Laser Induced Forward Transfer for Microbiome Microniche Isolation
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Solution Overview
Problem
Current methods for analyzing microbiomes lose spatial orientation and viability of microorganisms when sampling at scales below 0.1 g and centimeters, as they require aggressive removal from solid-phase environments, leading to inefficient isolation and culture of 'unculturables' and disruption of symbiotic relationships.
Innovation Solution
A laser-based printing method, Biological Laser Printing (BioLP), is used to isolate and deposit microscale portions of microbiomes directly from solid-phase samples without removing them from their natural environment, preserving spatial organization and viability, allowing for high-throughput analysis and culturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional sampling methods are used to analyze microbiomes at gram scale, then the sampling process is simple and straightforward, but spatial orientation and viability of microorganisms are lost below 0.1 g and centimeter scale
Solution Approach 1:
The patent divides the microbiome sample into discrete microniche units (subsections below 1 cm³) and uses a laser-based system to selectively transfer individual microniches to separate wells in a microplate. This segmentation enables spatial resolution at the microniche level while maintaining organizational structure through the grid-pattern transfer process.
Solution Approach 2:
The patent introduces a liquid bridge as an intermediary medium between the solid-phase microbiome sample and the receiving microplate. The laser-induced capillary action draws material through this liquid bridge, enabling precise transfer of microniches while preserving spatial information and microorganism viability without direct contact between the sample and plate surfaces.
2Productivity
If aggressive removal methods are used to isolate microorganisms from solid-phase environments, then isolation efficiency increases, but symbiotic relationships and viability are disrupted
Solution Approach 1:
The patent extracts individual microniches from the bulk microbiome sample using laser-induced forward transfer through a liquid bridge. This extraction method isolates specific microniche units containing microorganisms and their associated environment without requiring aggressive mechanical disruption, thereby preserving symbiotic relationships within each transferred unit while enabling high-throughput processing.
Solution Approach 2:
The patent replaces traditional mechanical agitation, vortexing, or sonication methods with a laser-based optical system to transfer microniches. The laser energy induces capillary action in the liquid bridge to draw material forward, eliminating the need for mechanical forces that would disrupt symbiotic relationships while maintaining high isolation throughput through automated well-by-well transfer.
3Adaptability or versatility
If conventional sampling approaches are used, then the methodology is well-established and reliable, but the ability to culture 'unculturables' and maintain spatial relationships is insufficient
Solution Approach 1:
The patent transitions from traditional bulk liquid-phase sampling to a spatially-resolved solid-phase approach, transferring microniches in their native three-dimensional configuration to a two-dimensional microplate array. This dimensional transformation preserves spatial relationships and environmental context, enabling cultivation of microorganisms that require specific spatial arrangements or community interactions, thereby increasing culturing capability while maintaining implementation feasibility through standardized microplate formats.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient isolation and culturing of single cells and consortia while maintaining natural spatial relationships, significantly increasing the chances of culturing 'unculturables' and providing detailed characterization of microbial ecosystems at a microscale.
Implementation Method 1
isolation and deposition of microorganisms from solid-phase and solid suspension in liquid phase microbiomes using laser induced forward transfer
Implementation Method 2
A portion of the interlayer is energized by absorption of the photon energy, and the energized interlayer causes a transfer of a portion of the transfer material
Data Source
AI summary
A method for printing materials by: providing a receiving substrate; providing a target substrate having a photon-transparent support, a photon absorbent interlayer coated on the support, and a transfer material of a solid-phase environmental sample coated on top of the interlayer opposite to the support; and directing photon energy through the transparent support so that the photon energy strikes the interlayer is described. The environmental sample includes living organisms. A portion of the interlayer is energized by absorption of the photon energy, and the energized interlayer causes a transfer of a portion of the environmental sample including the microorganisms across a gap between the target substrate and the receiving substrate and onto the receiving substrate.