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폴리이미드의 패턴 형성 및 생물전자소자의 광다이오드 특성
함정민,고창범,최정우,오세용 한국공업화학회 2002 한국공업화학회 연구논문 초록집 Vol.2002 No.0
본 연구에서는 현재 상용화된 무기물 반도체 집적 기술의 한계를 극복하기 위한 대안으로 제시되고 있는 생물분자를 이용한 바이오 메모리 소자의 제작을 위해 서브마이크로 패턴 형성에 적합한 폴리이미드 LB 박막을 제조하여 패턴 형성 및 형성된 패턴 위에 금 전극의 표면 개질화를 통해 단백질을 고정화시키는 기능성 유기분자의 박막제작 공정기술을 확립하였다. 먼저 피라나 용액에 세척한 금 기판 위에 포지티브형 포토레지스트 물질인 감광성 폴리이미드 LB 박막을 제조한 후 광분해와 AFM을 이용한 e-beam lithography를 이용하여 원하는 패턴을 형성시킨 후 그 위에 다양한 방법으로 금 전극의 표면 개질화를 통해 패턴을 따라 단백질을 고정화시켰다. 금 전극의 표면 개질화는 단백질 수용기를 가진 기능성 유기분자들을 사용하였으며 형성된 패턴을 따라 개질화된 금 전극에 self-assembly 기법을 사용하여 단백질을 고정화시켰다. 합성한 감광성 폴리이미드의 정량·정성 분석은 HPLC, 원소분석, 1H-NMR, FT-IR 및 UV-Visible 분광학 장치를 사용하여 행하였으며 AFM은 bias voltage, scan rate, LB 막의 두께 등에 따른 패턴의 특성을 분석하여 패턴 형성을 위한 조건을 최적화하였다. 광학현미경으로 패턴형성을 확인하였으며 제조한 패턴을 따라 단백질 cytochrome c의 고정화 및 물리 전기화학적 특성은 AFM 및 Cyclic Voltammetry를 이용하여 조사하였다.
함정민,민대규,최철재 한국유통경영학회 2023 유통경영학회지 Vol.26 No.4
Purpose: The aim of this study is to verify the impact of actual self-congruity and ideal self-congruity on brand attachment, while considering the moderating effect of consumers’ gender characteristics. The study focuses on the millennial generation, a young consumer group in Korea. Furthermore, this research seeks to determine the causal relationship between brand attachment and brand commitment, attitudinal loyalty, and behavioral loyalty. Additionally, the study aims to confirm the mediating role of brand commitment in the relationship among these variables. Research design, data, and methodology: The data for this study were collected through individual interviews with 350 domestic millennial consumers who had recently shopped for luxury brands. A total of 339 valid questionnaires were analyzed for empirical analysis. The validity and reliability of the data, as well as the empirical analysis, were tested. The study employed a structural equation model analysis to verify the model fit and test the proposed research hypotheses. Results: Both actual self-congruity and ideal self-congruity exhibited a positive influence on brand attachment. Brand attachment, in turn, positively affected brand commitment and attitudinal loyalty, although it did not significantly impact behavioral loyalty. Brand commitment demonstrated a positive effect on both attitudinal loyalty and behavioral loyalty. Additionally, attitudinal loyalty had a positive impact on behavioral loyalty. The relationship between brand attachment and attitudinal loyalty was partially mediated by brand commitment, whereas the relationship between brand attachment and behavioral loyalty was fully mediated by brand commitment. Gender characteristics were found to moderate the relationship between actual self-congruity and brand attachment, but no moderating effect was observed between ideal self-congruity and brand attachment. Research implications or Originality: Luxury brand managers and marketers should recognize that millennials constitute the primary consumer base for luxury brands. It is crucial for them to develop brand strategies that align with the millennial identity. Specifically, strategies should be devised to enhance brand commitment and foster brand loyalty by incorporating self-concept elements that align with consumers’ gender characteristics.