박승범 교수

A novel and universal procedure has been developed for producing nanosized stable silver particles on cotton fabrics in a simple and cost-effective manner with complete control of the silver loading level on the fabrics; the antibacterial effect of Ag-nanocoated fabrics on various bacteria was evaluated by growth inhibition; for biomedical applications, skin irritation tests on guinea pigs were performed and no side effects were observed.

Organic dye-incorporated smart silica-coated core–shell magnetic nanoparticles (MNP@SiO2) having dual-functionality (-PEG/NH2, see Figure) were easily fabricated, and the amine moieties on the NP surface were modified with maleimide functionality for specific covalent immobilization of biopolymers and bioactive small molecules. The sequence-independent immobilization of antibodies (Ab) is highlighted; Ab-modified MNP@SiO2 particles exhibit specific recognition for floating tumor cells or target

We demonstrated the importance of maximized skeletal diversity of privileged substructures for the construction of a drug-like small-molecule library through a series of high-throughput screening and subsequent bioevaluations. Our divergent pDOS strategy can provide an efficient approach for the discovery of novel small-molecule modulators with excellent specificity.

We developed a novel fluorescent bioprobe (SF44) that can specifically visualize the cellular lipid droplets in in vitro and in vivo systems and illustrated the mechanistic rationale of its fluorogenic property. Its application to image-based high throughput screening led us to the identification of a new small-molecule modulator of lipid droplet formation.

The use of covalent inhibitors in the field of drug discovery has attracted considerable attention in the 2000s. As a result, more than 50 covalent drugs are currently on the market, and numerous covalent drug candidates are now under development. Therefore, interest in covalent drugs is expected to continue in the future. The purpose of this focused review is to provide an understanding of the development of covalent inhibitors by describing their inherent characteristics, possibilities, and li

Fluorescence imaging enables the uniquely sensitive observation of functional- and molecular-recognition events in living cells. However, only a limited range of biological processes have been subjected to imaging because of the lack of a design strategy and difficulties in the synthesis of biosensors. Herein, we report a facile synthesis of emission-tunable and predictable Seoul-Fluors, 9-aryl-1,2-dihydrolopyrrolo[3,4-b]indolizin-3-ones, with various R(1) and R(2) substituents by coinage-metal-

The epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases has been implicated in a variety of cancers. In particular, activating mutations such as the L858R point mutation in exon 21 and the small in-frame deletions in exon 19 of the EGFR tyrosine kinase domain are correlated with sensitivity to EGFR tyrosine kinase inhibitors in non-small cell lung cancer (NSCLC) patients. Clinical treatment of patients is limited by the development of drug resistance resulting mainly from

A branching DOS strategy for an unbiased natural product-like library with embedded privileged benzopyran motif was established to provide complexity and diversity of resulting heterocycles with desired drug-likeness. The importance of skeletal diversity conducted on a privileged substructure was demonstrated through the biological evaluation of a small molecule library representing 22 unique core skeletons via in vitro cytotoxicity assay.

Target acquired: Fluorescence difference in two-dimensional gel electrophoresis (FITGE) was developed to observe the interactions between proteins and small molecules in an intact cellular environment. FITGE proved effective over conventional methods by successfully identifying the protein target of an anti-proliferative compound in live cells through the differentiation between specific and extensive non-specific binding of photoaffinity probes.