In this review articles, the recent studies on photochemical surface immobilization of phospholipidpolymers have been summarized. It is well known that phospholipid polymers can reduce nonspecific proteinadsorption, cell adhesion and foreign body reaction. In order to accomplish universal surface immobilization ofphospholipid polymers, photochemical processes have been recently employed. The processes can be mainlydivided into surface-initiated photopolymerization and immobilization of phospholipid polymers bearingphotoreactive functional groups. The surface-initiated photopolymerization is applicable not only to producingnon-fouling surfaces but also making surfaces lubricant. This process is then used for long-lasting artificialhip joint implants. In contrast, photo-reactive phospholipid polymers are useful for versatile and regiospecificsurface modification of various substrates which can be applied in biomedical fields.

Liquid marbles are liquid droplets stabilized by solid particles adsorbed to the gas-liquid interface. Theliquid marble technology makes it possible to treat the liquid as a non-sticky powder. In nature, certain kindof aphids, small sap-sucking insects, fabricate liquid marbles utilizing honeydew as an inner liquid and waxparticles as a stabilizer, and treat the sticky liquid as non-wetting materials. Recently, we developed pressuresensitiveadhesive powder consisting of liquid marbles with an adhesive polymer core and a hard nanoparticleshell morphology based on the liquid marble engineering. The pressure-sensitive adhesive powder showsno adhesion in its original form, and shows its adhesive nature only after application of shear stress. In thisreview article, we introduce liquid marbles fabricated by aphids. Then, we describe fabrication, structure andadhesive property of the pressure-sensitive adhesive powder.

We have developed and commercialized novel biomass-based diisocyanate 1,5-pentamethylendiisocyanate,（1,5-PDI, STABiO^® PDI^®） and the isocyanurate in which concept with high performance and sustainablematerial. 1,5-PDI and the isocyanurate which have been synthesized from biomass resource show highreactivity with alcohol and can be introduced high performance polyurethane compared to hexamethylenediisocyanate（ HDI）, which have been produced from oil resource has one more carbon atoms than 1,5-PDIand the isocyanurate based polyurethane. This paper describes the properties of 1,5-PDI,the isocyanurate andpolyurethane coatings prepared by them.

Coagulating strength of some commercial alkoxy silanes for conservation of stone cultural assets aftersolidified was compared. For this purpose, OH100, OM25 and OM50（ Wacker Chemie AG., Germany） andTOT（ Tanaka Geological Corp., Japan） were used. The compression test of solidified model sand was done.The fracture forces for OM50 and OM25 were higher than those for OH100 and TOT. From the results, thecoagulating strength was higher for OM50 and OM25. From thermogravimetric analysis, all used alkoxy silaneswere mixture of monomeric alkoxy silane and its oligomer and those listed in the order of oligomer contentwere OM50 > OM25 > OH100 > TOT. From ¹H pulse nuclear magnetic resonance analysis, solidified alkoxysilanes listed in the order of molecular mobility were TOT > OH100 > M25 > OM50. The crosslinking degree ofsolidified alkoxy silane increased with an increase in the oligomer content. For this reason, the fracture forceof compression test, namely the coagulating strength was higher for OM25 and OM50 than OH100 and TOT.The addition of small amount of epoxy resin to OM50 was effective for increasing of coagulating strength.