At NASK, we have transformed the way active ingredients are delivered. While conventional carriers often struggle with limited compatibility, rapid degradation, or the need for chemical preservatives, our electrospun nanofiber platform offers a fundamentally more elegant and versatile solution.
We have created a delivery system that acts as a programmable reservoir—capable of encapsulating virtually any active molecule and releasing it with precise control, all without the use of preservatives.
The Science of Controlled Release: Engineering the Matrix
Our technology is built upon a deep understanding of polymer physics, nanofiber architecture, and molecular interactions. Using our proprietary electrospinning process, we create a three-dimensional nanofibrous matrix that serves as a protective and programmable carrier for a wide range of active ingredients.
The key to our innovation lies in two interconnected mechanisms that allow us to precisely tune release kinetics:
Molecular-Level Encapsulation and Compatibility
Unlike traditional delivery systems that are limited by the chemical properties of the active ingredient, our platform is inherently versatile. We engineer the polymer matrix to accommodate:
Small molecules, peptides, and proteins
from low-molecular-weight compounds to complex biologics
Hydrophilic and hydrophobic actives
whether water-soluble or oil-based
Positively and negatively charged molecules
enabling us to work with ionic actives without charge-related instability
This versatility is achieved through careful selection of polymer systems and precise control over the electrospinning environment. The active ingredient is uniformly distributed within the nanofiber matrix, where it is protected from environmental degradation without the need for chemical preservatives.
Tunable Release Kinetics Through Structural and Compositional Design
The release rate of the active ingredient is not a fixed property of our nanofiber—it is a parameter we can precisely engineer. We achieve this through two primary design levers:
Structural Control
By adjusting the nanofiber diameter, porosity, and nanofiber alignment during the electrospinning process, we can create diffusion pathways of varying complexity. Denser, smaller-diameter nanofibers slow release, while more porous structures facilitate faster release.
Compositional Control
We can select and blend polymers with specific degradation profiles and hydrophobic/hydrophilic characteristics. A hydrophobic matrix will release a hydrophilic active more slowly, while a hydrophilic matrix will release it more rapidly. By layering different polymer formulations, we can create multi-stage release profiles—for example, a burst release followed by sustained delivery.
This dual control mechanism enables us to achieve release profiles ranging from immediate to sustained over days, weeks, or longer—all without relying on preservatives to maintain activity.
Stability Without Preservatives: A Scientific Advantage
One of the most significant innovations of our platform is its ability to maintain the bioactivity of sensitive ingredients—particularly peptides and proteins—without adding preservatives that can cause skin irritation or formulation instability.
Our electrospinning process operates under mild, solvent-controlled conditions that preserve the secondary and tertiary structure of delicate biomolecules. Once encapsulated, the active ingredient is physically isolated from oxygen, moisture, and light within the nanofiber matrix. This protective microenvironment ensures long-term stability without the need for chemical preservatives, making our platform ideal for applications where safety and biocompatibility are paramount.
A Platform for Innovation: Unlocking New Markets
Our preservative-free, controlled-release nanofiber technology is not a single product—it is a versatile platform with applications across multiple industries. We are actively seeking partners to explore and commercialize this technology in:
Healthcare & Medical
- Adult and baby diapers:
Delivery of skin-soothing ingredients (e.g., aloe, vitamin E, probiotics) to prevent diaper rash without preservatives that can irritate sensitive skin - Feminine hygiene products:
pH-regulating and antimicrobial agents delivered over extended wear time to reduce the risk of bacterial vaginosis and irritation - Facial masks and skincare: Controlled release of peptides,
hyaluronic acid, and antioxidants over hours of wear for enhanced efficacy without preservatives
Wound Care & Medical
- Chronic wound dressings:
Sustained delivery of growth factors, antimicrobial peptides, or anti-inflammatory agents to promote healing while reducing dressing change frequency - Post-surgical implants:
Localized, sustained release of antibiotics or analgesics directly at the surgical site - Transdermal patches:
Programmable release of small molecule drugs through the skin
Pharmaceutical & Biotech
- Drug screening platforms:
Nanofiber-based cell culture scaffolds that release test compounds in a controlled manner for more physiologically relevant assays - Tissue engineering:
Scaffolds that sequentially release multiple growth factors to guide stem cell differentiation and tissue regeneration
Agriculture & Food
- Preservative-free active packaging:
Release of antioxidants or antimicrobials to extend shelf life without direct food contact with preservatives - Agricultural delivery:
Controlled release of pheromones, nutrients, or biocontrol agents
By partnering with NASK, you gain access to a patented, scientifically rigorous delivery platform that combines unparalleled versatility with precision engineering. Whether your goal is to enhance product performance, eliminate preservatives, or create entirely new categories, our nanofiber technology provides the foundation for your next innovation.