Next-Generation Silk Protein Fragment Compositions for Biomedical Applications

Publication ID: 24-11857664_0005_PTD
Published: October 28, 2025
Category:Future Evolutions & Paradigm Shifts

Legal Citation

pr1or.art Inc., “Next-Generation Silk Protein Fragment Compositions for Biomedical Applications,” Published Technical Disclosure No. 24-11857664_0005_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857664_0005_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,664.

Summary of the Inventive Concept

This inventive concept envisions a next-generation silk protein fragment composition with hierarchical structures, tunable properties, and large-scale production capabilities, revolutionizing biomedical applications.

Background and Problem Solved

The original patent disclosed stable silk protein fragment compositions with specific molecular weights and crystalline domains. However, these compositions have limitations in terms of scalability, tunability, and hierarchical structure. The new inventive concept addresses these limitations by introducing a hierarchical structure of micro- and nano-fibers, large-scale production capabilities, and tunable properties, enabling advanced biomedical applications.

Detailed Description of the Inventive Concept

The new inventive concept comprises a hierarchical structure of micro-fibers with an average diameter of about 1-5 microns and nano-fibers with an average diameter of about 10-50 nanometers. This structure enables tunable mechanical strength, porosity, and surface area, making it ideal for biomedical applications. The composition can be generated through a scalable production process involving raw silk material processing, protein fragmentation, and purification units. Additionally, the composition can be used to create hydrogels, biosensors, and 3D printed scaffolds with tunable properties. The new claims introduce a paradigm shift in silk protein fragment technology, enabling the creation of complex, hierarchical structures with unprecedented properties.

Novelty and Inventive Step

The new inventive concept is novel and non-obvious compared to the original patent, as it introduces a hierarchical structure of micro- and nano-fibers, large-scale production capabilities, and tunable properties. These features enable advanced biomedical applications and overcome the limitations of the original patent.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include varying the diameter of the micro- and nano-fibers, introducing additional functional groups or molecules, or using different types of silk proteins. These variations could enable further customization of the composition for specific biomedical applications.

Potential Commercial Applications and Market

The new inventive concept has significant commercial potential in the biomedical industry, particularly in the fields of tissue engineering, regenerative medicine, and biosensing. The large-scale production capabilities and tunable properties of the composition make it an attractive solution for companies developing advanced biomedical products.

CPC Classifications

SectionClassGroup
A A61 A61K8/64
A A45 A45D33/00
A A61 A61K8/02
A A61 A61K8/0216
A A61 A61K8/042
A A61 A61K8/19
A A61 A61K8/27
A A61 A61K8/29
A A61 A61K8/365
A A61 A61K8/4953
A A61 A61K8/676
A A61 A61K8/735
A A61 A61K8/922
A A61 A61K8/97
A A61 A61K8/9789
A A61 A61K8/9794
A A61 A61K8/987
A A61 A61K9/08
A A61 A61K31/375
A A61 A61K38/00
A A61 A61K38/012
A A61 A61K45/06
A A61 A61K47/02
A A61 A61K47/12
A A61 A61K47/36
A A61 A61Q17/04
A A61 A61Q19/00
A A61 A61Q19/007
A A61 A61Q19/02
A A61 A61Q19/08
C C07 C07K1/12
C C07 C07K14/43586
A A61 A61K2800/591
A A61 A61K2800/72
A A61 A61K2800/74
A A61 A61K2800/75

Field of Art

Biomaterials and Bioengineering, with specific expertise in protein-based materials, silk protein processing, and biomedical material fabrication. Practitioners would have advanced degrees in materials science, bioengineering, or chemical engineering with specialized knowledge in protein modification and biomaterial design

Person of Ordinary Skill (PHOSITA) Profile

A skilled practitioner with expertise in protein engineering, materials characterization, and biomedical applications. Capable of understanding molecular structure manipulation, processing techniques for protein fragments, and translating material properties into functional designs

Obviousness Rationale

A PHOSITA would recognize that the PTD's hierarchical silk protein fragment structure represents a predictable extension of the source patent's teachings on silk protein fragmentation. The disclosed micro- and nano-fiber configurations are logical engineering variations that emerge from understanding silk protein's inherent structural capabilities. The systematic approach to creating tunable biomedical materials follows established materials science principles of structural engineering and protein modification.

Obvious Combinations & Variations

Source Patent Element
Silk fibroin protein fragments with controllable crystalline and amorphous domains (claims 3-5 of source patent)
PTD Variation
Hierarchical micro- and nano-fiber structures with tunable diameter and mechanical properties
Obviousness Reasoning
A PHOSITA would recognize that manipulating protein fragment crystallinity naturally leads to controllable structural configurations, making the hierarchical fiber design a predictable engineering outcome
Source Patent Element
Substantially solid silk protein fragment compositions with specific molecular weight ranges
PTD Variation
Large-scale production system for generating high-purity silk protein fragments
Obviousness Reasoning
Scaling production is a standard engineering challenge with predictable solution strategies, representing an obvious technological progression from laboratory-scale protein fragment preparation
Source Patent Element
Silk protein fragments for potential medical applications
PTD Variation
Specialized biomedical applications including hydrogels, biosensors, and 3D printed scaffolds
Obviousness Reasoning
Exploring diverse material applications is a standard approach in biomaterials engineering, with finite and predictable transformation pathways for protein-based materials
Source Patent Element
Protein fragment compositions with controllable structural domains
PTD Variation
Introducing functional groups and molecules to customize silk protein fragment compositions
Obviousness Reasoning
Molecular functionalization is a well-established technique in protein engineering, representing a known method for expanding material capabilities through predictable chemical modifications
Source Patent Element
Silk protein fragment compositions with defined molecular characteristics
PTD Variation
Creating complex, multi-scale structures with tunable mechanical and surface properties
Obviousness Reasoning
Structural complexity emerges naturally from understanding fundamental protein fragment behaviors, making advanced material design an obvious progression for a skilled practitioner
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857664 and the disclosed technical variations, a person having ordinary skill in the art would find the claimed silk protein fragment compositions and associated methodologies obvious and anticipated. The systematic exploration of structural configurations, production methods, and biomedical applications represents a predictable technological progression that does not rise to the level of non-obvious innovation.

Original Patent Information

Patent NumberUS 11,857,664
TitleStable silk protein fragment compositions
Assignee(s)EVOLVED BY NATURE, INC.