emergence of a rare
and intriguing optical effect called Fano-like resonance that olds tremendous potential in advanced light-
based technologies.
It is used in plasmonic lasers (spasers), which are extremely small yet powerful light sources, in ultra-
sensitive sensors that can detect tiny amounts of chemicals, pollutants, or biological markers and in
specially engineered materials that guide light in precise ways. This helps create high-performance filters
and even invisibility cloaks. These breakthroughs are shaping future of optics, nano-photonics, and
biomedical imaging.Fig: Visual representation of AU-LC composites
The distinctive optical behavior that emerged from simple nano–soft hybrid material prepared by CeNS
researchers suggests that we may now have a more accessible and efficient route to achieving effects that
once required intricate and expensive systems.
The findings by the team published in ACS Applied Nano Materials highlight the potential of these
hybrids to serve as practical platforms for real-world applications—enabling the development of smarter
sensors, responsive coatings, and next-generation photonic devices with greater ease and scalability.
Publication link: 10.1021/acsanm.5c00923
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