Nanobiotechnology-Enabled Modulation of Gut Microbiota: Functional Mechanisms, Targeted Delivery, and Diagnostic Innovations

The gut microbiota plays a pivotal role in host health through diverse and interconnected functional mechanisms. It actively participates in metabolic regulation and microbial metabolism — most notably through the fermentation of dietary fiber to produce short-chain fatty acids (SCFAs) — which in turn modulate multiple metabolic pathways and signal transduction cascades. Beyond metabolism, a balanced gut microbial community is essential for immune regulation and inflammatory homeostasis, preserving gut barrier integrity, reducing intestinal permeability, and preventing systemic infiltration of harmful substances. Disruption of this equilibrium is increasingly linked to a wide spectrum of metabolic and inflammatory disorders.Understanding the functional mechanisms underlying host-microbe interaction is therefore critical — both for advancing basic science and for developing targeted preventive and therapeutic strategies. Crucially, realising the translational potential of these insights requires precise tools for intervention and monitoring at the nanoscale. Engineered nanosystems — including smart nanoparticles, nanocarriers, and nanostructured delivery platforms — offer unprecedented control over the stability, targeted delivery, and controlled release of bioactive molecules that modulate gut microbiota composition and function. Complementary nanodiagnostic tools and nanosensors further enable real-time, high-resolution monitoring of microbiota-associated changes in intestinal physiology and host immune status.This Research Topic aims to bring together cutting-edge studies at the interface of gut microbiota biology and nanobiotechnology-enabled intervention and analysis. It seeks to:o Elucidate the functional mechanisms by which gut microbiota regulates host metabolism, immune homeostasis, inflammatory responses, and gut barrier integrityo Advance the design, fabrication, and characterisation of engineered nanosystems — including smart nanoparticles, nanocarriers, and controlled-release platforms — for precision modulation of gut microbiota composition and activityo Promote the development of nanodiagnostic tools and nanosensors for monitoring microbiota composition, functional outputs (e.g., SCFAs), and host-microbe interaction dynamicso Explore the safety, biocompatibility, and translational potential of nanobiomedical approaches in the context of gut healthThis Research Topic sits at the crossroads of gut microbiota science and nanobiotechnology, and welcomes interdisciplinary contributions spanning the following themes:1. Gut Microbiota Functional Mechanisms Microbial metabolism, dietary fiber fermentation and SCFA production, metabolic pathway modulation, signal transduction, immune regulation, inflammatory response, gut barrier function, intestinal permeability, and host-microbe interaction.2. Nanobiotechnology-Enabled Microbiota Modulation and Delivery Design and characterisation of smart nanoparticles, nanocarriers, and nanostructured delivery systems for targeted delivery and controlled release of probiotics, prebiotics, SCFAs, and other gut-regulatory bioactive molecules; stability and bioavailability enhancement; gut-targeted nano-formulation strategies.3. Nanodiagnostics and Nanosensors for Gut Health Development of nanobiosensors and nanodiagnostic platforms for monitoring gut microbiota composition, metabolite profiling, intestinal permeability, and inflammatory markers; organ-on-chip models for gut microbiota research.4. Translational and Safety Aspects Nanotoxicology and biocompatibility of gut-targeted nanodevices; translational and regulatory considerations for nanobiomedical interventions in microbiota-related disorders.This Research Topic accepts the following article types, unless otherwise specified in the Research Topic description:· Mini Review· Original Research· Review Topic editors: Qin He, Huadong Peng, Zhiwen Qi, Ran Tao Source: https://www.frontiersin.org/research-topics/80461/nanobiotechnology-enabled-modulation-of-gut-microbiota-functional-mechanisms-targeted-delivery-and-diagnostic-innovations