3D Bioprinting of Diatom-Laden Living Materials for Water Quality Assessment.

Diatoms have long been used as living biological indicators for the assessment of water quality in lakes and rivers worldwide. While this approach benefits from the great diversity of these unicellular algae, established protocols are time-consuming and require specialized equipment. Here, this work 3D prints diatom-laden hydrogels that can be used as a simple multiplex bio-indicator for water assessment. The hydrogel-based living materials are created with the help of a desktop extrusion-based printer using a suspension of diatoms, cellulose nanocrystals (CNC) and alginate as bio-ink constituents. Rheology and mechanical tests are employed to establish optimum bio-ink formulations, whereas cell culture experiments are utilized to evaluate the proliferation of the entrapped diatoms in the presence of selected water contaminants. Bioprinting of diatom-laden hydrogels is shown to be an enticing approach to generate living materials that can serve as low-cost bio-indicators for water quality assessment.

[Psychotherapeutic Work with Relatives and Couples in Selected Mental and Physical Illnesses]. / Psychotherapeutische Arbeit mit Angehörigen und Paaren bei psychischen und körperlichen Erkrankungen.

A physical or mental illness affects not only patients but also their family environment. The immediate (caring) relatives are of particular importance in coping with the illness. However, they are often overlooked as invisible patients in the second row. Using selected diseases such as cancer, dementia and pain as examples, the following article will illustrate the special importance of working with relatives and couples. The focus in this article is on adult relatives. The group of children as relatives requires separate consideration.

Pre-surgery optimization of patients' expectations to improve outcome in heart surgery: Study protocol of the randomized controlled multi-center PSY-HEART-II trial.

The PSY-HEART-I trial indicated that a brief expectation-focused intervention prior to heart surgery improves disability and quality of life 6 months after coronary artery bypass graft surgery (CABG). However, to investigate the clinical utility of such an intervention, a large multi-center trial is needed to generalize the results and their implications for the health care system. The PSY-HEART-II study aims to examine whether a preoperative psychological intervention targeting patients' expectations (EXPECT) can improve outcomes 6 months after CABG (with or without heart valve replacement). EXPECT will be compared to Standard of Care (SOC) and an intervention providing emotional support without targeting expectations (SUPPORT). In a 3-arm multi-center randomized, controlled, prospective trial (RCT), N = 567 patients scheduled for CABG surgery will be randomized to either SOC alone or SOC and EXPECT or SOC and SUPPORT. Patients will be randomized with a fixed unbalanced ratio of 3:3:1 (EXPECT: SUPPORT: SOC) to compare EXPECT to SOC and EXPECT to SUPPORT. Both psychological interventions consist of 2 in-person sessions (à 50 minute), 2 phone consultations (à 20 minute) during the week prior to surgery, and 1 booster phone consultation post-surgery 6 weeks later. Assessment will occur at baseline approx. 3-10 days before surgery, preoperatively the day before surgery, 4-6 days later, and 6 months after surgery. The study's primary end point will be patients' illness-related disability 6 months after surgery. Secondary outcomes will be patients' expectations, subjective illness beliefs, quality of life, length of hospital stay and blood sample parameters (eg, inflammatory parameters such as IL-6, IL-8, CRP). This large multi-center trial has the potential to corroborate and generalize the promising results of the PSY-HEART-I trial for routine care of cardiac surgery patients, and to stimulate revisions of treatment guidelines in heart surgery.

Incorporating psychosocial care into routine oncological care: Insights into challenges and strategies from certified cancer centers' audit data.

PURPOSE: Provision of psychosocial care is obligatory in cancer centers certified in accordance with the criteria of the German Cancer Society, but the extent to which it is utilized differs greatly between centers. Anomalous utilization percentages are discussed during certification audits. This analysis aims to describe (1) how certified centers explain psychosocial care utilization percentages during audits and (2) the measures they then plan for improving psychosocial care utilization. The aim of the analysis is to help understand patterns of psychosocial care utilization in oncology and reduce potential disparities by describing the challenges that cancer centers face and their strategies for integrating psychosocial care into routine oncological care. METHODS: The content of free-text comments regarding psychosocial utilization percentages by certified centers during certification audits in 2019 was analyzed. In total, 178 comments were analyzed from 116 prostate, colorectal, and breast cancer centers in Germany, Switzerland, Austria, Italy, and Luxembourg. RESULTS: The explanations for utilization percentages most often mentioned involved patients' levels of interest and need, outpatient care, staff shortages, inclusion of psychosocial care in other processes in the center, documentation issues, and factors regarding different legal regulations in countries outside Germany. The measures most often planned for improving psychosocial care utilization involved adjusting work processes, increasing staff resources, optimizing documentation, and establishing quality-assurance groups/task forces. CONCLUSION: This exploratory analysis shows that the challenges and strategies involved in incorporating psychosocial care into routine oncological care are diverse. Further research should identify process-level strategies that can promote the integration of psychosocial care.

The impact of post-traumatic stress on the mental state of university hospital physicians - a cross sectional study.

BACKGROUND: Hospital physicians have an increased risk for post-traumatic stress caused by work-related trauma. This study examines the frequency of reported traumatic events (TE), post-traumatic stress (PTS) and its possible consequences for the mental state and work ability of physicians at a university hospital. METHODS: As part of the mandatory psychological risk assessment, n = 145 physicians (n = 56 female; 38.6%) were examined at a university hospital in Germany in a cross sectional study. TE, PTS and symptoms of depression and anxiety were assessed using the self-report questionnaires "Freiburger Screening Fragebogen to identify patients at risk for the development of a post-traumatic stress disorder in the group of severely injured patients" (PTBS-13), the "Patient Health Questionnaire" (PHQ-2) and the "Generalized Anxiety Disorder scale" (GAD-2). Work ability was assessed using a modified version of the questionnaire for workplace analysis (KFZA). The response rate was 52%. RESULTS: Traumatic events were experienced by n = 125 physicians (86.2%) throughout their whole career. Of these, 19 physicians (15.2%) reported PTS. PTS is reported by 12 of 56 female physicians (63.2%), compared to 7 of 89 reports of PTS by male physicians (36.8%). Physicians with PTS symptoms had higher depression scores (p = 0.007) compared to physicians without TE or with TE, but without PTS. Physicians with PTS reported significantly reduced work ability caused by constantly interrupted work (p = 0.03). Female gender was the greatest risk factor for the development of PTS. (p = 0.001). CONCLUSIONS: Physicians - especially females - with PTS may have an increased risk of developing depressive symptoms. Therefore, interventions aimed at reducing trauma-related stress symptoms may be helpful in improving mental health of hospital physicians. Further studies with more physicians from different hospitals are necessary to support the results.

[Partnership and family aspects of cancer]. / Partnerschaftliche und familiäre Aspekte bei Krebserkrankungen.

Cancer is not only a challenge for the patient, but can also be associated with psychosocial distress for relatives, especially partners and minor children. Although studies on the long-term effects of cancer on partners, the partnership, and child development are still rare, there are indications that the psychological distress on relatives may become chronic, and that parental illness is a risk factor for a child to develop mental disorders. In addition, a deterioration in partnership satisfaction also increases the risk of separation.Psycho-oncology care should therefore not only consider the patient's psychosocial burden but also that of the partner, as well as its effect on the partnership. Appropriate offers, for example to increase partnership and sexual satisfaction, communication, or dyadic coping, should be made. Children should also be treated as relatives in care. Focusing on both the child's distress and on improving the parent-child relationships and parenting behavior can help children to cope with parental illness in the long term. Thus, cancer should be viewed on the individual, dyadic, and family level, and psychosocial care services should be provided at all levels.

Are women more afraid than men? Fear of recurrence in couples with cancer - predictors and sex-role-specific differences.

PURPOSE: Although fear of cancer recurrence (FoR) is one of the major concerns in cancer patients and their partners with approximately 49% reporting moderate to high FoR, few studies investigated predictors and sex-role-specific differences. The aim of the current study was to investigate FoR in couples with different types of cancer and to gain a deeper understanding of sex and role-specific differences and predictors of FoR in patients and partners. DESIGN: Cross-sectional study in Germany. Sample: N = 188 couples with prostate (PC; n=52), laryngeal (LC; n=21) or breast cancer (BC; n=115) participated. All PC and LC patients were males, all BC patients were females. METHODS: Fear of recurrence, depression, and relationship satisfaction were measured with validated questionnaires (Fear of Progression Questionnaire, Patient Health Questionnaire, Hospital Anxiety and Depression Scale, Quality of Marriage Index) in couples with PC, LC, or BC. FINDINGS: Results indicated sex-role-specific differences. For women, FoR was higher for patients (M = 35.76) than for caregivers (M = 27.11). For males, spouses of women with BC (M = 30.1) showed higher FoR than male PC or LC patients (M = 24.9). Moreover, in couples there was a correlation between the FoR of one and the other (PC: r = .51, BC: r = .31, LC: r = .41). Depression was as a significant predictor, with a positive relationship to FoR. Moreover, in men with PC and LC besides depression, age emerged as significant predictor with a negative relationship to FoR. The Actor-Partner-Interdependence-Model showed for couples with PC or LC significant actor effects, both for patients and partners. Moreover, a significant partner effect emerged for patients' depression on partners' FoR. For couples with BC only significant actor effects occurred. CONCLUSIONS: FoR remains a major concern for both cancer patients and their partners. Implications for Psychosocial Providers or Policy: FoR should be considered both in cancer patients and their spouses. In addition, sex and role effects should be taken into account in treatment of FoR.

Cellulose-Based Microparticles for Magnetically Controlled Optical Modulation and Sensing.

Responsive materials with birefringent optical properties have been exploited for the manipulation of light in several modern electronic devices. While electrical fields are often utilized to achieve optical modulation, magnetic stimuli may offer an enticing complementary approach for controlling and manipulating light remotely. Here, the synthesis and characterization of magnetically responsive birefringent microparticles with unusual magneto-optical properties are reported. These functional microparticles are prepared via a microfluidic emulsification process, in which water-based droplets are generated in a flow-focusing device and stretched into anisotropic shapes before conversion into particles via photopolymerization. Birefringence properties are achieved by aligning cellulose nanocrystals within the microparticles during droplet stretching, whereas magnetic responsiveness results from the addition of superparamagnetic nanoparticles to the initial droplet template. When suspended in a fluid, the microparticles can be controllably manipulated via an external magnetic field to result in unique magneto-optical coupling effects. Using a remotely actuated magnetic field coupled to a polarized optical microscope, these microparticles can be employed to convert magnetic into optical signals or to estimate the viscosity of the suspending fluid through magnetically driven microrheology.

[Interactions between Partnership Quality, Life Satisfaction and Partnership Stability of Mothers with Underage Children - A Ten-Year Follow-up Study]. / Wechselseitige Einflüsse von Beziehungsqualität, Lebenszufriedenheit und Partnerschaftsstabilität bei Müttern mit minderjährigen Kindern ­ eine Zehn-Jahres-Untersuchung.

BACKGROUND: Although a stable and satisfactory relationship is an important aim in life, every third marriage is currently being divorced. Life satisfaction as well as the transition to parenthood seem to be significant factors. Therefore, the current longitudinal study examines the association between relationship quality, stability, life satisfaction of mothers and other family characteristics over a ten-year period. METHODS: Longitudinal data from N=249 mothers were analyzed in terms of partnership stability, quality, life satisfaction and other variables using regression analyses. RESULTS: Mother's satisfaction with life remained relatively stable over 10 years, while relationship quality decreased significantly over time. Especially the interindividual life satisfaction seemed to be a significant predictor for long-term partnership quality, mental health of mother and child, social status and critical life events. The initial relationship quality also appeared to be a significant predictor for the perceived life satisfaction and mothers' mental health. Only marginal correlations were found between life satisfaction and partnership stability. CONCLUSION: This study shows bidirectional associations between relationship quality and life satisfaction over the course of 10 years. Especially life satisfaction seemed to have an impact on diverse family factors. The findings should be used to develop new or existing prevention and intervention programs for partnership, whereas life satisfaction of the individual should be spotlighted.

Body image in men with prostate or laryngeal cancer and their female partners.

Objectives: The study examines body image of male cancer patients and their female partners as well as factors influencing body image. Methods: N = 73 heterosexual couples in which the male partner was diagnosed with prostate (PC; n = 52) or laryngeal cancer (LC; n = 21) completed questionnaires on body image acceptance (Self Image Scale), relationship satisfaction (Quality of Marriage Questionnaire), and cancer-related distress (Questionnaire on Stress in Cancer Patients). The body image was assessed from two perspectives: self-acceptance (which measures a person's satisfaction or acceptance of the body) and partner-acceptance (which assesses a person's perception of the partners' appraisals of the body). Results: No differences occurred in body image acceptance between men with PC or LC. Patients with PC rated the perceived partner-acceptance lower than did their female partners. In couples with LC, women rated the self-acceptance of their partners higher than did the patients themselves. Multiple regression analysis revealed that for survivors of PC, cancer-related distress, relationship satisfaction and partner-acceptance emerged as significant predictors of self-acceptance. The only significant predictor of partner-acceptance was men's self-acceptance. Conclusions: The dissatisfaction with physical appearance is found in PK and LK patients and seems to persist for a long time. Impairment of patients' body image should be identified and addressed to prevent the negative effects on psychosocial stress for patients and relationship satisfaction.

INPART - a psycho-oncological intervention for partners of patients with haemato-oncological disease - study protocol.

BACKGROUND: Suffering from cancer confronts both the patient and their partner with a number of psychosocial challenges in various aspects of their life. These challenges may differentially impact on quality of life, coping ability and compliance to treatment. This especially holds true for haemato-oncological diseases. To date, psychological interventions have predominantly been developed for oncological patients however specific interventions for partners of haemato-oncological patients are rare. In this study we aim to conduct a psycho-oncological group-intervention for partners of patients with haemato-oncological diseases. The aim of the intervention is to significantly reduce symptoms of depression and anxiety in the partners and the patient, as well as enhancing dyadic coping. METHODS: The design of the INPART-study is an unblinded, randomised controlled trial with 2 treatment conditions (experimental and control) and assessments at baseline, 3 and 6 months. It will be conducted at three study centres: the university medical centre's in Leipzig, Hannover and Ulm. The outcome criteria will be a reduction in depressive and anxiety symptoms as well as an improvement of dyadic coping. DISCUSSION: This trial shall provide information regarding the efficiency of a psycho-oncological intervention for partners of patients with haemato-oncological diseases and give references to the possible outcome in terms of dyadic coping and the reduction of mental strain. The study was supported by a grant from the German José Carreras Leukaemia Foundation. TRIAL REGISTRATION: ISRCTN16085028 ; 20/03/2019.

Assessment of Use and Preferences Regarding Internet-Based Health Care Delivery: Cross-Sectional Questionnaire Study.

BACKGROUND: There has been an incremental increase in the use of technology in health care delivery. Feasibility, acceptability, and efficacy of interventions based on internet technologies are supported by a growing body of evidence. OBJECTIVE: The aim of this study was to investigate use and preferences in the general adult population in Germany for remote, internet-based interaction (eg, email, videoconferencing, electronic medical records, apps). METHODS: A nationwide cross-sectional questionnaire survey in adults that was representative in terms of age, sex and educational level was carried out. RESULTS: A total of 22.16% (538/2428) of survey participants reported not using the internet for work or private use. The nonuser phenotype can be described as being older, having lower educational and income status, and living in less populated areas. The majority of participants within the cohort of internet users reported that they would not consider using electronic medical records (973/1849, 52.62%), apps (988/1854, 53.29%), or emails to report symptoms (1040/1838, 56.58%); teleconference with one (1185/1852, 63.98%) or more experts (1239/1853, 66.86%); or participate in video psychotherapy (1476/1853, 79.65%) for the purpose of medical consultation or treatment. Older age and lower educational level were the most robust predictors of assumed future denial of use. CONCLUSIONS: Our results point toward low use and preference rates among the general population for the use of telemedicine. It also seems that those who might benefit from telemedical interventions the most, are, in fact, those who are most hesitating. These low use and preference rates of eHealth should be considered prior to designing and providing future telemedical care, supporting the need for easy-to-use, data secure solutions.

[Relationship Strain Parkinson's Disease! Gender-Specific Distress of Partners of Patients with Parkinson's Disease]. / Beziehungsprüfung Parkinson! Geschlechtsspezifische psychische Belastungen bei Angehörigen von Morbus Parkinson-Patienten und ihr Zusammenhang zu wahrgenommenen Defiziten.

A Parkinson's disease is attended by high strain for the patients and an obvious loss of relationship functioning. Partners of patients (N=110) were evaluated via self-assessment in terms of own depression (PHQ-9), own fear of progression (PA-F-P-KF), relationship quality (PFB) as well as perceived deficits in everyday life and nonverbal communication. 26% of women and 11% of men showed depression scores, 51% of women and 41% of men dysfunctional fear of progression and about 60% were unsatisfied with their relationship. Gender-specific differences regarding the severity of the symptoms and their distress occurred. The severity of symptoms was estimated highest by spouses of male patients with Parkinson's disease, whereas female spouses showed higher psychological distress than male spouses. Moreover, restrictions of everyday life were associated with depression (r=0.40, p<0.05), fear of progression (r=0.40, p<0.05) und relationship quality (r=-0.52, p<0.05) as well as deficits in nonverbal communication with depression (r=0.37, p<0.05), fear of progression (r=0.27, p<0.05) und relationship quality (r=-0.49, p<0.05). Regression analysis to predict relationship quality explained 46% of the variance. As significant predictors emerged cognitive deficits in everyday life, lacking eye contact, physical mobility and pain. Due to the high association of relationship quality and restrictions through the Parkinson's disease, interventions with couples were discussed.

[Impact of Emotion Regulation and Emotional Arousal on Quality of Life and Adherence of Couples after Kidney Transplantation]. / Einfluss von Emotionsregulation und emotionaler Erregung auf Lebensqualität und Adhärenz bei Paaren nach Nierentransplantation.

INTRODUCTION: Nonadherence to immunosuppressive medication increases the risk of graft failure. Maladaptive emotion regulation strategies (ERS) seem to be a risk factor for nonadherence, whereas for patients in relationships spousal support appears as a protective resource. Emotional arousal, objectively measured by the fundamental frequency (f0) during spousal supportive communication is associated with supportive behavior. MATERIALS & METHODS: This study examined the relationship between beliefs about immunosuppressive medication, quality of life, ERS, emotions and emotional arousal, assessed during social support interactions of both spouses of N=50 couples after kidney transplantation. RESULTS: Maladaptive ERS of the transplant recipient were associated with lower mental quality of life of the partner, marginally higher own negative affect and lower beliefs about medication. Maladaptive ERS of the partner showed negative correlations with own mental quality of life. Regarding f0, gender differences were found. Higher f0 of the male transplant recipient were associated with more maladaptive ERS of the female partner. Marginally significate correlations were found with lower own beliefs about medication. Higher f0 of the wife of the male transplant recipient showed correlations with lower own positive affect, more negative affect of the male patient and lower beliefs about medication. Higher f0 of female transplant recipients were associated with lower own maladaptive ERS and lower maladaptive ERS of the husband. DISCUSSION: The findings support the relevance of early interventions focusing on identifying and modifying maladaptive ERS for both the patient and partner.

The Transplant Evaluation Rating Scale (TERS): A Tool for the Psychosocial Evaluation of Lung Transplant Candidates.

OBJECTIVES: An evaluation of psychosocial functioning prior to lung transplantation is advisable for anticipating behavioral difficulties and for screening for any psychological distress that might be harmful to posttransplantation outcomes and adjustment. METHODS: In this cross-sectional, single-center study, the level of psychosocial functioning of N = 75 patients before lung transplantation was rated using the Transplant Evaluation Rating Scale (TERS). RESULTS: he reliability of the TERS total score was satisfactory at α = 0.75. A two-factorial solution (emotional sensitivity; defiance) was found. Higher TERS scores were significantly associated with higher depressive and anxiety symptoms (r = .38/r = .42), lower quality of life (r = -.26), and fewer years abstinent from smoking (r = -.35). No associations were found with lung disease and symptom severity. CONCLUSIONS: The TERS appears to be a reliable and valid measure with clinical utility for specifying behavioral concerns prior to lung transplantation.

[Emotional Arousal (Voice Stress) and Posttraumatic Growth as well as Relationship Satisfaction of Partners of Women with Breast Cancer in the Context of Social Support]. / Stimmlich enkodierte emotionale Erregung (Voice Stress) und Posttraumatische Reifung sowie Partnerschaftszufriedenheit bei Partnern von Brustkrebspatientinnen im Kontext der sozialen Unterstützung.

Introduction Breast cancer is associated with significant psychosocial strains for both patients and partners. Constructive social support and positive communication behavior have been shown to be protective against the burdens associated with breast cancer. Individual levels of emotional arousal during social support interactions with one's spouse are an important aspect of couples' support behaviors and can be assessed via vocal fundamental frequency (f0). Methods N=44 couples had standardized seven-minute long interactions asking the male partner to describe his thoughts and feelings with regard to their wives' breast cancer. Using actor-partner interdependence models (APIM), f0's associations with individual posttraumatic growth (PTG) and perceived marital quality were differentially investigated. Results Significant actor effects for f0 and PTG were found for both husbands as well as tendencies for partner effects and wives. Perceived marital quality was not significantly associated with one's own levels of emotional arousal. No significant partner effects emerged for any of the variables of interest. Discussion Contrary to findings in couples' conflict discussions, higher levels of emotional arousal in social support interactions are associated with positive aspects of psychological functioning. F0 during social support could be associated with higher levels of self-efficacy, which might be beneficial for PTG and constructive ways of emotional expression. Constructive expression of emotional arousal could lead to heightened involvement in support interactions and may be voiced via higher levels of f0. Further analyses to replicate these findings are necessary.

Effect of Surface Charge on Surface-Initiated Atom Transfer Radical Polymerization from Cellulose Nanocrystals in Aqueous Media.

Cellulose nanocrystals (CNCs) with different charge densities were utilized to examine the role of electrostatic interactions on surface-initiated atom transfer radical polymerization (SI-ATRP) in aqueous media. To this end, growth of hydrophilic uncharged poly(N,N-dimethylacrylamide) (PDMAM) brushes was monitored by electrophoresis, (1)H NMR spectroscopy, and dynamic light scattering (DLS). Molecular weight and polydispersity of PDMAM brushes was determined by GPC analysis of hydrolytically cleaved polymers. Initiator and polymer brush grafting densities, and thus, initiator efficiencies were derived from elemental analysis. Higher initiator efficiency of polymer brush growth was observed for CNCs with higher anionic surface sulfate half-ester group density, but at the expense of high polydispersity caused by inefficient deactivation. PDMAM grafts with number-average molecular weights up to 530 kDa and polydispersity indices <1.5 were obtained under highly diluted monomer concentrations. The role of surface chemistry on the growth of neutral polymer brushes from CNCs in water is emphasized and a model of the interfacial region at the onset of polymerization is proposed. The results presented here could have implications for other substrates that present surface charges and for the assumption that the kinetics of Cu-mediated SI-CRP are analogous to those conducted in solution.

TEMPO-Oxidized Nanofibrillated Cellulose as a High Density Carrier for Bioactive Molecules.

Controlled and efficient immobilization of specific biomolecules is a key technology to introduce new, favorable functions to materials suitable for biomedical applications. Here, we describe an innovative and efficient, two-step methodology for the stable immobilization of various biomolecules, including small peptides and enzymes onto TEMPO oxidized nanofibrillated cellulose (TO-NFC). The introduction of carboxylate groups to NFC by TEMPO oxidation provided a high surface density of negative charges able to drive the adsorption of biomolecules and take part in covalent cross-linking reactions with 1-ethyl-3-[3-(dimethylamino)propyl]carbodiimide (EDAC) and glutaraldehyde (Ga) chemistry. Up to 0.27 µmol of different biomolecules per mg of TO-NFC could be reversibly immobilized by electrostatic interaction. An additional chemical cross-linking step prevented desorption of more than 80% of these molecules. Using the cysteine-protease papain as model, a highly active papain-TO-NFC conjugate was achieved. Once papain was immobilized, 40% of the initial enzymatic activity was retained, with an increase in kcat from 213 to >700 s(-1) for the covalently immobilized enzymes. The methodology presented in this work expands the range of application for TO-NFC in the biomedical field by enabling well-defined hybrid biomaterials with a high density of functionalization.

Fast and reversible direct CO2 capture from air onto all-polymer nanofibrillated cellulose-polyethylenimine foams.

Fully polymeric and biobased CO2 sorbents composed of oxidized nanofibrillated cellulose (NFC) and a high molar mass polyethylenimine (PEI) have been prepared via a freeze-drying process. This resulted in NFC/PEI foams displaying a sheet structure with porosity above 97% and specific surface area in the range 2.7-8.3 m(2)·g(-1). Systematic studies on the impact of both PEI content and relative humidity on the CO2 capture capacity of the amine functionalized sorbents have been conducted under atmospheric conditions (moist air with ∼400 ppm of CO2). At 80% RH and an optimum PEI content of 44 wt %, a CO2 capacity of 2.22 mmol·g(-1), a stability over five cycles, and an exceptionally low adsorption half time of 10.6 min were achieved. In the 20-80% RH range studied, the increase in relative humidity increased CO2 capacity of NFC/PEI foams at the expense of a high H2O uptake in the range 3.8-28 mmol·g(-1).