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브랜드 충성도에 영향을 미치는 SNS활동에 대한 연구 : 인스타그램과 밀레니얼 세대 중심으로
서은하,황성걸 커뮤니케이션디자인학회(구 시각디자인학회) 2020 커뮤니케이션 디자인학연구 Vol.73 No.-
스마트폰의 보편화와 소셜 네트워킹 서비스(SNS)의 급속한 확산으로 인해 소비자들과 기업 및 브랜드와의 상호작용 방식이 변화하고 있다. SNS 중에서도 특히 인스타그램의 활용도가 제일 높은 것으로 나타나면서, 인스타그램 주 사용자인 젊은 세대의 브랜드와의 상호작용 형태와 내용을 이해하는 것이 중요하다. 본 연구는 인스타그램 상의 소비자와 브랜드의 상호작용에 대한 연구로서, 밀레니얼 세대 소비자들의 브랜드와의 상호작용 활동 현황을 파악하고, 이러한 상호작용 활동이 어떻게 브랜드 충성도에 영향을 미치는지를 파악하는데 목적을 두고 있다. 본 연구를 위한 조사방법은 2단계로, 먼저 107개 브랜드의 인스타그램을 대상으로 상호작용의 내용을 분석하였으며, 이를 바탕으로 200명의 20~30대를 대상으로 상호작용 참여 활동에 대한 설문조사를 실시하였다. 인스타그램 활동현황에 대한 분석은 브랜드· 제품을 선경험하는 소비자, 브랜드에 관여하는 소비자, 브랜드를 홍보하는 소비자, 소통하는 브랜드와 소비자로 나타났다. 설문조사에 대한 분석 결과, 상호작용 활동은 브랜드측 소통, 자발적 홍보, 소비자측 소통, 선경험, 관여 순으로 나타났으며, 브랜드 충성도에 영향을 미치는 것은 브랜드측 소통만이 유의미한 것으로 나타났다. The universalization of smartphones and rapid propagation of social networking services (SNS) have transformed the mode of interaction between consumers and businesses/brands. Among such services, Instagram exhibits the highest rate of usage, and thus it is important to understand the mode and contents of interaction between brands and the young generation, the main users of Instagram. This study focuses on the interaction between consumers and brands on Instagram, examining the status of interactive activities between brands and Millenial consumers, and investigating the influence of such interactive activities on brand loyalty. The method of this study is in two parts; first, the contents of the interactions were analyzed for the Instagram accounts of 107 brands, and based on this analysis, a survey was conducted on the interactive participation against 200 subjects in their 20s and 30s. The analysis on Instagram activities showed that the activities were comprised of consumers experiencing the brand/product in advance, consumers getting involved with the brand, consumers advertising the brand, and consumers and brands communicating with each other. The result of the survey showed that the interactive activities were in the order of brand-side communication, voluntary advertisement, consumer-side communication, experience in advance, and invovleement, and only brand-side communication showed a significant influence on brand loyalty.
Polyurethane membrane with porous surface for controlled drug release in drug eluting stent
서은하,나건 한국생체재료학회 2014 생체재료학회지 Vol.18 No.4
Background: Membrane covered drug eluting stents (DES) were prepared to prevent tumor ingrowth and to control drug release. Polyurethane (PU) is commonly used for DES coating material because of high tensile strength. The release of paclitaxel (PTX) may increase from porous PU membrane. Results: Polyethylene glycol (PEG) was incorporated into PU membranes to form porous structure and control the release of hydrophobic anti-cancer drug such as PTX. The bare metal stents were coated with PEG incorporated PU and then, PEG was washed out to form porous structure. The crystallization of PTX was inhibited in porous PU membranes and the release of PTX from porous PU membranes was approximately 8.6% more extended over 19 days. Conclusions: The enhanced release of PTX from porous PU membranes may increase the patency for the DES covering materials.
Reactive Oxygen Species (ROS) - triggered nanoparticles for Targeted cancer therapy
심현준,서은하,나건 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0
The photodynamic therapy (PDT) and photochemical internalization (PCI) strategy have been employed in medical fields. The PCI is strategy that causes endo/lysosomal disruption through reactive oxygen species (ROS) and triggers drug release. Even though PCI improves the efficacy of drug, PCI has limitation to localize encapsulated drugs into the target site. To overcome this limitation, we developed ROS generable nanocarriers (RGNs) that consist of polysaccharide conjugated PS and ROS scavenger. ROS scavenger have disulfide bond which opened through light irradiation. Under irradiation, RGNs produce ROS that simultaneously trigger drug release and endo/lysosomal escape of drug into cytoplasm also PDT for efficient chemo-photodynamic cancer therapy. This new type of photomediated delivery system would provide a valuable approach to progress smart nanoplatform in the drug delivery system.