Research Interest: With a combination of molecular biology, biochemistry, cell biology, nutrition metabolism,transgenic/knockout mice model, I aim to uncover the complex molecular programs that regulates physiological or pathological biological pathways, such as cell commitment, cell metabolism, embryonic development, brain development, nutrition regulation, and the pathological mechanisms of human metabolic diseases, such as obesity, diabetes and neurological disease..

Research Interest: Aspect of biochemistry, molecular biology, endocrinology, metabolism, nutrition, pharmacology, and toxicology. Dr. Yamaguchi has an interesting for cell signaling mechanism, bone biology, nutritional factor and osteoporosis prevention, diabetes and diabetic osteoporosis, cancer biology, and cancer bone metastasis. Dr. Yamaguchi discovered two novel proteins and genes; cell signaling suppressor protein (named regucalcin; 1978) and transcriptional factor RGPR-p117 (regucalcin gene promoter region-related protein; 2001) in mammalian cells. Dr. Yamaguchi generated regucalcin transgenic rats, which were registered as international patents (USA, EU, Japan, and Korea), and this animal was found to induce osteoporosis and hyperlipidemia. Moreover, Dr. Yamaguchi proposed the potential role of regucalcin as a key suppressor protein in carcinogenesis.  Currently, the research of regucalcin is focused as a scientific topic 

Research Interest:  Obesity, metabolic syndrome, diabetes type 2,dyslipidemia,hypertension.

Research Interest: To explore the molecular biology and their use in genetic toxicology. currently held to identify the genetic research hazard of chemicals, physical and biological

Research Interest: Methodology of solid phase peptide synthesis and synthetic peptides with bioactivity

Research Interest: Studying the pathogenic process in betanodavirus and iridovirus infection in grouper GF-1 and larval grouper fish systems. His laboratory pioneered the use of grouper model to study betanodavirus in vivo on brain damaged, which as a model. 

Research Interest:  Fungal biotechnology, Marine bacterial phylogenetics and taxonomy

Research Interest: Pharmacology/Toxicology Isolation and Identification of Natural products, Drug Discovery and Development, Cellular and Molecular Biology of Diseases 

Research Interest: Polymeric Biomaterials and Green Materials: -Synthesis and Characterization, Surface Modification, and Patterning (soft and dip-pen lithography) and Polymers processing, Synthesis of Polyurethanes/Polyesters and Bio-based resins. Nanomaterials and Energy Materials: Polymer-HA or Polymer-CNT Nanocomposites, Synthesis of Nanofibers and Nanoparticles for cancer drug delivery, Chemical modification of Nanodiamond particles and Metallization of CNTs, Polymeric and silica Nanorods as reinforcing fillers for dental restoration materials for flowable composites), Polymer/graphene composite materials and Polymer/polyoxometalate composites for energy applications. Tissue Engineering/ Drug Delivery: Polymeric 3D-Nanofibrous Scaffolds for Bone, Vascular, Neural and Dental, Salivary glands and multifunctional nanoparticles for lung cancer drug and growth factor delivery, Nasal/mucosal delivery of therapeutics), Electrospining and Force-spinning techniques for polymer and ceramic composite nanofabrication. Additive bio-manufacturing and We-laid Process for biomaterials/scaffolds of complex tissues and interfaces. Characterization of Materials: Microscopic and Spectroscopic characterization (SEM, AFM, FT-IR, XPS), mechanical properties characterization (Tensile, compression, dynamic mechanical (DMA) and nanoindentation), thermal properties (TGA, DSC, TMA) and Rheological characterization of polymeric biomaterials, nanomaterials and hybrid polymer/inorganic composites and in vitro Cell Studies for biocompatibility and toxicity. In Vitro Evaluation of nano-structured materials/ nanodiamond wear-debris from orthopedic joint implants: Nanoscaled wear-debris isolation from Hip and knee Simulator (AMTI) and its inflammatory effect evaluation.

Research Interest: Polyhydroxyalkanoates (PHAs), bioprocess engineering, biopolymer fermentation, biogas, environmental biotechnology, and environmental microbiology

Research Interest:  Characterize,  evaluate  and  utilize  the  genetic  diversity of the G. max and G. soja for soybean breeding

Research Interest:  Wheat genetic engineering for resistance to Fusarium pathogens and tolerance to abiotic stresses, Molecular interaction between wheat and Fusarium pathogens Recombinant antibodies and bio-agents against Fusarium pathogens and mycotoxins

Research Interest:  A versatile biotechnologist with research experience ranging from searching for novel microbial enzymes using classical and metagenomic approaches, genetic engineering to tailor them for specific applications, fermentation, downstream processing and their biotechnological application. Biotechnological applications range from developing “Green Chemistry technologies”/processes, developing antimicrobial systems, and systems/and or products for preventing, monitoring and therapy of oxidative stress related human diseases (cancer, cardiovascular, respiratory, atherosclerosis, diabetes, neurodegenerative diseases).

Research Interest: Food Processing, health food and cosmetics, Research of Chinese herbal medicine research, Agricultural biotechnology, Supercritical fluid, and Mycology 

Research Interest:  Phosphate-based glass production and characterisation including Phosphate glass-fibre (PGF) production. He is also currently working on resorbable polymer composites, mainly for bone repair applications. His other interests include, calcium phosphate cements, microsphere technologies, drug delivery systems, Tissue Engineering and Regenerative Medicine applications