Next-Generation Therapeutic Bacteriocins for Targeted Biofilm Disruption

Publication ID: 24-11857606_0010_PTD
Published: October 28, 2025
Category:Future Evolutions & Paradigm Shifts

Legal Citation

pr1or.art Inc., “Next-Generation Therapeutic Bacteriocins for Targeted Biofilm Disruption,” Published Technical Disclosure No. 24-11857606_0010_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857606_0010_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. 11,857,606.

Summary of the Inventive Concept

A novel system for treating bacterial infections by utilizing bacteriocins with advanced receptor-mediated translocation domains and cargo domains to selectively target and disrupt biofilm formation in Gram-negative bacteria, thereby preventing antibiotic resistance.

Background and Problem Solved

The original patent disclosed therapeutic bacteriocins for reducing microbial growth. However, the limitations of these bacteriocins include their inability to selectively target specific bacterial species and their potential to contribute to antibiotic resistance. The new inventive concept addresses these limitations by envisioning a next-generation bacteriocin system that can target and disrupt biofilm formation in Gram-negative bacteria, thereby preventing antibiotic resistance.

Detailed Description of the Inventive Concept

The new inventive concept comprises a bacteriocin with a receptor-mediated translocation domain and a cargo domain that can selectively target and disrupt biofilm formation in Gram-negative bacteria. The receptor-mediated translocation domain recognizes specific receptors on the surface of Gram-negative bacteria, allowing the bacteriocin to target these bacteria with high specificity. The cargo domain then disrupts biofilm formation, preventing the development of antibiotic resistance. This system can be administered as a therapeutic composition, used as a biosensor to detect bacterial infections, or modulate the gut microbiome to promote a healthy balance of gut microbiota.

Novelty and Inventive Step

The new claims introduce the concept of selectively targeting and disrupting biofilm formation in Gram-negative bacteria using advanced receptor-mediated translocation domains and cargo domains. This is a significant departure from the original patent, which did not address biofilm formation or antibiotic resistance. The new inventive concept's ability to prevent antibiotic resistance and target specific bacterial species is a non-obvious improvement over the original patent.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of different receptor-mediated translocation domains or cargo domains to target different bacterial species or disrupt different cellular pathways. Variations could also include the use of the bacteriocin system in combination with other antimicrobial agents or as part of a personalized medicine approach.

Potential Commercial Applications and Market

The new inventive concept has significant commercial potential in the treatment of bacterial infections, particularly those caused by antibiotic-resistant Gram-negative bacteria. The market for antimicrobial therapies is growing rapidly, and the ability to prevent antibiotic resistance and target specific bacterial species could revolutionize the treatment of bacterial infections.

CPC Classifications

SectionClassGroup
A A61 A61K38/43
A A01 A01N63/10
A A01 A01N63/50
C C07 C07K14/21
C C07 C07K14/26
C C12 C12N9/2462

Field of Art

Biotechnology and microbial therapeutics, specifically focusing on bacteriocin-based antimicrobial systems targeting Gram-negative bacteria, requiring advanced knowledge of protein engineering, microbial pathogenesis, and molecular biology

Person of Ordinary Skill (PHOSITA) Profile

A researcher with a PhD in microbiology or biotechnology, experienced in protein domain manipulation, bacterial targeting strategies, and antimicrobial therapeutic design, familiar with bacteriocin structure-function relationships

Obviousness Rationale

A person having ordinary skill would recognize the inherent potential of the source patent's bacteriocin sequence to be modified for enhanced targeting and therapeutic applications. The disclosed variations represent predictable extensions of the existing bacteriocin technology, leveraging known protein engineering techniques to improve specificity and therapeutic utility. The combination of receptor-mediated translocation domains with cargo domains for biofilm disruption would be a logical progression for a skilled practitioner seeking to expand the bacteriocin's antimicrobial capabilities.

Obvious Combinations & Variations

Source Patent Element
Bacteriocin with specific receptor-mediated translocation domain from SEQ ID NO:10
PTD Variation
Adding a cargo domain specifically targeting biofilm formation in Gram-negative bacteria
Obviousness Reasoning
Modifying bacteriocins with additional functional domains is a known technique in protein engineering, and targeting biofilm formation represents a predictable improvement in antimicrobial strategies
Source Patent Element
Method of killing specific bacterial species using bacteriocin
PTD Variation
Expanding method to prevent antibiotic resistance by disrupting biofilm formation
Obviousness Reasoning
Addressing antibiotic resistance is a well-recognized challenge in microbial therapeutics, and using targeted protein domains to achieve this is a logical design choice
Source Patent Element
Bacteriocin with translocation and receptor binding domains
PTD Variation
Implementing the bacteriocin as a biosensor for detecting and treating bacterial infections
Obviousness Reasoning
Dual-function protein designs that combine detection and therapeutic capabilities are common in biotechnology, representing an obvious extension of the original bacteriocin concept
Source Patent Element
Bacteriocin targeting Klebsiella pneumoniae and Escherichia coli
PTD Variation
Developing a system for modulating gut microbiome by selectively targeting specific bacterial species
Obviousness Reasoning
Precision microbiome manipulation is a predictable application of targeted antimicrobial technologies, utilizing the inherent specificity of bacteriocin receptor domains
35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. ยง 103, the variations disclosed in the instant publication would have been obvious to a person having ordinary skill in the art at the time of invention, when viewed in light of US Patent 11857606. The disclosed bacteriocin modifications represent predictable extensions of known bacteriocin technologies, combining standard protein engineering techniques with recognized antimicrobial strategies to achieve enhanced bacterial targeting and therapeutic utility.

Original Patent Information

Patent NumberUS 11,857,606
TitleTherapeutic bacteriocins
Assignee(s)BACTOCLEAR HOLDINGS PTE. LTD.