• Archives of Plastic Surgery
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• 제49권1호
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• pp.29-33
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• 2022

The application of minimal invasive mastectomy has allowed surgeons to perform nipples-paring mastectomy via a shorter, inconspicuous incision under clear vision and with more precise hemostasis. However, it poses new challenges in microsurgical breast reconstruction, such as vascular anastomosis and flap insetting, which are considerably more difficult to perform through the shorter incision on the lateral breast border. We propose an innovative technique of transcutaneous medial fixation sutures to help in flap insetting and creating and maintaining the medial breast border. The sutures are placed after mastectomy and before flap transfer. Three 4-0 nylon suture loops are placed transcutaneously and into the pocket at the markings of the preferred lower medial border of the reconstructed breast. After microvascular anastomosis and temporary shaping of the flap on top of the mastectomy skin, the three corresponding points for the sutures are identified. The three nylon loops are then sutured to the dermis of the corresponding medial point of the flap. The flap is placed into the pocket by a simultaneous gentle pull on the three sutures and a combined lateral push. The stitches are then tied and buried after completion of flap inset.

• 대한본초학회지
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• 제35권2호
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• pp.1-6
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• 2020

Objectives : Heating process is the traditional processing method that has been applied to reduce the toxicity of dried resin of Toxicodendron vernicifluum (Anacardiacea) used as Geon-chil (乾漆, Lacca Rhois Exsiccata or Toxicodendri Resina). Urushiol, which is found in the plants of Toxicodendron genus, is a toxic compound that is absorbed into the skin and induces allergic dermatitis by being contacted. Hence, the reduction of urushiol level by heating processing of Geon-chil is crucial method for its medicinal application. Methods : Due to lack of Geon-chil processing-related articles, the articles researching the processing of lacquer (漆), as a coating material, were collected and analyzed to investigate the chemical change of urushiol during heating process. Results : The results demonstrate that the resin which was collected from the sap of T. vernicifluum tree was dried under warm and humid conditions repeatedly. During primary drying process, the laccase, a copper-containing enzyme in the resin, participated in the formation of urushiol polymers and thereafter urushiol-related toxicity could be reduced by making a lacquer harder and more stable. Moreover, heating a lacquer over 200℃ could cause thermo-degradation of urushiol polymers, and vaporized thermally degraded urushiol monomers and their by-products, which were determined using pyrolysis/GC-MS. Conclusions : These results support that heating process being performed over 200 ℃, such as stir-frying (炒) or calcination (煅), reduces the urushiol content in Geon-chil and hence, its medicinal use can be more stable without urushiol-related allergic reactions.

• 한국응용과학기술학회지
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• 제38권6호
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• pp.1433-1444
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• 2021

본 연구는 코로나 시대이후로 가속화된 뷰티분야의 4차 산업들과 융합으로 산업에서 요구되는 실무능력을 교육하기 위한 교육과정 개발을 목적으로 진행되었다. 여러 문헌의 탐색적 조사와 전문가의견을 수렴한 결과 뷰티산업은 앞으로 단일 아이템 또는 서비스 제공이 아닌 의료, 바이오, ICT, 인공지능 기술 등이 결합된 개인맞춤형 서비스 제공 산업으로 분야가 확장될 것으로 분석되었다. 분석 내용을 바탕으로 전통적인 뷰티산업에서 요구하는 기본 직무 능력 외에 갖추어야 할 디지털 활용능력을 추가하여 교육과정을 구성하고 과목을 도출하였다. 코로나 이후의 시대는 4차 산업혁명을 기반으로 다양한 산업의 변화를 가져올 것이며 이러한 변화에 대응하여 뷰티산업의 발전과 지속가능성을 위한 인재 개발을 위해 대학에서는 산업의 변화에 항상 주목해야 할 것이다.

• Journal of Microbiology and Biotechnology
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• 제32권12호
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• pp.1589-1598
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• 2022

Microfibrillated cellulose (MFC) is a valuable material with wide industrial applications, particularly for the food and cosmetics industries, owing to its excellent physiochemical properties. Here, we prepared high-solid microfibrillated cellulose (HMFC) from the centrifugation of Gelidium amansiiderived MFC right after fibrillation. Dispersion properties, morphology, and structural changes were monitored during processing. HMFC has a five-fold higher solid concentration than MFC without significant changes to dispersion properties. SEM images and FTIR spectra of HMFC revealed a stable surface and structure against centrifugal forces. HMFC exhibited 2,2'-azino-bis (3-ethylbenzothiazoline6-sulfonic acid) (ABTS) radical scavenging activity, although it could not scavenge 2,2-diphenyl-1- picrylhydrazyl (DPPH). Moreover, HMFC inhibited the generation of LPS-induced excessive nitrite and radial oxygen species in murine macrophage RAW264.7 cells. Additionally, HMFC suppressed LPS-induced Keap-1 expression in the cytosol but did not alter iNOS expression. HMFC also attenuated the UVB-induced phosphorylation of p38, c-Jun N-terminal kinase (JNK) 1/2, and extracellular-signal-regulated kinase (ERK) 1/2, as well as the phosphorylation of c-Jun in the immortalized human skin keratinocyte HaCaT cells. Therefore, the application of centrifugation is suitable for producing high-solid MFC as a candidate material for anti-inflammatory and antioxidative marine cosmeceuticals.

• 가정∙방문간호학회지
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• 제30권2호
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• pp.194-201
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• 2023

Purpose: Post-burn pruritus is one of the most prevalent complications experienced by burn patients. Though medications are prescribed for pruritus, managing this condition can prove challenging. The aim of this research was to develop and disseminate non-pharmacological self-management educational resources, and subsequently evaluate the effectiveness of implementing a percussion therapy approach. Methods: A one-group pretest-posttest design was employed to evaluate the effect of percussion therapy on one hundred patients, all of whom had suffered deep second-degree burns and undergone skin graft surgery. Variables such as the severity of pruritus, distress caused by pruritus, and satisfaction with pruritus treatment were scrutinized. A paired t-test was conducted to compare these variables before and after the intervention. Results: The majority of participants were diagnosed with third-degree burns, and the average Total Body Surface Area (TBSA) affected was 25.2%. Post-test results revealed a marked reduction in both severity and distress caused by pruritus. The intervention led to significant decreases in average severity and pain due to itchiness, and an increase in the satisfaction level following the application of percussion therapy. Conclusions: The implementation of the percussion was identified as effective in diminishing post-burn pruritus, alleviating pruritus-associated pain, and enhancing satisfaction with pruritus treatment. The percussion approach presents itself as a non-invasive, non-pharmacological strategy for managing pruritus in burn patients.

• 현장농수산연구지
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• 제14권1호
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• pp.47-59
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• 2012

사과 '후지'에서 유기 칼슘화합물(ACa)을 수관살포 농도별 및 생육후반기 횟수별 처리한 후 과실의 칼슘농도, 동녹 발생 및 과실품질에 미치는 영향을 조사한 결과는 다음과 같다. 생육기간중 ACa 수관살포의 적정농도는 엽에는 125배에서 1,000배, 과실에서는 125배 이었다. 생육기간중 ACa 500배 수관살포 적정횟수는 엽에는 1회 (9월 25일) ~ 3회 (9월 25일, 10월 5일, 15일), 과피에는 1회 (9월 25일), 과육에서는 2회 (9월 25일, 10월 5일) ~ 3회(9월 25일, 10월 5일, 15일)이었다. ACa 생육후반기 농도 및 살포 횟수 수관살포에 의한 약해발생은 육안으로 발견하지 못하였다.

• Medical Lasers
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• 제8권2호
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• pp.64-73
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• 2019

Background and Objectives The effectiveness of many physiotherapy modalities in reducing subcutaneous fat has been investigated in numerous previous studies. However, to the best of our knowledge, there have been no attempts to determine the effectiveness of physiotherapy modalities in body contouring. The present report determined the effect of 448-kHz capacitive resistive monopolar radiofrequency (CRMRF) in a porcine model. Materials and Methods This study investigated the effect of selective destruction of the subcutaneous fat layer in abdominal fat tissue using CRMRF. The effects of two types of CRMRF (capacitive electric transfer (CET) and resistive electric transfer (RET)) treatment were evaluated using regular digital photography in addition to thermal imaging evaluation, ultrasound measurement, hematological evaluation, and histologic analyses (H&E (hematoxylin and eosin), Oil red O, and immunohistochemistry staining). Results Preclinical evaluation was performed to obtain the data for comparison of the safety and efficacy of the subcutaneous fat reduction after applying CRMRF using CET and RET. After treatment, the thermal transmission was effective, and a 42-47℃ temperature change was observed in the fat layer while an approximately temperature of 42℃ was confirmed on the skin surface. Moreover, after the application of both types of CRMRF treatment, fibrotic septa were observed in the adipose tissue induced by heat at the treatment sites. TUNEL staining was also performed to confirm the process of apoptosis in the adipocytes. Conclusion These results suggest that both CET and RET for CRMRF treatment are safe and effective for subcutaneous fat reduction in a porcine model.

• 디자인융복합연구
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• 제16권1호
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• pp.97-109
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• 2017

현대에 들어서 건축물의 외관 디자인에 대한 관심이 커짐에 따라 기존의 획일화된 건축물이 아닌 다양한 미관의 건축물에 대한 니즈가 증가하고 있다. 그러나 아직까지 미관창출을 위한 국내의 폼 라이너 재료 및 디자인은 한정되어 있는 실정이다. 따라서 본 연구는 3D프린터를 활용하여 기존의 값비싼 몰드 제작과정을 생략하고 디지털 데이터를 이용하여 입체구조의 제품을 다양한 소재를 사용하여 경제적으로 제작, 콘크리트의 열화방지 수단을 겸비하고 구조물의 수명을 연장시켜 생애주기비용을 절감하는 효과를 기대할 수 있다. 본 연구는 3D 프린터를 활용하여 콘크리트 구조물의 위치, 주변 환경, 용도에 적합한 폼 라이너의 미관 및 입체조형 디자인을 다양하게 개발하는 것을 목적으로 한다. 본 연구에서는 3D 프린트를 활용한 실물 출력 실험을 통해 3D프린터를 활용한 콘크리트 폼 라이너가 실제 적용이 가능하다는 가능성을 확인하였으며, 콘크리트 구조물의 용도, 지역특성, 주변 환경, 사용자 등을 고려하여 입체적이며 예술적인 조형미관을 위한 폼 라이너 디자인을 제안하였다.

• 한국전문물리치료학회지
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• 제30권4호
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• pp.288-305
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• 2023

Background: The compression therapy, which is the standard treatment for lymphedema patients, may be difficult to implement and contraindicated to some patients depending on their health condition. Objects: The purpose of this study is to investigate whether kinesiology taping (KT) can be used effectively and safely in the management of lymphedema as an alternative treatment through systematic review and meta-analysis. Methods: In February 2023, the literature was systematically collected through eight search engines with a combination of terms, 'lymphedema' and 'kinesiology taping.' We qualitatively analyzed the differences and safety of KT methods, and quantitatively meta-analyzed the effects of volume reduction in edema, range of motion (ROM), and pain improvement using Review Manager ver. 5. 4. To assess the risk of bias in the randomized controlled trial (RCT) studies, Risk of Bias was used. Results: A total of 616 articles searched and 20 studies were selected, including 12 RCTs and eight case studies. KT intervention could not replace multilayer compression bandage (MLB), but it demonstrated similar or better results compared to compression garment (CG), with reduced pain and improved intervention comfort. Studies reported skin adverse events ranging from 2.5% to 20.68%, with a total adverse event incidence of 7.7%. There was no significant difference in the application method of KT. As a result of the meta-analysis from the 8 RCTs, the KT intervention showed a mean difference (MD) of -7.18 with a 95% confidence interval (CI) [-12.64 to -1.72] in the volume change of lymphedema, while the pain difference was MD 0.82 with CI 95% [0.50 to 1.15], in comparison to the MLB and CG intervention. Conclusion: KT therapy led to a reduction in edema size, volume, pain, and improved ROM and quality of life. KT may be a viable option for lymphedema patients who have trouble applying traditional compression therapies.

• 감성과학
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• 제26권4호
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• pp.41-50
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• 2023

본 연구는 EMG(electromyography) 텍스타일 전극 개발을 목적으로 레이어 수의 디자인 및 원단을 다르게 하여 성능 및 신호 획득 안정성을 평가한다. 레이징 및 프레스 공정을 통하여 텍스타일 전극을 제조하며 Layer-0, Layer-1, Layer-2로 레이어 유무 및 수에 따른 결과를 분석했다. 이에 레이어 유무에 따라서는 근활성 측정에 영향을, 수가 많을수록 높은 성능이 나타남을 확인할 수 있었다. Layer-2 구조로 통일하여 5가지의 원단(네오프렌, 스판덱스 쿠션, 폴리에스테르 100%, 나일론 스판덱스, 광목 캔버스)으로 전극을 제조해 실험해 보았다. 성능적인 면에서, 원단의 중량이 높은 나일론 스판덱스가 높은 성능을 보였으며, 스판쿠션 텍스타일 전극이 근활성도 수득에 높은 안정성을 보였다. 이에 위 연구는 레이어에 따른 성능 연관성과 전극-피부사이의 닿는 면적 간의 관계 등을 고찰하여 슬리브 전체의 의복압을 늘리는 대신 특정 센서 측정 부위에만 높은 압력을 가함으로 차후 연구에서 레이어의 수 및 물성에 따른 전극의 공학적 설계 가능성을 제시한 의의가 있다.