CRISPR/Cas9 is the powerfulpopular genome editing technology which can recognize target gene by a single guide RNA with the advantages of precision, high efficiency, easy manipulation,low cost to be applied to promote the precision breeding of aquatic organisms. The potentials of genome editing in the precision breeding of ornamental fish are mainly focused on infertility control, alternation of colorshape, growth promotion, sex control, stress tolerance, virus resistance, etc.

"The designed ultrasound gel is modified with nanocrystalnanofiber. The product is designed to be sterilizablefits well to the ultrasound probe. With such nanomaterials, our product shows great ultrasound transmission abilityenhanced mechanical strength. The highlights of the this ultrasound agent include: (1) Enhanced compressibilitytensile strength with adjustable composition. (2) Improved infection controlreduced risk of complication. (3) Improved transmission depth with certain thicknessimproved image quality within superficial region."