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1440 nm

Barry E DiBernardo, Gordon H Sasaki, Bruce E Katz, Joseph P Hunstad, Christine Petti, A Jay Burns
BACKGROUND: Treatment of cellulite using a 1440-nm YAG wavelength laser with side-firing fiber has proven safe and effective, lasting at least 6 months. OBJECTIVES: The authors evaluate the safety and efficacy of a single, subdermal procedure to treat the underlying structure of cellulite for at least 1 year. METHODS: Fifty-seven patients underwent a 3-step cellulite treatment with a 1440-nm Nd:YAG laser with a side-firing fiber and temperature-sensing cannula...
March 2016: Aesthetic Surgery Journal
PhaniKiran Vabbina, Nitin Choudhary, Al-Amin Chowdhury, Raju Sinha, Mustafa Karabiyik, Santanu Das, Wonbong Choi, Nezih Pala
Two dimensional (2D) Molybdenum disulfide (MoS2) has evolved as a promising material for next generation optoelectronic devices owing to its unique electrical and optical properties, such as band gap modulation, high optical absorption, and increased luminescence quantum yield. The 2D MoS2 photodetectors reported in the literature have presented low responsivity compared to silicon based photodetectors. In this study, we assembled atomically thin p-type MoS2 with graphene to form a MoS2/graphene Schottky photodetector where photo generated holes travel from graphene to MoS2 over the Schottky barrier under illumination...
July 22, 2015: ACS Applied Materials & Interfaces
Stefanie Luebberding, Nils Krueger, Neil S Sadick
BACKGROUND: Cellulite is a multifactorial condition that is present in 80-90 % of post-pubertal women. Despite its high prevalence, it remains a major cosmetic concern for women. A wide range of products and treatments for cellulite reduction is available; however, no systematic review has been performed so far to evaluate the efficacy of the available treatment options for cellulite. OBJECTIVE: The objective of this review is to provide a systematic evaluation of the scientific evidence of the efficacy of treatments for cellulite reduction...
August 2015: American Journal of Clinical Dermatology
Tanzina Khaleque, Mohammad Jalal Uddin, Robert Magnusson
We present the design and fabrication of guided-mode resonant broadband reflectors operating in transverse electric (TE) polarization. The structure consists of a subwavelength one-dimensional grating with a two-part period and a nanometric homogeneous layer of amorphous silicon on a quartz substrate. A representative reflector exhibits 99% reflectance over a 380-nm spectral range spanning 1440-1820 nm. The fabrication involves thin-film deposition, interferometric lithography, and reactive ion etching. Experimental reflectance greater than 90% is achieved over a ~360-nm bandwidth...
May 19, 2014: Optics Express
David Caplin, Jordan Austin
BACKGROUND: Primary Focal Axillary Hyperhidrosis (PHH) is a chronic disorder of excessive underarm sweat that causes significant impairment of an individual's daily activities. Multiple studies have established the psychosocial burden of PHH and its negative impact on quality of life. Current first-line therapies include the use of topical aluminum chloride with limited efficacy. Second line therapy includes the use of Botulinum toxin, which is effective, but duration is limited to 6-7 months...
April 2014: Journal of Drugs in Dermatology: JDD
Shuhei Kawamura, Yuka Unno, Takatsugu Hirokawa, Akira Asai, Mitsuhiro Arisawa, Satoshi Shuto
Rational scaffold hopping of a natural product belactosin A derivative was successfully achieved based on the pharmacophore model constructed. The peptidic scaffold was replaced by significantly simplified non-peptidic scaffolds, by which weak belactosin A (IC50 = 1440 nM) was converted into highly potent non-peptidic inhibitors (IC50 = 26-393 nM).
March 7, 2014: Chemical Communications: Chem Comm
Deshraj Jain, Prabha Shakya
BACKGROUND: Denture-related stomatitis is probably the most common form of oral candidiasis and its reported prevalence varies widely ranging up to 65%. In this thorough study, we evaluate the effect of Delmopinol application on Candida albicans adherence on heat cured denture base acrylic resin. MATERIALS AND METHODS: A total of 40 specimens of heat-cured acrylic resin were made, 20 specimens were contaminated before Delmopinol treatment and 20 specimens were contaminated after Delmopinol treatment...
September 2013: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
Yeon-Jee Yoo, Won-Jun Shon, Seung-Ho Baek, Mo K Kang, Hyeon-Cheol Kim, WooCheol Lee
INTRODUCTION: The purpose of this study was to investigate the efficacy of a 1440-nm neodymium:yttrium-aluminum-garnet (Nd:YAG) laser on relieving pain in relation to the levels of inflammatory cytokine and neuropeptides in the root canal exudates of teeth with persistent symptomatic apical periodontitis. METHODS: Forty teeth with persistent symptomatic apical periodontitis were randomly assigned to treatment groups: group L, intracanal irradiation of 1440-nm Nd:YAG laser with a 300-μm-diameter fiberoptic tip in addition to conventional root canal retreatment, and group C, conventional root canal re-treatment...
January 2014: Journal of Endodontics
Bruce Katz
BACKGROUND: Cellulite gives the skin surface an orange peel or mattress-like appearance thought to be caused by expansion of subcutaneous fat, fibrotic septae and, dermal laxity and atrophy. OBJECTIVE: To evaluate the safety and efficacy of a single cellulite treatment using an Nd:YAG 1440-nm laser delivered with a special fiber delivery system and temperature control. METHODS: Women with cellulite on their thighs and buttocks were enrolled in a prospective Institutional Review Board-approved study...
November 2013: Journal of Drugs in Dermatology: JDD
Yves T Wang, Shi Gu, Andrew M Rollins, Michael W Jenkins
Conduction maps of early embryonic hearts with optical mapping point to heterogeneous conduction patterns that quickly evolve over time. In adult hearts, electrical pacing is utilized to determine the anisotropy of the conduction patterns and the susceptibility of the tissue to arrhythmias. However, studying electrophysiology in developing hearts is limited due to their size. Electrical pacing creates an electrical artifact that obscures recordings from the entirety of early embryonic hearts. In this study, optical point stimulation using a 1440-nm near-infrared diode laser with a 12-µm diameter beam waist was used to pace embryonic quail hearts...
2013: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Julie E Nkanta, Ramón Maldonado-Basilio, Kaiser Khan, Abdessamad Benhsaien, Sawsan Abdul-Majid, Jessica Zhang, Trevor J Hall
A broadband and low-polarization-sensitive multi-quantum well semiconductor optical amplifier with an asymmetric structure is reported for operation in the E-band wavelength range. A gain peak of 20 dB for a bandwidth of more than 50 nm is measured for both TE and TM polarizations. A maximum polarization sensitivity of 3 dB is measured for a broad wavelength range from 1340 to 1440 nm.
August 15, 2013: Optics Letters
Barry DiBernardo, Gordon Sasaki, Bruce E Katz, Joseph P Hunstad, Christine Petti, A Jay Burns
BACKGROUND: Historically, treatments for cellulite have not been able to address all of its physiological components and require multiple sessions. OBJECTIVE: The authors evaluate the safety and efficacy of a single, subdermal procedure to treat the underlying structure of cellulite. METHODS: Fifty-seven patients underwent a 3-step cellulite treatment with a 1440-nm Nd:YAG laser with a side-firing fiber and temperature-sensing cannula. Efficacy was measured by the ability of blinded evaluators to distinguish baseline photos from those taken at 3 and 6 months posttreatment, as well as their rating of the results on a 5-point, 2-category ordinal photonumeric scale when comparing baseline photos to those taken at 2, 3, and 6 months posttreatment...
May 2013: Aesthetic Surgery Journal
Barry E Dibernardo
BACKGROUND: The neck is a prominent indicator of aging. Loss of subcutaneous fat, prominence of platysmal banding, jowling along the mandibular border, and excessive skin laxity due to loss of collagen and elastin are common conditions that are treated. Laser technology provides additional benefits when treating the first two anatomical layers of the neck. METHODS: A 7-category classification system of anatomic skin layers of the lower face was developed. Based on the classifications treatments include the use of laser, ultrasonic technology, and toxins...
April 2013: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
S D Emami, H A A Rashid, A Zarifi, A Zarei, M R K Soltanian, S Z M Yasin, H Ahmad, S W Harun
A new approach for filtering an optical band-pass in optical amplifier is proposed using a macro bending. The proposed filter leverages the bending loss of higher order modes at shorter wavelengths. At longer wavelengths, the filter increases fiber's bending loss as the fundamental mode 'tail' is leak out from the cladding. The combination of wavelength dependent loss at longer and shorter wavelength gives rise to the optical band-pass filter characteristic inside the fiber. The simulated spectral response of the filter is found to be in good agreement with the experimental results...
December 31, 2012: Optics Express
Xiaojun Jia, Zhihui Yan, Zhiyuan Duan, Xiaolong Su, Hai Wang, Changde Xie, Kunchi Peng
Entangled states of light including low-loss optical fiber transmission and atomic resonance frequencies are essential resources for future quantum information networks. We present the experimental achievement on the three-color entanglement generation at 852, 1550, and 1440 nm wavelengths for optical continuous variables. The entanglement generation system consists of two cascaded nondegenerated optical parametric oscillators (NOPOs). The flexible selectivity of nonlinear crystals in the two NOPOs and the tunable property of NOPO provide large freedom for the frequency selection of three entangled optical beams...
December 21, 2012: Physical Review Letters
Siti Maisurah Zakaria, Sharif Hussein Sharif Zein, Mohd Roslee Othman, John A Jansen
Electrospinning of hydroxyapatite (HA)/polyvinyl butyral solution resulted in the formation of fibers with average diameter of 937-1440 nm. These fibers were converted into HA nanoparticles with size <100 nm after undergoing calcination treatment at 600°C. The diameter of the fiber was found to be influenced by applied voltage and spinning distance. The injection flowrate did not affect the diameter significantly. The electrospinning method successfully reduced the commercial HA particle size in the range of 400-1100 nm into <100 nm...
July 2013: Journal of Biomedical Materials Research. Part A
Krisztina Gajda-Schrantz, Simon Tymen, Florent Boudoire, Rita Toth, Debajeet K Bora, Wolfram Calvet, Michael Grätzel, Edwin C Constable, Artur Braun
Solar hydrogen generation by water splitting in photoelectrochemical cells (PEC) is an appealing technology for a future hydrogen economy. Hematite is a prospective photoanode material in this respect because of its visible light conjugated band gap, its corrosion stability, its environmentally benign nature and its low cost. Its bulk and surface electronic structure has been under scrutiny for many decades and is considered critical for improvement of efficiency. In the present study, hematite films of nominally 500 nm thickness were obtained by dip-coating on fluorine doped tin oxide (FTO) glass slides and then anodised in 1 molar KOH at 500, 600, and 700 mV for 1, 10, 120 and 1440 minutes under dark conditions...
February 7, 2013: Physical Chemistry Chemical Physics: PCCP
Nazanin Saedi, Kathleen Petrell, Kenneth Arndt, Jeffrey Dover
BACKGROUND: The fractionated nonablative 1440-nm laser creates microscopic thermal wounds within the epidermis and the dermis and is used clinically to improve tone, texture, and color of skin. OBJECTIVE: We sought to investigate the use of this device to treat facial pores and to improve skin texture. METHODS: Twenty patients received 6 treatments at the highest tolerable energy level performed 2 weeks apart. Photographic assessments using the VISIA-CR (Canfield Scientific Inc, Fairfield, NJ) imaging system were performed...
January 2013: Journal of the American Academy of Dermatology
Gordon H Sasaki
This article reports on the early experience with the 1440-nm wavelength, using a specially designed side-firing fiber, in a four-step approach, primarily to the lower third of the midface and neck. The author presents the clinical protocol, procedure steps, outcomes, and adverse events of use of the laser. Outcomes are described at 3 months, 6 months, and 18 months.
October 2012: Clinics in Plastic Surgery
Haibin Yang, Jialing Zhang, Guiying Liu, Ping Zhang
OBJECTIVE: To determinate adenine, guanine, hypoxanthine, xanthine and uric acid simultaneously in meat, a reversed-phase high performance liquid chromatography (HPLC) was developed. METHODS: The meat were hydrolyzed with perchloric acid 10% (v/v) in boiling water for 60 mm. After the hydrolysate was adjusted to pH 4, centrifuge , and filtrated with a 0.45 mirom membrane, the supernatants were separated on an Agilent ZORBAX Eclipse XDB-C18 column (250 mm x 4.6 mm i...
March 2012: Wei Sheng Yan Jiu, Journal of Hygiene Research
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